/**
 * Copyright (c) 2008
 * Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * @namespace Oryx name space for different utility methods
 * @name ORYX.Utils
*/
ORYX.Utils = {
    /**
     * General helper method for parsing a param out of current location url
     * @example
     * // Current url in Browser => "http://oryx.org?param=value"
     * ORYX.Utils.getParamFromUrl("param") // => "value" 
     * @param {Object} name
     */
    getParamFromUrl: function(name){
        name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
        var regexS = "[\\?&]" + name + "=([^&#]*)";
        var regex = new RegExp(regexS);
        var results = regex.exec(window.location.href);
        if (results == null) {
            return null;
        }
        else {
            return results[1];
        }
    },
	
	adjustLightness: function(){
		return arguments[0];	
	},
	
	adjustGradient: function(gradient, reference){
		
		if (ORYX.CONFIG.DISABLE_GRADIENT && gradient){
		
			var col = reference.getAttributeNS(null, "stop-color") || "#ffffff";
			
			$A(gradient.getElementsByTagName("stop")).each(function(stop){
				if (stop == reference){ return; }
				stop.setAttributeNS(null, "stop-color", col);
			})
		}
	}
}
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

XMLNS = {
	ATOM:	"http://www.w3.org/2005/Atom",
	XHTML:	"http://www.w3.org/1999/xhtml",
	ERDF:	"http://purl.org/NET/erdf/profile",
	RDFS:	"http://www.w3.org/2000/01/rdf-schema#",
	RDF:	"http://www.w3.org/1999/02/22-rdf-syntax-ns#",
	RAZIEL: "http://b3mn.org/Raziel",

	SCHEMA: ""
};

//TODO kann kickstart sich vielleicht auch um die erzeugung von paketen/
// namespaces k�mmern? z.b. requireNamespace("ORYX.Core.SVG");
var Kickstart = {
 	started: false,
	callbacks: [],
	alreadyLoaded: [],
	PATH: '',

	load: function() { Kickstart.kick(); },

	kick: function() {
		//console.profile("loading");
		if(!Kickstart.started) {
			Kickstart.started = true;
			Kickstart.callbacks.each(function(callback){
				// call the registered callback asynchronously.
				window.setTimeout(callback, 1);
			});
		}
	},

	register: function(callback) {
		//TODO Add some mutual exclusion between kick and register calls.
		with(Kickstart) {
			if(started) window.setTimeout(callback, 1);
			else Kickstart.callbacks.push(callback)
		}
	},

	/**
	 * Loads a js, assuring that it has only been downloaded once.
	 * @param {String} url the script to load.
	 */
	require: function(url) {
		// if not already loaded, include it.
		if(Kickstart.alreadyLoaded.member(url))
			return false;
		return Kickstart.include(url);
	},

	/**
	 * Loads a js, regardless of whether it has only been already downloaded.
	 * @param {String} url the script to load.
	 */
	include: function(url) {

		// prepare a script tag and place it in html head.
		var head = document.getElementsByTagNameNS(XMLNS.XHTML, 'head')[0];
		var s = document.createElementNS(XMLNS.XHTML, "script");
		s.setAttributeNS(XMLNS.XHTML, 'type', 'text/javascript');
	   	s.src = Kickstart.PATH + url;

		//TODO macht es sinn, dass neue skript als letztes kind in den head
		// einzubinden (stichwort reihenfolge der skript tags)?
	   	head.appendChild(s);

		// remember this url.
		Kickstart.alreadyLoaded.push(url);

		return true;
	}
}

// register kickstart as the new onload event listener on current window.
// previous listener(s) are triggered to launch with kickstart.
Event.observe(window, 'load', Kickstart.load);/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

var ERDF = {

	LITERAL: 0x01,
	RESOURCE: 0x02,
	DELIMITERS: ['.', '-'],
	HASH: '#',
	HYPHEN: "-",

	schemas: [],
	callback: undefined,
	log: undefined,

	init: function(callback) {
		
		// init logging.
		//ERDF.log = Log4js.getLogger("oryx");
		//ERDF.log.setLevel(Log4js.Level.ALL);
		//ERDF.log.addAppender(new ConsoleAppender(ERDF.log, false));

		//if(ERDF.log.isTraceEnabled())
		//	ERDF.log.trace("ERDF Parser is initialized.");

		// register callbacks and default schemas.
		ERDF.callback = callback;
		ERDF.registerSchema('schema', XMLNS.SCHEMA);
		ERDF.registerSchema('rdfs', XMLNS.RDFS);
	},

	run: function() {

		//if(ERDF.log.isTraceEnabled())
		//	ERDF.log.trace("ERDF Parser is running.");

		// do the work.
		return ERDF._checkProfile() && ERDF.parse();
	},
	
	parse: function() {
		
		//(ERDF.log.isDebugEnabled())
		//	ERDF.log.debug("Begin parsing document metadata.");
		
		// time measuring
		ERDF.__startTime = new Date();

		var bodies = document.getElementsByTagNameNS(XMLNS.XHTML, 'body');
		var subject = {type: ERDF.RESOURCE, value: ''};

		var result = ERDF._parseDocumentMetadata() &&
			ERDF._parseFromTag(bodies[0], subject);
			
		// time measuring
		ERDF.__stopTime = new Date();

		var duration = (ERDF.__stopTime - ERDF.__startTime)/1000.;
		//alert('ERDF parsing took ' + duration + ' s.');
		
		return result;
	},
	
	_parseDocumentMetadata: function() {

		// get links from head element.
		var heads = document.getElementsByTagNameNS(XMLNS.XHTML, 'head');
		var links = heads[0].getElementsByTagNameNS(XMLNS.XHTML, 'link');
		var metas = heads[0].getElementsByTagNameNS(XMLNS.XHTML, 'meta');

		// process links first, since they could contain schema definitions.
		$A(links).each(function(link) {
			var properties = link.getAttribute('rel');
			var reversedProperties = link.getAttribute('rev');
			var value = link.getAttribute('href');
			
			ERDF._parseTriplesFrom(
				ERDF.RESOURCE, '',
				properties,
				ERDF.RESOURCE, value);
				
			ERDF._parseTriplesFrom(
				ERDF.RESOURCE, value,
				reversedProperties,
				ERDF.RESOURCE, '');
		});

		// continue with metas.
		$A(metas).each(function(meta) {
			var property = meta.getAttribute('name');
			var value = meta.getAttribute('content');
			
			ERDF._parseTriplesFrom(
				ERDF.RESOURCE, '',
				property,
				ERDF.LITERAL, value);
		});

		return true;
	},
	
	_parseFromTag: function(node, subject, depth) {
		
		// avoid parsing non-xhtml content.
		if(node.namespaceURI != XMLNS.XHTML) { return; }
		
		// housekeeping.
		if(!depth) depth=0;
		var id = node.getAttribute('id');

		// some logging.
		//if(ERDF.log.isTraceEnabled())
		//	ERDF.log.trace(">".times(depth) + " Parsing " + node.nodeName + " ("+node.nodeType+") for data on " +
		//		((subject.type == ERDF.RESOURCE) ? ('<' + subject.value + '>') : '') +
		//		((subject.type == ERDF.LITERAL) ? '"' + subject.value + '"' : ''));
		
		/* triple finding! */
		
		// in a-tags...
		if(node.nodeName.endsWith(':a') || node.nodeName == 'a') {
			var properties = node.getAttribute('rel');
			var reversedProperties = node.getAttribute('rev');
			var value = node.getAttribute('href');
			var title = node.getAttribute('title');
			var content = node.textContent;

			// rel triples
			ERDF._parseTriplesFrom(
				subject.type, subject.value,
				properties,
				ERDF.RESOURCE, value,
				function(triple) {
					var label = title? title : content;
					
					// label triples
					ERDF._parseTriplesFrom(
						triple.object.type, triple.object.value,
						'rdfs.label',
						ERDF.LITERAL, label);
				});

			// rev triples
			ERDF._parseTriplesFrom(
				subject.type, subject.value,
				reversedProperties,
				ERDF.RESOURCE, '');
				
			// type triples
			ERDF._parseTypeTriplesFrom(
				subject.type, subject.value,
				properties);

		// in img-tags...
		} else if(node.nodeName.endsWith(':img') || node.nodeName == 'img') {
			var properties = node.getAttribute('class');
			var value = node.getAttribute('src');
			var alt = node.getAttribute('alt');

			ERDF._parseTriplesFrom(
				subject.type, subject.value,
				properties,
				ERDF.RESOURCE, value,
				function(triple) {
					var label = alt;
					
					// label triples
					ERDF._parseTriplesFrom(
						triple.object.type, triple.object.value,
						'rdfs.label',
						ERDF.LITERAL, label);
				});

		}
		
		// in every tag
		var properties = node.getAttribute('class');
		var title = node.getAttribute('title');
		var content = node.textContent;
		var label = title ? title : content;
		
		// regular triples
		ERDF._parseTriplesFrom(
			subject.type, subject.value,
			properties,
			ERDF.LITERAL, label);

		if(id) subject = {type: ERDF.RESOURCE, value: ERDF.HASH+id};
		
		// type triples
		ERDF._parseTypeTriplesFrom(
			subject.type, subject.value,
			properties);

		// parse all children that are element nodes.
		var children = node.childNodes;
		if(children) $A(children).each(function(_node) {
			if(_node.nodeType == _node.ELEMENT_NODE)
				ERDF._parseFromTag(_node, subject, depth+1); });
	},
	
	_parseTriplesFrom: function(subjectType, subject, properties,
		objectType, object, callback) {
		
		if(!properties) return;
		properties.toLowerCase().split(' ').each( function(property) {
			
			//if(ERDF.log.isTraceEnabled())
			//	ERDF.log.trace("Going for property " + property);

			var schema = ERDF.schemas.find( function(schema) {
				return false || ERDF.DELIMITERS.find( function(delimiter) {
					return property.startsWith(schema.prefix + delimiter);
				});
			});
			
			if(schema && object) {
				property = property.substring(
					schema.prefix.length+1, property.length);
				var triple = ERDF.registerTriple(
					new ERDF.Resource(subject),
					{prefix: schema.prefix, name: property},
					(objectType == ERDF.RESOURCE) ?
						new ERDF.Resource(object) :
						new ERDF.Literal(object));
						
				if(callback) callback(triple);
			}
		});
	},
	
	_parseTypeTriplesFrom: function(subjectType, subject, properties, callback) {
		
		if(!properties) return;
		properties.toLowerCase().split(' ').each( function(property) {
			
			//if(ERDF.log.isTraceEnabled())
			//	ERDF.log.trace("Going for property " + property);
				
			var schema = ERDF.schemas.find( function(schema) {
				return false || ERDF.DELIMITERS.find( function(delimiter) {
					return property.startsWith(ERDF.HYPHEN + schema.prefix + delimiter);
				});
			});
			
			if(schema && subject) {
				property = property.substring(schema.prefix.length+2, property.length);
				var triple = ERDF.registerTriple(
					(subjectType == ERDF.RESOURCE) ?
						new ERDF.Resource(subject) :
						new ERDF.Literal(subject),
					{prefix: 'rdf', name: 'type'},
					new ERDF.Resource(schema.namespace+property));
				if(callback) callback(triple);
			}
		});
	},
	
	/**
	 * Checks for ERDF profile declaration in head of document.
	 */
	_checkProfile: function() {

		// get profiles from head element.
		var heads = document.getElementsByTagNameNS(XMLNS.XHTML, 'head');
		var profiles = heads[0].getAttribute("profile");
		var found = false;

		// if erdf profile is contained.
		if(profiles && profiles.split(" ").member(XMLNS.ERDF)) {

			// pass check.
			//if(ERDF.log.isTraceEnabled())
			//	ERDF.log.trace("Found ERDF profile " + XMLNS.ERDF);
			return true;
			
		} else {
		
			// otherwise fail check.
			//if(ERDF.log.isFatalEnabled())
			//	ERDF.log.fatal("No ERDF profile found.");
			return false;
		}
	},
	
	__stripHashes: function(s) {
		return (s && s.substring(0, 1)=='#') ? s.substring(1, s.length) : s;
	},
	
	registerSchema: function(prefix, namespace) {
		
		// TODO check whether already registered, if so, complain.
		ERDF.schemas.push({
			prefix: prefix,
			namespace: namespace
		});
		
		//if(ERDF.log.isDebugEnabled())
		//	ERDF.log.debug("Prefix '"+prefix+"' for '"+namespace+"' registered.");
	},
	
	registerTriple: function(subject, predicate, object) {
		
		// if prefix is schema, this is a schema definition.
		if(predicate.prefix.toLowerCase() == 'schema')
			this.registerSchema(predicate.name, object.value);
			
		var triple = new ERDF.Triple(subject, predicate, object);
		ERDF.callback(triple);
		
		//if(ERDF.log.isInfoEnabled())
		//	ERDF.log.info(triple)
		
		// return the registered triple.
		return triple;
	},
	
	__enhanceObject: function() {
		
		/* Resource state querying methods */
		this.isResource = function() {
			return this.type == ERDF.RESOURCE };
		this.isLocal = function() {
			return this.isResource() && this.value.startsWith('#') };
		this.isCurrentDocument = function() {
			return this.isResource() && (this.value == '') };
		
		/* Resource getter methods.*/
		this.getId = function() {
			return this.isLocal() ? ERDF.__stripHashes(this.value) : false; };

		/* Liiteral state querying methods  */
		this.isLiteral = function() {
			return this.type == ERDF.LIITERAL };
	},
	
	serialize: function(literal) {
		
		if(!literal){
			return "";
		}else if(literal.constructor == String) {
			return literal;
		} else if(literal.constructor == Boolean) {
			return literal? 'true':'false';
		} else {
			return literal.toString();
		}
	}
};


ERDF.Triple = function(subject, predicate, object) {
	
	this.subject = subject;
	this.predicate = predicate;
	this.object = object;
	
	this.toString = function() {
		
		return "[ERDF.Triple] " +
			this.subject.toString() + ' ' +
			this.predicate.prefix + ':' + this.predicate.name + ' ' +
			this.object.toString();
		};
};

ERDF.Resource = function(uri) {
	
	this.type = ERDF.RESOURCE;
	this.value = uri;
	ERDF.__enhanceObject.apply(this);
	
	this.toString = function() {
		return '<' + this.value + '>';
	}
	
};

ERDF.Literal = function(literal) {
	
	this.type = ERDF.LITERAL;
	this.value = ERDF.serialize(literal);
	ERDF.__enhanceObject.apply(this);

	this.toString = function() {
		return '"' + this.value + '"';
	}
};/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/*
 * Save and triple generation behaviour. Use this area to configure
 * data management to your needs.
 */
var USE_ASYNCHRONOUS_REQUESTS =		true;
var DISCARD_UNUSED_TRIPLES =			true;
var PREFER_SPANS_OVER_DIVS =			true;
var PREFER_TITLE_OVER_TEXTNODE =		false;
var RESOURCE_ID_PREFIX =				'resource';

var SHOW_DEBUG_ALERTS_WHEN_SAVING =	false;
var SHOW_EXTENDED_DEBUG_INFORMATION =	false;

/*
 * Back end specific workarounds.
 */

var USE_ARESS_WORKAROUNDS =		true;

/*
 * Data management constants. Do not change these, as they are used
 * both internally and externally to communicate on events and to identify
 * command object actions in triple production and embedding rules.
 */

// Resource constants
var RESOURCE_CREATED =			0x01;
var RESOURCE_REMOVED =			0x02;
var RESOURCE_SAVED =				0x04;
var RESOURCE_RELOADED =			0x08;
var RESOURCE_SYNCHRONIZED = 		0x10;

// Triple constants
var TRIPLE_REMOVE =	0x01;
var TRIPLE_ADD =		0x02;
var TRIPLE_RELOAD =	0x04;
var TRIPLE_SAVE =		0x08;

var PROCESSDATA_REF = 'processdata';

// HTTP status code constants
//
//// 2xx
//const 200_OK =			'Ok';
//const 201_CREATED =		'Created';
//const 202_ACCEPTED =		'Accepted';
//const 204_NO_CONTENT =	'No Content';
//
//// 3xx
//const 301_MOVED_PERMANENTLY =	'Moved Permanently';
//const 302_MOVED_TEMPORARILY =	'Moved Temporarily';
//const 304_NOT_MODIFIED =		'Not Modified';
//
//// 4xx
//const 400_BAD_REQUEST =	'Bad Request';
//const 401_UNAUTHORIZED =	'Unauthorized';
//const 403_FORBIDDEN =		'Forbidden';
//const 404_NOT_FOUND =		'Not Found';
//const 409_CONFLICT =		'Conflict';
//
//// 5xx
//const 500_INTERNAL_SERVER_ERROR =		'Internal Server Error';
//const 501_NOT_IMPLEMENTED =			'Not Implemented';
//const 502_BAD_GATEWAY =				'Bad Gateway';
//const 503_SERVICE_UNAVAILABLE =		'Service Unavailable';
//
/**
 * The Data Management object. Use this one when interacting with page internal
 * data. Initialize data management by DataManager.init();
 * @class DataManager
 */
var DataManager = {
	
	/**
	 * The init method should be called once in the DataManagers lifetime.
	 * It causes the DataManager to initialize itself, the erdf parser, do all
	 * neccessary registrations and configurations, to run the parser and
	 * from then on deliver all resulting triples.
	 * No parameters needed are needed in a call to this method.
	 */
	init: function() {
		ERDF.init(DataManager._registerTriple);
		DataManager.__synclocal();
	},
	
	/**
	 * This triple array is meant to be the whole knowledge of the DataManager.
	 */
	_triples: [],
	
	/**
	 * This method is meant for callback from erdf parsing. It is not to be
	 * used in another way than to add triples to the triple store.
	 * @param {Object} triple the triple to add to the triple store.
	 */
	_registerTriple: function(triple) {
		DataManager._triples.push(triple)
	},
	
	/**
	 * The __synclocal method is for internal usage only.
	 * It performs synchronization with the local document, that is, the triple
	 * store is adjustet to the content of the document, which could have been
	 * changed by any other applications running on the same page.
	 */
	__synclocal: function() {
		DataManager._triples = [];
		ERDF.run();
	},
	
	/**
	 * Makes the shape passed into this method synchronize itself with the DOM.
	 * This method returns the shapes resource object for further manipulation.
	 * @param {Object} shape
	 */
	__synchronizeShape: function(shape) {

		var r = ResourceManager.getResource(shape.resourceId);
		var serialize = shape.serialize();

		// store all serialize values
		serialize.each( function(ser) {
			
			var resource = (ser.type == 'resource');
			var _triple = new ERDF.Triple(
				new ERDF.Resource(shape.resourceId),
				{prefix: ser.prefix, name: ser.name},
				resource ?
					new ERDF.Resource(ser.value) :
					new ERDF.Literal(ser.value)
			);
			DataManager.setObject(_triple);
		});
		
		return r;
	},

	__storeShape: function(shape) {
		
		// first synchronize the shape,
		var resource = DataManager.__synchronizeShape(shape);
		
		// then save the synchronized dom.
		resource.save();
	},
		
	__forceExistance: function(shape) {
		
		if(!$(shape.resourceId)) {
			
			if(!$$('.' + PROCESSDATA_REF)[0])
				DataManager.graft(XMLNS.XHTML,
					document.getElementsByTagNameNS(XMLNS.XHTML, 'body').item(0), ['div', {'class': PROCESSDATA_REF, 'style':'display:none;'}]);
				
			// object is literal
			DataManager.graft(XMLNS.XHTML,
				$$('.' + PROCESSDATA_REF)[0], [
				
				'div', {
                    'id': shape.resourceId,
                    //This should be done in a more dynamic way!!!!!
                    'class': (shape instanceof ORYX.Core.Canvas) ? "-oryx-canvas" : undefined
                }
			]);
			
		} else {
			var resource = $(shape.resourceId)
			var children = $A(resource.childNodes)
			children.each( function(child) {
				resource.removeChild(child);
			});
		};
	},
	
	__persistShape: function(shape) {

		// a shape serialization.
		var shapeData = shape.serialize();
		
		// initialize a triple array and construct a shape resource
		// to be used in triple generation.
		var triplesArray = [];
		var shapeResource = new ERDF.Resource(shape.resourceId);

		// remove all triples for this particular shape's resource
		DataManager.removeTriples( DataManager.query(
			shapeResource, undefined, undefined));

		// for each data set in the shape's serialization
		shapeData.each( function(data) {

			// construct a triple's value
			var value = (data.type == 'resource') ?
				new ERDF.Resource(data.value) :
				new ERDF.Literal(data.value);

			// construct triple and add it to the DOM.
			DataManager.addTriple( new ERDF.Triple(
				shapeResource,
				{prefix: data.prefix, name: data.name},
				value
			));
		});
	},
	
	__persistDOM: function(facade) {

		// getChildShapes gets all shapes (nodes AND edges), deep flag
		// makes it return a flattened child hierarchy.
		
		var canvas = facade.getCanvas();
		var shapes = canvas.getChildShapes(true);
		var result = '';
		
		// persist all shapes.
		shapes.each( function(shape) {
			DataManager.__forceExistance(shape);
		});
		//DataManager.__synclocal();
		
		DataManager.__renderCanvas(facade);
		result += DataManager.serialize(
				$(ERDF.__stripHashes(facade.getCanvas().resourceId)), true);
				
		shapes.each( function(shape) {
			
			DataManager.__persistShape(shape);
			result += DataManager.serialize(
				$(ERDF.__stripHashes(shape.resourceId)), true);
		});
		
		//result += DataManager.__renderCanvas(facade);
		
		return result;
	},

	__renderCanvas: function(facade) {

		var canvas = facade.getCanvas();
		var stencilSets = facade.getStencilSets();
		var shapes = canvas.getChildShapes(true);
		
		DataManager.__forceExistance(canvas);
		
		DataManager.__persistShape(canvas);
		
		var shapeResource = new ERDF.Resource(canvas.resourceId);

		// remove all triples for this particular shape's resource
		DataManager.removeTriples( DataManager.query(
			shapeResource, undefined, undefined));

		DataManager.addTriple( new ERDF.Triple(
			shapeResource,
			{prefix: "oryx", name: "mode"},
			new ERDF.Literal("writable")
		));

		DataManager.addTriple( new ERDF.Triple(
			shapeResource,
			{prefix: "oryx", name: "mode"},
			new ERDF.Literal("fullscreen")
		));

		stencilSets.values().each(function(stencilset) {
			DataManager.addTriple( new ERDF.Triple(
				shapeResource,
				{prefix: "oryx", name: "stencilset"},
				new ERDF.Resource(stencilset.source().replace(/&/g, "%26"))
			));
			
			DataManager.addTriple( new ERDF.Triple(
				shapeResource,
				{prefix: "oryx", name: "ssnamespace"},
				new ERDF.Resource(stencilset.namespace())
			));
			
			stencilset.extensions().keys().each(function(extension) {
				DataManager.addTriple( new ERDF.Triple(
					shapeResource,
					{prefix: "oryx", name: "ssextension"},
					new ERDF.Literal(extension)
				));
			});
		});
						
		shapes.each(function(shape) {
			DataManager.addTriple( new ERDF.Triple(
				shapeResource,
				{prefix: "oryx", name: "render"},
				new ERDF.Resource("#" + shape.resourceId)
			));
		});
	},

	__counter: 0,
	__provideId: function() {
		
		while($(RESOURCE_ID_PREFIX+DataManager.__counter))
			DataManager.__counter++;
			
		return RESOURCE_ID_PREFIX+DataManager.__counter;
	},
		
	serializeDOM: function(facade) {
		
		return DataManager.__persistDOM(facade);
	},
	
	syncGlobal: function(facade) {
		
		return DataManager.__syncglobal(facade);
	},
	
	/**
	 * This method is used to synchronize local DOM with remote resources.
	 * Local changes are commited to the server, and remote changes are
	 * performed to the local document.
	 * @param {Object} facade The facade of the editor that holds certain
	 * resource representations as shapes.
	 */
	__syncglobal: function(facade) {

		// getChildShapes gets all shapes (nodes AND edges), deep flag
		// makes it return a flattened child hierarchy.
		
		var canvas = facade.getCanvas();
		var shapes = canvas.getChildShapes(true);

		// create dummy resource representations in the dom
		// for all shapes that were newly created.

		shapes.select( function(shape) {

			// select shapes without resource id.

			return !($(shape.resourceId));

		}).each( function(shape) {

			// create new resources for them.
			if(USE_ARESS_WORKAROUNDS) {
				
				/*
				 * This is a workaround due to a bug in aress. Resources are
				 * ignoring changes to raziel:type property once they are
				 * created. As long as this is not fixed, the resource is now
				 * being created using a randomly guessed id, this temporary id
				 * is then used in references and the appropriate div is being
				 * populated with properties.
				 * 
				 * AFTER THIS PHASE THE DATA IS INCONSISTENT AS REFERENCES POINT
				 * TO IDS THAT ARE UNKNOWN TO THE BACK END.
				 * 
				 * After the resource is actually created in aress, it gets an id
				 * that is persistent. All shapes are then being populated with the
				 * correct id references and stored on the server.
				 * 
				 * AFTER THE SAVE PROCESS HAS RETURNED, THE DATA IS CONSISTENT
				 * REGARDING THE ID REFERENCES AGAIN.
				 */
				
				var razielType = shape.properties['raziel-type'];
				
				var div = '<div xmlns="http://www.w3.org/1999/xhtml">' +
					'<span class="raziel-type">'+razielType+'</span></div>';

				var r = ResourceManager.__createResource(div);
				shape.resourceId = r.id();
				
			} else {
		
				var r = ResourceManager.__createResource();
				shape.resourceId = r.id();
			}

		});

		shapes.each( function(shape) {
			
			// store all shapes.
			DataManager.__storeShape(shape);
		});
	},
	
	/**
	 * This method serializes a single div into a string that satisfies the
	 * client/server communication protocol. It ingnores all elements that have
	 * an attribute named class that includes 'transient'.
	 * @param {Object} node the element to serialize.
	 * @param {Object} preserveNamespace whether to preserve the parent's
	 *                 namespace. If you are not sure about namespaces, provide
	 *                 just the element to be serialized.
	 */
	serialize: function(node, preserveNamespace) {

		if (node.nodeType == node.ELEMENT_NODE) {
			// serialize an element node.
			
			var children = $A(node.childNodes);
			var attributes = $A(node.attributes);
			var clazz = new String(node.getAttribute('class'));
			var ignore = clazz.split(' ').member('transient');

			// ignore transients.

			if(ignore)
				return '';

			// start serialization.
			
			var result = '<' + node.nodeName;
			
			// preserve namespace?
			if(!preserveNamespace) 
				result += ' xmlns="' + (node.namespaceURI ? node.namespaceURI : XMLNS.XHTML) + '" xmlns:oryx="http://oryx-editor.org"';
			
			// add all attributes.
			
			attributes.each(function(attribute) {
				result += ' ' + attribute.nodeName + '="' +
					attribute.nodeValue + '"';});
			
			// close if no children.
			
			if(children.length == 0)
				result += '/>';
				
			else {
				
				// serialize all children.
				
				result += '>';
				children.each(function(_node) {
					result += DataManager.serialize(_node, true)});
				result += '</' + node.nodeName + '>'
			}

			return result;
			
		} else if (node.nodeType == node.TEXT_NODE) {
			
			// serialize a text node.
			return  node.nodeValue;
		}
		
		//TODO serialize cdata areas also.
		//TODO work on namespace awareness.
	},

	addTriple: function(triple) {

		// assert the subject is a resource
		
		if(!triple.subject.type == ERDF.LITERAL)
			throw 'Cannot add the triple ' + triple.toString() +
				' because the subject is not a resource.'
		
		// get the element which represents this triple's subject.
		var elementId = ERDF.__stripHashes(triple.subject.value);
		var element = $(elementId);
				
		// assert the subject is inside this document.
		if(!element)
			throw 'Cannot add the triple ' + triple.toString() +
				' because the subject "'+elementId+'" is not in the document.';

		if(triple.object.type == ERDF.LITERAL)

			// object is literal
			DataManager.graft(XMLNS.XHTML, element, [
				'span', {'class': (triple.predicate.prefix + "-" +
					triple.predicate.name)}, triple.object.value.escapeHTML()
			]);
			
		else {

			// object is resource
			DataManager.graft(XMLNS.XHTML, element, [
				'a', {'rel': (triple.predicate.prefix + "-" +
					triple.predicate.name), 'href': triple.object.value}
			]);
			
		}

		return true;
	},
	
	removeTriples: function(triples) {

		// alert('Removing ' +triples.length+' triples.');

		// from all the triples select those ...
		var removed = triples.select(

			function(triple) {
				
				// TODO remove also from triple store.
				// ... that were actually removed.
				return DataManager.__removeTriple(triple);
			});
		
		// sync and return removed triples.
		// DataManager.__synclocal();
		return removed;
	},
	
	removeTriple: function(triple) {
		
		// remember whether the triple was actually removed.
		var result = DataManager.__removeTriple(triple);

		// sync and return removed triples.
		// DataManager.__synclocal();
		return result;
	},

	__removeTriple: function(triple) {
		
		// assert the subject is a resource
		if(!triple.subject.type == ERDF.LITERAL)
		
			throw 'Cannot remove the triple ' + triple.toString() +
				' because the subject is not a resource.';

		// get the element which represents this triple's subject.
		var elementId = ERDF.__stripHashes(triple.subject.value);
		var element = $(elementId);

		// assert the subject is inside this document.
		if(!element)
		
			throw 'Cannot remove the triple ' + triple.toString() +
				' because the subject is not in the document.';
	  
		if(triple.object.type == ERDF.LITERAL) {
	  
  			// continue searching actively for the triple.
			var result = DataManager.__removeTripleRecursively(triple, element);
			return result;
		}
	},

	__removeTripleRecursively: function(triple, continueFrom) {  

		// return when this node is not an element node.
		if(continueFrom.nodeType != continueFrom.ELEMENT_NODE)
			return false;
		
		var classes = new String(continueFrom.getAttribute('class'));
		var children = $A(continueFrom.childNodes);
		
		if(classes.include(triple.predicate.prefix + '-' + triple.predicate.name)) {
		  
			var content = continueFrom.textContent;
			if(	(triple.object.type == ERDF.LITERAL) &&
				(triple.object.value == content))

				continueFrom.parentNode.removeChild(continueFrom);
			
			return true;
		  
		} else {
		 
			children.each(function(_node) {
			DataManager.__removeTripleRecursively(triple, _node)});
			return false;
		}

	},

	/**
	 * graft() function
	 * Originally by Sean M. Burke from interglacial.com, altered for usage with
	 * SVG and namespace (xmlns) support. Be sure you understand xmlns before
	 * using this funtion, as it creates all grafted elements in the xmlns
	 * provided by you and all element's attribures in default xmlns. If you
	 * need to graft elements in a certain xmlns and wish to assign attributes
	 * in both that and another xmlns, you will need to do stepwise grafting,
	 * adding non-default attributes yourself or you'll have to enhance this
	 * function. Latter, I would appreciate: martin�apfelfabrik.de
	 * @param {Object} namespace The namespace in which
	 * 					elements should be grafted.
	 * @param {Object} parent The element that should contain the grafted
	 * 					structure after the function returned.
	 * @param {Object} t the crafting structure.
	 * @param {Object} doc the document in which grafting is performed.
	 */
	graft: function(namespace, parent, t, doc) {
		
	    doc = (doc || (parent && parent.ownerDocument) || document);
	    var e;
	    if(t === undefined) {
	        echo( "Can't graft an undefined value");
	    } else if(t.constructor == String) {
	        e = doc.createTextNode( t );
	    } else {
	        for(var i = 0; i < t.length; i++) {
	            if( i === 0 && t[i].constructor == String ) {
					var snared = t[i].match( /^([a-z][a-z0-9]*)\.([^\s\.]+)$/i );
	                if( snared ) {
	                    e = doc.createElementNS(namespace, snared[1]);
	                    e.setAttributeNS(null, 'class', snared[2] );
	                    continue;
	                }
	                snared = t[i].match( /^([a-z][a-z0-9]*)$/i );
	                if( snared ) {
	                    e = doc.createElementNS(namespace, snared[1]);  // but no class
	                    continue;
	                }
	
	                // Otherwise:
	                e = doc.createElementNS(namespace, "span");
	                e.setAttribute(null, "class", "namelessFromLOL" );
	            }
	
	            if( t[i] === undefined ) {
	                echo("Can't graft an undefined value in a list!");
	            } else if( t[i].constructor == String || t[i].constructor == Array) {
	                this.graft(namespace, e, t[i], doc );
	            } else if(  t[i].constructor == Number ) {
	                this.graft(namespace, e, t[i].toString(), doc );
	            } else if(  t[i].constructor == Object ) {
	                // hash's properties => element's attributes
	                for(var k in t[i]) { e.setAttributeNS(null, k, t[i][k] ); }
	            } else if(  t[i].constructor == Boolean ) {
	                this.graft(namespace, e, t[i] ? 'true' : 'false', doc );
				} else
					throw "Object " + t[i] + " is inscrutable as an graft arglet.";
	        }
	    }
		
		if(parent) parent.appendChild(e);
	
	    return Element.extend(e); // return the topmost created node
	},

	setObject: function(triple) {

		/**
		 * Erwartungen von Arvid an diese Funktion:
		 * - Es existiert genau ein triple mit dem Subjekt und Praedikat,
		 *   das uebergeben wurde, und dieses haelt uebergebenes Objekt.
		 */

		var triples = DataManager.query(
			triple.subject,
			triple.predicate,
			undefined
		);
		
		DataManager.removeTriples(triples);

		DataManager.addTriple(triple);

		return true;
	},
	
	query: function(subject, predicate, object) {

		/*
		 * Typical triple.
		 *	{value: subject, type: subjectType},
		 *	{prefix: schema.prefix, name: property},
		 *	{value: object, type: objectType});
		 */	
		 	
		return DataManager._triples.select(function(triple) {
			
			var select = ((subject) ?
				(triple.subject.type == subject.type) &&
				(triple.subject.value == subject.value) : true);
			if(predicate) {
				select = select && ((predicate.prefix) ?
					(triple.predicate.prefix == predicate.prefix) : true);
				select = select && ((predicate.name) ?
					(triple.predicate.name == predicate.name) : true);
			}
			select = select && ((object) ?
				(triple.object.type == object.type) &&
				(triple.object.value == object.value) : true);
			return select;
		});
	}
}

Kickstart.register(DataManager.init);

function assert(expr, m) { if(!expr) throw m; };

function DMCommand(action, triple) {
	
	// store action and triple.
	this.action = action;
	this.triple = triple;
	
	this.toString = function() {
		return 'Command('+action+', '+triple+')';
	};
}

function DMCommandHandler(nextHandler) {
	
	/**
	 * Private method to set the next handler in the Chain of Responsibility
	 * (see http://en.wikipedia.org/wiki/Chain-of-responsibility_pattern for
	 * details).
	 * @param {DMCommandHandler} handler The handler that is next in the chain.
	 */
	this.__setNext = function(handler) {
		var _next = this.__next;
		this.__next = nextHandler;
		return _next ? _next : true;
	};
	this.__setNext(nextHandler);

	/**
	 * Invokes the next handler. If there is no next handler, this method
	 * returns false, otherwise it forwards the result of the handling.
	 * @param {Object} command The command object to be processed.
	 */
	this.__invokeNext = function(command) {
		return this.__next ? this.__next.handle(command) : false;
	};
	
	/**
	 * Handles a command. The abstract method process() is called with the
	 * command object that has been passed. If the process method catches the
	 * command (returns true on completion), the handle() method returns true.
	 * If the process() method doesn't catch the command, the next handler will
	 * be invoked.
	 * @param {Object} command The command object to be processed.
	 */
	this.handle = function(command) {
		return this.process(command) ? true : this.__invokeNext(command);
	}
	
	/**
	 * Empty process() method returning false. If javascript knew abstract
	 * class members, this would be one.
	 * @param {Object} command The command object to process.
	 */
	this.process = function(command) { return false; };
};

/**
 * This Handler manages the addition and the removal of meta elements in the
 * head of the document.
 * @param {DMCommandHandler} next The handler that is next in the chain.
 */
function MetaTagHandler(next) {
	
	DMCommandHandler.apply(this, [next]);
	this.process = function(command) {
		
		with(command.triple) {
			
			/* assert prerequisites */
			if( !(
				(subject instanceof ERDF.Resource) &&
				(subject.isCurrentDocument()) &&
				(object instanceof ERDF.Literal)
			))	return false;
		}
		
	};
};

var chain =	new MetaTagHandler();
var command = new DMCommand(TRIPLE_ADD, new ERDF.Triple(
	new ERDF.Resource(''),
	'rdf:tool',
	new ERDF.Literal('')
));

/*
if(chain.handle(command))
	alert('Handled!');
*/

ResourceManager = {
	
	__corrupt: false,
	__latelyCreatedResource: undefined,
	__listeners: $H(),
	__token: 1,
	
	addListener: function(listener, mask) {

		if(!(listener instanceof Function))
			throw 'Resource event listener is not a function!';
		if(!(mask))
			throw 'Invalid mask for resource event listener registration.';

		// construct controller and token.
		var controller = {listener: listener, mask: mask};
		var token = ResourceManager.__token++;
		
		// add new listener.
		ResourceManager.__listeners[token] = controller;
		
		// return the token generated.
		return token;
	},
	
	removeListener: function(token) {
		
		// remove the listener with the token and return it.
		return ResourceManager.__listners.remove(token);
	},
	
	__Event: function(action, resourceId) {
		this.action = action;
		this.resourceId = resourceId;
	},
	
	__dispatchEvent: function(event) {
		
		// get all listeners. for each listener, ...
		ResourceManager.__listeners.values().each(function(controller) {
			
			// .. if listener subscribed to this type of event ...
			if(event.action & controller.mask)
				return controller.listener(event);
		});
	},

	getResource: function(id) {

		// get all possible resources for this.
		id = ERDF.__stripHashes(id);
		var resources = DataManager.query(
			new ERDF.Resource('#'+id),
			{prefix: 'raziel', name: 'entry'},
			undefined
		);

		// check for consistency.
		if((resources.length == 1) && (resources[0].object.isResource())) {
			var entryUrl = resources[0].object.value;
			return new ResourceManager.__Resource(id, entryUrl);
		}

		// else throw an error message.
		throw ('Resource with id ' +id+ ' not recognized as such. ' +
			((resources.length > 1) ?
				' There is more than one raziel:entry URL.' :
				' There is no raziel:entry URL.'));

		return false;
	},

	__createResource: function(alternativeDiv) {
		
		var collectionUrls = DataManager.query(
			new ERDF.Resource(''),
			// TODO This will become raziel:collection in near future.
			{prefix: 'raziel', name: 'collection'},
			undefined
		);

		// check for consistency.
		
		if(	(collectionUrls.length == 1) &&
			(collectionUrls[0].object.isResource())) {

			// get the collection url.
			
			var collectionUrl = collectionUrls[0].object.value;
			var resource = undefined;
			
			// if there is an old id, serialize the dummy div from there,
			// otherwise create a dummy div on the fly.
			
			var serialization = alternativeDiv? alternativeDiv : 
					'<div xmlns="http://www.w3.org/1999/xhtml"></div>';
					
			ResourceManager.__request(
				'POST', collectionUrl, serialization,

				// on success
				function() {
					
					// get div and id that have been generated by the server.
					
					var response = (this.responseXML);
					var div = response.childNodes[0];
					var id = div.getAttribute('id');
					
					// store div in DOM
					if(!$$('.' + PROCESSDATA_REF)[0])
						DataManager.graft(XMLNS.XHTML,
							document.getElementsByTagNameNS(XMLNS.XHTML, 'body').item(0), ['div', {'class': PROCESSDATA_REF, 'style':'display:none;'}]);
				
					$$('.' + PROCESSDATA_REF)[0].appendChild(div.cloneNode(true));

					// parse local erdf data once more.
					
					DataManager.__synclocal();
					
					// get new resource object.

					resource = new ResourceManager.getResource(id);

					// set up an action informing of the creation.
					
					ResourceManager.__resourceActionSucceeded(
						this, RESOURCE_CREATED, undefined);
				},

				function() { ResourceManager.__resourceActionFailed(
					this, RESOURCE_CREATED, undefined);},
				false
			);
			
			return resource;
		}
		
		// else
		throw 'Could not create resource! raziel:collection URL is missing!';
		return false;

	},
	
	__Resource: function(id, url) {
		
		this.__id = id;
		this.__url = url;
		
		/*
		 * Process URL is no longer needed to refer to the shape element on the
		 * canvas. AReSS uses the id's to gather information on fireing
		 * behaviour now.
		 */
		
//		// find the process url.		
//		var processUrl = undefined;
//		
//		var urls = DataManager.query(
//			new ERDF.Resource('#'+this.__id),
//			{prefix: 'raziel', name: 'process'},
//			undefined
//		);
//		
//		if(urls.length == 0) { throw 'The resource with the id ' +id+ ' has no process url.'};
//		
//		urls.each( function(triple) {
//			
//			// if there are more urls, use the last one.
//			processUrl = triple.object.value;
//		});
//		
//		this.__processUrl = processUrl;
//
//		// convenience function for getting the process url.
//		this.processUrl = function() {
//			return this.__processUrl;
//		}


		// convenience finction for getting the id.
		this.id = function() {
			return this.__id;
		}

		// convenience finction for getting the entry url.
		this.url = function() {
			return this.__url;
		}
		
		this.reload = function() {
			var _url = this.__url;
			var _id = this.__id;
			ResourceManager.__request(
				'GET', _url, null,
				function() { ResourceManager.__resourceActionSucceeded(
					this, RESOURCE_RELOADED, _id); },
				function() { ResourceManager.__resourceActionFailed(
					this, RESURCE_RELOADED, _id); },
				USE_ASYNCHRONOUS_REQUESTS
			);
		};
		
		this.save = function(synchronize) {
			var _url = this.__url;
			var _id = this.__id;
			data = DataManager.serialize($(_id));
			ResourceManager.__request(
				'PUT', _url, data,
				function() { ResourceManager.__resourceActionSucceeded(
					this, synchronize ? RESOURCE_SAVED | RESOURCE_SYNCHRONIZED : RESOURCE_SAVED, _id); },
				function() { ResourceManager.__resourceActionFailed(
					this, synchronize ? RESOURCE_SAVED | RESOURCE_SYNCHRONIZED : RESOURCE.SAVED, _id); },
				USE_ASYNCHRONOUS_REQUESTS
			);
		};
		
		this.remove = function() {
			var _url = this.__url;
			var _id = this.__id;
			ResourceManager.__request(
				'DELETE', _url, null,
				function() { ResourceManager.__resourceActionSucceeded(
					this, RESOURCE_REMOVED, _id); },
				function() { ResourceManager.__resourceActionFailed(
					this, RESOURCE_REMOVED, _id);},
				USE_ASYNCHRONOUS_REQUESTS
			);
		};
	},

	request: function(url, requestOptions) {

		var options = {
			method:       'get',
			asynchronous: true,
			parameters:   {}
		};

		Object.extend(options, requestOptions || {});
 		
		var params = Hash.toQueryString(options.parameters);
		if (params) 
			url += (url.include('?') ? '&' : '?') + params;
   
		return ResourceManager.__request(
			options.method, 
			url, 
			options.data, 
			(options.onSuccess instanceof Function ? function() { options.onSuccess(this); } : undefined ), 
			(options.onFailure instanceof Function ? function() { options.onFailure(this); } : undefined ), 
			options.asynchronous && USE_ASYNCHRONOUS_REQUESTS,
			options.headers);
	},
	
	__request: function(method, url, data, success, error, async, headers) {
		
		// get a request object
		var httpRequest = Try.these(

			/* do the Mozilla/Safari/Opera stuff */
			function() { return new XMLHttpRequest(); },
			
			/* do the IE stuff */
			function() { return new ActiveXObject("Msxml2.XMLHTTP"); },
			function() { return new ActiveXObject("Microsoft.XMLHTTP") }
		);

		// if there is no request object ...
        if (!httpRequest) {
			if(!this.__corrupt)
				throw 'This browser does not provide any AJAX functionality. You will not be able to use the software provided with the page you are viewing. Please consider installing appropriate extensions.';
			this.__corrupt = true;
			return false;
        }
		
		if(success instanceof Function)
			httpRequest.onload = success;
		if(error instanceof Function) {
			httpRequest.onerror = error;
		}
		
		var h = $H(headers)
		h.keys().each(function(key) {
			
			httpRequest.setRequestHeader(key, h[key]);
		}); 
		
		try {

			if(SHOW_DEBUG_ALERTS_WHEN_SAVING)
			
				alert(method + ' ' + url + '\n' +
					SHOW_EXTENDED_DEBUG_INFORMATION ? data : '');

			// TODO Remove synchronous calls to the server as soon as xenodot
			// handles asynchronous requests without failure.
	        httpRequest.open(method, url, !async?false:true);
	        httpRequest.send(data);
			
		} catch(e) {
			return false;
		}
		return true;
    },

	__resourceActionSucceeded: function(transport, action, id) {
		
		var status = transport.status;
		var response = transport.responseText;
		
		if(SHOW_DEBUG_ALERTS_WHEN_SAVING)

			alert(status + ' ' + url + '\n' +
				SHOW_EXTENDED_DEBUG_INFORMATION ? data : '');

		// if the status code is not in 2xx, throw an error.
		if(status >= 300)
			throw 'The server responded with an error: ' + status + '\n' + (SHOW_EXTENDED_DEBUG_INFORMATION ? + data : 'If you need additional information here, including the data sent by the server, consider setting SHOW_EXTENDED_DEBUG_INFORMATION to true.');

		switch(action) {
			
			case RESOURCE_REMOVED:

				// get div and id
				var response = (transport.responseXML);
				var div = response.childNodes[0];
				var id = div.getAttribute('id');
				
				// remove the resource from DOM
				var localDiv = document.getElementById(id);
				localDiv.parentNode.removeChild(localDiv);
				break;

			case RESOURCE_CREATED:

				// nothing remains to be done.
				break;
	
			case RESOURCE_SAVED | RESOURCE_SYNCHRONIZED:

				DataManager.__synclocal();

			case RESOURCE_SAVED:

				// nothing remains to be done.
				break;

			case RESOURCE_RELOADED:
			
				// get div and id
				var response = (transport.responseXML);
				var div = response.childNodes[0];
				var id = div.getAttribute('id');
				
				// remove the local resource representation from DOM
				var localDiv = document.getElementById(id)
				localDiv.parentNode.removeChild(localDiv);
				
				// store div in DOM
				if(!$$(PROCESSDATA_REF)[0])
					DataManager.graft(XMLNS.XHTML,
						document.getElementsByTagNameNS(XMLNS.XHTML, 'body').item(0), ['div', {'class': PROCESSDATA_REF, 'style':'display:none;'}]);
				
				$$(PROCESSDATA_REF)[0].appendChild(div.cloneNode(true));
				DataManager.__synclocal();
				break;

			default:
				DataManager.__synclocal();

		}
		 
		// dispatch to all listeners ...
		ResourceManager.__dispatchEvent(

			// ... an event describing the change that happened here.
			new ResourceManager.__Event(action, id)
		);
	},

	__resourceActionFailed: function(transport, action, id) {
		throw "Fatal: Resource action failed. There is something horribly " +
			"wrong with either the server, the transport protocol or your " +
			"online status. Sure you're online?";
	}
}/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * The super class for all classes in ORYX. Adds some OOP feeling to javascript.
 * See article "Object Oriented Super Class Method Calling with JavaScript" on
 * http://truecode.blogspot.com/2006/08/object-oriented-super-class-method.html
 * for a documentation on this. Fairly good article that points out errors in
 * Douglas Crockford's inheritance and super method calling approach.
 * Worth reading.
 * @class Clazz
 */
var Clazz = function() {};

/**
 * Empty constructor.
 * @methodOf Clazz.prototype
 */
Clazz.prototype.construct = function() {};

/**
 * Can be used to build up inheritances of classes.
 * @example
 * var MyClass = Clazz.extend({
 *   construct: function(myParam){
 *     // Do sth.
 *   }
 * });
 * var MySubClass = MyClass.extend({
 *   construct: function(myParam){
 *     // Use this to call constructor of super class
 *     arguments.callee.$.construct.apply(this, arguments);
 *     // Do sth.
 *   }
 * });
 * @param {Object} def The definition of the new class.
 */
Clazz.extend = function(def) {
    var classDef = function() {
        if (arguments[0] !== Clazz) { this.construct.apply(this, arguments); }
    };
    
    var proto = new this(Clazz);
    var superClass = this.prototype;
    
    for (var n in def) {
        var item = def[n];                        
        if (item instanceof Function) item.$ = superClass;
        proto[n] = item;
    }

    classDef.prototype = proto;
    
    //Give this new class the same static extend method    
    classDef.extend = this.extend;        
    return classDef;
};/**
 * Copyright (c) 2010
 * Signavio GmbH
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/
if(!ORYX) var ORYX = {};

if(!ORYX.CONFIG) ORYX.CONFIG = {};

/**
 * This file contains URI constants that may be used for XMLHTTPRequests.
 */

ORYX.CONFIG.ROOT_PATH =					"../editor/"; //TODO: Remove last slash!!
ORYX.CONFIG.EXPLORER_PATH =				"../explorer";
ORYX.CONFIG.LIBS_PATH =					"../libs";

/**
 * Regular Config
 */	
ORYX.CONFIG.SERVER_HANDLER_ROOT = 		"../service";
ORYX.CONFIG.SERVER_EDITOR_HANDLER =		ORYX.CONFIG.SERVER_HANDLER_ROOT + "/editor";
ORYX.CONFIG.SERVER_MODEL_HANDLER =		ORYX.CONFIG.SERVER_HANDLER_ROOT + "/model";
ORYX.CONFIG.STENCILSET_HANDLER = 		ORYX.CONFIG.SERVER_HANDLER_ROOT + "/editor_stencilset?embedsvg=true&url=true&namespace=";    
ORYX.CONFIG.STENCIL_SETS_URL = 			ORYX.CONFIG.SERVER_HANDLER_ROOT + "/editor_stencilset";

ORYX.CONFIG.PLUGINS_CONFIG =			ORYX.CONFIG.SERVER_HANDLER_ROOT + "/editor/plugins";
ORYX.CONFIG.SYNTAXCHECKER_URL =			ORYX.CONFIG.SERVER_HANDLER_ROOT + "/syntaxchecker";
ORYX.CONFIG.DEPLOY_URL = 				ORYX.CONFIG.SERVER_HANDLER_ROOT + "/model/deploy";
ORYX.CONFIG.MODEL_LIST_URL = 			ORYX.CONFIG.SERVER_HANDLER_ROOT + "/models";

ORYX.CONFIG.SS_EXTENSIONS_FOLDER =		ORYX.CONFIG.ROOT_PATH + "stencilsets/extensions/";
ORYX.CONFIG.SS_EXTENSIONS_CONFIG =		ORYX.CONFIG.SERVER_HANDLER_ROOT + "/editor_ssextensions";	
ORYX.CONFIG.ORYX_NEW_URL =				"/new";	
ORYX.CONFIG.BPMN_LAYOUTER =				ORYX.CONFIG.ROOT_PATH + "bpmnlayouter";/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/
if(!ORYX) var ORYX = {};

if(!ORYX.CONFIG) ORYX.CONFIG = {};

/**
 * Signavio specific variables
 */
ORYX.CONFIG.BACKEND_SWITCH 		= 		true;
ORYX.CONFIG.PANEL_LEFT_WIDTH 	= 		250;
ORYX.CONFIG.PANEL_RIGHT_COLLAPSED 	= 	true;
ORYX.CONFIG.PANEL_RIGHT_WIDTH	= 		300;
ORYX.CONFIG.APPNAME = 					'Activiti BPM suite';
ORYX.CONFIG.WEB_URL = 					"../";

ORYX.CONFIG.BLANK_IMAGE = ORYX.CONFIG.LIBS_PATH + '/ext-2.0.2/resources/images/default/s.gif';


/* Show grid line while dragging */
ORYX.CONFIG.SHOW_GRIDLINE = 			true;

	/* Editor-Mode */
ORYX.CONFIG.MODE_READONLY =				"readonly";
ORYX.CONFIG.MODE_FULLSCREEN =			"fullscreen";
ORYX.CONFIG.WINDOW_HEIGHT = 			400;	
ORYX.CONFIG.PREVENT_LOADINGMASK_AT_READY = false;

	/* Plugins */
ORYX.CONFIG.PLUGINS_ENABLED =			true;
ORYX.CONFIG.PLUGINS_FOLDER =			"Plugins/";

ORYX.CONFIG.BPMN20_SCHEMA_VALIDATION_ON = true;

	/* Namespaces */
ORYX.CONFIG.NAMESPACE_ORYX =			"http://www.b3mn.org/oryx";
ORYX.CONFIG.NAMESPACE_SVG =				"http://www.w3.org/2000/svg";

	/* UI */
ORYX.CONFIG.CANVAS_WIDTH =				1485; 
ORYX.CONFIG.CANVAS_HEIGHT =				1050;
ORYX.CONFIG.CANVAS_RESIZE_INTERVAL =	300;
ORYX.CONFIG.SELECTED_AREA_PADDING =		4;
ORYX.CONFIG.CANVAS_BACKGROUND_COLOR =	"none";
ORYX.CONFIG.GRID_DISTANCE =				30;
ORYX.CONFIG.GRID_ENABLED =				true;
ORYX.CONFIG.ZOOM_OFFSET =				0.1;
ORYX.CONFIG.DEFAULT_SHAPE_MARGIN =		60;
ORYX.CONFIG.SCALERS_SIZE =				7;
ORYX.CONFIG.MINIMUM_SIZE =				20;
ORYX.CONFIG.MAXIMUM_SIZE =				10000;
ORYX.CONFIG.OFFSET_MAGNET =				15;
ORYX.CONFIG.OFFSET_EDGE_LABEL_TOP =		8;
ORYX.CONFIG.OFFSET_EDGE_LABEL_BOTTOM =	8;
ORYX.CONFIG.OFFSET_EDGE_BOUNDS =		5;
ORYX.CONFIG.COPY_MOVE_OFFSET =			30;
	
ORYX.CONFIG.BORDER_OFFSET =				14;

ORYX.CONFIG.MAX_NUM_SHAPES_NO_GROUP	=	12;

ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER = 30;
ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET = 45;

	/* Shape-Menu Align */
ORYX.CONFIG.SHAPEMENU_RIGHT =			"Oryx_Right";
ORYX.CONFIG.SHAPEMENU_BOTTOM =			"Oryx_Bottom";
ORYX.CONFIG.SHAPEMENU_LEFT =			"Oryx_Left";
ORYX.CONFIG.SHAPEMENU_TOP =				"Oryx_Top";


	/* Morph-Menu Item */
ORYX.CONFIG.MORPHITEM_DISABLED =		"Oryx_MorphItem_disabled";

	/* Property type names */
ORYX.CONFIG.TYPE_STRING =				"string";
ORYX.CONFIG.TYPE_BOOLEAN =				"boolean";
ORYX.CONFIG.TYPE_INTEGER =				"integer";
ORYX.CONFIG.TYPE_FLOAT =				"float";
ORYX.CONFIG.TYPE_COLOR =				"color";
ORYX.CONFIG.TYPE_DATE =					"date";
ORYX.CONFIG.TYPE_CHOICE =				"choice";
ORYX.CONFIG.TYPE_URL =					"url";
ORYX.CONFIG.TYPE_DIAGRAM_LINK =			"diagramlink";
ORYX.CONFIG.TYPE_COMPLEX =				"complex";
ORYX.CONFIG.TYPE_MULTIPLECOMPLEX =		"multiplecomplex";
ORYX.CONFIG.TYPE_TEXT =					"text";
ORYX.CONFIG.TYPE_MODEL_LINK =			"modellink";
ORYX.CONFIG.TYPE_LISTENER =				"listener";
ORYX.CONFIG.TYPE_EPC_FREQ = 			"epcfrequency";
ORYX.CONFIG.TYPE_GLOSSARY_LINK =		"glossarylink";

	
	/* Vertical line distance of multiline labels */
ORYX.CONFIG.LABEL_LINE_DISTANCE =		2;
ORYX.CONFIG.LABEL_DEFAULT_LINE_HEIGHT =	12;

	/* Open Morph Menu with Hover */
ORYX.CONFIG.ENABLE_MORPHMENU_BY_HOVER = false;


	/* Editor constants come here */
ORYX.CONFIG.EDITOR_ALIGN_BOTTOM =		0x01;
ORYX.CONFIG.EDITOR_ALIGN_MIDDLE =		0x02;
ORYX.CONFIG.EDITOR_ALIGN_TOP =			0x04;
ORYX.CONFIG.EDITOR_ALIGN_LEFT =			0x08;
ORYX.CONFIG.EDITOR_ALIGN_CENTER =		0x10;
ORYX.CONFIG.EDITOR_ALIGN_RIGHT =		0x20;
ORYX.CONFIG.EDITOR_ALIGN_SIZE =			0x30;

	/* Event types */
ORYX.CONFIG.EVENT_MOUSEDOWN =			"mousedown";
ORYX.CONFIG.EVENT_MOUSEUP =				"mouseup";
ORYX.CONFIG.EVENT_MOUSEOVER =			"mouseover";
ORYX.CONFIG.EVENT_MOUSEOUT =			"mouseout";
ORYX.CONFIG.EVENT_MOUSEMOVE =			"mousemove";
ORYX.CONFIG.EVENT_DBLCLICK =			"dblclick";
ORYX.CONFIG.EVENT_KEYDOWN =				"keydown";
ORYX.CONFIG.EVENT_KEYUP =				"keyup";

ORYX.CONFIG.EVENT_LOADED =				"editorloaded";
	
ORYX.CONFIG.EVENT_EXECUTE_COMMANDS =		"executeCommands";
ORYX.CONFIG.EVENT_STENCIL_SET_LOADED =		"stencilSetLoaded";
ORYX.CONFIG.EVENT_SELECTION_CHANGED =		"selectionchanged";
ORYX.CONFIG.EVENT_SHAPEADDED =				"shapeadded";
ORYX.CONFIG.EVENT_SHAPEREMOVED =			"shaperemoved";
ORYX.CONFIG.EVENT_PROPERTY_CHANGED =		"propertyChanged";
ORYX.CONFIG.EVENT_DRAGDROP_START =			"dragdrop.start";
ORYX.CONFIG.EVENT_SHAPE_MENU_CLOSE =		"shape.menu.close";
ORYX.CONFIG.EVENT_DRAGDROP_END =			"dragdrop.end";
ORYX.CONFIG.EVENT_RESIZE_START =			"resize.start";
ORYX.CONFIG.EVENT_RESIZE_END =				"resize.end";
ORYX.CONFIG.EVENT_DRAGDOCKER_DOCKED =		"dragDocker.docked";
ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW =			"highlight.showHighlight";
ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE =			"highlight.hideHighlight";
ORYX.CONFIG.EVENT_LOADING_ENABLE =			"loading.enable";
ORYX.CONFIG.EVENT_LOADING_DISABLE =			"loading.disable";
ORYX.CONFIG.EVENT_LOADING_STATUS =			"loading.status";
ORYX.CONFIG.EVENT_OVERLAY_SHOW =			"overlay.show";
ORYX.CONFIG.EVENT_OVERLAY_HIDE =			"overlay.hide";
ORYX.CONFIG.EVENT_ARRANGEMENT_TOP =			"arrangement.setToTop";
ORYX.CONFIG.EVENT_ARRANGEMENT_BACK =		"arrangement.setToBack";
ORYX.CONFIG.EVENT_ARRANGEMENT_FORWARD =		"arrangement.setForward";
ORYX.CONFIG.EVENT_ARRANGEMENT_BACKWARD =	"arrangement.setBackward";
ORYX.CONFIG.EVENT_PROPWINDOW_PROP_CHANGED =	"propertyWindow.propertyChanged";
ORYX.CONFIG.EVENT_LAYOUT_ROWS =				"layout.rows";
ORYX.CONFIG.EVENT_LAYOUT_BPEL =				"layout.BPEL";
ORYX.CONFIG.EVENT_LAYOUT_BPEL_VERTICAL =    "layout.BPEL.vertical";
ORYX.CONFIG.EVENT_LAYOUT_BPEL_HORIZONTAL =  "layout.BPEL.horizontal";
ORYX.CONFIG.EVENT_LAYOUT_BPEL_SINGLECHILD = "layout.BPEL.singlechild";
ORYX.CONFIG.EVENT_LAYOUT_BPEL_AUTORESIZE =	"layout.BPEL.autoresize";
ORYX.CONFIG.EVENT_AUTOLAYOUT_LAYOUT =		"autolayout.layout";
ORYX.CONFIG.EVENT_UNDO_EXECUTE =			"undo.execute";
ORYX.CONFIG.EVENT_UNDO_ROLLBACK =			"undo.rollback";
ORYX.CONFIG.EVENT_BUTTON_UPDATE =           "toolbar.button.update";
ORYX.CONFIG.EVENT_LAYOUT = 					"layout.dolayout";
ORYX.CONFIG.EVENT_GLOSSARY_LINK_EDIT = 		"glossary.link.edit";
ORYX.CONFIG.EVENT_GLOSSARY_SHOW =			"glossary.show.info";
ORYX.CONFIG.EVENT_GLOSSARY_NEW =			"glossary.show.new";
ORYX.CONFIG.EVENT_DOCKERDRAG = 				"dragTheDocker";	
	
ORYX.CONFIG.EVENT_SHOW_PROPERTYWINDOW =		"propertywindow.show";
ORYX.CONFIG.EVENT_ABOUT_TO_SAVE = "file.aboutToSave";
	
	/* Selection Shapes Highlights */
ORYX.CONFIG.SELECTION_HIGHLIGHT_SIZE =				5;
ORYX.CONFIG.SELECTION_HIGHLIGHT_COLOR =				"#4444FF";
ORYX.CONFIG.SELECTION_HIGHLIGHT_COLOR2 =			"#9999FF";
	
ORYX.CONFIG.SELECTION_HIGHLIGHT_STYLE_CORNER = 		"corner";
ORYX.CONFIG.SELECTION_HIGHLIGHT_STYLE_RECTANGLE = 	"rectangle";
	
ORYX.CONFIG.SELECTION_VALID_COLOR =					"#00FF00";
ORYX.CONFIG.SELECTION_INVALID_COLOR =				"#FF0000";


ORYX.CONFIG.DOCKER_DOCKED_COLOR =		"#00FF00";
ORYX.CONFIG.DOCKER_UNDOCKED_COLOR =		"#FF0000";
ORYX.CONFIG.DOCKER_SNAP_OFFSET =		10;
		
	/* Copy & Paste */
ORYX.CONFIG.EDIT_OFFSET_PASTE =			10;

	/* Key-Codes */
ORYX.CONFIG.KEY_CODE_X = 				88;
ORYX.CONFIG.KEY_CODE_C = 				67;
ORYX.CONFIG.KEY_CODE_V = 				86;
ORYX.CONFIG.KEY_CODE_DELETE = 			46;
ORYX.CONFIG.KEY_CODE_META =				224;
ORYX.CONFIG.KEY_CODE_BACKSPACE =		8;
ORYX.CONFIG.KEY_CODE_LEFT =				37;
ORYX.CONFIG.KEY_CODE_RIGHT =			39;
ORYX.CONFIG.KEY_CODE_UP =				38;
ORYX.CONFIG.KEY_CODE_DOWN =				40;

	// TODO Determine where the lowercase constants are still used and remove them from here.
ORYX.CONFIG.KEY_Code_enter =			12;
ORYX.CONFIG.KEY_Code_left =				37;
ORYX.CONFIG.KEY_Code_right =			39;
ORYX.CONFIG.KEY_Code_top =				38;
ORYX.CONFIG.KEY_Code_bottom =			40;

/* Supported Meta Keys */
	
ORYX.CONFIG.META_KEY_META_CTRL = 		"metactrl";
ORYX.CONFIG.META_KEY_ALT = 				"alt";
ORYX.CONFIG.META_KEY_SHIFT = 			"shift";

/* Key Actions */

ORYX.CONFIG.KEY_ACTION_DOWN = 			"down";
ORYX.CONFIG.KEY_ACTION_UP = 			"up";

/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

function printf() {
	
	var result = arguments[0];
	for (var i=1; i<arguments.length; i++)
		result = result.replace('%' + (i-1), arguments[i]);
	return result;
}

// oryx constants.
var ORYX_LOGLEVEL_TRACE = 5;
var ORYX_LOGLEVEL_DEBUG = 4;
var ORYX_LOGLEVEL_INFO = 3;
var ORYX_LOGLEVEL_WARN = 2;
var ORYX_LOGLEVEL_ERROR = 1;
var ORYX_LOGLEVEL_FATAL = 0;
var ORYX_LOGLEVEL = 3;
var ORYX_CONFIGURATION_DELAY = 100;
var ORYX_CONFIGURATION_WAIT_ATTEMPTS = 10;

if(!ORYX) var ORYX = {};

ORYX = Object.extend(ORYX, {

	//set the path in the config.js file!!!!
	PATH: ORYX.CONFIG.ROOT_PATH,
	//CONFIGURATION: "config.js",

	URLS: [
	
		/*
		 * No longer needed, since compiled into one source file that
		 * contains all of this files concatenated in the exact order
		 * as defined in build.xml.
		 */
		
/*
		"scripts/Core/SVG/editpathhandler.js",
		"scripts/Core/SVG/minmaxpathhandler.js",
		"scripts/Core/SVG/pointspathhandler.js",
		"scripts/Core/SVG/svgmarker.js",
		"scripts/Core/SVG/svgshape.js",
		"scripts/Core/SVG/label.js",
		"scripts/Core/Math/math.js",		
		"scripts/Core/StencilSet/stencil.js",
		"scripts/Core/StencilSet/property.js",
		"scripts/Core/StencilSet/propertyitem.js",
		"scripts/Core/StencilSet/rules.js",
		"scripts/Core/StencilSet/stencilset.js",
		"scripts/Core/StencilSet/stencilsets.js",
		"scripts/Core/bounds.js",
		"scripts/Core/uiobject.js",
		"scripts/Core/abstractshape.js",
		"scripts/Core/canvas.js",
		"scripts/Core/main.js",
		"scripts/Core/svgDrag.js",
		"scripts/Core/shape.js",
		"scripts/Core/Controls/control.js",
		"scripts/Core/Controls/docker.js",
		"scripts/Core/Controls/magnet.js",		
		"scripts/Core/node.js",
		"scripts/Core/edge.js"
*/	],

	alreadyLoaded: [],

	configrationRetries: 0,

	Version: '0.1.1',

	availablePlugins: [],

	/**
	 * The ORYX.Log logger.
	 */
	Log: {
	
		__appenders: [
			{ append: function(message) {
				console.log(message); }}
		],
	
		trace: function() {	if(ORYX_LOGLEVEL >= ORYX_LOGLEVEL_TRACE)
			ORYX.Log.__log('TRACE', arguments); },
		debug: function() { if(ORYX_LOGLEVEL >= ORYX_LOGLEVEL_DEBUG)
			ORYX.Log.__log('DEBUG', arguments); },
		info: function() { if(ORYX_LOGLEVEL >= ORYX_LOGLEVEL_INFO)
			ORYX.Log.__log('INFO', arguments); },
		warn: function() { if(ORYX_LOGLEVEL >= ORYX_LOGLEVEL_WARN)
			ORYX.Log.__log('WARN', arguments); },
		error: function() { if(ORYX_LOGLEVEL >= ORYX_LOGLEVEL_ERROR)
			ORYX.Log.__log('ERROR', arguments); },
		fatal: function() { if(ORYX_LOGLEVEL >= ORYX_LOGLEVEL_FATAL)
			ORYX.Log.__log('FATAL', arguments); },
		
		__log: function(prefix, messageParts) {
			
			messageParts[0] = (new Date()).getTime() + " "
				+ prefix + " " + messageParts[0];
			var message = printf.apply(null, messageParts);
			
			ORYX.Log.__appenders.each(function(appender) {
				appender.append(message);
			});
		},
		
		addAppender: function(appender) {
			ORYX.Log.__appenders.push(appender);
		}
	},

	/**
	 * First bootstrapping layer. The Oryx loading procedure begins. In this
	 * step, all preliminaries that are not in the responsibility of Oryx to be
	 * met have to be checked here, such as the existance of the prototpe
	 * library in the current execution environment. After that, the second
	 * bootstrapping layer is being invoked. Failing to ensure that any
	 * preliminary condition is not met has to fail with an error.
	 */
	load: function() {
		
		if (ORYX.CONFIG.PREVENT_LOADINGMASK_AT_READY !== true) {
			var waitingpanel = new Ext.Window({renderTo:Ext.getBody(),id:'oryx-loading-panel',bodyStyle:'padding: 8px;background:white',title:ORYX.I18N.Oryx.title,width:'auto',height:'auto',modal:true,resizable:false,closable:false,html:'<span style="font-size:11px;">' + ORYX.I18N.Oryx.pleaseWait + '</span>'})
			waitingpanel.show()
		}
		
		ORYX.Log.debug("Oryx begins loading procedure.");
		
		// check for prototype
		if( (typeof Prototype=='undefined') ||
			(typeof Element == 'undefined') ||
			(typeof Element.Methods=='undefined') ||
			parseFloat(Prototype.Version.split(".")[0] + "." +
				Prototype.Version.split(".")[1]) < 1.5)

			throw("Application requires the Prototype JavaScript framework >= 1.5.3");
		
		ORYX.Log.debug("Prototype > 1.5 found.");

		// continue loading.
		ORYX._load();
	},

	/**
	 * Second bootstrapping layer. The oryx configuration is checked. When not
	 * yet loaded, config.js is being requested from the server. A repeated
	 * error in retrieving the configuration will result in an error to be
	 * thrown after a certain time of retries. Once the configuration is there,
	 * all urls that are registered with oryx loading are being requested from
	 * the server. Once everything is loaded, the third layer is being invoked.
	 */
	_load: function() {
	/*
		// if configuration not there already,
		if(!(ORYX.CONFIG)) {
			
			// if this is the first attempt...
			if(ORYX.configrationRetries == 0) {
				
				// get the path and filename.
				var configuration = ORYX.PATH + ORYX.CONFIGURATION;
	
				ORYX.Log.debug("Configuration not found, loading from '%0'.",
					configuration);
				
				// require configuration file.
				Kickstart.require(configuration);
				
			// else if attempts exceeded ...
			} else if(ORYX.configrationRetries >= ORYX_CONFIGURATION_WAIT_ATTEMPTS) {
				
				throw "Tried to get configuration" +
					ORYX_CONFIGURATION_WAIT_ATTEMPTS +
					" times from '" + configuration + "'. Giving up."
					
			} else if(ORYX.configrationRetries > 0){
				
				// point out how many attempts are left...
				ORYX.Log.debug("Waiting once more (%0 attempts left)",
					(ORYX_CONFIGURATION_WAIT_ATTEMPTS -
						ORYX.configrationRetries));

			}
			
			// any case: continue in a moment with increased retry count.
			ORYX.configrationRetries++;
			window.setTimeout(ORYX._load, ORYX_CONFIGURATION_DELAY);
			return;
		}
		
		ORYX.Log.info("Configuration loaded.");
		
		// load necessary scripts.
		ORYX.URLS.each(function(url) {
			ORYX.Log.debug("Requireing '%0'", url);
			Kickstart.require(ORYX.PATH + url) });
	*/
		// configurate logging and load plugins.
		ORYX.loadPlugins();
	},

	/**
	 * Third bootstrapping layer. This is where first the plugin coniguration
	 * file is loaded into oryx, analyzed, and where all plugins are being
	 * requested by the server. Afterwards, all editor instances will be
	 * initialized.
	 */
	loadPlugins: function() {
		
		// load plugins if enabled.
		if(ORYX.CONFIG.PLUGINS_ENABLED)
			ORYX._loadPlugins()
		else
			ORYX.Log.warn("Ignoring plugins, loading Core only.");

		// init the editor instances.
		init();
	},
	
	_loadPlugins: function() {

		// load plugin configuration file.
		var source = ORYX.CONFIG.PLUGINS_CONFIG;

		ORYX.Log.debug("Loading plugin configuration from '%0'.", source);
	
		new Ajax.Request(source, {
			asynchronous: false,
			method: 'get',
			onSuccess: function(result) {

				/*
				 * This is the method that is being called when the plugin
				 * configuration was successfully loaded from the server. The
				 * file has to be processed and the contents need to be
				 * considered for further plugin requireation.
				 */
				
				ORYX.Log.info("Plugin configuration file loaded.");
		
				// get plugins.xml content
				var resultXml = result.responseXML;
				
				// TODO: Describe how properties are handled.
				// Get the globale Properties
				var globalProperties = [];
				var preferences = $A(resultXml.getElementsByTagName("properties"));
				preferences.each( function(p) {

					var props = $A(p.childNodes);
					props.each( function(prop) {
						var property = new Hash(); 
						
						// get all attributes from the node and set to global properties
						var attributes = $A(prop.attributes)
						attributes.each(function(attr){property[attr.nodeName] = attr.nodeValue});				
						if(attributes.length > 0) { globalProperties.push(property) };				
					});
				});

				
				// TODO Why are we using XML if we don't respect structure anyway?
				// for each plugin element in the configuration..
				var plugin = resultXml.getElementsByTagName("plugin");
				$A(plugin).each( function(node) {
					
					// get all element's attributes.
					// TODO: What about: var pluginData = $H(node.attributes) !?
					var pluginData = new Hash();
					$A(node.attributes).each( function(attr){
						pluginData[attr.nodeName] = attr.nodeValue});				
					
					// ensure there's a name attribute.
					if(!pluginData['name']) {
						ORYX.Log.error("A plugin is not providing a name. Ingnoring this plugin.");
						return;
					}

					// ensure there's a source attribute.
					if(!pluginData['source']) {
						ORYX.Log.error("Plugin with name '%0' doesn't provide a source attribute.", pluginData['name']);
						return;
					}
					
					// Get all private Properties
					var propertyNodes = node.getElementsByTagName("property");
					var properties = [];
					$A(propertyNodes).each(function(prop) {
						var property = new Hash(); 
						
						// Get all Attributes from the Node			
						var attributes = $A(prop.attributes)
						attributes.each(function(attr){property[attr.nodeName] = attr.nodeValue});				
						if(attributes.length > 0) { properties.push(property) };	
					
					});
					
					// Set all Global-Properties to the Properties
					properties = properties.concat(globalProperties);
					
					// Set Properties to Plugin-Data
					pluginData['properties'] = properties;
					
					// Get the RequieredNodes
					var requireNodes = node.getElementsByTagName("requires");
					var requires;
					$A(requireNodes).each(function(req) {			
						var namespace = $A(req.attributes).find(function(attr){ return attr.name == "namespace"})
						if( namespace && namespace.nodeValue ){
							if( !requires ){
								requires = {namespaces:[]}
							}
						
							requires.namespaces.push(namespace.nodeValue)
						} 
					});					
					
					// Set Requires to the Plugin-Data, if there is one
					if( requires ){
						pluginData['requires'] = requires;
					}


					// Get the RequieredNodes
					var notUsesInNodes = node.getElementsByTagName("notUsesIn");
					var notUsesIn;
					$A(notUsesInNodes).each(function(not) {			
						var namespace = $A(not.attributes).find(function(attr){ return attr.name == "namespace"})
						if( namespace && namespace.nodeValue ){
							if( !notUsesIn ){
								notUsesIn = {namespaces:[]}
							}
						
							notUsesIn.namespaces.push(namespace.nodeValue)
						} 
					});					
					
					// Set Requires to the Plugin-Data, if there is one
					if( notUsesIn ){
						pluginData['notUsesIn'] = notUsesIn;
					}		
					
								
					var url = ORYX.PATH + ORYX.CONFIG.PLUGINS_FOLDER + pluginData['source'];
		
					ORYX.Log.debug("Requireing '%0'", url);
		
					// Add the Script-Tag to the Site
					//Kickstart.require(url);
		
					ORYX.Log.info("Plugin '%0' successfully loaded.", pluginData['name']);
		
					// Add the Plugin-Data to all available Plugins
					ORYX.availablePlugins.push(pluginData);
		
				});
		
			},
			onFailure:this._loadPluginsOnFails
		});

	},

	_loadPluginsOnFails: function(result) {

		ORYX.Log.error("Plugin configuration file not available.");
	}
});

ORYX.Log.debug('Registering Oryx with Kickstart');
Kickstart.register(ORYX.load);

/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.SVG) {ORYX.Core.SVG = {};}


/**
 * EditPathHandler
 * 
 * Edit SVG paths' coordinates according to specified from-to movement and
 * horizontal and vertical scaling factors. 
 * The resulting path's d attribute is stored in instance variable d.
 * 
 * @constructor
 */
ORYX.Core.SVG.EditPathHandler = Clazz.extend({
	
	construct: function() {
		arguments.callee.$.construct.apply(this, arguments);
		
		this.x = 0;
		this.y = 0;
		this.oldX = 0;
		this.oldY = 0;
		this.deltaWidth = 1;
		this.deltaHeight = 1;
		
		this.d = "";
	},
	
	/**
	 * init
	 * 
	 * @param {float} x Target point's x-coordinate
	 * @param {float} y Target point's y-coordinate
	 * @param {float} oldX Reference point's x-coordinate
	 * @param {float} oldY Reference point's y-coordinate
	 * @param {float} deltaWidth Horizontal scaling factor
	 * @param {float} deltaHeight Vertical scaling factor
	 */
	init: function(x, y, oldX, oldY, deltaWidth, deltaHeight) {
		this.x = x;
		this.y = y;
		this.oldX = oldX;
		this.oldY = oldY;
		this.deltaWidth = deltaWidth;
		this.deltaHeight = deltaHeight;
		
		this.d = "";
	},

	/**
	 * editPointsAbs
	 * 
	 * @param {Array} points Array of absolutePoints
	 */
	editPointsAbs: function(points) {
		if(points instanceof Array) {
			var newPoints = [];
			var x, y;
			for(var i = 0; i < points.length; i++) {
				x = (parseFloat(points[i]) - this.oldX)*this.deltaWidth + this.x;
				i++;
				y = (parseFloat(points[i]) - this.oldY)*this.deltaHeight + this.y;
				newPoints.push(x);
				newPoints.push(y);
			}
			
			return newPoints;
		} else {
			//TODO error
		}
	},
	
	/**
	 * editPointsRel
	 * 
	 * @param {Array} points Array of absolutePoints
	 */
	editPointsRel: function(points) {
		if(points instanceof Array) {
			var newPoints = [];
			var x, y;
			for(var i = 0; i < points.length; i++) {
				x = parseFloat(points[i])*this.deltaWidth;
				i++;
				y = parseFloat(points[i])*this.deltaHeight;
				newPoints.push(x);
				newPoints.push(y);
			}
			
			return newPoints;
		} else {
			//TODO error
		}
	},

	/**
	 * arcAbs - A
	 * 
	 * @param {Number} rx
	 * @param {Number} ry
	 * @param {Number} xAxisRotation
	 * @param {Boolean} largeArcFlag
	 * @param {Boolean} sweepFlag
	 * @param {Number} x
	 * @param {Number} y
	 */
	arcAbs: function(rx, ry, xAxisRotation, largeArcFlag, sweepFlag, x, y) {
	    var pointsAbs = this.editPointsAbs([x, y]);
		var pointsRel = this.editPointsRel([rx, ry]);
		
		this.d = this.d.concat(" A" + pointsRel[0] + " " + pointsRel[1] + 
								" " + xAxisRotation + " " + largeArcFlag + 
								" " + sweepFlag + " " + pointsAbs[0] + " " +
								pointsAbs[1] + " ");					
	},

	/**
	 * arcRel - a
	 * 
	 * @param {Number} rx
	 * @param {Number} ry
	 * @param {Number} xAxisRotation
	 * @param {Boolean} largeArcFlag
	 * @param {Boolean} sweepFlag
	 * @param {Number} x
	 * @param {Number} y
	 */
	arcRel: function(rx, ry, xAxisRotation, largeArcFlag, sweepFlag, x, y) {
		var pointsRel = this.editPointsRel([rx, ry, x, y]);
		
		this.d = this.d.concat(" a" + pointsRel[0] + " " + pointsRel[1] + 
								" " + xAxisRotation + " " + largeArcFlag + 
								" " + sweepFlag + " " + pointsRel[2] + " " +
								pointsRel[3] + " ");	
	},

	/**
	 * curvetoCubicAbs - C
	 * 
	 * @param {Number} x1
	 * @param {Number} y1
	 * @param {Number} x2
	 * @param {Number} y2
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoCubicAbs: function(x1, y1, x2, y2, x, y) {
	    var pointsAbs = this.editPointsAbs([x1, y1, x2, y2, x, y]);
		
		this.d = this.d.concat(" C" + pointsAbs[0] + " " + pointsAbs[1] + 
								" " + pointsAbs[2] + " " + pointsAbs[3] + 
								" " + pointsAbs[4] + " " + pointsAbs[5] + " ");	
	},

	/**
	 * curvetoCubicRel - c
	 * 
	 * @param {Number} x1
	 * @param {Number} y1
	 * @param {Number} x2
	 * @param {Number} y2
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoCubicRel: function(x1, y1, x2, y2, x, y) {
	    var pointsRel = this.editPointsRel([x1, y1, x2, y2, x, y]);
		
		this.d = this.d.concat(" c" + pointsRel[0] + " " + pointsRel[1] + 
								" " + pointsRel[2] + " " + pointsRel[3] + 
								" " + pointsRel[4] + " " + pointsRel[5] + " ");	
	},

	/**
	 * linetoHorizontalAbs - H
	 * 
	 * @param {Number} x
	 */
	linetoHorizontalAbs: function(x) {
	    var pointsAbs = this.editPointsAbs([x, 0]);
		
		this.d = this.d.concat(" H" + pointsAbs[0] + " ");	
	},

	/**
	 * linetoHorizontalRel - h
	 * 
	 * @param {Number} x
	 */
	linetoHorizontalRel: function(x) {
	    var pointsRel = this.editPointsRel([x, 0]);
		
		this.d = this.d.concat(" h" + pointsRel[0] + " ");	
	},

	/**
	 * linetoAbs - L
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	linetoAbs: function(x, y) {
	    var pointsAbs = this.editPointsAbs([x, y]);
		
		this.d = this.d.concat(" L" + pointsAbs[0] + " " + pointsAbs[1] + " ");
	},

	/**
	 * linetoRel - l
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	linetoRel: function(x, y) {
	    var pointsRel = this.editPointsRel([x, y]);
		
		this.d = this.d.concat(" l" + pointsRel[0] + " " + pointsRel[1] + " ");
	},

	/**
	 * movetoAbs - M
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	movetoAbs: function(x, y) {
	    var pointsAbs = this.editPointsAbs([x, y]);
		
		this.d = this.d.concat(" M" + pointsAbs[0] + " " + pointsAbs[1] + " ");
	},

	/**
	 * movetoRel - m
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	movetoRel: function(x, y) {
	    var pointsRel;
		if(this.d === "") {
			pointsRel = this.editPointsAbs([x, y]);
		} else {
			pointsRel = this.editPointsRel([x, y]);
		}
		
		this.d = this.d.concat(" m" + pointsRel[0] + " " + pointsRel[1] + " ");
	},

	/**
	 * curvetoQuadraticAbs - Q
	 * 
	 * @param {Number} x1
	 * @param {Number} y1
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoQuadraticAbs: function(x1, y1, x, y) {
	    var pointsAbs = this.editPointsAbs([x1, y1, x, y]);
		
		this.d = this.d.concat(" Q" + pointsAbs[0] + " " + pointsAbs[1] + " " +
								pointsAbs[2] + " " + pointsAbs[3] + " ");
	},

	/**
	 * curvetoQuadraticRel - q
	 * 
	 * @param {Number} x1
	 * @param {Number} y1
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoQuadraticRel: function(x1, y1, x, y) {
	    var pointsRel = this.editPointsRel([x1, y1, x, y]);
		
		this.d = this.d.concat(" q" + pointsRel[0] + " " + pointsRel[1] + " " +
								pointsRel[2] + " " + pointsRel[3] + " ");
	},

	/**
	 * curvetoCubicSmoothAbs - S
	 * 
	 * @param {Number} x2
	 * @param {Number} y2
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoCubicSmoothAbs: function(x2, y2, x, y) {
	    var pointsAbs = this.editPointsAbs([x2, y2, x, y]);
		
		this.d = this.d.concat(" S" + pointsAbs[0] + " " + pointsAbs[1] + " " +
								pointsAbs[2] + " " + pointsAbs[3] + " ");
	},

	/**
	 * curvetoCubicSmoothRel - s
	 * 
	 * @param {Number} x2
	 * @param {Number} y2
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoCubicSmoothRel: function(x2, y2, x, y) {
	    var pointsRel = this.editPointsRel([x2, y2, x, y]);
		
		this.d = this.d.concat(" s" + pointsRel[0] + " " + pointsRel[1] + " " +
								pointsRel[2] + " " + pointsRel[3] + " ");
	},

	/**
	 * curvetoQuadraticSmoothAbs - T
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoQuadraticSmoothAbs: function(x, y) {
	    var pointsAbs = this.editPointsAbs([x, y]);
		
		this.d = this.d.concat(" T" + pointsAbs[0] + " " + pointsAbs[1] + " ");
	},

	/**
	 * curvetoQuadraticSmoothRel - t
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoQuadraticSmoothRel: function(x, y) {
	    var pointsRel = this.editPointsRel([x, y]);
		
		this.d = this.d.concat(" t" + pointsRel[0] + " " + pointsRel[1] + " ");
	},

	/**
	 * linetoVerticalAbs - V
	 * 
	 * @param {Number} y
	 */
	linetoVerticalAbs: function(y) {
	    var pointsAbs = this.editPointsAbs([0, y]);
		
		this.d = this.d.concat(" V" + pointsAbs[1] + " ");
	},

	/**
	 * linetoVerticalRel - v
	 * 
	 * @param {Number} y
	 */
	linetoVerticalRel: function(y) {
	    var pointsRel = this.editPointsRel([0, y]);
		
		this.d = this.d.concat(" v" + pointsRel[1] + " ");
	},

	/**
	 * closePath - z or Z
	 */
	closePath: function() {
	    this.d = this.d.concat(" z");
	}

});/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.SVG) {ORYX.Core.SVG = {};}


/**
 * MinMaxPathHandler
 * 
 * Determine the minimum and maximum of a SVG path's absolute coordinates.
 * For relative coordinates the absolute value is computed for consideration.
 * The values are stored in attributes minX, minY, maxX, and maxY.
 * 
 * @constructor
 */
ORYX.Core.SVG.MinMaxPathHandler = Clazz.extend({
	
	construct: function() {
		arguments.callee.$.construct.apply(this, arguments);
		
		this.minX = undefined;
		this.minY = undefined;
		this.maxX = undefined;
		this.maxY = undefined;
		
		this._lastAbsX = undefined;
		this._lastAbsY = undefined;
	},

	/**
	 * Store minimal and maximal coordinates of passed points to attributes minX, maxX, minY, maxY
	 * 
	 * @param {Array} points Array of absolutePoints
	 */
	calculateMinMax: function(points) {
		if(points instanceof Array) {
			var x, y;
			for(var i = 0; i < points.length; i++) {
				x = parseFloat(points[i]);
				i++;
				y = parseFloat(points[i]);
				
				this.minX = (this.minX !== undefined) ? Math.min(this.minX, x) : x;
				this.maxX = (this.maxX !== undefined) ? Math.max(this.maxX, x) : x;
				this.minY = (this.minY !== undefined) ? Math.min(this.minY, y) : y;
				this.maxY = (this.maxY !== undefined) ? Math.max(this.maxY, y) : y;
					
				this._lastAbsX = x;
				this._lastAbsY = y;
			}
		} else {
			//TODO error
		}
	},

	/**
	 * arcAbs - A
	 * 
	 * @param {Number} rx
	 * @param {Number} ry
	 * @param {Number} xAxisRotation
	 * @param {Boolean} largeArcFlag
	 * @param {Boolean} sweepFlag
	 * @param {Number} x
	 * @param {Number} y
	 */
	arcAbs: function(rx, ry, xAxisRotation, largeArcFlag, sweepFlag, x, y) {
	    this.calculateMinMax([x, y]);
	},

	/**
	 * arcRel - a
	 * 
	 * @param {Number} rx
	 * @param {Number} ry
	 * @param {Number} xAxisRotation
	 * @param {Boolean} largeArcFlag
	 * @param {Boolean} sweepFlag
	 * @param {Number} x
	 * @param {Number} y
	 */
	arcRel: function(rx, ry, xAxisRotation, largeArcFlag, sweepFlag, x, y) {
	    this.calculateMinMax([this._lastAbsX + x, this._lastAbsY + y]);
	},

	/**
	 * curvetoCubicAbs - C
	 * 
	 * @param {Number} x1
	 * @param {Number} y1
	 * @param {Number} x2
	 * @param {Number} y2
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoCubicAbs: function(x1, y1, x2, y2, x, y) {
	    this.calculateMinMax([x1, y1, x2, y2, x, y]);
	},

	/**
	 * curvetoCubicRel - c
	 * 
	 * @param {Number} x1
	 * @param {Number} y1
	 * @param {Number} x2
	 * @param {Number} y2
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoCubicRel: function(x1, y1, x2, y2, x, y) {
	    this.calculateMinMax([this._lastAbsX + x1, this._lastAbsY + y1,
							  this._lastAbsX + x2, this._lastAbsY + y2,
							  this._lastAbsX + x, this._lastAbsY + y]);
	},

	/**
	 * linetoHorizontalAbs - H
	 * 
	 * @param {Number} x
	 */
	linetoHorizontalAbs: function(x) {
	    this.calculateMinMax([x, this._lastAbsY]);
	},

	/**
	 * linetoHorizontalRel - h
	 * 
	 * @param {Number} x
	 */
	linetoHorizontalRel: function(x) {
	    this.calculateMinMax([this._lastAbsX + x, this._lastAbsY]);
	},

	/**
	 * linetoAbs - L
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	linetoAbs: function(x, y) {
	    this.calculateMinMax([x, y]);
	},

	/**
	 * linetoRel - l
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	linetoRel: function(x, y) {
	    this.calculateMinMax([this._lastAbsX + x, this._lastAbsY + y]);
	},

	/**
	 * movetoAbs - M
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	movetoAbs: function(x, y) {
	    this.calculateMinMax([x, y]);
	},

	/**
	 * movetoRel - m
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	movetoRel: function(x, y) {
	    if(this._lastAbsX && this._lastAbsY) {
			this.calculateMinMax([this._lastAbsX + x, this._lastAbsY + y]);
		} else {
			this.calculateMinMax([x, y]);
		}
	},

	/**
	 * curvetoQuadraticAbs - Q
	 * 
	 * @param {Number} x1
	 * @param {Number} y1
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoQuadraticAbs: function(x1, y1, x, y) {
	    this.calculateMinMax([x1, y1, x, y]);
	},

	/**
	 * curvetoQuadraticRel - q
	 * 
	 * @param {Number} x1
	 * @param {Number} y1
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoQuadraticRel: function(x1, y1, x, y) {
	    this.calculateMinMax([this._lastAbsX + x1, this._lastAbsY + y1, this._lastAbsX + x, this._lastAbsY + y]);
	},

	/**
	 * curvetoCubicSmoothAbs - S
	 * 
	 * @param {Number} x2
	 * @param {Number} y2
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoCubicSmoothAbs: function(x2, y2, x, y) {
	    this.calculateMinMax([x2, y2, x, y]);
	},

	/**
	 * curvetoCubicSmoothRel - s
	 * 
	 * @param {Number} x2
	 * @param {Number} y2
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoCubicSmoothRel: function(x2, y2, x, y) {
	    this.calculateMinMax([this._lastAbsX + x2, this._lastAbsY + y2, this._lastAbsX + x, this._lastAbsY + y]);
	},

	/**
	 * curvetoQuadraticSmoothAbs - T
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoQuadraticSmoothAbs: function(x, y) {
	    this.calculateMinMax([x, y]);
	},

	/**
	 * curvetoQuadraticSmoothRel - t
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoQuadraticSmoothRel: function(x, y) {
	    this.calculateMinMax([this._lastAbsX + x, this._lastAbsY + y]);
	},

	/**
	 * linetoVerticalAbs - V
	 * 
	 * @param {Number} y
	 */
	linetoVerticalAbs: function(y) {
	    this.calculateMinMax([this._lastAbsX, y]);
	},

	/**
	 * linetoVerticalRel - v
	 * 
	 * @param {Number} y
	 */
	linetoVerticalRel: function(y) {
	    this.calculateMinMax([this._lastAbsX, this._lastAbsY + y]);
	},

	/**
	 * closePath - z or Z
	 */
	closePath: function() {
	    return;// do nothing
	}

});/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.SVG) {ORYX.Core.SVG = {};}


/**
 * PathHandler
 * 
 * Determine absolute points of a SVG path. The coordinates are stored 
 * sequentially in the attribute points (x-coordinates at even indices,
 * y-coordinates at odd indices).
 * 
 * @constructor
 */
ORYX.Core.SVG.PointsPathHandler = Clazz.extend({
	
	construct: function() {
		arguments.callee.$.construct.apply(this, arguments);
		
		this.points = [];
		
		this._lastAbsX = undefined;
		this._lastAbsY = undefined;
	},

	/**
	 * addPoints
	 * 
	 * @param {Array} points Array of absolutePoints
	 */
	addPoints: function(points) {
		if(points instanceof Array) {
			var x, y;
			for(var i = 0; i < points.length; i++) {
				x = parseFloat(points[i]);
				i++;
				y = parseFloat(points[i]);
				
				this.points.push(x);
				this.points.push(y);
				//this.points.push({x:x, y:y});
					
				this._lastAbsX = x;
				this._lastAbsY = y;
			}
		} else {
			//TODO error
		}
	},

	/**
	 * arcAbs - A
	 * 
	 * @param {Number} rx
	 * @param {Number} ry
	 * @param {Number} xAxisRotation
	 * @param {Boolean} largeArcFlag
	 * @param {Boolean} sweepFlag
	 * @param {Number} x
	 * @param {Number} y
	 */
	arcAbs: function(rx, ry, xAxisRotation, largeArcFlag, sweepFlag, x, y) {
	    this.addPoints([x, y]);
	},

	/**
	 * arcRel - a
	 * 
	 * @param {Number} rx
	 * @param {Number} ry
	 * @param {Number} xAxisRotation
	 * @param {Boolean} largeArcFlag
	 * @param {Boolean} sweepFlag
	 * @param {Number} x
	 * @param {Number} y
	 */
	arcRel: function(rx, ry, xAxisRotation, largeArcFlag, sweepFlag, x, y) {
	    this.addPoints([this._lastAbsX + x, this._lastAbsY + y]);
	},

	/**
	 * curvetoCubicAbs - C
	 * 
	 * @param {Number} x1
	 * @param {Number} y1
	 * @param {Number} x2
	 * @param {Number} y2
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoCubicAbs: function(x1, y1, x2, y2, x, y) {
	    this.addPoints([x, y]);
	},

	/**
	 * curvetoCubicRel - c
	 * 
	 * @param {Number} x1
	 * @param {Number} y1
	 * @param {Number} x2
	 * @param {Number} y2
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoCubicRel: function(x1, y1, x2, y2, x, y) {
	    this.addPoints([this._lastAbsX + x, this._lastAbsY + y]);
	},

	/**
	 * linetoHorizontalAbs - H
	 * 
	 * @param {Number} x
	 */
	linetoHorizontalAbs: function(x) {
	    this.addPoints([x, this._lastAbsY]);
	},

	/**
	 * linetoHorizontalRel - h
	 * 
	 * @param {Number} x
	 */
	linetoHorizontalRel: function(x) {
	    this.addPoints([this._lastAbsX + x, this._lastAbsY]);
	},

	/**
	 * linetoAbs - L
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	linetoAbs: function(x, y) {
	    this.addPoints([x, y]);
	},

	/**
	 * linetoRel - l
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	linetoRel: function(x, y) {
	    this.addPoints([this._lastAbsX + x, this._lastAbsY + y]);
	},

	/**
	 * movetoAbs - M
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	movetoAbs: function(x, y) {
	    this.addPoints([x, y]);
	},

	/**
	 * movetoRel - m
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	movetoRel: function(x, y) {
	    if(this._lastAbsX && this._lastAbsY) {
			this.addPoints([this._lastAbsX + x, this._lastAbsY + y]);
		} else {
			this.addPoints([x, y]);
		}
	},

	/**
	 * curvetoQuadraticAbs - Q
	 * 
	 * @param {Number} x1
	 * @param {Number} y1
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoQuadraticAbs: function(x1, y1, x, y) {
	    this.addPoints([x, y]);
	},

	/**
	 * curvetoQuadraticRel - q
	 * 
	 * @param {Number} x1
	 * @param {Number} y1
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoQuadraticRel: function(x1, y1, x, y) {
	    this.addPoints([this._lastAbsX + x, this._lastAbsY + y]);
	},

	/**
	 * curvetoCubicSmoothAbs - S
	 * 
	 * @param {Number} x2
	 * @param {Number} y2
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoCubicSmoothAbs: function(x2, y2, x, y) {
	    this.addPoints([x, y]);
	},

	/**
	 * curvetoCubicSmoothRel - s
	 * 
	 * @param {Number} x2
	 * @param {Number} y2
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoCubicSmoothRel: function(x2, y2, x, y) {
	    this.addPoints([this._lastAbsX + x, this._lastAbsY + y]);
	},

	/**
	 * curvetoQuadraticSmoothAbs - T
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoQuadraticSmoothAbs: function(x, y) {
	    this.addPoints([x, y]);
	},

	/**
	 * curvetoQuadraticSmoothRel - t
	 * 
	 * @param {Number} x
	 * @param {Number} y
	 */
	curvetoQuadraticSmoothRel: function(x, y) {
	    this.addPoints([this._lastAbsX + x, this._lastAbsY + y]);
	},

	/**
	 * linetoVerticalAbs - V
	 * 
	 * @param {Number} y
	 */
	linetoVerticalAbs: function(y) {
	    this.addPoints([this._lastAbsX, y]);
	},

	/**
	 * linetoVerticalRel - v
	 * 
	 * @param {Number} y
	 */
	linetoVerticalRel: function(y) {
	    this.addPoints([this._lastAbsX, this._lastAbsY + y]);
	},

	/**
	 * closePath - z or Z
	 */
	closePath: function() {
	    return;// do nothing
	}

});/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 *
 * Config variables
 */
NAMESPACE_ORYX = "http://www.b3mn.org/oryx";
NAMESPACE_SVG = "http://www.w3.org/2000/svg/";

/**
 * @classDescription This class wraps the manipulation of a SVG marker.
 * @namespace ORYX.Core.SVG
 * uses Inheritance (Clazz)
 * uses Prototype 1.5.0
 *
 */

/**
 * Init package
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.SVG) {ORYX.Core.SVG = {};}

ORYX.Core.SVG.SVGMarker = Clazz.extend({

	/**
	 * Constructor
	 * @param markerElement {SVGMarkerElement}
	 */
	construct: function(markerElement) {
		arguments.callee.$.construct.apply(this, arguments);

		this.id = undefined;
		this.element = markerElement;
		this.refX = undefined;
		this.refY = undefined;
		this.markerWidth = undefined;
		this.markerHeight = undefined;
		this.oldRefX = undefined;
		this.oldRefY = undefined;
		this.oldMarkerWidth = undefined;
		this.oldMarkerHeight = undefined;
		this.optional = false;
		this.enabled = true;
		this.minimumLength = undefined;
		this.resize = false;

		this.svgShapes = [];

		this._init(); //initialisation of all the properties declared above.
	},

	/**
	 * Initializes the values that are defined in the constructor.
	 */
	_init: function() {
		//check if this.element is a SVGMarkerElement
		if(!( this.element == "[object SVGMarkerElement]")) {
			throw "SVGMarker: Argument is not an instance of SVGMarkerElement.";
		}

		this.id = this.element.getAttributeNS(null, "id");
		
		//init svg marker attributes
		var refXValue = this.element.getAttributeNS(null, "refX");
		if(refXValue) {
			this.refX = parseFloat(refXValue);
		} else {
			this.refX = 0;
		}
		var refYValue = this.element.getAttributeNS(null, "refY");
		if(refYValue) {
			this.refY = parseFloat(refYValue);
		} else {
			this.refY = 0;
		}
		var markerWidthValue = this.element.getAttributeNS(null, "markerWidth");
		if(markerWidthValue) {
			this.markerWidth = parseFloat(markerWidthValue);
		} else {
			this.markerWidth = 3;
		}
		var markerHeightValue = this.element.getAttributeNS(null, "markerHeight");
		if(markerHeightValue) {
			this.markerHeight = parseFloat(markerHeightValue);
		} else {
			this.markerHeight = 3;
		}

		this.oldRefX = this.refX;
		this.oldRefY = this.refY;
		this.oldMarkerWidth = this.markerWidth;
		this.oldMarkerHeight = this.markerHeight;

		//init oryx attributes
		var optionalAttr = this.element.getAttributeNS(NAMESPACE_ORYX, "optional");
		if(optionalAttr) {
			optionalAttr = optionalAttr.strip();
			this.optional = (optionalAttr.toLowerCase() === "yes");
		} else {
			this.optional = false;
		}

		var enabledAttr = this.element.getAttributeNS(NAMESPACE_ORYX, "enabled");
		if(enabledAttr) {
			enabledAttr = enabledAttr.strip();
			this.enabled = !(enabledAttr.toLowerCase() === "no");
		} else {
			this.enabled = true;
		}

		var minLengthAttr = this.element.getAttributeNS(NAMESPACE_ORYX, "minimumLength");
		if(minLengthAttr) {
			this.minimumLength = parseFloat(minLengthAttr);
		}

		var resizeAttr = this.element.getAttributeNS(NAMESPACE_ORYX, "resize");
		if(resizeAttr) {
			resizeAttr = resizeAttr.strip();
			this.resize = (resizeAttr.toLowerCase() === "yes");
		} else {
			this.resize = false;
		}

		//init SVGShape objects
		//this.svgShapes = this._getSVGShapes(this.element);
	},

	/**
	 *
	 */
	_getSVGShapes: function(svgElement) {
		if(svgElement.hasChildNodes) {
			var svgShapes = [];
			var me = this;
			$A(svgElement.childNodes).each(function(svgChild) {
				try {
					var svgShape = new ORYX.Core.SVG.SVGShape(svgChild);
					svgShapes.push(svgShape);
				} catch (e) {
					svgShapes = svgShapes.concat(me._getSVGShapes(svgChild));
				}
			});
			return svgShapes;
		}
	},

	/**
	 * Writes the changed values into the SVG marker.
	 */
	update: function() {
		//TODO mache marker resizebar!!! aber erst wenn der rest der connectingshape funzt!

//		//update marker attributes
//		if(this.refX != this.oldRefX) {
//			this.element.setAttributeNS(null, "refX", this.refX);
//		}
//		if(this.refY != this.oldRefY) {
//			this.element.setAttributeNS(null, "refY", this.refY);
//		}
//		if(this.markerWidth != this.oldMarkerWidth) {
//			this.element.setAttributeNS(null, "markerWidth", this.markerWidth);
//		}
//		if(this.markerHeight != this.oldMarkerHeight) {
//			this.element.setAttributeNS(null, "markerHeight", this.markerHeight);
//		}
//
//		//update SVGShape objects
//		var widthDelta = this.markerWidth / this.oldMarkerWidth;
//		var heightDelta = this.markerHeight / this.oldMarkerHeight;
//		if(widthDelta != 1 && heightDelta != 1) {
//			this.svgShapes.each(function(svgShape) {
//
//			});
//		}

		//update old values to prepare the next update
		this.oldRefX = this.refX;
		this.oldRefY = this.refY;
		this.oldMarkerWidth = this.markerWidth;
		this.oldMarkerHeight = this.markerHeight;
	},
	
	toString: function() { return (this.element) ? "SVGMarker " + this.element.id : "SVGMarker " + this.element;}
 });/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 *
 * Config variables
 */
NAMESPACE_ORYX = "http://www.b3mn.org/oryx";
NAMESPACE_SVG = "http://www.w3.org/2000/svg/";

/**
 * @classDescription This class wraps the manipulation of a SVG basic shape or a path.
 * @namespace ORYX.Core.SVG
 * uses Inheritance (Clazz)
 * uses Prototype 1.5.0
 * uses PathParser by Kevin Lindsey (http://kevlindev.com/)
 * uses MinMaxPathHandler
 * uses EditPathHandler
 *
 */

//init package
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.SVG) {ORYX.Core.SVG = {};}

ORYX.Core.SVG.SVGShape = Clazz.extend({

	/**
	 * Constructor
	 * @param svgElem {SVGElement} An SVGElement that is a basic shape or a path.
	 */
	construct: function(svgElem) {
		arguments.callee.$.construct.apply(this, arguments);

		this.type;
		this.element = svgElem;
		this.x = undefined;
		this.y = undefined;
		this.width = undefined;
		this.height = undefined;
		this.oldX = undefined;
		this.oldY = undefined;
		this.oldWidth = undefined;
		this.oldHeight = undefined;
		this.radiusX = undefined;
		this.radiusY = undefined;
		this.isHorizontallyResizable = false;
		this.isVerticallyResizable = false;
		//this.anchors = [];
		this.anchorLeft = false;
		this.anchorRight = false;
		this.anchorTop = false;
		this.anchorBottom = false;
		
		//attributes of path elements of edge objects
		this.allowDockers = true;
		this.resizeMarkerMid = false;

		this.editPathParser;
		this.editPathHandler;

		this.init(); //initialisation of all the properties declared above.
	},

	/**
	 * Initializes the values that are defined in the constructor.
	 */
	init: function() {

		/**initialize position and size*/
		if(ORYX.Editor.checkClassType(this.element, SVGRectElement) || ORYX.Editor.checkClassType(this.element, SVGImageElement)) {
			this.type = "Rect";
			
			var xAttr = this.element.getAttributeNS(null, "x");
			if(xAttr) {
				this.oldX = parseFloat(xAttr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			var yAttr = this.element.getAttributeNS(null, "y");
			if(yAttr) {
				this.oldY = parseFloat(yAttr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			var widthAttr = this.element.getAttributeNS(null, "width");
			if(widthAttr) {
				this.oldWidth = parseFloat(widthAttr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			var heightAttr = this.element.getAttributeNS(null, "height");
			if(heightAttr) {
				this.oldHeight = parseFloat(heightAttr);
			} else {
				throw "Missing attribute in element " + this.element;
			}

		} else if(ORYX.Editor.checkClassType(this.element, SVGCircleElement)) {
			this.type = "Circle";
			
			var cx = undefined;
			var cy = undefined;
			//var r = undefined;

			var cxAttr = this.element.getAttributeNS(null, "cx");
			if(cxAttr) {
				cx = parseFloat(cxAttr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			var cyAttr = this.element.getAttributeNS(null, "cy");
			if(cyAttr) {
				cy = parseFloat(cyAttr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			var rAttr = this.element.getAttributeNS(null, "r");
			if(rAttr) {
				//r = parseFloat(rAttr);
				this.radiusX = parseFloat(rAttr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			this.oldX = cx - this.radiusX;
			this.oldY = cy - this.radiusX;
			this.oldWidth = 2*this.radiusX;
			this.oldHeight = 2*this.radiusX;

		} else if(ORYX.Editor.checkClassType(this.element, SVGEllipseElement)) {
			this.type = "Ellipse";
			
			var cx = undefined;
			var cy = undefined;
			//var rx = undefined;
			//var ry = undefined;
			var cxAttr = this.element.getAttributeNS(null, "cx");
			if(cxAttr) {
				cx = parseFloat(cxAttr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			var cyAttr = this.element.getAttributeNS(null, "cy");
			if(cyAttr) {
				cy = parseFloat(cyAttr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			var rxAttr = this.element.getAttributeNS(null, "rx");
			if(rxAttr) {
				this.radiusX = parseFloat(rxAttr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			var ryAttr = this.element.getAttributeNS(null, "ry");
			if(ryAttr) {
				this.radiusY = parseFloat(ryAttr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			this.oldX = cx - this.radiusX;
			this.oldY = cy - this.radiusY;
			this.oldWidth = 2*this.radiusX;
			this.oldHeight = 2*this.radiusY;

		} else if(ORYX.Editor.checkClassType(this.element, SVGLineElement)) {
			this.type = "Line";
			
			var x1 = undefined;
			var y1 = undefined;
			var x2 = undefined;
			var y2 = undefined;
			var x1Attr = this.element.getAttributeNS(null, "x1");
			if(x1Attr) {
				x1 = parseFloat(x1Attr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			var y1Attr = this.element.getAttributeNS(null, "y1");
			if(y1Attr) {
				y1 = parseFloat(y1Attr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			var x2Attr = this.element.getAttributeNS(null, "x2");
			if(x2Attr) {
				x2 = parseFloat(x2Attr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			var y2Attr = this.element.getAttributeNS(null, "y2");
			if(y2Attr) {
				y2 = parseFloat(y2Attr);
			} else {
				throw "Missing attribute in element " + this.element;
			}
			this.oldX = Math.min(x1,x2);
			this.oldY = Math.min(y1,y2);
			this.oldWidth = Math.abs(x1-x2);
			this.oldHeight = Math.abs(y1-y2);

		} else if(ORYX.Editor.checkClassType(this.element, SVGPolylineElement) || ORYX.Editor.checkClassType(this.element, SVGPolygonElement)) {
			this.type = "Polyline";
			
			var pointsArray = [];
			if (this.element.points&&this.element.points.numberOfItems){
			    for(var i=0, size=this.element.points.numberOfItems; i<size; i++){
			        pointsArray.push(this.element.points.getItem(i).x)
			        pointsArray.push(this.element.points.getItem(i).y)
			    }
			} else {
				var points = this.element.getAttributeNS(null, "points");
				if(points) {
					points = points.replace(/,/g , " ");
					pointsArray = points.split(" ");
					pointsArray = pointsArray.without("");
				} else {
					throw "Missing attribute in element " + this.element;
				}
			}
			

			if(pointsArray && pointsArray.length && pointsArray.length > 1) {
				var minX = parseFloat(pointsArray[0]);
				var minY = parseFloat(pointsArray[1]);
				var maxX = parseFloat(pointsArray[0]);
				var maxY = parseFloat(pointsArray[1]);

				for(var i = 0; i < pointsArray.length; i++) {
					minX = Math.min(minX, parseFloat(pointsArray[i]));
					maxX = Math.max(maxX, parseFloat(pointsArray[i]));
					i++;
					minY = Math.min(minY, parseFloat(pointsArray[i]));
					maxY = Math.max(maxY, parseFloat(pointsArray[i]));
				}

				this.oldX = minX;
				this.oldY = minY;
				this.oldWidth = maxX-minX;
				this.oldHeight = maxY-minY;
			} else {
				throw "Missing attribute in element " + this.element;
			}

		} else if(ORYX.Editor.checkClassType(this.element, SVGPathElement)) {
			this.type = "Path";
			
			this.editPathParser = new PathParser();
			this.editPathHandler = new ORYX.Core.SVG.EditPathHandler();
			this.editPathParser.setHandler(this.editPathHandler);
		
			var parser = new PathParser();
			var handler = new ORYX.Core.SVG.MinMaxPathHandler();
			parser.setHandler(handler);
			parser.parsePath(this.element);

			this.oldX = handler.minX;
			this.oldY = handler.minY;
			this.oldWidth = handler.maxX - handler.minX;
			this.oldHeight = handler.maxY - handler.minY;

			delete parser;
			delete handler;
		} else {
			throw "Element is not a shape.";
		}

		/** initialize attributes of oryx namespace */
		//resize
		var resizeAttr = this.element.getAttributeNS(NAMESPACE_ORYX, "resize");
		if(resizeAttr) {
			resizeAttr = resizeAttr.toLowerCase();
			if(resizeAttr.match(/horizontal/)) {
				this.isHorizontallyResizable = true;
			} else {
				this.isHorizontallyResizable = false;
			}
			if(resizeAttr.match(/vertical/)) {
				this.isVerticallyResizable = true;
			} else {
				this.isVerticallyResizable = false;
			}
		} else {
			this.isHorizontallyResizable = false;
			this.isVerticallyResizable = false;
		}

		//anchors
		var anchorAttr = this.element.getAttributeNS(NAMESPACE_ORYX, "anchors");
		if(anchorAttr) {
			anchorAttr = anchorAttr.replace("/,/g", " ");
			var anchors = anchorAttr.split(" ").without("");
			
			for(var i = 0; i < anchors.length; i++) {
				switch(anchors[i].toLowerCase()) {
					case "left":
						this.anchorLeft = true;
						break;
					case "right":
						this.anchorRight = true;
						break;
					case "top":
						this.anchorTop = true;
						break;
					case "bottom":
						this.anchorBottom = true;
						break;
				}
			}
		}
		
		//allowDockers and resizeMarkerMid
		if(ORYX.Editor.checkClassType(this.element, SVGPathElement)) {
			var allowDockersAttr = this.element.getAttributeNS(NAMESPACE_ORYX, "allowDockers"); 
			if(allowDockersAttr) {
				if(allowDockersAttr.toLowerCase() === "no") {
					this.allowDockers = false; 
				} else {
					this.allowDockers = true;
				}
			}
			
			var resizeMarkerMidAttr = this.element.getAttributeNS(NAMESPACE_ORYX, "resizeMarker-mid"); 
			if(resizeMarkerMidAttr) {
				if(resizeMarkerMidAttr.toLowerCase() === "yes") {
					this.resizeMarkerMid = true; 
				} else {
					this.resizeMarkerMid = false;
				}
			}
		}	
			
		this.x = this.oldX;
		this.y = this.oldY;
		this.width = this.oldWidth;
		this.height = this.oldHeight;
	},

	/**
	 * Writes the changed values into the SVG element.
	 */
	update: function() {
		
		if(this.x !== this.oldX || this.y !== this.oldY || this.width !== this.oldWidth || this.height !== this.oldHeight) {
			switch(this.type) {
				case "Rect":
					if(this.x !== this.oldX) this.element.setAttributeNS(null, "x", this.x);
					if(this.y !== this.oldY) this.element.setAttributeNS(null, "y", this.y);
				 	if(this.width !== this.oldWidth) this.element.setAttributeNS(null, "width", this.width);
					if(this.height !== this.oldHeight) this.element.setAttributeNS(null, "height", this.height);
					break;
				case "Circle":
					//calculate the radius
					//var r;
//					if(this.width/this.oldWidth <= this.height/this.oldHeight) {
//						this.radiusX = ((this.width > this.height) ? this.width : this.height)/2.0;
//					} else {
					 	this.radiusX = ((this.width < this.height) ? this.width : this.height)/2.0;
					//}
	
					this.element.setAttributeNS(null, "cx", this.x + this.width/2.0);
					this.element.setAttributeNS(null, "cy", this.y + this.height/2.0);
					this.element.setAttributeNS(null, "r", this.radiusX);
					break;
				case "Ellipse":
					this.radiusX = this.width/2;
					this.radiusY = this.height/2;
	
					this.element.setAttributeNS(null, "cx", this.x + this.radiusX);
					this.element.setAttributeNS(null, "cy", this.y + this.radiusY);
					this.element.setAttributeNS(null, "rx", this.radiusX);
					this.element.setAttributeNS(null, "ry", this.radiusY);
					break;
				case "Line":
					if(this.x !== this.oldX)
						this.element.setAttributeNS(null, "x1", this.x);
						
					if(this.y !== this.oldY)
						this.element.setAttributeNS(null, "y1", this.y);
						
					if(this.x !== this.oldX || this.width !== this.oldWidth)
						this.element.setAttributeNS(null, "x2", this.x + this.width);
					
					if(this.y !== this.oldY || this.height !== this.oldHeight)
						this.element.setAttributeNS(null, "y2", this.y + this.height);
					break;
				case "Polyline":
					var points = this.element.getAttributeNS(null, "points");
					if(points) {
						points = points.replace(/,/g, " ").split(" ").without("");
	
						if(points && points.length && points.length > 1) {
	
							//TODO what if oldWidth == 0?
							var widthDelta = (this.oldWidth === 0) ? 0 : this.width / this.oldWidth;
						    var heightDelta = (this.oldHeight === 0) ? 0 : this.height / this.oldHeight;
	
							var updatedPoints = "";
						    for(var i = 0; i < points.length; i++) {
								var x = (parseFloat(points[i])-this.oldX)*widthDelta + this.x;
								i++;
								var y = (parseFloat(points[i])-this.oldY)*heightDelta + this.y;
		    					updatedPoints += x + " " + y + " ";
						    }
							this.element.setAttributeNS(null, "points", updatedPoints);
						} else {
							//TODO error
						}
					} else {
						//TODO error
					}
					break;
				case "Path":
					//calculate scaling delta
					//TODO what if oldWidth == 0?
					var widthDelta = (this.oldWidth === 0) ? 0 : this.width / this.oldWidth;
					var heightDelta = (this.oldHeight === 0) ? 0 : this.height / this.oldHeight;
	
					//use path parser to edit each point of the path
					this.editPathHandler.init(this.x, this.y, this.oldX, this.oldY, widthDelta, heightDelta);
					this.editPathParser.parsePath(this.element);
	
					//change d attribute of path
					this.element.setAttributeNS(null, "d", this.editPathHandler.d);
					break;
			}

			this.oldX = this.x;
			this.oldY = this.y;
			this.oldWidth = this.width;
			this.oldHeight = this.height;
		}
		
		// Remove cached variables
		delete this.visible;
		delete this.handler;
	},
	
	isPointIncluded: function(pointX, pointY) {

		// Check if there are the right arguments and if the node is visible
		if(!pointX || !pointY || !this.isVisible()) {
			return false;
		}

		switch(this.type) {
			case "Rect":
				return (pointX >= this.x && pointX <= this.x + this.width &&
						pointY >= this.y && pointY <= this.y+this.height);
				break;
			case "Circle":
				//calculate the radius
//				var r;
//				if(this.width/this.oldWidth <= this.height/this.oldHeight) {
//					r = ((this.width > this.height) ? this.width : this.height)/2.0;
//				} else {
//				 	r = ((this.width < this.height) ? this.width : this.height)/2.0;
//				}
				return ORYX.Core.Math.isPointInEllipse(pointX, pointY, this.x + this.width/2.0, this.y + this.height/2.0, this.radiusX, this.radiusX);
				break;
			case "Ellipse":
				return ORYX.Core.Math.isPointInEllipse(pointX, pointY, this.x + this.radiusX, this.y + this.radiusY, this.radiusX, this.radiusY);			
				break;
			case "Line":
				return ORYX.Core.Math.isPointInLine(pointX, pointY, this.x, this.y, this.x + this.width, this.y + this.height);
				break;
			case "Polyline":
				var points = this.element.getAttributeNS(null, "points");
	
				if(points) {
					points = points.replace(/,/g , " ").split(" ").without("");
	
					points = points.collect(function(n) {
						return parseFloat(n);
					});
					
					return ORYX.Core.Math.isPointInPolygone(pointX, pointY, points);
				} else {
					return false;
				}
				break;
			case "Path":
				
				// Cache Path handler
				if (!this.handler) {
					var parser = new PathParser();
					this.handler = new ORYX.Core.SVG.PointsPathHandler();
					parser.setHandler(this.handler);
					parser.parsePath(this.element);
				}
				
				return ORYX.Core.Math.isPointInPolygone(pointX, pointY, this.handler.points);

				break;
			default:
				return false;
		}
	},

	/**
	 * Returns true if the element is visible
	 * @param {SVGElement} elem
	 * @return boolean
	 */
	isVisible: function(elem) {
		
		if (this.visible !== undefined){
			return this.visible;
		}
			
		if (!elem) {
			elem = this.element;
		}

		var hasOwnerSVG = false;
		try { 
			hasOwnerSVG = !!elem.ownerSVGElement;
		} catch(e){}
		
		// Is SVG context
		if ( hasOwnerSVG ) {
			// IF G-Element
			if (ORYX.Editor.checkClassType(elem, SVGGElement)) {
				if (elem.className && elem.className.baseVal == "me") {
					this.visible = true;
					return this.visible;
				}
			}

			// Check if fill or stroke is set
			var fill = elem.getAttributeNS(null, "fill");
			var stroke = elem.getAttributeNS(null, "stroke");
			if (fill && fill == "none" && stroke && stroke == "none") {
				this.visible = false;
			} else {
				// Check if displayed
				var attr = elem.getAttributeNS(null, "display");
				if(!attr)
					this.visible = this.isVisible(elem.parentNode);
				else if (attr == "none") 
					this.visible = false;
				else
					this.visible = true;
			}
		} else {
			this.visible = true;
		}
		
		return this.visible;
	},

	toString: function() { return (this.element) ? "SVGShape " + this.element.id : "SVGShape " + this.element;}
 });/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.SVG) {ORYX.Core.SVG = {};}

/**
 * @classDescription Class for adding text to a shape.
 * 
 */
ORYX.Core.SVG.Label = Clazz.extend({
	
	_characterSets:[
		"%W",
		"@",
		"m",
		"wDGMOQÖ#+=<>~^",
		"ABCHKNRSUVXZÜÄ&",
		"bdghnopquxöüETY1234567890ß_§${}*´`µ€",
		"aeksvyzäFLP?°²³",
		"c-",
		"rtJ\"/()[]:;!|\\",
		"fjI., ",
		"'",
		"il"
		],
	_characterSetValues:[15,14,13,11,10,9,8,7,6,5,4,3],

	/**
	 * Constructor
	 * @param options {Object} :
	 * 	textElement
	 * 
	 */
	construct: function(options) {
		arguments.callee.$.construct.apply(this, arguments);
		
		if(!options.textElement) {
			throw "Label: No parameter textElement." 
		} else if (!ORYX.Editor.checkClassType( options.textElement, SVGTextElement ) ) {
			throw "Label: Parameter textElement is not an SVGTextElement."	
		}
		
		this.invisibleRenderPoint = -5000;
		
		this.node = options.textElement;
		
		
		this.node.setAttributeNS(null, 'stroke-width', '0pt');
		this.node.setAttributeNS(null, 'letter-spacing', '-0.01px');
		
		this.shapeId = options.shapeId;
		
		this.id;
		
		this.fitToElemId;
		
		this.edgePosition;
		
		this.x;
		this.y;
		this.oldX;
		this.oldY;
		
		this.isVisible = true;
		
		this._text;
		this._verticalAlign;
		this._horizontalAlign;
		this._rotate;
		this._rotationPoint;
		
		//this.anchors = [];
		this.anchorLeft;
		this.anchorRight;
		this.anchorTop;
		this.anchorBottom;
		
		this._isChanged = true;

		//if the text element already has an id, don't change it.
		var _id = this.node.getAttributeNS(null, 'id');
		if(_id) {
			this.id = _id;
		}
		
		//initialization	
		
		//set referenced element the text is fit to
		this.fitToElemId = this.node.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, 'fittoelem');
		if(this.fitToElemId)
			this.fitToElemId = this.shapeId + this.fitToElemId;
		
		//set alignment	
		var alignValues = this.node.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, 'align');
		if(alignValues) {
			alignValues = alignValues.replace(/,/g, " ");
			alignValues = alignValues.split(" ");
			alignValues = alignValues.without("");
			
			alignValues.each((function(alignValue) {
				switch (alignValue) {
					case 'top':
					case 'middle':
					case 'bottom':
						if(!this._verticalAlign){this._originVerticalAlign = this._verticalAlign = alignValue;}
						break;
					case 'left':
					case 'center':
					case 'right':
						if(!this._horizontalAlign){this._originHorizontalAlign = this._horizontalAlign = alignValue;}
						break;
				}
			}).bind(this));
		}
		
		//set edge position (only in case the label belongs to an edge)
		this.edgePosition = this.node.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, 'edgePosition');
		if(this.edgePosition) {
			this.originEdgePosition = this.edgePosition = this.edgePosition.toLowerCase();
		}
		
		
		//get offset top
		this.offsetTop = this.node.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, 'offsetTop') || ORYX.CONFIG.OFFSET_EDGE_LABEL_TOP;
		if(this.offsetTop) {
			this.offsetTop = parseInt(this.offsetTop);
		}
		
		//get offset top
		this.offsetBottom = this.node.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, 'offsetBottom') || ORYX.CONFIG.OFFSET_EDGE_LABEL_BOTTOM;
		if(this.offsetBottom) {
			this.offsetBottom = parseInt(this.offsetBottom);
		}
		
				
		//set rotation
		var rotateValue = this.node.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, 'rotate');
		if(rotateValue) {
			try {
				this._rotate = parseFloat(rotateValue);
			} catch (e) {
				this._rotate = 0;
			}
		} else {
			this._rotate = 0;
		}
		
		//anchors
		var anchorAttr = this.node.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, "anchors");
		if(anchorAttr) {
			anchorAttr = anchorAttr.replace("/,/g", " ");
			var anchors = anchorAttr.split(" ").without("");
			
			for(var i = 0; i < anchors.length; i++) {
				switch(anchors[i].toLowerCase()) {
					case "left":
						this.originAnchorLeft = this.anchorLeft = true;
						break;
					case "right":
						this.originAnchorRight = this.anchorRight = true;
						break;
					case "top":
						this.originAnchorTop = this.anchorTop = true;
						break;
					case "bottom":
						this.originAnchorBottom = this.anchorBottom = true;
						break;
				}
			}
		}
		
		//if no alignment defined, set default alignment
		if(!this._verticalAlign) { this._verticalAlign = 'bottom'; }
		if(!this._horizontalAlign) { this._horizontalAlign = 'left'; }

		var xValue = this.node.getAttributeNS(null, 'x');
		if(xValue) {
			this.oldX = this.x = parseFloat(xValue);
		} else {
			//TODO error
		}
		
		var yValue = this.node.getAttributeNS(null, 'y');
		if(yValue) {
			this.oldY = this.y = parseFloat(yValue);
		} else {
			//TODO error
		}
		
		//set initial text
		this.text(this.node.textContent);
	},
	
	/**
	 * Reset the anchor position to the original value
	 * which was specified in the stencil set
	 * 
	 */
	resetAnchorPosition: function(){
		this.anchorLeft = this.originAnchorLeft || false;
		this.anchorRight = this.originAnchorRight || false;
		this.anchorTop = this.originAnchorTop || false;
		this.anchorBottom = this.originAnchorBottom || false;
	},
	
	isOriginAnchorLeft: function(){ return this.originAnchorLeft || false; },
	isOriginAnchorRight: function(){ return this.originAnchorRight || false; },
	isOriginAnchorTop: function(){ return this.originAnchorTop || false; },
	isOriginAnchorBottom: function(){ return this.originAnchorBottom || false; },
	
	
	isAnchorLeft: function(){ return this.anchorLeft || false; },
	isAnchorRight: function(){ return this.anchorRight || false; },
	isAnchorTop: function(){ return this.anchorTop || false; },
	isAnchorBottom: function(){ return this.anchorBottom || false; },
	
	/**
	 * Returns the x coordinate
	 * @return {number}
	 */
	getX: function(){
		try {
			var x = this.node.x.baseVal.getItem(0).value;
			switch(this.horizontalAlign()){
				case "left": return x;
				case "center": return x - (this.getWidth()/2);
				case "right": return x - this.getWidth();
			}
			return this.node.getBBox().x;
		} catch(e){
			return this.x;
		}
	},
		
	setX: function(x){
		if (this.position)
			this.position.x = x;
		else 
			this.setOriginX(x);
	},
	
	
	/**
	 * Returns the y coordinate
	 * @return {number}
	 */
	getY: function(){
		try {
			return this.node.getBBox().y;
		} catch(e){
			return this.y;
		}
	},
	
	setY: function(y){
		if (this.position)
			this.position.y = y;
		else 
			this.setOriginY(y);
	},
	
	setOriginX: function(x){
		this.x = x;
	},
	
	setOriginY: function(y){
		this.y = y;
	},

	
	/**
	 * Returns the width of the label
	 * @return {number}
	 */
	getWidth: function(){
		try {
			try {
				var width, cn = this.node.childNodes;
				if (cn.length == 0 || !Ext.isGecko) {
					width = this.node.getBBox().width;
				} else {
					for (var i = 0, size = cn.length; i < size; ++i) {
						var w = cn[i].getComputedTextLength();
						if ("undefined" == typeof width || width < w) {
							width = w;
						}
					}
				}
				return width+(width%2==0?0:1);
			} catch (ee) {
				return this.node.getBBox().width;
			}
		} catch(e){
			return 0;
		}
	},
	
	getOriginUpperLeft: function(){
		var x = this.x, y = this.y;
		switch (this._horizontalAlign){
			case 'center' :
				x -= this.getWidth()/2;
				break;
			case 'right' :
				x -= this.getWidth();
				break;
		}
		switch (this._verticalAlign){
			case 'middle' :
				y -= this.getHeight()/2;
				break;
			case 'bottom' :
				y -= this.getHeight();
				break;
		}
		return {x:x, y:y};
	},
	
	/**
	 * Returns the height of the label
	 * @return {number}
	 */
	getHeight: function(){
		try {
			return this.node.getBBox().height;
		} catch(e){
			return 0;
		}
	},
	
	/**
	 * Returns the relative center position of the label 
	 * to its parent shape.
	 * @return {Object}
	 */
	getCenter: function(){
		var up = {x: this.getX(), y: this.getY()};
		up.x += this.getWidth()/2;
		up.y += this.getHeight()/2;
		return up;
	},
	
	/**
	 * Sets the position of a label relative to the parent.
	 * @param {Object} position
	 */
	setPosition: function(position){
		if (!position || position.x === undefined || position.y === undefined) {
			delete this.position;
		} else {
			this.position = position;
		}
		
		if (this.position){
			delete this._referencePoint;
			delete this.edgePosition;
		}
		
		this._isChanged = true;
		this.update();
	},
	
	/**
	 * Return the position
	 */
	getPosition: function(){
		return this.position;
	},
	
	setReferencePoint: function(ref){
		if (ref) {
			this._referencePoint = ref;
		} else {
			delete this._referencePoint;
		}
		if (this._referencePoint){
			delete this.position;
		}
	},
	
	getReferencePoint: function(){
		return this._referencePoint || undefined;
	},
	
	changed: function() {
		this._isChanged = true;
	},
	
	/**
	 * Register a callback which will be called if the label
	 * was rendered.
	 * @param {Object} fn
	 */
	registerOnChange: function(fn){
		if (!this.changeCallbacks){
			this.changeCallbacks = [];
		}
		if (fn instanceof Function && !this.changeCallbacks.include(fn)){
			this.changeCallbacks.push(fn);
		}
	},
	
	/**
	 * Unregister the callback for changes.
	 * @param {Object} fn
	 */
	unregisterOnChange: function(fn){
		if (this.changeCallbacks && fn instanceof Function && this.changeCallbacks.include(fn)){
			this.changeCallbacks = this.changeCallbacks.without(fn);
		}
	},
	
	/**
	 * Returns TRUE if the labe is currently in
	 * the update mechanism.
	 * @return {Boolean}
	 */
	isUpdating: function(){
		return !!this._isUpdating;	
	},
	
	
	getOriginEdgePosition: function(){
		return this.originEdgePosition;	
	},
	
	/**
	 * Returns the edgeposition.
	 * 
	 * @return {String} "starttop", "startmiddle", "startbottom", 
	 * "midtop", "midbottom", "endtop", "endbottom" or null
	 */
	getEdgePosition: function(){
		return this.edgePosition || null;	
	},
	
	/**
	 * Set the edge position, must be one of the valid
	 * edge positions (see getEdgePosition).
	 * Removes the reference point and the absolute position as well.
	 * 
	 * @param {Object} position
	 */
	setEdgePosition: function(position){
		if (["starttop", "startmiddle", "startbottom", 
			"midtop", "midbottom", "endtop", "endbottom"].include(position)){
			this.edgePosition = position;
			delete this.position;
			delete this._referencePoint;
		} else {
			delete this.edgePosition;
		}
	},
	
	/**
	 * Update the SVG text element.
	 */
	update: function(force) {
		
		var x = this.x, y = this.y;
		if (this.position){
			x = this.position.x;
			y = this.position.y;
		}
		x = Math.floor(x); y = Math.floor(y);
		
		if(this._isChanged || x !== this.oldX || y !== this.oldY || force === true) {
			if (this.isVisible) {
				this._isChanged = false;
				this._isUpdating = true;
				
				this.node.setAttributeNS(null, 'x', x);
				this.node.setAttributeNS(null, 'y', y);
				this.node.removeAttributeNS(null, "fill-opacity");
				
				//this.node.setAttributeNS(null, 'font-size', this._fontSize);
				//this.node.setAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, 'align', this._horizontalAlign + " " + this._verticalAlign);
				
				this.oldX = x;
				this.oldY = y;
				
				//set rotation
				if (!this.position && !this.getReferencePoint()) {
					if (this._rotate !== undefined) {
						if (this._rotationPoint) 
							this.node.setAttributeNS(null, 'transform', 'rotate(' + this._rotate + ' ' + Math.floor(this._rotationPoint.x) + ' ' + Math.floor(this._rotationPoint.y) + ')');
						else 
							this.node.setAttributeNS(null, 'transform', 'rotate(' + this._rotate + ' ' + Math.floor(x) + ' ' + Math.floor(y) + ')');
					}
				} else {
					this.node.removeAttributeNS(null, 'transform');
				}
				
				var textLines = this._text.split("\n");
				while (textLines.last() == "") 
					textLines.pop();
				
				
				if (this.node.ownerDocument) {
					// Only reset the tspans if the text 
					// has changed or has to be wrapped
					if (this.fitToElemId || this._textHasChanged){
						this.node.textContent = ""; // Remove content
						textLines.each((function(textLine, index){
							var tspan = this.node.ownerDocument.createElementNS(ORYX.CONFIG.NAMESPACE_SVG, 'tspan');
							tspan.textContent = textLine.trim();
							if (this.fitToElemId) {
								tspan.setAttributeNS(null, 'x', this.invisibleRenderPoint);
								tspan.setAttributeNS(null, 'y', this.invisibleRenderPoint);
							}
							
							/*
							 * Chrome's getBBox() method fails, if a text node contains an empty tspan element.
							 * So, we add a whitespace to such a tspan element.
							 */
							if(tspan.textContent === "") {
								tspan.textContent = " ";
							}
							
							//append tspan to text node
							this.node.appendChild(tspan);
						}).bind(this));
						delete this._textHasChanged;
						delete this.indices;
					}
					
					//Work around for Mozilla bug 293581
					if (this.isVisible && this.fitToElemId) {
						this.node.setAttributeNS(null, 'visibility', 'hidden');
					}
					
					if (this.fitToElemId) {
						window.setTimeout(this._checkFittingToReferencedElem.bind(this), 0);
					} else {
						window.setTimeout(this._positionText.bind(this), 0);
						//this._positionText();
					}
				}
			} else {
				this.node.textContent = "";
				//this.node.setAttributeNS(null, "fill-opacity", "0.2");
			}
		}
	},
	
	_checkFittingToReferencedElem: function() {
		try {
			var tspans = $A(this.node.getElementsByTagNameNS(ORYX.CONFIG.NAMESPACE_SVG, 'tspan'));
			
			//only do this in firefox 3. all other browsers do not support word wrapping!!!!!
			//if (/Firefox[\/\s](\d+\.\d+)/.test(navigator.userAgent) && new Number(RegExp.$1)>=3) {
				var newtspans = [];
				
				var refNode = this.node.ownerDocument.getElementById(this.fitToElemId);
				
				if (refNode) {
				
					var refbb = refNode.getBBox();
					
					var fontSize = this.getFontSize();
					
					for (var j = 0; j < tspans.length; j++) {
						var tspan = tspans[j];
						
						var textLength = this._getRenderedTextLength(tspan, undefined, undefined, fontSize);
						
						var refBoxLength = (this._rotate != 0 
								&& this._rotate % 180 != 0 
								&& this._rotate % 90 == 0 ? 
										refbb.height : refbb.width);
										
						if (textLength > refBoxLength) {
						
							var startIndex = 0;
							var lastSeperatorIndex = 0;
							
							var numOfChars = this.getTrimmedTextLength(tspan.textContent);
							for (var i = 0; i < numOfChars; i++) {
								var sslength = this._getRenderedTextLength(tspan, startIndex, i-startIndex, fontSize);
								
								if (sslength > refBoxLength - 2) {
									var newtspan = this.node.ownerDocument.createElementNS(ORYX.CONFIG.NAMESPACE_SVG, 'tspan');
									if (lastSeperatorIndex <= startIndex) {
										lastSeperatorIndex = (i == 0) ? i : i-1;
										newtspan.textContent = tspan.textContent.slice(startIndex, lastSeperatorIndex).trim();
										//lastSeperatorIndex = i;
									}
									else {
										newtspan.textContent = tspan.textContent.slice(startIndex, ++lastSeperatorIndex).trim();
									}
									
									newtspan.setAttributeNS(null, 'x', this.invisibleRenderPoint);
									newtspan.setAttributeNS(null, 'y', this.invisibleRenderPoint);
									
									//insert tspan to text node
									//this.node.insertBefore(newtspan, tspan);
									newtspans.push(newtspan);
									
									startIndex = lastSeperatorIndex;
									
								}
								else {
									var curChar = tspan.textContent.charAt(i);
									if (curChar == ' ' ||
									curChar == '-' ||
									curChar == "." ||
									curChar == "," ||
									curChar == ";" ||
									curChar == ":") {
										lastSeperatorIndex = i;
									}
								}
							}
							
							tspan.textContent = tspan.textContent.slice(startIndex).trim();
						}
						
						newtspans.push(tspan);
					}
					
					while (this.node.hasChildNodes()) 
						this.node.removeChild(this.node.childNodes[0]);
					
					while (newtspans.length > 0) {
						this.node.appendChild(newtspans.shift());
					}
				}
			//}
		} catch (e) {
			ORYX.Log.fatal("Error " + e);
		}
		
		window.setTimeout(this._positionText.bind(this), 0);
	},
	
	/**
	 * This is a work around method for Mozilla bug 293581.
	 * Before the method getComputedTextLength works, the text has to be rendered.
	 */
	_positionText: function() {
		try {
			//var tspans = this.node.getElementsByTagNameNS(ORYX.CONFIG.NAMESPACE_SVG, 'tspan');
			var tspans = this.node.childNodes;
			
			var fontSize = this.getFontSize(this.node); 
			
			var invalidTSpans = [];
			
			var x = this.x, y = this.y;
			if (this.position){
				x = this.position.x;
				y = this.position.y;
			}
			x = Math.floor(x); y = Math.floor(y);
			
			var i = 0, indic = []; // Cache indices if the _positionText is called again, before update is called 
			var is =(this.indices || $R(0,tspans.length-1).toArray());
			var length = is.length;
			is.each((function(index){
				if ("undefined" == typeof index){
					return;
				}
				
				var tspan = tspans[i++];
				
				if(tspan.textContent.trim() === "") {
					invalidTSpans.push(tspan);
				} else {
					//set vertical position
					var dy = 0;
					switch (this._verticalAlign) {
						case 'bottom':
							dy = -(length - index - 1) * (fontSize);
							break;
						case 'middle':
							dy = -(length / 2.0 - index - 1) * (fontSize);
							dy -= ORYX.CONFIG.LABEL_LINE_DISTANCE / 2;
							break;
						case 'top':
							dy = index * (fontSize);
							dy += fontSize;
							break;
					}
					
					tspan.setAttributeNS(null, 'dy', Math.floor(dy));
					
					tspan.setAttributeNS(null, 'x', x);
					tspan.setAttributeNS(null, 'y', y);
					indic.push(index);
				}
				
			}).bind(this));
			
			indic.length = tspans.length;
			this.indices = this.indices || indic;
			
			invalidTSpans.each(function(tspan) {
				this.node.removeChild(tspan)
			}.bind(this));
			
			//set horizontal alignment
			switch (this._horizontalAlign) {
				case 'left':
					this.node.setAttributeNS(null, 'text-anchor', 'start');
					break;
				case 'center':
					this.node.setAttributeNS(null, 'text-anchor', 'middle');
					break;
				case 'right':
					this.node.setAttributeNS(null, 'text-anchor', 'end');
					break;
			}
			
		} catch(e) {
			//console.log(e);
			this._isChanged = true;
		}
		
		
		if(this.isVisible) {
			this.node.removeAttributeNS(null, 'visibility');
		}		
		
		
		// Finished
		delete this._isUpdating;
		
		// Raise change event
		(this.changeCallbacks||[]).each(function(fn){
			fn.apply(fn);
		})
				
	},
	
	/**
	 * Returns the text length of the text content of an SVG tspan element.
	 * For all browsers but Firefox 3 the values are estimated.
	 * @param {TSpanSVGElement} tspan
	 * @param {int} startIndex Optional, for sub strings
	 * @param {int} endIndex Optional, for sub strings
	 */
	_getRenderedTextLength: function(tspan, startIndex, endIndex, fontSize) {
		//if (/Firefox[\/\s](\d+\.\d+)/.test(navigator.userAgent) && new Number(RegExp.$1) >= 3) {
			if(startIndex === undefined) {
//test string: abcdefghijklmnopqrstuvwxyzöäü,.-#+ 1234567890ßABCDEFGHIJKLMNOPQRSTUVWXYZ;:_'*ÜÄÖ!"§$%&/()=?[]{}|<>'~´`\^°µ@€²³
//				for(var i = 0; i < tspan.textContent.length; i++) {
//					console.log(tspan.textContent.charAt(i), tspan.getSubStringLength(i,1), this._estimateCharacterWidth(tspan.textContent.charAt(i))*(fontSize/14.0));
//				}
				return tspan.getComputedTextLength();
			} else {
				return tspan.getSubStringLength(startIndex, endIndex);
			}
		/*} else {
			if(startIndex === undefined) {
				return this._estimateTextWidth(tspan.textContent, fontSize);
			} else {
				return this._estimateTextWidth(tspan.textContent.substr(startIndex, endIndex).trim(), fontSize);
			}
		}*/
	},
	
	/**
	 * Estimates the text width for a string.
	 * Used for word wrapping in all browser but FF3.
	 * @param {Object} text
	 */
	_estimateTextWidth: function(text, fontSize) {
		var sum = 0.0;
		for(var i = 0; i < text.length; i++) {
			sum += this._estimateCharacterWidth(text.charAt(i));
		}
		
		return sum*(fontSize/14.0);
	},
	
	/**
	 * Estimates the width of a single character for font size 14.
	 * Used for word wrapping in all browser but FF3.
	 * @param {Object} character
	 */
	_estimateCharacterWidth: function(character) {
		for(var i = 0; i < this._characterSets.length; i++) {
 			if(this._characterSets[i].indexOf(character) >= 0) {
				return this._characterSetValues[i];
			}
 		}	
		return 9;
 	},
	
	getReferencedElementWidth: function() {
		var refNode = this.node.ownerDocument.getElementById(this.fitToElemId);
		
		if(refNode) {
			var refbb = refNode.getBBox();
				
			if(refbb) {
				return (this._rotate != 0 
						&& this._rotate % 180 != 0 
						&& this._rotate % 90 == 0 ? 
								refbb.height : refbb.width);
			}
		}
		
		return undefined;
	},
	
	/**
	 * If no parameter is provided, this method returns the current text.
	 * @param text {String} Optional. Replaces the old text with this one.
	 */
	text: function() {
		switch (arguments.length) {
			case 0:
				return this._text
				break;
			
			case 1:
				var oldText = this._text;
				if(arguments[0]) {
					this._text = arguments[0].toString();
				} else {
					this._text = "";
				}
				if(oldText !== this._text) {
					this._isChanged = true;
					this._textHasChanged = true;
				}
				break;
				
			default: 
				//TODO error
				break;
		}
	},
	
	getOriginVerticalAlign: function(){
		return this._originVerticalAlign;
	},
	
	verticalAlign: function() {
		switch(arguments.length) {
			case 0:
				return this._verticalAlign;
			case 1:
				if(['top', 'middle', 'bottom'].member(arguments[0])) {
					var oldValue = this._verticalAlign;
					this._verticalAlign = arguments[0];
					if(this._verticalAlign !== oldValue) {
						this._isChanged = true;
					}
				}
				break;
				
			default:
				//TODO error
				break;
		}
	},
	
	getOriginHorizontalAlign: function(){
		return this._originHorizontalAlign;
	},
	
	horizontalAlign: function() {
		switch(arguments.length) {
			case 0:
				return this._horizontalAlign;
			case 1:
				if(['left', 'center', 'right'].member(arguments[0])) {
					var oldValue = this._horizontalAlign;
					this._horizontalAlign = arguments[0];
					if(this._horizontalAlign !== oldValue) {
						this._isChanged = true;
					}	
				}
				break;
				
			default:
				//TODO error
				break;
		}
	},
	
	rotate: function() {
		switch(arguments.length) {
			case 0:
				return this._rotate;
			case 1:
				if (this._rotate != arguments[0]) {
					this._rotate = arguments[0];
					this._rotationPoint = undefined;
					this._isChanged = true;
				}
			case 2:
				if(this._rotate != arguments[0] ||
				   !this._rotationPoint ||
				   this._rotationPoint.x != arguments[1].x ||
				   this._rotationPoint.y != arguments[1].y) {
					this._rotate = arguments[0];
					this._rotationPoint = arguments[1];
					this._isChanged = true;
				}
				
		}
	},
	
	hide: function() {
		if(this.isVisible) {
			this.isVisible = false;
			this._isChanged = true;
		}
	},
	
	show: function() {
		if(!this.isVisible) {
			this.isVisible = true;
			this._isChanged = true;
		}
	},
	
	/**
	 * iterates parent nodes till it finds a SVG font-size
	 * attribute.
	 * @param {SVGElement} node
	 */
	getInheritedFontSize: function(node) {
		if(!node || !node.getAttributeNS)
			return;
			
		var attr = node.getAttributeNS(null, "font-size");
		if(attr) {
			return parseFloat(attr);
		} else if(!ORYX.Editor.checkClassType(node, SVGSVGElement)) {
			return this.getInheritedFontSize(node.parentNode);
		}
	},
	
	getFontSize: function(node) {
		var tspans = this.node.getElementsByTagNameNS(ORYX.CONFIG.NAMESPACE_SVG, 'tspan');
			
		//trying to get an inherited font-size attribute
		//NO CSS CONSIDERED!
		var fontSize = this.getInheritedFontSize(this.node); 
		
		if (!fontSize) {
			//because this only works in firefox 3, all other browser use the default line height
			if (tspans[0] && /Firefox[\/\s](\d+\.\d+)/.test(navigator.userAgent) && new Number(RegExp.$1) >= 3) {
				fontSize = tspans[0].getExtentOfChar(0).height;
			}
			else {
				fontSize = ORYX.CONFIG.LABEL_DEFAULT_LINE_HEIGHT;
			}
			
			//handling of unsupported method in webkit
			if (fontSize <= 0) {
				fontSize = ORYX.CONFIG.LABEL_DEFAULT_LINE_HEIGHT;
			}
		}
		
		if(fontSize)
			this.node.setAttribute("oryx:fontSize", fontSize);
		
		return fontSize;
	},
	
	/**
	 * Get trimmed text length for use with
	 * getExtentOfChar and getSubStringLength.
	 * @param {String} text
	 */
	getTrimmedTextLength: function(text) {
		text = text.strip().gsub('  ', ' ');
		
		var oldLength;
		do {
			oldLength = text.length;
			text = text.gsub('  ', ' ');
		} while (oldLength > text.length);

		return text.length;
	},
	
	/**
	 * Returns the offset from
	 * edge to the label which is 
	 * positioned under the edge
	 * @return {int}
	 */
	getOffsetBottom: function(){
		return this.offsetBottom;
	},
	
		
	/**
	 * Returns the offset from
	 * edge to the label which is 
	 * positioned over the edge
	 * @return {int}
	 */
	getOffsetTop: function(){
		return this.offsetTop;
	},
	
	/**
	 * 
	 * @param {Object} obj
	 */
	deserialize: function(obj, shape){
		if (obj && "undefined" != typeof obj.x && "undefined" != typeof obj.y){			
			this.setPosition({x:obj.x, y:obj.y});
			
			if ("undefined" != typeof obj.distance){
				var from = shape.dockers[obj.from];
				var to = shape.dockers[obj.to];
				if (from && to){
					this.setReferencePoint({
						dirty : true,
						distance : obj.distance,
						intersection : {x: obj.x, y: obj.y},
						orientation : obj.orientation,
						segment: {
							from: from,
							fromIndex: obj.from,
							fromPosition: from.bounds.center(),
							to: to,
							toIndex: obj.to,
							toPosition: to.bounds.center()
						}
					})
				}
			}
			
			if (obj.left) this.anchorLeft = true;
			if (obj.right) this.anchorRight = true;
			if (obj.top) this.anchorTop = true;
			if (obj.bottom) this.anchorBottom = true;
			if (obj.valign) this.verticalAlign(obj.valign);
			if (obj.align) this.horizontalAlign(obj.align);
			
		} else if (obj && "undefined" != typeof obj.edge){
			this.setEdgePosition(obj.edge);
		}
	},

	/**
	 * 
	 * @return {Object}
	 */
	serialize: function(){
		
		// On edge position
		if (this.getEdgePosition()){
			if (this.getOriginEdgePosition() !== this.getEdgePosition()){
				return {edge: this.getEdgePosition()};
			} else {
				return null;
			}
		}
		
		// On self defined position
		if (this.position){
			var pos = {x: this.position.x, y: this.position.y};
			if (this.isAnchorLeft() && this.isAnchorLeft() !== this.isOriginAnchorLeft()){
				pos.left = true;
			}
			if (this.isAnchorRight() && this.isAnchorRight() !== this.isOriginAnchorRight()){
				pos.right = true;
			}
			if (this.isAnchorTop() && this.isAnchorTop() !== this.isOriginAnchorTop()){
				pos.top = true;
			}
			if (this.isAnchorBottom() && this.isAnchorBottom() !== this.isOriginAnchorBottom()){
				pos.bottom = true;
			}
			
			if (this.getOriginVerticalAlign() !== this.verticalAlign()){
				pos.valign = this.verticalAlign();
			}
			if (this.getOriginHorizontalAlign() !== this.horizontalAlign()){
				pos.align = this.horizontalAlign();
			}
			
			return pos;
		}
		
		// On reference point which is interesting for edges
		if (this.getReferencePoint()){
			var ref = this.getReferencePoint();
			return {
				distance : ref.distance,
				x : ref.intersection.x,
				y : ref.intersection.y,
				from : ref.segment.fromIndex,
				to : ref.segment.toIndex,
				orientation : ref.orientation,
				valign : this.verticalAlign(),
				align : this.horizontalAlign()
			}
		}
		return null;
	},
	
	toString: function() { return "Label " + this.id }
 });/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.Math) {ORYX.Core.Math = {};}
	
/**
 * Calculate the middle point between two given points
 * @param {x:double, y:double} point1
 * @param {x:double, y:double} point2
 * @return the middle point
 */
ORYX.Core.Math.midPoint = function(point1, point2) {
	return 	{
				x: (point1.x + point2.x) / 2.0,
				y: (point1.y + point2.y) / 2.0
			}
}
			
/**
 * Returns a TRUE if the point is over a line (defined by
 * point1 and point 2). In Addition a threshold can be set,
 * which defines the weight of those line.
 * 
 * @param {int} pointX - Point X
 * @param {int} pointY - Point Y
 * @param {int} lPoint1X - Line first Point X
 * @param {int} lPoint1Y - Line first Point Y
 * @param {int} lPoint2X - Line second Point X
 * @param {int} lPoint2Y - Line second Point y
 * @param {int} offset {optional} - maximal distance to line
 * @class ORYX.Core.Math.prototype
 */
ORYX.Core.Math.isPointInLine = function (pointX, pointY, lPoint1X, lPoint1Y, lPoint2X, lPoint2Y, offset) {

	offset = offset ? Math.abs(offset) : 1;
	
	// Check if the edge is vertical
	if(Math.abs(lPoint1X-lPoint2X)<=offset && Math.abs(pointX-lPoint1X)<=offset && pointY-Math.max(lPoint1Y, lPoint2Y)<=offset && Math.min(lPoint1Y, lPoint2Y)-pointY<=offset) {
		return true
	}

	// Check if the edge is horizontal
	if(Math.abs(lPoint1Y-lPoint2Y)<=offset && Math.abs(pointY-lPoint1Y)<=offset && pointX-Math.max(lPoint1X, lPoint2X)<=offset && Math.min(lPoint1X, lPoint2X)-pointX<=offset) {
		return true
	}

	if(pointX > Math.max(lPoint1X, lPoint2X) || pointX < Math.min(lPoint1X, lPoint2X)) {
		return false
	}

	if(pointY > Math.max(lPoint1Y, lPoint2Y) || pointY < Math.min(lPoint1Y, lPoint2Y)) {
		return false
	}
			
	var s = (lPoint1Y - lPoint2Y) / (lPoint1X - lPoint2X);
	
	return 	Math.abs(pointY - ((s * pointX) + lPoint1Y - s * lPoint1X)) < offset
}

/**
 * Get a boolean if the point is in the polygone
 * 
 */
ORYX.Core.Math.isPointInEllipse = function (pointX, pointY, cx, cy, rx, ry) {

	if(cx === undefined || cy === undefined || rx === undefined || ry === undefined) {
		throw "ORYX.Core.Math.isPointInEllipse needs a ellipse with these properties: x, y, radiusX, radiusY"
	} 
	
    var tx = (pointX - cx) / rx;
    var ty = (pointY - cy) / ry;
	
    return tx * tx + ty * ty < 1.0;
}
	
/**
 * Get a boolean if the point is in the polygone
 * @param {int} pointX
 * @param {int} pointY
 * @param {[int]} Cornerpoints of the Polygone (x,y,x,y,...)
 */
ORYX.Core.Math.isPointInPolygone = function(pointX, pointY, polygone){

	if (arguments.length < 3) {
		throw "ORYX.Core.Math.isPointInPolygone needs two arguments"
	}
	
	var lastIndex = polygone.length-1;
	
	if (polygone[0] !== polygone[lastIndex - 1] || polygone[1] !== polygone[lastIndex]) {
		polygone.push(polygone[0]);
		polygone.push(polygone[1]);
	}
	
	var crossings = 0;

	var x1, y1, x2, y2, d;
	
    for (var i = 0; i < polygone.length - 3; ) {
        x1=polygone[i];
        y1=polygone[++i];
        x2=polygone[++i];
        y2=polygone[i+1];
        d=(pointY - y1) * (x2 - x1) - (pointX - x1) * (y2 - y1);

        if ((y1 >= pointY) != (y2 >= pointY)) {
            crossings += y2 - y1 >= 0 ? d >= 0 : d <= 0;
        }
        if (!d && Math.min(x1,x2) <= pointX && pointX <= Math.max(x1,x2)
            && Math.min(y1,y2) <= pointY && pointY <= Math.max(y1,y2)) {
            return true;
        }
    }
	return (crossings%2)?true:false;
}

/**
 *	Calculates the distance between a point and a line. It is also testable, if 
 *  the distance orthogonal to the line, matches the segment of the line.
 *  
 *  @param {float} lineP1
 *  	The starting point of the line segment
 *  @param {float} lineP2
 *  	The end point of the line segment
 *  @param {Point} point
 *  	The point to calculate the distance to.
 *  @param {boolean} toSegmentOnly
 *  	Flag to signal if only the segment of the line shell be evaluated.
 */
ORYX.Core.Math.distancePointLinie = function(
									lineP1, 
									lineP2, 
									point, 
									toSegmentOnly) {
	
	var intersectionPoint = 
				ORYX.Core.Math.getPointOfIntersectionPointLine(lineP1, 
																lineP2, 
																point, 
																toSegmentOnly);
	
	if(!intersectionPoint) {
		return null;
	}
	
	return ORYX.Core.Math.getDistancePointToPoint(point, intersectionPoint);
};

/**
 * Calculates the distance between two points.
 * 
 * @param {point} point1
 * @param {point} point2
 */
ORYX.Core.Math.getDistancePointToPoint = function(point1, point2) {
	return Math.sqrt(Math.pow(point1.x - point2.x, 2) + Math.pow(point1.y - point2.y, 2));
};

/**
 * Calculates the relative distance of a point which is between two other points.
 * 
 * @param {point} between1
 * @param {point} between2
 * @param {point} point
 */
ORYX.Core.Math.getDistanceBetweenTwoPoints = function(between1, between2, point) {
	return 	ORYX.Core.Math.getDistancePointToPoint(point, between1) /
			ORYX.Core.Math.getDistancePointToPoint(between1, between2);
};


/**
 * Returns true, if the point is of the left hand
 * side of the regarding the line.
 * 
 * @param {point} lineP1 Line first point
 * @param {point} lineP2 Line second point
 * @param {point} point
 */
ORYX.Core.Math.pointIsLeftOfLine = function(lineP1, lineP2, point){
	
	var vec1 = ORYX.Core.Math.getVector(lineP1, lineP2);
	var vec2 = ORYX.Core.Math.getVector(lineP1, point);
	// if the cross produkt is more than 0
	return ((vec1.x*vec2.y) - (vec2.x*vec1.y)) > 0
};

/**
 * Calculates the a point which is relatively between two other points.
 * 
 * @param {point} point1
 * @param {point} point2
 * @param {number} relative Relative which is between 0 and 1
 */
ORYX.Core.Math.getPointBetweenTwoPoints = function(point1, point2, relative) {
	relative = Math.max(Math.min(relative || 0, 1), 0);
	
	if (relative === 0){
		return point1;
	} else if (relative === 1){
		return point2;
	}
	
	return {
		x: point1.x + ((point2.x - point1.x) * relative),
		y: point1.y + ((point2.y - point1.y) * relative)
	}
};


/**
 * Returns the vector of the both points
 *
 * @param {point} point1
 * @param {point} point2
 */
ORYX.Core.Math.getVector = function(point1, point2){
	return {
		x: point2.x - point1.x,
		y: point2.y - point1.y
	}
}

/**
 * Returns the an identity vector of the given vector, 
 * which has the length ot one.
 *
 * @param {point} vector
 * or 
 * @param {point} point1
 * @param {point} point2
 */
ORYX.Core.Math.getIdentityVector = function(vector){
	
	if (arguments.length == 2){
		vector = ORYX.Core.Math.getVector(arguments[0], arguments[1]);
	}
	
	var length = Math.sqrt((vector.x*vector.x)+(vector.y*vector.y))
	return {
		x: vector.x / (length || 1),
		y: vector.y / (length || 1)
	}
}


ORYX.Core.Math.getOrthogonalIdentityVector = function(point1, point2){
	var vec = arguments.length == 1 ? point1 : ORYX.Core.Math.getIdentityVector(point1, point2);
	return {
		x: vec.y,
		y: -vec.x
	}
}


/**
 * Returns the intersection point of a line and a point that defines a line
 * orthogonal to the given line.
 * 
 *  @param {float} lineP1
 *  	The starting point of the line segment
 *  @param {float} lineP2
 *  	The end point of the line segment
 *  @param {Point} point
 *  	The point to calculate the distance to.
 *  @param {boolean} onSegmentOnly
 *  	Flag to signal if only the segment of the line shell be evaluated.
 */
ORYX.Core.Math.getPointOfIntersectionPointLine = function(
													lineP1, 
													lineP2, 
													point, 
													onSegmentOnly) {

	/* 
	 * [P3 - P1 - u(P2 - P1)] dot (P2 - P1) = 0
	 * u =((x3-x1)(x2-x1)+(y3-y1)(y2-y1))/(p2-p1)²
	 */
	var denominator = Math.pow(lineP2.x - lineP1.x, 2) 
						+ Math.pow(lineP2.y - lineP1.y, 2);
	if(denominator == 0) {
		return undefined;
	}
	
	var u = ((point.x - lineP1.x) * (lineP2.x - lineP1.x)  
			+ (point.y - lineP1.y) * (lineP2.y - lineP1.y))
			/ denominator;
			
	if(onSegmentOnly) {
		if (!(0 <= u && u <= 1)) {
			return undefined;
		}
	}
	
	pointOfIntersection = new Object();
	pointOfIntersection.x = lineP1.x + u * (lineP2.x - lineP1.x);
	pointOfIntersection.y = lineP1.y + u * (lineP2.y - lineP1.y);	
	
	return pointOfIntersection;												
};

/**
 * Translated the point with the given matrix.
 * @param {Point} point
 * @param {Matrix} matrix 
 * @return {Object} Includes x, y
 */
ORYX.Core.Math.getTranslatedPoint = function(point, matrix){
	var x = matrix.a*point.x+matrix.c*point.y+matrix.e*1;
	var y = matrix.b*point.x+matrix.d*point.y+matrix.f*1;
    return {x:x, y:y}
}


/**
 * Returns the inverse matrix of the given SVG transformation matrix
 * @param {SVGTransformationMatrix} matrix
 * @return {Matrix}
 */
ORYX.Core.Math.getInverseMatrix = function(matrix){

	var det = ORYX.Core.Math.getDeterminant(matrix), m = matrix;
	// +-     -+
	// | a c e |
	// | b d f |
	// | 0 0 1 |
	// +-     -+
	return {
		a: det * ((m.d*1)-(m.f*0)),
		b: det * ((m.f*0)-(m.b*1)),
		c: det * ((m.e*0)-(m.c*1)),
		d: det * ((m.a*1)-(m.e*0)),
		e: det * ((m.c*m.f)-(m.e*m.d)),
		f: det * ((m.e*m.b)-(m.a*m.f))
	}
}

/**
 * Returns the determinant of the svg transformation matrix
 * @param {SVGTranformationMatrix} matrix
 * @return {Number}
 *
 */
ORYX.Core.Math.getDeterminant = function(m){
	// a11a22a33+a12a23a31+a13a21a32-a13a22a31-a12a21a33-a11a23a32
	return (m.a*m.d*1)+(m.c*m.f*0)+(m.e*m.b*0)-(m.e*m.d*0)-(m.c*m.b*1)-(m.a*m.f*0);
}

/**
 * Returns the bounding box of the given node. Translates the 
 * origin bounding box with the tranlation matrix.
 * @param {SVGElement} node
 * @return {Object} Includes x, y, width, height
 */
ORYX.Core.Math.getTranslatedBoundingBox = function(node){
	var matrix = node.getCTM();
	var bb = node.getBBox();
	var ul = ORYX.Core.Math.getTranslatedPoint({x:bb.x, y:bb.y}, matrix);
	var ll = ORYX.Core.Math.getTranslatedPoint({x:bb.x, y:bb.y+bb.height}, matrix);
	var ur = ORYX.Core.Math.getTranslatedPoint({x:bb.x+bb.width, y:bb.y}, matrix);
	var lr = ORYX.Core.Math.getTranslatedPoint({x:bb.x+bb.width, y:bb.y+bb.height}, matrix);
	
	var minPoint = {
	    x: Math.min(ul.x, ll.x, ur.x, lr.x),
	    y: Math.min(ul.y, ll.y, ur.y, lr.y)
	}
	var maxPoint = {
	    x: Math.max(ul.x, ll.x, ur.x, lr.x),
	    y: Math.max(ul.y, ll.y, ur.y, lr.y)
	}
	return {
	    x: minPoint.x,
	    y: minPoint.y,
	    width: maxPoint.x - minPoint.x,
	    height: maxPoint.y - minPoint.y
	}
};


/**
 * Returns the angle of the given line, which is representated by the two points
 * @param {Point} p1
 * @param {Point} p2
 * @return {Number} 0 <= x <= 359.99999
 */
ORYX.Core.Math.getAngle = function(p1, p2){
	if(p1.x == p2.x && p1.y == p2.y)
		return 0;

	var angle = Math.asin(Math.sqrt(Math.pow(p1.y-p2.y, 2))
				/(Math.sqrt(Math.pow(p2.x-p1.x, 2)+Math.pow(p1.y-p2.y, 2))))
				*180/Math.PI;
	
	if(p2.x >= p1.x && p2.y <= p1.y)
		return angle;
	else if(p2.x < p1.x && p2.y <= p1.y)
		return 180 - angle;
	else if(p2.x < p1.x && p2.y > p1.y)
		return 180 + angle;
	else
		return 360 - angle;
};


/**
 * Implementation of the cohen-sutherland algorithm
 */
new function(){
	
	var RIGHT = 2, TOP = 8,  BOTTOM = 4, LEFT = 1;
	
 	function computeOutCode (x, y, xmin, ymin, xmax, ymax) {
		var code = 0;
		if (y > ymax)
		    code |= TOP;
		else if (y < ymin)
		    code |= BOTTOM;
		if (x > xmax)
		    code |= RIGHT;
		else if (x < xmin)
		    code |= LEFT;
		return code;
	}
	
	/**
	 * Returns TRUE if the rectangle is over the edge and has intersection points or includes it
	 * @param {Object} x1 Point A of the line
	 * @param {Object} y1
	 * @param {Object} x2 Point B of the line
	 * @param {Object} y2
	 * @param {Object} xmin Point A of the rectangle
	 * @param {Object} ymin
	 * @param {Object} xmax Point B of the rectangle
	 * @param {Object} ymax
	 */
	ORYX.Core.Math.isRectOverLine = function(x1, y1, x2, y2, xmin, ymin, xmax, ymax){
		return !!ORYX.Core.Math.clipLineOnRect.apply(ORYX.Core.Math, arguments);
	}
	
	/**
	 * Returns the clipped line on the given rectangle. If there is 
	 * no intersection, it will return NULL.
	 *  
	 * @param {Object} x1 Point A of the line
	 * @param {Object} y1
	 * @param {Object} x2 Point B of the line
	 * @param {Object} y2
	 * @param {Object} xmin Point A of the rectangle
	 * @param {Object} ymin
	 * @param {Object} xmax Point B of the rectangle
	 * @param {Object} ymax
	 */
	ORYX.Core.Math.clipLineOnRect = function(x1, y1, x2, y2, xmin, ymin, xmax, ymax){
        //Outcodes for P0, P1, and whatever point lies outside the clip rectangle
        var outcode0, outcode1, outcodeOut, hhh = 0;
        var accept = false, done = false;
 
        //compute outcodes
        outcode0 = computeOutCode(x1, y1, xmin, ymin, xmax, ymax);
        outcode1 = computeOutCode(x2, y2, xmin, ymin, xmax, ymax);
 
        do {
            if ((outcode0 | outcode1) == 0 ){
                accept = true;
                done = true;
            } else if ( (outcode0 & outcode1) > 0 ) {
                done = true;
            } else {
                //failed both tests, so calculate the line segment to clip
                //from an outside point to an intersection with clip edge
                var x = 0, y = 0;
                //At least one endpoint is outside the clip rectangle; pick it.
                outcodeOut = outcode0 != 0 ? outcode0: outcode1;
                //Now find the intersection point;
                //use formulas y = y0 + slope * (x - x0), x = x0 + (1/slope)* (y - y0)
                if ( (outcodeOut & TOP) > 0 ) {
                    x = x1 + (x2 - x1) * (ymax - y1)/(y2 - y1);
                    y = ymax;
                } else if ((outcodeOut & BOTTOM) > 0 ) {
                    x = x1 + (x2 - x1) * (ymin - y1)/(y2 - y1);
                    y = ymin;
                } else if ((outcodeOut & RIGHT)> 0) {
                    y = y1 + (y2 - y1) * (xmax - x1)/(x2 - x1);
                    x = xmax;
                } else if ((outcodeOut & LEFT) > 0) {
                    y = y1 + (y2 - y1) * (xmin - x1)/(x2 - x1);
                    x = xmin;
                }
				
                //Now we move outside point to intersection point to clip
                //and get ready for next pass.
                if (outcodeOut == outcode0) {
                    x1 = x;
                    y1 = y;
                    outcode0 = computeOutCode (x1, y1, xmin, ymin, xmax, ymax);
                } else {
                    x2 = x;
                    y2 = y;
                    outcode1 = computeOutCode (x2, y2, xmin, ymin, xmax, ymax);
                }
            }
            hhh ++;
        } while (done  != true && hhh < 5000);
 
        if(accept) {
            return {a:{x:x1, y:y1}, b:{x:x2, y:y2}};
        }
		return null;
    }
}();


/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespace
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.StencilSet) {ORYX.Core.StencilSet = {};}

/**
 * Class Stencil
 * uses Prototpye 1.5.0
 * uses Inheritance
 * 
 * This class represents one stencil of a stencil set.
 */
ORYX.Core.StencilSet.Stencil = {

	/**
	 * Constructor
	 */
	construct: function(jsonStencil, namespace, source, stencilSet, propertyPackages, defaultPosition) {
		arguments.callee.$.construct.apply(this, arguments); // super();
		
		// check arguments and set defaults.
		if(!jsonStencil) throw "Stencilset seems corrupt.";
		if(!namespace) throw "Stencil does not provide namespace.";
		if(!source) throw "Stencil does not provide SVG source.";
		if(!stencilSet) throw "Fatal internal error loading stencilset.";
		//if(!propertyPackages) throw "Fatal internal error loading stencilset.";
		
		this._source = source;
		this._jsonStencil = jsonStencil;
		this._stencilSet = stencilSet;
		this._namespace = namespace;
		this._propertyPackages = propertyPackages;
		
		if(defaultPosition && !this._jsonStencil.position) 
			this._jsonStencil.position = defaultPosition;
		
		this._view;
		this._properties = new Hash();

		// check stencil consistency and set defaults.
		/*with(this._jsonStencil) {
			
			if(!type) throw "Stencil does not provide type.";
			if((type != "edge") && (type != "node"))
				throw "Stencil type must be 'edge' or 'node'.";
			if(!id || id == "") throw "Stencil does not provide valid id.";
			if(!title || title == "")
				throw "Stencil does not provide title";
			if(!description) { description = ""; };
			if(!groups) { groups = []; }
			if(!roles) { roles = []; }

			// add id of stencil to its roles
			roles.push(id);
		}*/
		
		//init all JSON values
		if(!this._jsonStencil.type || !(this._jsonStencil.type === "edge" || this._jsonStencil.type === "node")) {
			throw "ORYX.Core.StencilSet.Stencil(construct): Type is not defined.";
		}
		if(!this._jsonStencil.id || this._jsonStencil.id === "") {
			throw "ORYX.Core.StencilSet.Stencil(construct): Id is not defined.";
		}
		if(!this._jsonStencil.title || this._jsonStencil.title === "") {
			throw "ORYX.Core.StencilSet.Stencil(construct): Title is not defined.";
		}

		if(!this._jsonStencil.description) { this._jsonStencil.description = ""; };
		if(!this._jsonStencil.groups) { this._jsonStencil.groups = []; }
		if(!this._jsonStencil.roles) { this._jsonStencil.roles = []; }
		
		//add id of stencil to its roles
		this._jsonStencil.roles.push(this._jsonStencil.id);

		//prepend namespace to each role
		this._jsonStencil.roles.each((function(role, index) {
			this._jsonStencil.roles[index] = namespace + role;
		}).bind(this));

		//delete duplicate roles
		this._jsonStencil.roles = this._jsonStencil.roles.uniq();

		//make id unique by prepending namespace of stencil set
		this._jsonStencil.id = namespace + this._jsonStencil.id;

		this.postProcessProperties();
		
		// init serialize callback
		if(!this._jsonStencil.serialize) {
			this._jsonStencil.serialize = {};
			//this._jsonStencil.serialize = function(shape, data) { return data;};
		}
		
		// init deserialize callback
		if(!this._jsonStencil.deserialize) {
			this._jsonStencil.deserialize = {};
			//this._jsonStencil.deserialize = function(shape, data) { return data;};
		}
		
		// init layout callback
		if(!this._jsonStencil.layout) {
			this._jsonStencil.layout = []
			//this._jsonStencil.layout = function() {return true;}
		}
		
		//TODO does not work correctly, if the url does not exist
		//How to guarantee that the view is loaded correctly before leaving the constructor???
		var url = source + "view/" + jsonStencil.view;
		// override content type when this is webkit.
		
		/*
		if(Prototype.Browser.WebKit) {
			
			var req = new XMLHttpRequest;
			req.open("GET", url, false);
			req.overrideMimeType('text/xml');
			req.send(null);
			req.onload = (function() { _loadSVGOnSuccess(req.responseXML); }).bind(this);

		// else just do it.
		} else
		*/
		
		if(this._jsonStencil.view.trim().match(/</)) {
			var parser	= new DOMParser();		
			var xml 	= parser.parseFromString( this._jsonStencil.view ,"text/xml");
			
			//check if result is a SVG document
			if( ORYX.Editor.checkClassType( xml.documentElement, SVGSVGElement )) {
	
				this._view = xml.documentElement;
				
				//updating link to images
				var imageElems = this._view.getElementsByTagNameNS("http://www.w3.org/2000/svg", "image");
				$A(imageElems).each((function(imageElem) {
					var link = imageElem.getAttributeNodeNS("http://www.w3.org/1999/xlink", "href");
					if(link && link.value.indexOf("://") == -1) {
						link.textContent = this._source + "view/" + link.value;
					}
				}).bind(this));
			} else {
				throw "ORYX.Core.StencilSet.Stencil(_loadSVGOnSuccess): The response is not a SVG document."
			}
		} else {
			new Ajax.Request(
				url, {
					asynchronous:false, method:'get',
					onSuccess:this._loadSVGOnSuccess.bind(this),
					onFailure:this._loadSVGOnFailure.bind(this)
			});
		}
	},

	postProcessProperties: function() {

		// add image path to icon
		if(this._jsonStencil.icon && this._jsonStencil.icon.indexOf("://") === -1) {
			this._jsonStencil.icon = this._source + "icons/" + this._jsonStencil.icon;
		} else {
			this._jsonStencil.icon = "";
		}
	
		// init property packages
		if(this._jsonStencil.propertyPackages && this._jsonStencil.propertyPackages instanceof Array) {
			this._jsonStencil.propertyPackages.each((function(ppId) {
				var pp = this._propertyPackages[ppId];
				
				if(pp) {
					pp.each((function(prop){
						var oProp = new ORYX.Core.StencilSet.Property(prop, this._namespace, this);
						this._properties[oProp.prefix() + "-" + oProp.id()] = oProp;
					}).bind(this));
				}
			}).bind(this));
		}
		
		// init properties
		if(this._jsonStencil.properties && this._jsonStencil.properties instanceof Array) {
			this._jsonStencil.properties.each((function(prop) {
				var oProp = new ORYX.Core.StencilSet.Property(prop, this._namespace, this);
				this._properties[oProp.prefix() + "-" + oProp.id()] = oProp;
			}).bind(this));
		}
		

	},

	/**
	 * @param {ORYX.Core.StencilSet.Stencil} stencil
	 * @return {Boolean} True, if stencil has the same namespace and type.
	 */
	equals: function(stencil) {
		return (this.id() === stencil.id());
	},

	stencilSet: function() {
		return this._stencilSet;
	},

	type: function() {
		return this._jsonStencil.type;
	},

	namespace: function() {
		return this._namespace;
	},

	id: function() {
		return this._jsonStencil.id;
	},
    
    idWithoutNs: function(){
        return this.id().replace(this.namespace(),"");
    },

	title: function() {
		return ORYX.Core.StencilSet.getTranslation(this._jsonStencil, "title");
	},

	description: function() {
		return ORYX.Core.StencilSet.getTranslation(this._jsonStencil, "description");
	},
	
	groups: function() {
		return ORYX.Core.StencilSet.getTranslation(this._jsonStencil, "groups");
	},
	
	position: function() {
		return (isNaN(this._jsonStencil.position) ? 0 : this._jsonStencil.position);
	},

	view: function() {
		return this._view.cloneNode(true) || this._view;
	},

	icon: function() {
		return this._jsonStencil.icon;
	},
	
	fixedAspectRatio: function() {
		return this._jsonStencil.fixedAspectRatio === true;
	},
	
	hasMultipleRepositoryEntries: function() {
		return (this.getRepositoryEntries().length > 0);
	},
	
	getRepositoryEntries: function() {
		return (this._jsonStencil.repositoryEntries) ?
			$A(this._jsonStencil.repositoryEntries) : $A([]);
	},
	
	properties: function() {
		return this._properties.values();
	},

	property: function(id) {
		return this._properties[id];
	},

	roles: function() {
		return this._jsonStencil.roles;
	},
	
	defaultAlign: function() {
		if(!this._jsonStencil.defaultAlign)
			return "east";
		return this._jsonStencil.defaultAlign;
	},

	serialize: function(shape, data) {
		return this._jsonStencil.serialize;
		//return this._jsonStencil.serialize(shape, data);
	},
	
	deserialize: function(shape, data) {
		return this._jsonStencil.deserialize;
		//return this._jsonStencil.deserialize(shape, data);
	},
	
	// in which case is targetShape used?
//	layout: function(shape, targetShape) {
//		return this._jsonStencil.layout(shape, targetShape);
//	},
	// layout property to store events for layouting in plugins
	layout: function(shape) {
		return this._jsonStencil.layout
	},
	
	addProperty: function(property, namespace) {
		if(property && namespace) {
			var oProp = new ORYX.Core.StencilSet.Property(property, namespace, this);
			this._properties[oProp.prefix() + "-" + oProp.id()] = oProp;
		}
	},
	
	removeProperty: function(propertyId) {
		if(propertyId) {
			var oProp = this._properties.values().find(function(prop) {
				return (propertyId == prop.id());
			});
			if(oProp)
				delete this._properties[oProp.prefix() + "-" + oProp.id()];
		}
	},

	_loadSVGOnSuccess: function(result) {
		
		var xml = null;
		
		/*
		 * We want to get a dom object for the requested file. Unfortunately,
		 * safari has some issues here. this is meant as a fallback for all
		 * browsers that don't recognize the svg mimetype as XML but support
		 * data: urls on Ajax calls.
		 */
		
		// responseXML != undefined.
		// if(!(result.responseXML))
		
			// get the dom by data: url.
			// xml = _evenMoreEvilHack(result.responseText, 'text/xml');
		
		// else
		
			// get it the usual way.
			xml = result.responseXML;

		//check if result is a SVG document
		if( ORYX.Editor.checkClassType( xml.documentElement, SVGSVGElement )) {

			this._view = xml.documentElement;
			
			//updating link to images
			var imageElems = this._view.getElementsByTagNameNS("http://www.w3.org/2000/svg", "image");
			$A(imageElems).each((function(imageElem) {
				var link = imageElem.getAttributeNodeNS("http://www.w3.org/1999/xlink", "href");
				if(link && link.value.indexOf("://") == -1) {
					link.textContent = this._source + "view/" + link.value;
				}
			}).bind(this));
		} else {
			throw "ORYX.Core.StencilSet.Stencil(_loadSVGOnSuccess): The response is not a SVG document."
		}
	},

	_loadSVGOnFailure: function(result) {
		throw "ORYX.Core.StencilSet.Stencil(_loadSVGOnFailure): Loading SVG document failed."
	},

	toString: function() { return "Stencil " + this.title() + " (" + this.id() + ")"; }
};

ORYX.Core.StencilSet.Stencil = Clazz.extend(ORYX.Core.StencilSet.Stencil);

/**
 * Transform a string into an xml document, the Safari way, as long as
 * the nightlies are broken. Even more evil version.
 * @param {Object} str
 * @param {Object} contentType
 */
function _evenMoreEvilHack(str, contentType) {
	
	/*
	 * This even more evil hack was taken from
	 * http://web-graphics.com/mtarchive/001606.php#chatty004999
	 */
	
	if (window.ActiveXObject) {
		var d = new ActiveXObject("MSXML.DomDocument");
		d.loadXML(str);
		return d;
	} else if (window.XMLHttpRequest) {
		var req = new XMLHttpRequest;
		req.open("GET", "data:" + (contentType || "application/xml") +
						";charset=utf-8," + encodeURIComponent(str), false);
		if (req.overrideMimeType) {
			req.overrideMimeType(contentType);
		}
		req.send(null);
		return req.responseXML;
	}
}

/**
 * Transform a string into an xml document, the Safari way, as long as
 * the nightlies are broken.
 * @param {Object} result the xml document object.
 */
function _evilSafariHack(serializedXML) {
	
	/*
	 *  The Dave way. Taken from:
	 *  http://web-graphics.com/mtarchive/001606.php
	 *  
	 *  There is another possibility to parse XML in Safari, by implementing
	 *  the DOMParser in javascript. However, in the latest nightlies of
	 *  WebKit, DOMParser is already available, but still buggy. So, this is
	 *  the best compromise for the time being.
	 */		
	
	var xml = serializedXML;
	var url = "data:text/xml;charset=utf-8," + encodeURIComponent(xml);
	var dom = null;
	
	// your standard AJAX stuff
	var req = new XMLHttpRequest();
	req.open("GET", url);
	req.onload = function() { dom = req.responseXML; }
	req.send(null);
	
	return dom;
}
	/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/
/**
 * Init namespace
 */
if (!ORYX) {
    var ORYX = {};
}
if (!ORYX.Core) {
    ORYX.Core = {};
}
if (!ORYX.Core.StencilSet) {
    ORYX.Core.StencilSet = {};
}

/**
 * Class Property
 * uses Prototpye 1.5.0
 * uses Inheritance
 */
ORYX.Core.StencilSet.Property = Clazz.extend({

    /**
     * Constructor
     */
    construct: function(jsonProp, namespace, stencil){
        arguments.callee.$.construct.apply(this, arguments);
        
        this._jsonProp = jsonProp || ORYX.Log.error("Parameter jsonProp is not defined.");
        this._namespace = namespace || ORYX.Log.error("Parameter namespace is not defined.");
        this._stencil = stencil || ORYX.Log.error("Parameter stencil is not defined.");
        
        this._items = {};
        this._complexItems = {};
        
        jsonProp.id = jsonProp.id || ORYX.Log.error("ORYX.Core.StencilSet.Property(construct): Id is not defined.");
		jsonProp.id = jsonProp.id.toLowerCase();
		
        if (!jsonProp.type) {
            ORYX.Log.info("Type is not defined for stencil '%0', id '%1'. Falling back to 'String'.", stencil, jsonProp.id);
            jsonProp.type = "string";
        }
        else {
            jsonProp.type = jsonProp.type.toLowerCase();
        }
        
        jsonProp.prefix = jsonProp.prefix || "oryx";
        jsonProp.title = jsonProp.title || "";
        jsonProp.value = jsonProp.value || "";
        jsonProp.description = jsonProp.description || "";
        jsonProp.readonly = jsonProp.readonly || false;
        jsonProp.optional = jsonProp.optional !== false;
        
        //init refToView
        if (this._jsonProp.refToView) {
            if (!(this._jsonProp.refToView instanceof Array)) {
                this._jsonProp.refToView = [this._jsonProp.refToView];
            }
        }
        else {
            this._jsonProp.refToView = [];
        }
        
		var globalMin = this.getMinForType(jsonProp.type);
        if (jsonProp.min === undefined || jsonProp.min === null) {
            jsonProp.min =globalMin;
        } else if (jsonProp.min < globalMin) {
			jsonProp.min = globalMin;
		}
        
		var globalMax = this.getMaxForType(jsonProp.type);
        if (jsonProp.max === undefined || jsonProp.max === null) {
            jsonProp.max = globalMax;
        } else if (jsonProp.max > globalMax) {
			jsonProp.min = globalMax;
		}
        
        if (!jsonProp.fillOpacity) {
            jsonProp.fillOpacity = false;
        }
		
		if ("number" != typeof jsonProp.lightness) {
			jsonProp.lightness = 1
		} else {
			jsonProp.lightness = Math.max(0, Math.min(1, jsonProp.lightness))
		}
        
        if (!jsonProp.strokeOpacity) {
            jsonProp.strokeOpacity = false;
        }
        
        if (jsonProp.length === undefined || jsonProp.length === null) {
            jsonProp.length = Number.MAX_VALUE;
        }
        
        if (!jsonProp.wrapLines) {
            jsonProp.wrapLines = false;
        }
        
        if (!jsonProp.dateFormat) {
            jsonProp.dateFormat = ORYX.I18N.PropertyWindow.dateFormat || "m/d/y";
        }
        
        if (!jsonProp.fill) {
            jsonProp.fill = false;
        }
        
        if (!jsonProp.stroke) {
            jsonProp.stroke = false;
        }
        
        if(!jsonProp.inverseBoolean) {
        	jsonProp.inverseBoolean = false;
        }
		
		if(!jsonProp.directlyEditable && jsonProp.directlyEditable != false) {
        	jsonProp.directlyEditable = true;
        }
		
		if(jsonProp.visible !== false) {
			jsonProp.visible = true;
		}
		
		if(jsonProp.isList !== true) {
			jsonProp.isList = false;
			
			if(!jsonProp.list || !(jsonProp.list instanceof Array)) {
				jsonProp.list = [];
			}	
		}
		
		if(!jsonProp.category) {
			if (jsonProp.popular) {
				jsonProp.category = "popular";
			} else {
				jsonProp.category = "others";
			}
		}
		
		if(!jsonProp.alwaysAppearInMultiselect) {
			jsonProp.alwaysAppearInMultiselect = false;
		}
        
        if (jsonProp.type === ORYX.CONFIG.TYPE_CHOICE) {
            if (jsonProp.items && jsonProp.items instanceof Array) {
                jsonProp.items.each((function(jsonItem){
                	// why is the item's value used as the key???
                    this._items[jsonItem.value.toLowerCase()] = new ORYX.Core.StencilSet.PropertyItem(jsonItem, namespace, this);
                }).bind(this));
            }
            else {
                throw "ORYX.Core.StencilSet.Property(construct): No property items defined."
            }
            // extended by Kerstin (start)
        }
        else 
            if (jsonProp.type === ORYX.CONFIG.TYPE_COMPLEX || jsonProp.type == ORYX.CONFIG.TYPE_MULTIPLECOMPLEX) {
                if (jsonProp.complexItems && jsonProp.complexItems instanceof Array) {
                    jsonProp.complexItems.each((function(jsonComplexItem){
                        this._complexItems[jsonComplexItem.id.toLowerCase()] = new ORYX.Core.StencilSet.ComplexPropertyItem(jsonComplexItem, namespace, this);
                    }).bind(this));
                }
                else {
                    throw "ORYX.Core.StencilSet.Property(construct): No complex property items defined."
                }
            }
        // extended by Kerstin (end)
    },
	
	getMinForType : function(type) {
		if (type.toLowerCase() == ORYX.CONFIG.TYPE_INTEGER) {
			return -Math.pow(2,31)
		} else {
			return -Number.MAX_VALUE+1;
		}
	}, 
	getMaxForType : function(type) {
		if (type.toLowerCase() == ORYX.CONFIG.TYPE_INTEGER) {
			return Math.pow(2,31)-1
		} else {
			return Number.MAX_VALUE;
		}
	},
    
    /**
     * @param {ORYX.Core.StencilSet.Property} property
     * @return {Boolean} True, if property has the same namespace and id.
     */
    equals: function(property){
        return (this._namespace === property.namespace() &&
        this.id() === property.id()) ? true : false;
    },
    
    namespace: function(){
        return this._namespace;
    },
    
    stencil: function(){
        return this._stencil;
    },
    
    id: function(){
        return this._jsonProp.id;
    },
    
    prefix: function(){
        return this._jsonProp.prefix;
    },
    
    type: function(){
        return this._jsonProp.type;
    },
    
    inverseBoolean: function() {
    	return this._jsonProp.inverseBoolean;
    },
	
	category: function() {
		return this._jsonProp.category;
	},
	
	setCategory: function(value) {
		this._jsonProp.category = value;
	},
	
	directlyEditable: function() {
		return this._jsonProp.directlyEditable;
	},
	
	visible: function() {
		return this._jsonProp.visible;
	},
    
    title: function(){
        return ORYX.Core.StencilSet.getTranslation(this._jsonProp, "title");
    },
    
    value: function(){
        return this._jsonProp.value;
    },
    
    readonly: function(){
        return this._jsonProp.readonly;
    },
    
    optional: function(){
        return this._jsonProp.optional;
    },
    
    description: function(){
        return ORYX.Core.StencilSet.getTranslation(this._jsonProp, "description");
    },
	
    /**
     * An optional link to a SVG element so that the property affects the
     * graphical representation of the stencil.
     */
    refToView: function(){
        return this._jsonProp.refToView;
    },
    
    /**
     * If type is integer or float, min is the lower bounds of value.
     */
    min: function(){
        return this._jsonProp.min;
    },
    
    /**
     * If type ist integer or float, max is the upper bounds of value.
     */
    max: function(){
        return this._jsonProp.max;
    },
    
    /**
     * If type is float, this method returns if the fill-opacity property should
     *  be set.
     *  @return {Boolean}
     */
    fillOpacity: function(){
        return this._jsonProp.fillOpacity;
    },
    
    /**
     * If type is float, this method returns if the stroke-opacity property should
     *  be set.
     *  @return {Boolean}
     */
    strokeOpacity: function(){
        return this._jsonProp.strokeOpacity;
    },
    
    /**
     * If type is string or richtext, length is the maximum length of the text.
     * TODO how long can a string be.
     */
    length: function(){
        return this._jsonProp.length ? this._jsonProp.length : Number.MAX_VALUE;
    },
    
    wrapLines: function(){
        return this._jsonProp.wrapLines;
    },
    
    /**
     * If type is date, dateFormat specifies the format of the date. The format
     * specification of the ext library is used:
     *
     * Format  Output      Description
     *	------  ----------  --------------------------------------------------------------
     *	  d      10         Day of the month, 2 digits with leading zeros
     *	  D      Wed        A textual representation of a day, three letters
     *	  j      10         Day of the month without leading zeros
     *	  l      Wednesday  A full textual representation of the day of the week
     *	  S      th         English ordinal day of month suffix, 2 chars (use with j)
     *	  w      3          Numeric representation of the day of the week
     *	  z      9          The julian date, or day of the year (0-365)
     *	  W      01         ISO-8601 2-digit week number of year, weeks starting on Monday (00-52)
     *	  F      January    A full textual representation of the month
     *	  m      01         Numeric representation of a month, with leading zeros
     *	  M      Jan        Month name abbreviation, three letters
     *	  n      1          Numeric representation of a month, without leading zeros
     *	  t      31         Number of days in the given month
     *	  L      0          Whether its a leap year (1 if it is a leap year, else 0)
     *	  Y      2007       A full numeric representation of a year, 4 digits
     *	  y      07         A two digit representation of a year
     *	  a      pm         Lowercase Ante meridiem and Post meridiem
     *	  A      PM         Uppercase Ante meridiem and Post meridiem
     *	  g      3          12-hour format of an hour without leading zeros
     *	  G      15         24-hour format of an hour without leading zeros
     *	  h      03         12-hour format of an hour with leading zeros
     *	  H      15         24-hour format of an hour with leading zeros
     *	  i      05         Minutes with leading zeros
     *	  s      01         Seconds, with leading zeros
     *	  O      -0600      Difference to Greenwich time (GMT) in hours
     *	  T      CST        Timezone setting of the machine running the code
     *	  Z      -21600     Timezone offset in seconds (negative if west of UTC, positive if east)
     *
     * Example:
     *  F j, Y, g:i a  ->  January 10, 2007, 3:05 pm
     */
    dateFormat: function(){
        return this._jsonProp.dateFormat;
    },
    
    /**
     * If type is color, this method returns if the fill property should
     *  be set.
     *  @return {Boolean}
     */
    fill: function(){
        return this._jsonProp.fill;
    },
	
	/**
	 * Lightness defines the satiation of the color
	 * 0 is the pure color
	 * 1 is white
	 * @return {Integer} lightness
	 */
	lightness: function(){
		return this._jsonProp.lightness;
	},
    
    /**
     * If type is color, this method returns if the stroke property should
     *  be set.
     *  @return {Boolean}
     */
    stroke: function(){
        return this._jsonProp.stroke;
    },
    
    /**
     * If type is choice, items is a hash map with all alternative values
     * (PropertyItem objects) with id as keys.
     */
    items: function(){
        return $H(this._items).values();
    },
    
    item: function(value){
        if (value) {
			return this._items[value.toLowerCase()];
		} else {
			return null;
		}
    },
    
    toString: function(){
        return "Property " + this.title() + " (" + this.id() + ")";
    },
    
    complexItems: function(){
        return $H(this._complexItems).values();
    },
    
    complexItem: function(id){
        if(id) {
			return this._complexItems[id.toLowerCase()];
		} else {
			return null;
		}
		
    },
    
    complexAttributeToView: function(){
        return this._jsonProp.complexAttributeToView || "";
    },
    
    isList: function() {
    	return !!this._jsonProp.isList;
    },
    
    getListItems: function() {
    	return this._jsonProp.list;
    },
	
	/**
	 * If type is glossary link, the 
	 * type of category can be defined where
	 * the link only can go to.
	 * @return {String} The glossary category id 
	 */
	linkableType: function(){
		return this._jsonProp.linkableType || "";
	},
	
	alwaysAppearInMultiselect : function() {
		return this._jsonProp.alwaysAppearInMultiselect;
	},
	
	popular: function() {
		return this._jsonProp.popular || false;
	},
	
	setPopular: function() {
		this._jsonProp.popular = true;
	}
	
});
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespace
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.StencilSet) {ORYX.Core.StencilSet = {};}

/**
 * Class Stencil
 * uses Prototpye 1.5.0
 * uses Inheritance
 */
ORYX.Core.StencilSet.PropertyItem = Clazz.extend({

	/**
	 * Constructor
	 */
	construct: function(jsonItem, namespace, property) {
		arguments.callee.$.construct.apply(this, arguments);

		if(!jsonItem) {
			throw "ORYX.Core.StencilSet.PropertyItem(construct): Parameter jsonItem is not defined.";
		}
		if(!namespace) {
			throw "ORYX.Core.StencilSet.PropertyItem(construct): Parameter namespace is not defined.";
		}
		if(!property) {
			throw "ORYX.Core.StencilSet.PropertyItem(construct): Parameter property is not defined.";
		}
		
		this._jsonItem = jsonItem;
		this._namespace = namespace;
		this._property = property;
		
		//init all values
		if(!jsonItem.value) {
			throw "ORYX.Core.StencilSet.PropertyItem(construct): Value is not defined.";
		}
		
		if(this._jsonItem.refToView) {
			if(!(this._jsonItem.refToView instanceof Array)) {
				this._jsonItem.refToView = [this._jsonItem.refToView];
			}
		} else {
			this._jsonItem.refToView = [];
		}
	},

	/**
	 * @param {ORYX.Core.StencilSet.PropertyItem} item
	 * @return {Boolean} True, if item has the same namespace and id.
	 */
	equals: function(item) {
		return (this.property().equals(item.property()) &&
			this.value() === item.value());
	},

	namespace: function() {
		return this._namespace;
	},

	property: function() {
		return this._property;
	},

	value: function() {
		return this._jsonItem.value;
	},
	
	title: function() {
		return ORYX.Core.StencilSet.getTranslation(this._jsonItem, "title");
	},

	refToView: function() {
		return this._jsonItem.refToView;
	},
	
	icon: function() {
		return (this._jsonItem.icon) ? this.property().stencil()._source + "icons/" + this._jsonItem.icon : "";
	},

	toString: function() { return "PropertyItem " + this.property() + " (" + this.value() + ")"; }
});/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.StencilSet) {ORYX.Core.StencilSet = {};}

/**
 * Class Stencil
 * uses Prototpye 1.5.0
 * uses Inheritance
 */
ORYX.Core.StencilSet.ComplexPropertyItem = Clazz.extend({

	/**
	 * Constructor
	 */
	construct: function(jsonItem, namespace, property) {
		arguments.callee.$.construct.apply(this, arguments);

		if(!jsonItem) {
			throw "ORYX.Core.StencilSet.ComplexPropertyItem(construct): Parameter jsonItem is not defined.";
		}
		if(!namespace) {
			throw "ORYX.Core.StencilSet.ComplexPropertyItem(construct): Parameter namespace is not defined.";
		}
		if(!property) {
			throw "ORYX.Core.StencilSet.ComplexPropertyItem(construct): Parameter property is not defined.";
		}
		
		this._jsonItem = jsonItem;
		this._namespace = namespace;
		this._property = property;
		this._items = new Hash();
		this._complexItems = new Hash();
		
		//init all values
		if(!jsonItem.name) {
			throw "ORYX.Core.StencilSet.ComplexPropertyItem(construct): Name is not defined.";
		}
		
		if(!jsonItem.type) {
			throw "ORYX.Core.StencilSet.ComplexPropertyItem(construct): Type is not defined.";
		} else {
			jsonItem.type = jsonItem.type.toLowerCase();
		}
		
		if(jsonItem.type === ORYX.CONFIG.TYPE_CHOICE) {
			if(jsonItem.items && jsonItem.items instanceof Array) {
				jsonItem.items.each((function(item) {
					this._items[item.value] = new ORYX.Core.StencilSet.PropertyItem(item, namespace, this);
				}).bind(this));
			} else {
				throw "ORYX.Core.StencilSet.Property(construct): No property items defined."
			}
		} else if(jsonItem.type === ORYX.CONFIG.TYPE_COMPLEX) {
			if(jsonItem.complexItems && jsonItem.complexItems instanceof Array) {
				jsonItem.complexItems.each((function(complexItem) {
					this._complexItems[complexItem.id] = new ORYX.Core.StencilSet.ComplexPropertyItem(complexItem, namespace, this);
				}).bind(this));
			} else {
				throw "ORYX.Core.StencilSet.Property(construct): No property items defined."
			}
		}
	},

	/**
	 * @param {ORYX.Core.StencilSet.PropertyItem} item
	 * @return {Boolean} True, if item has the same namespace and id.
	 */
	equals: function(item) {
		return (this.property().equals(item.property()) &&
			this.name() === item.name());
	},

	namespace: function() {
		return this._namespace;
	},

	property: function() {
		return this._property;
	},

	name: function() {
		return ORYX.Core.StencilSet.getTranslation(this._jsonItem, "name");
	},
	
	id: function() {
		return this._jsonItem.id;
	},
	
	type: function() {
		return this._jsonItem.type;
	},
	
	optional: function() {
		return this._jsonItem.optional;
	},
	
	width: function() {
		return this._jsonItem.width;
	},
	
	value: function() {
		return this._jsonItem.value;
	},
	
	items: function() {
		return this._items.values();
	},
	
	complexItems: function() {
		return this._complexItems.values();
	},
	
	disable: function() {
		return this._jsonItem.disable;
	}
});/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.StencilSet) {ORYX.Core.StencilSet = {};}

/**
 * Class Rules uses Prototpye 1.5.0 uses Inheritance
 * 
 * This class implements the API to check the stencil sets' rules.
 */
ORYX.Core.StencilSet.Rules = {

	/**
	 * Constructor
	 */
	construct: function() {
		arguments.callee.$.construct.apply(this, arguments);

		this._stencilSets = [];
		this._stencils = [];
		this._containerStencils = [];
		
		this._cachedConnectSET = new Hash();
		this._cachedConnectSE = new Hash();
		this._cachedConnectTE = new Hash();
		this._cachedCardSE = new Hash();
		this._cachedCardTE = new Hash();
		this._cachedContainPC = new Hash();
		this._cachedMorphRS = new Hash();
		
		this._connectionRules = new Hash();
		this._cardinalityRules = new Hash();
		this._containmentRules = new Hash();
		this._morphingRules = new Hash();
		this._layoutRules = new Hash();
	},
	
	/**
	 * Call this method to initialize the rules for a stencil set and all of its
	 * active extensions.
	 * 
	 * @param {Object}
	 *            stencilSet
	 */
	initializeRules: function(stencilSet) {
		
		var existingSS = this._stencilSets.find(function(ss) {
							return (ss.namespace() == stencilSet.namespace());
						});
		if (existingSS) {
			// reinitialize all rules
			var stencilsets = this._stencilSets.clone();
			stencilsets = stencilsets.without(existingSS);
			stencilsets.push(stencilSet);
			
			this._stencilSets = [];
			this._stencils = [];
			this._containerStencils = [];
			
			this._cachedConnectSET = new Hash();
			this._cachedConnectSE = new Hash();
			this._cachedConnectTE = new Hash();
			this._cachedCardSE = new Hash();
			this._cachedCardTE = new Hash();
			this._cachedContainPC = new Hash();
			this._cachedMorphRS = new Hash();
			
			this._connectionRules = new Hash();
			this._cardinalityRules = new Hash();
			this._containmentRules = new Hash();
			this._morphingRules = new Hash();
			this._layoutRules = new Hash();
			
			stencilsets.each(function(ss){
				this.initializeRules(ss);
			}.bind(this));
			return;
		}
		else {
			this._stencilSets.push(stencilSet);
			
			var jsonRules = new Hash(stencilSet.jsonRules());
			var namespace = stencilSet.namespace();
			var stencils = stencilSet.stencils();
			
			stencilSet.extensions().values().each(function(extension) {
				if(extension.rules) {
					if(extension.rules.connectionRules)
						jsonRules.connectionRules = jsonRules.connectionRules.concat(extension.rules.connectionRules);
					if(extension.rules.cardinalityRules)
						jsonRules.cardinalityRules = jsonRules.cardinalityRules.concat(extension.rules.cardinalityRules);
					if(extension.rules.containmentRules)
						jsonRules.containmentRules = jsonRules.containmentRules.concat(extension.rules.containmentRules);
					if(extension.rules.morphingRules)
						jsonRules.morphingRules = jsonRules.morphingRules.concat(extension.rules.morphingRules);
				}
				if(extension.stencils) 
					stencils = stencils.concat(extension.stencils);
			});
			
			this._stencils = this._stencils.concat(stencilSet.stencils());
			
			// init connection rules
			var cr = this._connectionRules;
			if (jsonRules.connectionRules) {
				jsonRules.connectionRules.each((function(rules){
					if (this._isRoleOfOtherNamespace(rules.role)) {
						if (!cr[rules.role]) {
							cr[rules.role] = new Hash();
						}
					}
					else {
						if (!cr[namespace + rules.role]) 
							cr[namespace + rules.role] = new Hash();
					}
					
					rules.connects.each((function(connect){
						var toRoles = [];
						if (connect.to) {
							if (!(connect.to instanceof Array)) {
								connect.to = [connect.to];
							}
							connect.to.each((function(to){
								if (this._isRoleOfOtherNamespace(to)) {
									toRoles.push(to);
								}
								else {
									toRoles.push(namespace + to);
								}
							}).bind(this));
						}
						
						var role, from;
						if (this._isRoleOfOtherNamespace(rules.role)) 
							role = rules.role;
						else 
							role = namespace + rules.role;
						
						if (this._isRoleOfOtherNamespace(connect.from)) 
							from = connect.from;
						else 
							from = namespace + connect.from;
						
						if (!cr[role][from]) 
							cr[role][from] = toRoles;
						else 
							cr[role][from] = cr[role][from].concat(toRoles);
						
					}).bind(this));
				}).bind(this));
			}
			
			// init cardinality rules
			var cardr = this._cardinalityRules;
			if (jsonRules.cardinalityRules) {
				jsonRules.cardinalityRules.each((function(rules){
					var cardrKey;
					if (this._isRoleOfOtherNamespace(rules.role)) {
						cardrKey = rules.role;
					}
					else {
						cardrKey = namespace + rules.role;
					}
					
					if (!cardr[cardrKey]) {
						cardr[cardrKey] = {};
						for (i in rules) {
							cardr[cardrKey][i] = rules[i];
						}
					}
					
					var oe = new Hash();
					if (rules.outgoingEdges) {
						rules.outgoingEdges.each((function(rule){
							if (this._isRoleOfOtherNamespace(rule.role)) {
								oe[rule.role] = rule;
							}
							else {
								oe[namespace + rule.role] = rule;
							}
						}).bind(this));
					}
					cardr[cardrKey].outgoingEdges = oe;
					var ie = new Hash();
					if (rules.incomingEdges) {
						rules.incomingEdges.each((function(rule){
							if (this._isRoleOfOtherNamespace(rule.role)) {
								ie[rule.role] = rule;
							}
							else {
								ie[namespace + rule.role] = rule;
							}
						}).bind(this));
					}
					cardr[cardrKey].incomingEdges = ie;
				}).bind(this));
			}
			
			// init containment rules
			var conr = this._containmentRules;
			if (jsonRules.containmentRules) {
				jsonRules.containmentRules.each((function(rules){
					var conrKey;
					if (this._isRoleOfOtherNamespace(rules.role)) {
						conrKey = rules.role;
					}
					else {
						this._containerStencils.push(namespace + rules.role);
						conrKey = namespace + rules.role;
					}
					if (!conr[conrKey]) {
						conr[conrKey] = [];
					}
					(rules.contains||[]).each((function(containRole){
						if (this._isRoleOfOtherNamespace(containRole)) {
							conr[conrKey].push(containRole);
						}
						else {
							conr[conrKey].push(namespace + containRole);
						}
					}).bind(this));
				}).bind(this));
			}
			
			// init morphing rules
			var morphr = this._morphingRules;
			if (jsonRules.morphingRules) {
				jsonRules.morphingRules.each((function(rules){
					var morphrKey;
					if (this._isRoleOfOtherNamespace(rules.role)) {
						morphrKey = rules.role;
					}
					else {
						morphrKey = namespace + rules.role;
					}
					if (!morphr[morphrKey]) {
						morphr[morphrKey] = [];
					}
					if(!rules.preserveBounds) {
						rules.preserveBounds = false;
					}
					rules.baseMorphs.each((function(baseMorphStencilId){
						var morphStencil = this._getStencilById(namespace + baseMorphStencilId);
						if(morphStencil) {
							morphr[morphrKey].push(morphStencil);
						}
					}).bind(this));
				}).bind(this));
			}
			
			// init layouting rules
			var layoutRules = this._layoutRules;
			if (jsonRules.layoutRules) {
				
				var getDirections = function(o){
					return {
							"edgeRole":o.edgeRole||undefined,
							"t": o["t"]||1,
							"r": o["r"]||1,
							"b": o["b"]||1,
							"l": o["l"]||1
						}
				}
				
				jsonRules.layoutRules.each(function(rules){
					var layoutKey;
					if (this._isRoleOfOtherNamespace(rules.role)) {
						layoutKey = rules.role;
					}
					else {
						layoutKey = namespace + rules.role;
					}
					if (!layoutRules[layoutKey]) {
						layoutRules[layoutKey] = {};
					}
					if (rules["in"]){
						layoutRules[layoutKey]["in"] = getDirections(rules["in"]);
					}
					if (rules["ins"]){
						layoutRules[layoutKey]["ins"] = (rules["ins"]||[]).map(function(e){ return getDirections(e) })
					}
					if (rules["out"]) {
						layoutRules[layoutKey]["out"] = getDirections(rules["out"]);
					}
					if (rules["outs"]){
						layoutRules[layoutKey]["outs"] = (rules["outs"]||[]).map(function(e){ return getDirections(e) })
					}
				}.bind(this));
			}			
		}
	},
	
	_getStencilById: function(id) {
		return this._stencils.find(function(stencil) {
			return stencil.id()==id;
		});
	},
	
	_cacheConnect: function(args) {
		result = this._canConnect(args);
		
		if (args.sourceStencil && args.targetStencil) {
			var source = this._cachedConnectSET[args.sourceStencil.id()];
			
			if(!source) {
				source = new Hash();
				this._cachedConnectSET[args.sourceStencil.id()] = source;
			}
			
			var edge = source[args.edgeStencil.id()];
			
			if(!edge) {
				edge = new Hash();
				source[args.edgeStencil.id()] = edge;
			}
			
			edge[args.targetStencil.id()] = result;
			
		} else if (args.sourceStencil) {
			var source = this._cachedConnectSE[args.sourceStencil.id()];
			
			if(!source) {
				source = new Hash();
				this._cachedConnectSE[args.sourceStencil.id()] = source;
			}
			
			source[args.edgeStencil.id()] = result;

		} else {
			var target = this._cachedConnectTE[args.targetStencil.id()];
			
			if(!target) {
				target = new Hash();
				this._cachedConnectTE[args.targetStencil.id()] = target;
			}
			
			target[args.edgeStencil.id()] = result;
		}
		
		return result;
	},
	
	_cacheCard: function(args) {
			
		if(args.sourceStencil) {
			var source = this._cachedCardSE[args.sourceStencil.id()]
			
			if(!source) {
				source = new Hash();
				this._cachedCardSE[args.sourceStencil.id()] = source;
			}
			
			var max = this._getMaximumNumberOfOutgoingEdge(args);
			if(max == undefined)
				max = -1;
				
			source[args.edgeStencil.id()] = max;
		}	
		
		if(args.targetStencil) {
			var target = this._cachedCardTE[args.targetStencil.id()]
			
			if(!target) {
				target = new Hash();
				this._cachedCardTE[args.targetStencil.id()] = target;
			}
			
			var max = this._getMaximumNumberOfIncomingEdge(args);
			if(max == undefined)
				max = -1;
				
			target[args.edgeStencil.id()] = max;
		}
	},
	
	_cacheContain: function(args) {
		
		var result = [this._canContain(args), 
					  this._getMaximumOccurrence(args.containingStencil, args.containedStencil)]
		
		if(result[1] == undefined) 
			result[1] = -1;
		
		var children = this._cachedContainPC[args.containingStencil.id()];
		
		if(!children) {
			children = new Hash();
			this._cachedContainPC[args.containingStencil.id()] = children;
		}
		
		children[args.containedStencil.id()] = result;
		
		return result;
	},
	
	/**
	 * Returns all stencils belonging to a morph group. (calculation result is
	 * cached)
	 */
	_cacheMorph: function(role) {
		
		var morphs = this._cachedMorphRS[role];
		
		if(!morphs) {
			morphs = [];
			
			if(this._morphingRules.keys().include(role)) {
				morphs = this._stencils.select(function(stencil) {
					return stencil.roles().include(role);
				});
			}
			
			this._cachedMorphRS[role] = morphs;
		}
		return morphs;
	},
	
	/** Begin connection rules' methods */
	
	/**
	 * 
	 * @param {Object}
	 *            args sourceStencil: ORYX.Core.StencilSet.Stencil | undefined
	 *            sourceShape: ORYX.Core.Shape | undefined
	 * 
	 * At least sourceStencil or sourceShape has to be specified
	 * 
	 * @return {Array} Array of stencils of edges that can be outgoing edges of
	 *         the source.
	 */
	outgoingEdgeStencils: function(args) {
		// check arguments
		if(!args.sourceShape && !args.sourceStencil) {
			return [];
		}
		
		// init arguments
		if(args.sourceShape) {
			args.sourceStencil = args.sourceShape.getStencil();
		}
		
		var _edges = [];
		
		// test each edge, if it can connect to source
		this._stencils.each((function(stencil) {
			if(stencil.type() === "edge") {
				var newArgs = Object.clone(args);
				newArgs.edgeStencil = stencil;
				if(this.canConnect(newArgs)) {
					_edges.push(stencil);
				}
			}
		}).bind(this));

		return _edges;
	},

	/**
	 * 
	 * @param {Object}
	 *            args targetStencil: ORYX.Core.StencilSet.Stencil | undefined
	 *            targetShape: ORYX.Core.Shape | undefined
	 * 
	 * At least targetStencil or targetShape has to be specified
	 * 
	 * @return {Array} Array of stencils of edges that can be incoming edges of
	 *         the target.
	 */
	incomingEdgeStencils: function(args) {
		// check arguments
		if(!args.targetShape && !args.targetStencil) {
			return [];
		}
		
		// init arguments
		if(args.targetShape) {
			args.targetStencil = args.targetShape.getStencil();
		}
		
		var _edges = [];
		
		// test each edge, if it can connect to source
		this._stencils.each((function(stencil) {
			if(stencil.type() === "edge") {
				var newArgs = Object.clone(args);
				newArgs.edgeStencil = stencil;
				if(this.canConnect(newArgs)) {
					_edges.push(stencil);
				}
			}
		}).bind(this));

		return _edges;
	},
	
	/**
	 * 
	 * @param {Object}
	 *            args edgeStencil: ORYX.Core.StencilSet.Stencil | undefined
	 *            edgeShape: ORYX.Core.Edge | undefined targetStencil:
	 *            ORYX.Core.StencilSet.Stencil | undefined targetShape:
	 *            ORYX.Core.Node | undefined
	 * 
	 * At least edgeStencil or edgeShape has to be specified!!!
	 * 
	 * @return {Array} Returns an array of stencils that can be source of the
	 *         specified edge.
	 */
	sourceStencils: function(args) {
		// check arguments
		if(!args || 
		   !args.edgeShape && !args.edgeStencil) {
			return [];
		}
		
		// init arguments
		if(args.targetShape) {
			args.targetStencil = args.targetShape.getStencil();
		}
		
		if(args.edgeShape) {
			args.edgeStencil = args.edgeShape.getStencil();
		}
		
		var _sources = [];
		
		// check each stencil, if it can be a source
		this._stencils.each((function(stencil) {
			var newArgs = Object.clone(args);
			newArgs.sourceStencil = stencil;
			if(this.canConnect(newArgs)) {
				_sources.push(stencil);
			}
		}).bind(this));

		return _sources;
	},
	
	/**
	 * 
	 * @param {Object}
	 *            args edgeStencil: ORYX.Core.StencilSet.Stencil | undefined
	 *            edgeShape: ORYX.Core.Edge | undefined sourceStencil:
	 *            ORYX.Core.StencilSet.Stencil | undefined sourceShape:
	 *            ORYX.Core.Node | undefined
	 * 
	 * At least edgeStencil or edgeShape has to be specified!!!
	 * 
	 * @return {Array} Returns an array of stencils that can be target of the
	 *         specified edge.
	 */
	targetStencils: function(args) {
		// check arguments
		if(!args || 
		   !args.edgeShape && !args.edgeStencil) {
			return [];
		}
		
		// init arguments
		if(args.sourceShape) {
			args.sourceStencil = args.sourceShape.getStencil();
		}
		
		if(args.edgeShape) {
			args.edgeStencil = args.edgeShape.getStencil();
		}
		
		var _targets = [];
		
		// check stencil, if it can be a target
		this._stencils.each((function(stencil) {
			var newArgs = Object.clone(args);
			newArgs.targetStencil = stencil;
			if(this.canConnect(newArgs)) {
				_targets.push(stencil);
			}
		}).bind(this));

		return _targets;
	},

	/**
	 * 
	 * @param {Object}
	 *            args edgeStencil: ORYX.Core.StencilSet.Stencil edgeShape:
	 *            ORYX.Core.Edge |undefined sourceStencil:
	 *            ORYX.Core.StencilSet.Stencil | undefined sourceShape:
	 *            ORYX.Core.Node |undefined targetStencil:
	 *            ORYX.Core.StencilSet.Stencil | undefined targetShape:
	 *            ORYX.Core.Node |undefined
	 * 
	 * At least source or target has to be specified!!!
	 * 
	 * @return {Boolean} Returns, if the edge can connect source and target.
	 */
	canConnect: function(args) {	
		// check arguments
		if(!args ||
		   (!args.sourceShape && !args.sourceStencil &&
		    !args.targetShape && !args.targetStencil) ||
		    !args.edgeShape && !args.edgeStencil) {
		   	return false; 
		}
		
		// init arguments
		if(args.sourceShape) {
			args.sourceStencil = args.sourceShape.getStencil();
		}
		if(args.targetShape) {
			args.targetStencil = args.targetShape.getStencil();
		}
		if(args.edgeShape) {
			args.edgeStencil = args.edgeShape.getStencil();
		}
		
		var result;
		
		if(args.sourceStencil && args.targetStencil) {
			var source = this._cachedConnectSET[args.sourceStencil.id()];
			
			if(!source)
				result = this._cacheConnect(args);
			else {
				var edge = source[args.edgeStencil.id()];

				if(!edge)
					result = this._cacheConnect(args);
				else {	
					var target = edge[args.targetStencil.id()];

					if(target == undefined)
						result = this._cacheConnect(args);
					else
						result = target;
				}
			}
		} else if (args.sourceStencil) {	
			var source = this._cachedConnectSE[args.sourceStencil.id()];
			
			if(!source)
				result = this._cacheConnect(args);
			else {
				var edge = source[args.edgeStencil.id()];
					
				if(edge == undefined)
					result = this._cacheConnect(args);
				else
					result = edge;
			}
		} else { // args.targetStencil
			var target = this._cachedConnectTE[args.targetStencil.id()];
			
			if(!target)
				result = this._cacheConnect(args);
			else {
				var edge = target[args.edgeStencil.id()];
					
				if(edge == undefined)
					result = this._cacheConnect(args);
				else
					result = edge;
			}
		}	
			
		// check cardinality
		if (result) {
			if(args.sourceShape) {
				var source = this._cachedCardSE[args.sourceStencil.id()];
				
				if(!source) {
					this._cacheCard(args);
					source = this._cachedCardSE[args.sourceStencil.id()];
				}
				
				var max = source[args.edgeStencil.id()];
				
				if(max == undefined) {
					this._cacheCard(args);
				}
				
				max = source[args.edgeStencil.id()];
				
				if(max != -1) {
					result = args.sourceShape.getOutgoingShapes().all(function(cs) {
								if((cs.getStencil().id() === args.edgeStencil.id()) && 
								   ((args.edgeShape) ? cs !== args.edgeShape : true)) {
									max--;
									return (max > 0) ? true : false;
								} else {
									return true;
								}
							});
				}
			} 
			
			if (args.targetShape) {
				var target = this._cachedCardTE[args.targetStencil.id()];
				
				if(!target) {
					this._cacheCard(args);
					target = this._cachedCardTE[args.targetStencil.id()];
				}
				
				var max = target[args.edgeStencil.id()];
				
				if(max == undefined) {
					this._cacheCard(args);
				}
				
				max = target[args.edgeStencil.id()];
				
				if(max != -1) {
					result = args.targetShape.getIncomingShapes().all(function(cs){
								if ((cs.getStencil().id() === args.edgeStencil.id()) &&
								((args.edgeShape) ? cs !== args.edgeShape : true)) {
									max--;
									return (max > 0) ? true : false;
								}
								else {
									return true;
								}
							});
				}
			}
		}
		
		return result;
	},
	
	/**
	 * 
	 * @param {Object}
	 *            args edgeStencil: ORYX.Core.StencilSet.Stencil edgeShape:
	 *            ORYX.Core.Edge |undefined sourceStencil:
	 *            ORYX.Core.StencilSet.Stencil | undefined sourceShape:
	 *            ORYX.Core.Node |undefined targetStencil:
	 *            ORYX.Core.StencilSet.Stencil | undefined targetShape:
	 *            ORYX.Core.Node |undefined
	 * 
	 * At least source or target has to be specified!!!
	 * 
	 * @return {Boolean} Returns, if the edge can connect source and target.
	 */
	_canConnect: function(args) {
		// check arguments
		if(!args ||
		   (!args.sourceShape && !args.sourceStencil &&
		    !args.targetShape && !args.targetStencil) ||
		    !args.edgeShape && !args.edgeStencil) {
		   	return false; 
		}
		
		// init arguments
		if(args.sourceShape) {
			args.sourceStencil = args.sourceShape.getStencil();
		}
		if(args.targetShape) {
			args.targetStencil = args.targetShape.getStencil();
		}
		if(args.edgeShape) {
			args.edgeStencil = args.edgeShape.getStencil();
		}

		// 1. check connection rules
		var resultCR;
		
		// get all connection rules for this edge
		var edgeRules = this._getConnectionRulesOfEdgeStencil(args.edgeStencil);

		// check connection rules, if the source can be connected to the target
		// with the specified edge.
		if(edgeRules.keys().length === 0) {
			resultCR = false;
		} else {
			if(args.sourceStencil) {
				resultCR = args.sourceStencil.roles().any(function(sourceRole) {
					var targetRoles = edgeRules[sourceRole];

					if(!targetRoles) {return false;}
		
					if(args.targetStencil) {
						return (targetRoles.any(function(targetRole) {
							return args.targetStencil.roles().member(targetRole);
						}));
					} else {
						return true;
					}
				});
			} else { // !args.sourceStencil -> there is args.targetStencil
				resultCR = edgeRules.values().any(function(targetRoles) {
					return args.targetStencil.roles().any(function(targetRole) {
						return targetRoles.member(targetRole);
					});
				});
			}
		}
		
		return resultCR;
	},

	/** End connection rules' methods */


	/** Begin containment rules' methods */

	isContainer: function(shape) {
		return this._containerStencils.member(shape.getStencil().id());
	},

	/**
	 * 
	 * @param {Object}
	 *            args containingStencil: ORYX.Core.StencilSet.Stencil
	 *            containingShape: ORYX.Core.AbstractShape containedStencil:
	 *            ORYX.Core.StencilSet.Stencil containedShape: ORYX.Core.Shape
	 */
	canContain: function(args) {
		if(!args ||
		   !args.containingStencil && !args.containingShape ||
		   !args.containedStencil && !args.containedShape) {
		   	return false;
		}
		
		// init arguments
		if(args.containedShape) {
			args.containedStencil = args.containedShape.getStencil();
		}
		
		if(args.containingShape) {
			args.containingStencil = args.containingShape.getStencil();
		}
		
		//if(args.containingStencil.type() == 'edge' || args.containedStencil.type() == 'edge')
		//	return false;
		if(args.containedStencil.type() == 'edge') 
			return false;
		
		var childValues;
		
		var parent = this._cachedContainPC[args.containingStencil.id()];
		
		if(!parent)
			childValues = this._cacheContain(args);
		else {
			childValues = parent[args.containedStencil.id()];
			
			if(!childValues)
				childValues = this._cacheContain(args);
		}

		if(!childValues[0])
			return false;
		else if (childValues[1] == -1)
			return true;
		else {
			if(args.containingShape) {
				var max = childValues[1];
				return args.containingShape.getChildShapes(false).all(function(as) {
					if(as.getStencil().id() === args.containedStencil.id()) {
						max--;
						return (max > 0) ? true : false;
					} else {
						return true;
					}
				});
			} else {
				return true;
			}
		}
	},
	
	/**
	 * 
	 * @param {Object}
	 *            args containingStencil: ORYX.Core.StencilSet.Stencil
	 *            containingShape: ORYX.Core.AbstractShape containedStencil:
	 *            ORYX.Core.StencilSet.Stencil containedShape: ORYX.Core.Shape
	 */
	_canContain: function(args) {
		if(!args ||
		   !args.containingStencil && !args.containingShape ||
		   !args.containedStencil && !args.containedShape) {
		   	return false;
		}
		
		// init arguments
		if(args.containedShape) {
			args.containedStencil = args.containedShape.getStencil();
		}
		
		if(args.containingShape) {
			args.containingStencil = args.containingShape.getStencil();
		}
		
//		if(args.containingShape) {
//			if(args.containingShape instanceof ORYX.Core.Edge) {
//				// edges cannot contain other shapes
//				return false;
//			}
//		}

		
		var result;
		
		// check containment rules
		result = args.containingStencil.roles().any((function(role) {
			var roles = this._containmentRules[role];
			if(roles) {
				return roles.any(function(role) {
					return args.containedStencil.roles().member(role);
				});
			} else {
				return false;
			}
		}).bind(this));
		
		return result;
	},
	
	/** End containment rules' methods */
	
	
	/** Begin morphing rules' methods */
	
	/**
	 * 
	 * @param {Object}
	 *           args 
	 *            stencil: ORYX.Core.StencilSet.Stencil | undefined 
	 *            shape: ORYX.Core.Shape | undefined
	 * 
	 * At least stencil or shape has to be specified
	 * 
	 * @return {Array} Array of stencils that the passed stencil/shape can be
	 *         transformed to (including the current stencil itself)
	 */
	morphStencils: function(args) {
		// check arguments
		if(!args.stencil && !args.shape) {
			return [];
		}
		
		// init arguments
		if(args.shape) {
			args.stencil = args.shape.getStencil();
		}
		
		var _morphStencils = [];
		args.stencil.roles().each(function(role) {
			this._cacheMorph(role).each(function(stencil) {
				_morphStencils.push(stencil);
			})
		}.bind(this));


		var baseMorphs = this.baseMorphs();
		// BaseMorphs should be in the front of the array
		_morphStencils = _morphStencils.uniq().sort(function(a,b){ return baseMorphs.include(a)&&!baseMorphs.include(b) ? -1 : (baseMorphs.include(b)&&!baseMorphs.include(a) ? 1 : 0)})
		return _morphStencils;
	},
	
	/**
	 * @return {Array} An array of all base morph stencils
	 */
	baseMorphs: function() {
		var _baseMorphs = [];
		this._morphingRules.each(function(pair) {
			pair.value.each(function(baseMorph) {
				_baseMorphs.push(baseMorph);
			});
		});
		return _baseMorphs;
	},
	
	/**
	 * Returns true if there are morphing rules defines
	 * @return {boolean} 
	 */
	containsMorphingRules: function(){
		return this._stencilSets.any(function(ss){ return !!ss.jsonRules().morphingRules});
	},
	
	/**
	 * 
	 * @param {Object}
	 *            args 
	 *            sourceStencil:
	 *            ORYX.Core.StencilSet.Stencil | undefined 
	 *            sourceShape:
	 *            ORYX.Core.Node |undefined 
	 *            targetStencil:
	 *            ORYX.Core.StencilSet.Stencil | undefined 
	 *            targetShape:
	 *            ORYX.Core.Node |undefined
	 * 
	 * 
	 * @return {Stencil} Returns, the stencil for the connecting edge 
	 * or null if connection is not possible
	 */
	connectMorph: function(args) {	
		// check arguments
		if(!args ||
		   (!args.sourceShape && !args.sourceStencil &&
		    !args.targetShape && !args.targetStencil)) {
		   	return false; 
		}
		
		// init arguments
		if(args.sourceShape) {
			args.sourceStencil = args.sourceShape.getStencil();
		}
		if(args.targetShape) {
			args.targetStencil = args.targetShape.getStencil();
		}
		
		var incoming = this.incomingEdgeStencils(args);
		var outgoing = this.outgoingEdgeStencils(args);
		
		var edgeStencils = incoming.select(function(e) { return outgoing.member(e); }); // intersection of sets
		var baseEdgeStencils = this.baseMorphs().select(function(e) { return edgeStencils.member(e); }); // again: intersection of sets
		
		if(baseEdgeStencils.size()>0)
			return baseEdgeStencils[0]; // return any of the possible base morphs
		else if(edgeStencils.size()>0)
			return edgeStencils[0];	// return any of the possible stencils
		
		return null; //connection not possible
	},
	
	/**
	 * Return true if the stencil should be located in the shape menu
	 * @param {ORYX.Core.StencilSet.Stencil} morph
	 * @return {Boolean} Returns true if the morphs in the morph group of the
	 * specified morph shall be displayed in the shape menu
	 */
	showInShapeMenu: function(stencil) {
		return 	this._stencilSets.any(function(ss){
				    return ss.jsonRules().morphingRules
							.any(function(r){
								return 	stencil.roles().include(ss.namespace() + r.role) 
										&& r.showInShapeMenu !== false;
							})
				});
	},
	
	preserveBounds: function(stencil) {
		return this._stencilSets.any(function(ss) {
			return ss.jsonRules().morphingRules.any(function(r) {
				
				
				return stencil.roles().include(ss.namespace() + r.role) 
					&& r.preserveBounds;
			})
		})
	},
	
	/** End morphing rules' methods */


	/** Begin layouting rules' methods */
	
	/**
	 * Returns a set on "in" and "out" layouting rules for a given shape
	 * @param {Object} shape
	 * @param {Object} edgeShape (Optional)
	 * @return {Object} "in" and "out" with a default value of {"t":1, "r":1, "b":1, "r":1} if not specified in the json
	 */
	getLayoutingRules : function(shape, edgeShape){
		
		if (!shape||!(shape instanceof ORYX.Core.Shape)){ return }
		
		var layout = {"in":{},"out":{}};
		
		var parseValues = function(o, v){
			if (o && o[v]){
				["t","r","b","l"].each(function(d){
					layout[v][d]=Math.max(o[v][d],layout[v][d]||0);
				});
			}
			if (o && o[v+"s"] instanceof Array){
				["t","r","b","l"].each(function(d){
					var defaultRule = o[v+"s"].find(function(e){ return !e.edgeRole });
					var edgeRule;
					if (edgeShape instanceof ORYX.Core.Edge) {
						edgeRule = o[v + "s"].find(function(e){return this._hasRole(edgeShape, e.edgeRole) }.bind(this));
					}
					layout[v][d]=Math.max(edgeRule?edgeRule[d]:defaultRule[d],layout[v][d]||0);
				}.bind(this));
			}
		}.bind(this)
		
		// For each role
		shape.getStencil().roles().each(function(role) {
			// check if there are layout information
			if (this._layoutRules[role]){
				// if so, parse those information to the 'layout' variable
				parseValues(this._layoutRules[role], "in");
				parseValues(this._layoutRules[role], "out");
			}
		}.bind(this));
		
		// Make sure, that every attribute has an value,
		// otherwise set 1
		["in","out"].each(function(v){
			["t","r","b","l"].each(function(d){
					layout[v][d]=layout[v][d]!==undefined?layout[v][d]:1;
				});
		})
		
		return layout;
	},
	
	/** End layouting rules' methods */
	
	/** Helper methods */

	/**
	 * Checks wether a shape contains the given role or the role is equal the stencil id 
	 * @param {ORYX.Core.Shape} shape
	 * @param {String} role
	 */
	_hasRole: function(shape, role){
		if (!(shape instanceof ORYX.Core.Shape)||!role){ return }
		var isRole = shape.getStencil().roles().any(function(r){ return r == role});
		
		return isRole || shape.getStencil().id() == (shape.getStencil().namespace()+role);
	},

	/**
	 * 
	 * @param {String}
	 *            role
	 * 
	 * @return {Array} Returns an array of stencils that can act as role.
	 */
	_stencilsWithRole: function(role) {
		return this._stencils.findAll(function(stencil) {
			return (stencil.roles().member(role)) ? true : false;
		});
	},
	
	/**
	 * 
	 * @param {String}
	 *            role
	 * 
	 * @return {Array} Returns an array of stencils that can act as role and
	 *         have the type 'edge'.
	 */
	_edgesWithRole: function(role) {
		return this._stencils.findAll(function(stencil) {
			return (stencil.roles().member(role) && stencil.type() === "edge") ? true : false;
		});
	},
	
	/**
	 * 
	 * @param {String}
	 *            role
	 * 
	 * @return {Array} Returns an array of stencils that can act as role and
	 *         have the type 'node'.
	 */
	_nodesWithRole: function(role) {
		return this._stencils.findAll(function(stencil) {
			return (stencil.roles().member(role) && stencil.type() === "node") ? true : false;
		});
	},

	/**
	 * 
	 * @param {ORYX.Core.StencilSet.Stencil}
	 *            parent
	 * @param {ORYX.Core.StencilSet.Stencil}
	 *            child
	 * 
	 * @returns {Boolean} Returns the maximum occurrence of shapes of the
	 *          stencil's type inside the parent.
	 */
	_getMaximumOccurrence: function(parent, child) {
		var max;
		child.roles().each((function(role) {
			var cardRule = this._cardinalityRules[role];
			if(cardRule && cardRule.maximumOccurrence) {
				if(max) {
					max = Math.min(max, cardRule.maximumOccurrence);
				} else {
					max = cardRule.maximumOccurrence;
				}
			}
		}).bind(this));

		return max;
	},


	/**
	 * 
	 * @param {Object}
	 *            args sourceStencil: ORYX.Core.Node edgeStencil:
	 *            ORYX.Core.StencilSet.Stencil
	 * 
	 * @return {Boolean} Returns, the maximum number of outgoing edges of the
	 *         type specified by edgeStencil of the sourceShape.
	 */
	_getMaximumNumberOfOutgoingEdge: function(args) {
		if(!args ||
		   !args.sourceStencil ||
		   !args.edgeStencil) {
		   	return false;
		}
		
		var max;
		args.sourceStencil.roles().each((function(role) {
			var cardRule = this._cardinalityRules[role];

			if(cardRule && cardRule.outgoingEdges) {
				args.edgeStencil.roles().each(function(edgeRole) {
					var oe = cardRule.outgoingEdges[edgeRole];

					if(oe && oe.maximum) {
						if(max) {
							max = Math.min(max, oe.maximum);
						} else {
							max = oe.maximum;
						}
					}
				});
			}
		}).bind(this));

		return max;
	},
	
	/**
	 * 
	 * @param {Object}
	 *            args targetStencil: ORYX.Core.StencilSet.Stencil edgeStencil:
	 *            ORYX.Core.StencilSet.Stencil
	 * 
	 * @return {Boolean} Returns the maximum number of incoming edges of the
	 *         type specified by edgeStencil of the targetShape.
	 */
	_getMaximumNumberOfIncomingEdge: function(args) {
		if(!args ||
		   !args.targetStencil ||
		   !args.edgeStencil) {
		   	return false;
		}
		
		var max;
		args.targetStencil.roles().each((function(role) {
			var cardRule = this._cardinalityRules[role];
			if(cardRule && cardRule.incomingEdges) {
				args.edgeStencil.roles().each(function(edgeRole) {
					var ie = cardRule.incomingEdges[edgeRole];
					if(ie && ie.maximum) {
						if(max) {
							max = Math.min(max, ie.maximum);
						} else {
							max = ie.maximum;
						}
					}
				});
			}
		}).bind(this));

		return max;
	},
	
	/**
	 * 
	 * @param {ORYX.Core.StencilSet.Stencil}
	 *            edgeStencil
	 * 
	 * @return {Hash} Returns a hash map of all connection rules for
	 *         edgeStencil.
	 */
	_getConnectionRulesOfEdgeStencil: function(edgeStencil) {
		var edgeRules = new Hash();
		edgeStencil.roles().each((function(role) {
			if(this._connectionRules[role]) {
				this._connectionRules[role].each(function(cr) {
					if(edgeRules[cr.key]) {
						edgeRules[cr.key] = edgeRules[cr.key].concat(cr.value);
					} else {
						edgeRules[cr.key] = cr.value;
					}
				});
			}
		}).bind(this));
		
		return edgeRules;
	},
	
	_isRoleOfOtherNamespace: function(role) {
		return (role.indexOf("#") > 0);
	},

	toString: function() { return "Rules"; }
}
ORYX.Core.StencilSet.Rules = Clazz.extend(ORYX.Core.StencilSet.Rules);
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/
/**
 * Init namespace
 */
if (!ORYX) {
    var ORYX = {};
}
if (!ORYX.Core) {
    ORYX.Core = {};
}
if (!ORYX.Core.StencilSet) {
    ORYX.Core.StencilSet = {};
}

/**
 * This class represents a stencil set. It offers methods for accessing
 *  the attributes of the stencil set description JSON file and the stencil set's
 *  stencils.
 */
ORYX.Core.StencilSet.StencilSet = Clazz.extend({

    /**
     * Constructor
     * @param source {URL} A reference to the stencil set specification.
     *
     */
    construct: function(source){
        arguments.callee.$.construct.apply(this, arguments);
        
        if (!source) {
            throw "ORYX.Core.StencilSet.StencilSet(construct): Parameter 'source' is not defined.";
        }
        
        if (source.endsWith("/")) {
            source = source.substr(0, source.length - 1);
        }
		
		this._extensions = new Hash();
        
        this._source = source;
        this._baseUrl = source.substring(0, source.lastIndexOf("/") + 1);
        
        this._jsonObject = {};
        
        this._stencils = new Hash();
		this._availableStencils = new Hash();
        
		if(ORYX.CONFIG.BACKEND_SWITCH) {
			this._baseUrl = "../editor/stencilsets/bpmn2.0/";
			this._source = "../stencilsets/bpmn2.0/bpmn2.0.json";
			new Ajax.Request("../service/editor/stencilset", {
	            asynchronous: false,
	            method: 'get',
	            onSuccess: this._init.bind(this),
	            onFailure: this._cancelInit.bind(this)
	        });
			
		} else {
			new Ajax.Request(source, {
	            asynchronous: false,
	            method: 'get',
	            onSuccess: this._init.bind(this),
	            onFailure: this._cancelInit.bind(this)
	        });
		}
        
        if (this.errornous) 
            throw "Loading stencil set " + source + " failed.";
    },
    
    /**
     * Finds a root stencil in this stencil set. There may be many of these. If
     * there are, the first one found will be used. In Firefox, this is the
     * topmost definition in the stencil set description file.
     */
    findRootStencilName: function(){
    
        // find any stencil that may be root.
        var rootStencil = this._stencils.values().find(function(stencil){
            return stencil._jsonStencil.mayBeRoot
        });
        
		// if there is none, just guess the first.
		if (!rootStencil) {
			ORYX.Log.warn("Did not find any stencil that may be root. Taking a guess.");
			rootStencil = this._stencils.values()[0];
		}

        // return its id.
        return rootStencil.id();
    },
    
    /**
     * @param {ORYX.Core.StencilSet.StencilSet} stencilSet
     * @return {Boolean} True, if stencil set has the same namespace.
     */
    equals: function(stencilSet){
        return (this.namespace() === stencilSet.namespace());
    },
    
	/**
	 * 
	 * @param {Oryx.Core.StencilSet.Stencil} rootStencil If rootStencil is defined, it only returns stencils
	 * 			that could be (in)direct child of that stencil.
	 */
    stencils: function(rootStencil, rules, sortByGroup){
		if(rootStencil && rules) {
			var stencils = this._availableStencils.values();
			var containers = [rootStencil];
			var checkedContainers = [];
			
			var result = [];
			
			while (containers.size() > 0) {
				var container = containers.pop();
				checkedContainers.push(container);
				var children = stencils.findAll(function(stencil){
					var args = {
						containingStencil: container,
						containedStencil: stencil
					};
					return rules.canContain(args);
				});
				for(var i = 0; i < children.size(); i++) {
					if (!checkedContainers.member(children[i])) {
						containers.push(children[i]);
					}
				}
				result = result.concat(children).uniq();
			}
			
			// Sort the result to the origin order
			result = result.sortBy(function(stencil) {
				return stencils.indexOf(stencil);
			});
			
			
			if(sortByGroup) {
				result = result.sortBy(function(stencil) {
					return stencil.groups().first();
				});
			}
			
			var edges = stencils.findAll(function(stencil) {
				return stencil.type() == "edge";
			});
			result = result.concat(edges);
			
			return result;
			
		} else {
        	if(sortByGroup) {
				return this._availableStencils.values().sortBy(function(stencil) {
					return stencil.groups().first();
				});
			} else {
				return this._availableStencils.values();
			}
		}
    },
    
    nodes: function(){
        return this._availableStencils.values().findAll(function(stencil){
            return (stencil.type() === 'node')
        });
    },
    
    edges: function(){
        return this._availableStencils.values().findAll(function(stencil){
            return (stencil.type() === 'edge')
        });
    },
    
    stencil: function(id){
        return this._stencils[id];
    },
    
    title: function(){
        return ORYX.Core.StencilSet.getTranslation(this._jsonObject, "title");
    },
    
    description: function(){
        return ORYX.Core.StencilSet.getTranslation(this._jsonObject, "description");
    },
    
    namespace: function(){
        return this._jsonObject ? this._jsonObject.namespace : null;
    },
    
    jsonRules: function(){
        return this._jsonObject ? this._jsonObject.rules : null;
    },
    
    source: function(){
        return this._source;
    },
	
	extensions: function() {
		return this._extensions;
	},
	
	addExtension: function(url) {
		
		new Ajax.Request(url, {
            method: 'GET',
            asynchronous: false,
			onSuccess: (function(transport) {
				this.addExtensionDirectly(transport.responseText);
			}).bind(this),
			onFailure: (function(transport) {
				ORYX.Log.debug("Loading stencil set extension file failed. The request returned an error." + transport);
			}).bind(this),
			onException: (function(transport) {
				ORYX.Log.debug("Loading stencil set extension file failed. The request returned an error." + transport);
			}).bind(this)
		
		});
	},
	
	addExtensionDirectly: function(str){

		try {
			eval("var jsonExtension = " + str);

			if(!(jsonExtension["extends"].endsWith("#")))
					jsonExtension["extends"] += "#";
					
			if(jsonExtension["extends"] == this.namespace()) {
				this._extensions[jsonExtension.namespace] = jsonExtension;
				
				var defaultPosition = this._stencils.keys().size();
				//load new stencils
				if(jsonExtension.stencils) {
					$A(jsonExtension.stencils).each(function(stencil) {
						defaultPosition++;
						var oStencil = new ORYX.Core.StencilSet.Stencil(stencil, this.namespace(), this._baseUrl, this, undefined, defaultPosition);            
						this._stencils[oStencil.id()] = oStencil;
						this._availableStencils[oStencil.id()] = oStencil;
					}.bind(this));
				}
				
				//load additional properties
				if (jsonExtension.properties) {
					var stencils = this._stencils.values();
					
					stencils.each(function(stencil){
						var roles = stencil.roles();
						
						jsonExtension.properties.each(function(prop){
							prop.roles.any(function(role){
								role = jsonExtension["extends"] + role;
								if (roles.member(role)) {
									prop.properties.each(function(property){
										stencil.addProperty(property, jsonExtension.namespace);
									});
									
									return true;
								}
								else 
									return false;
							})
						})
					}.bind(this));
				}
				
				//remove stencil properties
				if(jsonExtension.removeproperties) {
					jsonExtension.removeproperties.each(function(remprop) {
						var stencil = this.stencil(jsonExtension["extends"] + remprop.stencil);
						if(stencil) {
							remprop.properties.each(function(propId) {
								stencil.removeProperty(propId);
							});
						}
					}.bind(this));
				}
				
				//remove stencils
				if(jsonExtension.removestencils) {
					$A(jsonExtension.removestencils).each(function(remstencil) {
						delete this._availableStencils[jsonExtension["extends"] + remstencil];
					}.bind(this));
				}
			}
		} catch (e) {
			ORYX.Log.debug("StencilSet.addExtension: Something went wrong when initialising the stencil set extension. " + e);
		}	
	},
	
	removeExtension: function(namespace) {
		var jsonExtension = this._extensions[namespace];
		if(jsonExtension) {
			
			//unload extension's stencils
			if(jsonExtension.stencils) {
				$A(jsonExtension.stencils).each(function(stencil) {
					var oStencil = new ORYX.Core.StencilSet.Stencil(stencil, this.namespace(), this._baseUrl, this);            
					delete this._stencils[oStencil.id()]; // maybe not ??
					delete this._availableStencils[oStencil.id()];
				}.bind(this));
			}
			
			//unload extension's properties
			if (jsonExtension.properties) {
				var stencils = this._stencils.values();
				
				stencils.each(function(stencil){
					var roles = stencil.roles();
					
					jsonExtension.properties.each(function(prop){
						prop.roles.any(function(role){
							role = jsonExtension["extends"] + role;
							if (roles.member(role)) {
								prop.properties.each(function(property){
									stencil.removeProperty(property.id);
								});
								
								return true;
							}
							else 
								return false;
						})
					})
				}.bind(this));
			}
			
			//restore removed stencil properties
			if(jsonExtension.removeproperties) {
				jsonExtension.removeproperties.each(function(remprop) {
					var stencil = this.stencil(jsonExtension["extends"] + remprop.stencil);
					if(stencil) {
						var stencilJson = $A(this._jsonObject.stencils).find(function(s) { return s.id == stencil.id() });
						remprop.properties.each(function(propId) {
							var propertyJson = $A(stencilJson.properties).find(function(p) { return p.id == propId });
							stencil.addProperty(propertyJson, this.namespace());
						}.bind(this));
					}
				}.bind(this));
			}
			
			//restore removed stencils
			if(jsonExtension.removestencils) {
				$A(jsonExtension.removestencils).each(function(remstencil) {
					var sId = jsonExtension["extends"] + remstencil;
					this._availableStencils[sId] = this._stencils[sId];
				}.bind(this));
			}
		}
		delete this._extensions[namespace];
	},
    
    __handleStencilset: function(response){
    
        try {
            // using eval instead of prototype's parsing,
            // since there are functions in this JSON.
            eval("this._jsonObject =" + response.responseText);
        } 
        catch (e) {
            throw "Stenciset corrupt: " + e;
        }
        
        // assert it was parsed.
        if (!this._jsonObject) {
            throw "Error evaluating stencilset. It may be corrupt.";
        }
        
        with (this._jsonObject) {
        
            // assert there is a namespace.
            if (!namespace || namespace === "") 
                throw "Namespace definition missing in stencilset.";
            
            if (!(stencils instanceof Array)) 
                throw "Stencilset corrupt.";
            
            // assert namespace ends with '#'.
            if (!namespace.endsWith("#")) 
                namespace = namespace + "#";
            
            // assert title and description are strings.
            if (!title) 
                title = "";
            if (!description) 
                description = "";
        }
    },
    
    /**
     * This method is called when the HTTP request to get the requested stencil
     * set succeeds. The response is supposed to be a JSON representation
     * according to the stencil set specification.
     * @param {Object} response The JSON representation according to the
     * 			stencil set specification.
     */
    _init: function(response){
    
        // init and check consistency.
        this.__handleStencilset(response);
		
		var pps = new Hash();
		
		// init property packages
		if(this._jsonObject.propertyPackages) {
			$A(this._jsonObject.propertyPackages).each((function(pp) {
				pps[pp.name] = pp.properties;
			}).bind(this));
		}
		
		var defaultPosition = 0;
		
        // init each stencil
        $A(this._jsonObject.stencils).each((function(stencil){
        	defaultPosition++;
        	
            // instantiate normally.
            var oStencil = new ORYX.Core.StencilSet.Stencil(stencil, this.namespace(), this._baseUrl, this, pps, defaultPosition);      
			this._stencils[oStencil.id()] = oStencil;
			this._availableStencils[oStencil.id()] = oStencil;
            
        }).bind(this));
    },
    
    _cancelInit: function(response){
        this.errornous = true;
    },
    
    toString: function(){
        return "StencilSet " + this.title() + " (" + this.namespace() + ")";
    }
});
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespace
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.StencilSet) {ORYX.Core.StencilSet = {};}

/**
 * Class StencilSets
 * uses Prototpye 1.5.0
 * uses Inheritance
 *
 * Singleton
 */
//storage for loaded stencil sets by namespace
ORYX.Core.StencilSet._stencilSetsByNamespace = new Hash();

//storage for stencil sets by url
ORYX.Core.StencilSet._stencilSetsByUrl = new Hash();	

//storage for stencil set namespaces by editor instances
ORYX.Core.StencilSet._StencilSetNSByEditorInstance = new Hash();

//storage for rules by editor instances
ORYX.Core.StencilSet._rulesByEditorInstance = new Hash();

/**
 * 
 * @param {String} editorId
 * 
 * @return {Hash} Returns a hash map with all stencil sets that are loaded by
 * 					the editor with the editorId.
 */
ORYX.Core.StencilSet.stencilSets = function(editorId) {
	var stencilSetNSs = ORYX.Core.StencilSet._StencilSetNSByEditorInstance[editorId];
	var stencilSets = new Hash();
	if(stencilSetNSs) {
		stencilSetNSs.each(function(stencilSetNS) {
			var stencilSet = ORYX.Core.StencilSet.stencilSet(stencilSetNS)
			stencilSets[stencilSet.namespace()] = stencilSet;
		});
	}
	return stencilSets;
};

/**
 * 
 * @param {String} namespace
 * 
 * @return {ORYX.Core.StencilSet.StencilSet} Returns the stencil set with the specified
 * 										namespace.
 * 
 * The method can handle namespace strings like
 *  http://www.example.org/stencilset
 *  http://www.example.org/stencilset#
 *  http://www.example.org/stencilset#ANode
 */
ORYX.Core.StencilSet.stencilSet = function(namespace) {
	ORYX.Log.trace("Getting stencil set %0", namespace);
	var splitted = namespace.split("#", 1);
	if(splitted.length === 1) {
		ORYX.Log.trace("Getting stencil set %0", splitted[0]);
		return ORYX.Core.StencilSet._stencilSetsByNamespace[splitted[0] + "#"];
	} else {
		return undefined;
	}
};

/**
 * 
 * @param {String} id
 * 
 * @return {ORYX.Core.StencilSet.Stencil} Returns the stencil specified by the id.
 * 
 * The id must be unique and contains the namespace of the stencil's stencil set.
 * e.g. http://www.example.org/stencilset#ANode
 */
ORYX.Core.StencilSet.stencil = function(id) {
	ORYX.Log.trace("Getting stencil for %0", id);
	var ss = ORYX.Core.StencilSet.stencilSet(id);
	if(ss) {
		return ss.stencil(id);
	} else {

		ORYX.Log.trace("Cannot fild stencil for %0", id);
		return undefined;
	}
};

/**
 * 
 * @param {String} editorId
 * 
 * @return {ORYX.Core.StencilSet.Rules} Returns the rules object for the editor
 * 									specified by its editor id.
 */
ORYX.Core.StencilSet.rules = function(editorId) {
	if(!ORYX.Core.StencilSet._rulesByEditorInstance[editorId]) {
		ORYX.Core.StencilSet._rulesByEditorInstance[editorId] = new ORYX.Core.StencilSet.Rules();;
	}
	return ORYX.Core.StencilSet._rulesByEditorInstance[editorId];
};

/**
 * 
 * @param {String} url
 * @param {String} editorId
 * 
 * Loads a stencil set from url, if it is not already loaded.
 * It also stores which editor instance loads the stencil set and 
 * initializes the Rules object for the editor instance.
 */
ORYX.Core.StencilSet.loadStencilSet = function(url, editorId) {
	var stencilSet = ORYX.Core.StencilSet._stencilSetsByUrl[url];

	if(!stencilSet) {
		//load stencil set
		stencilSet = new ORYX.Core.StencilSet.StencilSet(url);
		
		//store stencil set
		ORYX.Core.StencilSet._stencilSetsByNamespace[stencilSet.namespace()] = stencilSet;
		
		//store stencil set by url
		ORYX.Core.StencilSet._stencilSetsByUrl[url] = stencilSet;
	}
	
	var namespace = stencilSet.namespace();
	
	//store which editorInstance loads the stencil set
	if(ORYX.Core.StencilSet._StencilSetNSByEditorInstance[editorId]) {
		ORYX.Core.StencilSet._StencilSetNSByEditorInstance[editorId].push(namespace);
	} else {
		ORYX.Core.StencilSet._StencilSetNSByEditorInstance[editorId] = [namespace];
	}

	//store the rules for the editor instance
	if(ORYX.Core.StencilSet._rulesByEditorInstance[editorId]) {
		ORYX.Core.StencilSet._rulesByEditorInstance[editorId].initializeRules(stencilSet);
	} else {
		var rules = new ORYX.Core.StencilSet.Rules();
		rules.initializeRules(stencilSet);
		ORYX.Core.StencilSet._rulesByEditorInstance[editorId] = rules;
	}
};

/**
 * Returns the translation of an attribute in jsonObject specified by its name
 * according to navigator.language
 */
ORYX.Core.StencilSet.getTranslation = function(jsonObject, name) {
	var lang = ORYX.I18N.Language.toLowerCase();
	
	var result = jsonObject[name + "_" + lang];
	
	if(result)
		return result;
		
	result = jsonObject[name + "_" + lang.substr(0, 2)];
	
	if(result)
		return result;
		
	return jsonObject[name];
};
/**
 * Copyright (c) 2006
 * Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}


/**
 * @classDescription With Bounds you can set and get position and size of UIObjects.
 */
ORYX.Core.Command = Clazz.extend({

	/**
	 * Constructor
	 */
	construct: function() {

	},
	
	execute: function(){
		throw "Command.execute() has to be implemented!"
	},
	
	rollback: function(){
		throw "Command.rollback() has to be implemented!"
	}
	
	
 });/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}


/**
 * @classDescription With Bounds you can set and get position and size of UIObjects.
 */
ORYX.Core.Bounds = {

	/**
	 * Constructor
	 */
	construct: function() {
		this._changedCallbacks = []; //register a callback with changedCallacks.push(this.method.bind(this));
		this.a = {};
		this.b = {};
		this.set.apply(this, arguments);
		this.suspendChange = false;
		this.changedWhileSuspend = false;
	},
	
	/**
	 * Calls all registered callbacks.
	 */
	_changed: function(sizeChanged) {
		if(!this.suspendChange) {
			this._changedCallbacks.each(function(callback) {
				callback(this, sizeChanged);
			}.bind(this));
			this.changedWhileSuspend = false;
		} else
			this.changedWhileSuspend = true;
	},
	
	/**
	 * Registers a callback that is called, if the bounds changes.
	 * @param callback {Function} The callback function.
	 */
	registerCallback: function(callback) {
		if(!this._changedCallbacks.member(callback)) {
			this._changedCallbacks.push(callback);	
		}
	},
	
	/**
	 * Unregisters a callback.
	 * @param callback {Function} The callback function.
	 */
	unregisterCallback: function(callback) {
			this._changedCallbacks = this._changedCallbacks.without(callback);
	},
	
	/**
	 * Sets position and size of the shape dependent of four coordinates
	 * (set(ax, ay, bx, by);), two points (set({x: ax, y: ay}, {x: bx, y: by});)
	 * or one bound (set({a: {x: ax, y: ay}, b: {x: bx, y: by}});).
	 */
	set: function() {
		
		var changed = false;
		
		switch (arguments.length) {
		
			case 1:
				if(this.a.x !== arguments[0].a.x) {
					changed = true;
					this.a.x = arguments[0].a.x;
				}
				if(this.a.y !== arguments[0].a.y) {
					changed = true;
					this.a.y = arguments[0].a.y;
				}
				if(this.b.x !== arguments[0].b.x) {
					changed = true;
					this.b.x = arguments[0].b.x;
				}
				if(this.b.y !== arguments[0].b.y) {
					changed = true;
					this.b.y = arguments[0].b.y;
				}
				break;
			
			case 2:
				var ax = Math.min(arguments[0].x, arguments[1].x);
				var ay = Math.min(arguments[0].y, arguments[1].y);
				var bx = Math.max(arguments[0].x, arguments[1].x);
				var by = Math.max(arguments[0].y, arguments[1].y);
				if(this.a.x !== ax) {
					changed = true;
					this.a.x = ax;
				}
				if(this.a.y !== ay) {
					changed = true;
					this.a.y = ay;
				}
				if(this.b.x !== bx) {
					changed = true;
					this.b.x = bx;
				}
				if(this.b.y !== by) {
					changed = true;
					this.b.y = by;
				}
				break;
			
			case 4:
				var ax = Math.min(arguments[0], arguments[2]);
				var ay = Math.min(arguments[1], arguments[3]);
				var bx = Math.max(arguments[0], arguments[2]);
				var by = Math.max(arguments[1], arguments[3]);
				if(this.a.x !== ax) {
					changed = true;
					this.a.x = ax;
				}
				if(this.a.y !== ay) {
					changed = true;
					this.a.y = ay;
				}
				if(this.b.x !== bx) {
					changed = true;
					this.b.x = bx;
				}
				if(this.b.y !== by) {
					changed = true;
					this.b.y = by;
				}
				break;
		}
		
		if(changed) {
			this._changed(true);
		}
	},
	
	/**
	 * Moves the bounds so that the point p will be the new upper left corner.
	 * @param {Point} p
	 * or
	 * @param {Number} x
	 * @param {Number} y
	 */
	moveTo: function() {
		
		var currentPosition = this.upperLeft();
		switch (arguments.length) {
			case 1:
				this.moveBy({
					x: arguments[0].x - currentPosition.x,
					y: arguments[0].y - currentPosition.y
				});
				break;
			case 2:
				this.moveBy({
					x: arguments[0] - currentPosition.x,
					y: arguments[1] - currentPosition.y
				});
				break;
			default:
				//TODO error
		}
		
	},
	
	/**
	 * Moves the bounds relatively by p.
	 * @param {Point} p
	 * or
	 * @param {Number} x
	 * @param {Number} y
	 * 
	 */
	moveBy: function() {
		var changed = false;
		
		switch (arguments.length) {
			case 1:
				var p = arguments[0];
				if(p.x !== 0 || p.y !== 0) {
					changed = true;
					this.a.x += p.x;
					this.b.x += p.x;
					this.a.y += p.y;
					this.b.y += p.y;
				}
				break;	
			case 2:
				var x = arguments[0];
				var y = arguments[1];
				if(x !== 0 || y !== 0) {
					changed = true;
					this.a.x += x;
					this.b.x += x;
					this.a.y += y;
					this.b.y += y;
				}
				break;	
			default:
				//TODO error
		}
		
		if(changed) {
			this._changed();
		}
	},
	
	/***
	 * Includes the bounds b into the current bounds.
	 * @param {Bounds} b
	 */
	include: function(b) {
		
		if( (this.a.x === undefined) && (this.a.y === undefined) &&
			(this.b.x === undefined) && (this.b.y === undefined)) {
			return b;
		};
		
		var cx = Math.min(this.a.x,b.a.x);
		var cy = Math.min(this.a.y,b.a.y);
		
		var dx = Math.max(this.b.x,b.b.x);
		var dy = Math.max(this.b.y,b.b.y);

		
		this.set(cx, cy, dx, dy);
	},
	
	/**
	 * Relatively extends the bounds by p.
	 * @param {Point} p
	 */
	extend: function(p) {
		
		if(p.x !== 0 || p.y !== 0) {
			// this is over cross for the case that a and b have same coordinates.
			//((this.a.x > this.b.x) ? this.a : this.b).x += p.x;
			//((this.b.y > this.a.y) ? this.b : this.a).y += p.y;
			this.b.x += p.x;
			this.b.y += p.y;
			
			this._changed(true);
		}
	},
	
	/**
	 * Widens the scope of the bounds by x.
	 * @param {Number} x
	 */
	widen: function(x) {
		if (x !== 0) {
			this.suspendChange = true;
			this.moveBy({x: -x, y: -x});
			this.extend({x: 2*x, y: 2*x});
			this.suspendChange = false;
			if(this.changedWhileSuspend) {
				this._changed(true);
			}
		}
	},
	
	/**
	 * Returns the upper left corner's point regardless of the
	 * bound delimiter points.
	 */
	upperLeft: function() {
		
		return {x:this.a.x, y:this.a.y};
	},
	
	/**
	 * Returns the lower Right left corner's point regardless of the
	 * bound delimiter points.
	 */
	lowerRight: function() {
		
		return {x:this.b.x, y:this.b.y};
	},
	
	/**
	 * @return {Number} Width of bounds.
	 */
	width: function() {
		return this.b.x - this.a.x;
	},
	
	/**
	 * @return {Number} Height of bounds.
	 */
	height: function() {
		return this.b.y - this.a.y;
	},
	
	/**
	 * @return {Point} The center point of this bounds.
	 */
	center: function() {
		return {
			x: (this.a.x + this.b.x)/2.0, 
			y: (this.a.y + this.b.y)/2.0
		};
	},

	
	/**
	 * @return {Point} The center point of this bounds relative to upperLeft.
	 */
	midPoint: function() {
		return {
			x: (this.b.x - this.a.x)/2.0, 
			y: (this.b.y - this.a.y)/2.0
		};
	},
		
	/**
	 * Moves the center point of this bounds to the new position.
	 * @param p {Point} 
	 * or
	 * @param x {Number}
	 * @param y {Number}
	 */
	centerMoveTo: function() {
		var currentPosition = this.center();
		
		switch (arguments.length) {
			
			case 1:
				this.moveBy(arguments[0].x - currentPosition.x,
							arguments[0].y - currentPosition.y);
				break;
			
			case 2:
				this.moveBy(arguments[0] - currentPosition.x,
							arguments[1] - currentPosition.y);
				break;
		}
	},
	
	isIncluded: function(point, offset) {
		
		var pointX, pointY, offset;

		// Get the the two Points	
		switch(arguments.length) {
			case 1:
				pointX = arguments[0].x;
				pointY = arguments[0].y;
				offset = 0;
				
				break;
			case 2:
				if(arguments[0].x && arguments[0].y) {
					pointX = arguments[0].x;
					pointY = arguments[0].y;
					offset = Math.abs(arguments[1]);
				} else {
					pointX = arguments[0];
					pointY = arguments[1];
					offset = 0;
				}
				break;
			case 3:
				pointX = arguments[0];
				pointY = arguments[1];
				offset = Math.abs(arguments[2]);
				break;
			default:
				throw "isIncluded needs one, two or three arguments";
		}
				
		var ul = this.upperLeft();
		var lr = this.lowerRight();
		
		if(pointX >= ul.x - offset 
			&& pointX <= lr.x + offset && pointY >= ul.y - offset 
			&& pointY <= lr.y + offset)
			return true;
		else 
			return false;
	},
	
	/**
	 * @return {Bounds} A copy of this bounds.
	 */
	clone: function() {
		
		//Returns a new bounds object without the callback
		// references of the original bounds
		return new ORYX.Core.Bounds(this);
	},
	
	toString: function() {
		
		return "( "+this.a.x+" | "+this.a.y+" )/( "+this.b.x+" | "+this.b.y+" )";
	},
	
	serializeForERDF: function() {

		return this.a.x+","+this.a.y+","+this.b.x+","+this.b.y;
	}
 };
 
ORYX.Core.Bounds = Clazz.extend(ORYX.Core.Bounds);/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}


/**
 * @classDescription Abstract base class for all objects that have a graphical representation
 * within the editor.
 * @extends Clazz
 */
ORYX.Core.UIObject = {
	/**
	 * Constructor of the UIObject class.
	 */
	construct: function(options) {	
		
		this.isChanged = true;			//Flag, if UIObject has been changed since last update.
		this.isResized = true;
		this.isVisible = true;			//Flag, if UIObject's display attribute is set to 'inherit' or 'none'
		this.isSelectable = false;		//Flag, if UIObject is selectable.
		this.isResizable = false;		//Flag, if UIObject is resizable.
		this.isMovable = false;			//Flag, if UIObject is movable.
		
		this.id = ORYX.Editor.provideId();	//get unique id
		this.parent = undefined;		//parent is defined, if this object is added to another uiObject.
		this.node = undefined;			//this is a reference to the SVG representation, either locally or in DOM.
		this.children = [];				//array for all add uiObjects
		
		this.bounds = new ORYX.Core.Bounds();		//bounds with undefined values

		this._changedCallback = this._changed.bind(this);	//callback reference for calling _changed
		this.bounds.registerCallback(this._changedCallback);	//set callback in bounds
		
		if(options && options.eventHandlerCallback) {
			this.eventHandlerCallback = options.eventHandlerCallback;
		}
	},
	
	/**
	 * Sets isChanged flag to true. Callback for the bounds object.
	 */
	_changed: function(bounds, isResized) {
		this.isChanged = true;
		if(this.bounds == bounds)
			this.isResized = isResized || this.isResized;
	},
	
	/**
	 * If something changed, this method calls the refresh method that must be implemented by subclasses.
	 */
	update: function() {
		if(this.isChanged) {
			this.refresh();
			this.isChanged = false;
			
			//call update of all children
			this.children.each(function(value) {
				value.update();
			});
		}
	},
	
	/**
	 * Is called in update method, if isChanged is set to true. Sub classes should call the super class method.
	 */
	refresh: function() {
		
	},
	
	/**
	 * @return {Array} Array of all child UIObjects.
	 */
	getChildren: function() {
		return this.children.clone();
	},
	
	/**
	 * @return {Array} Array of all parent UIObjects.
	 */
	getParents: function(){
		var parents = [];
		var parent = this.parent;
		while(parent){
			parents.push(parent);
			parent = parent.parent;
		}
		return parents;
	},
	
	/**
	 * Returns TRUE if the given parent is one of the UIObjects parents or the UIObject themselves, otherwise FALSE.
	 * @param {UIObject} parent
	 * @return {Boolean} 
	 */
	isParent: function(parent){
		var cparent = this;
		while(cparent){
			if (cparent === parent){
				return true;
			}
			cparent = cparent.parent;
		}
		return false;
	},
	
	/**
	 * @return {String} Id of this UIObject
	 */
	getId: function() {
		return this.id;
	},
	
	/**
	 * Method for accessing child uiObjects by id.
	 * @param {String} id
	 * @param {Boolean} deep
	 * 
	 * @return {UIObject} If found, it returns the UIObject with id.
	 */
	getChildById: function(id, deep) {
		return this.children.find(function(uiObj) {
			if(uiObj.getId() === id) {
				return uiObj;
			} else {
				if(deep) {
					var obj = uiObj.getChildById(id, deep);
					if(obj) {
						return obj;
					}
				}
			}
		});
	},
	
	/**
	 * Adds an UIObject to this UIObject and sets the parent of the
	 * added UIObject. It is also added to the SVG representation of this
	 * UIObject.
	 * @param {UIObject} uiObject
	 */
	add: function(uiObject) {
		//add uiObject, if it is not already a child of this object
		if (!(this.children.member(uiObject))) {
			//if uiObject is child of another parent, remove it from that parent.
			if(uiObject.parent) {
				uiObject.remove(uiObject);
			}
			
			//add uiObject to children
			this.children.push(uiObject);
			
			//set parent reference
			uiObject.parent = this;
			
			//add uiObject.node to this.node
			uiObject.node = this.node.appendChild(uiObject.node);
			
			//register callback to get informed, if child is changed
			uiObject.bounds.registerCallback(this._changedCallback);

			//uiObject.update();
		} else {
			ORYX.Log.info("add: ORYX.Core.UIObject is already a child of this object.");
		}
	},
	
	/**
	 * Removes UIObject from this UIObject. The SVG representation will also
	 * be removed from this UIObject's SVG representation.
	 * @param {UIObject} uiObject
	 */
	remove: function(uiObject) {
		//if uiObject is a child of this object, remove it.
		if (this.children.member(uiObject)) {
			//remove uiObject from children
			this.children = this._uiObjects.without(uiObject);
			
			//delete parent reference of uiObject
			uiObject.parent = undefined;
			
			//delete uiObject.node from this.node
			uiObject.node = this.node.removeChild(uiObject.node);
			
			//unregister callback to get informed, if child is changed
			uiObject.bounds.unregisterCallback(this._changedCallback);
		} else {
			ORYX.Log.info("remove: ORYX.Core.UIObject is not a child of this object.");
		}
		
	},
	
	/**
	 * Calculates absolute bounds of this UIObject.
	 */
	absoluteBounds: function() {
		if(this.parent) {
			var absUL = this.absoluteXY();
			return new ORYX.Core.Bounds(absUL.x, absUL.y,
							absUL.x + this.bounds.width(),
							absUL.y + this.bounds.height());
		} else {
			return this.bounds.clone();
		}
	},

	/**
	 * @return {Point} The absolute position of this UIObject.
	 */
	absoluteXY: function() {
		if(this.parent) {
			var pXY = this.parent.absoluteXY();		
			return {x: pXY.x + this.bounds.upperLeft().x , y: pXY.y + this.bounds.upperLeft().y};
			
		} else {
			return {x: this.bounds.upperLeft().x , y: this.bounds.upperLeft().y};
		}
	},

	/**
	 * @return {Point} The absolute position from the Center of this UIObject.
	 */
	absoluteCenterXY: function() {
		if(this.parent) {
			var pXY = this.parent.absoluteXY();		
			return {x: pXY.x + this.bounds.center().x , y: pXY.y + this.bounds.center().y};
			
		} else {
			return {x: this.bounds.center().x , y: this.bounds.center().y};
		}
	},
	
	/**
	 * Hides this UIObject and all its children.
	 */
	hide: function() {
		this.node.setAttributeNS(null, 'display', 'none');
		this.isVisible = false;
		this.children.each(function(uiObj) {
			uiObj.hide();	
		});
	},
	
	/**
	 * Enables visibility of this UIObject and all its children.
	 */
	show: function() {
		this.node.setAttributeNS(null, 'display', 'inherit');
		this.isVisible = true;
		this.children.each(function(uiObj) {
			uiObj.show();	
		});		
	},
	
	addEventHandlers: function(node) {
		
		node.addEventListener(ORYX.CONFIG.EVENT_MOUSEDOWN, this._delegateEvent.bind(this), false);
		node.addEventListener(ORYX.CONFIG.EVENT_MOUSEMOVE, this._delegateEvent.bind(this), false);	
		node.addEventListener(ORYX.CONFIG.EVENT_MOUSEUP, this._delegateEvent.bind(this), false);
		node.addEventListener(ORYX.CONFIG.EVENT_MOUSEOVER, this._delegateEvent.bind(this), false);
		node.addEventListener(ORYX.CONFIG.EVENT_MOUSEOUT, this._delegateEvent.bind(this), false);
		node.addEventListener('click', this._delegateEvent.bind(this), false);
		node.addEventListener(ORYX.CONFIG.EVENT_DBLCLICK, this._delegateEvent.bind(this), false);
			
	},
		
	_delegateEvent: function(event) {
		if(this.eventHandlerCallback) {
			this.eventHandlerCallback(event, this);
		}
	},
	
	toString: function() { return "UIObject " + this.id }
 };
 ORYX.Core.UIObject = Clazz.extend(ORYX.Core.UIObject);/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}

/**
 * Top Level uiobject.
 * @class ORYX.Core.AbstractShape
 * @extends ORYX.Core.UIObject
 */
ORYX.Core.AbstractShape = ORYX.Core.UIObject.extend(
/** @lends ORYX.Core.AbstractShape.prototype */
{

	/**
	 * Constructor
	 */
	construct: function(options, stencil) {
		
		arguments.callee.$.construct.apply(this, arguments);
		
		this.resourceId = ORYX.Editor.provideId(); //Id of resource in DOM
		
		// stencil reference
		this._stencil = stencil;
		// if the stencil defines a super stencil that should be used for its instances, set it.
		if (this._stencil._jsonStencil.superId){
			stencilId = this._stencil.id()
			superStencilId = stencilId.substring(0, stencilId.indexOf("#") + 1) + stencil._jsonStencil.superId;
			stencilSet =  this._stencil.stencilSet();
			this._stencil = stencilSet.stencil(superStencilId);
		}
		
		//Hash map for all properties. Only stores the values of the properties.
		this.properties = new Hash();
		this.propertiesChanged = new Hash();

		// List of properties which are not included in the stencilset, 
		// but which gets (de)serialized
		this.hiddenProperties = new Hash();
		
		
		//Initialization of property map and initial value.
		this._stencil.properties().each((function(property) {
			var key = property.prefix() + "-" + property.id();
			this.properties[key] = property.value();
			this.propertiesChanged[key] = true;
		}).bind(this));
		
		// if super stencil was defined, also regard stencil's properties:
		if (stencil._jsonStencil.superId) {
			stencil.properties().each((function(property) {
				var key = property.prefix() + "-" + property.id();
				var value = property.value();
				var oldValue = this.properties[key];
				this.properties[key] = value;
				this.propertiesChanged[key] = true;

				// Raise an event, to show that the property has changed
				// required for plugins like processLink.js
				//window.setTimeout( function(){

					this._delegateEvent({
							type	: ORYX.CONFIG.EVENT_PROPERTY_CHANGED, 
							name	: key, 
							value	: value,
							oldValue: oldValue
						});

				//}.bind(this), 10)

			}).bind(this));
		}

	},

	layout: function() {

	},
	
	/**
	 * Returns the stencil object specifiing the type of the shape.
	 */
	getStencil: function() {
		return this._stencil;
	},
	
	/**
	 * 
	 * @param {Object} resourceId
	 */
	getChildShapeByResourceId: function(resourceId) {

		resourceId = ERDF.__stripHashes(resourceId);
		
		return this.getChildShapes(true).find(function(shape) {
					return shape.resourceId == resourceId
				});
	},
	/**
	 * 
	 * @param {Object} deep
	 * @param {Object} iterator
	 */
	getChildShapes: function(deep, iterator) {
		var result = [];

		this.children.each(function(uiObject) {
			if(uiObject instanceof ORYX.Core.Shape && uiObject.isVisible ) {
				if(iterator) {
					iterator(uiObject);
				}
				result.push(uiObject);
				if(deep) {
					result = result.concat(uiObject.getChildShapes(deep, iterator));
				} 
			}
		});

		return result;
	},
    
    /**
     * @param {Object} shape
     * @return {boolean} true if any of shape's childs is given shape
     */
    hasChildShape: function(shape){
        return this.getChildShapes().any(function(child){
            return (child === shape) || child.hasChildShape(shape);
        });
    },
	
	/**
	 * 
	 * @param {Object} deep
	 * @param {Object} iterator
	 */
	getChildNodes: function(deep, iterator) {
		var result = [];

		this.children.each(function(uiObject) {
			if(uiObject instanceof ORYX.Core.Node && uiObject.isVisible) {
				if(iterator) {
					iterator(uiObject);
				}
				result.push(uiObject);
			}
			if(uiObject instanceof ORYX.Core.Shape) {
				if(deep) {
					result = result.concat(uiObject.getChildNodes(deep, iterator));
				}
			}
		});

		return result;
	},
	
	/**
	 * 
	 * @param {Object} deep
	 * @param {Object} iterator
	 */
	getChildEdges: function(deep, iterator) {
		var result = [];

		this.children.each(function(uiObject) {
			if(uiObject instanceof ORYX.Core.Edge && uiObject.isVisible) {
				if(iterator) {
					iterator(uiObject);
				}
				result.push(uiObject);
			}
			if(uiObject instanceof ORYX.Core.Shape) {
				if(deep) {
					result = result.concat(uiObject.getChildEdges(deep, iterator));
				}
			}
		});

		return result;
	},
	
	/**
	 * Returns a sorted array of ORYX.Core.Node objects.
	 * Ordered in z Order, the last object has the highest z Order.
	 */
	//TODO deep iterator
	getAbstractShapesAtPosition: function() {
		var x, y;
		switch (arguments.length) {
			case 1:
				x = arguments[0].x;
				y = arguments[0].y;
				break;
			case 2:	//two or more arguments
				x = arguments[0];
				y = arguments[1];
				break;
			default:
				throw "getAbstractShapesAtPosition needs 1 or 2 arguments!"
		}

		if(this.isPointIncluded(x, y)) {

			var result = [];
			result.push(this);

			//check, if one child is at that position						
			
			
			var childNodes = this.getChildNodes();
			var childEdges = this.getChildEdges();
			
			[childNodes, childEdges].each(function(ne){
				var nodesAtPosition = new Hash();
				
				ne.each(function(node) {
					if(!node.isVisible){ return }
					var candidates = node.getAbstractShapesAtPosition( x , y );
					if(candidates.length > 0) {
						var nodesInZOrder = $A(node.node.parentNode.childNodes);
						var zOrderIndex = nodesInZOrder.indexOf(node.node);
						nodesAtPosition[zOrderIndex] = candidates;
					}
				});
				
				nodesAtPosition.keys().sort().each(function(key) {
					result = result.concat(nodesAtPosition[key]);
				});
 			});
						
			return result;
			
		} else {
			return [];
		}
	},
	
	/**
	 * 
	 * @param key {String} Must be 'prefix-id' of property
	 * @param value {Object} Can be of type String or Number according to property type.
	 */
	setProperty: function(key, value, force) {
		var oldValue = this.properties[key];
		if(oldValue !== value || force === true) {
			this.properties[key] = value;
			this.propertiesChanged[key] = true;
			this._changed();
			
			// Raise an event, to show that the property has changed
			//window.setTimeout( function(){

			if (!this._isInSetProperty) {
				this._isInSetProperty = true;
				
				this._delegateEvent({
						type	: ORYX.CONFIG.EVENT_PROPERTY_CHANGED, 
						elements : [this],
						name	: key, 
						value	: value,
						oldValue: oldValue
					});
				
				delete this._isInSetProperty;
			}
			//}.bind(this), 10)
		}
	},
	
	/**
	 * Returns TRUE if one of the properties is flagged as dirty
	 * @return {boolean}
	 */
	isPropertyChanged: function(){
		return this.propertiesChanged.any(function(property){ return property.value });
	},

	/**
	 * 
	 * @param {String} Must be 'prefix-id' of property
	 * @param {Object} Can be of type String or Number according to property type.
	 */
	setHiddenProperty: function(key, value) {
		// IF undefined, Delete
		if (value === undefined) {
			delete this.hiddenProperties[key];
			return;
		}
		var oldValue = this.hiddenProperties[key];
		if (oldValue !== value) {
			this.hiddenProperties[key] = value;
		}
	},
	/**
	 * Calculate if the point is inside the Shape
	 * @param {Point}
	 */
	isPointIncluded: function(pointX, pointY, absoluteBounds) {
		var absBounds = absoluteBounds ? absoluteBounds : this.absoluteBounds();
		return absBounds.isIncluded(pointX, pointY);
				
	},
	
	/**
	 * Get the serialized object
	 * return Array with hash-entrees (prefix, name, value)
	 * Following values will given:
	 * 		Type
	 * 		Properties
	 */
	serialize: function() {
		var serializedObject = [];
		
		// Add the type
		serializedObject.push({name: 'type', prefix:'oryx', value: this.getStencil().id(), type: 'literal'});	
	
		// Add hidden properties
		this.hiddenProperties.each(function(prop){
			serializedObject.push({name: prop.key.replace("oryx-", ""), prefix: "oryx", value: prop.value, type: 'literal'});
		}.bind(this));
		
		// Add all properties
		this.getStencil().properties().each((function(property){
			
			var prefix = property.prefix();	// Get prefix
			var name = property.id();		// Get name
			
			//if(typeof this.properties[prefix+'-'+name] == 'boolean' || this.properties[prefix+'-'+name] != "")
				serializedObject.push({name: name, prefix: prefix, value: this.properties[prefix+'-'+name], type: 'literal'});

		}).bind(this));
		
		return serializedObject;
	},
		
		
	deserialize: function(serialize){
		// Search in Serialize
		var initializedDocker = 0;
		
		// Sort properties so that the hidden properties are first in the list
		serialize = serialize.sort(function(a,b){ a = Number(this.properties.keys().member(a.prefix+"-"+a.name)); b = Number(this.properties.keys().member(b.prefix+"-"+b.name)); return a > b ? 1 : (a < b ? -1 : 0) }.bind(this));
		
		serialize.each((function(obj){
			
			var name 	= obj.name;
			var prefix 	= obj.prefix;
			var value 	= obj.value;
            
            // Complex properties can be real json objects, encode them to a string
            if(Ext.type(value) === "object") value = Ext.encode(value);

			switch(prefix + "-" + name){
				case 'raziel-parent': 
							// Set parent
							if(!this.parent) {break};
							
							// Set outgoing Shape
							var parent = this.getCanvas().getChildShapeByResourceId(value);
							if(parent) {
								parent.add(this);
							}
							
							break;											
				default:
							// If list, eval as an array
							var prop = this.getStencil().property(prefix+"-"+name);
							if (prop && prop.isList() && typeof value === "string"){
								if ((value||"").strip()&&!value.startsWith("[")&&!value.startsWith("]"))
									value = "[\""+value.strip()+"\"]";
								value = ((value||"").strip()||"[]").evalJSON();
							}
							
							// Set property
							if(this.properties.keys().member(prefix+"-"+name)) {
								this.setProperty(prefix+"-"+name, value);
							} else if(!(name === "bounds"||name === "parent"||name === "target"||name === "dockers"||name === "docker"||name === "outgoing"||name === "incoming")) {
								this.setHiddenProperty(prefix+"-"+name, value);
							}
					
			}
		}).bind(this));
	},
	
	toString: function() { return "ORYX.Core.AbstractShape " + this.id },
    
    /**
     * Converts the shape to a JSON representation.
     * @return {Object} A JSON object with included ORYX.Core.AbstractShape.JSONHelper and getShape() method.
     */
    toJSON: function(){
        var json = {
            resourceId: this.resourceId,
            properties: Ext.apply({}, this.properties, this.hiddenProperties).inject({}, function(props, prop){
              var key = prop[0];
              var value = prop[1];
                
              //If complex property, value should be a json object
              if ( this.getStencil().property(key)
                	&& this.getStencil().property(key).type() === ORYX.CONFIG.TYPE_COMPLEX 
                	&& Ext.type(value) === "string"){
						
                  try {value = Ext.decode(value);} catch(error){}
              
			  // Parse date
			  } else if (value instanceof Date&&this.getStencil().property(key)){
			  	try {
					value = value.format(this.getStencil().property(key).dateFormat());
				} catch(e){}
			  }
              
              //Takes "my_property" instead of "oryx-my_property" as key
              key = key.replace(/^[\w_]+-/, "");
              props[key] = value;
              
              return props;
            }.bind(this)),
            stencil: {
                id: this.getStencil().idWithoutNs()
            },
            childShapes: this.getChildShapes().map(function(shape){
                return shape.toJSON()
            })
        };
        
        if(this.getOutgoingShapes){
            json.outgoing = this.getOutgoingShapes().map(function(shape){
                return {
                    resourceId: shape.resourceId
                };
            });
        }
        
        if(this.bounds){
            json.bounds = { 
                lowerRight: this.bounds.lowerRight(), 
                upperLeft: this.bounds.upperLeft() 
            };
        }
        
        if(this.dockers){
            json.dockers = this.dockers.map(function(docker){
                var d = docker.getDockedShape() && docker.referencePoint ? docker.referencePoint : docker.bounds.center();
                d.getDocker = function(){return docker;};
                return d;
            })
        }
        
        Ext.apply(json, ORYX.Core.AbstractShape.JSONHelper);
        
        // do not pollute the json attributes (for serialization), so put the corresponding
        // shape is encapsulated in a method
        json.getShape = function(){
            return this;
        }.bind(this);
        
        return json;
    }
 });
 
/**
 * @namespace Collection of methods which can be used on a shape json object (ORYX.Core.AbstractShape#toJSON()).
 * @example
 * Ext.apply(shapeAsJson, ORYX.Core.AbstractShape.JSONHelper);
 */
ORYX.Core.AbstractShape.JSONHelper = {
     /**
      * Iterates over each child shape.
      * @param {Object} iterator Iterator function getting a child shape and his parent as arguments.
      * @param {boolean} [deep=false] Iterate recursively (childShapes of childShapes)
      * @param {boolean} [modify=false] If true, the result of the iterator function is taken as new shape, return false to delete it. This enables modifying the object while iterating through the child shapes.
      * @example
      * // Increases the lowerRight x value of each direct child shape by one. 
      * myShapeAsJson.eachChild(function(shape, parentShape){
      *     shape.bounds.lowerRight.x = shape.bounds.lowerRight.x + 1;
      *     return shape;
      * }, false, true);
      */
     eachChild: function(iterator, deep, modify){
         if(!this.childShapes) return;
         
         var newChildShapes = []; //needed if modify = true
         
         this.childShapes.each(function(shape){
		 	 if (!(shape.eachChild instanceof Function)){
				Ext.apply(shape, ORYX.Core.AbstractShape.JSONHelper);
			 }
             var res = iterator(shape, this);
             if(res) newChildShapes.push(res); //if false is returned, and modify = true, current shape is deleted.
             
             if(deep) shape.eachChild(iterator, deep, modify);
         }.bind(this));
         
         if(modify) this.childShapes = newChildShapes;
     },
     
	 getShape: function(){
	 	return null;
	 },
     getChildShapes: function(deep){
         var allShapes = this.childShapes;
         
         if(deep){
             this.eachChild(function(shape){
			 	 if (!(shape.getChildShapes instanceof Function)){
					Ext.apply(shape, ORYX.Core.AbstractShape.JSONHelper);
				 }
                 allShapes = allShapes.concat(shape.getChildShapes(deep));
             }, true);
         }
         
         return allShapes;
     },
     
     /**
      * @return {String} Serialized JSON object
      */
     serialize: function(){
         return Ext.encode(this);
     }
 }
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}

/**
   @namespace Namespace for the Oryx core elements.
   @name ORYX.Core
*/
if(!ORYX.Core) {ORYX.Core = {};}

/**
 * @class Oryx canvas.
 * @extends ORYX.Core.AbstractShape
 *
 */
ORYX.Core.Canvas = ORYX.Core.AbstractShape.extend({
    /** @lends ORYX.Core.Canvas.prototype */

	/**
	 * Defines the current zoom level
	 */
	zoomLevel:1,

	/**
	 * Constructor
	 */
	construct: function(options) {
		arguments.callee.$.construct.apply(this, arguments);

		if(!(options && options.width && options.height)) {
		
			ORYX.Log.fatal("Canvas is missing mandatory parameters options.width and options.height.");
			return;
		}
			
		//TODO: set document resource id
		this.resourceId = options.id;

		this.nodes = [];
		
		this.edges = [];
		
		//init svg document
		this.rootNode = ORYX.Editor.graft("http://www.w3.org/2000/svg", options.parentNode,
			['svg', {id: this.id, width: options.width, height: options.height},
				['defs', {}]
			]);
			
		this.rootNode.setAttribute("xmlns:xlink", "http://www.w3.org/1999/xlink");
		this.rootNode.setAttribute("xmlns:svg", "http://www.w3.org/2000/svg");

		this._htmlContainer = ORYX.Editor.graft("http://www.w3.org/1999/xhtml", options.parentNode,
			['div', {id: "oryx_canvas_htmlContainer", style:"position:absolute; top:5px"}]);
		
		this.node = ORYX.Editor.graft("http://www.w3.org/2000/svg", this.rootNode,
			['g', {},
				['g', {"class": "stencils"},
					['g', {"class": "me"}],
					['g', {"class": "children"}],
					['g', {"class": "edge"}]
				],
				['g', {"class":"svgcontainer"}]
			]);
		
		/*
		var off = 2 * ORYX.CONFIG.GRID_DISTANCE;
		var size = 3;
		var d = "";
		for(var i = 0; i <= options.width; i += off)
			for(var j = 0; j <= options.height; j += off)
				d = d + "M" + (i - size) + " " + j + " l" + (2*size) + " 0 m" + (-size) + " " + (-size) + " l0 " + (2*size) + " m0" + (-size) + " ";
							
		ORYX.Editor.graft("http://www.w3.org/2000/svg", this.node.firstChild.firstChild,
			['path', {d:d , stroke:'#000000', 'stroke-width':'0.15px'},]);
		*/
		
		//Global definition of default font for shapes
		//Definitions in the SVG definition of a stencil will overwrite these settings for
		// that stencil.
		/*if(navigator.platform.indexOf("Mac") > -1) {
			this.node.setAttributeNS(null, 'stroke', 'black');
			this.node.setAttributeNS(null, 'stroke-width', '0.5px');
			this.node.setAttributeNS(null, 'font-family', 'Skia');
			//this.node.setAttributeNS(null, 'letter-spacing', '2px');
			this.node.setAttributeNS(null, 'font-size', ORYX.CONFIG.LABEL_DEFAULT_LINE_HEIGHT);
		} else {
			this.node.setAttributeNS(null, 'stroke', 'none');
			this.node.setAttributeNS(null, 'font-family', 'Verdana');
			this.node.setAttributeNS(null, 'font-size', ORYX.CONFIG.LABEL_DEFAULT_LINE_HEIGHT);
		}*/
		
		this.node.setAttributeNS(null, 'stroke', 'black');
		this.node.setAttributeNS(null, 'font-family', 'Verdana, sans-serif');
		this.node.setAttributeNS(null, 'font-size-adjust', 'none');
		this.node.setAttributeNS(null, 'font-style', 'normal');
		this.node.setAttributeNS(null, 'font-variant', 'normal');
		this.node.setAttributeNS(null, 'font-weight', 'normal');
		this.node.setAttributeNS(null, 'line-heigth', 'normal');
		
		this.node.setAttributeNS(null, 'font-size', ORYX.CONFIG.LABEL_DEFAULT_LINE_HEIGHT);
			
		this.bounds.set(0,0,options.width, options.height);
		
		this.addEventHandlers(this.rootNode.parentNode);
		
		//disable context menu
		this.rootNode.oncontextmenu = function() {return false;};
	},
	
	getScrollNode: function(){
		return Ext.get(this.rootNode).parent("div{overflow=auto}", true);	
	},
	
	focus: function(){
		
		try {
			// Get a href
			if (!this.focusEl) {
				this.focusEl = Ext.getBody().createChild({
					tag: "a",
					href: "#",
					cls: "x-grid3-focus x-grid3-focus-canvas",
					tabIndex: "-1"
				});
				this.focusEl.swallowEvent("click", true);
			}
			
			// Focus it
			if (Ext.isGecko) {
				this.focusEl.focus();
			}
			else {
				this.focusEl.focus.defer(1, this.focusEl);
			}
			this.focusEl.blur.defer(3, this.focusEl);
			
		} catch(e){}
	},
	
	update: function() {
		
		this.nodes.each(function(node) {
			this._traverseForUpdate(node);
		}.bind(this));
		
		// call stencil's layout callback
		// (needed for row layouting of xforms)
		//this.getStencil().layout(this);
		
		var layoutEvents = this.getStencil().layout();
		
		if(layoutEvents) {
			layoutEvents.each(function(event) {
		
				// setup additional attributes
				event.shape = this;
				event.forceExecution = true;
				event.target = this.rootNode;
				
				// do layouting
				
				this._delegateEvent(event);
			}.bind(this))
		}
		
		this.nodes.invoke("_update");
		
		this.edges.invoke("_update", true);
		
		/*this.children.each(function(child) {
			child._update();
		});*/
	},
	
	_traverseForUpdate: function(shape) {
		var childRet = shape.isChanged;
		shape.getChildNodes(false, function(child) {
			if(this._traverseForUpdate(child)) {
				childRet = true;
			}
		}.bind(this));
		
		if(childRet) {
			shape.layout();
			return true;
		} else {
			return false;
		}
	},
	
	layout: function() {
		
		
		
	},
	
	/**
	 * 
	 * @param {Object} deep
	 * @param {Object} iterator
	 */
	getChildNodes: function(deep, iterator) {
		if(!deep && !iterator) {
			return this.nodes.clone();
		} else {
			var result = [];
			this.nodes.each(function(uiObject) {
				if(iterator) {
					iterator(uiObject);
				}
				result.push(uiObject);
				
				if(deep && uiObject instanceof ORYX.Core.Shape) {
					result = result.concat(uiObject.getChildNodes(deep, iterator));
				}
			});
	
			return result;
		}
	},
	
	/**
	 * buggy crap! use base class impl instead! 
	 * @param {Object} iterator
	 */
/*	getChildEdges: function(iterator) {
		if(iterator) {
			this.edges.each(function(edge) {
				iterator(edge);
			});
		}
		
		return this.edges.clone();
	},
*/	
	/**
	 * Overrides the UIObject.add method. Adds uiObject to the correct sub node.
	 * @param {UIObject} uiObject
	 */
	add: function(uiObject, index, silent) {
		//if uiObject is child of another UIObject, remove it.
		if(uiObject instanceof ORYX.Core.UIObject) {
			if (!(this.children.member(uiObject))) {
				//if uiObject is child of another parent, remove it from that parent.
				if(uiObject.parent) {
					uiObject.parent.remove(uiObject, true);
				}

				//add uiObject to the Canvas
				//add uiObject to this Shape
				if(index != undefined)
					this.children.splice(index, 0, uiObject);
				else
					this.children.push(uiObject);

				//set parent reference
				uiObject.parent = this;

				//add uiObject.node to this.node depending on the type of uiObject
				if(uiObject instanceof ORYX.Core.Shape) {
					if(uiObject instanceof ORYX.Core.Edge) {
						uiObject.addMarkers(this.rootNode.getElementsByTagNameNS(NAMESPACE_SVG, "defs")[0]);
						uiObject.node = this.node.childNodes[0].childNodes[2].appendChild(uiObject.node);
						this.edges.push(uiObject);
					} else {
						uiObject.node = this.node.childNodes[0].childNodes[1].appendChild(uiObject.node);
						this.nodes.push(uiObject);
					}
				} else {	//UIObject
					uiObject.node = this.node.appendChild(uiObject.node);
				}

				uiObject.bounds.registerCallback(this._changedCallback);
					
				if(this.eventHandlerCallback && silent !== true)
					this.eventHandlerCallback({type:ORYX.CONFIG.EVENT_SHAPEADDED,shape:uiObject})
			} else {
				
				ORYX.Log.warn("add: ORYX.Core.UIObject is already a child of this object.");
			}
		} else {

			ORYX.Log.fatal("add: Parameter is not of type ORYX.Core.UIObject.");
		}
	},

	/**
	 * Overrides the UIObject.remove method. Removes uiObject.
	 * @param {UIObject} uiObject
	 */
	remove: function(uiObject, silent) {
		//if uiObject is a child of this object, remove it.
		if (this.children.member(uiObject)) {
			//remove uiObject from children
			var parent = uiObject.parent;
						
			this.children = this.children.without(uiObject);

			//delete parent reference of uiObject
			uiObject.parent = undefined;

			//delete uiObject.node from this.node
			if(uiObject instanceof ORYX.Core.Shape) {
				if(uiObject instanceof ORYX.Core.Edge) {
					uiObject.removeMarkers();
					uiObject.node = this.node.childNodes[0].childNodes[2].removeChild(uiObject.node);
					this.edges = this.edges.without(uiObject);
				} else {
					uiObject.node = this.node.childNodes[0].childNodes[1].removeChild(uiObject.node);
					this.nodes = this.nodes.without(uiObject);
				}
			} else {	//UIObject
					uiObject.node = this.node.removeChild(uiObject.node);
			}

			if(this.eventHandlerCallback && silent !== true)
				this.eventHandlerCallback({type:ORYX.CONFIG.EVENT_SHAPEREMOVED,shape:uiObject, parent:parent});
				
			uiObject.bounds.unregisterCallback(this._changedCallback);
		} else {

			ORYX.Log.warn("remove: ORYX.Core.UIObject is not a child of this object.");
		}
	},
    
    /**
     * Creates shapes out of the given collection of shape objects and adds them to the canvas.
     * @example 
     * canvas.addShapeObjects({
         bounds:{ lowerRight:{ y:510, x:633 }, upperLeft:{ y:146, x:210 } },
         resourceId:"oryx_F0715955-50F2-403D-9851-C08CFE70F8BD",
         childShapes:[],
         properties:{},
         stencil:{
           id:"Subprocess"
         },
         outgoing:[{resourceId: 'aShape'}],
         target: {resourceId: 'aShape'}
       });
     * @param {Object} shapeObjects 
     * @param {Function} [eventHandler] An event handler passed to each newly created shape (as eventHandlerCallback)
     * @return {Array} A collection of ORYX.Core.Shape
     * @methodOf ORYX.Core.Canvas.prototype
     */
    addShapeObjects: function(shapeObjects, eventHandler){
        if(!shapeObjects) return;
		
		this.initializingShapes = true;
        
        /*FIXME This implementation is very evil! At first, all shapes are created on
          canvas. In a second step, the attributes are applied. There must be a distinction
          between the configuration phase (where the outgoings, for example, are just named),
          and the creation phase (where the outgoings are evaluated). This must be reflected
          in code to provide a nicer API/ implementation!!! */
        
        var addShape = function(shape, parent){
            // Create a new Stencil
            var stencil = ORYX.Core.StencilSet.stencil(this.getStencil().namespace() + shape.stencil.id );

            // Create a new Shape
            var ShapeClass = (stencil.type() == "node") ? ORYX.Core.Node : ORYX.Core.Edge;
            var newShape = new ShapeClass(
              {'eventHandlerCallback': eventHandler},
              stencil);
            
            // Set the resource id
            newShape.resourceId = shape.resourceId;
            newShape.node.id = "svg-" + shape.resourceId;
			
            // Set parent to json object to be used later
            // Due to the nested json structure, normally shape.parent is not set/ must not be set. 
            // In special cases, it can be easier to set this directly instead of a nested structure.
            shape.parent = "#" + ((shape.parent && shape.parent.resourceId) || parent.resourceId);
            
            // Add the shape to the canvas
            this.add( newShape );

            return {
              json: shape,
              object: newShape
            };
        }.bind(this);
        
        /** Builds up recursively a flatted array of shapes, including a javascript object and json representation
         * @param {Object} shape Any object that has Object#childShapes
         */
        var addChildShapesRecursively = function(shape){
            var addedShapes = [];
        
            shape.childShapes.each(function(childShape){
              addedShapes.push(addShape(childShape, shape));
              addedShapes = addedShapes.concat(addChildShapesRecursively(childShape));
            });
            
            return addedShapes;
        }.bind(this);

        var shapes = addChildShapesRecursively({
            childShapes: shapeObjects, 
            resourceId: this.resourceId
        });
                    

        // prepare deserialisation parameter
        shapes.each(
            function(shape){
            	var properties = [];
                for(field in shape.json.properties){
                    properties.push({
                      prefix: 'oryx',
                      name: field,
                      value: shape.json.properties[field]
                    });
                  }
                  
                  // Outgoings
                  shape.json.outgoing.each(function(out){
                    properties.push({
                      prefix: 'raziel',
                      name: 'outgoing',
                      value: "#"+out.resourceId
                    });
                  });
                  
                  // Target 
                  // (because of a bug, the first outgoing is taken when there is no target,
                  // can be removed after some time)
                  if(shape.object instanceof ORYX.Core.Edge) {
	                  var target = shape.json.target || shape.json.outgoing[0];
	                  if(target){
	                    properties.push({
	                      prefix: 'raziel',
	                      name: 'target',
	                      value: "#"+target.resourceId
	                    });
	                  }
                  }
                  
                  // Bounds
                  if (shape.json.bounds) {
                      properties.push({
                          prefix: 'oryx',
                          name: 'bounds',
                          value: shape.json.bounds.upperLeft.x + "," + shape.json.bounds.upperLeft.y + "," + shape.json.bounds.lowerRight.x + "," + shape.json.bounds.lowerRight.y
                      });
                  }
                  
                  //Dockers [{x:40, y:50}, {x:30, y:60}] => "40 50 30 60  #"
                  if(shape.json.dockers){
                    properties.push({
                      prefix: 'oryx',
                      name: 'dockers',
                      value: shape.json.dockers.inject("", function(dockersStr, docker){
                        return dockersStr + docker.x + " " + docker.y + " ";
                      }) + " #"
                    });
                  }
                  
                  //Parent
                  properties.push({
                    prefix: 'raziel',
                    name: 'parent',
                    value: shape.json.parent
                  });
            
                  shape.__properties = properties;
	         }.bind(this)
        );
  
        // Deserialize the properties from the shapes
        // This can't be done earlier because Shape#deserialize expects that all referenced nodes are already there
        
        // first, deserialize all nodes
        shapes.each(function(shape) {
        	if(shape.object instanceof ORYX.Core.Node) {
        		shape.object.deserialize(shape.__properties, shape.json);
        	}
        });
        
        // second, deserialize all edges
        shapes.each(function(shape) {
        	if(shape.object instanceof ORYX.Core.Edge) {
        		shape.object.deserialize(shape.__properties, shape.json);
				shape.object._oldBounds = shape.object.bounds.clone();
				shape.object._update();
        	}
        });
       
		delete this.initializingShapes;
        return shapes.pluck("object");
    },
    
    /**
     * Updates the size of the canvas, regarding to the containg shapes.
     */
    updateSize: function(){
        // Check the size for the canvas
        var maxWidth    = 0;
        var maxHeight   = 0;
        var offset      = 100;
        this.getChildShapes(true, function(shape){
            var b = shape.bounds;
            maxWidth    = Math.max( maxWidth, b.lowerRight().x + offset)
            maxHeight   = Math.max( maxHeight, b.lowerRight().y + offset)
        }); 
        
        if( this.bounds.width() < maxWidth || this.bounds.height() < maxHeight ){
            this.setSize({width: Math.max(this.bounds.width(), maxWidth), height: Math.max(this.bounds.height(), maxHeight)})
        }
    },

	getRootNode: function() {
		return this.rootNode;
	},
	
	getSvgContainer: function() {
		return this.node.childNodes[1];
	},
	
	getHTMLContainer: function() {
		return this._htmlContainer;
	},	

	/**
	 * Return all elements of the same highest level
	 * @param {Object} elements
	 */
	getShapesWithSharedParent: function(elements) {

		// If there is no elements, return []
		if(!elements || elements.length < 1) { return [] }
		// If there is one element, return this element
		if(elements.length == 1) { return elements}

		return elements.findAll(function(value){
			var parentShape = value.parent;
			while(parentShape){
				if(elements.member(parentShape)) return false;
				parentShape = parentShape.parent
			}
			return true;
		});		

	},

	setSize: function(size, dontSetBounds) {
		if(!size || !size.width || !size.height){return}
		
		if(this.rootNode.parentNode){
			this.rootNode.parentNode.style.width = size.width + 'px';
			this.rootNode.parentNode.style.height = size.height + 'px';
		}
		
		this.rootNode.setAttributeNS(null, 'width', size.width);
		this.rootNode.setAttributeNS(null, 'height', size.height);

		//this._htmlContainer.style.top = "-" + (size.height + 4) + 'px';		
		if( !dontSetBounds ){
			this.bounds.set({a:{x:0,y:0},b:{x:size.width/this.zoomLevel,y:size.height/this.zoomLevel}})		
		}
	},
	
	/**
	 * Returns an SVG document of the current process.
	 * @param {Boolean} escapeText Use true, if you want to parse it with an XmlParser,
	 * 					false, if you want to use the SVG document in browser on client side.
	 */
	getSVGRepresentation: function(escapeText) {
		// Get the serialized svg image source
        var svgClone = this.getRootNode().cloneNode(true);
		
		this._removeInvisibleElements(svgClone);
		
		var x1, y1, x2, y2;
		try {
			var bb = this.getRootNode().childNodes[1].getBBox();
			x1 = bb.x;
			y1 = bb.y;
			x2 = bb.x + bb.width;
			y2 = bb.y + bb.height;
		} catch(e) {
			this.getChildShapes(true).each(function(shape) {
				var absBounds = shape.absoluteBounds();
				var ul = absBounds.upperLeft();
				var lr = absBounds.lowerRight();
				if(x1 == undefined) {
					x1 = ul.x;
					y1 = ul.y;
					x2 = lr.x;
					y2 = lr.y;
				} else {
					x1 = Math.min(x1, ul.x);
					y1 = Math.min(y1, ul.y);
					x2 = Math.max(x2, lr.x);
					y2 = Math.max(y2, lr.y);
				}
			});
		}
		
		var margin = 50;
		
		var width, height, tx, ty;
		if(x1 == undefined) {
			width = 0;
			height = 0;
			tx = 0;
			ty = 0;
		} else {
			width = x2 - x1;
			height = y2 - y1;
			tx = -x1+margin/2;
			ty = -y1+margin/2;
		}
		 
		
		
        // Set the width and height
        svgClone.setAttributeNS(null, 'width', width + margin);
        svgClone.setAttributeNS(null, 'height', height + margin);
		
		svgClone.childNodes[1].firstChild.setAttributeNS(null, 'transform', 'translate(' + tx + ", " + ty + ')');
		
		//remove scale factor
		svgClone.childNodes[1].removeAttributeNS(null, 'transform');
		
		try{
			var svgCont = svgClone.childNodes[1].childNodes[1];
			svgCont.parentNode.removeChild(svgCont);
		} catch(e) {}

		if(escapeText) {
			$A(svgClone.getElementsByTagNameNS(ORYX.CONFIG.NAMESPACE_SVG, 'tspan')).each(function(elem) {
				elem.textContent = elem.textContent.escapeHTML();
			});
			
			$A(svgClone.getElementsByTagNameNS(ORYX.CONFIG.NAMESPACE_SVG, 'text')).each(function(elem) {
				if(elem.childNodes.length == 0)
					elem.textContent = elem.textContent.escapeHTML();
			});
		}
		
		// generating absolute urls for the pdf-exporter
		$A(svgClone.getElementsByTagNameNS(ORYX.CONFIG.NAMESPACE_SVG, 'image')).each(function(elem) {
			var href = elem.getAttributeNS("http://www.w3.org/1999/xlink","href");
			
			if(!href.match("^(http|https)://")) {
				href = window.location.protocol + "//" + window.location.host + href;
				elem.setAttributeNS("http://www.w3.org/1999/xlink", "href", href);
			}
		});
		
		
		// escape all links
		$A(svgClone.getElementsByTagNameNS(ORYX.CONFIG.NAMESPACE_SVG, 'a')).each(function(elem) {
			elem.setAttributeNS("http://www.w3.org/1999/xlink", "xlink:href", (elem.getAttributeNS("http://www.w3.org/1999/xlink","href")||"").escapeHTML());
		});
		
        return svgClone;
	},
	
	/**   
	* Removes all nodes (and its children) that has the
	* attribute visibility set to "hidden"
	*/
	_removeInvisibleElements: function(element) {
		var index = 0;
		while(index < element.childNodes.length) {
			var child = element.childNodes[index];
			if(child.getAttributeNS &&
				child.getAttributeNS(null, "visibility") === "hidden") {
				element.removeChild(child);
			} else {
				this._removeInvisibleElements(child);
				index++; 
			}
		}
		
	},
	
	/**
	 * This method checks all shapes on the canvas and removes all shapes that
	 * contain invalid bounds values or dockers values(NaN)
	 */
	/*cleanUp: function(parent) {
		if (!parent) {
			parent = this;
		}
		parent.getChildShapes().each(function(shape){
			var a = shape.bounds.a;
			var b = shape.bounds.b;
			if (isNaN(a.x) || isNaN(a.y) || isNaN(b.x) || isNaN(b.y)) {
				parent.remove(shape);
			}
			else {
				shape.getDockers().any(function(docker) {
					a = docker.bounds.a;
					b = docker.bounds.b;
					if (isNaN(a.x) || isNaN(a.y) || isNaN(b.x) || isNaN(b.y)) {
						parent.remove(shape);
						return true;
					}
					return false;
				});
				shape.getMagnets().any(function(magnet) {
					a = magnet.bounds.a;
					b = magnet.bounds.b;
					if (isNaN(a.x) || isNaN(a.y) || isNaN(b.x) || isNaN(b.y)) {
						parent.remove(shape);
						return true;
					}
					return false;
				});
				this.cleanUp(shape);
			}
		}.bind(this));
	},*/

	_delegateEvent: function(event) {
		if(this.eventHandlerCallback && ( event.target == this.rootNode || event.target == this.rootNode.parentNode )) {
			this.eventHandlerCallback(event, this);
		}
	},
	
	toString: function() { return "Canvas " + this.id },
    
    /**
     * Calls {@link ORYX.Core.AbstractShape#toJSON} and adds some stencil set information.
     */
    toJSON: function() {
        var json = arguments.callee.$.toJSON.apply(this, arguments);
        
//		if(ORYX.CONFIG.STENCILSET_HANDLER.length > 0) {
//			json.stencilset = {
//				url: this.getStencil().stencilSet().namespace()
//	        };
//		} else {
			json.stencilset = {
				url: this.getStencil().stencilSet().source(),
				namespace: this.getStencil().stencilSet().namespace()
	        };	
//		}
        
        
        return json;
    }
 });/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

var idCounter = 0;
var ID_PREFIX = "resource";

/**
 * Main initialization method. To be called when loading
 * of the document, including all scripts, is completed.
 */
function init() {

	/* When the blank image url is not set programatically to a local
	 * representation, a spacer gif on the site of ext is loaded from the
	 * internet. This causes problems when internet or the ext site are not
	 * available. */
	Ext.BLANK_IMAGE_URL = (ORYX.CONFIG.BLANK_IMAGE) || (ORYX.PATH + 'libs/ext-2.0.2/resources/images/default/s.gif');	
	
	ORYX.Log.debug("Querying editor instances");

	// Hack for WebKit to set the SVGElement-Classes
	ORYX.Editor.setMissingClasses();
    
    // If someone wants to create the editor instance himself
    if (window.onOryxResourcesLoaded) {
        window.onOryxResourcesLoaded();
    } 
    // Else if this is a newly created model
    else if(window.location.pathname.include(ORYX.CONFIG.ORYX_NEW_URL)){
        new ORYX.Editor({
            id: 'oryx-canvas123',
            fullscreen: true,
            stencilset: {
                url: "/oryx" + ORYX.Utils.getParamFromUrl("stencilset")
            }
        });
    } 
    // Else fetch the model from server and display editor
    else {
        //HACK for distinguishing between different backends
		// Backend of 2008 uses /self URL ending
	    var modelUrl = window.location.href.replace(/#.*/g, "");
		if(modelUrl.endsWith("/self")) {
			modelUrl = modelUrl.replace("/self","/json");
		} else {
			var modelId = window.location.search.substring(4);
			modelUrl = "../service/model/" + modelId + "/json";
		}

        ORYX.Editor.createByUrl(modelUrl, {
            id: modelUrl
        });
    }
}

/**
   @namespace Global Oryx name space
   @name ORYX
*/
if(!ORYX) {var ORYX = {};}

/**
 * The Editor class.
 * @class ORYX.Editor
 * @extends Clazz
 * @param {Object} config An editor object, passed to {@link ORYX.Editor#loadSerialized}
 * @param {String} config.id Any ID that can be used inside the editor. If fullscreen=false, any HTML node with this id must be present to render the editor to this node.
 * @param {boolean} [config.fullscreen=true] Render editor in fullscreen mode or not.
 * @param {String} config.stencilset.url Stencil set URL.
 * @param {String} [config.stencil.id] Stencil type used for creating the canvas.  
 * @param {Object} config.properties Any properties applied to the canvas.
*/
ORYX.Editor = {
    /** @lends ORYX.Editor.prototype */
	// Defines the global dom event listener 
	DOMEventListeners: new Hash(),

	// Defines the selection
	selection: [],
	
	// Defines the current zoom level
	zoomLevel:1.0,

	construct: function(config) {
		
		// initialization.
		this._eventsQueue 	= [];
		this.loadedPlugins 	= [];
		this.pluginsData 	= [];
		
		
		//meta data about the model for the signavio warehouse
		//directory, new, name, description, revision, model (the model data)
		
		this.modelMetaData = config;
		
		var model = config;
		if(config.model) {
			model = config.model;
		}
		
		this.id = model.resourceId;
        if(!this.id) {
        	this.id = model.id;
        	if(!this.id) {
        		this.id = ORYX.Editor.provideId();
        	}
        }
		

        
        // Defines if the editor should be fullscreen or not
		this.fullscreen = config.fullscreen !== false;
		
		if (Signavio&&Signavio.Helper&&Signavio.Helper.ShowMask instanceof Function) {
			Signavio.Helper.ShowMask(true, !this.fullscreen ? this.id : Ext.getBody());
		}
		
		// Initialize the eventlistener
		this._initEventListener();

		// Load particular stencilset
		if(ORYX.CONFIG.BACKEND_SWITCH) {
			var ssUrl = (model.stencilset.namespace||model.stencilset.url).replace("#", "%23");
        	ORYX.Core.StencilSet.loadStencilSet(ORYX.CONFIG.STENCILSET_HANDLER + ssUrl, this.id);
		} else {
			var ssUrl = model.stencilset.url;
        	ORYX.Core.StencilSet.loadStencilSet(ssUrl, this.id);
		}

		// CREATES the canvas
		this._createCanvas(model.stencil ? model.stencil.id : null, model.properties);

		// GENERATES the whole EXT.VIEWPORT
		this._generateGUI();

		// Initializing of a callback to check loading ends
		var loadPluginFinished 	= false;
		var loadContentFinished = false;
		var initFinished = function(){	
			if( !loadPluginFinished || !loadContentFinished ){ return }
			this._finishedLoading();
		}.bind(this)
		
		// disable key events when Ext modal window is active
		ORYX.Editor.makeExtModalWindowKeysave(this._getPluginFacade());
		
		// LOAD the plugins
		window.setTimeout(function(){
			this.loadPlugins();
			loadPluginFinished = true;
			initFinished();
		}.bind(this), 100);

		// LOAD the content of the current editor instance
		window.setTimeout(function(){
            this.loadSerialized(model, true); // Request the meta data as well
            this.getCanvas().update();
			loadContentFinished = true;
			initFinished();
		}.bind(this), 200);
	},
	
	_finishedLoading: function() {
		if(Ext.getCmp('oryx-loading-panel')){
			Ext.getCmp('oryx-loading-panel').hide()
		}
		
		// Do Layout for viewport
		this.layout.doLayout();
		// Generate a drop target
		new Ext.dd.DropTarget(this.getCanvas().rootNode.parentNode);
		
		// Fixed the problem that the viewport can not 
		// start with collapsed panels correctly
		if (ORYX.CONFIG.PANEL_RIGHT_COLLAPSED === true){
			this.layout_regions.east.collapse();
		}
		if (ORYX.CONFIG.PANEL_LEFT_COLLAPSED === true){
			this.layout_regions.west.collapse();
		}
		
		// Raise Loaded Event
		this.handleEvents( {type:ORYX.CONFIG.EVENT_LOADED} )
		
	},
	
	_initEventListener: function(){

		// Register on Events
		
		document.documentElement.addEventListener(ORYX.CONFIG.EVENT_KEYDOWN, this.catchKeyDownEvents.bind(this), false);
		document.documentElement.addEventListener(ORYX.CONFIG.EVENT_KEYUP, this.catchKeyUpEvents.bind(this), false);

		// Enable Key up and down Event
		this._keydownEnabled = 	true;
		this._keyupEnabled =  	true;

		this.DOMEventListeners[ORYX.CONFIG.EVENT_MOUSEDOWN] = [];
		this.DOMEventListeners[ORYX.CONFIG.EVENT_MOUSEUP] 	= [];
		this.DOMEventListeners[ORYX.CONFIG.EVENT_MOUSEOVER] = [];
		this.DOMEventListeners[ORYX.CONFIG.EVENT_MOUSEOUT] 	= [];
		this.DOMEventListeners[ORYX.CONFIG.EVENT_SELECTION_CHANGED] = [];
		this.DOMEventListeners[ORYX.CONFIG.EVENT_MOUSEMOVE] = [];
				
	},
	
	/**
	 * Generate the whole viewport of the
	 * Editor and initialized the Ext-Framework
	 * 
	 */
	_generateGUI: function() {

		//TODO make the height be read from eRDF data from the canvas.
		// default, a non-fullscreen editor shall define its height by layout.setHeight(int) 
		
		// Defines the layout hight if it's NOT fullscreen
		var layoutHeight 	= ORYX.CONFIG.WINDOW_HEIGHT;
	
		var canvasParent	= this.getCanvas().rootNode.parentNode;

		/**
		 * Extend the Region implementation so that, 
		 * the clicking area can be extend to the whole collapse area and
		 * an title can now be shown.
		 *
		 */
		var oldGetCollapsedEl = Ext.layout.BorderLayout.Region.prototype.getCollapsedEl;
		Ext.layout.BorderLayout.Region.prototype.getCollapsedEl = function(){
			oldGetCollapsedEl.apply(this, arguments);
			
			if(this.collapseMode !== 'mini' && this.floatable === false && this.expandTriggerAll === true){
               this.collapsedEl.addClassOnOver("x-layout-collapsed-over");
			   this.collapsedEl.on("mouseover", this.collapsedEl.addClass.bind(this.collapsedEl, "x-layout-collapsed-over"));
               this.collapsedEl.on("click", this.onExpandClick, this);
            }
			
			
			if (this.collapseTitle){
				/* // Use CSS3 Attribute
				this.collapsedEl.createChild({
                    cls: "x-collapse-text", html: this.collapseTitle
                });*/
				
				// Use SVG to rotate text
				var svg = ORYX.Editor.graft("http://www.w3.org/2000/svg", this.collapsedEl.dom,
				['svg', {style:"position:relative;left:"+(this.position === "west" ? 4 : 6)+"px;top:"+(this.position === "west" ? 2 : 5)+"px;"},
					['text', {transform:"rotate(90)", x:0, y:0, "stroke-width":"0px", fill:"#EEEEEE", style:"font-weight:bold;", "font-size":"11"}, this.collapseTitle]
				]);
				var text = svg.childNodes[0];
				svg.setAttribute("xmlns:svg", "http://www.w3.org/2000/svg");
				
				// Rotate the west into the other side
				if (this.position === "west" && text.getComputedTextLength instanceof Function){
					// Wait till rendered
					window.setTimeout(function(){
						var length  = text.getComputedTextLength();
						text.setAttributeNS(null, "transform", "rotate(-90, " + ((length / 2) + 7) + ", " + ((length / 2) - 3) + ")");;
					}, 1)
				}
				delete this.collapseTitle;
			}
	        return this.collapsedEl;
		}

		// DEFINITION OF THE VIEWPORT AREAS
		this.layout_regions = {
				
				// DEFINES TOP-AREA
				north	: new Ext.Panel({ //TOOO make a composite of the oryx header and addable elements (for toolbar), second one should contain margins
					region	: 'north',
					cls		: 'x-panel-editor-north',
					autoEl	: 'div',
					border	: false
				}),	
				
				// DEFINES RIGHT-AREA
				east	: new Ext.Panel({
					region	: 'east',
					layout	: 'fit',
					cls		: 'x-panel-editor-east',
					/*layout: 'accordion',
					layoutConfig: {
		               // layout-specific configs go here
						titleCollapse: true,
						animate: true,
						activeOnTop: true
	                },*/
					autoEl	: 'div',
					collapseTitle : ORYX.I18N.View.East,
					border	:false,
					cmargins: {left:0, right:0},
					floatable: false,
					expandTriggerAll:true,
					collapsible	: true,
					width	: ORYX.CONFIG.PANEL_RIGHT_WIDTH || 200,
					split	: true,
					title	: "East"
				}),
				
				
				// DEFINES BOTTOM-AREA
				south	: new Ext.Panel({
					region	: 'south',
					cls		: 'x-panel-editor-south',
					autoEl	: 'div',
					border	: false
				}),
				
				
				// DEFINES LEFT-AREA
				west	: new Ext.Panel({
					region	: 'west',
					layout	: 'anchor',
					autoEl	: 'div',
					cls		: 'x-panel-editor-west',
					collapsible	: true,
					collapseTitle : ORYX.I18N.View.West,
					width	: ORYX.CONFIG.PANEL_LEFT_WIDTH || 200,
					autoScroll:true,
					cmargins: {left:0, right:0},
					floatable: false,
					expandTriggerAll:true,
					split	: true,
					title	: "West"
				}),
				
				
				// DEFINES CENTER-AREA (FOR THE EDITOR)
				center	: new Ext.Panel({
					region	: 'center',
					cls		: 'x-panel-editor-center',
					autoScroll: true,
					items	: {
						layout	: "fit",
						autoHeight: true,
						el		: canvasParent
					}
				})
		}
		
		// Hide every region except the center
		for (region in this.layout_regions) {
			if ( region != "center" ) {
				//this.layout_regions[ region ].hide();
			}
		}
		
		// Config for the Ext.Viewport 
		var layout_config = {
			layout: 'border',
			items: [
				this.layout_regions.north,
				this.layout_regions.east,
				this.layout_regions.south,
				this.layout_regions.west,
				this.layout_regions.center
			]
		}

		// IF Fullscreen, use a viewport
		if (this.fullscreen) {
			this.layout = new Ext.Viewport( layout_config )
		
		// IF NOT, use a panel and render it to the given id
		} else {
			layout_config.renderTo 	= this.id;
			layout_config.height 	= layoutHeight;
			this.layout = new Ext.Panel( layout_config )
		}
		
		//Generates the ORYX-Header
		//this._generateHeader();
		
		
		// Set the editor to the center, and refresh the size
	 	canvasParent.parentNode.setAttributeNS(null, 'align', 'center');
	 	canvasParent.setAttributeNS(null, 'align', 'left');
		this.getCanvas().setSize({
			width	: ORYX.CONFIG.CANVAS_WIDTH,
			height	: ORYX.CONFIG.CANVAS_HEIGHT
		});		
						
	},
	
	_generateHeader: function(){
		
		var headerPanel = new Ext.Panel({
			height		: 30,
			autoHeight	: false,
			border		: false,
			html : "<div id='oryx_editor_header'><a href=\""+ORYX.CONFIG.WEB_URL+"\" target=\"_self\"><img src='"+ORYX.PATH+"images/oryx.small.gif' border=\"0\" /></a><div style='clear: both;'></div><div id='close_editor'></div></div>" 
		});

		var maActive 	= ORYX.MashupAPI && ORYX.MashupAPI.isUsed;
		var maKey		= maActive ? ORYX.MashupAPI.key : "";
		var maCanRun	= maActive ? ORYX.MashupAPI.canRun : false;	
		var maIsRemoteM	= maActive ? ORYX.MashupAPI.isModelRemote : true;	
		
		var maModelImage= maIsRemoteM ? "<img src='"+ORYX.PATH+"images/page_white_put.png'/>" : "";
		var maModelAuthI= maActive ? "<span class='mashupinfo'><img src='"+ORYX.PATH+"images/" +( maCanRun ? "plugin_error" : "plugin") +".png'/>" + maModelImage + "</span>" : "";
		
		
		// Callback if the user changes
		var fn = function(val){
			
			var publicText = ORYX.I18N.Oryx.notLoggedOn;
			var user = val && val.identifier && val.identifier != "public" ? decodeURI(val.identifier.gsub('"', "")).replace(/\+/g," ") : "";
			
			if( user.length <= 0 ){
				user 	= 	publicText;
			}
			
			var content =  "<div id='editor_header'>" +
                "<div id='header_logo_image'>" +                
                    "<img src='../explorer/src/img/signavio/smoky/logo2.png' border=\"0\" usemap=\"#kisbpmmap\"/>" + 
                    "<map id=\"kisbpmmap\" name=\"kisbpmmap\"><area shape=\"rect\" alt=\"kisbpm.com\" title=\"kisbpm.com\" coords=\"15,2,322,44\" href=\"http://kisbpm.com\" target=\"_blank\" /></map>" +
                "</div>" +
                "<span class='openid " + (publicText == user ? "not" : "") + "'>" + 
                  (unescape(user)) + 
                  maModelAuthI + 
                "</span>" + 
//                "<div id='header_close_image'>" +
//                  "<a href=\""+ORYX.CONFIG.WEB_URL+"\" target=\"_self\" title=\"close modeler\">" +
//                    "<img src='../editor/images/close_button.png' border=\"0\" />" + 
//                  "</a>" +
//                "</div>" + 
              "</div>";
			
			if( headerPanel.body ){
				headerPanel.body.dom.innerHTML = content;
			} else {
				headerPanel.html = content
			}
		};	
		
		ORYX.Editor.Cookie.onChange(fn);
		fn(ORYX.Editor.Cookie.getParams());
		
		// The oryx header
		this.addToRegion("north", headerPanel );
	},
	
	/**
	 * adds a component to the specified region
	 * 
	 * @param {String} region
	 * @param {Ext.Component} component
	 * @param {String} title, optional
	 * @return {Ext.Component} dom reference to the current region or null if specified region is unknown
	 */
	addToRegion: function(region, component, title) {
		
		if (region.toLowerCase && this.layout_regions[region.toLowerCase()]) {
			var current_region = this.layout_regions[region.toLowerCase()];

			current_region.add(component);

			/*if( (region.toLowerCase() == 'east' || region.toLowerCase() == 'west') && current_region.items.length == 2){ //!current_region.getLayout() instanceof Ext.layout.Accordion ){
				var layout = new Ext.layout.Accordion( current_region.layoutConfig );
            	current_region.setLayout( layout );
				
				var items = current_region.items.clone();
				
				current_region.items.each(function(item){ current_region.remove( item )})
				items.each(function(item){ current_region.add( item )})
				
			}	*/		

			ORYX.Log.debug("original dimensions of region %0: %1 x %2", current_region.region, current_region.width, current_region.height)

			// update dimensions of region if required.
			if  (!current_region.width && component.initialConfig && component.initialConfig.width) {
				ORYX.Log.debug("resizing width of region %0: %1", current_region.region, component.initialConfig.width)	
				current_region.setWidth(component.initialConfig.width)
			}
			if  (component.initialConfig && component.initialConfig.height) {
				ORYX.Log.debug("resizing height of region %0: %1", current_region.region, component.initialConfig.height)
				var current_height = current_region.height || 0;
				current_region.height = component.initialConfig.height + current_height;
				current_region.setHeight(component.initialConfig.height + current_height)
			}
			
			// set title if provided as parameter.
			if (typeof title == "string") {
				current_region.setTitle(title);	
			}
						
			// trigger doLayout() and show the pane
			current_region.ownerCt.doLayout();
			current_region.show();

			if(Ext.isMac)
				ORYX.Editor.resizeFix();
			
			return current_region;
		}
		
		return null;
	},
	getAvailablePlugins: function(){
		var curAvailablePlugins=ORYX.availablePlugins.clone();
		curAvailablePlugins.each(function(plugin){
			if(this.loadedPlugins.find(function(loadedPlugin){
				return loadedPlugin.type==this.name;
			}.bind(plugin))){
				plugin.engaged=true;
			}else{
				plugin.engaged=false;
			}
			}.bind(this));
		return curAvailablePlugins;
	},

	loadScript: function (url, callback){
	    var script = document.createElement("script")
	    script.type = "text/javascript";
	    if (script.readyState){  //IE
	        script.onreadystatechange = function(){
	            if (script.readyState == "loaded" || script.readyState == "complete"){
	                script.onreadystatechange = null;
	                callback();
	            }
        	};
    	} else {  //Others
	        script.onload = function(){
	            callback();
	        };
		}
	    script.src = url;
		document.getElementsByTagName("head")[0].appendChild(script);
	},
	/**
	 * activate Plugin
	 * 
	 * @param {String} name
	 * @param {Function} callback
	 * 		callback(sucess, [errorCode])
	 * 			errorCodes: NOTUSEINSTENCILSET, REQUIRESTENCILSET, NOTFOUND, YETACTIVATED
	 */
	activatePluginByName: function(name, callback, loadTry){

		var match=this.getAvailablePlugins().find(function(value){return value.name==name});
		if(match && (!match.engaged || (match.engaged==='false'))){		
				var loadedStencilSetsNamespaces = this.getStencilSets().keys();
				var facade = this._getPluginFacade();
				var newPlugin;
				var me=this;
				ORYX.Log.debug("Initializing plugin '%0'", match.name);
				
					if (!match.requires 	|| !match.requires.namespaces 	|| match.requires.namespaces.any(function(req){ return loadedStencilSetsNamespaces.indexOf(req) >= 0 }) ){
						if(!match.notUsesIn 	|| !match.notUsesIn.namespaces 	|| !match.notUsesIn.namespaces.any(function(req){ return loadedStencilSetsNamespaces.indexOf(req) >= 0 })){
	
					try {
						
						var className 	= eval(match.name);
							var newPlugin = new className(facade, match);
							newPlugin.type = match.name;
							
							// If there is an GUI-Plugin, they get all Plugins-Offer-Meta-Data
							if (newPlugin.registryChanged) 
								newPlugin.registryChanged(me.pluginsData);
							
							// If there have an onSelection-Method it will pushed to the Editor Event-Handler
							if (newPlugin.onSelectionChanged) 
								me.registerOnEvent(ORYX.CONFIG.EVENT_SELECTION_CHANGED, newPlugin.onSelectionChanged.bind(newPlugin));
							this.loadedPlugins.push(newPlugin);
							this.loadedPlugins.each(function(loaded){
								if(loaded.registryChanged)
									loaded.registryChanged(this.pluginsData);
							}.bind(me));
							callback(true);
						
					} catch(e) {
						ORYX.Log.warn("Plugin %0 is not available", match.name);
						if(!!loadTry){
							callback(false,"INITFAILED");
							return;
						}
						this.loadScript("plugins/scripts/"+match.source, this.activatePluginByName.bind(this,match.name,callback,true));
					}
					}else{
						callback(false,"NOTUSEINSTENCILSET");
						ORYX.Log.info("Plugin need a stencilset which is not loaded'", match.name);
					}
								
				} else {
					callback(false,"REQUIRESTENCILSET");
					ORYX.Log.info("Plugin need a stencilset which is not loaded'", match.name);
				}

			
			}else{
				callback(false, match?"NOTFOUND":"YETACTIVATED");
				//TODO error handling
			}
	},

	/**
	 *  Laden der Plugins
	 */
	loadPlugins: function() {
		
		// if there should be plugins but still are none, try again.
		// TODO this should wait for every plugin respectively.
		/*if (!ORYX.Plugins && ORYX.availablePlugins.length > 0) {
			window.setTimeout(this.loadPlugins.bind(this), 100);
			return;
		}*/
		
		var me = this;
		var newPlugins = [];


		var loadedStencilSetsNamespaces = this.getStencilSets().keys();

		// Available Plugins will be initalize
		var facade = this._getPluginFacade();
		
		// If there is an Array where all plugins are described, than only take those
		// (that comes from the usage of oryx with a mashup api)
		if( ORYX.MashupAPI && ORYX.MashupAPI.loadablePlugins && ORYX.MashupAPI.loadablePlugins instanceof Array ){
		
			// Get the plugins from the available plugins (those who are in the plugins.xml)
			ORYX.availablePlugins = $A(ORYX.availablePlugins).findAll(function(value){
										return ORYX.MashupAPI.loadablePlugins.include( value.name )
									})
			
			// Add those plugins to the list, which are only in the loadablePlugins list
			ORYX.MashupAPI.loadablePlugins.each(function( className ){
				if( !(ORYX.availablePlugins.find(function(val){ return val.name == className }))){
					ORYX.availablePlugins.push( {name: className } );
				}
			})
		}
		
		
		ORYX.availablePlugins.each(function(value) {
			ORYX.Log.debug("Initializing plugin '%0'", value.name);
				if( (!value.requires 	|| !value.requires.namespaces 	|| value.requires.namespaces.any(function(req){ return loadedStencilSetsNamespaces.indexOf(req) >= 0 }) ) &&
					(!value.notUsesIn 	|| !value.notUsesIn.namespaces 	|| !value.notUsesIn.namespaces.any(function(req){ return loadedStencilSetsNamespaces.indexOf(req) >= 0 }) )&&
					/*only load activated plugins or undefined */
					(value.engaged || (value.engaged===undefined)) ){

				try {
					var className 	= eval(value.name);
					if( className ){
						var plugin		= new className(facade, value);
						plugin.type		= value.name;
						newPlugins.push( plugin );
						plugin.engaged=true;
					}
				} catch(e) {
					ORYX.Log.warn("Plugin %0 is not available %1", value.name, e);
				}
							
			} else {
				ORYX.Log.info("Plugin need a stencilset which is not loaded'", value.name);
			}
			
		});

		newPlugins.each(function(value) {
			// If there is an GUI-Plugin, they get all Plugins-Offer-Meta-Data
			if(value.registryChanged)
				value.registryChanged(me.pluginsData);

			// If there have an onSelection-Method it will pushed to the Editor Event-Handler
			if(value.onSelectionChanged)
				me.registerOnEvent(ORYX.CONFIG.EVENT_SELECTION_CHANGED, value.onSelectionChanged.bind(value));
		});

		this.loadedPlugins = newPlugins;
		
		// Hack for the Scrollbars
		if(Ext.isMac) {
			ORYX.Editor.resizeFix();
		}
		
		this.registerPluginsOnKeyEvents();
		
		this.setSelection();
		
	},

	/**
	 * Creates the Canvas
	 * @param {String} [stencilType] The stencil type used for creating the canvas. If not given, a stencil with myBeRoot = true from current stencil set is taken.
	 * @param {Object} [canvasConfig] Any canvas properties (like language).
	 */
	_createCanvas: function(stencilType, canvasConfig) {
        if (stencilType) {
            // Add namespace to stencilType
            if (stencilType.search(/^http/) === -1) {
                stencilType = this.getStencilSets().values()[0].namespace() + stencilType;
            }
        }
        else {
            // Get any root stencil type
            stencilType = this.getStencilSets().values()[0].findRootStencilName();
        }
        
		// get the stencil associated with the type
		var canvasStencil = ORYX.Core.StencilSet.stencil(stencilType);
			
		if (!canvasStencil) 
			ORYX.Log.fatal("Initialisation failed, because the stencil with the type %0 is not part of one of the loaded stencil sets.", stencilType);
		
		// create all dom
		// TODO fix border, so the visible canvas has a double border and some spacing to the scrollbars
		var div = ORYX.Editor.graft("http://www.w3.org/1999/xhtml", null, ['div']);
		// set class for custom styling
		div.addClassName("ORYX_Editor");
						
		// create the canvas
		this._canvas = new ORYX.Core.Canvas({
			width					: ORYX.CONFIG.CANVAS_WIDTH,
			height					: ORYX.CONFIG.CANVAS_HEIGHT,
			'eventHandlerCallback'	: this.handleEvents.bind(this),
			id						: this.id,
			parentNode				: div
		}, canvasStencil);
        
        if (canvasConfig) {
          // Migrate canvasConfig to an RDF-like structure
          //FIXME this isn't nice at all because we don't want rdf any longer
          var properties = [];
          for(field in canvasConfig){
            properties.push({
              prefix: 'oryx',
              name: field,
              value: canvasConfig[field]
            });
          }
            
          this._canvas.deserialize(properties);
        }
				
	},

	/**
	 * Returns a per-editor singleton plugin facade.
	 * To be used in plugin initialization.
	 */
	_getPluginFacade: function() {

		// if there is no pluginfacade already created:
		if(!(this._pluginFacade))

			// create it.
			this._pluginFacade = {

				activatePluginByName:		this.activatePluginByName.bind(this),
				//deactivatePluginByName:		this.deactivatePluginByName.bind(this),
				getAvailablePlugins:	this.getAvailablePlugins.bind(this),
				offer:					this.offer.bind(this),
				getStencilSets:			this.getStencilSets.bind(this),
				getStencilSetExtensionDefinition:function(){ return Object.clone(this.ss_extensions_def||{})}.bind(this),
				getRules:				this.getRules.bind(this),
				loadStencilSet:			this.loadStencilSet.bind(this),
				createShape:			this.createShape.bind(this),
				deleteShape:			this.deleteShape.bind(this),
				getSelection:			this.getSelection.bind(this),
				setSelection:			this.setSelection.bind(this),
				updateSelection:		this.updateSelection.bind(this),
				getCanvas:				this.getCanvas.bind(this),
				
				importJSON:				this.importJSON.bind(this),
				importERDF:				this.importERDF.bind(this),
				getERDF:				this.getERDF.bind(this),
                getJSON:                this.getJSON.bind(this),
                getSerializedJSON:      this.getSerializedJSON.bind(this),
				
				executeCommands:		this.executeCommands.bind(this),
				isExecutingCommands:	this.isExecutingCommands.bind(this),
				
				registerOnEvent:		this.registerOnEvent.bind(this),
				unregisterOnEvent:		this.unregisterOnEvent.bind(this),
				raiseEvent:				this.handleEvents.bind(this),
				enableEvent:			this.enableEvent.bind(this),
				disableEvent:			this.disableEvent.bind(this),
				
				eventCoordinates:		this.eventCoordinates.bind(this),
				addToRegion:			this.addToRegion.bind(this),
				
				getModelMetaData:		this.getModelMetaData.bind(this)
			};

		// return it.
		return this._pluginFacade;
	},

	isExecutingCommands: function(){
		return !!this.commandExecuting;
	},

	/**
	 * Implementes the command pattern
	 * (The real usage of the command pattern
	 * is implemented and shown in the Plugins/undo.js)
	 *
	 * @param <Oryx.Core.Command>[] Array of commands
	 */
	executeCommands: function(commands){
		
		if (!this.commandStack){
			this.commandStack = [];
		}
		if (!this.commandStackExecuted){
			this.commandStackExecuted = [];
		}
		
		
		this.commandStack = [].concat(this.commandStack)
							  .concat(commands);
		
		// Check if already executes
		if (this.commandExecuting){ return; }
		
		// Start execution
		this.commandExecuting = true;
		
		// Iterate over all commands
		while(this.commandStack.length > 0){
			var command = this.commandStack.shift();
			// and execute it
			command.execute();
			this.commandStackExecuted.push(command);
		}
		
		// Raise event for executing commands
		this.handleEvents({
			type		: ORYX.CONFIG.EVENT_EXECUTE_COMMANDS,
			commands	: this.commandStackExecuted
		});
		
		// Remove temporary vars
		delete this.commandStack;
		delete this.commandStackExecuted;
		delete this.commandExecuting;
		
		
		this.updateSelection();

	},
	
    /**
     * Returns JSON of underlying canvas (calls ORYX.Canvas#toJSON()).
     * @return {Object} Returns JSON representation as JSON object.
     */
    getJSON: function(){
        var canvas = this.getCanvas().toJSON();
        canvas.ssextensions = this.getStencilSets().values()[0].extensions().keys().findAll(function(sse){ return !sse.endsWith('/meta#') });
        return canvas;
    },
    
    /**
     * Serializes a call to toJSON().
     * @return {String} Returns JSON representation as string.
     */
    getSerializedJSON: function(){
        return Ext.encode(this.getJSON());
    },
	
    /**
	 * @return {String} Returns eRDF representation.
	 * @deprecated Use ORYX.Editor#getJSON instead, if possible.
	 */
	getERDF:function(){

		// Get the serialized dom
        var serializedDOM = DataManager.serializeDOM( this._getPluginFacade() );
		
		// Add xml definition if there is no
		serializedDOM = '<?xml version="1.0" encoding="utf-8"?>' +
						'<html xmlns="http://www.w3.org/1999/xhtml" ' +
						'xmlns:b3mn="http://b3mn.org/2007/b3mn" ' +
						'xmlns:ext="http://b3mn.org/2007/ext" ' +
						'xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" ' +
						'xmlns:atom="http://b3mn.org/2007/atom+xhtml">' +
						'<head profile="http://purl.org/NET/erdf/profile">' +
						'<link rel="schema.dc" href="http://purl.org/dc/elements/1.1/" />' +
						'<link rel="schema.dcTerms" href="http://purl.org/dc/terms/ " />' +
						'<link rel="schema.b3mn" href="http://b3mn.org" />' +
						'<link rel="schema.oryx" href="http://oryx-editor.org/" />' +
						'<link rel="schema.raziel" href="http://raziel.org/" />' +
						'<base href="' +
						location.href.split("?")[0] +
						'" />' +
						'</head><body>' +
						serializedDOM +
						'</body></html>';
		
		return serializedDOM;				
	},
    
	/**
	* Imports shapes in JSON as expected by {@link ORYX.Editor#loadSerialized}
	* @param {Object|String} jsonObject The (serialized) json object to be imported
	* @param {boolean } [noSelectionAfterImport=false] Set to true if no shapes should be selected after import
	* @throws {SyntaxError} If the serialized json object contains syntax errors
	*/
	importJSON: function(jsonObject, noSelectionAfterImport) {
		
        try {
            jsonObject = this.renewResourceIds(jsonObject);
        } catch(error){
            throw error;
        }     
		//check, if the imported json model can be loaded in this editor
		// (stencil set has to fit)
		if(jsonObject.stencilset.namespace && jsonObject.stencilset.namespace !== this.getCanvas().getStencil().stencilSet().namespace()) {
			Ext.Msg.alert(ORYX.I18N.JSONImport.title, String.format(ORYX.I18N.JSONImport.wrongSS, jsonObject.stencilset.namespace, this.getCanvas().getStencil().stencilSet().namespace()));
			return null;
		} else {
			var commandClass = ORYX.Core.Command.extend({
			construct: function(jsonObject, loadSerializedCB, noSelectionAfterImport, facade){
				this.jsonObject = jsonObject;
				this.noSelection = noSelectionAfterImport;
				this.facade = facade;
				this.shapes;
				this.connections = [];
				this.parents = new Hash();
				this.selection = this.facade.getSelection();
				this.loadSerialized = loadSerializedCB;
			},			
			execute: function(){
				
				if (!this.shapes) {
					// Import the shapes out of the serialization		
					this.shapes	= this.loadSerialized( this.jsonObject );		
					
					//store all connections
					this.shapes.each(function(shape) {
						
						if (shape.getDockers) {
							var dockers = shape.getDockers();
							if (dockers) {
								if (dockers.length > 0) {
									this.connections.push([dockers.first(), dockers.first().getDockedShape(), dockers.first().referencePoint]);
								}
								if (dockers.length > 1) {
									this.connections.push([dockers.last(), dockers.last().getDockedShape(), dockers.last().referencePoint]);
								}
							}
						}
						
						//store parents
						this.parents[shape.id] = shape.parent;
					}.bind(this));
				} else {
					this.shapes.each(function(shape) {
						this.parents[shape.id].add(shape);
					}.bind(this));
					
					this.connections.each(function(con) {
						con[0].setDockedShape(con[1]);
						con[0].setReferencePoint(con[2]);
						con[0].update();
					});
				}
				
				//this.parents.values().uniq().invoke("update");
				this.facade.getCanvas().update();			
					
				if(!this.noSelection)
					this.facade.setSelection(this.shapes);
				else
					this.facade.updateSelection();
					
				// call updateSize again, because during loadSerialized the edges' bounds  
				// are not yet initialized properly
				this.facade.getCanvas().updateSize();	
					
				},
				rollback: function(){
					var selection = this.facade.getSelection();
					
					this.shapes.each(function(shape) {
						selection = selection.without(shape);
						this.facade.deleteShape(shape);
					}.bind(this));
					
					/*this.parents.values().uniq().each(function(parent) {
						if(!this.shapes.member(parent))
							parent.update();
					}.bind(this));*/
					
					this.facade.getCanvas().update();
					
					this.facade.setSelection(selection);
				}
			})
			
			var command = new commandClass(jsonObject, 
											this.loadSerialized.bind(this),
											noSelectionAfterImport,
											this._getPluginFacade());
			
			this.executeCommands([command]);	
			
			return command.shapes.clone();
		}
	},
    
    /**
     * This method renew all resource Ids and according references.
     * Warning: The implementation performs a substitution on the serialized object for
     * easier implementation. This results in a low performance which is acceptable if this
     * is only used when importing models.
     * @param {Object|String} jsonObject
     * @throws {SyntaxError} If the serialized json object contains syntax errors.
     * @return {Object} The jsonObject with renewed ids.
     * @private
     */
    renewResourceIds: function(jsonObject){
        // For renewing resource ids, a serialized and object version is needed
        if(Ext.type(jsonObject) === "string"){
            try {
                var serJsonObject = jsonObject;
                jsonObject = Ext.decode(jsonObject);
            } catch(error){
                throw new SyntaxError(error.message);
            }
        } else {
            var serJsonObject = Ext.encode(jsonObject);
        }        
        
        // collect all resourceIds recursively
        var collectResourceIds = function(shapes){
            if(!shapes) return [];
            
            return shapes.map(function(shape){
                return collectResourceIds(shape.childShapes).concat(shape.resourceId);
            }).flatten();
        }
        var resourceIds = collectResourceIds(jsonObject.childShapes);
        
        // Replace each resource id by a new one
        resourceIds.each(function(oldResourceId){
            var newResourceId = ORYX.Editor.provideId();
            serJsonObject = serJsonObject.gsub('"'+oldResourceId+'"', '"'+newResourceId+'"')
        });
        
        return Ext.decode(serJsonObject);
    },
	
	/**
	 * Import erdf structure to the editor
	 *
	 */
	importERDF: function( erdfDOM ){

		var serialized = this.parseToSerializeObjects( erdfDOM );	
		
		if(serialized)
			return this.importJSON(serialized, true);
	},

	/**
	 * Parses one model (eRDF) to the serialized form (JSON)
	 * 
	 * @param {Object} oneProcessData
	 * @return {Object} The JSON form of given eRDF model, or null if it couldn't be extracted 
	 */
	parseToSerializeObjects: function( oneProcessData ){
		
		// Firefox splits a long text node into chunks of 4096 characters.
		// To prevent truncation of long property values the normalize method must be called
		if(oneProcessData.normalize) oneProcessData.normalize();
		try {
			var xsl = "";
			var source=ORYX.PATH + "lib/extract-rdf.xsl";
			new Ajax.Request(source, {
				asynchronous: false,
				method: 'get',
				onSuccess: function(transport){
					xsl = transport.responseText
				}.bind(this),
				onFailure: (function(transport){
					ORYX.Log.error("XSL load failed" + transport);
				}).bind(this)
			});
			var domParser = new DOMParser();
			var xmlObject = oneProcessData;
			var xslObject = domParser.parseFromString(xsl, "text/xml");
        	var xsltProcessor = new XSLTProcessor();
        	var xslRef = document.implementation.createDocument("", "", null);
        	xsltProcessor.importStylesheet(xslObject);
        
            var new_rdf = xsltProcessor.transformToFragment(xmlObject, document);
            var serialized_rdf = (new XMLSerializer()).serializeToString(new_rdf);
			}catch(e){
			Ext.Msg.alert("Oryx", error);
			var serialized_rdf = "";
		}
            
            // Firefox 2 to 3 problem?!
            serialized_rdf = !serialized_rdf.startsWith("<?xml") ? "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" + serialized_rdf : serialized_rdf;

        var req = new Ajax.Request(ORYX.CONFIG.ROOT_PATH+"rdf2json", {
          method: 'POST',
          asynchronous: false,
          onSuccess: function(transport) {
              Ext.decode(transport.responseText);
          },
          parameters: {
              rdf: serialized_rdf
          }
        });
        
        return Ext.decode(req.transport.responseText);
	},

    /**
     * Loads serialized model to the oryx.
     * @example
     * editor.loadSerialized({
     *    resourceId: "mymodel1",
     *    childShapes: [
     *       {
     *          stencil:{ id:"Subprocess" },
     *          outgoing:[{resourceId: 'aShape'}],
     *          target: {resourceId: 'aShape'},
     *          bounds:{ lowerRight:{ y:510, x:633 }, upperLeft:{ y:146, x:210 } },
     *          resourceId: "myshape1",
     *          childShapes:[],
     *          properties:{},
     *       }
     *    ],
     *    properties:{
     *       language: "English"
     *    },
     *    stencilset:{
     *       url:"http://localhost:8080/oryx/stencilsets/bpmn1.1/bpmn1.1.json"
     *    },
     *    stencil:{
     *       id:"BPMNDiagram"
     *    }
     * });
     * @param {Object} model Description of the model to load.
     * @param {Array} [model.ssextensions] List of stenctil set extensions.
     * @param {String} model.stencilset.url
     * @param {String} model.stencil.id 
     * @param {Array} model.childShapes
     * @param {Array} [model.properties]
     * @param {String} model.resourceId
     * @return {ORYX.Core.Shape[]} List of created shapes
     * @methodOf ORYX.Editor.prototype
     */
    loadSerialized: function(model, requestMeta){
        var canvas  = this.getCanvas();
      
        // Bugfix (cf. http://code.google.com/p/oryx-editor/issues/detail?id=240)
        // Deserialize the canvas' stencil set extensions properties first!
        this.loadSSExtensions(model.ssextensions);
		
		// Load Meta Data Extension if available
		// #Signavio
		if (requestMeta === true) {
			var metaDataExtension = this.getExtensionForMetaData();
			if (metaDataExtension) {
				this.loadSSExtension(metaDataExtension);
			}
		}
		
        var shapes = this.getCanvas().addShapeObjects(model.childShapes, this.handleEvents.bind(this));
        
        if(model.properties) {
        	for(key in model.properties) {
        		var value = model.properties[key];
				var prop = this.getCanvas().getStencil().property("oryx-"+key);
        		if (!(typeof value === "string") && (!prop || !prop.isList())) {
        			value = Ext.encode(value);
        		}
            	this.getCanvas().setProperty("oryx-" + key, value);
            }
        }
        
        
        this.getCanvas().updateSize();
		
		// Force to update the selection
		this.selection = [null];
		this.setSelection([]);
		
        return shapes;
    },
	
	/**
	 * Return the namespace of the extension which
	 * provided all the self defined meta data
	 * @return {String} Returns null if no extension is defined, otherwise the namespace
	 *
	 */
	getExtensionForMetaData: function(){
		if (!this.ss_extensions_def||!(this.ss_extensions_def.extensions instanceof Array)){
			return null;
		}
		
		var stencilsets = this.getStencilSets();
		var extension = this.ss_extensions_def.extensions.find(function(ex){
				return !!stencilsets[ex["extends"]] && ex.namespace.endsWith("/meta#");
			});
			
		return extension ? extension.namespace || null : null;		
	},
    
    /**
     * Calls ORYX.Editor.prototype.ss_extension_namespace for each element
     * @param {Array} ss_extension_namespaces An array of stencil set extension namespaces.
     */
    loadSSExtensions: function(ss_extension_namespaces){
        if(!ss_extension_namespaces) return;

        ss_extension_namespaces.each(function(ss_extension_namespace){
            this.loadSSExtension(ss_extension_namespace);
        }.bind(this));
    },
	
	/**
	* Loads a stencil set extension.
	* The stencil set extensions definiton file must already
	* be loaded when the editor is initialized.
	*/
	loadSSExtension: function(ss_extension_namespace) {				
		
		if (this.ss_extensions_def) {
			var extension = this.ss_extensions_def.extensions.find(function(ex){
				return (ex.namespace == ss_extension_namespace);
			});
			
			if (!extension) {
				return;
			}
			
			var stencilset = this.getStencilSets()[extension["extends"]];
			
			if (!stencilset) {
				return;
			}
			
			// Check if absolute or relative url
			if ((extension["definition"]||"").startsWith("/")){
				stencilset.addExtension(extension["definition"])
			} else {
				stencilset.addExtension(ORYX.CONFIG.SS_EXTENSIONS_FOLDER + extension["definition"])
			}
			
			//stencilset.addExtension("/oryx/build/stencilsets/extensions/" + extension["definition"])
			this.getRules().initializeRules(stencilset);
			
			this._getPluginFacade().raiseEvent({
				type: ORYX.CONFIG.EVENT_STENCIL_SET_LOADED
			});
		}
		
	},

	disableEvent: function(eventType){
		if(eventType == ORYX.CONFIG.EVENT_KEYDOWN) {
			this._keydownEnabled = false;
		}
		if(eventType == ORYX.CONFIG.EVENT_KEYUP) {
			this._keyupEnabled = false;
		}
		if(this.DOMEventListeners.keys().member(eventType)) {
			var value = this.DOMEventListeners.remove(eventType);
			this.DOMEventListeners['disable_' + eventType] = value;
		}
	},

	enableEvent: function(eventType){
		if(eventType == ORYX.CONFIG.EVENT_KEYDOWN) {
			this._keydownEnabled = true;
		}
		
		if(eventType == ORYX.CONFIG.EVENT_KEYUP) {
			this._keyupEnabled = true;
		}
		
		if(this.DOMEventListeners.keys().member("disable_" + eventType)) {
			var value = this.DOMEventListeners.remove("disable_" + eventType);
			this.DOMEventListeners[eventType] = value;
		}
	},

	/**
	 *  Methods for the PluginFacade
	 */
	registerOnEvent: function(eventType, callback) {
		if(!(this.DOMEventListeners.keys().member(eventType))) {
			this.DOMEventListeners[eventType] = [];
		}

		this.DOMEventListeners[eventType].push(callback);
	},

	unregisterOnEvent: function(eventType, callback) {
		if(this.DOMEventListeners.keys().member(eventType)) {
			this.DOMEventListeners[eventType] = this.DOMEventListeners[eventType].without(callback);
		} else {
			// Event is not supported
			// TODO: Error Handling
		}
	},

	getSelection: function() {
		return this.selection || [];
	},

	getStencilSets: function() { 
		return ORYX.Core.StencilSet.stencilSets(this.id); 
	},
	
	getRules: function() {
		return ORYX.Core.StencilSet.rules(this.id);
	},
	
	loadStencilSet: function(source) {
		try {
			ORYX.Core.StencilSet.loadStencilSet(source, this.id);
			this.handleEvents({type:ORYX.CONFIG.EVENT_STENCIL_SET_LOADED});
		} catch (e) {
			ORYX.Log.warn("Requesting stencil set file failed. (" + e + ")");
		}
	},

	offer: function(pluginData) {
		if(!this.pluginsData.member(pluginData)){
			this.pluginsData.push(pluginData);
		}
	},
	
	/**
	 * It creates an new event or adds the callback, if already existing,
	 * for the key combination that the plugin passes in keyCodes attribute
	 * of the offer method.
	 * 
	 * The new key down event fits the schema:
	 * 		key.event[.metactrl][.alt][.shift].'thekeyCode'
	 */
	registerPluginsOnKeyEvents: function() {
		this.pluginsData.each(function(pluginData) {
			
			if(pluginData.keyCodes) {
				
				pluginData.keyCodes.each(function(keyComb) {
					var eventName = "key.event";
					
					/* Include key action */
					eventName += '.' + keyComb.keyAction;
					
					if(keyComb.metaKeys) {
						/* Register on ctrl or apple meta key as meta key */
						if(keyComb.metaKeys.
							indexOf(ORYX.CONFIG.META_KEY_META_CTRL) > -1) {
								eventName += "." + ORYX.CONFIG.META_KEY_META_CTRL;
						}
							
						/* Register on alt key as meta key */
						if(keyComb.metaKeys.
							indexOf(ORYX.CONFIG.META_KEY_ALT) > -1) {
								eventName += '.' + ORYX.CONFIG.META_KEY_ALT;
						}
						
						/* Register on shift key as meta key */
						if(keyComb.metaKeys.
							indexOf(ORYX.CONFIG.META_KEY_SHIFT) > -1) {
								eventName += '.' + ORYX.CONFIG.META_KEY_SHIFT;
						}		
					}
					
					/* Register on the actual key */
					if(keyComb.keyCode)	{
						eventName += '.' + keyComb.keyCode;
					}
					
					/* Register the event */
					ORYX.Log.debug("Register Plugin on Key Event: %0", eventName);
					if (pluginData.toggle === true && pluginData.buttonInstance) {
						this.registerOnEvent(eventName, function(){
							pluginData.buttonInstance.toggle(!pluginData.buttonInstance.pressed); // Toggle 
							pluginData.functionality.call(pluginData, pluginData.buttonInstance, pluginData.buttonInstance.pressed); // Call function
						});
					} else {
						this.registerOnEvent(eventName, pluginData.functionality)
					}
				
				}.bind(this));
			}
		}.bind(this));
	},
	
	isEqual: function(a,b){
		return a === b || (a.length === b.length && a.all(function(r){ return b.include(r) }))
	},
	
	isDirty: function(a){
		return a.any(function(shape){ return shape.isPropertyChanged() })
	},

	setSelection: function(elements, subSelectionElement, force) {
		
		if (!elements) { elements = []; }
		if (!(elements instanceof Array)) { elements = [elements]; }
		
		elements = elements.findAll(function(n){ return n && n instanceof ORYX.Core.Shape });
		
		if (elements[0] instanceof ORYX.Core.Canvas) {
			elements = [];
		}
		
		if (!force && this.isEqual(this.selection, elements) && !this.isDirty(elements)){
			return;
		}
		
		this.selection = elements;
		this._subSelection = subSelectionElement;
		
		this.handleEvents({type:ORYX.CONFIG.EVENT_SELECTION_CHANGED, elements:elements, subSelection: subSelectionElement, force: !!force})
	},
	
	updateSelection: function() {
		this.setSelection(this.selection, this._subSelection, true);
		/*var s = this.selection;
		this.setSelection();
		this.setSelection(s);*/
	},

	getCanvas: function() {
		return this._canvas;
	},
	

	/**
	*	option = {
	*		type: string,
	*		position: {x:int, y:int},
	*		connectingType:	uiObj-Class
	*		connectedShape: uiObj
	*		draggin: bool
	*		namespace: url
	*       parent: ORYX.Core.AbstractShape
	*		template: a template shape that the newly created inherits properties from.
	*		}
	*/
	createShape: function(option) {

		if(option && option.serialize && option.serialize instanceof Array){
		
			var type = option.serialize.find(function(obj){return (obj.prefix+"-"+obj.name) == "oryx-type"});
			var stencil = ORYX.Core.StencilSet.stencil(type.value);
		
			if(stencil.type() == 'node'){
				var newShapeObject = new ORYX.Core.Node({'eventHandlerCallback':this.handleEvents.bind(this)}, stencil);	
			} else {
				var newShapeObject = new ORYX.Core.Edge({'eventHandlerCallback':this.handleEvents.bind(this)}, stencil);	
			}
		
			this.getCanvas().add(newShapeObject);
			newShapeObject.deserialize(option.serialize);
		
			return newShapeObject;
		}

		// If there is no argument, throw an exception
		if(!option || !option.type || !option.namespace) { throw "To create a new shape you have to give an argument with type and namespace";}
		
		var canvas = this.getCanvas();
		var newShapeObject;

		// Get the shape type
		var shapetype = option.type;

		// Get the stencil set
		var sset = ORYX.Core.StencilSet.stencilSet(option.namespace);

		// Create an New Shape, dependents on an Edge or a Node
		if(sset.stencil(shapetype).type() == "node") {
			newShapeObject = new ORYX.Core.Node({'eventHandlerCallback':this.handleEvents.bind(this)}, sset.stencil(shapetype))
		} else {
			newShapeObject = new ORYX.Core.Edge({'eventHandlerCallback':this.handleEvents.bind(this)}, sset.stencil(shapetype))
		}
		
		// when there is a template, inherit the properties.
		if(option.template) {

			newShapeObject._jsonStencil.properties = option.template._jsonStencil.properties;
			newShapeObject.postProcessProperties();
		}

		// Add to the canvas
		if(option.parent && newShapeObject instanceof ORYX.Core.Node) {
			option.parent.add(newShapeObject);
		} else {
			canvas.add(newShapeObject);
		}
		
		
		// Set the position
		var point = option.position ? option.position : {x:100, y:200};
	
		
		var con;
		// If there is create a shape and in the argument there is given an ConnectingType and is instance of an edge
		if(option.connectingType && option.connectedShape && !(newShapeObject instanceof ORYX.Core.Edge)) {

			// there will be create a new Edge
			con = new ORYX.Core.Edge({'eventHandlerCallback':this.handleEvents.bind(this)}, sset.stencil(option.connectingType));
			
			// And both endings dockers will be referenced to the both shapes
			con.dockers.first().setDockedShape(option.connectedShape);
			
			var magnet = option.connectedShape.getDefaultMagnet()
			var cPoint = magnet ? magnet.bounds.center() : option.connectedShape.bounds.midPoint();
			con.dockers.first().setReferencePoint( cPoint );
			con.dockers.last().setDockedShape(newShapeObject);
			con.dockers.last().setReferencePoint(newShapeObject.getDefaultMagnet().bounds.center());		
			
			// The Edge will be added to the canvas and be updated
			canvas.add(con);	
			//con.update();
			
		} 
		
		// Move the new Shape to the position
		if(newShapeObject instanceof ORYX.Core.Edge && option.connectedShape) {

			newShapeObject.dockers.first().setDockedShape(option.connectedShape);
			
			if( option.connectedShape instanceof ORYX.Core.Node ){
				newShapeObject.dockers.first().setReferencePoint(option.connectedShape.getDefaultMagnet().bounds.center());					
				newShapeObject.dockers.last().bounds.centerMoveTo(point);			
			} else {
				newShapeObject.dockers.first().setReferencePoint(option.connectedShape.bounds.midPoint());								
			}

		} else {
			
			var b = newShapeObject.bounds
			if( newShapeObject instanceof ORYX.Core.Node && newShapeObject.dockers.length == 1){
				b = newShapeObject.dockers.first().bounds
			}
			
			b.centerMoveTo(point);
			
			var upL = b.upperLeft();
			b.moveBy( -Math.min(upL.x, 0) , -Math.min(upL.y, 0) )
			
			var lwR = b.lowerRight();
			b.moveBy( -Math.max(lwR.x-canvas.bounds.width(), 0) , -Math.max(lwR.y-canvas.bounds.height(), 0) )
			
		}
		
		// Update the shape
		if (newShapeObject instanceof ORYX.Core.Edge) {
			newShapeObject._update(false);
		}
		
		// And refresh the selection
		if(!(newShapeObject instanceof ORYX.Core.Edge)&&!(option.dontUpdateSelection)) {
			this.setSelection([newShapeObject]);
		}
		
		if(con && con.alignDockers) {
			con.alignDockers();
		} 
		if(newShapeObject.alignDockers) {
			newShapeObject.alignDockers();
		}

		return newShapeObject;
	},
	
	deleteShape: function(shape) {
		
		if (!shape || !shape.parent){ return }
		
		//remove shape from parent
		// this also removes it from DOM
		shape.parent.remove(shape);
		
		//delete references to outgoing edges
		shape.getOutgoingShapes().each(function(os) {
			var docker = os.getDockers().first();
			if(docker && docker.getDockedShape() == shape) {
				docker.setDockedShape(undefined);
			}
		});
		
		//delete references to incoming edges
		shape.getIncomingShapes().each(function(is) {
			var docker = is.getDockers().last();
			if(docker && docker.getDockedShape() == shape) {
				docker.setDockedShape(undefined);
			}
		});
		
		//delete references of the shape's dockers
		shape.getDockers().each(function(docker) {
			docker.setDockedShape(undefined);
		});
	},
	
	/**
	 * Returns an object with meta data about the model.
	 * Like name, description, ...
	 * 
	 * Empty object with the current backend.
	 * 
	 * @return {Object} Meta data about the model
	 */
	getModelMetaData: function() {
		return this.modelMetaData;
	},

	/* Event-Handler Methods */
	
	/**
	* Helper method to execute an event immediately. The event is not
	* scheduled in the _eventsQueue. Needed to handle Layout-Callbacks.
	*/
	_executeEventImmediately: function(eventObj) {
		if(this.DOMEventListeners.keys().member(eventObj.event.type)) {
			this.DOMEventListeners[eventObj.event.type].each((function(value) {
				value(eventObj.event, eventObj.arg);		
			}).bind(this));
		}
	},

	_executeEvents: function() {
		this._queueRunning = true;
		while(this._eventsQueue.length > 0) {
			var val = this._eventsQueue.shift();
			this._executeEventImmediately(val);
		}
		this._queueRunning = false;
	},
	
	/**
	 * Leitet die Events an die Editor-Spezifischen Event-Methoden weiter
	 * @param {Object} event Event , welches gefeuert wurde
	 * @param {Object} uiObj Target-UiObj
	 */
	handleEvents: function(event, uiObj) {
		
		ORYX.Log.trace("Dispatching event type %0 on %1", event.type, uiObj);

		switch(event.type) {
			case ORYX.CONFIG.EVENT_MOUSEDOWN:
				this._handleMouseDown(event, uiObj);
				break;
			case ORYX.CONFIG.EVENT_MOUSEMOVE:
				this._handleMouseMove(event, uiObj);
				break;
			case ORYX.CONFIG.EVENT_MOUSEUP:
				this._handleMouseUp(event, uiObj);
				break;
			case ORYX.CONFIG.EVENT_MOUSEOVER:
				this._handleMouseHover(event, uiObj);
				break;
			case ORYX.CONFIG.EVENT_MOUSEOUT:
				this._handleMouseOut(event, uiObj);
				break;
		}
		/* Force execution if necessary. Used while handle Layout-Callbacks. */
		if(event.forceExecution) {
			this._executeEventImmediately({event: event, arg: uiObj});
		} else {
			this._eventsQueue.push({event: event, arg: uiObj});
		}
		
		if(!this._queueRunning) {
			this._executeEvents();
		}
		
		// TODO: Make this return whether no listener returned false.
		// So that, when one considers bubbling undesireable, it won't happen.
		return false;
	},

	isValidEvent: function(e){
		try {
			var isInput = ["INPUT", "TEXTAREA"].include(e.target.tagName.toUpperCase());
			var gridHasFocus = e.target.className.include("x-grid3-focus") && !e.target.className.include("x-grid3-focus-canvas");
			return !isInput && !gridHasFocus;
		} catch(e){
			return false;
		}
	},

	catchKeyUpEvents: function(event) {
		if(!this._keyupEnabled) {
			return;
		}
		/* assure we have the current event. */
        if (!event) 
            event = window.event;
        
		// Checks if the event comes from some input field
		if (!this.isValidEvent(event)){
			return;
		}
		
		/* Create key up event type */
		var keyUpEvent = this.createKeyCombEvent(event,	ORYX.CONFIG.KEY_ACTION_UP);
		
		ORYX.Log.debug("Key Event to handle: %0", keyUpEvent);

		/* forward to dispatching. */
		this.handleEvents({type: keyUpEvent, event:event});
	},
	
	/**
	 * Catches all key down events and forward the appropriated event to 
	 * dispatching concerning to the pressed keys.
	 * 
	 * @param {Event} 
	 * 		The key down event to handle
	 */
	catchKeyDownEvents: function(event) {
		if(!this._keydownEnabled) {
			return;
		}
		/* Assure we have the current event. */
        if (!event) 
            event = window.event;
        
		/* Fixed in FF3 */
		// This is a mac-specific fix. The mozilla event object has no knowledge
		// of meta key modifier on osx, however, it is needed for certain
		// shortcuts. This fix adds the metaKey field to the event object, so
		// that all listeners that registered per Oryx plugin facade profit from
		// this. The original bug is filed in
		// https://bugzilla.mozilla.org/show_bug.cgi?id=418334
		//if (this.__currentKey == ORYX.CONFIG.KEY_CODE_META) {
		//	event.appleMetaKey = true;
		//}
		//this.__currentKey = pressedKey;
		
		// Checks if the event comes from some input field
		if (!this.isValidEvent(event)){
			return;
		}
		
		/* Create key up event type */
		var keyDownEvent = this.createKeyCombEvent(event, ORYX.CONFIG.KEY_ACTION_DOWN);
		
		ORYX.Log.debug("Key Event to handle: %0", keyDownEvent);
		
		/* Forward to dispatching. */
		this.handleEvents({type: keyDownEvent,event: event});
	},
	
	/**
	 * Creates the event type name concerning to the pressed keys.
	 * 
	 * @param {Event} keyDownEvent
	 * 		The source keyDownEvent to build up the event name
	 */
	createKeyCombEvent: function(keyEvent, keyAction) {

		/* Get the currently pressed key code. */
        var pressedKey = keyEvent.which || keyEvent.keyCode;
		//this.__currentKey = pressedKey;
		
		/* Event name */
		var eventName = "key.event";
		
		/* Key action */
		if(keyAction) {
			eventName += "." + keyAction;
		}
		
		/* Ctrl or apple meta key is pressed */
		if(keyEvent.ctrlKey || keyEvent.metaKey) {
			eventName += "." + ORYX.CONFIG.META_KEY_META_CTRL;
		}
		
		/* Alt key is pressed */
		if(keyEvent.altKey) {
			eventName += "." + ORYX.CONFIG.META_KEY_ALT;
		}
		
		/* Alt key is pressed */
		if(keyEvent.shiftKey) {
			eventName += "." + ORYX.CONFIG.META_KEY_SHIFT;
		}
		
		/* Return the composed event name */
		return  eventName + "." + pressedKey;
	},

	_handleMouseDown: function(event, uiObj) {
		
		// get canvas.
		var canvas = this.getCanvas();
		// Try to get the focus
		canvas.focus()
	
		// find the shape that is responsible for this element's id.
		var element = event.currentTarget;
		var elementController = uiObj;

		// gather information on selection.
		var currentIsSelectable = (elementController !== null) &&
			(elementController !== undefined) && (elementController.isSelectable);
		var currentIsMovable = (elementController !== null) &&
			(elementController !== undefined) && (elementController.isMovable);
		var modifierKeyPressed = event.shiftKey || event.ctrlKey;
		var noObjectsSelected = this.selection.length === 0;
		var currentIsSelected = this.selection.member(elementController);


		// Rule #1: When there is nothing selected, select the clicked object.
		if(currentIsSelectable && noObjectsSelected) {

			this.setSelection([elementController]);

			ORYX.Log.trace("Rule #1 applied for mouse down on %0", element.id);

		// Rule #3: When at least one element is selected, and there is no
		// control key pressed, and the clicked object is not selected, select
		// the clicked object.
		} else if(currentIsSelectable && !noObjectsSelected &&
			!modifierKeyPressed && !currentIsSelected) {

			this.setSelection([elementController]);

			//var objectType = elementController.readAttributes();
			//alert(objectType[0] + ": " + objectType[1]);

			ORYX.Log.trace("Rule #3 applied for mouse down on %0", element.id);

		// Rule #4: When the control key is pressed, and the current object is
		// not selected, add it to the selection.
		} else if(currentIsSelectable && modifierKeyPressed
			&& !currentIsSelected) {
				
			var newSelection = this.selection.clone();
			newSelection.push(elementController)
			this.setSelection(newSelection)

			ORYX.Log.trace("Rule #4 applied for mouse down on %0", element.id);

		// Rule #6
		} else if(currentIsSelectable && currentIsSelected &&
			modifierKeyPressed) {

			var newSelection = this.selection.clone();
			this.setSelection(newSelection.without(elementController))

			ORYX.Log.trace("Rule #6 applied for mouse down on %0", elementController.id);

		// Rule #5: When there is at least one object selected and no control
		// key pressed, we're dragging.
		/*} else if(currentIsSelectable && !noObjectsSelected
			&& !modifierKeyPressed) {

			if(this.log.isTraceEnabled())
				this.log.trace("Rule #5 applied for mouse down on "+element.id);
*/
		// Rule #2: When clicked on something that is neither
		// selectable nor movable, clear the selection, and return.
		} else if (!currentIsSelectable && !currentIsMovable) {
			
			this.setSelection([]);
			
			ORYX.Log.trace("Rule #2 applied for mouse down on %0", element.id);

			return;

		// Rule #7: When the current object is not selectable but movable,
		// it is probably a control. Leave the selection unchanged but set
		// the movedObject to the current one and enable Drag. Dockers will
		// be processed in the dragDocker plugin.
		} else if(!currentIsSelectable && currentIsMovable && !(elementController instanceof ORYX.Core.Controls.Docker)) {
			
			// TODO: If there is any moveable elements, do this in a plugin
			//ORYX.Core.UIEnableDrag(event, elementController);

			ORYX.Log.trace("Rule #7 applied for mouse down on %0", element.id);
		
		// Rule #8: When the element is selectable and is currently selected and no 
		// modifier key is pressed
		} else if(currentIsSelectable && currentIsSelected &&
			!modifierKeyPressed) {
			
			this._subSelection = this._subSelection != elementController ? elementController : undefined;
						
			this.setSelection(this.selection, this._subSelection);
			
			ORYX.Log.trace("Rule #8 applied for mouse down on %0", element.id);
		}
		
		
		// prevent event from bubbling, return.
		//Event.stop(event);
		return;
	},

	_handleMouseMove: function(event, uiObj) {
		return;
	},

	_handleMouseUp: function(event, uiObj) {
		// get canvas.
		var canvas = this.getCanvas();

		// find the shape that is responsible for this elemement's id.
		var elementController = uiObj;

		//get event position
		var evPos = this.eventCoordinates(event);

		//Event.stop(event);
	},

	_handleMouseHover: function(event, uiObj) {
		return;
	},

	_handleMouseOut: function(event, uiObj) {
		return;
	},

	/**
	 * Calculates the event coordinates to SVG document coordinates.
	 * @param {Event} event
	 * @return {SVGPoint} The event coordinates in the SVG document
	 */
	eventCoordinates: function(event) {

		var canvas = this.getCanvas();

		var svgPoint = canvas.node.ownerSVGElement.createSVGPoint();
		svgPoint.x = event.clientX;
		svgPoint.y = event.clientY;
		var matrix = canvas.node.getScreenCTM();
		return svgPoint.matrixTransform(matrix.inverse());
	}
};
ORYX.Editor = Clazz.extend(ORYX.Editor);

/**
 * Creates a new ORYX.Editor instance by fetching a model from given url and passing it to the constructur
 * @param {String} modelUrl The JSON URL of a model.
 * @param {Object} config Editor config passed to the constructur, merged with the response of the request to modelUrl
 */
ORYX.Editor.createByUrl = function(modelUrl, config){
    if(!config) config = {};
    
    new Ajax.Request(modelUrl, {
      method: 'GET',
      onSuccess: function(transport) {
        var editorConfig = Ext.decode(transport.responseText);
        editorConfig = Ext.applyIf(editorConfig, config);
        new ORYX.Editor(editorConfig);
      }.bind(this)
    });
}

// TODO Implement namespace awareness on attribute level.
/**
 * graft() function
 * Originally by Sean M. Burke from interglacial.com, altered for usage with
 * SVG and namespace (xmlns) support. Be sure you understand xmlns before
 * using this funtion, as it creates all grafted elements in the xmlns
 * provided by you and all element's attribures in default xmlns. If you
 * need to graft elements in a certain xmlns and wish to assign attributes
 * in both that and another xmlns, you will need to do stepwise grafting,
 * adding non-default attributes yourself or you'll have to enhance this
 * function. Latter, I would appreciate: martin�apfelfabrik.de
 * @param {Object} namespace The namespace in which
 * 					elements should be grafted.
 * @param {Object} parent The element that should contain the grafted
 * 					structure after the function returned.
 * @param {Object} t the crafting structure.
 * @param {Object} doc the document in which grafting is performed.
 */
ORYX.Editor.graft = function(namespace, parent, t, doc) {

    doc = (doc || (parent && parent.ownerDocument) || document);
    var e;
    if(t === undefined) {
        throw "Can't graft an undefined value";
    } else if(t.constructor == String) {
        e = doc.createTextNode( t );
    } else {
        for(var i = 0; i < t.length; i++) {
            if( i === 0 && t[i].constructor == String ) {
                var snared;
                snared = t[i].match( /^([a-z][a-z0-9]*)\.([^\s\.]+)$/i );
                if( snared ) {
                    e = doc.createElementNS(namespace, snared[1] );
                    e.setAttributeNS(null, 'class', snared[2] );
                    continue;
                }
                snared = t[i].match( /^([a-z][a-z0-9]*)$/i );
                if( snared ) {
                    e = doc.createElementNS(namespace, snared[1] );  // but no class
                    continue;
                }

                // Otherwise:
                e = doc.createElementNS(namespace, "span" );
                e.setAttribute(null, "class", "namelessFromLOL" );
            }

            if( t[i] === undefined ) {
                throw "Can't graft an undefined value in a list!";
            } else if( t[i].constructor == String || t[i].constructor == Array ) {
                this.graft(namespace, e, t[i], doc );
            } else if(  t[i].constructor == Number ) {
                this.graft(namespace, e, t[i].toString(), doc );
            } else if(  t[i].constructor == Object ) {
                // hash's properties => element's attributes
                for(var k in t[i]) { e.setAttributeNS(null, k, t[i][k] ); }
            } else {

			}
        }
    }
	if(parent) {
	    parent.appendChild( e );
	} else {

	}
    return e; // return the topmost created node
};

ORYX.Editor.provideId = function() {
	var res = [], hex = '0123456789ABCDEF';

	for (var i = 0; i < 36; i++) res[i] = Math.floor(Math.random()*0x10);

	res[14] = 4;
	res[19] = (res[19] & 0x3) | 0x8;

	for (var i = 0; i < 36; i++) res[i] = hex[res[i]];

	res[8] = res[13] = res[18] = res[23] = '-';

	return "oryx_" + res.join('');
};

/**
 * When working with Ext, conditionally the window needs to be resized. To do
 * so, use this class method. Resize is deferred until 100ms, and all subsequent
 * resizeBugFix calls are ignored until the initially requested resize is
 * performed.
 */
ORYX.Editor.resizeFix = function() {
	if (!ORYX.Editor._resizeFixTimeout) {
		ORYX.Editor._resizeFixTimeout = window.setTimeout(function() {
			window.resizeBy(1,1);
			window.resizeBy(-1,-1);
			ORYX.Editor._resizefixTimeout = null;
		}, 100); 
	}
};

ORYX.Editor.Cookie = {
	
	callbacks:[],
		
	onChange: function( callback, interval ){
	
		this.callbacks.push(callback);
		this.start( interval )
	
	},
	
	start: function( interval ){
		
		if( this.pe ){
			return;
		}
		
		var currentString = document.cookie;
		
		this.pe = new PeriodicalExecuter( function(){
			
			if( currentString != document.cookie ){
				currentString = document.cookie;
				this.callbacks.each(function(callback){ callback(this.getParams()) }.bind(this));
			}
			
		}.bind(this), ( interval || 10000 ) / 1000);	
	},
	
	stop: function(){

		if( this.pe ){
			this.pe.stop();
			this.pe = null;
		}
	},
		
	getParams: function(){
		var res = {};
		
		var p = document.cookie;
		p.split("; ").each(function(param){ res[param.split("=")[0]] = param.split("=")[1];});
		
		return res;
	},	
	
	toString: function(){
		return document.cookie;
	}
};

/**
 * Workaround for SAFARI/Webkit, because
 * when trying to check SVGSVGElement of instanceof there is 
 * raising an error
 * 
 */
ORYX.Editor.SVGClassElementsAreAvailable = true;
ORYX.Editor.setMissingClasses = function() {
	
	try {
		SVGElement;
	} catch(e) {
		ORYX.Editor.SVGClassElementsAreAvailable = false;
		SVGSVGElement 		= document.createElementNS('http://www.w3.org/2000/svg', 'svg').toString();
		SVGGElement 		= document.createElementNS('http://www.w3.org/2000/svg', 'g').toString();
		SVGPathElement 		= document.createElementNS('http://www.w3.org/2000/svg', 'path').toString();
		SVGTextElement 		= document.createElementNS('http://www.w3.org/2000/svg', 'text').toString();
		//SVGMarkerElement 	= document.createElementNS('http://www.w3.org/2000/svg', 'marker').toString();
		SVGRectElement 		= document.createElementNS('http://www.w3.org/2000/svg', 'rect').toString();
		SVGImageElement 	= document.createElementNS('http://www.w3.org/2000/svg', 'image').toString();
		SVGCircleElement 	= document.createElementNS('http://www.w3.org/2000/svg', 'circle').toString();
		SVGEllipseElement 	= document.createElementNS('http://www.w3.org/2000/svg', 'ellipse').toString();
		SVGLineElement	 	= document.createElementNS('http://www.w3.org/2000/svg', 'line').toString();
		SVGPolylineElement 	= document.createElementNS('http://www.w3.org/2000/svg', 'polyline').toString();
		SVGPolygonElement 	= document.createElementNS('http://www.w3.org/2000/svg', 'polygon').toString();
		
	}
	
}
ORYX.Editor.checkClassType = function( classInst, classType ) {
	
	if( ORYX.Editor.SVGClassElementsAreAvailable ){
		return classInst instanceof classType
	} else {
		return classInst == classType
	}
};
ORYX.Editor.makeExtModalWindowKeysave = function(facade) {
	Ext.override(Ext.Window,{
		beforeShow : function(){
			delete this.el.lastXY;
			delete this.el.lastLT;
			if(this.x === undefined || this.y === undefined){
				var xy = this.el.getAlignToXY(this.container, 'c-c');
				var pos = this.el.translatePoints(xy[0], xy[1]);
				this.x = this.x === undefined? pos.left : this.x;
				this.y = this.y === undefined? pos.top : this.y;
			}
			this.el.setLeftTop(this.x, this.y);
	
			if(this.expandOnShow){
				this.expand(false);
			}
	
			if(this.modal){
				facade.disableEvent(ORYX.CONFIG.EVENT_KEYDOWN);
				Ext.getBody().addClass("x-body-masked");
				this.mask.setSize(Ext.lib.Dom.getViewWidth(true), Ext.lib.Dom.getViewHeight(true));
				this.mask.show();
			}
		},
		afterHide : function(){
	        this.proxy.hide();
	        if(this.monitorResize || this.modal || this.constrain || this.constrainHeader){
	            Ext.EventManager.removeResizeListener(this.onWindowResize, this);
	        }
	        if(this.modal){
	            this.mask.hide();
	            facade.enableEvent(ORYX.CONFIG.EVENT_KEYDOWN);
	            Ext.getBody().removeClass("x-body-masked");
	        }
	        if(this.keyMap){
	            this.keyMap.disable();
	        }
	        this.fireEvent("hide", this);
	    },
	    beforeDestroy : function(){
	    	if(this.modal)
	    		facade.enableEvent(ORYX.CONFIG.EVENT_KEYDOWN);
	        Ext.destroy(
	            this.resizer,
	            this.dd,
	            this.proxy,
	            this.mask
	        );
	        Ext.Window.superclass.beforeDestroy.call(this);
	    }
	});
}
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}


new function(){
	
	ORYX.Core.UIEnableDrag = function(event, uiObj, option) {
	
		this.uiObj = uiObj;
		var upL = uiObj.bounds.upperLeft();
	
		var a = uiObj.node.getScreenCTM();
		this.faktorXY= {x: a.a, y: a.d};
		
		this.scrollNode = uiObj.node.ownerSVGElement.parentNode.parentNode;
		
		this.offSetPosition =  {
			x: Event.pointerX(event) - (upL.x * this.faktorXY.x),
			y: Event.pointerY(event) - (upL.y * this.faktorXY.y)};
	
		this.offsetScroll	= {x:this.scrollNode.scrollLeft,y:this.scrollNode.scrollTop};
			
		this.dragCallback = ORYX.Core.UIDragCallback.bind(this);
		this.disableCallback = ORYX.Core.UIDisableDrag.bind(this);
	
		this.movedCallback = option ? option.movedCallback : undefined;
		this.upCallback = option ? option.upCallback : undefined;
		
		document.documentElement.addEventListener(ORYX.CONFIG.EVENT_MOUSEUP, this.disableCallback, true);
		document.documentElement.addEventListener(ORYX.CONFIG.EVENT_MOUSEMOVE, 	this.dragCallback , false);
	
	};
	
	ORYX.Core.UIDragCallback = function(event) {
	
		var position = {
			x: Event.pointerX(event) - this.offSetPosition.x,
			y: Event.pointerY(event) - this.offSetPosition.y}
	
		position.x 	-= this.offsetScroll.x - this.scrollNode.scrollLeft; 
		position.y 	-= this.offsetScroll.y - this.scrollNode.scrollTop;
	
		position.x /= this.faktorXY.x;
		position.y /= this.faktorXY.y;
	
		this.uiObj.bounds.moveTo(position);
		//this.uiObj.update();
	
		if(this.movedCallback)
			this.movedCallback(event);
		
		Event.stop(event);
	
	};
	
	ORYX.Core.UIDisableDrag = function(event) {
		document.documentElement.removeEventListener(ORYX.CONFIG.EVENT_MOUSEMOVE, this.dragCallback, false);
		document.documentElement.removeEventListener(ORYX.CONFIG.EVENT_MOUSEUP, this.disableCallback, true);
		
		if(this.upCallback)
			this.upCallback(event);
			
		this.upCallback = undefined;
		this.movedCallback = undefined;		
		
		Event.stop(event);	
	};



	
	/**
	 * Implements a command to move docker by an offset.
	 * 
	 * @class ORYX.Core.MoveDockersCommand
	 * @param {Object} object An object with the docker id as key and docker and offset as object value
	 * 
	 */	
	ORYX.Core.MoveDockersCommand = ORYX.Core.Command.extend({
		construct: function(dockers){
			this.dockers 	= $H(dockers);
			this.edges 		= $H({});
		},
		execute: function(){
			if (this.changes) {
				this.executeAgain();
				return;
			} else {
				this.changes = $H({});
			}
			
			this.dockers.values().each(function(docker){
				var edge = docker.docker.parent;
				if (!edge){ return }
				
				if (!this.changes[edge.getId()]) {
					this.changes[edge.getId()] = {
						edge				: edge,
						oldDockerPositions	: edge.dockers.map(function(r){ return r.bounds.center() })
					}
				}
				docker.docker.bounds.moveBy(docker.offset);
				this.edges[edge.getId()] = edge;
				docker.docker.update();
			}.bind(this));
			this.edges.each(function(edge){
				this.updateEdge(edge.value);
				if (this.changes[edge.value.getId()])
					this.changes[edge.value.getId()].dockerPositions = edge.value.dockers.map(function(r){ return r.bounds.center() })
			}.bind(this));
		},
		updateEdge: function(edge){
			edge._update(true);
			[edge.getOutgoingShapes(), edge.getIncomingShapes()].flatten().invoke("_update", [true])
		},
		executeAgain: function(){
			this.changes.values().each(function(change){
				// Reset the dockers
				this.removeAllDocker(change.edge);
				change.dockerPositions.each(function(pos, i){	
					if (i==0||i==change.dockerPositions.length-1){ return }					
					var docker = change.edge.createDocker(undefined, pos);
					docker.bounds.centerMoveTo(pos);
					docker.update();
				}.bind(this));
				this.updateEdge(change.edge);
			}.bind(this));
		},
		rollback: function(){
			this.changes.values().each(function(change){
				// Reset the dockers
				this.removeAllDocker(change.edge);
				change.oldDockerPositions.each(function(pos, i){	
					if (i==0||i==change.oldDockerPositions.length-1){ return }					
					var docker = change.edge.createDocker(undefined, pos);
					docker.bounds.centerMoveTo(pos);
					docker.update();
				}.bind(this));
				this.updateEdge(change.edge);
			}.bind(this));
		},
		removeAllDocker: function(edge){
			edge.dockers.slice(1, edge.dockers.length-1).each(function(docker){
				edge.removeDocker(docker);
			})
		}
	});
	
}();
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}

/**
 * @classDescription Base class for Shapes.
 * @extends ORYX.Core.AbstractShape
 */
ORYX.Core.Shape = {

	/**
	 * Constructor
	 */
	construct: function(options, stencil) {
		// call base class constructor
		arguments.callee.$.construct.apply(this, arguments);
		
		this.dockers = [];
		this.magnets = [];
		
		this._defaultMagnet;
		
		this.incoming = [];
		this.outgoing = [];
		
		this.nodes = [];
		
		this._dockerChangedCallback = this._dockerChanged.bind(this);
		
		//Hash map for all labels. Labels are not treated as children of shapes.
		this._labels = new Hash();
		
		// create SVG node
		this.node = ORYX.Editor.graft("http://www.w3.org/2000/svg",
			null,
			['g', {id:"svg-" + this.resourceId},
				['g', {"class": "stencils"},
					['g', {"class": "me"}],
					['g', {"class": "children", style:"overflow:hidden"}],
					['g', {"class": "edge"}]
				],
				['g', {"class": "controls"},
					['g', {"class": "dockers"}],
					['g', {"class": "magnets"}]				
				]
			]);
	},

	/**
	 * If changed flag is set, refresh method is called.
	 */
	update: function() {
		//if(this.isChanged) {
			//this.layout();
		//}
	},
	
	/**
	 * !!!Not called from any sub class!!!
	 */
	_update: function() {

	},
	
	/**
	 * Calls the super class refresh method
	 *  and updates the svg elements that are referenced by a property.
	 */
	refresh: function() {
		//call base class refresh method
		arguments.callee.$.refresh.apply(this, arguments);
		
		if(this.node.ownerDocument) {
			//adjust SVG to properties' values
			var me = this;
			this.propertiesChanged.each((function(propChanged) {
				if(propChanged.value) {
					var prop = this.properties[propChanged.key];
					var property = this.getStencil().property(propChanged.key);
					if (property != undefined) {
						this.propertiesChanged[propChanged.key] = false;
	
						//handle choice properties
						if(property.type() == ORYX.CONFIG.TYPE_CHOICE) {
							//iterate all references to SVG elements
							property.refToView().each((function(ref) {
								//if property is referencing a label, update the label
								if(ref !== "") {
									var label = this._labels[this.id + ref];
									if (label && property.item(prop)) {
										label.text(property.item(prop).title());
									}
								}
							}).bind(this));
								
							//if the choice's items are referencing SVG elements
							// show the selected and hide all other referenced SVG
							// elements
							var refreshedSvgElements = new Hash();
							property.items().each((function(item) {
								item.refToView().each((function(itemRef) {
									if(itemRef == "") { return; }
									
									var svgElem = this.node.ownerDocument.getElementById(this.id + itemRef);
		
									if(!svgElem) { return; }
									
									
									/* Do not refresh the same svg element multiple times */
									if(!refreshedSvgElements[svgElem.id] || prop == item.value()) {
										svgElem.setAttributeNS(null, 'display', ((prop == item.value()) ? 'inherit' : 'none'));
										refreshedSvgElements[svgElem.id] = svgElem;
									}
									
									// Reload the href if there is an image-tag
									if(ORYX.Editor.checkClassType(svgElem, SVGImageElement)) {
										svgElem.setAttributeNS('http://www.w3.org/1999/xlink', 'href', svgElem.getAttributeNS('http://www.w3.org/1999/xlink', 'href'));
									}
								}).bind(this));
							}).bind(this));
							
						} else { //handle properties that are not of type choice
							//iterate all references to SVG elements
							property.refToView().each((function(ref) {
								//if the property does not reference an SVG element,
								// do nothing
	
								if(ref === "") { return; }
			
								var refId = this.id + ref;
	
								//get the SVG element
								var svgElem = this.node.ownerDocument.getElementById(refId);
	
								//if the SVG element can not be found
								if(!svgElem || !(svgElem.ownerSVGElement)) { 
									//if the referenced SVG element is a SVGAElement, it cannot
									// be found with getElementById (Firefox bug).
									// this is a work around
									if(property.type() === ORYX.CONFIG.TYPE_URL || property.type() === ORYX.CONFIG.TYPE_DIAGRAM_LINK) {
										var svgElems = this.node.ownerDocument.getElementsByTagNameNS('http://www.w3.org/2000/svg', 'a');
										
										svgElem = $A(svgElems).find(function(elem) {
											return elem.getAttributeNS(null, 'id') === refId;
										});
										
										if(!svgElem) { return; } 
									} else {
										//this.propertiesChanged[propChanged.key] = true;
										return;
									}					
								}
								
								if (property.complexAttributeToView()) {
									var label = this._labels[refId];
									if (label) {
										try {
									    	propJson = prop.evalJSON();
									    	var value = propJson[property.complexAttributeToView()]
									    	label.text(value ? value : prop);
									    } catch (e) {
									    	label.text(prop);
									    }
									}
									
								} else {
	
									switch (property.type()) {
										case ORYX.CONFIG.TYPE_BOOLEAN:	
											
											if (typeof prop == "string")
												prop = prop === "true"
		
											svgElem.setAttributeNS(null, 'display', (!(prop === property.inverseBoolean())) ? 'inherit' : 'none');
											
											break;
										case ORYX.CONFIG.TYPE_COLOR:
											if(property.fill()) {
												if (svgElem.tagName.toLowerCase() === "stop"){
													if (prop){
														
														if (property.lightness() &&  property.lightness() !== 1){
															prop = ORYX.Utils.adjustLightness(prop, property.lightness());
														}
														
														svgElem.setAttributeNS(null, "stop-color", prop);
													
														// Adjust stop color of the others
														if (svgElem.parentNode.tagName.toLowerCase() === "radialgradient"){
															ORYX.Utils.adjustGradient(svgElem.parentNode, svgElem);
														}
													}
													
													// If there is no value, set opaque
													if (svgElem.parentNode.tagName.toLowerCase() === "radialgradient"){
														$A(svgElem.parentNode.getElementsByTagName('stop')).each(function(stop){
															stop.setAttributeNS(null, "stop-opacity", prop ? stop.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, 'default-stop-opacity') || 1 : 0);
														}.bind(this))
													}
												} else {
													svgElem.setAttributeNS(null, 'fill', prop);
												}
											}
											if(property.stroke()) {
												svgElem.setAttributeNS(null, 'stroke', prop);
											}
											break;
										case ORYX.CONFIG.TYPE_STRING:
											var label = this._labels[refId];
											if (label) {
												label.text(prop);
											}
											break;
										case ORYX.CONFIG.TYPE_INTEGER:
											var label = this._labels[refId];
											if (label) {
												label.text(prop);
											}
											break;
										case ORYX.CONFIG.TYPE_FLOAT:
											if(property.fillOpacity()) {
												svgElem.setAttributeNS(null, 'fill-opacity', prop);
											} 
											if(property.strokeOpacity()) {
												svgElem.setAttributeNS(null, 'stroke-opacity', prop);
											}
											if(!property.fillOpacity() && !property.strokeOpacity()) {
												var label = this._labels[refId];
												if (label) {
													label.text(prop);
												}
											}
											break;
										case ORYX.CONFIG.TYPE_URL:
										case ORYX.CONFIG.TYPE_DIAGRAM_LINK:
											//TODO what is the dafault path?
											var hrefAttr = svgElem.getAttributeNodeNS('http://www.w3.org/1999/xlink', 'xlink:href');
											if(hrefAttr) {
												hrefAttr.textContent = prop;
											} else {
												svgElem.setAttributeNS('http://www.w3.org/1999/xlink', 'xlink:href', prop);
											}	
											break;
									}
								}
							}).bind(this));
							
							
						}
					}
					
				}
			}).bind(this));
			
			//update labels
			this._labels.values().each(function(label) {
				label.update();
			});
		}
	},
	
	layout: function() {
		//this.getStencil().layout(this)
		var layoutEvents = this.getStencil().layout()
		if (layoutEvents) {
			layoutEvents.each(function(event) {
				
				// setup additional attributes
				event.shape = this;
				event.forceExecution = true;
				
				// do layouting
				this._delegateEvent(event);
			}.bind(this))
			
		}
	},
	
	/**
	 * Returns an array of Label objects.
	 */
	getLabels: function() {
		return this._labels.values();
	},
	
	/**
	 * Returns the label for a given ref
	 * @return {ORYX.Core.Label} Returns null if there is no label
	 */
	getLabel: function(ref){
		if (!ref){
			return null;
		}
		return (this._labels.find(function(o){
				return o.key.endsWith(ref);
			})||{}).value || null;
	},
	
	/**
	 * Hides all related labels
	 * 
	 */
	hideLabels: function(){
		this.getLabels().invoke("hide");
	},

	/**
	 * Shows all related labels
	 * 
	 */
	showLabels: function(){
		var labels = this.getLabels();
		labels.invoke("show");
		labels.each(function(label) {
				label.update();
		});
	},
	
	setOpacity: function(value, animate){
		
		// 0.0 <= value <= 1.0
		value = Math.max(Math.min((typeof value == "number" ? value : 1.0), 1.0), 0.0);
				
		//if (animate !== true){
			if (value !== 1.0){
				value = String(value);
				this.node.setAttributeNS(null, "fill-opacity", value)
				this.node.setAttributeNS(null, "stroke-opacity", value)
			} else {
				this.node.removeAttributeNS(null, "fill-opacity");
				this.node.removeAttributeNS(null, "stroke-opacity");
			}
		/*} else {
			var args = {opacity:{to:value}};
			if (!this.isVisible){
				this.show();
			}
			if (this.currentAnim){
				this.currentAnim.stop();
			}
			
			this.currentAnim = Ext.lib.Anim.run(this.node, args, 0.4, "easeOut", function(){
			    if (args.opacity.to === 0.0){
			        this.hide();
			    } else if (args.opacity.to === 1.0){
					this.node.removeAttributeNS(null, "style");
				}
				delete this.currentAnim;
			}, this)
		}*/

		

	},
	
	/**
	 * Returns an array of dockers of this object.
	 */
	getDockers: function() {
		return this.dockers;
	},
	
	getMagnets: function() {
		return this.magnets;
	},
	
	getDefaultMagnet: function() {
		if(this._defaultMagnet) {
			return this._defaultMagnet;
		} else if (this.magnets.length > 0) {
			return this.magnets[0];
		} else {
			return undefined;
		}
	},

	getParentShape: function() {
		return this.parent;
	},
	
	getIncomingShapes: function(iterator) {
		if(iterator) {
			this.incoming.each(iterator);
		}
		return this.incoming;
	},
	
	getIncomingNodes: function(iterator) {
        return this.incoming.select(function(incoming){
            var isNode = (incoming instanceof ORYX.Core.Node);
            if(isNode && iterator) iterator(incoming);
            return isNode;
        });
    },
	
	
	getOutgoingShapes: function(iterator) {
		if(iterator) {
			this.outgoing.each(iterator);
		}
		return this.outgoing;
	},
    
    getOutgoingNodes: function(iterator) {
        return this.outgoing.select(function(out){
            var isNode = (out instanceof ORYX.Core.Node);
            if(isNode && iterator) iterator(out);
            return isNode;
        });
    },
	
	getAllDockedShapes: function(iterator) {
		var result = this.incoming.concat(this.outgoing);
		if(iterator) {
			result.each(iterator);
		}
		return result
	},

	getCanvas: function() {
		if(this.parent instanceof ORYX.Core.Canvas) {
			return this.parent;
		} else if(this.parent instanceof ORYX.Core.Shape) {
			return this.parent.getCanvas();
		} else {
			return undefined;
		}
	},
	
	/**
	 * 
	 * @param {Object} deep
	 * @param {Object} iterator
	 */
	getChildNodes: function(deep, iterator) {
		if(!deep && !iterator) {
			return this.nodes.clone();
		} else {
			var result = [];
			this.nodes.each(function(uiObject) {
				if(!uiObject.isVisible){return}
				if(iterator) {
					iterator(uiObject);
				}
				result.push(uiObject);
				
				if(deep && uiObject instanceof ORYX.Core.Shape) {
					result = result.concat(uiObject.getChildNodes(deep, iterator));
				}
			});
	
			return result;
		}
	},
	
	/**
	 * Overrides the UIObject.add method. Adds uiObject to the correct sub node.
	 * @param {UIObject} uiObject
	 * @param {Number} index
	 */
	add: function(uiObject, index, silent) {
		//parameter has to be an UIObject, but
		// must not be an Edge.
		if(uiObject instanceof ORYX.Core.UIObject 
			&& !(uiObject instanceof ORYX.Core.Edge)) {
			
			if (!(this.children.member(uiObject))) {
				//if uiObject is child of another parent, remove it from that parent.
				if(uiObject.parent) {
					uiObject.parent.remove(uiObject, true);
				}

				//add uiObject to this Shape
				if(index != undefined)
					this.children.splice(index, 0, uiObject);
				else
					this.children.push(uiObject);

				//set parent reference
				uiObject.parent = this;

				//add uiObject.node to this.node depending on the type of uiObject
				var parent;
				if(uiObject instanceof ORYX.Core.Node) {
					parent = this.node.childNodes[0].childNodes[1];
					this.nodes.push(uiObject);
				} else if(uiObject instanceof ORYX.Core.Controls.Control) {
					var ctrls = this.node.childNodes[1];
					if(uiObject instanceof ORYX.Core.Controls.Docker) {
						parent = ctrls.childNodes[0];
						if (this.dockers.length >= 2){
							this.dockers.splice(index!==undefined?Math.min(index, this.dockers.length-1):this.dockers.length-1, 0, uiObject);
						} else {
							this.dockers.push(uiObject);
						}
					} else if(uiObject instanceof ORYX.Core.Controls.Magnet) {
						parent = ctrls.childNodes[1];
						this.magnets.push(uiObject);
					} else {
						parent = ctrls;
					}
				} else {	//UIObject
					parent = this.node;
				}

				if(index != undefined && index < parent.childNodes.length)
					uiObject.node = parent.insertBefore(uiObject.node, parent.childNodes[index]);
				else
					uiObject.node = parent.appendChild(uiObject.node);
					
				this._changed();
				//uiObject.bounds.registerCallback(this._changedCallback);
				
				
				if(this.eventHandlerCallback && silent !== true)
					this.eventHandlerCallback({type:ORYX.CONFIG.EVENT_SHAPEADDED,shape:uiObject})
					
			} else {

				ORYX.Log.warn("add: ORYX.Core.UIObject is already a child of this object.");
			}
		} else {

			ORYX.Log.warn("add: Parameter is not of type ORYX.Core.UIObject.");
		}
	},

	/**
	 * Overrides the UIObject.remove method. Removes uiObject.
	 * @param {UIObject} uiObject
	 */
	remove: function(uiObject, silent) {
		//if uiObject is a child of this object, remove it.
		if (this.children.member(uiObject)) {
			//remove uiObject from children
			var parent = uiObject.parent;

			this.children = this.children.without(uiObject);

			//delete parent reference of uiObject
			uiObject.parent = undefined;

			//delete uiObject.node from this.node
			if(uiObject instanceof ORYX.Core.Shape) {
				if(uiObject instanceof ORYX.Core.Edge) {
					uiObject.removeMarkers();
					uiObject.node = this.node.childNodes[0].childNodes[2].removeChild(uiObject.node);
				} else {
					uiObject.node = this.node.childNodes[0].childNodes[1].removeChild(uiObject.node);
					this.nodes = this.nodes.without(uiObject);
				}
			} else if(uiObject instanceof ORYX.Core.Controls.Control) {
				if (uiObject instanceof ORYX.Core.Controls.Docker) {
					uiObject.node = this.node.childNodes[1].childNodes[0].removeChild(uiObject.node);
					this.dockers = this.dockers.without(uiObject);
				} else if (uiObject instanceof ORYX.Core.Controls.Magnet) {
					uiObject.node = this.node.childNodes[1].childNodes[1].removeChild(uiObject.node);
					this.magnets = this.magnets.without(uiObject);
				} else {
					uiObject.node = this.node.childNodes[1].removeChild(uiObject.node);
				}
			}

			if(this.eventHandlerCallback && silent !== true)
				this.eventHandlerCallback({type: ORYX.CONFIG.EVENT_SHAPEREMOVED, shape: uiObject, parent: parent});
			
			this._changed();
			//uiObject.bounds.unregisterCallback(this._changedCallback);
		} else {

			ORYX.Log.warn("remove: ORYX.Core.UIObject is not a child of this object.");
		}
	},
	
	/**
	 * Calculate the Border Intersection Point between two points
	 * @param {PointA}
	 * @param {PointB}
	 */
	getIntersectionPoint: function() {
			
		var pointAX, pointAY, pointBX, pointBY;
		
		// Get the the two Points	
		switch(arguments.length) {
			case 2:
				pointAX = arguments[0].x;
				pointAY = arguments[0].y;
				pointBX = arguments[1].x;
				pointBY = arguments[1].y;
				break;
			case 4:
				pointAX = arguments[0];
				pointAY = arguments[1];
				pointBX = arguments[2];
				pointBY = arguments[3];
				break;
			default:
				throw "getIntersectionPoints needs two or four arguments";
		}
		
		
		
		// Defined an include and exclude point
		var includePointX, includePointY, excludePointX, excludePointY;

		var bounds = this.absoluteBounds();
		
		if(this.isPointIncluded(pointAX, pointAY, bounds)){
			includePointX = pointAX;
			includePointY = pointAY;
		} else {
			excludePointX = pointAX;
			excludePointY = pointAY;
		}

		if(this.isPointIncluded(pointBX, pointBY, bounds)){
			includePointX = pointBX;
			includePointY = pointBY;
		} else {
			excludePointX = pointBX;
			excludePointY = pointBY;
		}
				
		// If there is no inclue or exclude Shape, than return
		if(!includePointX || !includePointY || !excludePointX || !excludePointY) {
			return undefined;
		}

		var midPointX = 0;
		var midPointY = 0;		
		
		var refPointX, refPointY;
		
		var minDifferent = 1;
		// Get the UpperLeft and LowerRight
		//var ul = bounds.upperLeft();
		//var lr = bounds.lowerRight();
		
		var i = 0;
		
		while(true) {
			// Calculate the midpoint of the current to points	
			var midPointX = Math.min(includePointX, excludePointX) + ((Math.max(includePointX, excludePointX) - Math.min(includePointX, excludePointX)) / 2.0);
			var midPointY = Math.min(includePointY, excludePointY) + ((Math.max(includePointY, excludePointY) - Math.min(includePointY, excludePointY)) / 2.0);
			
			
			// Set the new midpoint by the means of the include of the bounds
			if(this.isPointIncluded(midPointX, midPointY, bounds)){
				includePointX = midPointX;
				includePointY = midPointY;
			} else {
				excludePointX = midPointX;
				excludePointY = midPointY;
			}			
			
			// Calc the length of the line
			var length = Math.sqrt(Math.pow(includePointX - excludePointX, 2) + Math.pow(includePointY - excludePointY, 2))
			// Calc a point one step from the include point
			refPointX = includePointX + ((excludePointX - includePointX) / length),
			refPointY = includePointY + ((excludePointY - includePointY) / length)
					
			
			// If the reference point not in the bounds, break
			if(!this.isPointIncluded(refPointX, refPointY, bounds)) {
				break
			}
							
			
		}

		// Return the last includepoint
		return {x:refPointX , y:refPointY};
	},

   
    
    /**
     * Calculate if the point is inside the Shape
     * @param {PointX}
     * @param {PointY} 
     */
    isPointIncluded: function(){
		return  false
	},

	/**
	 * Returns TRUE if the given node
	 * is a child node of the shapes node
	 * @param {Element} node
	 * @return {Boolean}
	 *
	 */
	containsNode: function(node){
		var me = this.node.firstChild.firstChild;
		while(node){
			if (node == me){
				return true;
			}
			node = node.parentNode;
		}
		return false
	},
    
    /**
     * Calculate if the point is over an special offset area
     * @param {Point}
     */
    isPointOverOffset: function(){
		return  this.isPointIncluded.apply( this , arguments )
	},
		
	_dockerChanged: function() {

	},
		
	/**
	 * Create a Docker for this Edge
	 *
	 */
	createDocker: function(index, position) {
		var docker = new ORYX.Core.Controls.Docker({eventHandlerCallback: this.eventHandlerCallback});
		docker.bounds.registerCallback(this._dockerChangedCallback);
		if(position) {
			docker.bounds.centerMoveTo(position);
		}
		this.add(docker, index);
		
		return docker
	},

	/**
	 * Get the serialized object
	 * return Array with hash-entrees (prefix, name, value)
	 * Following values will given:
	 * 		Bounds
	 * 		Outgoing Shapes
	 * 		Parent
	 */
	serialize: function() {
		var serializedObject = arguments.callee.$.serialize.apply(this);

		// Add the bounds
		serializedObject.push({name: 'bounds', prefix:'oryx', value: this.bounds.serializeForERDF(), type: 'literal'});

		// Add the outgoing shapes
		this.getOutgoingShapes().each((function(followingShape){
			serializedObject.push({name: 'outgoing', prefix:'raziel', value: '#'+ERDF.__stripHashes(followingShape.resourceId), type: 'resource'});			
		}).bind(this));

		// Add the parent shape, if the parent not the canvas
		//if(this.parent instanceof ORYX.Core.Shape){
			serializedObject.push({name: 'parent', prefix:'raziel', value: '#'+ERDF.__stripHashes(this.parent.resourceId), type: 'resource'});	
		//}			
		
		return serializedObject;
	},
		
		
	deserialize: function(serialize, json){
		arguments.callee.$.deserialize.apply(this, arguments);
		
		// Set the Bounds
		var bounds = serialize.find(function(ser){ return 'oryx-bounds' === (ser.prefix+"-"+ser.name) });
		if (bounds) {
			var b = bounds.value.replace(/,/g, " ").split(" ").without("");
			if (this instanceof ORYX.Core.Edge) {
				if (!this.dockers.first().isChanged)
					this.dockers.first().bounds.centerMoveTo(parseFloat(b[0]), parseFloat(b[1]));
				if (!this.dockers.last().isChanged)
					this.dockers.last().bounds.centerMoveTo(parseFloat(b[2]), parseFloat(b[3]));
			} else {
				this.bounds.set(parseFloat(b[0]), parseFloat(b[1]), parseFloat(b[2]), parseFloat(b[3]));
			}
		}
		
		if (json && json.labels instanceof Array){
			json.labels.each(function(slabel){
				var label = this.getLabel(slabel.ref);
				if (label){
					label.deserialize(slabel, this);
				}
			}.bind(this))
		}
	},
	
	toJSON: function(){
		var json = arguments.callee.$.toJSON.apply(this, arguments);
		
		var labels = [], id = this.id;
		this._labels.each(function(obj){
			var slabel = obj.value.serialize();
			if (slabel){
				slabel.ref = obj.key.replace(id, '');
				labels.push(slabel);
			}
		});
		
		if (labels.length > 0){
			json.labels = labels;
		}
		return json;
	},

		
	/**
	 * Private methods.
	 */

	/**
	 * Child classes have to overwrite this method for initializing a loaded
	 * SVG representation.
	 * @param {SVGDocument} svgDocument
	 */
	_init: function(svgDocument) {
		//adjust ids
		this._adjustIds(svgDocument, 0);
	},

	_adjustIds: function(element, idIndex) {
		if(element instanceof Element) {
			var eid = element.getAttributeNS(null, 'id');
			if(eid && eid !== "") {
				element.setAttributeNS(null, 'id', this.id + eid);
			} else {
				element.setAttributeNS(null, 'id', this.id + "_" + this.id + "_" + idIndex);
				idIndex++;
			}
			
			// Replace URL in fill attribute
			var fill = element.getAttributeNS(null, 'fill');
			if (fill&&fill.include("url(#")){
				fill = fill.replace(/url\(#/g, 'url(#'+this.id);
				element.setAttributeNS(null, 'fill', fill);
			}
			
			if(element.hasChildNodes()) {
				for(var i = 0; i < element.childNodes.length; i++) {
					idIndex = this._adjustIds(element.childNodes[i], idIndex);
				}
			}
		}
		return idIndex;
	},

	toString: function() { return "ORYX.Core.Shape " + this.getId() }
};
ORYX.Core.Shape = ORYX.Core.AbstractShape.extend(ORYX.Core.Shape);/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.Controls) {ORYX.Core.Controls = {};}


/**
 * @classDescription Abstract base class for all Controls.
 */
ORYX.Core.Controls.Control = ORYX.Core.UIObject.extend({
	
	toString: function() { return "Control " + this.id; }
 });/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/


/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.Controls) {ORYX.Core.Controls = {};}


/**
 * @classDescription Represents a movable docker that can be bound to a shape. Dockers are used
 * for positioning shape objects.
 * @extends {Control}
 * 
 * TODO absoluteXY und absoluteCenterXY von einem Docker liefern falsche Werte!!!
 */
ORYX.Core.Controls.Docker = ORYX.Core.Controls.Control.extend({
	/**
	 * Constructor
	 */
	construct: function() {
		arguments.callee.$.construct.apply(this, arguments);
		
		this.isMovable = true;				// Enables movability
		this.bounds.set(0, 0, 16, 16);		// Set the bounds
		this.referencePoint = undefined;		// Refrenzpoint 
		this._dockedShapeBounds = undefined;		
		this._dockedShape = undefined;
		this._oldRefPoint1 = undefined;
		this._oldRefPoint2 = undefined;
		
		//this.anchors = [];
		this.anchorLeft;
		this.anchorRight;
		this.anchorTop;
		this.anchorBottom;

		this.node = ORYX.Editor.graft("http://www.w3.org/2000/svg",
			null,
			['g']);

		// The DockerNode reprasentation
		this._dockerNode = ORYX.Editor.graft("http://www.w3.org/2000/svg",
			this.node,
			['g', {"pointer-events":"all"},
					['circle', {cx:"8", cy:"8", r:"8", stroke:"none", fill:"none"}],
					['circle', {cx:"8", cy:"8", r:"3", stroke:"black", fill:"red", "stroke-width":"1"}]
				]);
			
		// The ReferenzNode reprasentation	
		this._referencePointNode = ORYX.Editor.graft("http://www.w3.org/2000/svg",
			this.node,	
			['g', {"pointer-events":"none"},
				['circle', {cx: this.bounds.upperLeft().x, cy: this.bounds.upperLeft().y, r: 3, fill:"red", "fill-opacity":0.4}]]);

		// Hide the Docker
		this.hide();
		
		//Add to the EventHandler
		this.addEventHandlers(this._dockerNode);

		// Buffer the Update Callback for un-/register on Event-Handler 
		this._updateCallback = this._changed.bind(this);
	},
	
	update: function() {
		// If there have an DockedShape	
		if(this._dockedShape) {
			if(this._dockedShapeBounds && this._dockedShape instanceof ORYX.Core.Node) {
				// Calc the delta of width and height of the lastBounds and the current Bounds
				var dswidth = this._dockedShapeBounds.width();
				var dsheight = this._dockedShapeBounds.height();
				if(!dswidth)
					dswidth = 1;
				if(!dsheight)
					dsheight = 1;	
				var widthDelta = 	this._dockedShape.bounds.width() 	/ dswidth;
				var heightDelta = 	this._dockedShape.bounds.height() 	/ dsheight;
				
				// If there is an different
				if(widthDelta !== 1.0 || heightDelta !== 1.0) {
					// Set the delta
					this.referencePoint.x *= widthDelta;
					this.referencePoint.y *= heightDelta;
				}
	
				// Clone these bounds
				this._dockedShapeBounds = this._dockedShape.bounds.clone();				
			}
			
			// Get the first and the last Docker of the parent Shape
			var dockerIndex = this.parent.dockers.indexOf(this)
			var dock1 = this;
			var dock2 = this.parent.dockers.length > 1 ? 
							(dockerIndex === 0?							// If there is the first element
							 	this.parent.dockers[dockerIndex + 1]:	// then take the next docker
								this.parent.dockers[dockerIndex - 1]):  // if not, then take the docker before
							undefined;
			
			// Calculate the first absolute Refenzpoint 
			var absoluteReferenzPoint1 = dock1.getDockedShape() ? 
				dock1.getAbsoluteReferencePoint() : 
				dock1.bounds.center();

			// Calculate the last absolute Refenzpoint 
			var absoluteReferenzPoint2 = dock2 && dock2.getDockedShape() ? 
				dock2.getAbsoluteReferencePoint() : 
				dock2 ? 
					dock2.bounds.center() :
					undefined;

			// If there is no last absolute Referenzpoint		
			if(!absoluteReferenzPoint2) {
				// Calculate from the middle of the DockedShape
				var center = this._dockedShape.absoluteCenterXY();
				var minDimension = this._dockedShape.bounds.width() * this._dockedShape.bounds.height(); 
				absoluteReferenzPoint2 = {
					x: absoluteReferenzPoint1.x + (center.x - absoluteReferenzPoint1.x) * -minDimension,
					y: absoluteReferenzPoint1.y + (center.y - absoluteReferenzPoint1.y) * -minDimension
				}
			}
			
			var newPoint = undefined;
			
			/*if (!this._oldRefPoint1 || !this._oldRefPoint2 ||
				absoluteReferenzPoint1.x !== this._oldRefPoint1.x ||
				absoluteReferenzPoint1.y !== this._oldRefPoint1.y ||
				absoluteReferenzPoint2.x !== this._oldRefPoint2.x ||
				absoluteReferenzPoint2.y !== this._oldRefPoint2.y) {*/
				
				// Get the new point for the Docker, calucalted by the intersection point of the Shape and the two points
				newPoint = this._dockedShape.getIntersectionPoint(absoluteReferenzPoint1, absoluteReferenzPoint2);
				
				// If there is new point, take the referencepoint as the new point
				if(!newPoint) {
					newPoint = this.getAbsoluteReferencePoint();
				}
				
				if(this.parent && this.parent.parent) {
					var grandParentPos = this.parent.parent.absoluteXY();
					newPoint.x -= grandParentPos.x;
					newPoint.y -= grandParentPos.y;
				}
				
				// Set the bounds to the new point
				this.bounds.centerMoveTo(newPoint)
			
				this._oldRefPoint1 = absoluteReferenzPoint1;
				this._oldRefPoint2 = absoluteReferenzPoint2;
			} 
			/*else {
				newPoint = this.bounds.center();
			}*/
			
			
	//	}
		
		// Call the super class
		arguments.callee.$.update.apply(this, arguments);
	},

	/**
	 * Calls the super class refresh method and updates the view of the docker.
	 */
	refresh: function() {
		arguments.callee.$.refresh.apply(this, arguments);
		
		// Refresh the dockers node
		var p = this.bounds.upperLeft();
		this._dockerNode.setAttributeNS(null, 'transform','translate(' + p.x + ', ' + p.y + ')');
		
		// Refresh the referencepoints node
		p = Object.clone(this.referencePoint);
		
		if(p && this._dockedShape){
			var upL 
			if(this.parent instanceof ORYX.Core.Edge) {
				upL = this._dockedShape.absoluteXY();
			} else {
				upL = this._dockedShape.bounds.upperLeft();
			}
			p.x += upL.x;
			p.y += upL.y;
		} else {
			p = this.bounds.center();
		}			

		this._referencePointNode.setAttributeNS(null, 'transform','translate(' + p.x + ', ' + p.y + ')');
	},

	/**
	 * Set the reference point
	 * @param {Object} point
	 */	
	setReferencePoint: function(point) {
		// Set the referencepoint
		if(this.referencePoint !== point &&
			(!this.referencePoint || 
			!point ||
			this.referencePoint.x !== point.x || 
			this.referencePoint.y !== point.y)) {
				
			this.referencePoint = point;
			this._changed();			
		}

		
		// Update directly, because the referencepoint has no influence of the bounds
		//this.refresh();
	},
	
	/**
	 * Get the absolute referencepoint
	 */
	getAbsoluteReferencePoint: function() {
		if(!this.referencePoint || !this._dockedShape) {
			return undefined;
		} else {
			var absUL = this._dockedShape.absoluteXY();
			return {	
						x: this.referencePoint.x + absUL.x,
						y: this.referencePoint.y + absUL.y
					}
		}
	},	
	
	/**
	 * Set the docked Shape from the docker
	 * @param {Object} shape
	 */
	setDockedShape: function(shape) {

		// If there is an old docked Shape
		if(this._dockedShape) {
			this._dockedShape.bounds.unregisterCallback(this._updateCallback)
			
			// Delete the Shapes from the incoming and outgoing array
			// If this Docker the incoming of the Shape
			if(this === this.parent.dockers.first()) {
				
				this.parent.incoming = this.parent.incoming.without(this._dockedShape);
				this._dockedShape.outgoing = this._dockedShape.outgoing.without(this.parent);
			
			// If this Docker the outgoing of the Shape	
			} else if (this === this.parent.dockers.last()){
	
				this.parent.outgoing = this.parent.outgoing.without(this._dockedShape);
				this._dockedShape.incoming = this._dockedShape.incoming.without(this.parent);
							
			}
			
		}

		
		// Set the new Shape
		this._dockedShape = shape;
		this._dockedShapeBounds = undefined;
		var referencePoint = undefined;
		
		// If there is an Shape, register the updateCallback if there are changes in the shape bounds
		if(this._dockedShape) {
			
			// Add the Shapes to the incoming and outgoing array
			// If this Docker the incoming of the Shape
			if(this === this.parent.dockers.first()) {
				
				this.parent.incoming.push(shape);
				shape.outgoing.push(this.parent);
			
			// If this Docker the outgoing of the Shape	
			} else if (this === this.parent.dockers.last()){
	
				this.parent.outgoing.push(shape);
				shape.incoming.push(this.parent);
							
			}
			
			// Get the bounds and set the new referencepoint
			var bounds = this.bounds;
			var absUL = shape.absoluteXY();
			
			/*if(shape.parent){
				var b = shape.parent.bounds.upperLeft();
				absUL.x -= b.x;
				absUL.y -= b.y;
			}*/
			
			referencePoint = {
				x: bounds.center().x - absUL.x,
				y: bounds.center().y - absUL.y
			}	
						
			this._dockedShapeBounds = this._dockedShape.bounds.clone();
			
			this._dockedShape.bounds.registerCallback(this._updateCallback);
			
			// Set the color of the docker as docked
			this.setDockerColor(ORYX.CONFIG.DOCKER_DOCKED_COLOR);				
		} else {
			// Set the color of the docker as undocked
			this.setDockerColor(ORYX.CONFIG.DOCKER_UNDOCKED_COLOR);
		}

		// Set the referencepoint
		this.setReferencePoint(referencePoint);
		this._changed();
		//this.update();
	},
	
	/**
	 * Get the docked Shape
	 */
	getDockedShape: function() {
		return this._dockedShape;
	},

	/**
	 * Returns TRUE if the docker has a docked shape
	 */
	isDocked: function() {
		return !!this._dockedShape;
	},
		
	/**
	 * Set the Color of the Docker
	 * @param {Object} color
	 */
	setDockerColor: function(color) {
		this._dockerNode.lastChild.setAttributeNS(null, "fill", color);
	},
	
	preventHiding: function(prevent){
		this._preventHiding = Math.max(0, (this._preventHiding||0) + (prevent ? 1 : -1));
	},
	
	/**
	 * Hides this UIObject and all its children.
	 */
	hide: function() {
		if (this._preventHiding){
			return false;
		}
		
		// Hide docker and reference point
		this.node.setAttributeNS(null, 'visibility', 'hidden');
		this._referencePointNode.setAttributeNS(null, 'visibility', 'hidden');
		
		this.children.each(function(uiObj) {
			uiObj.hide();	
		});				
	},
	
	/**
	 * Enables visibility of this UIObject and all its children.
	 */
	show: function() {
		// Show docker
		this.node.setAttributeNS(null, 'visibility', 'visible');
		
		// Hide reference point if the connected shape is an edge
		if (this.getDockedShape() instanceof ORYX.Core.Edge){
			this._referencePointNode.setAttributeNS(null, 'visibility', 'hidden');
		} else {
			this._referencePointNode.setAttributeNS(null, 'visibility', 'visible');
		}
		
		this.children.each(function(uiObj) {
			uiObj.show();	
		});		
	},
	
	toString: function() { return "Docker " + this.id }
});/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if(!ORYX) {var ORYX = {};}
if(!ORYX.Core) {ORYX.Core = {};}
if(!ORYX.Core.Controls) {ORYX.Core.Controls = {};}


/**
 * @classDescription Represents a magnet that is part of another shape and can
 * be attached to dockers. Magnets are used for linking edge objects
 * to other Shape objects.
 * @extends {Control}
 */
ORYX.Core.Controls.Magnet = ORYX.Core.Controls.Control.extend({
		
	/**
	 * Constructor
	 */
	construct: function() {
		arguments.callee.$.construct.apply(this, arguments);
		
		//this.anchors = [];
		this.anchorLeft;
		this.anchorRight;
		this.anchorTop;
		this.anchorBottom;
		
		this.bounds.set(0, 0, 16, 16);
		
		//graft magnet's root node into owner's control group.
		this.node = ORYX.Editor.graft("http://www.w3.org/2000/svg",
			null,
			['g', {"pointer-events":"all"},
					['circle', {cx:"8", cy:"8", r:"4", stroke:"none", fill:"red", "fill-opacity":"0.3"}],
				]);
			
		this.hide();
	},
	
	update: function() {
		arguments.callee.$.update.apply(this, arguments);
		
		//this.isChanged = true;
	},
	
	_update: function() {		
		arguments.callee.$.update.apply(this, arguments);
		
		//this.isChanged = true;
	},
	
	refresh: function() {
		arguments.callee.$.refresh.apply(this, arguments);

		var p = this.bounds.upperLeft();
		/*if(this.parent) {
			var parentPos = this.parent.bounds.upperLeft();
			p.x += parentPos.x;
			p.y += parentPos.y;
		}*/
		
		this.node.setAttributeNS(null, 'transform','translate(' + p.x + ', ' + p.y + ')');
	},
	
	show: function() {
		//this.refresh();
		arguments.callee.$.show.apply(this, arguments);
	},
	
	toString: function() {
		return "Magnet " + this.id;
	}
});
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * Init namespaces
 */
if (!ORYX) {
    var ORYX = {};
}
if (!ORYX.Core) {
    ORYX.Core = {};
}

/**
 * @classDescription Abstract base class for all Nodes.
 * @extends ORYX.Core.Shape
 */
ORYX.Core.Node = {

    /**
     * Constructor
     * @param options {Object} A container for arguments.
     * @param stencil {Stencil}
     */
    construct: function(options, stencil){
        arguments.callee.$.construct.apply(this, arguments);
        
        this.isSelectable = true;
        this.isMovable = true;
		this._dockerUpdated = false;
        
        this._oldBounds = new ORYX.Core.Bounds(); //init bounds with undefined values
        this._svgShapes = []; //array of all SVGShape objects of
        // SVG representation
        
        //TODO vielleicht in shape verschieben?
        this.minimumSize = undefined; // {width:..., height:...}
        this.maximumSize = undefined;
        
        //TODO vielleicht in shape oder uiobject verschieben?
        // vielleicht sogar isResizable ersetzen?
        this.isHorizontallyResizable = false;
        this.isVerticallyResizable = false;
        
        this.dataId = undefined;
        
        this._init(this._stencil.view());
    },
        
    /**
     * This method checks whether the shape is resized correctly and calls the
     * super class update method.
     */
    _update: function(){
		
		this.dockers.invoke("update");
		if (this.isChanged) {

			var bounds = this.bounds;
            var oldBounds = this._oldBounds;
						
			if (this.isResized) {
			
				var widthDelta = bounds.width() / oldBounds.width();
				var heightDelta = bounds.height() / oldBounds.height();
				
				//iterate over all relevant svg elements and resize them
				this._svgShapes.each(function(svgShape){
					//adjust width
					if (svgShape.isHorizontallyResizable) {
						svgShape.width = svgShape.oldWidth * widthDelta;
					}
					//adjust height
					if (svgShape.isVerticallyResizable) {
						svgShape.height = svgShape.oldHeight * heightDelta;
					}
					
					//check, if anchors are set
					var anchorOffset;
					var leftIncluded = svgShape.anchorLeft;
					var rightIncluded = svgShape.anchorRight;
					
					if (rightIncluded) {
						anchorOffset = oldBounds.width() - (svgShape.oldX + svgShape.oldWidth);
						if (leftIncluded) {
							svgShape.width = bounds.width() - svgShape.x - anchorOffset;
						}
						else {
							svgShape.x = bounds.width() - (anchorOffset + svgShape.width);
						}
					}
					else 
						if (!leftIncluded) {
							svgShape.x = widthDelta * svgShape.oldX;
							if (!svgShape.isHorizontallyResizable) {
								svgShape.x = svgShape.x + svgShape.width * widthDelta / 2 - svgShape.width / 2;
							}
						}
					
					var topIncluded = svgShape.anchorTop;
					var bottomIncluded = svgShape.anchorBottom;
					
					if (bottomIncluded) {
						anchorOffset = oldBounds.height() - (svgShape.oldY + svgShape.oldHeight);
						if (topIncluded) {
							svgShape.height = bounds.height() - svgShape.y - anchorOffset;
						}
						else {
							// Hack for choreography task layouting
							if (!svgShape._isYLocked) {
								svgShape.y = bounds.height() - (anchorOffset + svgShape.height);
							}
						}
					}
					else 
						if (!topIncluded) {
							svgShape.y = heightDelta * svgShape.oldY;
							if (!svgShape.isVerticallyResizable) {
								svgShape.y = svgShape.y + svgShape.height * heightDelta / 2 - svgShape.height / 2;
							}
						}
				});
				
				//check, if the current bounds is unallowed horizontally or vertically resized
				var p = {
					x: 0,
					y: 0
				};
				if (!this.isHorizontallyResizable && bounds.width() !== oldBounds.width()) {
					p.x = oldBounds.width() - bounds.width();
				}
				if (!this.isVerticallyResizable && bounds.height() !== oldBounds.height()) {
					p.y = oldBounds.height() - bounds.height();
				}
				if (p.x !== 0 || p.y !== 0) {
					bounds.extend(p);
				}
				
				//check, if the current bounds are between maximum and minimum bounds
				p = {
					x: 0,
					y: 0
				};
				var widthDifference, heightDifference;
				if (this.minimumSize) {
				
					ORYX.Log.debug("Shape (%0)'s min size: (%1x%2)", this, this.minimumSize.width, this.minimumSize.height);
					widthDifference = this.minimumSize.width - bounds.width();
					if (widthDifference > 0) {
						p.x += widthDifference;
					}
					heightDifference = this.minimumSize.height - bounds.height();
					if (heightDifference > 0) {
						p.y += heightDifference;
					}
				}
				if (this.maximumSize) {
				
					ORYX.Log.debug("Shape (%0)'s max size: (%1x%2)", this, this.maximumSize.width, this.maximumSize.height);
					widthDifference = bounds.width() - this.maximumSize.width;
					if (widthDifference > 0) {
						p.x -= widthDifference;
					}
					heightDifference = bounds.height() - this.maximumSize.height;
					if (heightDifference > 0) {
						p.y -= heightDifference;
					}
				}
				if (p.x !== 0 || p.y !== 0) {
					bounds.extend(p);
				}
				
				//update magnets
				
				var widthDelta = bounds.width() / oldBounds.width();
				var heightDelta = bounds.height() / oldBounds.height();
				
				var leftIncluded, rightIncluded, topIncluded, bottomIncluded, center, newX, newY;
				
				this.magnets.each(function(magnet){
					leftIncluded = magnet.anchorLeft;
					rightIncluded = magnet.anchorRight;
					topIncluded = magnet.anchorTop;
					bottomIncluded = magnet.anchorBottom;
					
					center = magnet.bounds.center();
					
					if (leftIncluded) {
						newX = center.x;
					}
					else 
						if (rightIncluded) {
							newX = bounds.width() - (oldBounds.width() - center.x)
						}
						else {
							newX = center.x * widthDelta;
						}
					
					if (topIncluded) {
						newY = center.y;
					}
					else 
						if (bottomIncluded) {
							newY = bounds.height() - (oldBounds.height() - center.y);
						}
						else {
							newY = center.y * heightDelta;
						}
					
					if (center.x !== newX || center.y !== newY) {
						magnet.bounds.centerMoveTo(newX, newY);
					}
				});
				
				//set new position of labels
				this.getLabels().each(function(label){
					// Set the position dependings on it anchor
					if (!label.isAnchorLeft()) {
						if (label.isAnchorRight()) {
							label.setX(bounds.width() - (oldBounds.width() - label.oldX))
						} else {
							label.setX((label.position?label.position.x:label.x) * widthDelta);
						}
					}
					if (!label.isAnchorTop()) {
						if (label.isAnchorBottom()) {
							label.setY(bounds.height() - (oldBounds.height() - label.oldY));
						} else {
							label.setY((label.position?label.position.y:label.y) * heightDelta);
						}
					}
					
					// If there is an position,
					// set the origin position as well
					if (label.position){
						if (!label.isOriginAnchorLeft()) {
							if (label.isOriginAnchorRight()) {
								label.setOriginX(bounds.width() - (oldBounds.width() - label.oldX))
							} else {
								label.setOriginX(label.x * widthDelta);
							}
						}
						if (!label.isOriginAnchorTop()) {
							if (label.isOriginAnchorBottom()) {
								label.setOriginY(bounds.height() - (oldBounds.height() - label.oldY));
							} else {
								label.setOriginY(label.y * heightDelta);
							}
						}
					}
				});
				
				//update docker
				var docker = this.dockers[0];
				if (docker) {
					docker.bounds.unregisterCallback(this._dockerChangedCallback);
					if (!this._dockerUpdated) {
						docker.bounds.centerMoveTo(this.bounds.center());
						this._dockerUpdated = false;
					}
					
					docker.update();
					docker.bounds.registerCallback(this._dockerChangedCallback);
				}
				this.isResized = false;
			}
            
            this.refresh();
			
			this.isChanged = false;
			
			this._oldBounds = this.bounds.clone();
        }
		
		this.children.each(function(value) {
			if(!(value instanceof ORYX.Core.Controls.Docker)) {
				value._update();
			}
		});
		
		if (this.dockers.length > 0&&!this.dockers.first().getDockedShape()) {
			this.dockers.each(function(docker){
				docker.bounds.centerMoveTo(this.bounds.center())
			}.bind(this))
		}
		
		/*this.incoming.each((function(edge) {
			if(!(this.dockers[0] && this.dockers[0].getDockedShape() instanceof ORYX.Core.Node))
				edge._update(true);
		}).bind(this));
		
		this.outgoing.each((function(edge) {
			if(!(this.dockers[0] && this.dockers[0].getDockedShape() instanceof ORYX.Core.Node))
				edge._update(true);
		}).bind(this)); */
    },
    
    /**
     * This method repositions and resizes the SVG representation
     * of the shape.
     */
    refresh: function(){
        arguments.callee.$.refresh.apply(this, arguments);
        
        /** Movement */
        var x = this.bounds.upperLeft().x;
        var y = this.bounds.upperLeft().y;
        
        //set translation in transform attribute
        /*var attributeTransform = document.createAttributeNS(ORYX.CONFIG.NAMESPACE_SVG, "transform");
        attributeTransform.nodeValue = "translate(" + x + ", " + y + ")";
        this.node.firstChild.setAttributeNode(attributeTransform);*/
		// Move owner element
		this.node.firstChild.setAttributeNS(null, "transform", "translate(" + x + ", " + y + ")");
		// Move magnets
		this.node.childNodes[1].childNodes[1].setAttributeNS(null, "transform", "translate(" + x + ", " + y + ")");
        
        /** Resize */
        
        //iterate over all relevant svg elements and update them
        this._svgShapes.each(function(svgShape){
            svgShape.update();
        });
    },
    
    _dockerChanged: function(){
		var docker = this.dockers[0];
        
        //set the bounds of the the association
        this.bounds.centerMoveTo(docker.bounds.center());
        
		this._dockerUpdated = true;
        //this._update(true);
    },
    
    /**
     * This method traverses a tree of SVGElements and returns
     * all SVGShape objects. For each basic shape or path element
     * a SVGShape object is initialized.
     *
     * @param svgNode {SVGElement}
     * @return {Array} Array of SVGShape objects
     */
    _initSVGShapes: function(svgNode){
        var svgShapes = [];
        try {
            var svgShape = new ORYX.Core.SVG.SVGShape(svgNode);
            svgShapes.push(svgShape);
        } 
        catch (e) {
            //do nothing
        }
        
        if (svgNode.hasChildNodes()) {
            for (var i = 0; i < svgNode.childNodes.length; i++) {
                svgShapes = svgShapes.concat(this._initSVGShapes(svgNode.childNodes[i]));
            }
        }
        
        return svgShapes;
    },
    
    /**
     * Calculate if the point is inside the Shape
     * @param {PointX}
     * @param {PointY} 
     * @param {absoluteBounds} optional: for performance
     */
    isPointIncluded: function(pointX, pointY, absoluteBounds){
        // If there is an arguments with the absoluteBounds
        var absBounds = absoluteBounds && absoluteBounds instanceof ORYX.Core.Bounds ? absoluteBounds : this.absoluteBounds();
        
        if (!absBounds.isIncluded(pointX, pointY)) {
			return false;
		} else {
			
		}
			
        
        //point = Object.clone(point);
        var ul = absBounds.upperLeft();
        var x = pointX - ul.x;
        var y = pointY - ul.y;		
	
		var i=0;
		do {
			var isPointIncluded = this._svgShapes[i++].isPointIncluded( x, y );
		} while( !isPointIncluded && i < this._svgShapes.length)
		
		return isPointIncluded;

        /*return this._svgShapes.any(function(svgShape){
            return svgShape.isPointIncluded(point);
        });*/
    },
 
    
    /**
     * Calculate if the point is over an special offset area
     * @param {Point}
     */
    isPointOverOffset: function( pointX, pointY ){       
		var isOverEl = arguments.callee.$.isPointOverOffset.apply( this , arguments );
		
		if (isOverEl) {
						
	        // If there is an arguments with the absoluteBounds
	        var absBounds = this.absoluteBounds();
	        absBounds.widen( - ORYX.CONFIG.BORDER_OFFSET );
			
	        if ( !absBounds.isIncluded( pointX, pointY )) {
	            return true;
	        }		
		}
		
		return false;
		
	},
	   
    serialize: function(){
        var result = arguments.callee.$.serialize.apply(this);
        
        // Add the docker's bounds
        // nodes only have at most one docker!
        this.dockers.each((function(docker){
			if (docker.getDockedShape()) {
				var center = docker.referencePoint;
				center = center ? center : docker.bounds.center();
				result.push({
					name: 'docker',
					prefix: 'oryx',
					value: $H(center).values().join(','),
					type: 'literal'
				});
			}
        }).bind(this));
        
        // Get the spezific serialized object from the stencil
        try {
            //result = this.getStencil().serialize(this, result);

			var serializeEvent = this.getStencil().serialize();
			
			/*
			 * call serialize callback by reference, result should be found
			 * in serializeEvent.result
			 */
			if(serializeEvent.type) {
				serializeEvent.shape = this;
				serializeEvent.data = result;
				serializeEvent.result = undefined;
				serializeEvent.forceExecution = true;
				
				this._delegateEvent(serializeEvent);
				
				if(serializeEvent.result) {
					result = serializeEvent.result;
				}
			}
        } 
        catch (e) {
        }
        return result;
    },
    
    deserialize: function(data){
    	arguments.callee.$.deserialize.apply(this, arguments);
		
	    try {
            //data = this.getStencil().deserialize(this, data);

			var deserializeEvent = this.getStencil().deserialize();
			
			/*
			 * call serialize callback by reference, result should be found
			 * in serializeEventInfo.result
			 */
			if(deserializeEvent.type) {
				deserializeEvent.shape = this;
				deserializeEvent.data = data;
				deserializeEvent.result = undefined;
				deserializeEvent.forceExecution = true;
				
				this._delegateEvent(deserializeEvent);
				if(deserializeEvent.result) {
					data = deserializeEvent.result;
				}
			}
        } 
        catch (e) {
        }
		
		// Set the outgoing shapes
		var outgoing = data.findAll(function(ser){ return (ser.prefix+"-"+ser.name) == 'raziel-outgoing'});
		outgoing.each((function(obj){
			// TODO: Look at Canvas
			if(!this.parent) {return};
								
			// Set outgoing Shape
			var next = this.getCanvas().getChildShapeByResourceId(obj.value);
																	
			if(next){
				if(next instanceof ORYX.Core.Edge) {
					//Set the first docker of the next shape
					next.dockers.first().setDockedShape(this);
					next.dockers.first().setReferencePoint(next.dockers.first().bounds.center());
				} else if(next.dockers.length > 0) { //next is a node and next has a docker
					next.dockers.first().setDockedShape(this);
					//next.dockers.first().setReferencePoint({x: this.bounds.width() / 2.0, y: this.bounds.height() / 2.0});
				}
			}	
			
		}).bind(this));
        
        if (this.dockers.length === 1) {
            var dockerPos;
            dockerPos = data.find(function(entry){
                return (entry.prefix + "-" + entry.name === "oryx-dockers");
            });
            
            if (dockerPos) {
                var points = dockerPos.value.replace(/,/g, " ").split(" ").without("").without("#");
				if (points.length === 2 && this.dockers[0].getDockedShape()) {
                    this.dockers[0].setReferencePoint({
                        x: parseFloat(points[0]),
                        y: parseFloat(points[1])
                    });
                }
                else {
                    this.dockers[0].bounds.centerMoveTo(parseFloat(points[0]), parseFloat(points[1]));
                }
            }
        }
    },
    
    /**
     * This method excepts the SVGDoucment that is the SVG representation
     * of this shape.
     * The bounds of the shape are calculated, the SVG representation's upper left point
     * is moved to 0,0 and it the method sets if this shape is resizable.
     *
     * @param {SVGDocument} svgDocument
     */
    _init: function(svgDocument){
        arguments.callee.$._init.apply(this, arguments);
		
        var svgNode = svgDocument.getElementsByTagName("g")[0]; //outer most g node
        // set all required attributes
        var attributeTitle = svgDocument.ownerDocument.createAttributeNS(null, "title");
        attributeTitle.nodeValue = this.getStencil().title();
        svgNode.setAttributeNode(attributeTitle);
        
        var attributeId = svgDocument.ownerDocument.createAttributeNS(null, "id");
        attributeId.nodeValue = this.id;
        svgNode.setAttributeNode(attributeId);
        
        // 
        var stencilTargetNode = this.node.childNodes[0].childNodes[0]; //<g class=me>"
        svgNode = stencilTargetNode.appendChild(svgNode);
        
        // Add to the EventHandler
        this.addEventHandlers(svgNode.parentNode);
        
        /**set minimum and maximum size*/
        var minSizeAttr = svgNode.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, "minimumSize");
        if (minSizeAttr) {
            minSizeAttr = minSizeAttr.replace("/,/g", " ");
            var minSizeValues = minSizeAttr.split(" ");
            minSizeValues = minSizeValues.without("");
            
            if (minSizeValues.length > 1) {
                this.minimumSize = {
                    width: parseFloat(minSizeValues[0]),
                    height: parseFloat(minSizeValues[1])
                };
            }
            else {
                //set minimumSize to (1,1), so that width and height of the stencil can never be (0,0)
                this.minimumSize = {
                    width: 1,
                    height: 1
                };
            }
        }
        
        var maxSizeAttr = svgNode.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, "maximumSize");
        if (maxSizeAttr) {
            maxSizeAttr = maxSizeAttr.replace("/,/g", " ");
            var maxSizeValues = maxSizeAttr.split(" ");
            maxSizeValues = maxSizeValues.without("");
            
            if (maxSizeValues.length > 1) {
                this.maximumSize = {
                    width: parseFloat(maxSizeValues[0]),
                    height: parseFloat(maxSizeValues[1])
                };
            }
        }
        
        if (this.minimumSize && this.maximumSize &&
        (this.minimumSize.width > this.maximumSize.width ||
        this.minimumSize.height > this.maximumSize.height)) {
        
            //TODO wird verschluckt!!!
            throw this + ": Minimum Size must be greater than maxiumSize.";
        }
        
        /**get current bounds and adjust it to upperLeft == (0,0)*/
        //initialize all SVGShape objects
        this._svgShapes = this._initSVGShapes(svgNode);
        
        //get upperLeft and lowerRight of stencil
        var upperLeft = {
            x: undefined,
            y: undefined
        };
        var lowerRight = {
            x: undefined,
            y: undefined
        };
        var me = this;
        this._svgShapes.each(function(svgShape){
            upperLeft.x = (upperLeft.x !== undefined) ? Math.min(upperLeft.x, svgShape.x) : svgShape.x;
            upperLeft.y = (upperLeft.y !== undefined) ? Math.min(upperLeft.y, svgShape.y) : svgShape.y;
            lowerRight.x = (lowerRight.x !== undefined) ? Math.max(lowerRight.x, svgShape.x + svgShape.width) : svgShape.x + svgShape.width;
            lowerRight.y = (lowerRight.y !== undefined) ? Math.max(lowerRight.y, svgShape.y + svgShape.height) : svgShape.y + svgShape.height;
            
            /** set if resizing is enabled */
            //TODO isResizable durch die beiden anderen booleans ersetzen?
            if (svgShape.isHorizontallyResizable) {
                me.isHorizontallyResizable = true;
                me.isResizable = true;
            }
            if (svgShape.isVerticallyResizable) {
                me.isVerticallyResizable = true;
                me.isResizable = true;
            }
            if (svgShape.anchorTop && svgShape.anchorBottom) {
                me.isVerticallyResizable = true;
                me.isResizable = true;
            }
            if (svgShape.anchorLeft && svgShape.anchorRight) {
                me.isHorizontallyResizable = true;
                me.isResizable = true;
            }
        });
        
        //move all SVGShapes by -upperLeft
        this._svgShapes.each(function(svgShape){
            svgShape.x -= upperLeft.x;
            svgShape.y -= upperLeft.y;
            svgShape.update();
        });
        
        //set bounds of shape
        //the offsets are also needed for positioning the magnets and the docker
        var offsetX = upperLeft.x;
        var offsetY = upperLeft.y;
        
        lowerRight.x -= offsetX;
        lowerRight.y -= offsetY;
        upperLeft.x = 0;
        upperLeft.y = 0;
        
        //prevent that width or height of initial bounds is 0
        if (lowerRight.x === 0) {
            lowerRight.x = 1;
        }
        if (lowerRight.y === 0) {
            lowerRight.y = 1;
        }
        
        this._oldBounds.set(upperLeft, lowerRight);
        this.bounds.set(upperLeft, lowerRight);
        
        /**initialize magnets */
        
        var magnets = svgDocument.getElementsByTagNameNS(ORYX.CONFIG.NAMESPACE_ORYX, "magnets");
        
        if (magnets && magnets.length > 0) {
        
            magnets = $A(magnets[0].getElementsByTagNameNS(ORYX.CONFIG.NAMESPACE_ORYX, "magnet"));
            
            var me = this;
            magnets.each(function(magnetElem){
                var magnet = new ORYX.Core.Controls.Magnet({
                    eventHandlerCallback: me.eventHandlerCallback
                });
                var cx = parseFloat(magnetElem.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, "cx"));
                var cy = parseFloat(magnetElem.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, "cy"));
                magnet.bounds.centerMoveTo({
                    x: cx - offsetX,
                    y: cy - offsetY
                });
                
                //get anchors
                var anchors = magnetElem.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, "anchors");
                if (anchors) {
                    anchors = anchors.replace("/,/g", " ");
                    anchors = anchors.split(" ").without("");
                    for(var i = 0; i < anchors.length; i++) {
						switch(anchors[i].toLowerCase()) {
							case "left":
								magnet.anchorLeft = true;
								break;
							case "right":
								magnet.anchorRight = true;
								break;
							case "top":
								magnet.anchorTop = true;
								break;
							case "bottom":
								magnet.anchorBottom = true;
								break;
						}
					}
                }
                
                me.add(magnet);
                
                //check, if magnet is default magnet
                if (!this._defaultMagnet) {
                    var defaultAttr = magnetElem.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, "default");
                    if (defaultAttr && defaultAttr.toLowerCase() === "yes") {
                        me._defaultMagnet = magnet;
                    }
                }
            });
        }
        else {
            // Add a Magnet in the Center of Shape			
            var magnet = new ORYX.Core.Controls.Magnet();
            magnet.bounds.centerMoveTo(this.bounds.width() / 2, this.bounds.height() / 2);
            this.add(magnet);
        }
        
        /**initialize docker */
        var dockerElem = svgDocument.getElementsByTagNameNS(ORYX.CONFIG.NAMESPACE_ORYX, "docker");
        
        if (dockerElem && dockerElem.length > 0) {
            dockerElem = dockerElem[0];
            var docker = this.createDocker();
            var cx = parseFloat(dockerElem.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, "cx"));
            var cy = parseFloat(dockerElem.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, "cy"));
            docker.bounds.centerMoveTo({
                x: cx - offsetX,
                y: cy - offsetY
            });
            
            //get anchors
            var anchors = dockerElem.getAttributeNS(ORYX.CONFIG.NAMESPACE_ORYX, "anchors");
            if (anchors) {
                anchors = anchors.replace("/,/g", " ");
                anchors = anchors.split(" ").without("");
                
				for(var i = 0; i < anchors.length; i++) {
					switch(anchors[i].toLowerCase()) {
						case "left":
							docker.anchorLeft = true;
							break;
						case "right":
							docker.anchorRight = true;
							break;
						case "top":
							docker.anchorTop = true;
							break;
						case "bottom":
							docker.anchorBottom = true;
							break;
					}
				}
            }
        }
        
        /**initialize labels*/
        var textElems = svgNode.getElementsByTagNameNS(ORYX.CONFIG.NAMESPACE_SVG, 'text');
        $A(textElems).each((function(textElem){
            var label = new ORYX.Core.SVG.Label({
                textElement: textElem,
				shapeId: this.id
            });
            label.x -= offsetX;
            label.y -= offsetY;
            this._labels[label.id] = label;
			
			label.registerOnChange(this.layout.bind(this));
			
        }).bind(this));
    },
	
	/**
	 * Override the Method, that a docker is not shown
	 *
	 */
	createDocker: function() {
		var docker = new ORYX.Core.Controls.Docker({eventHandlerCallback: this.eventHandlerCallback});
		docker.bounds.registerCallback(this._dockerChangedCallback);
		
		this.dockers.push( docker );
		docker.parent = this;
		docker.bounds.registerCallback(this._changedCallback);		
		
		return docker		
	},	
    
    toString: function(){
        return this._stencil.title() + " " + this.id
    }
};
ORYX.Core.Node = ORYX.Core.Shape.extend(ORYX.Core.Node);
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/
NAMESPACE_SVG = "http://www.w3.org/2000/svg";
NAMESPACE_ORYX = "http://www.b3mn.org/oryx";


/**
 * Init namespaces
 */
if (!ORYX) {
    var ORYX = {};
}
if (!ORYX.Core) {
    ORYX.Core = {};
}


/**
 * @classDescription Abstract base class for all connections.
 * @extends {ORYX.Core.Shape}
 * @param options {Object}
 *
 * TODO da die verschiebung der Edge nicht ueber eine
 *  translation gemacht wird, die sich auch auf alle kind UIObjects auswirkt,
 *  muessen die kinder hier beim verschieben speziell betrachtet werden.
 *  Das sollte ueberarbeitet werden.
 *
 */
ORYX.Core.Edge = {
    /**
     * Constructor
     * @param {Object} options
     * @param {Stencil} stencil
     */
    construct: function(options, stencil){
        arguments.callee.$.construct.apply(this, arguments);
        
        this.isMovable = true;
        this.isSelectable = true;
		
		this._dockerUpdated = false;
        
        this._markers = new Hash(); //a hash map of SVGMarker objects where keys are the marker ids
        this._paths = [];
        this._interactionPaths = [];
        this._dockersByPath = new Hash();
        this._markersByPath = new Hash();
		
		/* Data structures to store positioning information of attached child nodes */ 
		this.attachedNodePositionData = new Hash();
        
        //TODO was muss hier initial erzeugt werden?
        var stencilNode = this.node.childNodes[0].childNodes[0];
        stencilNode = ORYX.Editor.graft("http://www.w3.org/2000/svg", stencilNode, ['g', {
            "pointer-events": "painted"
        }]);
        
        //Add to the EventHandler
        this.addEventHandlers(stencilNode.parentNode);
        
        
        this._oldBounds = this.bounds.clone();
        
        //load stencil
        this._init(this._stencil.view());
        
        if (stencil instanceof Array) {
            this.deserialize(stencil);
        }
        
    },
    
    _update: function(force){
		if(this._dockerUpdated || this.isChanged || force) {
			
			this.dockers.invoke("update");
			
	        if (false && (this.bounds.width() === 0 || this.bounds.height() === 0)) {
				var width = this.bounds.width();
				var height = this.bounds.height();
	            this.bounds.extend({
	                x: width === 0 ? 2 : 0,
	                y: height === 0 ? 2 : 0
	            });
	            this.bounds.moveBy({
	                x: width === 0 ? -1 : 0,
	                y: height === 0 ? -1 : 0
	            });
            
	        }
	        
	        // TODO: Bounds muss abhaengig des Eltern-Shapes gesetzt werden
	        var upL = this.bounds.upperLeft();
	        var oldUpL = this._oldBounds.upperLeft();
	        var oldWidth = this._oldBounds.width() === 0 ? this.bounds.width() : this._oldBounds.width();
	        var oldHeight = this._oldBounds.height() === 0 ? this.bounds.height() : this._oldBounds.height();
	        var diffX = upL.x - oldUpL.x;
	        var diffY = upL.y - oldUpL.y;
	        var diffWidth = (this.bounds.width() / oldWidth) || 1;
	        var diffHeight = (this.bounds.height() / oldHeight) || 1;
	        
	        this.dockers.each((function(docker){
	            // Unregister on BoundsChangedCallback
	            docker.bounds.unregisterCallback(this._dockerChangedCallback);
	            
	            // If there is any changes at the edge and is there is not an DockersUpdate
	            // set the new bounds to the docker
	            if (!this._dockerUpdated) {
	                docker.bounds.moveBy(diffX, diffY);
	                
	                if (diffWidth !== 1 || diffHeight !== 1) {
	                    var relX = docker.bounds.upperLeft().x - upL.x;
	                    var relY = docker.bounds.upperLeft().y - upL.y;
	                    
	                    docker.bounds.moveTo(upL.x + relX * diffWidth, upL.y + relY * diffHeight);
	                }
	            }
	            // Do Docker update and register on DockersBoundChange
	            docker.update();
	            docker.bounds.registerCallback(this._dockerChangedCallback);
	            
	        }).bind(this));
	        
	        if (this._dockerUpdated) {
	            var a = this.dockers.first().bounds.center();
	            var b = this.dockers.first().bounds.center();
	            
	            this.dockers.each((function(docker){
	                var center = docker.bounds.center();
	                a.x = Math.min(a.x, center.x);
	                a.y = Math.min(a.y, center.y);
	                b.x = Math.max(b.x, center.x);
	                b.y = Math.max(b.y, center.y);
	            }).bind(this));
	            
	            //set the bounds of the the association
	            this.bounds.set(Object.clone(a), Object.clone(b));
	        }
			
			upL = this.bounds.upperLeft(); oldUpL = this._oldBounds.upperLeft();
			diffWidth = (this.bounds.width() / (oldWidth||this.bounds.width())); diffHeight = (this.bounds.height() / (oldHeight||this.bounds.height())); 
	        diffX = upL.x - oldUpL.x; diffY = upL.y - oldUpL.y;
					
			//reposition labels
			this.getLabels().each(function(label) {
				
				if (label.getReferencePoint()){
					var ref = label.getReferencePoint();
					var from = ref.segment.from, to = ref.segment.to;
					if (!from || !from.parent || !to || !to.parent) {
						return;
					}
					
					var fromPosition = from.bounds.center(), toPosition = to.bounds.center();

					if (fromPosition.x === ref.segment.fromPosition.x && fromPosition.y === ref.segment.fromPosition.y &&
						toPosition.x === ref.segment.toPosition.x && toPosition.y === ref.segment.toPosition.y && !ref.dirty){
						return;
					}
					
					if (!this.parent.initializingShapes) {
						var oldDistance = ORYX.Core.Math.getDistanceBetweenTwoPoints(ref.segment.fromPosition, ref.segment.toPosition, ref.intersection);
						var newIntersection = ORYX.Core.Math.getPointBetweenTwoPoints(fromPosition, toPosition, isNaN(oldDistance) ? 0.5 : oldDistance);
						
						/**
						 * Set position
						 */
						// Get the orthogonal identity vector of the current segment
						var oiv = ORYX.Core.Math.getOrthogonalIdentityVector(fromPosition, toPosition);
						var isHor = Math.abs(oiv.y)===1, isVer = Math.abs(oiv.x)===1;
						oiv.x *= ref.distance; oiv.y *= ref.distance; 				// vector * distance
						oiv.x += newIntersection.x; oiv.y += newIntersection.y; 	// vector + the intersection point				
						var mx = isHor && ref.orientation && (ref.iorientation||ref.orientation).endsWith("r") ? -label.getWidth() : 0;		
						var my = isVer && ref.orientation && (ref.iorientation||ref.orientation).startsWith("l") ? -label.getHeight()+2 : 0;
						label.setX(oiv.x+mx); label.setY(oiv.y+my);
						
						// Update the reference point
						this.updateReferencePointOfLabel(label, newIntersection, from, to);
					} else {
						var oiv = ORYX.Core.Math.getOrthogonalIdentityVector(fromPosition, toPosition);
						oiv.x *= ref.distance; oiv.y *= ref.distance; // vector * distance
						oiv.x += ref.intersection.x; oiv.y += ref.intersection.y; // vector + the intersection point		
						label.setX(oiv.x); label.setY(oiv.y);
						ref.segment.fromPosition = fromPosition; ref.segment.toPosition = toPosition;		
					}
					
					return;	
				}
				
				// Update label position if no reference point is set
				if (label.position && !this.parent.initializingShapes){
					var x = label.position.x + (diffX * (diffWidth||1));
					if (x > this.bounds.lowerRight().x){
						x += this.bounds.width()-(this.bounds.width()/(diffWidth||1));
					}
					
					var y = label.position.y + (diffY * (diffHeight||1));
					if (y > this.bounds.lowerRight().y){
						y += this.bounds.height()-(this.bounds.height()/(diffHeight||1));
					}
					label.setX(x);label.setY(y);
					return;
				}
				
				switch (label.getEdgePosition()) {
					case "starttop":
						var angle = this._getAngle(this.dockers[0], this.dockers[1]);
						var pos = this.dockers.first().bounds.center();
						
						if (angle <= 90 || angle > 270) {
							label.horizontalAlign("left");
							label.verticalAlign("bottom");
							label.x = pos.x + label.getOffsetTop();
							label.y = pos.y - label.getOffsetTop();
							label.rotate(360 - angle, pos);
						} else {
							label.horizontalAlign("right");
							label.verticalAlign("bottom");
							label.x = pos.x - label.getOffsetTop();
							label.y = pos.y - label.getOffsetTop();
							label.rotate(180 - angle, pos);
						}
						
						break;

					case "startmiddle":
						var angle = this._getAngle(this.dockers[0], this.dockers[1]);
						var pos = this.dockers.first().bounds.center();
						
						if (angle <= 90 || angle > 270) {
							label.horizontalAlign("left");
							label.verticalAlign("bottom");
							label.x = pos.x + 2;
							label.y = pos.y + 4;
							label.rotate(360 - angle, pos);
						} else {
							label.horizontalAlign("right");
							label.verticalAlign("bottom");
							label.x = pos.x + 1;
							label.y = pos.y + 4;
							label.rotate(180 - angle, pos);
						}
						
						break;
												
					case "startbottom":
						var angle = this._getAngle(this.dockers[0], this.dockers[1]);
						var pos = this.dockers.first().bounds.center();
						
						if (angle <= 90 || angle > 270) {
							label.horizontalAlign("left");
							label.verticalAlign("top");
							label.x = pos.x + label.getOffsetBottom();
							label.y = pos.y + label.getOffsetBottom();
							label.rotate(360 - angle, pos);
						} else {
							label.horizontalAlign("right");
							label.verticalAlign("top");
							label.x = pos.x - label.getOffsetBottom();
							label.y = pos.y + label.getOffsetBottom();
							label.rotate(180 - angle, pos);
						}
						
						break;
					case "midtop":
						var numOfDockers = this.dockers.length;
						if(numOfDockers%2 == 0) {
							var angle = this._getAngle(this.dockers[numOfDockers/2-1], this.dockers[numOfDockers/2])
							var pos1 = this.dockers[numOfDockers/2-1].bounds.center();
							var pos2 = this.dockers[numOfDockers/2].bounds.center();
							var pos = {x:(pos1.x + pos2.x)/2.0, y:(pos1.y+pos2.y)/2.0};
							
							label.horizontalAlign("center");
							label.verticalAlign("bottom");
							label.x = pos.x;
							label.y = pos.y - label.getOffsetTop();
								
							if (angle <= 90 || angle > 270) {
								label.rotate(360 - angle, pos);
							} else {
								label.rotate(180 - angle, pos);
							}
						} else {
							var index = parseInt(numOfDockers/2);
							var angle = this._getAngle(this.dockers[index], this.dockers[index+1])
							var pos = this.dockers[index].bounds.center();
							
							if (angle <= 90 || angle > 270) {
								label.horizontalAlign("left");
								label.verticalAlign("bottom");
								label.x = pos.x + label.getOffsetTop();
								label.y = pos.y - label.getOffsetTop();
								label.rotate(360 - angle, pos);
							} else {
								label.horizontalAlign("right");
								label.verticalAlign("bottom");
								label.x = pos.x - label.getOffsetTop();
								label.y = pos.y - label.getOffsetTop();
								label.rotate(180 - angle, pos);
							}
						}
						
						break;
					case "midbottom":
						var numOfDockers = this.dockers.length;
						if(numOfDockers%2 == 0) {
							var angle = this._getAngle(this.dockers[numOfDockers/2-1], this.dockers[numOfDockers/2])
							var pos1 = this.dockers[numOfDockers/2-1].bounds.center();
							var pos2 = this.dockers[numOfDockers/2].bounds.center();
							var pos = {x:(pos1.x + pos2.x)/2.0, y:(pos1.y+pos2.y)/2.0};
							
							label.horizontalAlign("center");
							label.verticalAlign("top");
							label.x = pos.x;
							label.y = pos.y + label.getOffsetTop();
							
							if (angle <= 90 || angle > 270) {
								label.rotate(360 - angle, pos);
							} else {
								label.rotate(180 - angle, pos);
							}
						} else {
							var index = parseInt(numOfDockers/2);
							var angle = this._getAngle(this.dockers[index], this.dockers[index+1])
							var pos = this.dockers[index].bounds.center();
							
							if (angle <= 90 || angle > 270) {
								label.horizontalAlign("left");
								label.verticalAlign("top");
								label.x = pos.x + label.getOffsetBottom();
								label.y = pos.y + label.getOffsetBottom();
								label.rotate(360 - angle, pos);
							} else {
								label.horizontalAlign("right");
								label.verticalAlign("top");
								label.x = pos.x - label.getOffsetBottom();
								label.y = pos.y + label.getOffsetBottom();
								label.rotate(180 - angle, pos);
							}
						}
						
						break;
					case "endtop":
						var length = this.dockers.length;
						var angle = this._getAngle(this.dockers[length-2], this.dockers[length-1]);
						var pos = this.dockers.last().bounds.center();
						
						if (angle <= 90 || angle > 270) {
							label.horizontalAlign("right");
							label.verticalAlign("bottom");
							label.x = pos.x - label.getOffsetTop();
							label.y = pos.y - label.getOffsetTop();
							label.rotate(360 - angle, pos);
						} else {
							label.horizontalAlign("left");
							label.verticalAlign("bottom");
							label.x = pos.x + label.getOffsetTop();
							label.y = pos.y - label.getOffsetTop();
							label.rotate(180 - angle, pos);
						}
						
						break;
					case "endbottom":
						var length = this.dockers.length;
						var angle = this._getAngle(this.dockers[length-2], this.dockers[length-1]);
						var pos = this.dockers.last().bounds.center();
						
						if (angle <= 90 || angle > 270) {
							label.horizontalAlign("right");
							label.verticalAlign("top");
							label.x = pos.x - label.getOffsetBottom();
							label.y = pos.y + label.getOffsetBottom();
							label.rotate(360 - angle, pos);
						} else {
							label.horizontalAlign("left");
							label.verticalAlign("top");
							label.x = pos.x + label.getOffsetBottom();
							label.y = pos.y + label.getOffsetBottom();
							label.rotate(180 - angle, pos);
						}
						
						break;
				}
			}.bind(this));
			
			this.children.each(function(value) {
				if(value instanceof ORYX.Core.Node) {
					this.calculatePositionOfAttachedChildNode.call(this, value);
				}
			}.bind(this));
			
			this.refreshAttachedNodes();
			this.refresh();
			
			this.isChanged = false;
			this._dockerUpdated = false;
			
			this._oldBounds = this.bounds.clone();
        }
		

    },
	
	/**
	 *  Moves a point to the upperLeft of a node's bounds.
	 *  
	 *  @param {point} point
	 *  	The point to move
	 *  @param {ORYX.Core.Bounds} bounds
	 *  	The Bounds of the related noe
	 */
	movePointToUpperLeftOfNode: function(point, bounds) {
		point.x -= bounds.width()/2;
		point.y -= bounds.height()/2;
	},
	
	/**
	 * Refreshes the visual representation of edge's attached nodes.
	 */	
	refreshAttachedNodes: function() {
		this.attachedNodePositionData.values().each(function(nodeData) {
			var startPoint = nodeData.segment.docker1.bounds.center();
			var endPoint = nodeData.segment.docker2.bounds.center();
			this.relativizePoint(startPoint);
			this.relativizePoint(endPoint);
			
			var newNodePosition = new Object();
			
			/* Calculate new x-coordinate */
			newNodePosition.x = startPoint.x 
								+ nodeData.relativDistanceFromDocker1
									* (endPoint.x - startPoint.x);
			
			/* Calculate new y-coordinate */
			newNodePosition.y = startPoint.y 
								+ nodeData.relativDistanceFromDocker1
									* (endPoint.y - startPoint.y);
			
			/* Convert new position to the upper left of the node */
			this.movePointToUpperLeftOfNode(newNodePosition, nodeData.node.bounds);
			
			/* Move node to its new position */
			nodeData.node.bounds.moveTo(newNodePosition);
			nodeData.node._update();					
			
		}.bind(this));
	},
	
	/**
	 * Calculates the position of an edge's child node. The node is placed on 
	 * the path of the edge.
	 * 
	 * @param {node}
	 * 		The node to calculate the new position
	 * @return {Point}
	 * 		The calculated upper left point of the node's shape.
	 */
	calculatePositionOfAttachedChildNode: function(node) {
		/* Initialize position */
		var position = new Object();
		position.x = 0;
		position.y = 0;
		
		/* Case: Node was just added */
		if(!this.attachedNodePositionData[node.getId()]) {
			this.attachedNodePositionData[node.getId()] = new Object();
			this.attachedNodePositionData[node.getId()]
					.relativDistanceFromDocker1 = 0;
			this.attachedNodePositionData[node.getId()].node = node;
			this.attachedNodePositionData[node.getId()].segment = new Object();
			this.findEdgeSegmentForNode(node);
		}else if(node.isChanged) {
			this.findEdgeSegmentForNode(node);
		}
		
		
		
	},
	
	/**
	 * Finds the appropriate edge segement for a node.
	 * The segment is choosen, which has the smallest distance to the node.
	 * 
	 * @param {ORYX.Core.Node} node
	 * 		The concerning node
	 */
	findEdgeSegmentForNode: function(node) {
		var length = this.dockers.length;
		var smallestDistance = undefined;
		
		for(i=1;i<length;i++) {
			var lineP1 = this.dockers[i-1].bounds.center();
			var lineP2 = this.dockers[i].bounds.center();
			this.relativizePoint(lineP1);
			this.relativizePoint(lineP2);
			
			var nodeCenterPoint = node.bounds.center();
			var distance = ORYX.Core.Math.distancePointLinie(
															lineP1,
															lineP2, 
															nodeCenterPoint, 
															true);
			
			if((distance || distance == 0) && ((!smallestDistance && smallestDistance != 0) 
						|| distance < smallestDistance)) {
				
				smallestDistance = distance;
				
				this.attachedNodePositionData[node.getId()].segment.docker1 = 
													this.dockers[i-1];
				this.attachedNodePositionData[node.getId()].segment.docker2 = 
													this.dockers[i];
	
			}
			
			/* Either the distance does not match the segment or the distance
			 * between docker1 and docker2 is 0
			 * 
			 * In this case choose the nearest docker as attaching point.
			 * 
			 */
			if(!distance && !smallestDistance && smallestDistance != 0) {
				(ORYX.Core.Math.getDistancePointToPoint(nodeCenterPoint, lineP1)
					< ORYX.Core.Math.getDistancePointToPoint(nodeCenterPoint, lineP2)) ?
					this.attachedNodePositionData[node.getId()].relativDistanceFromDocker1 = 0 :
					this.attachedNodePositionData[node.getId()].relativDistanceFromDocker1 = 1;
				this.attachedNodePositionData[node.getId()].segment.docker1 = 
													this.dockers[i-1];
				this.attachedNodePositionData[node.getId()].segment.docker2 = 
													this.dockers[i];
			}
		}
		
		/* Calculate position on edge segment for the node */
		if(smallestDistance || smallestDistance == 0) {
			this.attachedNodePositionData[node.getId()].relativDistanceFromDocker1 =
			this.getLineParameterForPosition(
					this.attachedNodePositionData[node.getId()].segment.docker1,
					this.attachedNodePositionData[node.getId()].segment.docker2,
					node);
		}
	},
	
	
	/**
	 *
	 * @param {ORYX.Core.Node|Object} node or position
	 * @return {Object} An object with the following attribute: {ORYX.Core.Docker} fromDocker, {ORYX.Core.Docker} toDocker, {X/Y} position, {int} distance
	 */
 	findSegment: function(node){
		
		var length = this.dockers.length;
		var result;
		
		var nodeCenterPoint = node instanceof ORYX.Core.UIObject ? node.bounds.center() : node;
			
		for (i = 1; i < length; i++) {
			var lineP1 = this.dockers[i - 1].bounds.center();
			var lineP2 = this.dockers[i].bounds.center();
			
			var distance = ORYX.Core.Math.distancePointLinie(lineP1, lineP2, nodeCenterPoint, true);
			
			if (typeof distance == "number" && (result === undefined || distance < result.distance)) {
				result = {
					distance: distance,
					fromDocker: this.dockers[i - 1],
					toDocker: this.dockers[i]
				}
				
			}
		}
		return result;
	},
	
	/**
	 * Returns the value of the scalar to determine the position of the node on 
	 * line defined by docker1 and docker2.
	 * 
	 * @param {point} docker1
	 * 		The docker that defines the start of the line segment
	 * @param {point} docker2
	 * 		The docker that defines the end of the line segment
	 * @param {ORYX.Core.Node} node
	 * 		The concerning node
	 * 
	 * @return {float} positionParameter
	 * 		The scalar value to determine the position on the line
	 */
	getLineParameterForPosition: function(docker1, docker2, node) {
		var dockerPoint1 = docker1.bounds.center();
		var dockerPoint2 = docker2.bounds.center();
		this.relativizePoint(dockerPoint1);
		this.relativizePoint(dockerPoint2);
		
		var intersectionPoint = ORYX.Core.Math.getPointOfIntersectionPointLine(
									dockerPoint1,
									dockerPoint2,
									node.bounds.center(), true);
		if(!intersectionPoint) {
			return 0;
		}
		
		var relativeDistance = 
			ORYX.Core.Math.getDistancePointToPoint(intersectionPoint, dockerPoint1) /
			ORYX.Core.Math.getDistancePointToPoint(dockerPoint1, dockerPoint2);
		
		return relativeDistance;
	},
	/**
	 * Makes point relative to the upper left of the edge's bound.
	 * 
	 * @param {point} point
	 * 		The point to relativize
	 */
	relativizePoint: function(point) {
		point.x -= this.bounds.upperLeft().x;
		point.y -= this.bounds.upperLeft().y;		
	},
	
	/**
	 * Move the first and last docker and calls the refresh method.
	 * Attention: This does not calculates intersection point between the
	 * edge and the bounded nodes. This only works if only the nodes are
	 * moves.
	 *
	 */
	optimizedUpdate: function(){
		
		var updateDocker = function(docker){
			if (!docker._dockedShape || !docker._dockedShapeBounds)
				return;
			var off = {
			    x: docker._dockedShape.bounds.a.x - docker._dockedShapeBounds.a.x,
			    y: docker._dockedShape.bounds.a.y - docker._dockedShapeBounds.a.y
			};
			docker.bounds.moveBy(off);
			docker._dockedShapeBounds.moveBy(off);
		}
		
		updateDocker(this.dockers.first());
		updateDocker(this.dockers.last());
		
		this.refresh();
	},
    
    refresh: function(){
        //call base class refresh method
        arguments.callee.$.refresh.apply(this, arguments);
        
        //TODO consider points for marker mids
        var lastPoint;
        this._paths.each((function(path, index){
            var dockers = this._dockersByPath[path.id];
            var c = undefined;
			var d = undefined;
            if (lastPoint) {
                d = "M" + lastPoint.x + " " + lastPoint.y;
            }
            else {
                c = dockers[0].bounds.center();
                lastPoint = c;
                
                d = "M" + c.x + " " + c.y;
            }
            
            for (var i = 1; i < dockers.length; i++) {
                // for each docker, draw a line to the center
                c = dockers[i].bounds.center();
                d = d + "L" + c.x + " " + c.y + " ";
                lastPoint = c;
            }
            
            path.setAttributeNS(null, "d", d);
            this._interactionPaths[index].setAttributeNS(null, "d", d);
            
        }).bind(this));
		
		
		/* move child shapes of an edge */
		if(this.getChildNodes().length > 0) {
	        var x = this.bounds.upperLeft().x;
	        var y = this.bounds.upperLeft().y;
	        
			this.node.firstChild.childNodes[1].setAttributeNS(null, "transform", "translate(" + x + ", " + y + ")");
		}
		
    },
    
    /**
     * Calculate the Border Intersection Point between two points
     * @param {PointA}
     * @param {PointB}
     */
    getIntersectionPoint: function(){
    
        var length = Math.floor(this.dockers.length / 2)
        
        return ORYX.Core.Math.midPoint(this.dockers[length - 1].bounds.center(), this.dockers[length].bounds.center())
    },
    
	/**
     * Returns TRUE if the bounds is over the edge
     * @param {Bounds}
     *
     */
    isBoundsIncluded: function(bounds){
		var dockers = this.dockers, size = dockers.length;
		return dockers.any(function(docker, i){
			if (i == size-1){ return false; }
			var a = docker.bounds.center();
			var b = dockers[i+1].bounds.center();
			
			return ORYX.Core.Math.isRectOverLine(a.x, a.y, b.x, b.y, bounds.a.x, bounds.a.y, bounds.b.x, bounds.b.y);
		});
	},
    
    /**
     * Calculate if the point is inside the Shape
     * @param {PointX}
     * @param {PointY} 
     */
    isPointIncluded: function(pointX, pointY){
    
        var isbetweenAB = this.absoluteBounds().isIncluded(pointX, pointY, 
												ORYX.CONFIG.OFFSET_EDGE_BOUNDS);
        
		var isPointIncluded = undefined;
		
        if (isbetweenAB && this.dockers.length > 0) {
		
			var i = 0;
			var point1, point2;
			
			
			do {
			
				point1 = this.dockers[i].bounds.center();
				point2 = this.dockers[++i].bounds.center();
				
				isPointIncluded = ORYX.Core.Math.isPointInLine(pointX, pointY, 
											point1.x, point1.y, 
											point2.x, point2.y, 
											ORYX.CONFIG.OFFSET_EDGE_BOUNDS);
				
			} while (!isPointIncluded && i < this.dockers.length - 1)
			
		}
		
		return isPointIncluded;

    },
  
    
    /**
     * Calculate if the point is over an special offset area
     * @param {Point}
     */
    isPointOverOffset: function(){
		return  false
	},
	
	/**
	 * Returns TRUE if the given node
	 * is a child node of the shapes node
	 * @param {Element} node
	 * @return {Boolean}
	 *
	 */
	containsNode: function(node){
		if (this._paths.include(node) || 
       		this._interactionPaths.include(node)){
			return true;		
		}	
		return false;
	},
	
	/**
	* Returns the angle of the line between two dockers
	* (0 - 359.99999999)
	*/
	_getAngle: function(docker1, docker2) {
		var p1 = docker1 instanceof ORYX.Core.Controls.Docker ? docker1.absoluteCenterXY() : docker1;
		var p2 = docker2 instanceof ORYX.Core.Controls.Docker ? docker2.absoluteCenterXY() : docker2;
		
		return ORYX.Core.Math.getAngle(p1, p2);
	},
	    
    alignDockers: function(){
        this._update(true);
        
        var firstPoint = this.dockers.first().bounds.center();
        var lastPoint = this.dockers.last().bounds.center();
        
        var deltaX = lastPoint.x - firstPoint.x;
        var deltaY = lastPoint.y - firstPoint.y;
        
        var numOfDockers = this.dockers.length - 1;
        
        this.dockers.each((function(docker, index){
            var part = index / numOfDockers;
            docker.bounds.unregisterCallback(this._dockerChangedCallback);
            docker.bounds.moveTo(firstPoint.x + part * deltaX, firstPoint.y + part * deltaY);
            docker.bounds.registerCallback(this._dockerChangedCallback);
        }).bind(this));
        
        this._dockerChanged();
    },
    
	add: function(shape){
        arguments.callee.$.add.apply(this, arguments);
		
		// If the new shape is a Docker which is not contained
		if (shape instanceof ORYX.Core.Controls.Docker && this.dockers.include(shape)){
			// Add it to the dockers list ordered by paths		
			var pathArray = this._dockersByPath.values()[0];
			if (pathArray) {
				pathArray.splice(this.dockers.indexOf(shape), 0, shape);
			}
			
			/* Perform nessary adjustments on the edge's child shapes */
			this.handleChildShapesAfterAddDocker(shape);
		}
	},
	
	/**
	 * Performs nessary adjustments on the edge's child shapes.
	 * 
	 * @param {ORYX.Core.Controls.Docker} docker
	 * 		The added docker
	 */
	handleChildShapesAfterAddDocker: function(docker) {
		/* Ensure type of Docker */
		if(!docker instanceof ORYX.Core.Controls.Docker) {return undefined;}
		
		var index = this.dockers.indexOf(docker);
		if(!(0 < index && index < this.dockers.length - 1)) {
		/* Exception: Expect added docker between first and last node of the edge */
			return undefined;
		} 
			
		/* Get child nodes concerning the segment of the new docker */
		var startDocker = this.dockers[index-1];
		var endDocker = this.dockers[index+1];
		
		/* Adjust the position of edge's child nodes */
		var segmentElements = 
			this.getAttachedNodePositionDataForSegment(startDocker, endDocker);
		
		var lengthSegmentPart1 = ORYX.Core.Math.getDistancePointToPoint(
										startDocker.bounds.center(),
										docker.bounds.center());
		var lengthSegmentPart2 = ORYX.Core.Math.getDistancePointToPoint(
										endDocker.bounds.center(),
										docker.bounds.center());
										
		if(!(lengthSegmentPart1 + lengthSegmentPart2)) {return;}
		
		var relativDockerPosition = lengthSegmentPart1 / (lengthSegmentPart1 + lengthSegmentPart2);
			
		segmentElements.each(function(nodePositionData) {
			/* Assign child node to the new segment */
			if(nodePositionData.value.relativDistanceFromDocker1 < relativDockerPosition) {
				/* Case: before added Docker */
				nodePositionData.value.segment.docker2 = docker;
				nodePositionData.value.relativDistanceFromDocker1 = 
					nodePositionData.value.relativDistanceFromDocker1 / relativDockerPosition;
			} else {
				/* Case: after added Docker */
				nodePositionData.value.segment.docker1 = docker;
				var newFullDistance = 1 - relativDockerPosition;
				var relativPartOfSegment = 
							nodePositionData.value.relativDistanceFromDocker1
							- relativDockerPosition;
				
				nodePositionData.value.relativDistanceFromDocker1 = 
										relativPartOfSegment / newFullDistance;
				
			}
		})
		
		
		// Update all labels reference points
		this.getLabels().each(function(label){

			var ref = label.getReferencePoint();
			if (!ref) {
				return;
			}
			var index = this.dockers.indexOf(docker);
			if (index >= ref.segment.fromIndex && index <= ref.segment.toIndex){
				
				var segment = this.findSegment(ref.intersection);
				if (!segment){ 
					// Choose whether the first of the last segment
					segment.fromDocker = ref.segment.fromIndex >= (this.dockers.length/2) ? this.dockers[0] : this.dockers[this.dockers.length-2]; 
					segment.toDocker = this.dockers[this.dockers.indexOf(from)+1]; // The next one if the to docker
				}
				
				var fromPosition = segment.fromDocker.bounds.center(), toPosition = segment.toDocker.bounds.center();
			
				var intersection = ORYX.Core.Math.getPointOfIntersectionPointLine(
										fromPosition, 		// P1 - Center of the first docker
										toPosition, 		// P2 - Center of the second docker
										ref.intersection, 	// P3 - Center of the label
										true);
				//var oldDistance = ORYX.Core.Math.getDistanceBetweenTwoPoints(ref.segment.fromPosition, ref.segment.toPosition, ref.intersection);
				//intersection = ORYX.Core.Math.getPointBetweenTwoPoints(fromPosition, toPosition, isNaN(oldDistance) ? 0.5 : (lengthOld*oldDistance)/lengthNew);
					
				// Update the reference point
				this.updateReferencePointOfLabel(label, intersection, segment.fromDocker, segment.toDocker, true);
			}
		}.bind(this));
		
		/* Update attached nodes visual representation */
		this.refreshAttachedNodes();
	},
	
	/**
	 *	Returns elements from {@link attachedNodePositiondata} that match the
	 *  segement defined by startDocker and endDocker.
	 *  
	 *  @param {ORYX.Core.Controls.Docker} startDocker
	 *  	The docker defining the begin of the segment.
	 *  @param {ORYX.Core.Controls.Docker} endDocker
	 *  	The docker defining the begin of the segment.
	 *  
	 *  @return {Hash} attachedNodePositionData
	 *  	Child elements matching the segment
	 */
	getAttachedNodePositionDataForSegment: function(startDocker, endDocker) {
		/* Ensure that the segment is defined correctly */
		if(!((startDocker instanceof ORYX.Core.Controls.Docker) 
			&& (endDocker instanceof ORYX.Core.Controls.Docker))) {
				return [];
			}
			
		/* Get elements of the segment */
		var elementsOfSegment = 
			this.attachedNodePositionData.findAll(function(nodePositionData) {
				return nodePositionData.value.segment.docker1 === startDocker &&
						nodePositionData.value.segment.docker2 === endDocker;
			});
		
		/* Return a Hash in each case */
		if(!elementsOfSegment) {return [];}
		
		return elementsOfSegment;
	},
	
	/**
	 * Removes an edge's child shape
	 */
	remove: function(shape) {
		arguments.callee.$.remove.apply(this, arguments);
		
		if(this.attachedNodePositionData[shape.getId()]) {
			delete this.attachedNodePositionData[shape.getId()];
		}
		
		/* Adjust child shapes if neccessary */
		if(shape instanceof ORYX.Core.Controls.Docker) {
			this.handleChildShapesAfterRemoveDocker(shape);
		}
	},
	
	updateReferencePointOfLabel: function(label, intersection, from, to, dirty){
		if (!label.getReferencePoint() || !label.isVisible) {
			return;
		}
		
		var ref = label.getReferencePoint();
		
		//
		if (ref.orientation && ref.orientation !== "ce"){
			var angle = this._getAngle(from, to);
			if (ref.distance >= 0){
				if(angle == 0){
					label.horizontalAlign("left");//ref.orientation == "lr" ? "right" : "left");
					label.verticalAlign("bottom");
				} else if (angle > 0 && angle < 90){
					label.horizontalAlign("right");
					label.verticalAlign("bottom");
				} else if (angle == 90){
					label.horizontalAlign("right");
					label.verticalAlign("top");//ref.orientation == "lr" ? "bottom" : "top");
				} else if (angle > 90 && angle < 180){
					label.horizontalAlign("right");
					label.verticalAlign("top");
				} else if (angle == 180){
					label.horizontalAlign("left");//ref.orientation == "ur" ? "right" : "left");
					label.verticalAlign("top");
				} else if (angle > 180 && angle < 270){
					label.horizontalAlign("left");
					label.verticalAlign("top");				
				} else if (angle == 270){
					label.horizontalAlign("left");
					label.verticalAlign("top");//ref.orientation == "ll" ? "bottom" : "top");
				} else if (angle > 270 && angle <= 360){
					label.horizontalAlign("left");
					label.verticalAlign("bottom");
				}
			} else {
				if(angle == 0){
					label.horizontalAlign("left");//ref.orientation == "ur" ? "right" : "left");
					label.verticalAlign("top");
				} else if (angle > 0 && angle < 90){
					label.horizontalAlign("left");
					label.verticalAlign("top");
				} else if (angle == 90){
					label.horizontalAlign("left");
					label.verticalAlign("top");//ref.orientation == "ll" ? "bottom" : "top");
				} else if (angle > 90 && angle < 180){
					label.horizontalAlign("left");
					label.verticalAlign("bottom");
				} else if (angle == 180){
					label.horizontalAlign("left");//ref.orientation == "lr" ? "right" : "left");
					label.verticalAlign("bottom");
				} else if (angle > 180 && angle < 270){
					label.horizontalAlign("right");
					label.verticalAlign("bottom");
				} else if (angle == 270){
					label.horizontalAlign("right");
					label.verticalAlign("top");//ref.orientation == "lr" ? "bottom" : "top");
				} else if (angle > 270 && angle <= 360){
					label.horizontalAlign("right");
					label.verticalAlign("top");
				}			
			}
			ref.iorientation = ref.iorientation || ref.orientation;
			ref.orientation = (label.verticalAlign()=="top"?"u":"l") + (label.horizontalAlign()=="left"?"l":"r");
		}
	
		label.setReferencePoint(Ext.apply({},{
				intersection: intersection,
				segment: {
					from: from,
					fromIndex: this.dockers.indexOf(from),
					fromPosition: from.bounds.center(),
					to: to,
					toIndex: this.dockers.indexOf(to),
					toPosition: to.bounds.center()
				},
				dirty: dirty || false
			},ref))
	},
	/**
	 * 	Adjusts the child shapes of an edges after a docker was removed.
	 * 	
	 *  @param{ORYX.Core.Controls.Docker} docker
	 *  	The removed docker.
	 */
	handleChildShapesAfterRemoveDocker: function(docker) {
		/* Ensure docker type */
		if(!(docker instanceof ORYX.Core.Controls.Docker)) {return;}
		
		this.attachedNodePositionData.each(function(nodePositionData) {
			if(nodePositionData.value.segment.docker1 === docker) {
				/* The new start of the segment is the predecessor of docker2. */
				var index = this.dockers.indexOf(nodePositionData.value.segment.docker2);
				if(index == -1) {return;}
				nodePositionData.value.segment.docker1 = this.dockers[index - 1];
			} 
			else if(nodePositionData.value.segment.docker2 === docker) {
				/* The new end of the segment is the successor of docker1. */
				var index = this.dockers.indexOf(nodePositionData.value.segment.docker1);
				if(index == -1) {return;}
				nodePositionData.value.segment.docker2 = this.dockers[index + 1];
			}
		}.bind(this));
		
		// Update all labels reference points
		this.getLabels().each(function(label){

			var ref = label.getReferencePoint();
			if (!ref) {
				return;
			}
			var from = ref.segment.from;
			var to = ref.segment.to;
			
			if (from !== docker && to !== docker){ 
				return; 
			}
			
			var segment = this.findSegment(ref.intersection);
			if (!segment){ 
				from = segment.fromDocker;
				to = segment.toDocker;
			} else {
				from = from === docker ? this.dockers[this.dockers.indexOf(to)-1] : from;
				to = this.dockers[this.dockers.indexOf(from)+1];
			}

			var intersection = ORYX.Core.Math.getPointOfIntersectionPointLine(from.bounds.center(), to.bounds.center(), ref.intersection, true);			
			// Update the reference point
			this.updateReferencePointOfLabel(label, intersection, from, to, true);
		}.bind(this));
		
		/* Update attached nodes visual representation */
		this.refreshAttachedNodes();
	},
	
	/**
     *@deprecated Use the .createDocker() Method and set the point via the bounds
     */
    addDocker: function(position, exDocker){
        var lastDocker;
		var result;
        this._dockersByPath.any((function(pair){
            return pair.value.any((function(docker, index){
                if (!lastDocker) {
                    lastDocker = docker;
                    return false;
                }
                else {
                    var point1 = lastDocker.bounds.center();
                    var point2 = docker.bounds.center();
                    
                    if (ORYX.Core.Math.isPointInLine(position.x, position.y, point1.x, point1.y, point2.x, point2.y, 10)) {
                        var path = this._paths.find(function(path){
                            return path.id === pair.key;
                        });
                        if (path) {
                            var allowAttr = path.getAttributeNS(NAMESPACE_ORYX, 'allowDockers');
                            if (allowAttr && allowAttr.toLowerCase() === "no") {
                                return true;
                            }
                        }
                        var newDocker = (exDocker) ? exDocker : this.createDocker(this.dockers.indexOf(lastDocker) + 1, position);
						newDocker.bounds.centerMoveTo(position);
                        if(exDocker)
							this.add(newDocker, this.dockers.indexOf(lastDocker) + 1);
                        // Remove new Docker from 'to add' dockers
						//pair.value = pair.value.without(newDocker);
						//pair.value.splice(this.dockers.indexOf(lastDocker) + 1, 0, newDocker);
						// Remove the Docker from the Docker list and add the Docker to the new position
                        //this.dockers = this.dockers.without(newDocker);
                        //this.dockers.splice(this.dockers.indexOf(lastDocker) + 1, 0, newDocker);
                        //this._update(true);
						result = newDocker;
                        return true;
                    }
                    else {
                        lastDocker = docker;
                        return false;
                    }
                }
            }).bind(this));
        }).bind(this));
		return result;
    },
    
    removeDocker: function(docker){
        if (this.dockers.length > 2 && !(this.dockers.first() === docker)) {
            this._dockersByPath.any((function(pair){
                if (pair.value.member(docker)) {
                    if (docker === pair.value.last()) {
                        return true;
                    }
                    else {
                        this.remove(docker);
                        this._dockersByPath[pair.key] = pair.value.without(docker);
                        this.isChanged = true;
                        this._dockerChanged();
                        return true;
                    }
                }
                return false;
            }).bind(this));
        }
    },
	
	/**
	 * Removes all dockers from the edge which are on 
	 * the line between two dockers
	 * @return {Object} Removed dockers in an indicied array 
	 * (key is the removed position of the docker, value is docker themselve)
	 */
	removeUnusedDockers:function(){
		var marked = $H({});
		
		this.dockers.each(function(docker, i){
			if (i==0||i==this.dockers.length-1){ return }
			var previous = this.dockers[i-1];
			
			/* Do not consider already removed dockers */
			if(marked.values().indexOf(previous) != -1 && this.dockers[i-2]) {
				previous = this.dockers[i-2];
			}
			var next = this.dockers[i+1];
			
			var cp = previous.getDockedShape() && previous.referencePoint ? previous.getAbsoluteReferencePoint() : previous.bounds.center();
			var cn = next.getDockedShape() && next.referencePoint ? next.getAbsoluteReferencePoint() : next.bounds.center();
			var cd = docker.bounds.center();
			
			if (ORYX.Core.Math.isPointInLine(cd.x, cd.y, cp.x, cp.y, cn.x, cn.y, 1)){
				marked[i] = docker;
			}
		}.bind(this))
		
		marked.each(function(docker){
			this.removeDocker(docker.value);
		}.bind(this))
		
		if (marked.values().length > 0){
			this._update(true);
		}
		
		return marked;
	},
    
    /**
     * Initializes the Edge after loading the SVG representation of the edge.
     * @param {SVGDocument} svgDocument
     */
    _init: function(svgDocument){
        arguments.callee.$._init.apply(this, arguments);
        
        var minPointX, minPointY, maxPointX, maxPointY;
        
        //init markers
        var defs = svgDocument.getElementsByTagNameNS(NAMESPACE_SVG, "defs");
        if (defs.length > 0) {
            defs = defs[0];
            var markerElements = $A(defs.getElementsByTagNameNS(NAMESPACE_SVG, "marker"));
            var marker;
            var me = this;
            markerElements.each(function(markerElement){
                try {
                    marker = new ORYX.Core.SVG.SVGMarker(markerElement.cloneNode(true));
                    me._markers[marker.id] = marker;
                    var textElements = $A(marker.element.getElementsByTagNameNS(NAMESPACE_SVG, "text"));
                    var label;
                    textElements.each(function(textElement){
                        label = new ORYX.Core.SVG.Label({
                            textElement: textElement,
							shapeId: this.id
                        });
                        me._labels[label.id] = label;
                    });
                } 
                catch (e) {
                }
            });
        }
        
        
        var gs = svgDocument.getElementsByTagNameNS(NAMESPACE_SVG, "g");
        if (gs.length <= 0) {
            throw "Edge: No g element found.";
        }
        var g = gs[0];
        
        
        g.setAttributeNS(null, "id", null);
        
        var isFirst = true;
        
        $A(g.childNodes).each((function(path, index){
            if (ORYX.Editor.checkClassType(path, SVGPathElement)) {
                path = path.cloneNode(false);
                
                var pathId = this.id + "_" + index;
                path.setAttributeNS(null, "id", pathId);
                this._paths.push(path);
                
                //check, if markers are set and update the id
                var markersByThisPath = [];
                var markerUrl = path.getAttributeNS(null, "marker-start");
                
                if (markerUrl && markerUrl !== "") {
                    markerUrl = markerUrl.strip();
                    markerUrl = markerUrl.replace(/^url\(#/, '');
                    var markerStartId = this.id.concat(markerUrl.replace(/\)$/, ''));
                    path.setAttributeNS(null, "marker-start", "url(#" + markerStartId + ")");
                    
                    markersByThisPath.push(this._markers[markerStartId]);
                }
                
                markerUrl = path.getAttributeNS(null, "marker-mid");
                
                if (markerUrl && markerUrl !== "") {
                    markerUrl = markerUrl.strip();
                    markerUrl = markerUrl.replace(/^url\(#/, '');
                    var markerMidId = this.id.concat(markerUrl.replace(/\)$/, ''));
                    path.setAttributeNS(null, "marker-mid", "url(#" + markerMidId + ")");
                    
                    markersByThisPath.push(this._markers[markerMidId]);
                }
                
                markerUrl = path.getAttributeNS(null, "marker-end");
                
                if (markerUrl && markerUrl !== "") {
                    markerUrl = markerUrl.strip();
                    markerUrl = markerUrl.replace(/^url\(#/, '');
                    var markerEndId = this.id.concat(markerUrl.replace(/\)$/, ''));
                    path.setAttributeNS(null, "marker-end", "url(#" + markerEndId + ")");
                    
                    markersByThisPath.push(this._markers[markerEndId]);
                }
                
                this._markersByPath[pathId] = markersByThisPath;
                
                //init dockers
                var parser = new PathParser();
                var handler = new ORYX.Core.SVG.PointsPathHandler();
                parser.setHandler(handler);
                parser.parsePath(path);
                
                if (handler.points.length < 4) {
                    throw "Edge: Path has to have two or more points specified.";
                }
                
                this._dockersByPath[pathId] = [];
                
				for (var i = 0; i < handler.points.length; i += 2) {
					//handler.points.each((function(point, pIndex){
					var x = handler.points[i];
					var y = handler.points[i+1];
					if (isFirst || i > 0) {
						var docker = new ORYX.Core.Controls.Docker({
							eventHandlerCallback: this.eventHandlerCallback
						});
						docker.bounds.centerMoveTo(x,y);
						docker.bounds.registerCallback(this._dockerChangedCallback);
						this.add(docker, this.dockers.length);
						
						//this._dockersByPath[pathId].push(docker);
						
						//calculate minPoint and maxPoint
						if (minPointX) {
							minPointX = Math.min(x, minPointX);
							minPointY = Math.min(y, minPointY);
						}
						else {
							minPointX = x;
							minPointY = y;
						}
						
						if (maxPointX) {
							maxPointX = Math.max(x, maxPointX);
							maxPointY = Math.max(y, maxPointY);
						}
						else {
							maxPointX = x;
							maxPointY = y;
						}
					}
					//}).bind(this));
				}
                isFirst = false;
            }
        }).bind(this));
        
        this.bounds.set(minPointX, minPointY, maxPointX, maxPointY);
        
        if (false&&(this.bounds.width() === 0 || this.bounds.height() === 0)) {
			var width = this.bounds.width();
			var height = this.bounds.height();
			
            this.bounds.extend({
                x: width === 0 ? 2 : 0,
                y: height === 0 ? 2 : 0
            });
            
            this.bounds.moveBy({
                x: width === 0 ? -1 : 0,
                y: height === 0 ? -1 : 0
            });
            
        }
        
        this._oldBounds = this.bounds.clone();
        
        //add paths to this.node
        this._paths.reverse();
        var paths = [];
        this._paths.each((function(path){
            paths.push(this.node.childNodes[0].childNodes[0].childNodes[0].appendChild(path));
        }).bind(this));
        
        this._paths = paths;
        
        //init interaction path
        this._paths.each((function(path){
            var iPath = path.cloneNode(false);
			iPath.setAttributeNS(null, "id", undefined);
            iPath.setAttributeNS(null, "stroke-width", 10);
            iPath.setAttributeNS(null, "visibility", "hidden");
            iPath.setAttributeNS(null, "stroke-dasharray", null);
            iPath.setAttributeNS(null, "stroke", "black");
            iPath.setAttributeNS(null, "fill", "none");
			iPath.setAttributeNS(null, "title", this.getStencil().title());
            this._interactionPaths.push(this.node.childNodes[0].childNodes[0].childNodes[0].appendChild(iPath));
        }).bind(this));
        
        this._paths.reverse();
        this._interactionPaths.reverse();
		
		/**initialize labels*/
        var textElems = svgDocument.getElementsByTagNameNS(ORYX.CONFIG.NAMESPACE_SVG, 'text');
        
		$A(textElems).each((function(textElem){
            var label = new ORYX.Core.SVG.Label({
                textElement: textElem,
				shapeId: this.id
            });
            this.node.childNodes[0].childNodes[0].appendChild(label.node);
            this._labels[label.id] = label;
			
			label.registerOnChange(this.layout.bind(this));
        }).bind(this)); 
		
        
        this.propertiesChanged.each(function(pair){
            pair.value = true;
        });
		
        //this._update(true);
    },
    
    /**
     * Adds all necessary markers of this Edge to the SVG document.
     * Has to be called, while this.node is part of DOM.
     */
    addMarkers: function(defs){
        this._markers.each(function(marker){
            if (!defs.ownerDocument.getElementById(marker.value.id)) {
                marker.value.element = defs.appendChild(marker.value.element);
            }
        });
    },
    
    /**
     * Removes all necessary markers of this Edge from the SVG document.
     * Has to be called, while this.node is part of DOM.
     */
    removeMarkers: function(){
        var svgElement = this.node.ownerSVGElement;
        if (svgElement) {
            var defs = svgElement.getElementsByTagNameNS(NAMESPACE_SVG, "defs");
            if (defs.length > 0) {
                defs = defs[0];
                this._markers.each(function(marker){
                    var foundMarker = defs.ownerDocument.getElementById(marker.value.id);
                    if (foundMarker) {
                        marker.value.element = defs.removeChild(marker.value.element);
                    }
                });
            }
        }
    },
    
    /**
     * Calls when a docker has changed
     */
    _dockerChanged: function(){
    
        //this._update(true);
		this._dockerUpdated = true;
        
    },
    
    serialize: function(){
        var result = arguments.callee.$.serialize.apply(this);
        
        //add dockers triple
        var value = "";
        this._dockersByPath.each((function(pair){
            pair.value.each(function(docker){
                var position = docker.getDockedShape() && docker.referencePoint ? docker.referencePoint : docker.bounds.center();
                value = value.concat(position.x + " " + position.y + " ");
            });
            
            value += " # ";
        }).bind(this));
        result.push({
            name: 'dockers',
            prefix: 'oryx',
            value: value,
            type: 'literal'
        });
        
        //add parent triple dependant on the dockedShapes
        //TODO change this when canvas becomes a resource
/*        var source = this.dockers.first().getDockedShape();
        var target = this.dockers.last().getDockedShape();
        var sharedParent;
        if (source && target) {
            //get shared parent
            while (source.parent) {
                source = source.parent;
                if (source instanceof ORYX.Core.Canvas) {
                    sharedParent = source;
                    break;
                }
                else {
                    var targetParent = target.parent;
                    var found;
                    while (targetParent) {
                        if (source === targetParent) {
                            sharedParent = source;
                            found = true;
                            break;
                        }
                        else {
                            targetParent = targetParent.parent;
                        }
                    }
                    if (found) {
                        break;
                    }
                }
            }
        }
        else 
            if (source) {
                sharedParent = source.parent;
            }
            else 
                if (target) {
                    sharedParent = target.parent;
                }
*/        
        //if (sharedParent) {
/*            result.push({
                name: 'parent',
                prefix: 'raziel',
                //value: '#' + ERDF.__stripHashes(sharedParent.resourceId),
                value: '#' + ERDF.__stripHashes(this.getCanvas().resourceId),
                type: 'resource'
            });*/
        //}
		
		//serialize target and source
		var lastDocker = this.dockers.last();
		
		var target = lastDocker.getDockedShape();
		
		if(target) {
			result.push({
				name: 'target',
				prefix: 'raziel',
				value: '#' + ERDF.__stripHashes(target.resourceId),
				type: 'resource'
			});
		}
        
        try {
            //result = this.getStencil().serialize(this, result);
			var serializeEvent = this.getStencil().serialize();
			
			/*
			 * call serialize callback by reference, result should be found
			 * in serializeEvent.result
			 */
			if(serializeEvent.type) {
				serializeEvent.shape = this;
				serializeEvent.data = result;
				serializeEvent.result = undefined;
				serializeEvent.forceExecution = true;
				
				this._delegateEvent(serializeEvent);
				
				if(serializeEvent.result) {
					result = serializeEvent.result;
				}
			}
        } 
        catch (e) {
        }
        return result;
    },
    
    deserialize: function(data){
        try {
            //data = this.getStencil().deserialize(this, data);
			
			var deserializeEvent = this.getStencil().deserialize();
			
			/*
			 * call serialize callback by reference, result should be found
			 * in serializeEventInfo.result
			 */
			if(deserializeEvent.type) {
				deserializeEvent.shape = this;
				deserializeEvent.data = data;
				deserializeEvent.result = undefined;
				deserializeEvent.forceExecution = true;
				
				this._delegateEvent(deserializeEvent);
				if(deserializeEvent.result) {
					data = deserializeEvent.result;
				}
			}
        } 
        catch (e) {
        }
        
		// Set the outgoing shapes
		var target = data.find(function(ser) {return (ser.prefix+"-"+ser.name) == 'raziel-target'});
		var targetShape;
		if(target) {
			targetShape = this.getCanvas().getChildShapeByResourceId(target.value);
		}
		
		var outgoing = data.findAll(function(ser){ return (ser.prefix+"-"+ser.name) == 'raziel-outgoing'});
		outgoing.each((function(obj){
			// TODO: Look at Canvas
			if(!this.parent) {return};
								
			// Set outgoing Shape
			var next = this.getCanvas().getChildShapeByResourceId(obj.value);
															
			if(next){
				if(next == targetShape) {
					// If this is an edge, set the last docker to the next shape
					this.dockers.last().setDockedShape(next);
					this.dockers.last().setReferencePoint({x: next.bounds.width() / 2.0, y: next.bounds.height() / 2.0});
				} else if(next instanceof ORYX.Core.Edge) {
					//Set the first docker of the next shape
					next.dockers.first().setDockedShape(this);
					//next.dockers.first().setReferencePoint({x: this.bounds.width() / 2.0, y: this.bounds.height() / 2.0});
				} /*else if(next.dockers.length > 0) { //next is a node and next has a docker
					next.dockers.first().setDockedShape(this);
					next.dockers.first().setReferencePoint({x: this.bounds.width() / 2.0, y: this.bounds.height() / 2.0});
				}*/
			}	
			
		}).bind(this));
		
        
        var oryxDockers = data.find(function(obj){
            return (obj.prefix === "oryx" &&
            obj.name === "dockers");
        });
		
        if (oryxDockers) {
            var dataByPath = oryxDockers.value.split("#").without("").without(" ");
            
            dataByPath.each((function(data, index){
                var values = data.replace(/,/g, " ").split(" ").without("");
                
                //for each docker two values must be defined
                if (values.length % 2 === 0) {
                    var path = this._paths[index];
                    
                    if (path) {
                        if (index === 0) {
                            while (this._dockersByPath[path.id].length > 2) {
                                this.removeDocker(this._dockersByPath[path.id][1]);
                            }
                        }
                        else {
                            while (this._dockersByPath[path.id].length > 1) {
                                this.removeDocker(this._dockersByPath[path.id][0]);
                            }
                        }
                        
                        var dockersByPath = this._dockersByPath[path.id];
                        
                        if (index === 0) {
                            //set position of first docker
                            var x = parseFloat(values.shift());
                            var y = parseFloat(values.shift());
                            
                            if (dockersByPath.first().getDockedShape()) {
                                dockersByPath.first().setReferencePoint({
                                    x: x,
                                    y: y
                                });
                            }
                            else {
                                dockersByPath.first().bounds.centerMoveTo(x, y);
                            }
                        }
                        
                        //set position of last docker
                        y = parseFloat(values.pop());
                        x = parseFloat(values.pop());
                        
                        if (dockersByPath.last().getDockedShape()) {
                            dockersByPath.last().setReferencePoint({
                                x: x,
                                y: y
                            });
                        } else {
                            dockersByPath.last().bounds.centerMoveTo(x, y);
                        }
                        
                        //add additional dockers
                        for (var i = 0; i < values.length; i++) {
                            x = parseFloat(values[i]);
                            y = parseFloat(values[++i]);
                            
                            var newDocker = this.createDocker();
                            newDocker.bounds.centerMoveTo(x, y);
                            
                            //this.dockers = this.dockers.without(newDocker);
                            //this.dockers.splice(this.dockers.indexOf(dockersByPath.last()), 0, newDocker);
                            //dockersByPath.splice(this.dockers.indexOf(dockersByPath.last()), 0, newDocker);
						}
                    }
                }
            }).bind(this));
        } else {
            this.alignDockers();
        }
		
        arguments.callee.$.deserialize.apply(this, arguments);
		
		this._changed();
    },
    
    toString: function(){
        return this.getStencil().title() + " " + this.id;
    },
    
    /**
     * @return {ORYX.Core.Shape} Returns last docked shape or null.
     */
    getTarget: function(){
        return this.dockers.last() ? this.dockers.last().getDockedShape() : null;
    },
	
	/**
	 * @return {ORYX.Core.Shape} Returns the first docked shape or null
	 */
	getSource: function() {
		return this.dockers.first() ? this.dockers.first().getDockedShape() : null;
	},
	
	/**
	 * Checks whether the edge is at least docked to one shape.
	 * 
	 * @return {boolean} True if edge is docked
	 */
	isDocked: function() {
		var isDocked = false;
		this.dockers.each(function(docker) {
			if(docker.isDocked()) {
				isDocked = true;
				throw $break;
			}
		});
		return isDocked;
	},
    
    /**
     * Calls {@link ORYX.Core.AbstractShape#toJSON} and add a some stencil set information.
     */
    toJSON: function() {
        var json = arguments.callee.$.toJSON.apply(this, arguments);
        
        if(this.getTarget()) {
            json.target = {
                resourceId: this.getTarget().resourceId
            };
        }
        
        return json;
    }
};
ORYX.Core.Edge = ORYX.Core.Shape.extend(ORYX.Core.Edge);
/**
 * Copyright (c) 2009
 * Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if(!ORYX){ var ORYX = {} }
if(!ORYX.Plugins){ ORYX.Plugins = {} }

/**
   This abstract plugin class can be used to build plugins on.
   It provides some more basic functionality like registering events (on*-handlers)...
   @example
    ORYX.Plugins.MyPlugin = ORYX.Plugins.AbstractPlugin.extend({
        construct: function() {
            // Call super class constructor
            arguments.callee.$.construct.apply(this, arguments);
            
            [...]
        },
        [...]
    });
   
   @class ORYX.Plugins.AbstractPlugin
   @constructor Creates a new instance
   @author Willi Tscheschner
*/
ORYX.Plugins.AbstractPlugin = Clazz.extend({
    /** 
     * The facade which offer editor-specific functionality
     * @type Facade
     * @memberOf ORYX.Plugins.AbstractPlugin.prototype
     */
	facade: null,
	
	construct: function( facade ){
		this.facade = facade;
		
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_LOADED, this.onLoaded.bind(this));
	},
        
    /**
       Overwrite to handle load event. TODO: Document params!!!
       @methodOf ORYX.Plugins.AbstractPlugin.prototype
    */
	onLoaded: function(){},
	
    /**
       Overwrite to handle selection changed event. TODO: Document params!!!
       @methodOf ORYX.Plugins.AbstractPlugin.prototype
    */
	onSelectionChanged: function(){},
	
    /**
       Show overlay on given shape.
       @methodOf ORYX.Plugins.AbstractPlugin.prototype
       @example
       showOverlay(
           myShape,
           { stroke: "green" },
           ORYX.Editor.graft("http://www.w3.org/2000/svg", null, ['path', {
               "title": "Click the element to execute it!",
               "stroke-width": 2.0,
               "stroke": "black",
               "d": "M0,-5 L5,0 L0,5 Z",
               "line-captions": "round"
           }])
       )
       @param {Oryx.XXX.Shape[]} shapes One shape or array of shapes the overlay should be put on
       @param {Oryx.XXX.Attributes} attributes some attributes...
       @param {Oryx.svg.node} svgNode The svg node which should be used as overlay
       @param {String} [svgNode="NW"] The svg node position where the overlay should be placed
    */
	showOverlay: function(shapes, attributes, svgNode, svgNodePosition ){
		
		if( !(shapes instanceof Array) ){
			shapes = [shapes]
		}
		
		// Define Shapes
		shapes = shapes.map(function(shape){
			var el = shape;
			if( typeof shape == "string" ){
				el = this.facade.getCanvas().getChildShapeByResourceId( shape );
				el = el || this.facade.getCanvas().getChildById( shape, true );
			}
			return el;
		}.bind(this)).compact();
		
		// Define unified id
		if( !this.overlayID ){
			this.overlayID = this.type + ORYX.Editor.provideId();
		}
		
		this.facade.raiseEvent({
			type		: ORYX.CONFIG.EVENT_OVERLAY_SHOW,
			id			: this.overlayID,
			shapes		: shapes,
			attributes 	: attributes,
			node		: svgNode,
			nodePosition: svgNodePosition || "NW"
		});
		
	},
	
    /**
       Hide current overlay.
       @methodOf ORYX.Plugins.AbstractPlugin.prototype
    */
	hideOverlay: function(){
		this.facade.raiseEvent({
			type	: ORYX.CONFIG.EVENT_OVERLAY_HIDE,
			id		: this.overlayID
		});		
	},
	
    /**
       Does a transformation with the given xslt stylesheet.
       @methodOf ORYX.Plugins.AbstractPlugin.prototype
       @param {String} data The data (e.g. eRDF) which should be transformed
       @param {String} stylesheet URL of a stylesheet which should be used for transforming data.
    */
	doTransform: function( data, stylesheet ) {		
		
		if( !stylesheet || !data ){
			return ""
		}

        var parser 		= new DOMParser();
        var parsedData 	= parser.parseFromString(data, "text/xml");
		source=stylesheet;
		new Ajax.Request(source, {
			asynchronous: false,
			method: 'get',
			onSuccess: function(transport){
				xsl = transport.responseText
			}.bind(this),
			onFailure: (function(transport){
				ORYX.Log.error("XSL load failed" + transport);
			}).bind(this)
		});
        var xsltProcessor = new XSLTProcessor();
		var domParser = new DOMParser();
		var xslObject = domParser.parseFromString(xsl, "text/xml");
        xsltProcessor.importStylesheet(xslObject);
        
        try {
        	
            var newData 		= xsltProcessor.transformToFragment(parsedData, document);
            var serializedData 	= (new XMLSerializer()).serializeToString(newData);
            
           	/* Firefox 2 to 3 problem?! */
            serializedData = !serializedData.startsWith("<?xml") ? "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" + serializedData : serializedData;
            
            return serializedData;
            
        }catch (error) {
            return -1;
        }
        
	},
	
	/**
	 * Opens a new window that shows the given XML content.
	 * @methodOf ORYX.Plugins.AbstractPlugin.prototype
	 * @param {Object} content The XML content to be shown.
	 * @example
	 * openDownloadWindow( "my.xml", "<exampleXML />" );
	 */
	openXMLWindow: function(content) {
		var win = window.open(
		   'data:application/xml,' + encodeURIComponent(
		     content
		   ),
		   '_blank', "resizable=yes,width=600,height=600,toolbar=0,scrollbars=yes"
		);
	},
	
    /**
     * Opens a download window for downloading the given content.
     * @methodOf ORYX.Plugins.AbstractPlugin.prototype
     * @param {String} filename The content's file name
     * @param {String} content The content to download
     */
	openDownloadWindow: function(filename, content) {
		var win = window.open("");
		if (win != null) {
			win.document.open();
			win.document.write("<html><body>");
			var submitForm = win.document.createElement("form");
			win.document.body.appendChild(submitForm);
			
			var createHiddenElement = function(name, value) {
				var newElement = document.createElement("input");
				newElement.name=name;
				newElement.type="hidden";
				newElement.value = value;
				return newElement
			}
			
			submitForm.appendChild( createHiddenElement("download", content) );
			submitForm.appendChild( createHiddenElement("file", filename) );
			
			
			submitForm.method = "POST";
			win.document.write("</body></html>");
			win.document.close();
			submitForm.action= ORYX.PATH + "/download";
			submitForm.submit();
		}		
	},
    
    /**
     * Serializes DOM.
     * @methodOf ORYX.Plugins.AbstractPlugin.prototype
     * @type {String} Serialized DOM
     */
    getSerializedDOM: function(){
        // Force to set all resource IDs
        var serializedDOM = DataManager.serializeDOM( this.facade );

        //add namespaces
        serializedDOM = '<?xml version="1.0" encoding="utf-8"?>' +
        '<html xmlns="http://www.w3.org/1999/xhtml" ' +
        'xmlns:b3mn="http://b3mn.org/2007/b3mn" ' +
        'xmlns:ext="http://b3mn.org/2007/ext" ' +
        'xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" ' +
        'xmlns:atom="http://b3mn.org/2007/atom+xhtml">' +
        '<head profile="http://purl.org/NET/erdf/profile">' +
        '<link rel="schema.dc" href="http://purl.org/dc/elements/1.1/" />' +
        '<link rel="schema.dcTerms" href="http://purl.org/dc/terms/ " />' +
        '<link rel="schema.b3mn" href="http://b3mn.org" />' +
        '<link rel="schema.oryx" href="http://oryx-editor.org/" />' +
        '<link rel="schema.raziel" href="http://raziel.org/" />' +
        '<base href="' +
        location.href.split("?")[0] +
        '" />' +
        '</head><body>' +
        serializedDOM +
        '</body></html>';
        
        return serializedDOM;
    },
    
    /**
     * Sets the editor in read only mode: Edges/ dockers cannot be moved anymore,
     * shapes cannot be selected anymore.
     * @methodOf ORYX.Plugins.AbstractPlugin.prototype
     */
    enableReadOnlyMode: function(){
        //Edges cannot be moved anymore
        this.facade.disableEvent(ORYX.CONFIG.EVENT_MOUSEDOWN);
        
        // Stop the user from editing the diagram while the plugin is active
        this._stopSelectionChange = function(){
            if(this.facade.getSelection().length > 0) {
                this.facade.setSelection([]);
            }
        };
        this.facade.registerOnEvent(ORYX.CONFIG.EVENT_SELECTION_CHANGED, this._stopSelectionChange.bind(this));
    },
    /**
     * Disables read only mode, see @see
     * @methodOf ORYX.Plugins.AbstractPlugin.prototype
     * @see ORYX.Plugins.AbstractPlugin.prototype.enableReadOnlyMode
     */
    disableReadOnlyMode: function(){
        // Edges can be moved now again
        this.facade.enableEvent(ORYX.CONFIG.EVENT_MOUSEDOWN);
        
        if (this._stopSelectionChange) {
            this.facade.unregisterOnEvent(ORYX.CONFIG.EVENT_SELECTION_CHANGED, this._stopSelectionChange.bind(this));
            this._stopSelectionChange = undefined;
        }
    },
    
    /**
     * Extracts RDF from DOM.
     * @methodOf ORYX.Plugins.AbstractPlugin.prototype
     * @type {String} Extracted RFD. Null if there are transformation errors.
     */
    getRDFFromDOM: function(){
        //convert to RDF
		try {
			var xsl = "";
			source=ORYX.PATH + "lib/extract-rdf.xsl";
			new Ajax.Request(source, {
				asynchronous: false,
				method: 'get',
				onSuccess: function(transport){
					xsl = transport.responseText
				}.bind(this),
				onFailure: (function(transport){
					ORYX.Log.error("XSL load failed" + transport);
				}).bind(this)
			});
			/*
			 var parser = new DOMParser();
			 var parsedDOM = parser.parseFromString(this.getSerializedDOM(), "text/xml");
			 var xsltPath = ORYX.PATH + "lib/extract-rdf.xsl";
			 var xsltProcessor = new XSLTProcessor();
			 var xslRef = document.implementation.createDocument("", "", null);
			 xslRef.async = false;
			 xslRef.load(xsltPath);
			 xsltProcessor.importStylesheet(xslRef);
			 try {
			 var rdf = xsltProcessor.transformToDocument(parsedDOM);
			 return (new XMLSerializer()).serializeToString(rdf);
			 } catch (error) {
			 Ext.Msg.alert("Oryx", error);
			 return null;
			 }*/
			var domParser = new DOMParser();
			var xmlObject = domParser.parseFromString(this.getSerializedDOM(), "text/xml");
			var xslObject = domParser.parseFromString(xsl, "text/xml");
			var xsltProcessor = new XSLTProcessor();
			xsltProcessor.importStylesheet(xslObject);
			var result = xsltProcessor.transformToFragment(xmlObject, document);
			
			var serializer = new XMLSerializer();
			
			return serializer.serializeToString(result);
		}catch(e){
			Ext.Msg.alert("Oryx", error);
			return "";
		}

		
    },
    
    /**
	 * Checks if a certain stencil set is loaded right now.
	 * 
	 */
	isStencilSetExtensionLoaded: function(stencilSetExtensionNamespace) {
		return this.facade.getStencilSets().values().any(
			function(ss){ 
				return ss.extensions().keys().any(
					function(extensionKey) {
						return extensionKey == stencilSetExtensionNamespace;
					}.bind(this)
				);
			}.bind(this)
		);
	},
	
	/**
	 * Raises an event so that registered layouters does
	 * have the posiblility to layout the given shapes 
	 * For further reading, have a look into the AbstractLayouter
	 * class
	 * @param {Object} shapes
	 */
	doLayout: function(shapes){
		// Raises a do layout event
		this.facade.raiseEvent({
			type		: ORYX.CONFIG.EVENT_LAYOUT,
			shapes		: shapes
		});
	},
	
	
	/**
	 * Does a primitive layouting with the incoming/outgoing 
	 * edges (set the dockers to the right position) and if 
	 * necessary, it will be called the real layouting 
	 * @param {ORYX.Core.Node} node
	 * @param {Array} edges
	 */
	layoutEdges : function(node, allEdges, offset){		

		if (!this.facade.isExecutingCommands()){ return }		

		var Command = ORYX.Core.Command.extend({
			construct: function(edges, node, offset, plugin){
				this.edges = edges;
				this.node = node;
				this.plugin = plugin;
				this.offset = offset;
				
				// Get the new absolute center
				var center = node.absoluteXY();
				this.ulo = {x: center.x - offset.x, y:center.y - offset.y};
				
				
			},
			execute: function(){
				
				if (this.changes){
					this.executeAgain();
					return;
				} else {
					this.changes = [];
					this.edges.each(function(edge){
						this.changes.push({
							edge: edge,
							oldDockerPositions: edge.dockers.map(function(r){ return r.bounds.center() })
						})
					}.bind(this));
				}
				
				// Find all edges, which are related to the node and
				// have more than two dockers
				this.edges
					// Find all edges with more than two dockers
					.findAll(function(r){ return r.dockers.length > 2 }.bind(this))
					// For every edge, check second and one before last docker
					// if there are horizontal/vertical on the same level
					// and if so, align the the bounds 
					.each(function(edge){
						if (edge.dockers.first().getDockedShape() === this.node){
							var second = edge.dockers[1];
							if (this.align(second.bounds, edge.dockers.first())){ second.update(); }
						} else if (edge.dockers.last().getDockedShape() === this.node) {
							var beforeLast = edge.dockers[edge.dockers.length-2];
							if (this.align(beforeLast.bounds, edge.dockers.last())){ beforeLast.update(); }									
						}
						edge._update(true);
						edge.removeUnusedDockers();
						if (this.isBendPointIncluded(edge)){
							this.plugin.doLayout(edge);
							return;
						}
					}.bind(this));
				
				
				// Find all edges, which have only to dockers 
				// and is located horizontal/vertical.
				// Do layout with those edges
				this.edges
					// Find all edges with exactly two dockers
					.each(function(edge){
						if (edge.dockers.length == 2){
							var p1 = edge.dockers.first().getAbsoluteReferencePoint() || edge.dockers.first().bounds.center();
							var p2 = edge.dockers.last().getAbsoluteReferencePoint() || edge.dockers.first().bounds.center();
							// Find all horizontal/vertical edges
							if (Math.abs(-Math.abs(p1.x - p2.x) + Math.abs(this.offset.x)) < 2 || Math.abs(-Math.abs(p1.y - p2.y) + Math.abs(this.offset.y)) < 2){
								this.plugin.doLayout(edge);
							}
						}
					}.bind(this));
		
				this.edges.each(function(edge, i){
					this.changes[i].dockerPositions = edge.dockers.map(function(r){ return r.bounds.center() });
				}.bind(this));
				
			},
			/**
			 * Align the bounds if the center is 
			 * the same than the old center
			 * @params {Object} bounds
			 * @params {Object} bounds2
			 */
			align: function(bounds, refDocker){
				
				var abRef = refDocker.getAbsoluteReferencePoint() || refDocker.bounds.center();
				
				var xdif = bounds.center().x-abRef.x;
				var ydif = bounds.center().y-abRef.y;
				if (Math.abs(-Math.abs(xdif) + Math.abs(this.offset.x)) < 3 && this.offset.xs === undefined){
					bounds.moveBy({x:-xdif, y:0})
				}
				if (Math.abs(-Math.abs(ydif) + Math.abs(this.offset.y)) < 3 && this.offset.ys === undefined){
					bounds.moveBy({y:-ydif, x:0})
				}
				
				if (this.offset.xs !== undefined || this.offset.ys !== undefined){
					var absPXY = refDocker.getDockedShape().absoluteXY();
					xdif = bounds.center().x-(absPXY.x+((abRef.x-absPXY.x)/this.offset.xs));
					ydif = bounds.center().y-(absPXY.y+((abRef.y-absPXY.y)/this.offset.ys));
					
					if (Math.abs(-Math.abs(xdif) + Math.abs(this.offset.x)) < 3){
						bounds.moveBy({x:-(bounds.center().x-abRef.x), y:0})
					}
					
					if (Math.abs(-Math.abs(ydif) + Math.abs(this.offset.y)) < 3){
						bounds.moveBy({y:-(bounds.center().y-abRef.y), x:0})
					}
				}
			},
			
			/**						
			 * Returns a TRUE if there are bend point which overlay the shape
			 */
			isBendPointIncluded: function(edge){
				// Get absolute bounds
				var ab = edge.dockers.first().getDockedShape();
				var bb = edge.dockers.last().getDockedShape();
				
				if (ab) {
					ab = ab.absoluteBounds();
					ab.widen(5);
				}
				
				if (bb) {
					bb = bb.absoluteBounds();
					bb.widen(20); // Wide with 20 because of the arrow from the edge
				}
				
				return edge.dockers
						.any(function(docker, i){ 
							var c = docker.bounds.center();
									// Dont count first and last
							return 	i != 0 && i != edge.dockers.length-1 && 
									// Check if the point is included to the absolute bounds
									((ab && ab.isIncluded(c)) || (bb && bb.isIncluded(c)))
						})
			},
			
			removeAllDocker: function(edge){
				edge.dockers.slice(1, edge.dockers.length-1).each(function(docker){
					edge.removeDocker(docker);
				})
			},
			executeAgain: function(){
				this.changes.each(function(change){
					// Reset the dockers
					this.removeAllDocker(change.edge);
					change.dockerPositions.each(function(pos, i){	
						if (i==0||i==change.dockerPositions.length-1){ return }					
						var docker = change.edge.createDocker(undefined, pos);
						docker.bounds.centerMoveTo(pos);
						docker.update();
					}.bind(this));
					change.edge._update(true);
				}.bind(this));
			},
			rollback: function(){					
				this.changes.each(function(change){
					// Reset the dockers
					this.removeAllDocker(change.edge);
					change.oldDockerPositions.each(function(pos, i){	
						if (i==0||i==change.oldDockerPositions.length-1){ return }					
						var docker = change.edge.createDocker(undefined, pos);
						docker.bounds.centerMoveTo(pos);
						docker.update();
					}.bind(this));
					change.edge._update(true);
				}.bind(this));
			}
		});
		
		this.facade.executeCommands([new Command(allEdges, node, offset, this)]);

	}
});/**
 * Copyright (c) 2009
 * Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if(!ORYX){ var ORYX = {} }
if(!ORYX.Plugins){ ORYX.Plugins = {} }

/**
   This abstract plugin implements the core behaviour of layout
   
   @class ORYX.Plugins.AbstractLayouter
   @constructor Creates a new instance
   @author Willi Tscheschner
*/
ORYX.Plugins.AbstractLayouter = ORYX.Plugins.AbstractPlugin.extend({
	
	/**
	 * 'layouted' defined all types of shapes which will be layouted. 
	 * It can be one value or an array of values. The value
	 * can be a Stencil ID (as String) or an class type of either 
	 * a ORYX.Core.Node or ORYX.Core.Edge
     * @type Array|String|Object
     * @memberOf ORYX.Plugins.AbstractLayouter.prototype
	 */
	layouted : [],
	
	/**
	 * Constructor
	 * @param {Object} facade
	 * @memberOf ORYX.Plugins.AbstractLayouter.prototype
	 */
	construct: function( facade ){
		arguments.callee.$.construct.apply(this, arguments);
			
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_LAYOUT, this._initLayout.bind(this));
	},
	
	/**
	 * Proofs if this shape should be layouted or not
	 * @param {Object} shape
     * @memberOf ORYX.Plugins.AbstractLayouter.prototype
	 */
	isIncludedInLayout: function(shape){
		if (!(this.layouted instanceof Array)){
			this.layouted = [this.layouted].compact();
		}
		
		// If there are no elements
		if (this.layouted.length <= 0) {
			// Return TRUE
			return true;
		}
		
		// Return TRUE if there is any correlation between 
		// the 'layouted' attribute and the shape themselve.
		return this.layouted.any(function(s){
			if (typeof s == "string") {
				return shape.getStencil().id().include(s);
			} else {
				return shape instanceof s;
			}
		})
	},
	
	/**
	 * Callback to start the layouting
	 * @param {Object} event Layout event
	 * @param {Object} shapes Given shapes
     * @memberOf ORYX.Plugins.AbstractLayouter.prototype
	 */
	_initLayout: function(event){
		
		// Get the shapes
		var shapes = [event.shapes].flatten().compact();
		
		// Find all shapes which should be layouted
		var toLayout = shapes.findAll(function(shape){
			return this.isIncludedInLayout(shape) 
		}.bind(this))
		
		// If there are shapes left 
		if (toLayout.length > 0){
			// Do layout
			this.layout(toLayout);
		}
	},
	
	/**
	 * Implementation of layouting a set on shapes
	 * @param {Object} shapes Given shapes
     * @memberOf ORYX.Plugins.AbstractLayouter.prototype
	 */
	layout: function(shapes){
		throw new Error("Layouter has to implement the layout function.")
	}
});ImageViewer = Ext.extend(Ext.Window, {
    initComponent: function() {
        this.bodyCfg = {
            tag: 'img',
            src: this.src,
            autoscroll: true,
            fixedcenter	: true
        };
        ImageViewer.superclass.initComponent.apply(this, arguments);
    },

    onRender: function() {
        ImageViewer.superclass.onRender.apply(this, arguments);
        this.body.on('load', this.onImageLoad, this, {single: true});
    },

    onImageLoad: function() {
       // var h = this.getFrameHeight(),
       // w = this.getFrameWidth();
       // this.setSize(this.body.dom.offsetWidth + w, this.body.dom.offsetHeight + h);
    },

    setSrc: function(src) {
        this.body.on('load', this.onImageLoad, this, {single: true});
        //this.body.dom.style.width = this.body.dom.style.width = 'auto';
        this.body.dom.src = src;
    },

    initEvents: function() {
        ImageViewer.superclass.initEvents.apply(this, arguments);
        if (this.resizer) {
            this.resizer.preserveRatio = true;
        }
    }
});if(!Signavio){ var Signavio = {} };
	if (!Signavio.Core) { Signavio.Core = {} };
	Signavio.Core.Version = "1.0";
			/**
 * Copyright (c) 2009
 *
 * Willi Tscheschner
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if (!Signavio) {
	var Signavio = new Object();
}

if (!Signavio.Plugins) {
	Signavio.Plugins = new Object();
}

if (!Signavio.Plugins.Utils) {
	Signavio.Plugins.Utils = new Object();
}

if (!Signavio.Helper) {
	Signavio.Helper = new Object();
}


new function(){
	
	var mask;
	
	
	Signavio.Plugins.Utils.getFFVersion = function(){
		try {
			return Number(window.navigator.userAgent.match("Firefox.([0-9]+[\.][0-9]+)")[1]) || 0 ;
		} catch(e){
			return 0;
		}	
	}
	
	
	/**
	 * Shows an overlay of signavio
	 */
	Signavio.Helper.ShowMask = function(force, parent){
		
		if (!force && ORYX.CONFIG.PREVENT_LOADINGMASK_AT_READY === true){
			return;
		}		
		
		if (mask){
			return;
		}
		
		var s 	= "background:white;bottom:0;height:100%;left:0;position:absolute;right:0;top:0;width:100%;z-index:100000;"
		var ss 	= "left:50%;margin-left:-200px;margin-top:-90px;position:absolute;top:50%;display:none;width:391px;"
		var sversion 	= "color:#ad0f5b;padding-right:10px;font-family:tahoma,arial,san-serif;font-size:12px;";
		var stext 		= "display:block;position:relative;text-align:right;top:0;width:100%;";
		var stitle 		= "color:#ad0f5b;font-weight:bold;padding-right:10px;font-family:tahoma,arial,san-serif;font-size:12px;"
		var sloading 	= "height:16px;width:16px;margin-bottom:-4px;background: transparent url(../libs/ext-2.0.2/resources/images/default/tree/loading.gif) no-repeat center;"
		var simg 		= "padding-bottom:10px;border-bottom:1px solid #ad0f5b;";

		// Define the parent
		parent = (parent ? Ext.get(parent) : null) || Ext.getBody();
		
		if (parent !== Ext.getBody()){
			parent.setStyle("position", "relative")
		}

		mask = Ext.get(document.createElement("div"));
		parent.appendChild(mask);
		mask.dom.setAttribute("style", s);
		mask.dom.innerHTML = 	"<div class='mask-logo' style='"+ss+"'>"+
									"<div>"+
										"<img style='"+simg+"' src='"+ORYX.CONFIG.EXPLORER_PATH+"/src/img/signavio/smoky/logo.png' />"+
									"</div>"+
									"<span class='mask-text' style='"+stext+"'>"+
										"<span class='mask-title' style='"+stitle+"'>Editor</span>"+
										"<span class='mask-version' style='"+sversion+"'>Version "+Signavio.Core.Version+"</span>"+
										"<img style='"+sloading+"' src='"+(ORYX.CONFIG.BLANK_IMAGE||Ext.BLANK_IMAGE_URL)+"'/>"+
									"</span>" +
								"</div>";

		mask.first().show({duration:0.3});

	}
			
	// When body is loaded, show overlay		
	Ext.onReady(Signavio.Helper.ShowMask);
	
	/**
	 * Hides the overlay
	 */
	Signavio.Helper.HideMask = function(){
		window.setTimeout(function(){
			if (mask){			
				mask.first().hide({duration:0.4, remove:true,  block:true});
				mask.hide({duration:0.3, remove:true,  block :true});
				delete mask;
			}

		}.bind(this), 2000)
	}
			
	Signavio.Plugins.Loading = {
	
		facade: undefined,
		construct: function(facade) {
			this.facade = facade;
			
			this.facade.registerOnEvent(ORYX.CONFIG.EVENT_LOADED, Signavio.Helper.HideMask);
			
			/**
			 * Overwrite the toJSON method in the Canvas
			 * to set the correct stencilset namespace.
			 * 
			 */
			/*(var me = this;
			new function(){
				// Copy prototype method
				var toJSON = ORYX.Core.Canvas.prototype.toJSON;
				ORYX.Core.Canvas.prototype.toJSON = function(){
					// Call super
					var json = toJSON.call(this);
					// Check for replace stencil set namespace
					json.stencilset.namespace = me.facade.getModelMetaData().model.stencilset.namespace;
					
					return json;
				}
			}()*/
		}
	}
	
	Signavio.Plugins.Loading = Clazz.extend(Signavio.Plugins.Loading);

	/**
	 * Provides an uniq id
	 * @overwrite
	 * @return {String}
	 *
	 */
	ORYX.Editor.provideId = function() {
		var res = [], hex = '0123456789ABCDEF';
	
		for (var i = 0; i < 36; i++) res[i] = Math.floor(Math.random()*0x10);
	
		res[14] = 4;
		res[19] = (res[19] & 0x3) | 0x8;
	
		for (var i = 0; i < 36; i++) res[i] = hex[res[i]];
	
		res[8] = res[13] = res[18] = res[23] = '-';
	
		return "sid-" + res.join('');
	};


}();


/**
 * Ext specific extension
 * 
 * 
 * 
 */
new function(){
	
	/**
	 * Implementation of an Ext-LinkButton
	 * 
	 * 
	 */
	Ext.LinkButton = Ext.extend(Ext.BoxComponent, {

		// On Click Handler
	    click: null,
		
		// Image url 
	    image: null,
		
		// Image style (only if an image url is setted) 
	    imageStyle: null,

		toggle:false, 
		
		toggleStyle:null,

		selected:false,
		
		href:false,

		el: null, 
		
	    // private
	    onRender : function(ct, position){
					
	        if( this.el == null ){	

	            this.el = document.createElement('a');

	            if (this.tabIndex)
	            	this.el.setAttribute("tabindex", this.tabIndex)
	            
	            this.el.id = this.getId();
	            this.el.className = this.cls||"x-link-button";
				
				if( !this.disabled )
	            	this.el.href = this.href ? this.href : "#" + this.text;

	            if( !this.disabled ){
	                Element.observe( this.el, 'click', this.onClick.bind(this));
	            }
		
				if( this.image ){
					this.el.innerHTML = '<img src="' + this.image + '" title="' + this.text + '"' + ( this.imageStyle ? ' style="' + this.imageStyle + '"/>': '/>')
				} else {
					this.el.innerHTML = this.text ? Ext.util.Format.htmlEncode(this.text) : (this.html || '');	
				}

	            if(this.forId){
	                this.el.setAttribute('htmlFor', this.forId);
	            }

	        }

	        Ext.LinkButton.superclass.onRender.call(this, ct, position);

	    },
		
		onClick: function(e){
			
			if( this.disabled ){ Event.stop(e); return; }
			
			// Toggle the button
			if( this.toggle ){
				this.selected = !this.selected;
				if( this.toggleStyle ){
					this._setStyle( this.el.dom, '')
					this.el.dom.setAttribute('style','')
					if( this.selected ){
						this.el.applyStyles( this.toggleStyle )
					} else {
						this.el.applyStyles( this.initialConfig.style )
					}
				}
			}

			
			if( this.click instanceof Function )
				this.click.apply(this.click, [this, e]); 
			 
			Event.stop(e)
		},
	    
	    setText: function(t, encode){
	        this.text = t;
	        if(this.rendered){
	            this.el.dom.innerHTML = encode !== false ? Ext.util.Format.htmlEncode(t) : t;
	        }
	        return this;
	    },
		
		_setStyle: function(node, style){
			if( Ext.isIE ){
				node.style.setAttribute('cssText', style );	
			} else {
				node.setAttribute('style', style );	
			}
		}
	});

	Ext.reg('linkbutton', Ext.LinkButton);
	
}();


/**
 * Helper Methods
 * 
 */

new function(){
	
	
	Signavio.Helper.RecordReader = function(meta){
	    meta = meta || {};
	    this.rels = meta.rels || this.rels;
	    Signavio.Helper.RecordReader.superclass.constructor.call(this, meta, ['rep','href','rel']);
	};
	Ext.extend(Signavio.Helper.RecordReader, Ext.data.JsonReader, {

		rels: ["gitem"],
		
		read : function(response){
			var json = response.responseText;
			var o = eval("("+json+")");
			if(!o) {
				throw {message: "JsonReader.read: Json object not found"};
			}
			var Record = this.recordType;
			var records = [], total = 0;
			o.each(function(rec){
				if (this.rels.include(rec.rel)) {
					records.push(new Record(rec));
				} 
				if (rec.rel == "info" && rec.rep.size){
					total = rec.rep.size;
				}
			}.bind(this))
			return {
				success : true,
				records : records,
				totalRecords : total || records.length
			}
		}
	})
	
	
	
	/**
	 * Creates a new record, including 'rel', 'href', and 'rep' attributes
	 * @param {String} rel
	 * @param {String} href
	 * @param {Object} rep
	 */
	Signavio.Helper.createRecord = function(rel, href, rep){
					
		var Rec = Ext.data.Record.create(["rel", "href", "rep"]);

		var record = new Rec({
		    rel	: rel,
		    href: href,
		    rep	: rep
		});
		
		return record;
	}	
}()

/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/


if(!ORYX.Plugins) {
	ORYX.Plugins = new Object();
}

ORYX.Plugins.Toolbar = Clazz.extend({

	facade: undefined,
	plugs:	[],

	construct: function(facade, ownPluginData) {
		this.facade = facade;
		
		this.groupIndex = new Hash();
		ownPluginData.properties.each((function(value){
			if(value.group && value.index != undefined) {
				this.groupIndex[value.group] = value.index
			}
		}).bind(this));
		
		Ext.QuickTips.init();

		this.buttons = [];
        this.facade.registerOnEvent(ORYX.CONFIG.EVENT_BUTTON_UPDATE, this.onButtonUpdate.bind(this));
	},
    
    /**
     * Can be used to manipulate the state of a button.
     * @example
     * this.facade.raiseEvent({
     *   type: ORYX.CONFIG.EVENT_BUTTON_UPDATE,
     *   id: this.buttonId, // have to be generated before and set in the offer method
     *   pressed: true
     * });
     * @param {Object} event
     */
    onButtonUpdate: function(event){
        var button = this.buttons.find(function(button){
            return button.id === event.id;
        });
        
        if(event.pressed !== undefined){
            button.buttonInstance.toggle(event.pressed);
        }
    },

	registryChanged: function(pluginsData) {
        // Sort plugins by group and index
		var newPlugs =  pluginsData.sortBy((function(value) {
			return ((this.groupIndex[value.group] != undefined ? this.groupIndex[value.group] : "" ) + value.group + "" + value.index).toLowerCase();
		}).bind(this));
		var plugs = $A(newPlugs).findAll(function(value){
										return !this.plugs.include(value) && (!value.target || value.target === ORYX.Plugins.Toolbar)
									}.bind(this));
		if(plugs.length<1)
			return;

		this.buttons = [];

		ORYX.Log.trace("Creating a toolbar.")
		if(!this.toolbar){
			this.toolbar = new Ext.ux.SlicedToolbar({
			height: 24
		});
				var region = this.facade.addToRegion("north", this.toolbar, "Toolbar");
		}
		
		
		var currentGroupsName = this.plugs.last()?this.plugs.last().group:plugs[0].group;
        
        // Map used to store all drop down buttons of current group
        var currentGroupsDropDownButton = {};

		
		plugs.each((function(value) {
			if(!value.name) {return}
			this.plugs.push(value);
            // Add seperator if new group begins
			if(currentGroupsName != value.group) {
			    this.toolbar.add('-');
				currentGroupsName = value.group;
                currentGroupsDropDownButton = {};
			}

            // If an drop down group icon is provided, a split button should be used
            if(value.dropDownGroupIcon){
                var splitButton = currentGroupsDropDownButton[value.dropDownGroupIcon];
                
                // Create a new split button if this is the first plugin using it 
                if(splitButton === undefined){
                    splitButton = currentGroupsDropDownButton[value.dropDownGroupIcon] = new Ext.Toolbar.SplitButton({
                        cls: "x-btn-icon", //show icon only
                        icon: value.dropDownGroupIcon,
                        menu: new Ext.menu.Menu({
                            items: [] // items are added later on
                        }),
                        listeners: {
                          click: function(button, event){
                            // The "normal" button should behave like the arrow button
                            if(!button.menu.isVisible() && !button.ignoreNextClick){
                                button.showMenu();
                            } else {
                                button.hideMenu();
                            }
                          } 
                        }
                    });
                    
                    this.toolbar.add(splitButton);
                }
                
                // General config button which will be used either to create a normal button
                // or a check button (if toggling is enabled)
                var buttonCfg = {
                    icon: value.icon,
                    text: value.name,
                    itemId: value.id,
                    handler: value.toggle ? undefined : value.functionality,
                    checkHandler: value.toggle ? value.functionality : undefined,
                    listeners: {
                        render: function(item){
                            // After rendering, a tool tip should be added to component
                            if (value.description) {
                                new Ext.ToolTip({
                                    target: item.getEl(),
                                    title: value.description
                                })
                            }
                        }
                    }
                }
                
                // Create buttons depending on toggle
                if(value.toggle) {
                    var button = new Ext.menu.CheckItem(buttonCfg);
                } else {
                    var button = new Ext.menu.Item(buttonCfg);
                }
                
                splitButton.menu.add(button);
                
            } else if(value.addFill) {
				this.toolbar.addFill();
			} else { // create normal, simple button
                var button = new Ext.Toolbar.Button({
                    icon:           value.icon,         // icons can also be specified inline
                    cls:            'x-btn-icon',       // Class who shows only the icon
                    itemId:         value.id,
					tooltip:        value.description,  // Set the tooltip
                    tooltipType:    'title',            // Tooltip will be shown as in the html-title attribute
                    handler:        value.toggle ? null : value.functionality,  // Handler for mouse click
                    enableToggle:   value.toggle, // Option for enabling toggling
                    toggleHandler:  value.toggle ? value.functionality : null // Handler for toggle (Parameters: button, active)
                }); 
                
                this.toolbar.add(button);

                button.getEl().onclick = function() {this.blur()}
            }
			     
			value['buttonInstance'] = button;
			this.buttons.push(value);
			
		}).bind(this));

		this.enableButtons([]);
        
        //TODO this should be done when resizing and adding elements!!!!
        this.toolbar.calcSlices();
		window.addEventListener("resize", function(event){this.toolbar.calcSlices()}.bind(this), false);
		window.addEventListener("onresize", function(event){this.toolbar.calcSlices()}.bind(this), false);

	},
	
	onSelectionChanged: function(event) {
		this.enableButtons(event.elements);
	},

	enableButtons: function(elements) {
		// Show the Buttons
		this.buttons.each((function(value){
			value.buttonInstance.enable();
						
			// If there is less elements than minShapes
			if(value.minShape && value.minShape > elements.length)
				value.buttonInstance.disable();
			// If there is more elements than minShapes
			if(value.maxShape && value.maxShape < elements.length)
				value.buttonInstance.disable();	
			// If the plugin is not enabled	
			if(value.isEnabled && !value.isEnabled(value.buttonInstance))
				value.buttonInstance.disable();
			
		}).bind(this));		
	}
});

Ext.ns("Ext.ux");
Ext.ux.SlicedToolbar = Ext.extend(Ext.Toolbar, {
    currentSlice: 0,
    iconStandardWidth: 22, //22 px 
    seperatorStandardWidth: 2, //2px, minwidth for Ext.Toolbar.Fill
    toolbarStandardPadding: 2,
    
    initComponent: function(){
        Ext.apply(this, {
        });
        Ext.ux.SlicedToolbar.superclass.initComponent.apply(this, arguments);
    },
    
    onRender: function(){
        Ext.ux.SlicedToolbar.superclass.onRender.apply(this, arguments);
    },
    
    onResize: function(){
        Ext.ux.SlicedToolbar.superclass.onResize.apply(this, arguments);
    },
    
    calcSlices: function(){
        var slice = 0;
        this.sliceMap = {};
        var sliceWidth = 0;
        var toolbarWidth = this.getEl().getWidth();

        this.items.getRange().each(function(item, index){
            //Remove all next and prev buttons
            if (item.helperItem) {
                item.destroy();
                return;
            }
            
            var itemWidth = item.getEl().getWidth();
            
            if(sliceWidth + itemWidth + 5 * this.iconStandardWidth > toolbarWidth){
                var itemIndex = this.items.indexOf(item);
                
                this.insertSlicingButton("next", slice, itemIndex);
                
                if (slice !== 0) {
                    this.insertSlicingButton("prev", slice, itemIndex);
                }
                
                this.insertSlicingSeperator(slice, itemIndex);

                slice += 1;
                sliceWidth = 0;
            }
            
            this.sliceMap[item.id] = slice;
            sliceWidth += itemWidth;
        }.bind(this));
        
        // Add prev button at the end
        if(slice > 0){
            this.insertSlicingSeperator(slice, this.items.getCount()+1);
            this.insertSlicingButton("prev", slice, this.items.getCount()+1);
            var spacer = new Ext.Toolbar.Spacer();
            this.insertSlicedHelperButton(spacer, slice, this.items.getCount()+1);
            Ext.get(spacer.id).setWidth(this.iconStandardWidth);
        }
        
        this.maxSlice = slice;
        
        // Update view
        this.setCurrentSlice(this.currentSlice);
    },
    
    insertSlicedButton: function(button, slice, index){
        this.insertButton(index, button);
        this.sliceMap[button.id] = slice;
    },
    
    insertSlicedHelperButton: function(button, slice, index){
        button.helperItem = true;
        this.insertSlicedButton(button, slice, index);
    },
    
    insertSlicingSeperator: function(slice, index){
        // Align right
        this.insertSlicedHelperButton(new Ext.Toolbar.Fill(), slice, index);
    },
    
    // type => next or prev
    insertSlicingButton: function(type, slice, index){
        var nextHandler = function(){this.setCurrentSlice(this.currentSlice+1)}.bind(this);
        var prevHandler = function(){this.setCurrentSlice(this.currentSlice-1)}.bind(this);
        
        var button = new Ext.Toolbar.Button({
            cls: "x-btn-icon",
            icon: ORYX.CONFIG.ROOT_PATH + "images/toolbar_"+type+".png",
            handler: (type === "next") ? nextHandler : prevHandler
        });
        
        this.insertSlicedHelperButton(button, slice, index);
    },
    
    setCurrentSlice: function(slice){
        if(slice > this.maxSlice || slice < 0) return;
        
        this.currentSlice = slice;

        this.items.getRange().each(function(item){
            item.setVisible(slice === this.sliceMap[item.id]);
        }.bind(this));
    }
});/**
 * Copyright (c) 2009
 * Jan-Felix Schwarz, Willi Tscheschner, Nicolas Peters, Martin Czuchra, Daniel Polak
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if(!ORYX.Plugins) {
	ORYX.Plugins = new Object();
}

ORYX.Plugins.ShapeMenuPlugin = {

	construct: function(facade) {
		this.facade = facade;
		
		this.alignGroups = new Hash();

		var containerNode = this.facade.getCanvas().getHTMLContainer();

		this.shapeMenu = new ORYX.Plugins.ShapeMenu(containerNode);
		this.currentShapes = [];

		// Register on dragging and resizing events for show/hide of ShapeMenu
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_DRAGDROP_START, this.hideShapeMenu.bind(this));
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_DRAGDROP_END,  this.showShapeMenu.bind(this));
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_RESIZE_START,  (function(){
			this.hideShapeMenu();
			this.hideMorphMenu();
		}).bind(this));
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_RESIZE_END,  this.showShapeMenu.bind(this));
		
		// Enable DragZone
		var DragZone = new Ext.dd.DragZone(containerNode.parentNode, {shadow: !Ext.isMac});
		DragZone.afterDragDrop = this.afterDragging.bind(this, DragZone);
		DragZone.beforeDragOver = this.beforeDragOver.bind(this, DragZone);
		
		// Memory of created Buttons
		this.createdButtons = {};
		
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_STENCIL_SET_LOADED, (function(){ this.registryChanged() }).bind(this));

		this.timer = null;
		
		this.resetElements = true;

	},

	hideShapeMenu: function(event) {
		window.clearTimeout(this.timer);
		this.timer = null;
		this.shapeMenu.hide();
	},

	showShapeMenu: function( dontGenerateNew ) {
	
		if( !dontGenerateNew || this.resetElements ){
			
			window.clearTimeout(this.timer);
			this.timer = window.setTimeout(function(){
				
					// Close all Buttons
				this.shapeMenu.closeAllButtons();
		
				// Show the Morph Button
				this.showMorphButton(this.currentShapes);
				
				// Show the Stencil Buttons
				this.showStencilButtons(this.currentShapes);	
				
				// Show the ShapeMenu
				this.shapeMenu.show(this.currentShapes);
				
				this.resetElements = false;
			}.bind(this), 300)
			
		} else {
			
			window.clearTimeout(this.timer);
			this.timer = null;
			
			// Show the ShapeMenu
			this.shapeMenu.show(this.currentShapes);
			
		}
	},

	registryChanged: function(pluginsData) {
		
		if(pluginsData) {
			pluginsData = pluginsData.each(function(value) {value.group = value.group ? value.group : 'unknown'});
			this.pluginsData = pluginsData.sortBy( function(value) {
				return (value.group + "" + value.index);
			});			
		}		
		
		this.shapeMenu.removeAllButtons();
		this.shapeMenu.setNumberOfButtonsPerLevel(ORYX.CONFIG.SHAPEMENU_RIGHT, 2);
		this.createdButtons = {};
		
		this.createMorphMenu();
		
		if( !this.pluginsData ){
			this.pluginsData = [];
		}

		this.baseMorphStencils = this.facade.getRules().baseMorphs();
		
		// Checks if the stencil set has morphing attributes
		var isMorphing = this.facade.getRules().containsMorphingRules();
		
		// Create Buttons for all Stencils of all loaded stencilsets
		var stencilsets = this.facade.getStencilSets();
		stencilsets.values().each((function(stencilSet){
			
			var nodes = stencilSet.nodes();
			nodes.each((function(stencil) {
								
				// Create a button for each node
				var option = {type: stencil.id(), namespace: stencil.namespace(), connectingType: true};
				var button = new ORYX.Plugins.ShapeMenuButton({
					callback: 	this.newShape.bind(this, option),
					icon: 		stencil.icon(),
					align: 		ORYX.CONFIG.SHAPEMENU_RIGHT,
					group:		0,
					//dragcallback: this.hideShapeMenu.bind(this),
					msg:		stencil.title() + " - " + ORYX.I18N.ShapeMenuPlugin.clickDrag
					});
				
				// Add button to shape menu
				this.shapeMenu.addButton(button); 
				
				// Add to the created Button Array
				this.createdButtons[stencil.namespace() + stencil.type() + stencil.id()] = button;
				
				// Drag'n'Drop will enable
				Ext.dd.Registry.register(button.node.lastChild, option);				
			}).bind(this));
		

			var edges = stencilSet.edges();
			edges.each((function(stencil) {

				// Create a button for each edge
				var option = {type: stencil.id(), namespace: stencil.namespace()};
				var button = new ORYX.Plugins.ShapeMenuButton({
					callback: 	this.newShape.bind(this, option),
					// icon: 		isMorphing ? ORYX.PATH + "images/edges.png" : stencil.icon(),
					icon: 		stencil.icon(),
					align: 		ORYX.CONFIG.SHAPEMENU_RIGHT,
					group:		1,
					//dragcallback: this.hideShapeMenu.bind(this),
					msg:		(isMorphing ? ORYX.I18N.Edge : stencil.title()) + " - " + ORYX.I18N.ShapeMenuPlugin.drag
				});
				
				// Add button to shape menu
				this.shapeMenu.addButton(button); 
				
				// Add to the created Button Array
				this.createdButtons[stencil.namespace() + stencil.type() + stencil.id()] = button;
				
				// Drag'n'Drop will enable
				Ext.dd.Registry.register(button.node.lastChild, option);
				
			}).bind(this));
		
		}).bind(this));				
					
	},
	
	createMorphMenu: function() {
		
		this.morphMenu = new Ext.menu.Menu({
			id: 'Oryx_morph_menu',
			items: []
		});
		
		this.morphMenu.on("mouseover", function() {
			this.morphMenuHovered = true;
		}, this);
		this.morphMenu.on("mouseout", function() {
			this.morphMenuHovered = false;
		}, this);
		
		
		// Create the button to show the morph menu
		var button = new ORYX.Plugins.ShapeMenuButton({
			hovercallback: 	(ORYX.CONFIG.ENABLE_MORPHMENU_BY_HOVER ? this.showMorphMenu.bind(this) : undefined), 
			resetcallback: 	(ORYX.CONFIG.ENABLE_MORPHMENU_BY_HOVER ? this.hideMorphMenu.bind(this) : undefined), 
			callback:		(ORYX.CONFIG.ENABLE_MORPHMENU_BY_HOVER ? undefined : this.toggleMorphMenu.bind(this)), 
			icon: 			ORYX.PATH + 'images/wrench_orange.png',
			align: 			ORYX.CONFIG.SHAPEMENU_BOTTOM,
			group:			0,
			msg:			ORYX.I18N.ShapeMenuPlugin.morphMsg
		});				
		
		this.shapeMenu.setNumberOfButtonsPerLevel(ORYX.CONFIG.SHAPEMENU_BOTTOM, 1)
		this.shapeMenu.addButton(button);
		this.morphMenu.getEl().appendTo(button.node);
		this.morphButton = button;
	},
	
	showMorphMenu: function() {
		this.morphMenu.show(this.morphButton.node);
		this._morphMenuShown = true;
	},
	
	hideMorphMenu: function() {
		this.morphMenu.hide();
		this._morphMenuShown = false;
	},
	
	toggleMorphMenu: function() {
		if(this._morphMenuShown)
			this.hideMorphMenu();
		else
			this.showMorphMenu();
	},
	
	onSelectionChanged: function(event) {
		var elements = event.elements;

		this.hideShapeMenu();
		this.hideMorphMenu();
				
		if( this.currentShapes.inspect() !== elements.inspect() ){
			this.currentShapes = elements;
			this.resetElements = true;
			
			this.showShapeMenu();
		} else {
			this.showShapeMenu(true)
		}
		
	},
	
	/**
	 * Show button for morphing the selected shape into another stencil
	 */
	showMorphButton: function(elements) {
		
		if(elements.length != 1) return;
		
		var possibleMorphs = this.facade.getRules().morphStencils({ stencil: elements[0].getStencil() });
		possibleMorphs = possibleMorphs.select(function(morph) {
			if(elements[0].getStencil().type() === "node") {
				//check containment rules
				return this.facade.getRules().canContain({containingShape:elements[0].parent, containedStencil:morph});
			} else { 
				//check connect rules
				return this.facade.getRules().canConnect({
											sourceShape:	elements[0].dockers.first().getDockedShape(), 
											edgeStencil:	morph, 
											targetShape:	elements[0].dockers.last().getDockedShape()
											});	
			}
		}.bind(this));
		if(possibleMorphs.size()<=1) return; // if morphing to other stencils is not possible, don't show button
		
		this.morphMenu.removeAll();
		
		// populate morph menu with the possible morph stencils ordered by their position
		possibleMorphs = possibleMorphs.sortBy(function(stencil) { return stencil.position(); });
		possibleMorphs.each((function(morph) {
			var menuItem = new Ext.menu.Item({ 
				text: morph.title(), 
				icon: morph.icon(), 
				disabled: morph.id()==elements[0].getStencil().id(),
				disabledClass: ORYX.CONFIG.MORPHITEM_DISABLED,
				handler: (function() { this.morphShape(elements[0], morph); }).bind(this) 
			});
			this.morphMenu.add(menuItem);
		}).bind(this));
		
		this.morphButton.prepareToShow();
		
	},

	/**
	 * Show buttons for creating following shapes
	 */
	showStencilButtons: function(elements) {

		if(elements.length != 1) return;

		//TODO temporaere nutzung des stencilsets
		var sset = this.facade.getStencilSets()[elements[0].getStencil().namespace()];

		// Get all available edges
		var edges = this.facade.getRules().outgoingEdgeStencils({canvas:this.facade.getCanvas(), sourceShape:elements[0]});
		
		// And find all targets for each Edge
		var targets = new Array();
		var addedEdges = new Array();
		
		var isMorphing = this.facade.getRules().containsMorphingRules();
		
		edges.each((function(edge) {
			
			if (isMorphing){
				if(this.baseMorphStencils.include(edge)) {
					var shallAppear = true;
				} else {
					
					// if edge is member of a morph groups where none of the base morphs is in the outgoing edges
					// we want to display the button (but only for the first one)
					
					var possibleMorphs = this.facade.getRules().morphStencils({ stencil: edge });
					
					var shallAppear = !possibleMorphs.any((function(morphStencil) {
						if(this.baseMorphStencils.include(morphStencil) && edges.include(morphStencil)) return true;
						return addedEdges.include(morphStencil);
					}).bind(this));
					
				}
			}
			if(shallAppear || !isMorphing) {
				if(this.createdButtons[edge.namespace() + edge.type() + edge.id()]) 
					this.createdButtons[edge.namespace() + edge.type() + edge.id()].prepareToShow();
				addedEdges.push(edge);
			}
			
			// get all targets for this edge
			targets = targets.concat(this.facade.getRules().targetStencils(
					{canvas:this.facade.getCanvas(), sourceShape:elements[0], edgeStencil:edge}));

		}).bind(this));
		
		targets.uniq();
		
		var addedTargets = new Array();
		// Iterate all possible target 
		targets.each((function(target) {
			
			if (isMorphing){
				
				// continue with next target stencil
				if (target.type()==="edge") return; 
				
				// continue when stencil should not shown in the shape menu
				if (!this.facade.getRules().showInShapeMenu(target)) return 
				
				// if target is not a base morph 
				if(!this.baseMorphStencils.include(target)) {
					
					// if target is member of a morph groups where none of the base morphs is in the targets
					// we want to display the button (but only for the first one)
					
					var possibleMorphs = this.facade.getRules().morphStencils({ stencil: target });
					if(possibleMorphs.size()==0) return; // continue with next target
	
					var baseMorphInTargets = possibleMorphs.any((function(morphStencil) {
						if(this.baseMorphStencils.include(morphStencil) && targets.include(morphStencil)) return true;
						return addedTargets.include(morphStencil);
					}).bind(this));
					
					if(baseMorphInTargets) return; // continue with next target
				}
			}
			
			// if this is reached the button shall appear in the shape menu:
			if(this.createdButtons[target.namespace() + target.type() + target.id()]) 
				this.createdButtons[target.namespace() + target.type() + target.id()].prepareToShow();
			addedTargets.push(target);
			
		}).bind(this));
		
	},

	
	beforeDragOver: function(dragZone, target, event){

		if (this.shapeMenu.isVisible){
			this.hideShapeMenu();
		}

		var coord = this.facade.eventCoordinates(event.browserEvent);
		var aShapes = this.facade.getCanvas().getAbstractShapesAtPosition(coord);

		if(aShapes.length <= 0) {return false;}	
		
		var el = aShapes.last();
		
		if(this._lastOverElement == el) {
			
			return false;
			
		} else {
			// check containment rules
			var option = Ext.dd.Registry.getHandle(target.DDM.currentTarget);
			
			// revert to original options if these were modified
			if(option.backupOptions) {
				for(key in option.backupOptions) {
					option[key] = option.backupOptions[key];
				}
				delete option.backupOptions;
			}

			var stencilSet = this.facade.getStencilSets()[option.namespace];

			var stencil = stencilSet.stencil(option.type);

			var candidate = aShapes.last();

			if(stencil.type() === "node") {
				//check containment rules
				var canContain = this.facade.getRules().canContain({containingShape:candidate, containedStencil:stencil});
									
				// if not canContain, try to find a morph which can be contained
				if(!canContain) {
					var possibleMorphs = this.facade.getRules().morphStencils({stencil: stencil});
					for(var i=0; i<possibleMorphs.size(); i++) {
						canContain = this.facade.getRules().canContain({
							containingShape:candidate, 
							containedStencil:possibleMorphs[i]
						});
						if(canContain) {
							option.backupOptions = Object.clone(option);
							option.type = possibleMorphs[i].id();
							option.namespace = possibleMorphs[i].namespace();
							break;
						}
					}
				}
					
				this._currentReference = canContain ? candidate : undefined;
					
	
			} else { //Edge
			
				var curCan = candidate, orgCan = candidate;
				var canConnect = false;
				while(!canConnect && curCan && !(curCan instanceof ORYX.Core.Canvas)){
					candidate = curCan;
					//check connection rules
					canConnect = this.facade.getRules().canConnect({
											sourceShape: this.currentShapes.first(), 
											edgeStencil: stencil, 
											targetShape: curCan
											});	
					curCan = curCan.parent;
				}

			 	// if not canConnect, try to find a morph which can be connected
				if(!canConnect) {
					
					candidate = orgCan;
					var possibleMorphs = this.facade.getRules().morphStencils({stencil: stencil});
					for(var i=0; i<possibleMorphs.size(); i++) {
						var curCan = candidate;
						var canConnect = false;
						while(!canConnect && curCan && !(curCan instanceof ORYX.Core.Canvas)){
							candidate = curCan;
							//check connection rules
							canConnect = this.facade.getRules().canConnect({
														sourceShape:	this.currentShapes.first(), 
														edgeStencil:	possibleMorphs[i], 
														targetShape:	curCan
													});	
							curCan = curCan.parent;
						}
						if(canConnect) {
							option.backupOptions = Object.clone(option);
							option.type = possibleMorphs[i].id();
							option.namespace = possibleMorphs[i].namespace();
							break;
						} else {
							candidate = orgCan;
						}
					}
				}
										
				this._currentReference = canConnect ? candidate : undefined;		
				
			}	

			this.facade.raiseEvent({
											type:		ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW, 
											highlightId:'shapeMenu',
											elements:	[candidate],
											color:		this._currentReference ? ORYX.CONFIG.SELECTION_VALID_COLOR : ORYX.CONFIG.SELECTION_INVALID_COLOR
										});
												
			var pr = dragZone.getProxy();
			pr.setStatus(this._currentReference ? pr.dropAllowed : pr.dropNotAllowed );
			pr.sync();
										
		}
		
		this._lastOverElement = el;
		
		return false;
	},	

	afterDragging: function(dragZone, target, event) {
		
		if (!(this.currentShapes instanceof Array)||this.currentShapes.length<=0) {
			return;
		}
		var sourceShape = this.currentShapes;
		
		this._lastOverElement = undefined;
		
		// Hide the highlighting
		this.facade.raiseEvent({type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE, highlightId:'shapeMenu'});
		
		// Check if drop is allowed
		var proxy = dragZone.getProxy()
		if(proxy.dropStatus == proxy.dropNotAllowed) { return this.facade.updateSelection();}
				
		// Check if there is a current Parent
		if(!this._currentReference) { return }
				
		var option = Ext.dd.Registry.getHandle(target.DDM.currentTarget);
		option['parent'] = this._currentReference;

		var xy = event.getXY();
		var pos = {x: xy[0], y: xy[1]};

		var a = this.facade.getCanvas().node.getScreenCTM();
		// Correcting the UpperLeft-Offset
		pos.x -= a.e; pos.y -= a.f;
		// Correcting the Zoom-Faktor
		pos.x /= a.a; pos.y /= a.d;
		// Correcting the ScrollOffset
		pos.x -= document.documentElement.scrollLeft;
		pos.y -= document.documentElement.scrollTop;

		var parentAbs = this._currentReference.absoluteXY();
		pos.x -= parentAbs.x;
		pos.y -= parentAbs.y;
		
		// If the ctrl key is not pressed, 
		// snapp the new shape to the center 
		// if it is near to the center of the other shape
		if (!event.ctrlKey){
			// Get the center of the shape
			var cShape = this.currentShapes[0].bounds.center();
			// Snapp +-20 Pixel horizontal to the center 
			if (20 > Math.abs(cShape.x - pos.x)){
				pos.x = cShape.x;
			}
			// Snapp +-20 Pixel vertical to the center 
			if (20 > Math.abs(cShape.y - pos.y)){
				pos.y = cShape.y;
			}
		}
				
		option['position'] = pos;
		option['connectedShape'] = this.currentShapes[0];
		if(option['connectingType']) {
			var stencilset = this.facade.getStencilSets()[option.namespace];
			var containedStencil = stencilset.stencil(option.type);
			var args = { sourceShape: this.currentShapes[0], targetStencil: containedStencil };
			option['connectingType'] = this.facade.getRules().connectMorph(args).id();
		}
		
		if (ORYX.CONFIG.SHAPEMENU_DISABLE_CONNECTED_EDGE===true) {
			delete option['connectingType'];
		}
			
		var command = new ORYX.Plugins.ShapeMenuPlugin.CreateCommand(Object.clone(option), this._currentReference, pos, this);
		
		this.facade.executeCommands([command]);
		
		// Inform about completed Drag 
		this.facade.raiseEvent({type: ORYX.CONFIG.EVENT_SHAPE_MENU_CLOSE, source:sourceShape, destination:this.currentShapes});
		
		// revert to original options if these were modified
		if(option.backupOptions) {
			for(key in option.backupOptions) {
				option[key] = option.backupOptions[key];
			}
			delete option.backupOptions;
		}	
		
		this._currentReference = undefined;		
	},

	newShape: function(option, event) {
		var stencilset = this.facade.getStencilSets()[option.namespace];
		var containedStencil = stencilset.stencil(option.type);

		if(this.facade.getRules().canContain({
			containingShape:this.currentShapes.first().parent,
			"containedStencil":containedStencil
		})) {

			option['connectedShape'] = this.currentShapes[0];
			option['parent'] = this.currentShapes.first().parent;
			option['containedStencil'] = containedStencil;
		
			var args = { sourceShape: this.currentShapes[0], targetStencil: containedStencil };
			var targetStencil = this.facade.getRules().connectMorph(args);
			if (!targetStencil){ return }// Check if there can be a target shape
			option['connectingType'] = targetStencil.id();

			if (ORYX.CONFIG.SHAPEMENU_DISABLE_CONNECTED_EDGE===true) {
				delete option['connectingType'];
			}
			
			var command = new ORYX.Plugins.ShapeMenuPlugin.CreateCommand(option, undefined, undefined, this);
		
			this.facade.executeCommands([command]);
		}
	},
	
	/**
	 * Morph a shape to a new stencil
	 * {Command implemented}
	 * @param {Shape} shape
	 * @param {Stencil} stencil
	 */
	morphShape: function(shape, stencil) {
		
		var MorphTo = ORYX.Core.Command.extend({
			construct: function(shape, stencil, facade){
				this.shape = shape;
				this.stencil = stencil;
				this.facade = facade;
			},
			execute: function(){
				
				var shape = this.shape;
				var stencil = this.stencil;
				var resourceId = shape.resourceId;
				
				// Serialize all attributes
				var serialized = shape.serialize();
				stencil.properties().each((function(prop) {
					if(prop.readonly()) {
						serialized = serialized.reject(function(serProp) {
							return serProp.name==prop.id();
						});
					}
				}).bind(this));
		
				// Get shape if already created, otherwise create a new shape
				if (this.newShape){
					newShape = this.newShape;
					this.facade.getCanvas().add(newShape);
				} else {
					newShape = this.facade.createShape({
									type: stencil.id(),
									namespace: stencil.namespace(),
									resourceId: resourceId
								});
				}
				
				// calculate new bounds using old shape's upperLeft and new shape's width/height
				var boundsObj = serialized.find(function(serProp){
					return (serProp.prefix === "oryx" && serProp.name === "bounds");
				});
				
				var changedBounds = null;
				
				if(!this.facade.getRules().preserveBounds(shape.getStencil())) {
					
					var bounds = boundsObj.value.split(",");
					if (parseInt(bounds[0], 10) > parseInt(bounds[2], 10)) { // if lowerRight comes first, swap array items
						var tmp = bounds[0];
						bounds[0] = bounds[2];
						bounds[2] = tmp;
						tmp = bounds[1];
						bounds[1] = bounds[3];
						bounds[3] = tmp;
					}
					bounds[2] = parseInt(bounds[0], 10) + newShape.bounds.width();
					bounds[3] = parseInt(bounds[1], 10) + newShape.bounds.height();
					boundsObj.value = bounds.join(",");
					
				}  else {
					
					var height = shape.bounds.height();
					var width  = shape.bounds.width();
					
					// consider the minimum and maximum size of
					// the new shape
					
					if (newShape.minimumSize) {
						if (shape.bounds.height() < newShape.minimumSize.height) {
							height = newShape.minimumSize.height;
						}
						
						
						if (shape.bounds.width() < newShape.minimumSize.width) {
							width = newShape.minimumSize.width;
						}
					}
					
					if(newShape.maximumSize) {
						if(shape.bounds.height() > newShape.maximumSize.height) {
							height = newShape.maximumSize.height;
						}	
						
						if(shape.bounds.width() > newShape.maximumSize.width) {
							width = newShape.maximumSize.width;
						}
					}
					
					changedBounds = {
						a : {
							x: shape.bounds.a.x,
							y: shape.bounds.a.y
						},
						b : {
							x: shape.bounds.a.x + width,
							y: shape.bounds.a.y + height
						}						
					};
					
				}
				
				var oPos = shape.bounds.center();
				if(changedBounds !== null) {
					newShape.bounds.set(changedBounds);
				}
				
				// Set all related dockers
				this.setRelatedDockers(shape, newShape);
				
				// store DOM position of old shape
				var parentNode = shape.node.parentNode;
				var nextSibling = shape.node.nextSibling;
				
				// Delete the old shape
				this.facade.deleteShape(shape);
				
				// Deserialize the new shape - Set all attributes
				newShape.deserialize(serialized);
				/*
				 * Change color to default if unchanged
				 * 23.04.2010
				 */
				if(shape.getStencil().property("oryx-bgcolor") 
						&& shape.properties["oryx-bgcolor"]
						&& shape.getStencil().property("oryx-bgcolor").value().toUpperCase()== shape.properties["oryx-bgcolor"].toUpperCase()){
						if(newShape.getStencil().property("oryx-bgcolor")){
							newShape.setProperty("oryx-bgcolor", newShape.getStencil().property("oryx-bgcolor").value());
						}
				}	
				if(changedBounds !== null) {
					newShape.bounds.set(changedBounds);
				}
				
				if(newShape.getStencil().type()==="edge" || (newShape.dockers.length==0 || !newShape.dockers[0].getDockedShape())) {
					newShape.bounds.centerMoveTo(oPos);
				} 
				
				if(newShape.getStencil().type()==="node" && (newShape.dockers.length==0 || !newShape.dockers[0].getDockedShape())) {
					this.setRelatedDockers(newShape, newShape);
					
				}
				
				// place at the DOM position of the old shape
				if(nextSibling) parentNode.insertBefore(newShape.node, nextSibling);
				else parentNode.appendChild(newShape.node);
				
				// Set selection
				this.facade.setSelection([newShape]);
				this.facade.getCanvas().update();
				this.facade.updateSelection();
				this.newShape = newShape;
				
			},
			rollback: function(){
				
				if (!this.shape || !this.newShape || !this.newShape.parent) {return}
				
				// Append shape to the parent
				this.newShape.parent.add(this.shape);
				// Set dockers
				this.setRelatedDockers(this.newShape, this.shape);
				// Delete new shape
				this.facade.deleteShape(this.newShape);
				// Set selection
				this.facade.setSelection([this.shape]);
				// Update
				this.facade.getCanvas().update();
				this.facade.updateSelection();
			},
			
			/**
			 * Set all incoming and outgoing edges from the shape to the new shape
			 * @param {Shape} shape
			 * @param {Shape} newShape
			 */
			setRelatedDockers: function(shape, newShape){
				
				if(shape.getStencil().type()==="node") {
					
					(shape.incoming||[]).concat(shape.outgoing||[])
						.each(function(i) { 
							i.dockers.each(function(docker) {
								if (docker.getDockedShape() == shape) {
									var rPoint = Object.clone(docker.referencePoint);
									// Move reference point per percent

									var rPointNew = {
										x: rPoint.x*newShape.bounds.width()/shape.bounds.width(),
										y: rPoint.y*newShape.bounds.height()/shape.bounds.height()
									};

									docker.setDockedShape(newShape);
									// Set reference point and center to new position
									docker.setReferencePoint(rPointNew);
									if(i instanceof ORYX.Core.Edge) {
										docker.bounds.centerMoveTo(rPointNew);
									} else {
										var absXY = shape.absoluteXY();
										docker.bounds.centerMoveTo({x:rPointNew.x+absXY.x, y:rPointNew.y+absXY.y});
										//docker.bounds.moveBy({x:rPointNew.x-rPoint.x, y:rPointNew.y-rPoint.y});
									}
								}
							});	
						});
					
					// for attached events
					if(shape.dockers.length>0&&shape.dockers.first().getDockedShape()) {
						newShape.dockers.first().setDockedShape(shape.dockers.first().getDockedShape());
						newShape.dockers.first().setReferencePoint(Object.clone(shape.dockers.first().referencePoint));
					}
				
				} else { // is edge
					newShape.dockers.first().setDockedShape(shape.dockers.first().getDockedShape());
					newShape.dockers.first().setReferencePoint(shape.dockers.first().referencePoint);
					newShape.dockers.last().setDockedShape(shape.dockers.last().getDockedShape());
					newShape.dockers.last().setReferencePoint(shape.dockers.last().referencePoint);
				}
			}
		});
		
		// Create and execute command (for undo/redo)			
		var command = new MorphTo(shape, stencil, this.facade);
		this.facade.executeCommands([command]);
	}
}
ORYX.Plugins.ShapeMenuPlugin = ORYX.Plugins.AbstractPlugin.extend(ORYX.Plugins.ShapeMenuPlugin);

ORYX.Plugins.ShapeMenu = {

	/***
	 * Constructor.
	 */
	construct: function(parentNode) {

		this.bounds = undefined;
		this.shapes = undefined;
		this.buttons = [];
		this.isVisible = false;

		this.node = ORYX.Editor.graft("http://www.w3.org/1999/xhtml", $(parentNode),
			['div', {id: ORYX.Editor.provideId(), 'class':'Oryx_ShapeMenu'}]);
		
		this.alignContainers = new Hash();
		this.numberOfButtonsPerLevel = new Hash();
	},

	addButton: function(button) {
		this.buttons.push(button);
		// lazy grafting of the align containers
		if(!this.alignContainers[button.align]) {
			this.alignContainers[button.align] = ORYX.Editor.graft("http://www.w3.org/1999/xhtml", this.node,
					['div', {'class':button.align}]);
			this.node.appendChild(this.alignContainers[button.align]);
			
			// add event listeners for hover effect
			var onBubble = false;
			this.alignContainers[button.align].addEventListener(ORYX.CONFIG.EVENT_MOUSEOVER, this.hoverAlignContainer.bind(this, button.align), onBubble);
			this.alignContainers[button.align].addEventListener(ORYX.CONFIG.EVENT_MOUSEOUT, this.resetAlignContainer.bind(this, button.align), onBubble);
			this.alignContainers[button.align].addEventListener(ORYX.CONFIG.EVENT_MOUSEUP, this.hoverAlignContainer.bind(this, button.align), onBubble);
		}
		this.alignContainers[button.align].appendChild(button.node);
	},

	deleteButton: function(button) {
		this.buttons = this.buttons.without(button);
		this.node.removeChild(button.node);
	},

	removeAllButtons: function() {
		var me = this;
		this.buttons.each(function(value){
			if (value.node&&value.node.parentNode)
				value.node.parentNode.removeChild(value.node);
		});
		this.buttons = [];
	},

	closeAllButtons: function() {
		this.buttons.each(function(value){ value.prepareToHide() });
		this.isVisible = false;
	},

	
	/**
	 * Show the shape menu
	 */
	show: function(shapes) {

		//shapes = (shapes||[]).findAll(function(r){ return r && r.node && r.node.parent });

		if(shapes.length <= 0 )
			return

		this.shapes = shapes;

		var newBounds = undefined;
		var tmpBounds = undefined;

		this.shapes.each(function(value) {
			var a = value.node.getScreenCTM();
			var upL = value.absoluteXY();
			a.e = a.a*upL.x;
			a.f = a.d*upL.y;
			tmpBounds = new ORYX.Core.Bounds(a.e, a.f, a.e+a.a*value.bounds.width(), a.f+a.d*value.bounds.height());

			/*if(value instanceof ORYX.Core.Edge) {
				tmpBounds.moveBy(value.bounds.upperLeft())
			}*/

			if(!newBounds)
				newBounds = tmpBounds
			else
				newBounds.include(tmpBounds);

		});

		this.bounds = newBounds;
		//this.bounds.moveBy({x:document.documentElement.scrollLeft, y:document.documentElement.scrollTop});

		var bounds = this.bounds;

		var a = this.bounds.upperLeft();

		var left = 0,
			leftButtonGroup = 0;
		var top = 0,
			topButtonGroup = 0;
		var bottom = 0,
			bottomButtonGroup;
		var right = 0
			rightButtonGroup = 0;
		var size = 22;
		
		this.getWillShowButtons().sortBy(function(button) {
			return button.group;
		});
		
		this.getWillShowButtons().each(function(button){
			
			var numOfButtonsPerLevel = this.getNumberOfButtonsPerLevel(button.align);

			if (button.align == ORYX.CONFIG.SHAPEMENU_LEFT) {
				// vertical levels
				if(button.group!=leftButtonGroup) {
					left = 0;
					leftButtonGroup = button.group;
				}
				var x = Math.floor(left / numOfButtonsPerLevel)
				var y = left % numOfButtonsPerLevel;
				
				button.setLevel(x);
				
				button.setPosition(a.x-5 - (x+1)*size, 
						a.y+numOfButtonsPerLevel*button.group*size + button.group*0.3*size + y*size);
				
				//button.setPosition(a.x-22, a.y+left*size);
				left++;
 			} else if (button.align == ORYX.CONFIG.SHAPEMENU_TOP) {
 				// horizontal levels
 				if(button.group!=topButtonGroup) {
					top = 0;
					topButtonGroup = button.group;
				}
 				var x = top % numOfButtonsPerLevel;
 				var y = Math.floor(top / numOfButtonsPerLevel);
 				
 				button.setLevel(y);
 				
 				button.setPosition(a.x+numOfButtonsPerLevel*button.group*size + button.group*0.3*size + x*size,
 						a.y-5 - (y+1)*size);
				top++;
 			} else if (button.align == ORYX.CONFIG.SHAPEMENU_BOTTOM) {
 				// horizontal levels
 				if(button.group!=bottomButtonGroup) {
					bottom = 0;
					bottomButtonGroup = button.group;
				}
 				var x = bottom % numOfButtonsPerLevel;
 				var y = Math.floor(bottom / numOfButtonsPerLevel);
 				
 				button.setLevel(y);
 				
 				button.setPosition(a.x+numOfButtonsPerLevel*button.group*size + button.group*0.3*size + x*size,
 						a.y+bounds.height() + 5 + y*size);
				bottom++;
			} else {
				// vertical levels
				if(button.group!=rightButtonGroup) {
					right = 0;
					rightButtonGroup = button.group;
				}
				var x = Math.floor(right / numOfButtonsPerLevel)
				var y = right % numOfButtonsPerLevel;
				
				button.setLevel(x);
				
				button.setPosition(a.x+bounds.width() + 5 + x*size, 
						a.y+numOfButtonsPerLevel*button.group*size + button.group*0.3*size + y*size - 5);
				right++;
			}

			button.show();
		}.bind(this));
		this.isVisible = true;

	},

	/**
	 * Hide the shape menu
	 */
	hide: function() {

		this.buttons.each(function(button){
			button.hide();
		});

		this.isVisible = false;
		//this.bounds = undefined;
		//this.shape = undefined;
	},

	hoverAlignContainer: function(align, evt) {
		this.buttons.each(function(button){
			if(button.align == align) button.showOpaque();
		});
	},
	
	resetAlignContainer: function(align, evt) {
		this.buttons.each(function(button){
			if(button.align == align) button.showTransparent();
		});
	},
	
	isHover: function() {
		return 	this.buttons.any(function(value){
					return value.isHover();
				});
	},
	
	getWillShowButtons: function() {
		return this.buttons.findAll(function(value){return value.willShow});
	},
	
	/**
	 * Returns a set on buttons for that align value
	 * @params {String} align
	 * @params {String} group
	 */
	getButtons: function(align, group){
		return this.getWillShowButtons().findAll(function(b){ return b.align == align && (group === undefined || b.group == group)})
	},
	
	/**
	 * Set the number of buttons to display on each level of the shape menu in the specified align group.
	 * Example: setNumberOfButtonsPerLevel(ORYX.CONFIG.SHAPEMENU_RIGHT, 2) causes that the buttons of the right align group 
	 * will be rendered in 2 rows.
	 */
	setNumberOfButtonsPerLevel: function(align, number) {
		this.numberOfButtonsPerLevel[align] = number;
	},
	
	/**
	 * Returns the number of buttons to display on each level of the shape menu in the specified align group.
	 * Default value is 1
	 */
	getNumberOfButtonsPerLevel: function(align) {
		if(this.numberOfButtonsPerLevel[align])
			return Math.min(this.getButtons(align,0).length, this.numberOfButtonsPerLevel[align]);
		else
			return 1;
	}

}
ORYX.Plugins.ShapeMenu = Clazz.extend(ORYX.Plugins.ShapeMenu);

ORYX.Plugins.ShapeMenuButton = {
	
	/**
	 * Constructor
	 * @param option A key map specifying the configuration options:
	 * 					id: 	(String) The id of the parent DOM element for the new button
	 * 					icon: 	(String) The url to the icon of the button
	 * 					msg:	(String) A tooltip message
	 * 					caption:(String) The caption of the button (attention: button width > 22, only set for single column button layouts)
	 * 					align:	(String) The direction in which the button is aligned
	 * 					group: 	(Integer) The button group in the specified alignment 
	 * 							(buttons in the same group will be aligned side by side)
	 * 					callback:		(Function) A callback that is executed when the button is clicked
	 * 					dragcallback:	(Function) A callback that is executed when the button is dragged
	 * 					hovercallback:	(Function) A callback that is executed when the button is hovered
	 * 					resetcallback:	(Function) A callback that is executed when the button is reset
	 * 					arguments:		(Array) An argument array to pass to the callback functions
	 */
	construct: function(option) {

		if(option) {
			this.option = option;
			if(!this.option.arguments)
				this.option.arguments = [];
		} else {
			//TODO error
		}

		this.parentId = this.option.id ? this.option.id : null;

		// graft the button.
		var buttonClassName = this.option.caption ? "Oryx_button_with_caption" : "Oryx_button";
		this.node = ORYX.Editor.graft("http://www.w3.org/1999/xhtml", $(this.parentId),
			['div', {'class':buttonClassName}]);

		var imgOptions = {src:this.option.icon};
		if(this.option.msg){
			imgOptions.title = this.option.msg;
		}
		
		// graft and update icon (not in grafting for ns reasons).
		//TODO Enrich graft()-function to do this in one of the above steps.
		if(this.option.icon)
			ORYX.Editor.graft("http://www.w3.org/1999/xhtml", this.node,
				['img', imgOptions]);
		
		if(this.option.caption) {
			var captionNode = ORYX.Editor.graft("http://www.w3.org/1999/xhtml", this.node, ['span']);
			ORYX.Editor.graft("http://www.w3.org/1999/xhtml", captionNode, this.option.caption);
		}

		var onBubble = false;

		this.node.addEventListener(ORYX.CONFIG.EVENT_MOUSEOVER, this.hover.bind(this), onBubble);
		this.node.addEventListener(ORYX.CONFIG.EVENT_MOUSEOUT, this.reset.bind(this), onBubble);
		this.node.addEventListener(ORYX.CONFIG.EVENT_MOUSEDOWN, this.activate.bind(this), onBubble);
		this.node.addEventListener(ORYX.CONFIG.EVENT_MOUSEUP, this.hover.bind(this), onBubble);
		this.node.addEventListener('click', this.trigger.bind(this), onBubble);
		this.node.addEventListener(ORYX.CONFIG.EVENT_MOUSEMOVE, this.move.bind(this), onBubble);

		this.align = this.option.align ? this.option.align : ORYX.CONFIG.SHAPEMENU_RIGHT;
		this.group = this.option.group ? this.option.group : 0;

		this.hide();

		this.dragStart 	= false;
		this.isVisible 	= false;
		this.willShow 	= false;
		this.resetTimer;
	},
	
	hide: function() {
		this.node.style.display = "none";
		this.isVisible = false;
	},

	show: function() {
		this.node.style.display = "";
		this.node.style.opacity = this.opacity;
		this.isVisible = true;
	},
	
	showOpaque: function() {
		this.node.style.opacity = 1.0;
	},
	
	showTransparent: function() {
		this.node.style.opacity = this.opacity;
	},
	
	prepareToShow: function() {
		this.willShow = true;
	},

	prepareToHide: function() {
		this.willShow = false;
		this.hide();
	},

	setPosition: function(x, y) {
		this.node.style.left = x + "px";
		this.node.style.top = y + "px";
	},
	
	setLevel: function(level) {
		if(level==0) this.opacity = 0.5;
		else if(level==1) this.opacity = 0.2;
		//else if(level==2) this.opacity = 0.1;
		else this.opacity = 0.0;
	},
	
	setChildWidth: function(width) {
		this.childNode.style.width = width + "px";
	},

	reset: function(evt) {
		// Delete the timeout for hiding
		window.clearTimeout( this.resetTimer )
		this.resetTimer = window.setTimeout( this.doReset.bind(this), 100)
		
		if(this.option.resetcallback) {
			this.option.arguments.push(evt);
			var state = this.option.resetcallback.apply(this, this.option.arguments);
			this.option.arguments.remove(evt);
		}
	},
	
	doReset: function() {
		
		if(this.node.hasClassName('Oryx_down'))
			this.node.removeClassName('Oryx_down');

		if(this.node.hasClassName('Oryx_hover'))
			this.node.removeClassName('Oryx_hover');

	},

	activate: function(evt) {
		this.node.addClassName('Oryx_down');
		//Event.stop(evt);
		this.dragStart = true;
	},

	isHover: function() {
		return this.node.hasClassName('Oryx_hover') ? true: false;
	},

	hover: function(evt) {
		// Delete the timeout for hiding
		window.clearTimeout( this.resetTimer )
		this.resetTimer = null;
		
		this.node.addClassName('Oryx_hover');
		this.dragStart = false;
		
		if(this.option.hovercallback) {
			this.option.arguments.push(evt);
			var state = this.option.hovercallback.apply(this, this.option.arguments);
			this.option.arguments.remove(evt);
		}
	},

	move: function(evt) {
		if(this.dragStart && this.option.dragcallback) {
			this.option.arguments.push(evt);
			var state = this.option.dragcallback.apply(this, this.option.arguments);
			this.option.arguments.remove(evt);
		}
	},

	trigger: function(evt) {
		if(this.option.callback) {
			//Event.stop(evt);
			this.option.arguments.push(evt);
			var state = this.option.callback.apply(this, this.option.arguments);
			this.option.arguments.remove(evt);
		}
		this.dragStart = false;
	},

	toString: function() {
		return "HTML-Button " + this.id;
	}
}
ORYX.Plugins.ShapeMenuButton = Clazz.extend(ORYX.Plugins.ShapeMenuButton);

//create command for undo/redo
ORYX.Plugins.ShapeMenuPlugin.CreateCommand = ORYX.Core.Command.extend({
	construct: function(option, currentReference, position, plugin){
		this.option = option;
		this.currentReference = currentReference;
		this.position = position;
		this.plugin = plugin;
		this.shape;
		this.edge;
		this.targetRefPos;
		this.sourceRefPos;
		/*
		 * clone options parameters
		 */
        this.connectedShape = option.connectedShape;
        this.connectingType = option.connectingType;
        this.namespace = option.namespace;
        this.type = option.type;
        this.containedStencil = option.containedStencil;
        this.parent = option.parent;
        this.currentReference = currentReference;
        this.shapeOptions = option.shapeOptions;
	},			
	execute: function(){
		
		var resume = false;
		
		if (this.shape) {
			if (this.shape instanceof ORYX.Core.Node) {
				this.parent.add(this.shape);
				if (this.edge) {
					this.plugin.facade.getCanvas().add(this.edge);
					this.edge.dockers.first().setDockedShape(this.connectedShape);
					this.edge.dockers.first().setReferencePoint(this.sourceRefPos);
					this.edge.dockers.last().setDockedShape(this.shape);
					this.edge.dockers.last().setReferencePoint(this.targetRefPos);
				}
				
				this.plugin.facade.setSelection([this.shape]);
				
			} else if (this.shape instanceof ORYX.Core.Edge) {
				this.plugin.facade.getCanvas().add(this.shape);
				this.shape.dockers.first().setDockedShape(this.connectedShape);
				this.shape.dockers.first().setReferencePoint(this.sourceRefPos);
			}
			resume = true;
		}
		else {
			this.shape = this.plugin.facade.createShape(this.option);
			this.edge = (!(this.shape instanceof ORYX.Core.Edge)) ? this.shape.getIncomingShapes().first() : undefined;
		}
		
		if (this.currentReference && this.position) {
			
			if (this.shape instanceof ORYX.Core.Edge) {
			
				if (!(this.currentReference instanceof ORYX.Core.Canvas)) {
					this.shape.dockers.last().setDockedShape(this.currentReference);
					
					// @deprecated It now uses simply the midpoint
					var upL = this.currentReference.absoluteXY();
					var refPos = {
						x: this.position.x - upL.x,
						y: this.position.y - upL.y
					};
					
					this.shape.dockers.last().setReferencePoint(this.currentReference.bounds.midPoint());
				}
				else {
					this.shape.dockers.last().bounds.centerMoveTo(this.position);
					//this.shape.dockers.last().update();
				}
				this.sourceRefPos = this.shape.dockers.first().referencePoint;
				this.targetRefPos = this.shape.dockers.last().referencePoint;
				
			} else if (this.edge){
				this.sourceRefPos = this.edge.dockers.first().referencePoint;
				this.targetRefPos = this.edge.dockers.last().referencePoint;
			}
		} else {
			var containedStencil = this.containedStencil;
			var connectedShape = this.connectedShape;
			var bc = connectedShape.bounds;
			var bs = this.shape.bounds;
			
			var pos = bc.center();
			if(containedStencil.defaultAlign()==="north") {
				pos.y -= (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET + (bs.height()/2);
			} else if(containedStencil.defaultAlign()==="northeast") {
				pos.x += (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.width()/2);
				pos.y -= (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.height()/2);
			} else if(containedStencil.defaultAlign()==="southeast") {
				pos.x += (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.width()/2);
				pos.y += (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.height()/2);
			} else if(containedStencil.defaultAlign()==="south") {
				pos.y += (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET + (bs.height()/2);
			} else if(containedStencil.defaultAlign()==="southwest") {
				pos.x -= (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.width()/2);
				pos.y += (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.height()/2);
			} else if(containedStencil.defaultAlign()==="west") {
				pos.x -= (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET + (bs.width()/2);
			} else if(containedStencil.defaultAlign()==="northwest") {
				pos.x -= (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.width()/2);
				pos.y -= (bc.height() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET_CORNER + (bs.height()/2);
			} else {
				pos.x += (bc.width() / 2) + ORYX.CONFIG.SHAPEMENU_CREATE_OFFSET + (bs.width()/2);
			}
			
			// Move shape to the new position
			this.shape.bounds.centerMoveTo(pos);
			
			// Move all dockers of a node to the position
			if (this.shape instanceof ORYX.Core.Node){
				(this.shape.dockers||[]).each(function(docker){
					docker.bounds.centerMoveTo(pos);
				})
			}
			
			//this.shape.update();
			this.position = pos;
			
			if (this.edge){
				this.sourceRefPos = this.edge.dockers.first().referencePoint;
				this.targetRefPos = this.edge.dockers.last().referencePoint;
			}
		}
		
		this.plugin.facade.getCanvas().update();
		this.plugin.facade.updateSelection();
		
		if (!resume) {
			// If there is a connected shape
			if (this.edge){
				// Try to layout it
				this.plugin.doLayout(this.edge);
			} else if (this.shape instanceof ORYX.Core.Edge){
				// Try to layout it
				this.plugin.doLayout(this.shape);
			}
		}

	},
	rollback: function(){
		this.plugin.facade.deleteShape(this.shape);
		if(this.edge) {
			this.plugin.facade.deleteShape(this.edge);
		}
		//this.currentParent.update();
		this.plugin.facade.setSelection(this.plugin.facade.getSelection().without(this.shape, this.edge));
	}
});/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/


if (!ORYX.Plugins) {
	ORYX.Plugins = new Object();
}

ORYX.Plugins.ShapeRepository = {

	facade: undefined,

	construct: function(facade) {
		this.facade = facade;
		this._currentParent;
		this._canContain = undefined;
		this._canAttach  = undefined;

		this.shapeList = new Ext.tree.TreeNode({
			
		});

		var panel = new Ext.tree.TreePanel({
            cls:'shaperepository',
			loader: new Ext.tree.TreeLoader(),
			root: this.shapeList,
			autoScroll:true,
			rootVisible: false,
			lines: false,
			anchors: '0, -30'
		});
		var region = this.facade.addToRegion("west", panel, ORYX.I18N.ShapeRepository.title);
	
		
		// Create a Drag-Zone for Drag'n'Drop
		var DragZone = new Ext.dd.DragZone(this.shapeList.getUI().getEl(), {shadow: !Ext.isMac});
		DragZone.afterDragDrop = this.drop.bind(this, DragZone);
		DragZone.beforeDragOver = this.beforeDragOver.bind(this, DragZone);
		DragZone.beforeDragEnter = function(){this._lastOverElement = false; return true}.bind(this);
		
		// Load all Stencilssets
		this.setStencilSets();
		
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_STENCIL_SET_LOADED, this.setStencilSets.bind(this));

	},
	
	
	/**
	 * Load all stencilsets in the shaperepository
	 */
	setStencilSets: function() {
		// Remove all childs
		var child = this.shapeList.firstChild;
		while(child) {
			this.shapeList.removeChild(child);
			child = this.shapeList.firstChild;
		}

		ORYX.Log.info("stencilsets " + this.facade.getStencilSets());
		
		// Go thru all Stencilsets and stencils
		this.facade.getStencilSets().values().each((function(sset) {
			
			// For each Stencilset create and add a new Tree-Node
			var stencilSetNode;
			
			var typeTitle = sset.title();
			
			this.shapeList.appendChild(stencilSetNode = new Ext.tree.TreeNode({
				text:typeTitle, // Stencilset Name
				allowDrag:false,
				allowDrop:false,
				iconCls:'headerShapeRepImg',
				cls:'headerShapeRep',
				singleClickExpand:true}));
			
			ORYX.Log.info("stencilSetNode " + stencilSetNode.text);
			
			this.shapeList.appendChild(stencilSetNode);
			
			stencilSetNode.render();
			stencilSetNode.expand();				
			// Get Stencils from Stencilset
			var stencils = sset.stencils(this.facade.getCanvas().getStencil(),
										 this.facade.getRules());	
			var treeGroups = new Hash();
			
			// Sort the stencils according to their position and add them to the repository
			stencils = stencils.sortBy(function(value) { return value.position(); } );
			stencils.each((function(value) {
				
				// Show stencils in no group if there is less than 10 shapes
				//if(stencils.length <= ORYX.CONFIG.MAX_NUM_SHAPES_NO_GROUP) {
				//	this.createStencilTreeNode(stencilSetNode, value);	
				//	return;					
				//}
				
				// Get the groups name
				var groups = value.groups();
				
				// For each Group-Entree
				groups.each((function(group) {
					
					// If there is a new group
					if(!treeGroups[group]) {
						// Create a new group
						treeGroups[group] = new Ext.tree.TreeNode({
							text:group,					// Group-Name
							allowDrag:false,
        					allowDrop:false,            
							iconCls:'headerShapeRepImg', // Css-Class for Icon
				            cls:'headerShapeRepChild',  // CSS-Class for Stencil-Group
							singleClickExpand:true});
						
						// Add the Group to the ShapeRepository
						stencilSetNode.appendChild(treeGroups[group]);
						treeGroups[group].render();	
					}
					
					// Create the Stencil-Tree-Node
					this.createStencilTreeNode(treeGroups[group], value);	
					
				}).bind(this));
				
				
				// If there is no group
				if(groups.length == 0) {
					// Create the Stencil-Tree-Node
					this.createStencilTreeNode(stencilSetNode, value);						
				}
	
			}).bind(this));
		}).bind(this));	
	},

	createStencilTreeNode: function(parentTreeNode, stencil) {

		// Create and add the Stencil to the Group
		var newElement = new Ext.tree.TreeNode({
				text:		stencil.title(), 		// Text of the stencil
				icon:		stencil.icon(),			// Icon of the stencil
				allowDrag:	false,					// Don't use the Drag and Drop of Ext-Tree
				allowDrop:	false,
				iconCls:	'ShapeRepEntreeImg', 	// CSS-Class for Icon
				cls:		'ShapeRepEntree'		// CSS-Class for the Tree-Entree
				});

		parentTreeNode.appendChild(newElement);		
		newElement.render();	
				
		var ui = newElement.getUI();
		
		// Set the tooltip
		ui.elNode.setAttributeNS(null, "title", stencil.description());
		
		// Register the Stencil on Drag and Drop
		Ext.dd.Registry.register(ui.elNode, {
				node: 		ui.node,
		        handles: 	[ui.elNode, ui.textNode].concat($A(ui.elNode.childNodes)), // Set the Handles
		        isHandle: 	false,
				type:		stencil.id(),			// Set Type of stencil 
				namespace:	stencil.namespace()		// Set Namespace of stencil
				});
								
	},
	
	drop: function(dragZone, target, event) {
		
		this._lastOverElement = undefined;
		
		// Hide the highlighting
		this.facade.raiseEvent({type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE, highlightId:'shapeRepo.added'});
		this.facade.raiseEvent({type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE, highlightId:'shapeRepo.attached'});
		
		// Check if drop is allowed
		var proxy = dragZone.getProxy()
		if(proxy.dropStatus == proxy.dropNotAllowed) { return }
		
		// Check if there is a current Parent
		if(!this._currentParent) { return }
		
		var option = Ext.dd.Registry.getHandle(target.DDM.currentTarget);
		
		var xy = event.getXY();
		var pos = {x: xy[0], y: xy[1]};

		var a = this.facade.getCanvas().node.getScreenCTM();

		// Correcting the UpperLeft-Offset
		pos.x -= a.e; pos.y -= a.f;
		// Correcting the Zoom-Faktor
		pos.x /= a.a; pos.y /= a.d;
		// Correting the ScrollOffset
		pos.x -= document.documentElement.scrollLeft;
		pos.y -= document.documentElement.scrollTop;
		// Correct position of parent
		var parentAbs = this._currentParent.absoluteXY();
		pos.x -= parentAbs.x;
		pos.y -= parentAbs.y;

		// Set position
		option['position'] = pos
		
		// Set parent
		if( this._canAttach &&  this._currentParent instanceof ORYX.Core.Node ){
			option['parent'] = undefined;	
		} else {
			option['parent'] = this._currentParent;
		}
		
		
		var commandClass = ORYX.Core.Command.extend({
			construct: function(option, currentParent, canAttach, position, facade){
				this.option = option;
				this.currentParent = currentParent;
				this.canAttach = canAttach;
				this.position = position;
				this.facade = facade;
				this.selection = this.facade.getSelection();
				this.shape;
				this.parent;
			},			
			execute: function(){
				if (!this.shape) {
					this.shape 	= this.facade.createShape(option);
					this.parent = this.shape.parent;
				} else {
					this.parent.add(this.shape);
				}
					
				
				
				if( this.canAttach &&  this.currentParent instanceof ORYX.Core.Node && this.shape.dockers.length > 0){
					
					var docker = this.shape.dockers[0];
		
					if( this.currentParent.parent instanceof ORYX.Core.Node ) {
						this.currentParent.parent.add( docker.parent );
					}
												
					docker.bounds.centerMoveTo( this.position );
					docker.setDockedShape( this.currentParent );
					//docker.update();	
				}
		
				//this.currentParent.update();
				//this.shape.update();

				this.facade.setSelection([this.shape]);
				this.facade.getCanvas().update();
				this.facade.updateSelection();
				
			},
			rollback: function(){
				this.facade.deleteShape(this.shape);
				
				//this.currentParent.update();

				this.facade.setSelection(this.selection.without(this.shape));
				this.facade.getCanvas().update();
				this.facade.updateSelection();
				
			}
		});
							
		var position = this.facade.eventCoordinates( event.browserEvent );	
					
		var command = new commandClass(option, this._currentParent, this._canAttach, position, this.facade);
		
		this.facade.executeCommands([command]);
		
		this._currentParent = undefined;
	},

	beforeDragOver: function(dragZone, target, event){

		var coord = this.facade.eventCoordinates(event.browserEvent);
		var aShapes = this.facade.getCanvas().getAbstractShapesAtPosition( coord );

		if(aShapes.length <= 0) {
			
				var pr = dragZone.getProxy();
				pr.setStatus(pr.dropNotAllowed);
				pr.sync();
				
				return false;
		}	
		
		var el = aShapes.last();
	
		
		if(aShapes.lenght == 1 && aShapes[0] instanceof ORYX.Core.Canvas) {
			
			return false;
			
		} else {
			// check containment rules
			var option = Ext.dd.Registry.getHandle(target.DDM.currentTarget);

			var stencilSet = this.facade.getStencilSets()[option.namespace];

			var stencil = stencilSet.stencil(option.type);

			if(stencil.type() === "node") {
				
				var parentCandidate = aShapes.reverse().find(function(candidate) {
					return (candidate instanceof ORYX.Core.Canvas 
							|| candidate instanceof ORYX.Core.Node
							|| candidate instanceof ORYX.Core.Edge);
				});
				
				if(  parentCandidate !== this._lastOverElement){
					
					this._canAttach  = undefined;
					this._canContain = undefined;
					
				}
				
				if( parentCandidate ) {
					//check containment rule					
						
					if (!(parentCandidate instanceof ORYX.Core.Canvas) && parentCandidate.isPointOverOffset(coord.x, coord.y) && this._canAttach == undefined) {
					
						this._canAttach = this.facade.getRules().canConnect({
												sourceShape: parentCandidate,
												edgeStencil: stencil,
												targetStencil: stencil
											});
						
						if( this._canAttach ){
							// Show Highlight
							this.facade.raiseEvent({
								type: ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW,
								highlightId: "shapeRepo.attached",
								elements: [parentCandidate],
								style: ORYX.CONFIG.SELECTION_HIGHLIGHT_STYLE_RECTANGLE,
								color: ORYX.CONFIG.SELECTION_VALID_COLOR
							});
							
							this.facade.raiseEvent({
								type: ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
								highlightId: "shapeRepo.added"
							});
							
							this._canContain	= undefined;
						} 					
						
					}
					
					if(!(parentCandidate instanceof ORYX.Core.Canvas) && !parentCandidate.isPointOverOffset(coord.x, coord.y)){
						this._canAttach 	= this._canAttach == false ? this._canAttach : undefined;						
					}
					
					if( this._canContain == undefined && !this._canAttach) {
											
						this._canContain = this.facade.getRules().canContain({
															containingShape:parentCandidate, 
															containedStencil:stencil
															});
															
						// Show Highlight
						this.facade.raiseEvent({
															type:		ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW, 
															highlightId:'shapeRepo.added',
															elements:	[parentCandidate],
															color:		this._canContain ? ORYX.CONFIG.SELECTION_VALID_COLOR : ORYX.CONFIG.SELECTION_INVALID_COLOR
														});	
						this.facade.raiseEvent({
															type: 		ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
															highlightId:"shapeRepo.attached"
														});						
					}
						
				
					
					this._currentParent = this._canContain || this._canAttach ? parentCandidate : undefined;
					this._lastOverElement = parentCandidate;
					var pr = dragZone.getProxy();
					pr.setStatus(this._currentParent ? pr.dropAllowed : pr.dropNotAllowed );
					pr.sync();
	
				} 
			} else { //Edge
				this._currentParent = this.facade.getCanvas();
				var pr = dragZone.getProxy();
				pr.setStatus(pr.dropAllowed);
				pr.sync();
			}		
		}
		
		
		return false
	}	
}

ORYX.Plugins.ShapeRepository = Clazz.extend(ORYX.Plugins.ShapeRepository);

/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/


if(!ORYX.Plugins) {
	ORYX.Plugins = new Object();
}

ORYX.Plugins.PropertyWindow = {

	facade: undefined,

	construct: function(facade) {
		// Reference to the Editor-Interface
		this.facade = facade;

		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_SHOW_PROPERTYWINDOW, this.init.bind(this));
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_LOADED, this.selectDiagram.bind(this));
		this.init();
	},
	
	init: function(){

		// The parent div-node of the grid
		this.node = ORYX.Editor.graft("http://www.w3.org/1999/xhtml",
			null,
			['div']);

		// If the current property in focus is of type 'Date', the date format
		// is stored here.
		this.currentDateFormat;

		// the properties array
		this.popularProperties = [];
		this.properties = [];
		
		/* The currently selected shapes whos properties will shown */
		this.shapeSelection = new Hash();
		this.shapeSelection.shapes = new Array();
		this.shapeSelection.commonProperties = new Array();
		this.shapeSelection.commonPropertiesValues = new Hash();
		
		this.updaterFlag = false;

		// creating the column model of the grid.
		this.columnModel = new Ext.grid.ColumnModel([
			{
				//id: 'name',
				header: ORYX.I18N.PropertyWindow.name,
				dataIndex: 'name',
				width: 90,
				sortable: true,
				renderer: this.tooltipRenderer.bind(this)
			}, {
				//id: 'value',
				header: ORYX.I18N.PropertyWindow.value,
				dataIndex: 'value',
				id: 'propertywindow_column_value',
				width: 110,
				editor: new Ext.form.TextField({
					allowBlank: false
				}),
				renderer: this.renderer.bind(this)
			},
			{
				header: "Pop",
				dataIndex: 'popular',
				hidden: true,
				sortable: true
			}
		]);

		// creating the store for the model.
        this.dataSource = new Ext.data.GroupingStore({
			proxy: new Ext.data.MemoryProxy(this.properties),
			reader: new Ext.data.ArrayReader({}, [
				{name: 'popular'},
				{name: 'name'},
				{name: 'value'},
				{name: 'icons'},
				{name: 'gridProperties'}
			]),
			sortInfo: {field: 'popular', direction: "ASC"},
			sortData : function(f, direction){
		        direction = direction || 'ASC';
		        var st = this.fields.get(f).sortType;
		        var fn = function(r1, r2){
		            var v1 = st(r1.data[f]), v2 = st(r2.data[f]);
					var p1 = r1.data['popular'], p2  = r2.data['popular'];
		            return p1 && !p2 ? -1 : (!p1 && p2 ? 1 : (v1 > v2 ? 1 : (v1 < v2 ? -1 : 0)));
		        };
		        this.data.sort(direction, fn);
		        if(this.snapshot && this.snapshot != this.data){
		            this.snapshot.sort(direction, fn);
				}
		    },
			groupField: 'popular'
        });
		this.dataSource.load();
		
		this.grid = new Ext.grid.EditorGridPanel({
			clicksToEdit: 1,
			stripeRows: true,
			autoExpandColumn: "propertywindow_column_value",
			width:'auto',
			// the column model
			colModel: this.columnModel,
			enableHdMenu: false,
			view: new Ext.grid.GroupingView({
				forceFit: true,
				groupTextTpl: '{[values.rs.first().data.popular ? ORYX.I18N.PropertyWindow.oftenUsed : ORYX.I18N.PropertyWindow.moreProps]}'
			}),
			
			// the data store
			store: this.dataSource
			
		});

		region = this.facade.addToRegion('east', new Ext.Panel({
			width: 220,
			layout: "fit",
			border: false,
			title: 'Properties',
			items: [
				this.grid 
			]
		}), ORYX.I18N.PropertyWindow.title)

		// Register on Events
		this.grid.on('beforeedit', this.beforeEdit, this, true);
		this.grid.on('afteredit', this.afterEdit, this, true);
		this.grid.view.on('refresh', this.hideMoreAttrs, this, true);
		
		//this.grid.on(ORYX.CONFIG.EVENT_KEYDOWN, this.keyDown, this, true);
		
		// Renderer the Grid
		this.grid.enableColumnMove = false;
		//this.grid.render();

		// Sort as Default the first column
		//this.dataSource.sort('name');

	},
	
	// Select the Canvas when the editor is ready
	selectDiagram: function() {
		this.shapeSelection.shapes = [this.facade.getCanvas()];
		
		this.setPropertyWindowTitle();
		this.identifyCommonProperties();
		this.createProperties();
	},

	specialKeyDown: function(field, event) {
		// If there is a TextArea and the Key is an Enter
		if(field instanceof Ext.form.TextArea && event.button == ORYX.CONFIG.KEY_Code_enter) {
			// Abort the Event
			return false
		}
	},
	tooltipRenderer: function(value, p, record) {
		/* Prepare tooltip */
		p.cellAttr = 'title="' + record.data.gridProperties.tooltip + '"';
		return value;
	},
	
	renderer: function(value, p, record) {
		
		this.tooltipRenderer(value, p, record);
				
		if(value instanceof Date) {
			// TODO: Date-Schema is not generic
			value = value.dateFormat(ORYX.I18N.PropertyWindow.dateFormat);
		} else if(String(value).search("<a href='") < 0) {
			// Shows the Value in the Grid in each Line
			value = String(value).gsub("<", "&lt;");
			value = String(value).gsub(">", "&gt;");
			value = String(value).gsub("%", "&#37;");
			value = String(value).gsub("&", "&amp;");

			if(record.data.gridProperties.type == ORYX.CONFIG.TYPE_COLOR) {
				value = "<div class='prop-background-color' style='background-color:" + value + "' />";
			}			

			record.data.icons.each(function(each) {
				if(each.name == value) {
					if(each.icon) {
						value = "<img src='" + each.icon + "' /> " + value;
					}
				}
			});
		}

		return value;
	},

	beforeEdit: function(option) {

		var editorGrid 		= this.dataSource.getAt(option.row).data.gridProperties.editor;
		var editorRenderer 	= this.dataSource.getAt(option.row).data.gridProperties.renderer;

		if(editorGrid) {
			// Disable KeyDown
			this.facade.disableEvent(ORYX.CONFIG.EVENT_KEYDOWN);

			option.grid.getColumnModel().setEditor(1, editorGrid);
			
			editorGrid.field.row = option.row;
			// Render the editor to the grid, therefore the editor is also available 
			// for the first and last row
			editorGrid.render(this.grid);
			
			//option.grid.getColumnModel().setRenderer(1, editorRenderer);
			editorGrid.setSize(option.grid.getColumnModel().getColumnWidth(1), editorGrid.height);
		} else {
			return false;
		}
		
		var key = this.dataSource.getAt(option.row).data.gridProperties.propId;
		
		this.oldValues = new Hash();
		this.shapeSelection.shapes.each(function(shape){
			this.oldValues[shape.getId()] = shape.properties[key];
		}.bind(this)); 
	},

	afterEdit: function(option) {
		//Ext1.0: option.grid.getDataSource().commitChanges();
		option.grid.getStore().commitChanges();

		var key 			 = option.record.data.gridProperties.propId;
		var selectedElements = this.shapeSelection.shapes;
		
		var oldValues 	= this.oldValues;	
		
		var newValue	= option.value;
		var facade		= this.facade;
		

		// Implement the specific command for property change
		var commandClass = ORYX.Core.Command.extend({
			construct: function(){
				this.key 		= key;
				this.selectedElements = selectedElements;
				this.oldValues = oldValues;
				this.newValue 	= newValue;
				this.facade		= facade;
			},			
			execute: function(){
				this.selectedElements.each(function(shape){
					if(!shape.getStencil().property(this.key).readonly()) {
						shape.setProperty(this.key, this.newValue);
					}
				}.bind(this));
				this.facade.setSelection(this.selectedElements);
				this.facade.getCanvas().update();
				this.facade.updateSelection();
			},
			rollback: function(){
				this.selectedElements.each(function(shape){
					shape.setProperty(this.key, this.oldValues[shape.getId()]);
				}.bind(this));
				this.facade.setSelection(this.selectedElements);
				this.facade.getCanvas().update();
				this.facade.updateSelection();
			}
		})		
		// Instanciated the class
		var command = new commandClass();
		
		// Execute the command
		this.facade.executeCommands([command]);


		// extended by Kerstin (start)
//
		this.facade.raiseEvent({
			type 		: ORYX.CONFIG.EVENT_PROPWINDOW_PROP_CHANGED, 
			elements	: selectedElements,
			key			: key,
			value		: option.value
		});
		// extended by Kerstin (end)
	},
	
	// Changes made in the property window will be shown directly
	editDirectly:function(key, value){
		
		this.shapeSelection.shapes.each(function(shape){
			if(!shape.getStencil().property(key).readonly()) {
				shape.setProperty(key, value);
				//shape.update();
			}
		}.bind(this));
		
		/* Propagate changed properties */
		var selectedElements = this.shapeSelection.shapes;
		
		this.facade.raiseEvent({
			type 		: ORYX.CONFIG.EVENT_PROPWINDOW_PROP_CHANGED, 
			elements	: selectedElements,
			key			: key,
			value		: value
		});

		this.facade.getCanvas().update();
		
	},
	
	// if a field becomes invalid after editing the shape must be restored to the old value
	updateAfterInvalid : function(key) {
		this.shapeSelection.shapes.each(function(shape) {
			if(!shape.getStencil().property(key).readonly()) {
				shape.setProperty(key, this.oldValues[shape.getId()]);
				shape.update();
			}
		}.bind(this));
		
		this.facade.getCanvas().update();
	},

	// extended by Kerstin (start)	
	dialogClosed: function(data) {
		var row = this.field ? this.field.row : this.row 
		this.scope.afterEdit({
			grid:this.scope.grid, 
			record:this.scope.grid.getStore().getAt(row), 
			//value:this.scope.grid.getStore().getAt(this.row).get("value")
			value: data
		})
		// reopen the text field of the complex list field again
		this.scope.grid.startEditing(row, this.col);
	},
	// extended by Kerstin (end)
	
	/**
	 * Changes the title of the property window panel according to the selected shapes.
	 */
	setPropertyWindowTitle: function() {
		if(this.shapeSelection.shapes.length == 1) {
			// add the name of the stencil of the selected shape to the title
				region.setTitle(ORYX.I18N.PropertyWindow.title +' ('+this.shapeSelection.shapes.first().getStencil().title()+')' );
		} else {
			region.setTitle(ORYX.I18N.PropertyWindow.title +' ('
							+ this.shapeSelection.shapes.length
							+ ' '
							+ ORYX.I18N.PropertyWindow.selected 
							+')');
		}
	},
	/**
	 * Sets this.shapeSelection.commonPropertiesValues.
	 * If the value for a common property is not equal for each shape the value
	 * is left empty in the property window.
	 */
	setCommonPropertiesValues: function() {
		this.shapeSelection.commonPropertiesValues = new Hash();
		this.shapeSelection.commonProperties.each(function(property){
			var key = property.prefix() + "-" + property.id();
			var emptyValue = false;
			var firstShape = this.shapeSelection.shapes.first();
			
			this.shapeSelection.shapes.each(function(shape){
				if(firstShape.properties[key] != shape.properties[key]) {
					emptyValue = true;
				}
			}.bind(this));
			
			/* Set property value */
			if(!emptyValue) {
				this.shapeSelection.commonPropertiesValues[key]
					= firstShape.properties[key];
			}
		}.bind(this));
	},
	
	/**
	 * Returns the set of stencils used by the passed shapes.
	 */
	getStencilSetOfSelection: function() {
		var stencils = new Hash();
		
		this.shapeSelection.shapes.each(function(shape) {
			stencils[shape.getStencil().id()] = shape.getStencil();
		})
		return stencils;
	},
	
	/**
	 * Identifies the common Properties of the selected shapes.
	 */
	identifyCommonProperties: function() {
		this.shapeSelection.commonProperties.clear();
		
		/* 
		 * A common property is a property, that is part of 
		 * the stencil definition of the first and all other stencils.
		 */
		var stencils = this.getStencilSetOfSelection();
		var firstStencil = stencils.values().first();
		var comparingStencils = stencils.values().without(firstStencil);
		
		
		if(comparingStencils.length == 0) {
			this.shapeSelection.commonProperties = firstStencil.properties();
		} else {
			var properties = new Hash();
			
			/* put all properties of on stencil in a Hash */
			firstStencil.properties().each(function(property){
				properties[property.namespace() + '-' + property.id() 
							+ '-' + property.type()] = property;
			});
			
			/* Calculate intersection of properties. */
			
			comparingStencils.each(function(stencil){
				var intersection = new Hash();
				stencil.properties().each(function(property){
					if(properties[property.namespace() + '-' + property.id()
									+ '-' + property.type()]){
						intersection[property.namespace() + '-' + property.id()
										+ '-' + property.type()] = property;
					}
				});
				properties = intersection;	
			});
			
			this.shapeSelection.commonProperties = properties.values();
		}
	},
	
	onSelectionChanged: function(event) {
		/* Event to call afterEdit method */
		this.grid.stopEditing();
		
		/* Selected shapes */
		this.shapeSelection.shapes = event.elements;
		
		/* Case: nothing selected */
		if(event.elements.length == 0) {
			this.shapeSelection.shapes = [this.facade.getCanvas()];
		}
		
		/* subselection available */
		if(event.subSelection){
			this.shapeSelection.shapes = [event.subSelection];
		}
		
		this.setPropertyWindowTitle();
		this.identifyCommonProperties();
		this.setCommonPropertiesValues();
		
		// Create the Properties
		
		this.createProperties();
	},
	
	/**
	 * Creates the properties for the ExtJS-Grid from the properties of the
	 * selected shapes.
	 */
	createProperties: function() {
		this.properties = [];
		this.popularProperties = [];

		if(this.shapeSelection.commonProperties) {
			
			// add new property lines
			this.shapeSelection.commonProperties.each((function(pair, index) {

				var key = pair.prefix() + "-" + pair.id();
				
				// Get the property pair
				var name		= pair.title();
				var icons		= [];
				var attribute	= this.shapeSelection.commonPropertiesValues[key];
				
				var editorGrid = undefined;
				var editorRenderer = null;

				if(!pair.readonly()){
					switch(pair.type()) {
						case ORYX.CONFIG.TYPE_STRING:
							// If the Text is MultiLine
							if(pair.wrapLines()) {
								// Set the Editor as TextArea
								var editorTextArea = new Ext.form.TextArea({alignment: "tl-tl", allowBlank: pair.optional(),  msgTarget:'title', maxLength:pair.length()});
								editorTextArea.on('keyup', function(textArea, event) {
									this.editDirectly(key, textArea.getValue());
								}.bind(this));								
								
								editorGrid = new Ext.Editor(editorTextArea);
							} else {
								// If not, set the Editor as InputField
								var editorInput = new Ext.form.TextField({allowBlank: pair.optional(),  msgTarget:'title', maxLength:pair.length()});
								editorInput.on('keyup', function(input, event) {
									this.editDirectly(key, input.getValue());
								}.bind(this));
								
								// reverts the shape if the editor field is invalid
								editorInput.on('blur', function(input) {
									if(!input.isValid(false))
										this.updateAfterInvalid(key);
								}.bind(this));
								
								editorInput.on("specialkey", function(input, e) {
									if(!input.isValid(false))
										this.updateAfterInvalid(key);
								}.bind(this));
								
								editorGrid = new Ext.Editor(editorInput);
							}
							break;
						case ORYX.CONFIG.TYPE_BOOLEAN:
							// Set the Editor as a CheckBox
							var editorCheckbox = new Ext.form.Checkbox();
							editorCheckbox.on('check', function(c,checked) {
								this.editDirectly(key, checked);
							}.bind(this));
							
							editorGrid = new Ext.Editor(editorCheckbox);
							break;
						case ORYX.CONFIG.TYPE_INTEGER:
							// Set as an Editor for Integers
							var numberField = new Ext.form.NumberField({allowBlank: pair.optional(), allowDecimals:false, msgTarget:'title', minValue: pair.min(), maxValue: pair.max()});
							numberField.on('keyup', function(input, event) {
								this.editDirectly(key, input.getValue());
							}.bind(this));							
							
							editorGrid = new Ext.Editor(numberField);
							break;
						case ORYX.CONFIG.TYPE_FLOAT:
							// Set as an Editor for Float
							var numberField = new Ext.form.NumberField({ allowBlank: pair.optional(), allowDecimals:true, msgTarget:'title', minValue: pair.min(), maxValue: pair.max()});
							numberField.on('keyup', function(input, event) {
								this.editDirectly(key, input.getValue());
							}.bind(this));
							
							editorGrid = new Ext.Editor(numberField);

							break;
						case ORYX.CONFIG.TYPE_COLOR:
							// Set as a ColorPicker
							// Ext1.0 editorGrid = new gEdit(new form.ColorField({ allowBlank: pair.optional(),  msgTarget:'title' }));

							var editorPicker = new Ext.ux.ColorField({ allowBlank: pair.optional(),  msgTarget:'title', facade: this.facade });
							
							/*this.facade.registerOnEvent(ORYX.CONFIG.EVENT_COLOR_CHANGE, function(option) {
								this.editDirectly(key, option.value);
							}.bind(this));*/
							
							editorGrid = new Ext.Editor(editorPicker);

							break;
						case ORYX.CONFIG.TYPE_CHOICE:
							var items = pair.items();
													
							var options = [];
							items.each(function(value) {
								if(value.value() == attribute)
									attribute = value.title();
																
								options.push([value.icon(), value.title(), value.value()]);
															
								icons.push({
									name: value.title(),
									icon: value.icon()
								});
							});
							
							var store = new Ext.data.SimpleStore({
						        fields: [{name: 'icon'},
									{name: 'title'},
									{name: 'value'}	],
						        data : options // from states.js
						    });
							
							// Set the grid Editor

						    var editorCombo = new Ext.form.ComboBox({
								tpl: '<tpl for="."><div class="x-combo-list-item">{[(values.icon) ? "<img src=\'" + values.icon + "\' />" : ""]} {title}</div></tpl>',
						        store: store,
						        displayField:'title',
								valueField: 'value',
						        typeAhead: true,
						        mode: 'local',
						        triggerAction: 'all',
						        selectOnFocus:true
						    });
								
							editorCombo.on('select', function(combo, record, index) {
								this.editDirectly(key, combo.getValue());
							}.bind(this))
							
							editorGrid = new Ext.Editor(editorCombo);

							break;
						case ORYX.CONFIG.TYPE_DATE:
							var currFormat = ORYX.I18N.PropertyWindow.dateFormat
							if(!(attribute instanceof Date))
								attribute = Date.parseDate(attribute, currFormat)
							editorGrid = new Ext.Editor(new Ext.form.DateField({ allowBlank: pair.optional(), format:currFormat,  msgTarget:'title'}));
							break;

						case ORYX.CONFIG.TYPE_TEXT:
							
							var cf = new Ext.form.ComplexTextField({
								allowBlank: pair.optional(),
								dataSource:this.dataSource,
								grid:this.grid,
								row:index,
								facade:this.facade
							});
							cf.on('dialogClosed', this.dialogClosed, {scope:this, row:index, col:1,field:cf});							
							editorGrid = new Ext.Editor(cf);
							break;
						
						case ORYX.CONFIG.TYPE_MODEL_LINK:
							var cf = new Ext.form.ComplexModelLinkField({
								allowBlank: pair.optional(),
								dataSource:this.dataSource,
								grid:this.grid,
								row:index,
								facade:this.facade
							});
							cf.on('dialogClosed', this.dialogClosed, {scope:this, row:index, col:1,field:cf});	
							editorGrid = new Ext.Editor(cf);
							break;
						
						case ORYX.CONFIG.TYPE_LISTENER:
							var cf = new Ext.form.ListenerDefinitionField({
								allowBlank: pair.optional(),
								dataSource:this.dataSource,
								grid:this.grid,
								row:index,
								facade:this.facade
							});
							cf.on('dialogClosed', this.dialogClosed, {scope:this, row:index, col:1,field:cf});	
							editorGrid = new Ext.Editor(cf);
							break;
							
						// extended by Kerstin (start)
						case ORYX.CONFIG.TYPE_COMPLEX:
							
							var cf = new Ext.form.ComplexListField({ allowBlank: pair.optional()}, pair.complexItems(), key, this.facade);
							cf.on('dialogClosed', this.dialogClosed, {scope:this, row:index, col:1,field:cf});							
							editorGrid = new Ext.Editor(cf);
							break;
						// extended by Kerstin (end)
						
						case ORYX.CONFIG.TYPE_MULTIPLECOMPLEX:
							
							var cf = new Ext.form.MultipleComplexListField({ allowBlank: pair.optional()}, pair.complexItems(), key, this.facade);
							cf.on('dialogClosed', this.dialogClosed, {scope:this, row:index, col:1,field:cf});							
							editorGrid = new Ext.Editor(cf);
							break;
							
						// extended by Gerardo (Start)
						case "CPNString":
							var editorInput = new Ext.form.TextField(
									{
										allowBlank: pair.optional(),
										msgTarget:'title', 
										maxLength:pair.length(), 
										enableKeyEvents: true
									});
							
							editorInput.on('keyup', function(input, event) {
								this.editDirectly(key, input.getValue());
								console.log(input.getValue());
								alert("huhu");
							}.bind(this));
							
							editorGrid = new Ext.Editor(editorInput);							
							break;
						// extended by Gerardo (End)
						
						default:
							var editorInput = new Ext.form.TextField({ allowBlank: pair.optional(),  msgTarget:'title', maxLength:pair.length(), enableKeyEvents: true});
							editorInput.on('keyup', function(input, event) {
								this.editDirectly(key, input.getValue());
							}.bind(this));
							
							editorGrid = new Ext.Editor(editorInput);
					}


					// Register Event to enable KeyDown
					editorGrid.on('beforehide', this.facade.enableEvent.bind(this, ORYX.CONFIG.EVENT_KEYDOWN));
					editorGrid.on('specialkey', this.specialKeyDown.bind(this));

				} else if(pair.type() === ORYX.CONFIG.TYPE_URL || pair.type() === ORYX.CONFIG.TYPE_DIAGRAM_LINK){
					attribute = String(attribute).search("http") !== 0 ? ("http://" + attribute) : attribute;
					attribute = "<a href='" + attribute + "' target='_blank'>" + attribute.split("://")[1] + "</a>"
				}
				
				// Push to the properties-array
				if(pair.visible()) {
					// Popular Properties are those which are set to be popular
					if (pair.popular()) {
						pair.setPopular();
					} 
					
					if(pair.popular()) {
						this.popularProperties.push([pair.popular(), name, attribute, icons, {
							editor: editorGrid,
							propId: key,
							type: pair.type(),
							tooltip: pair.description(),
							renderer: editorRenderer
						}]);
					}
					else {					
						this.properties.push([pair.popular(), name, attribute, icons, {
							editor: editorGrid,
							propId: key,
							type: pair.type(),
							tooltip: pair.description(),
							renderer: editorRenderer
						}]);
					}
				}

			}).bind(this));
		}

		this.setProperties();
	},
	
	hideMoreAttrs: function(panel) {
		// TODO: Implement the case that the canvas has no attributes
		if (this.properties.length <= 0){ return }
		
		// collapse the "more attr" group
		this.grid.view.toggleGroup(this.grid.view.getGroupId(this.properties[0][0]), false);
		
		// prevent the more attributes pane from closing after a attribute has been edited
		this.grid.view.un("refresh", this.hideMoreAttrs, this);
	},

	setProperties: function() {
		var props = this.popularProperties.concat(this.properties);
		
		this.dataSource.loadData(props);
	}
}
ORYX.Plugins.PropertyWindow = Clazz.extend(ORYX.Plugins.PropertyWindow);



/**
 * Editor for complex type
 * 
 * When starting to edit the editor, it creates a new dialog where new attributes
 * can be specified which generates json out of this and put this 
 * back to the input field.
 * 
 * This is implemented from Kerstin Pfitzner
 * 
 * @param {Object} config
 * @param {Object} items
 * @param {Object} key
 * @param {Object} facade
 */


Ext.form.ComplexListField = function(config, items, key, facade){
    Ext.form.ComplexListField.superclass.constructor.call(this, config);
	this.items 	= items;
	this.key 	= key;
	this.facade = facade;
};

/**
 * This is a special trigger field used for complex properties.
 * The trigger field opens a dialog that shows a list of properties.
 * The entered values will be stored as trigger field value in the JSON format.
 */
Ext.extend(Ext.form.ComplexListField, Ext.form.TriggerField,  {
	/**
     * @cfg {String} triggerClass
     * An additional CSS class used to style the trigger button.  The trigger will always get the
     * class 'x-form-trigger' and triggerClass will be <b>appended</b> if specified.
     */
    triggerClass:	'x-form-complex-trigger',
	readOnly:		true,
	emptyText: 		ORYX.I18N.PropertyWindow.clickIcon,
		
	/**
	 * Builds the JSON value from the data source of the grid in the dialog.
	 */
	buildValue: function() {
		var ds = this.grid.getStore();
		ds.commitChanges();
		
		if (ds.getCount() == 0) {
			return "";
		}
		
		var jsonString = "[";
		for (var i = 0; i < ds.getCount(); i++) {
			var data = ds.getAt(i);		
			jsonString += "{";	
			for (var j = 0; j < this.items.length; j++) {
				var key = this.items[j].id();
				jsonString += key + ':' + ("" + data.get(key)).toJSON();
				if (j < (this.items.length - 1)) {
					jsonString += ", ";
				}
			}
			jsonString += "}";
			if (i < (ds.getCount() - 1)) {
				jsonString += ", ";
			}
		}
		jsonString += "]";
		
		jsonString = "{'totalCount':" + ds.getCount().toJSON() + 
			", 'items':" + jsonString + "}";
		return Object.toJSON(jsonString.evalJSON());
	},
	
	/**
	 * Returns the field key.
	 */
	getFieldKey: function() {
		return this.key;
	},
	
	/**
	 * Returns the actual value of the trigger field.
	 * If the table does not contain any values the empty
	 * string will be returned.
	 */
    getValue : function(){
		// return actual value if grid is active
		if (this.grid) {
			return this.buildValue();			
		} else if (this.data == undefined) {
			return "";
		} else {
			return this.data;
		}
    },
	
	/**
	 * Sets the value of the trigger field.
	 * In this case this sets the data that will be shown in
	 * the grid of the dialog.
	 * 
	 * @param {Object} value The value to be set (JSON format or empty string)
	 */
	setValue: function(value) {	
		if (value.length > 0 && value.indexOf('<') == -1) {
			// set only if this.data not set yet
			// only to initialize the grid
			if (this.data == undefined) {
				this.data = value;
			}
		}
	},
	
	/**
	 * Returns false. In this way key events will not be propagated
	 * to other elements.
	 * 
	 * @param {Object} event The keydown event.
	 */
	keydownHandler: function(event) {
		return false;
	},
	
	/**
	 * The listeners of the dialog. 
	 * 
	 * If the dialog is hidded, a dialogClosed event will be fired.
	 * This has to be used by the parent element of the trigger field
	 * to reenable the trigger field (focus gets lost when entering values
	 * in the dialog).
	 */
    dialogListeners : {
        show : function(){ // retain focus styling
            this.onFocus();	
			this.facade.registerOnEvent(ORYX.CONFIG.EVENT_KEYDOWN, this.keydownHandler.bind(this));
			this.facade.disableEvent(ORYX.CONFIG.EVENT_KEYDOWN);
			return;
        },
        hide : function(){

            var dl = this.dialogListeners;
            this.dialog.un("show", dl.show,  this);
            this.dialog.un("hide", dl.hide,  this);
			
			this.dialog.destroy(true);
			this.grid.destroy(true);
			delete this.grid;
			delete this.dialog;
			
			this.facade.unregisterOnEvent(ORYX.CONFIG.EVENT_KEYDOWN, this.keydownHandler.bind(this));
			this.facade.enableEvent(ORYX.CONFIG.EVENT_KEYDOWN);
			
			// store data and notify parent about the closed dialog
			// parent has to handel this event and start editing the text field again
			this.fireEvent('dialogClosed', this.data);
			
			Ext.form.ComplexListField.superclass.setValue.call(this, this.data);
        }
    },	
	
	/**
	 * Builds up the initial values of the grid.
	 * 
	 * @param {Object} recordType The record type of the grid.
	 * @param {Object} items      The initial items of the grid (columns)
	 */
	buildInitial: function(recordType, items) {
		var initial = new Hash();
		
		for (var i = 0; i < items.length; i++) {
			var id = items[i].id();
			initial[id] = items[i].value();
		}
		
		var RecordTemplate = Ext.data.Record.create(recordType);
		return new RecordTemplate(initial);
	},
	
	/**
	 * Builds up the column model of the grid. The parent element of the
	 * grid.
	 * 
	 * Sets up the editors for the grid columns depending on the 
	 * type of the items.
	 * 
	 * @param {Object} parent The 
	 */
	buildColumnModel: function(parent) {
		var cols = [];
		for (var i = 0; i < this.items.length; i++) {
			var id 		= this.items[i].id();
			var header 	= this.items[i].name();
			var width 	= this.items[i].width();
			var type 	= this.items[i].type();
			var editor;
			
			if (type == ORYX.CONFIG.TYPE_STRING) {
				editor = new Ext.form.TextField({ allowBlank : this.items[i].optional(), width : width});
			} else if (type == ORYX.CONFIG.TYPE_CHOICE) {				
				var items = this.items[i].items();
				var select = ORYX.Editor.graft("http://www.w3.org/1999/xhtml", parent, ['select', {style:'display:none'}]);
				var optionTmpl = new Ext.Template('<option value="{value}">{value}</option>');
				items.each(function(value){ 
					optionTmpl.append(select, {value:value.value()}); 
				});				
				
				editor = new Ext.form.ComboBox(
					{ typeAhead: true, triggerAction: 'all', transform:select, lazyRender:true,  msgTarget:'title', width : width});			
			} else if (type == ORYX.CONFIG.TYPE_BOOLEAN) {
				editor = new Ext.form.Checkbox( { width : width } );
			} else if (type == ORYX.CONFIG.TYPE_COMPLEX) {
				continue;
			}
					
			cols.push({
				id: 		id,
				header: 	header,
				dataIndex: 	id,
				resizable: 	true,
				editor: 	editor,
				width:		width
	        });
			
		}
		return new Ext.grid.ColumnModel(cols);
	},
	
	/**
	 * After a cell was edited the changes will be commited.
	 * 
	 * @param {Object} option The option that was edited.
	 */
	afterEdit: function(option) {
		option.grid.getStore().commitChanges();
	},
		
	/**
	 * Before a cell is edited it has to be checked if this 
	 * cell is disabled by another cell value. If so, the cell editor will
	 * be disabled.
	 * 
	 * @param {Object} option The option to be edited.
	 */
	beforeEdit: function(option) {

		var state = this.grid.getView().getScrollState();
		
		var col = option.column;
		var row = option.row;
		
		var editId = this.grid.getColumnModel().config[col].id;
		// check if there is an item in the row, that disables this cell
		for (var i = 0; i < this.items.length; i++) {
			// check each item that defines a "disable" property
			var item = this.items[i];
			var disables = item.disable();
			if (disables != undefined) {
				
				// check if the value of the column of this item in this row is equal to a disabling value
				var value = this.grid.getStore().getAt(row).get(item.id());
				for (var j = 0; j < disables.length; j++) {
					var disable = disables[j];
					if (disable.value == value) {
						
						for (var k = 0; k < disable.items.length; k++) {
							// check if this value disables the cell to select 
							// (id is equals to the id of the column to edit)
							var disItem = disable.items[k];
							if (disItem == editId) {
								this.grid.getColumnModel().getCellEditor(col, row).disable();
								return;
							}
						}
					}
				}		
			}
		}
		this.grid.getColumnModel().getCellEditor(col, row).enable();
		//this.grid.getView().restoreScroll(state);
	},
	
	onCellClick: function() {
		alert()
	},
	
    /**
     * If the trigger was clicked a dialog has to be opened
     * to enter the values for the complex property.
     */
    onTriggerClick : function(){
        if(this.disabled){
            return;
        }	
		
		//if(!this.dialog) { 
		
			var dialogWidth = 0;
			var recordType 	= [];
			
			for (var i = 0; i < this.items.length; i++) {
				var id 		= this.items[i].id();
				var width 	= this.items[i].width();
				var type 	= this.items[i].type();	
					
				if (type == ORYX.CONFIG.TYPE_CHOICE || type == ORYX.CONFIG.TYPE_COMPLEX) {
					type = ORYX.CONFIG.TYPE_STRING;
				}
						
				dialogWidth += width;
				recordType[i] = {name:id, type:type};
			}			
			
			if (dialogWidth > 800) {
				dialogWidth = 800;
			}
			dialogWidth += 22;
			
			var data = this.data;
			
			if (data == "") {
				// empty string can not be parsed
				data = "{}";
			}
			
			var ds = new Ext.data.Store({
		        proxy: new Ext.data.MemoryProxy(eval("(" + data + ")")),				
				reader: new Ext.data.JsonReader({
		            root: 'items',
		            totalProperty: 'totalCount'
		        	}, recordType)
	        });
			ds.load();
					
				
			var cm = this.buildColumnModel();

			
									
			//var gridHead = this.grid.getView().getHeaderPanel(true);
			var toolbar = new Ext.Toolbar(
			[{
				text: ORYX.I18N.PropertyWindow.add,					
				icon: '../editor/images/add.png',
				iconCls: "x-dummy",
				handler: function(){
					var ds = this.grid.getStore();
					var index = ds.getCount();
					this.grid.stopEditing();
					var p = this.buildInitial(recordType, this.items);
					ds.insert(index, p);
					ds.commitChanges();
					this.grid.startEditing(index, 0);
				}.bind(this)
			},{
				text: ORYX.I18N.PropertyWindow.rem,					
				icon: '../editor/images/delete.png',
				iconCls: "x-dummy",
		        handler : function(){
					var ds = this.grid.getStore();
					var selection = this.grid.getSelectionModel().getSelectedCell();
					if (selection == undefined) {
						return;
					}
					this.grid.getSelectionModel().clearSelections();
		            this.grid.stopEditing();					
					var record = ds.getAt(selection[0]);
					ds.remove(record);
					ds.commitChanges();           
				}.bind(this)
			}]);			
					
			this.grid = new Ext.grid.EditorGridPanel({
				store:		ds,
		        cm:			cm,
				stripeRows: true,
				clicksToEdit: 1,
				autoScroll: true,
				stateId: "x-editor-complex-grid",
				anchor: "100% 100%", 
				enableHdMenu: false, // Disable header menu
				selModel: new Ext.grid.CellSelectionModel(),

				tbar:toolbar
				
		    });	
			
			// Basic Dialog
			this.dialog = new Ext.Window({ 
				autoCreate: true, 
				layout: "anchor",
				title: ORYX.I18N.PropertyWindow.complex, 
				height: 350, 
				width: dialogWidth, 
				modal:true,
				collapsible:false,
				fixedcenter: true, 
				shadow:true, 
				proxyDrag: true,
				keys:[{
					key: 27,
					fn: function(){
						this.dialog.hide
					}.bind(this)
				}],
				items:[this.grid],
				bodyStyle:"background-color:#FFFFFF",
				buttons: [{
	                text: ORYX.I18N.PropertyWindow.ok,
	                handler: function(){
	                    this.grid.stopEditing();	
						// store dialog input
						this.data = this.buildValue();
						this.dialog.hide()
	                }.bind(this)
	            }, {
	                text: ORYX.I18N.PropertyWindow.cancel,
	                handler: function(){
	                	this.dialog.hide()
	                }.bind(this)
	            }]
			});		
				
			this.dialog.on(Ext.apply({}, this.dialogListeners, {
	       		scope:this
	        }));
		
			this.dialog.show();	
		
	
			this.grid.on('beforeedit', 	this.beforeEdit, 	this, true);
			this.grid.on('afteredit', 	this.afterEdit, 	this, true);
			
			this.grid.render();			
	    
		/*} else {
			this.dialog.show();		
		}*/
		
	}
});

Ext.form.MultipleComplexListField = function(config, items, key, facade){
    Ext.form.MultipleComplexListField.superclass.constructor.call(this, config);
	this.items 	= items;
	this.key 	= key;
	this.facade = facade;
};

Ext.extend(Ext.form.MultipleComplexListField, Ext.form.TriggerField,  {
	/**
     * @cfg {String} triggerClass
     * An additional CSS class used to style the trigger button.  The trigger will always get the
     * class 'x-form-trigger' and triggerClass will be <b>appended</b> if specified.
     */
    triggerClass:	'x-form-complex-trigger',
	readOnly:		true,
	emptyText: 		ORYX.I18N.PropertyWindow.clickIcon,
		
	/**
	 * Builds the JSON value from the data source of the grid in the dialog.
	 */
	buildValue: function() {
		var ds = this.grid.getStore();
		ds.commitChanges();
		
		if (ds.getCount() == 0) {
			return "";
		}
		
		var jsonString = "[";
		for (var i = 0; i < ds.getCount(); i++) {
			var data = ds.getAt(i);		
			jsonString += "{";	
			for (var j = 0; j < this.items.length; j++) {
				var key = this.items[j].id();
				jsonString += key + ':' + ("" + data.get(key)).toJSON();
				if (j < (this.items.length - 1)) {
					jsonString += ", ";
				}
			}
			jsonString += "}";
			if (i < (ds.getCount() - 1)) {
				jsonString += ", ";
			}
		}
		jsonString += "]";
		
		jsonString = "{'totalCount':" + ds.getCount().toJSON() + 
			", 'items':" + jsonString + "}";
		return Object.toJSON(jsonString.evalJSON());
	},
	
	/**
	 * Returns the field key.
	 */
	getFieldKey: function() {
		return this.key;
	},
	
	/**
	 * Returns the actual value of the trigger field.
	 * If the table does not contain any values the empty
	 * string will be returned.
	 */
    getValue : function(){
		// return actual value if grid is active
		if (this.grid) {
			return this.buildValue();			
		} else if (this.data == undefined) {
			return "";
		} else {
			return this.data;
		}
    },
	
	/**
	 * Sets the value of the trigger field.
	 * In this case this sets the data that will be shown in
	 * the grid of the dialog.
	 * 
	 * @param {Object} value The value to be set (JSON format or empty string)
	 */
	setValue: function(value) {	
		if (value.length > 0 && value.indexOf('<') == -1) {
			// set only if this.data not set yet
			// only to initialize the grid
			if (this.data == undefined) {
				this.data = value;
			}
		}
	},
	
	/**
	 * Returns false. In this way key events will not be propagated
	 * to other elements.
	 * 
	 * @param {Object} event The keydown event.
	 */
	keydownHandler: function(event) {
		return false;
	},
	
	/**
	 * The listeners of the dialog. 
	 * 
	 * If the dialog is hidded, a dialogClosed event will be fired.
	 * This has to be used by the parent element of the trigger field
	 * to reenable the trigger field (focus gets lost when entering values
	 * in the dialog).
	 */
    dialogListeners : {
        show : function(){ // retain focus styling
            this.onFocus();	
			this.facade.registerOnEvent(ORYX.CONFIG.EVENT_KEYDOWN, this.keydownHandler.bind(this));
			this.facade.disableEvent(ORYX.CONFIG.EVENT_KEYDOWN);
			return;
        },
        hide : function(){

            var dl = this.dialogListeners;
            this.dialog.un("show", dl.show,  this);
            this.dialog.un("hide", dl.hide,  this);
			
			this.dialog.destroy(true);
			this.grid.destroy(true);
			delete this.grid;
			delete this.dialog;
			
			this.facade.unregisterOnEvent(ORYX.CONFIG.EVENT_KEYDOWN, this.keydownHandler.bind(this));
			this.facade.enableEvent(ORYX.CONFIG.EVENT_KEYDOWN);
			
			// store data and notify parent about the closed dialog
			// parent has to handel this event and start editing the text field again
			this.fireEvent('dialogClosed', this.data);
			
			Ext.form.ComplexListField.superclass.setValue.call(this, this.data);
        }
    },	
	
	/**
	 * Builds up the initial values of the grid.
	 * 
	 * @param {Object} recordType The record type of the grid.
	 * @param {Object} items      The initial items of the grid (columns)
	 */
	buildInitial: function(recordType, items) {
		var initial = new Hash();
		
		for (var i = 0; i < items.length; i++) {
			var id = items[i].id();
			initial[id] = items[i].value();
		}
		
		var RecordTemplate = Ext.data.Record.create(recordType);
		return new RecordTemplate(initial);
	},
	
	/**
	 * Builds up the column model of the grid. The parent element of the
	 * grid.
	 * 
	 * Sets up the editors for the grid columns depending on the 
	 * type of the items.
	 * 
	 * @param {Object} parent The 
	 */
	buildColumnModel: function(parent) {
		var cols = [];
		for (var i = 0; i < this.items.length; i++) {
			var id 		= this.items[i].id();
			var header 	= this.items[i].name();
			var width 	= this.items[i].width();
			var type 	= this.items[i].type();
			var editor;
			
			if (type == ORYX.CONFIG.TYPE_STRING) {
				editor = new Ext.form.TextField({ allowBlank : this.items[i].optional(), width : width});
			} else if (type == ORYX.CONFIG.TYPE_CHOICE) {				
				var items = this.items[i].items();
				var select = ORYX.Editor.graft("http://www.w3.org/1999/xhtml", parent, ['select', {style:'display:none'}]);
				var optionTmpl = new Ext.Template('<option value="{value}">{value}</option>');
				items.each(function(value){ 
					optionTmpl.append(select, {value:value.value()}); 
				});				
				
				editor = new Ext.form.ComboBox(
					{ typeAhead: true, triggerAction: 'all', transform:select, lazyRender:true,  msgTarget:'title', width : width});			
			} else if (type == ORYX.CONFIG.TYPE_BOOLEAN) {
				editor = new Ext.form.Checkbox( { width : width } );
			} else if (type == ORYX.CONFIG.TYPE_COMPLEX) {
				continue;
			}
					
			cols.push({
				id: 		id,
				header: 	header,
				dataIndex: 	id,
				resizable: 	true,
				editor: 	editor,
				width:		width
	        });
			
		}
		return new Ext.grid.ColumnModel(cols);
	},
	
	buildSecondColumnModel: function(parent) {
		var cols = [];
		for (var i = 0; i < this.items.length; i++) {
			
			var parentType 	= this.items[i].type();
			
			if (parentType != ORYX.CONFIG.TYPE_COMPLEX) {
				continue;
			}
			
			var complexItems = this.items[i].complexItems();
			
			for (var j = 0; j < complexItems.length; j++) {
				var id 		= complexItems[j].id();
				var header 	= complexItems[j].name();
				var type 	= complexItems[j].type();
				var width 	= complexItems[j].width();
				var editor;
				
				if (type == ORYX.CONFIG.TYPE_STRING) {
					editor = new Ext.form.TextField({ allowBlank : complexItems[j].optional(), width : width});
				} else if (type == ORYX.CONFIG.TYPE_CHOICE) {				
					var items = complexItems[j].items();
					var select = ORYX.Editor.graft("http://www.w3.org/1999/xhtml", parent, ['select', {style:'display:none'}]);
					var optionTmpl = new Ext.Template('<option value="{value}">{value}</option>');
					items.each(function(value){ 
						optionTmpl.append(select, {value:value.value()}); 
					});				
					
					editor = new Ext.form.ComboBox(
						{ typeAhead: true, triggerAction: 'all', transform:select, lazyRender:true,  msgTarget:'title', width : width});			
				} else if (type == ORYX.CONFIG.TYPE_BOOLEAN) {
					editor = new Ext.form.Checkbox( { width : width } );
				} else if (type == ORYX.CONFIG.TYPE_COMPLEX) {
					continue;
				}
						
				cols.push({
					id: 		id,
					header: 	header,
					dataIndex: 	id,
					resizable: 	true,
					editor: 	editor,
					width:		width
		        });
			}
		}
		return new Ext.grid.ColumnModel(cols);
	},
	
	/**
	 * After a cell was edited the changes will be commited.
	 * 
	 * @param {Object} option The option that was edited.
	 */
	afterEdit: function(option) {
		option.grid.getStore().commitChanges();
	},
	
	afterEditSecondGrid: function(option) {
		this.secondGrid.getStore().commitChanges();
		var selectedCell = this.grid.getSelectionModel().getSelectedCell();
		if (selectedCell.length == 2) {
			var row = selectedCell[0];
			
			var jsonString = "[";
			for (var i = 0; i < this.secondGrid.getStore().getCount(); i++) {
				var data = this.secondGrid.getStore().getAt(i);		
				jsonString += "{";	
				for (var j = 0; j < this.items.length; j++) {
					
					var parentType 	= this.items[j].type();
					
					if (parentType != ORYX.CONFIG.TYPE_COMPLEX) {
						continue;
					}
					
					var complexItems = this.items[j].complexItems();
					
					for (var k = 0; k < complexItems.length; k++) {
					
						var key = complexItems[k].id();
						
						jsonString += key + ':' + ("" + data.get(key)).toJSON();
						if (k < (complexItems.length - 1)) {
							jsonString += ", ";
						}
					}
				}
				jsonString += "}";
				if (i < (this.secondGrid.getStore().getCount() - 1)) {
					jsonString += ", ";
				}
			}
			jsonString += "]";
			
			jsonString = "{'totalCount':" + this.secondGrid.getStore().getCount().toJSON() + 
				", 'items':" + jsonString + "}";
			
			var activeRecord = this.grid.getStore().getAt(row);
			activeRecord.set(this.complexFieldId, Object.toJSON(jsonString.evalJSON()));
		}
	},
		
	/**
	 * Before a cell is edited it has to be checked if this 
	 * cell is disabled by another cell value. If so, the cell editor will
	 * be disabled.
	 * 
	 * @param {Object} option The option to be edited.
	 */
	beforeEdit: function(option) {

		var state = this.grid.getView().getScrollState();
		
		var col = option.column;
		var row = option.row;
		
		var editId = this.grid.getColumnModel().config[col].id;
		// check if there is an item in the row, that disables this cell
		for (var i = 0; i < this.items.length; i++) {
			
			if (this.items[i].type() == ORYX.CONFIG.TYPE_COMPLEX) {
				continue;
			}
			
			// check each item that defines a "disable" property
			var item = this.items[i];
			var disables = item.disable();
			if (disables != undefined) {
				
				// check if the value of the column of this item in this row is equal to a disabling value
				var value = this.grid.getStore().getAt(row).get(item.id());
				for (var j = 0; j < disables.length; j++) {
					var disable = disables[j];
					if (disable.value == value) {
						
						for (var k = 0; k < disable.items.length; k++) {
							// check if this value disables the cell to select 
							// (id is equals to the id of the column to edit)
							var disItem = disable.items[k];
							if (disItem == editId) {
								this.grid.getColumnModel().getCellEditor(col, row).disable();
								return;
							}
						}
					}
				}		
			}
		}
		this.grid.getColumnModel().getCellEditor(col, row).enable();
		//this.grid.getView().restoreScroll(state);
	},
	
    /**
     * If the trigger was clicked a dialog has to be opened
     * to enter the values for the complex property.
     */
    onTriggerClick : function(){
        if(this.disabled){
            return;
        }	
		
		//if(!this.dialog) { 
		
			var dialogWidth = 0;
			var recordType 	= [];
			var secondRecordType = [];
			
			this.complexFieldId;
			var complexItems;
			
			for (var i = 0; i < this.items.length; i++) {
				
				var id 		= this.items[i].id();
				var width 	= this.items[i].width();
				var type 	= this.items[i].type();	
					
				if (type == ORYX.CONFIG.TYPE_CHOICE) {
					type = ORYX.CONFIG.TYPE_STRING;
				}
				
				if (type == ORYX.CONFIG.TYPE_COMPLEX) {
					this.complexFieldId = id;
					type = ORYX.CONFIG.TYPE_STRING;
					
					complexItems = this.items[i].complexItems();
					
					for (var j = 0; j < complexItems.length; j++) {
						var secondId 		= complexItems[j].id();
						var secondWidth 	= complexItems[j].width();
						var secondType 		= complexItems[j].type();
						
						if (secondType == ORYX.CONFIG.TYPE_CHOICE) {
							secondType = ORYX.CONFIG.TYPE_STRING;
						}
						
						secondRecordType[j] = {name:secondId, type:secondType};
					}
					
				} else {
					dialogWidth += width;
				}
				recordType[i] = {name:id, type:type};
			}			
			
			if (dialogWidth > 800) {
				dialogWidth = 800;
			}
			dialogWidth += 22;
			
			var data = this.data;
			if (data == "") {
				// empty string can not be parsed
				data = "{}";
			}
			
			var ds = new Ext.data.Store({
		        proxy: new Ext.data.MemoryProxy(eval("(" + data + ")")),				
				reader: new Ext.data.JsonReader({
		            root: 'items',
		            totalProperty: 'totalCount'
		        	}, recordType)
	        });
			ds.load();
			
			var secondDs = new Ext.data.Store();
				
			var cm = this.buildColumnModel();
			
			var secondCm = this.buildSecondColumnModel();
					
			//var gridHead = this.grid.getView().getHeaderPanel(true);
			var toolbar = new Ext.Toolbar(
			[{
				text: ORYX.I18N.PropertyWindow.add,					
				icon: '../editor/images/add.png',
				iconCls: "x-dummy",
				handler: function(){
					var ds = this.grid.getStore();
					var index = ds.getCount();
					this.grid.stopEditing();
					var p = this.buildInitial(recordType, this.items);
					ds.insert(index, p);
					ds.commitChanges();
					this.grid.startEditing(index, 0);
				}.bind(this)
			},{
				text: ORYX.I18N.PropertyWindow.rem,					
				icon: '../editor/images/delete.png',
				iconCls: "x-dummy",
		        handler : function(){
					var ds = this.grid.getStore();
					var selection = this.grid.getSelectionModel().getSelectedCell();
					if (selection == undefined) {
						return;
					}
					this.grid.getSelectionModel().clearSelections();
		            this.grid.stopEditing();					
					var record = ds.getAt(selection[0]);
					ds.remove(record);
					ds.commitChanges();           
				}.bind(this)
			}]);			
					
			this.grid = new Ext.grid.EditorGridPanel({
				store:		ds,
		        cm:			cm,
				stripeRows: true,
				clicksToEdit: 1,
				autoScroll: true,
				stateId: "x-editor-complex-grid",
				height: 280, 
				anchor: '100%',
				enableHdMenu: false, // Disable header menu
				selModel: new Ext.grid.CellSelectionModel({
			        listeners: {
			        	scope: this,
			            cellselect: function(sm,row,col) {
			            	secondDs.removeAll(true);
			            	var masterRecord = ds.getAt(row);
			    			if (masterRecord.get('' + this.complexFieldId) != undefined && masterRecord.get('' + this.complexFieldId) != 'undefined') {
			    				
			    				var newDs = new Ext.data.Store({
			    			        proxy: new Ext.data.MemoryProxy(eval("(" + masterRecord.get('' + this.complexFieldId) + ")")),				
			    					reader: new Ext.data.JsonReader({
			    			            root: 'items',
			    			            totalProperty: 'totalCount'
			    			        	}, secondRecordType)
			    		        });
			    				newDs.load();
			    				
			    				secondDs.removeAll(true);
			    				for (var i = 0; i < newDs.getCount(); i++) {
			    					secondDs.add(newDs.getAt(i));
			    				}
			    			}
			    			secondDs.commitChanges();
			            }
			        }
				}),

				tbar:toolbar
				
		    });
			
			var secondToolbar = new Ext.Toolbar(
			[{
				text: ORYX.I18N.PropertyWindow.add,					
				icon: '../editor/images/add.png',
				iconCls: "x-dummy",
				handler: function(){
					var ds = this.secondGrid.getStore();
					var index = ds.getCount();
					this.secondGrid.stopEditing();
					var p = this.buildInitial(secondRecordType, complexItems);
					ds.insert(index, p);
					ds.commitChanges();
					this.secondGrid.startEditing(index, 0);
				}.bind(this)
			},{
				text: ORYX.I18N.PropertyWindow.rem,					
				icon: '../editor/images/delete.png',
				iconCls: "x-dummy",
		        handler : function(){
					var ds = this.secondGrid.getStore();
					var selection = this.secondGrid.getSelectionModel().getSelectedCell();
					if (selection == undefined) {
						return;
					}
					this.secondGrid.getSelectionModel().clearSelections();
		            this.secondGrid.stopEditing();					
					var record = ds.getAt(selection[0]);
					ds.remove(record);
					ds.commitChanges();
					this.afterEditSecondGrid();
				}.bind(this)
			}]);
			
			this.secondGrid = new Ext.grid.EditorGridPanel({
				store:		secondDs,
		        cm:			secondCm,
				stripeRows: true,
				clicksToEdit: 1,
				autoScroll: true,
				stateId: "x-editor-complex-grid",
				height: 280, 
				anchor: '100%',
				enableHdMenu: false, // Disable header menu
				selModel: new Ext.grid.CellSelectionModel(),
				tbar:secondToolbar
				
		    });
			
			// Basic Dialog
			this.dialog = new Ext.Window({ 
				autoCreate: true, 
				layout: "anchor",
				title: ORYX.I18N.PropertyWindow.complex, 
				height: 600, 
				width: dialogWidth, 
				modal:true,
				collapsible:false,
				fixedcenter: true, 
				shadow:true, 
				proxyDrag: true,
				keys:[{
					key: 27,
					fn: function(){
						this.dialog.hide
					}.bind(this)
				}],
				items:[this.grid, this.secondGrid],
				bodyStyle:"background-color:#FFFFFF",
				buttons: [{
	                text: ORYX.I18N.PropertyWindow.ok,
	                handler: function(){
	                    this.grid.stopEditing();	
						// store dialog input
						this.data = this.buildValue();
						this.dialog.hide()
	                }.bind(this)
	            }]
			});		
				
			this.dialog.on(Ext.apply({}, this.dialogListeners, {
	       		scope:this
	        }));
		
			this.dialog.show();	
		
	
			this.grid.on('beforeedit', 	this.beforeEdit, 	this, true);
			this.grid.on('afteredit', 	this.afterEdit, 	this, true);
			
			this.secondGrid.on('beforeedit', 	this.beforeEdit, 	this, true);
			this.secondGrid.on('afteredit', 	this.afterEditSecondGrid, 	this, true);
			
			this.grid.render();
			this.secondGrid.render();
			
			if (ds.getCount() > 0) {
				this.grid.getSelectionModel().select(0,0);
			}
	    
		/*} else {
			this.dialog.show();		
		}*/
		
	}
});


Ext.form.ComplexTextField = Ext.extend(Ext.form.TriggerField,  {

	defaultAutoCreate : {tag: "textarea", rows:1, style:"height:16px;overflow:hidden;" },

    /**
     * If the trigger was clicked a dialog has to be opened
     * to enter the values for the complex property.
     */
    onTriggerClick : function(){
		
        if(this.disabled){
            return;
        }	
		        
		var grid = new Ext.form.TextArea({
	        anchor		: '100% 100%',
			value		: this.value,
			listeners	: {
				focus: function(){
					this.facade.disableEvent(ORYX.CONFIG.EVENT_KEYDOWN);
				}.bind(this)
			}
		})
		
		
		// Basic Dialog
		var dialog = new Ext.Window({ 
			layout		: 'anchor',
			autoCreate	: true, 
			title		: ORYX.I18N.PropertyWindow.text, 
			height		: 500, 
			width		: 500, 
			modal		: true,
			collapsible	: false,
			fixedcenter	: true, 
			shadow		: true, 
			proxyDrag	: true,
			keys:[{
				key	: 27,
				fn	: function(){
						dialog.hide()
				}.bind(this)
			}],
			items		:[grid],
			listeners	:{
				hide: function(){
					this.fireEvent('dialogClosed', this.value);
					//this.focus.defer(10, this);
					dialog.destroy();
				}.bind(this)				
			},
			buttons		: [{
                text: ORYX.I18N.PropertyWindow.ok,
                handler: function(){	 
					// store dialog input
					var value = grid.getValue();
					this.setValue(value);
					
					this.dataSource.getAt(this.row).set('value', value)
					this.dataSource.commitChanges()

					dialog.hide()
                }.bind(this)
            }, {
                text: ORYX.I18N.PropertyWindow.cancel,
                handler: function(){
					this.setValue(this.value);
                	dialog.hide()
                }.bind(this)
            }]
		});		
				
		dialog.show();		
		grid.render();

		this.grid.stopEditing();
		grid.focus( false, 100 );
		
	}
});

Ext.form.ComplexModelLinkField = Ext.extend(Ext.form.TriggerField, {
	onTriggerClick : function() {
		if(this.disabled){
			return;
		}
	        
		var CallElementDef = Ext.data.Record.create([{
			name: 'name'
		}, {
			name: 'revision'
		}, {
			name: 'imgsrc'
		}]);
	    
		var calldefsProxy = new Ext.data.MemoryProxy({
			root: []
		});
	    
		var calldefs = new Ext.data.Store({
			autoDestroy: true,
			reader: new Ext.data.JsonReader({
				root: "root"
			}, CallElementDef),
			proxy: calldefsProxy,
			sorters: [{
				property: 'name',
				direction:'ASC'
			}]
		});
		calldefs.load();
	    
		var loadProcessesMask = new Ext.LoadMask(Ext.getBody(), {msg:'Loading Process Information'});
		loadProcessesMask.show();
		Ext.Ajax.request({
			url: ORYX.CONFIG.MODEL_LIST_URL,
			method: 'GET',
			success: function(response) {
				try {
					loadProcessesMask.hide();
					if(response.responseText.length > 0 && response.responseText != "false") {
						var responseJson = Ext.decode(response.responseText);
						var modelsArray = responseJson["models"];
						for(var i = 0; i < modelsArray.length; i++) {
					        var modelObj = modelsArray[i];
					        calldefs.add(new CallElementDef({
								name: modelObj["name"],
								revision: modelObj["revision"],
								imgsrc: ORYX.CONFIG.SERVER_MODEL_HANDLER + "/" + modelObj["modelId"] + "/svg"
							}));
					    }

						calldefs.commitChanges();
	    
						var gridId = Ext.id();
						var grid = new Ext.grid.EditorGridPanel({
							store: calldefs,
							id: gridId,
							stripeRows: true,
							cm: new Ext.grid.ColumnModel([new Ext.grid.RowNumberer(), {
								id: 'pid',
								header: 'Process Id',
								width: 200,
								dataIndex: 'name',
								editor: new Ext.form.TextField({ allowBlank: false, disabled: true })
							}, {
								id: 'revi',
								header: 'Revision',
								width: 200,
								dataIndex: 'revision',
								editor: new Ext.form.TextField({ allowBlank: false, disabled: true })
							},{
								id: 'pim',
								header: 'Process Image',
								width: 250,
								dataIndex: 'imgsrc',
								renderer: function(val) {
									if(val && val.length > 0) {
										return '<center><img src="'+ORYX.CONFIG.ROOT_PATH+'images/processimagepreview.png" onclick="new ImageViewer({title: \'Process Image\', width: \'1100\', height: \'900\', autoScroll: true, fixedcenter: true, src: \''+val+'\',hideAction: \'close\'}).show();" alt="Click to view Process Image"/></center>';
									} else {
										return "<center>Process image not available.</center>";
									}
								}
							}]),
							autoHeight: true
						});
	    
						grid.on('afterrender', function(e) {
							if(this.value.length > 0) {
								var index = 0;
								var val = this.value;
								var mygrid = grid;
								calldefs.data.each(function() {
									if(this.data['name'] == val) {
										mygrid.getSelectionModel().select(index, 1);
									}
									index++;
								});
							}
						}.bind(this));
	    
						var calledElementsPanel = new Ext.Panel({
							id: 'calledElementsPanel',
							title: '<center>Select Process Id and click "Save" to select.</center>',
							layout:'column',
							items:[
							       grid
							       ],
							       layoutConfig: {
							    	   columns: 1
							       },
							       defaults: {
							    	   columnWidth: 1.0
							       }
						});
	    
						var dialog = new Ext.Window({
							layout	: 'anchor',
							autoCreate	: true,
							title	: 'Editor for Called Elements',
							height	: 350,
							width	: 680,
							modal	: true,
							collapsible	: false,
							fixedcenter	: true,
							shadow	: true,
							resizable : true,
							proxyDrag	: true,
							autoScroll : true,
							keys:[{
								key	: 27,
								fn	: function(){
									dialog.hide()
								}.bind(this)
							}],
							items	:[calledElementsPanel],
							listeners	:{
								hide: function(){
									this.fireEvent('dialogClosed', this.value);
									dialog.destroy();
								}.bind(this)	
							},
							buttons	: [{
								text: 'Save',
								handler: function(){
									if(grid.getSelectionModel().getSelectedCell() != null) {
										var selectedIndex = grid.getSelectionModel().getSelectedCell()[0];
										var outValue = calldefs.getAt(selectedIndex).data['name'];
										grid.stopEditing();
										grid.getView().refresh();
										this.setValue(outValue);
										this.dataSource.getAt(this.row).set('value', outValue)
										this.dataSource.commitChanges()
										dialog.hide()
									} else {
										Ext.Msg.alert('Please select a process id.');
									}
								}.bind(this)
							}, {
								text: ORYX.I18N.PropertyWindow.cancel,
								handler: function(){
									this.setValue(this.value);
									dialog.hide()
								}.bind(this)
							}]
						});	
	    
						dialog.show();	
						grid.render();
						grid.fireEvent('afterrender');
						this.grid.stopEditing();
						grid.focus( false, 100 );
					} else {
						Ext.Msg.alert('Unable to find other processes in pacakge.');
					}
				} catch(e) {
					Ext.Msg.alert('Error resolving other process info :\n' + e);
				}
			}.bind(this),
			failure: function(){
				loadProcessesMask.hide();
				Ext.Msg.alert('Error resolving other process info.');
			}
		});
	}
});

Ext.form.ListenerDefinitionField = Ext.extend(Ext.form.TriggerField, {
	onTriggerClick : function() {
		if(this.disabled){
			return;
		}
	        
		var ListenerDef = Ext.data.Record.create([{
			name: 'class'
		}, {
			name: 'expression'
		}, {
			name: 'event'
		}]);
	    
		var calldefsProxy = new Ext.data.MemoryProxy({
			root: []
		});
	    
		var calldefs = new Ext.data.Store({
			autoDestroy: true,
			reader: new Ext.data.JsonReader({
				root: "root"
			}, ListenerDef),
			proxy: calldefsProxy,
			sorters: [{
				property: 'event',
				direction:'ASC'
			}]
		});
		calldefs.load();

		var gridId = Ext.id();
		var grid = new Ext.grid.EditorGridPanel({
			store: calldefs,
			id: gridId,
			stripeRows: true,
			cm: new Ext.grid.ColumnModel([new Ext.grid.RowNumberer(), {
				id: 'pid',
				header: 'Process Id',
				width: 200,
				dataIndex: 'class',
				editor: new Ext.form.TextField({ allowBlank: false, disabled: true })
			}, {
				id: 'revi',
				header: 'Revision',
				width: 200,
				dataIndex: 'expression',
				editor: new Ext.form.TextField({ allowBlank: false, disabled: true })
			},{
				id: 'pim',
				header: 'Process Image',
				width: 250,
				dataIndex: 'event',
				renderer: function(val) {
					if(val && val.length > 0) {
						return '<center><img src="'+ORYX.CONFIG.ROOT_PATH+'images/processimagepreview.png" onclick="new ImageViewer({title: \'Process Image\', width: \'1100\', height: \'900\', autoScroll: true, fixedcenter: true, src: \''+val+'\',hideAction: \'close\'}).show();" alt="Click to view Process Image"/></center>';
					} else {
						return "<center>Process image not available.</center>";
					}
				}
			}]),
			autoHeight: true
		});

		var calledElementsPanel = new Ext.Panel({
			id: 'calledElementsPanel',
			title: '<center>Select Process Id and click "Save" to select.</center>',
			layout:'column',
			items:[
			       grid
			       ],
			       layoutConfig: {
			    	   columns: 1
			       },
			       defaults: {
			    	   columnWidth: 1.0
			       }
		});

		var dialog = new Ext.Window({
			layout	: 'anchor',
			autoCreate	: true,
			title	: 'Editor for Called Elements',
			height	: 350,
			width	: 680,
			modal	: true,
			collapsible	: false,
			fixedcenter	: true,
			shadow	: true,
			resizable : true,
			proxyDrag	: true,
			autoScroll : true,
			keys:[{
				key	: 27,
				fn	: function(){
					dialog.hide()
				}.bind(this)
			}],
			items	:[calledElementsPanel],
			listeners	:{
				hide: function(){
					this.fireEvent('dialogClosed', this.value);
					dialog.destroy();
				}.bind(this)	
			},
			buttons	: [{
				text: 'Save',
				handler: function(){
					if(grid.getSelectionModel().getSelectedCell() != null) {
						var selectedIndex = grid.getSelectionModel().getSelectedCell()[0];
						var outValue = calldefs.getAt(selectedIndex).data['name'];
						grid.stopEditing();
						grid.getView().refresh();
						this.setValue(outValue);
						this.dataSource.getAt(this.row).set('value', outValue)
						this.dataSource.commitChanges()
						dialog.hide()
					} else {
						Ext.Msg.alert('Please select a process id.');
					}
				}.bind(this)
			}, {
				text: ORYX.I18N.PropertyWindow.cancel,
				handler: function(){
					this.setValue(this.value);
					dialog.hide()
				}.bind(this)
			}]
		});	

		dialog.show();	
		grid.render();
		grid.fireEvent('afterrender');
		this.grid.stopEditing();
		grid.focus( false, 100 );
	}
});/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/
if (!ORYX.Plugins) {
    ORYX.Plugins = new Object();
}

/**
 * This plugin is responsible for displaying loading indicators and to prevent
 * the user from accidently unloading the page by, e.g., pressing the backspace
 * button and returning to the previous site in history.
 * @param {Object} facade The editor plugin facade to register enhancements with.
 */
ORYX.Plugins.Loading = {

    construct: function(facade){
    
        this.facade = facade;
        
        // The parent Node
        this.node = ORYX.Editor.graft("http://www.w3.org/1999/xhtml", this.facade.getCanvas().getHTMLContainer().parentNode, ['div', {
            'class': 'LoadingIndicator'
        }, '']);
        
        this.facade.registerOnEvent(ORYX.CONFIG.EVENT_LOADING_ENABLE, this.enableLoading.bind(this));
        this.facade.registerOnEvent(ORYX.CONFIG.EVENT_LOADING_DISABLE, this.disableLoading.bind(this));
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_LOADING_STATUS, this.showStatus.bind(this));
        
        this.disableLoading();
    },
    
    enableLoading: function(options){
		if(options.text) 
			this.node.innerHTML = options.text + "...";
		else
			this.node.innerHTML = ORYX.I18N.Loading.waiting;
		this.node.removeClassName('StatusIndicator');
		this.node.addClassName('LoadingIndicator');
        this.node.style.display = "block";
		
		var pos = this.facade.getCanvas().rootNode.parentNode.parentNode.parentNode.parentNode;

		this.node.style.top 		= pos.offsetTop + 'px';
		this.node.style.left 		= pos.offsetLeft +'px';
					
    },
    
    disableLoading: function(){
        this.node.style.display = "none";
    },
	
	showStatus: function(options) {
		if(options.text) {
			this.node.innerHTML = options.text;
			this.node.addClassName('StatusIndicator');
			this.node.removeClassName('LoadingIndicator');
			this.node.style.display = 'block';

			var pos = this.facade.getCanvas().rootNode.parentNode.parentNode.parentNode.parentNode;

			this.node.style.top 	= pos.offsetTop + 'px';
			this.node.style.left 	= pos.offsetLeft +'px';
												
			var tout = options.timeout ? options.timeout : 2000;
			
			window.setTimeout((function(){
            
                this.disableLoading();
                
            }).bind(this), tout);
		}
		
	}
}

ORYX.Plugins.Loading = Clazz.extend(ORYX.Plugins.Loading);
/**
 * Copyright (c) 2008
 * Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/
if (!ORYX.Plugins) {
    ORYX.Plugins = new Object();
}

/**
 * This plugin is responsible for resizing the canvas.
 * @param {Object} facade The editor plugin facade to register enhancements with.
 */
ORYX.Plugins.CanvasResize = Clazz.extend({

    construct: function(facade){
		
        this.facade = facade;
        
		new ORYX.Plugins.CanvasResizeButton( this.facade.getCanvas(), "N", this.resize.bind(this));
		new ORYX.Plugins.CanvasResizeButton( this.facade.getCanvas(), "W", this.resize.bind(this));
		new ORYX.Plugins.CanvasResizeButton( this.facade.getCanvas(), "E", this.resize.bind(this));
		new ORYX.Plugins.CanvasResizeButton( this.facade.getCanvas(), "S", this.resize.bind(this));

    },
    
    resize: function( position, shrink ){
    	
    	resizeCanvas = function(position, extentionSize, facade) {
        	var canvas 		= facade.getCanvas();
    		var b 			= canvas.bounds;
    		var scrollNode 	= facade.getCanvas().getHTMLContainer().parentNode.parentNode;
    		
    		if( position == "E" || position == "W"){
    			canvas.setSize({width: (b.width() + extentionSize)*canvas.zoomLevel, height: (b.height())*canvas.zoomLevel})

    		} else if( position == "S" || position == "N"){
    			canvas.setSize({width: (b.width())*canvas.zoomLevel, height: (b.height() + extentionSize)*canvas.zoomLevel})
    		}

    		if( position == "N" || position == "W"){
    			
    			var move = position == "N" ? {x: 0, y: extentionSize}: {x: extentionSize, y: 0 };

    			// Move all children
    			canvas.getChildNodes(false, function(shape){ shape.bounds.moveBy(move) })
    			// Move all dockers, when the edge has at least one docked shape
    			var edges = canvas.getChildEdges().findAll(function(edge){ return edge.getAllDockedShapes().length > 0})
    			var dockers = edges.collect(function(edge){ return edge.dockers.findAll(function(docker){ return !docker.getDockedShape() })}).flatten();
    			dockers.each(function(docker){ docker.bounds.moveBy(move)})
    		} else if( position == "S" ){
    			scrollNode.scrollTop += extentionSize;
    		} else if( position == "E" ){
    			scrollNode.scrollLeft += extentionSize;
    		}
    		
    		canvas.update();
    		facade.updateSelection();
        }
		
		var commandClass = ORYX.Core.Command.extend({
			construct: function(position, extentionSize, facade){
				this.position = position;
				this.extentionSize = extentionSize;
				this.facade = facade;
			},			
			execute: function(){
				resizeCanvas(this.position, this.extentionSize, this.facade);
			},
			rollback: function(){
				resizeCanvas(this.position, -this.extentionSize, this.facade);
			},
			update:function(){
			}
		});
		
		var extentionSize = ORYX.CONFIG.CANVAS_RESIZE_INTERVAL;
		if(shrink) extentionSize = -extentionSize;
		var command = new commandClass(position, extentionSize, this.facade);
		
		this.facade.executeCommands([command]);
			
    }
    
});


ORYX.Plugins.CanvasResizeButton = Clazz.extend({
	
	construct: function(canvas, position, callback){
		this.canvas = canvas;
		var parentNode = canvas.getHTMLContainer().parentNode.parentNode.parentNode;
		
		window.myParent=parentNode
		var scrollNode 	= parentNode.firstChild;
		var svgRootNode = scrollNode.firstChild.firstChild;
		// The buttons
		var buttonGrow 	= ORYX.Editor.graft("http://www.w3.org/1999/xhtml", parentNode, ['div', { 'class': 'canvas_resize_indicator canvas_resize_indicator_grow' + ' ' + position ,'title':ORYX.I18N.RESIZE.tipGrow+ORYX.I18N.RESIZE[position]}]);
		var buttonShrink 	= ORYX.Editor.graft("http://www.w3.org/1999/xhtml", parentNode, ['div', { 'class': 'canvas_resize_indicator canvas_resize_indicator_shrink' + ' ' + position ,'title':ORYX.I18N.RESIZE.tipShrink+ORYX.I18N.RESIZE[position]}]);
		
		// Defines a callback which gives back
		// a boolean if the current mouse event 
		// is over the particular button area
		var offSetWidth = 60;
		var isOverOffset = function(event){
			if(event.target!=parentNode && event.target!=scrollNode&& event.target!=scrollNode.firstChild&& event.target!=svgRootNode&& event.target!=scrollNode){ return false }
			//if(inCanvas){offSetWidth=30}else{offSetWidth=30*2}
			//Safari work around
			var X=event.layerX !== undefined ? event.layerX : event.offsetX;
			var Y=event.layerY !== undefined ? event.layerY : event.offsetY;
			
			if((X - scrollNode.scrollLeft)<0 ||Ext.isSafari){	X+=scrollNode.scrollLeft;}
			if((Y - scrollNode.scrollTop )<0 ||Ext.isSafari){ Y+=scrollNode.scrollTop ;}
			
			//

			if(position == "N"){
				return  Y < offSetWidth+scrollNode.firstChild.offsetTop;
			} else if(position == "W"){
				return X < offSetWidth + scrollNode.firstChild.offsetLeft;
			} else if(position == "E"){
				//other offset
				var offsetRight=(scrollNode.offsetWidth-(scrollNode.firstChild.offsetLeft + scrollNode.firstChild.offsetWidth));
				if(offsetRight<0)offsetRight=0;
				return X > scrollNode.scrollWidth-offsetRight-offSetWidth;
			} else if(position == "S"){
				//other offset
				var offsetDown=(scrollNode.offsetHeight-(scrollNode.firstChild.offsetTop  + scrollNode.firstChild.offsetHeight));
				if(offsetDown<0)offsetDown=0;

				return Y > scrollNode.scrollHeight -offsetDown- offSetWidth;
			}
			
			return false;
		}
		
		var showButtons = (function() {
			buttonGrow.show(); 
        
			var x1, y1, x2, y2;
			try {
				var bb = this.canvas.getRootNode().childNodes[1].getBBox();
				x1 = bb.x;
				y1 = bb.y;
				x2 = bb.x + bb.width;
				y2 = bb.y + bb.height;
			} catch(e) {
				this.canvas.getChildShapes(true).each(function(shape) {
					var absBounds = shape.absoluteBounds();
					var ul = absBounds.upperLeft();
					var lr = absBounds.lowerRight();
					if(x1 == undefined) {
						x1 = ul.x;
						y1 = ul.y;
						x2 = lr.x;
						y2 = lr.y;
					} else {
						x1 = Math.min(x1, ul.x);
						y1 = Math.min(y1, ul.y);
						x2 = Math.max(x2, lr.x);
						y2 = Math.max(y2, lr.y);
					}
				});
			}
        
			var w = canvas.bounds.width();
			var h = canvas.bounds.height();
        
			var isEmpty = canvas.getChildNodes().size()==0;
        
			if(position=="N" && (y1>ORYX.CONFIG.CANVAS_RESIZE_INTERVAL || (isEmpty && h>ORYX.CONFIG.CANVAS_RESIZE_INTERVAL))) buttonShrink.show();
			else if(position=="E" && (w-x2)>ORYX.CONFIG.CANVAS_RESIZE_INTERVAL) buttonShrink.show();
			else if(position=="S" && (h-y2)>ORYX.CONFIG.CANVAS_RESIZE_INTERVAL) buttonShrink.show();
			else if(position=="W" && (x1>ORYX.CONFIG.CANVAS_RESIZE_INTERVAL || (isEmpty && w>ORYX.CONFIG.CANVAS_RESIZE_INTERVAL))) buttonShrink.show();
			else buttonShrink.hide();
		}).bind(this);
        
		var hideButtons = function() {
			buttonGrow.hide(); 
			buttonShrink.hide();
		}	
        
		// If the mouse move is over the button area, show the button
		scrollNode.addEventListener(	ORYX.CONFIG.EVENT_MOUSEMOVE, 	function(event){ if( isOverOffset(event) ){showButtons();} else {hideButtons()}} , false );
		// If the mouse is over the button, show them
		buttonGrow.addEventListener(		ORYX.CONFIG.EVENT_MOUSEOVER, 	function(event){showButtons();}, true );
		buttonShrink.addEventListener(		ORYX.CONFIG.EVENT_MOUSEOVER, 	function(event){showButtons();}, true );
		// If the mouse is out, hide the button
		//scrollNode.addEventListener(		ORYX.CONFIG.EVENT_MOUSEOUT, 	function(event){button.hide()}, true )
		parentNode.addEventListener(	ORYX.CONFIG.EVENT_MOUSEOUT, 	function(event){hideButtons()} , true );
		//svgRootNode.addEventListener(	ORYX.CONFIG.EVENT_MOUSEOUT, 	function(event){ inCanvas = false } , true );
        
		// Hide the button initialy
		hideButtons();

		// Add the callbacks
	    buttonGrow.addEventListener('click', function(){callback( position ); showButtons();}, true);
	    buttonShrink.addEventListener('click', function(){callback( position, true ); showButtons();}, true);

	}
	

});

/**
 * Copyright (c) 2008
 * Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/
if (!ORYX.Plugins) 
    ORYX.Plugins = new Object();

ORYX.Plugins.RenameShapes = Clazz.extend({

    facade: undefined,
    
    construct: function(facade){
    
        this.facade = facade;
      	
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_DBLCLICK, this.actOnDBLClick.bind(this)); 
		this.facade.offer({
		 keyCodes: [{
				keyCode: 113, // F2-Key
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN 
			}
		 ],
         functionality: this.renamePerF2.bind(this)
         });
		
		
		document.documentElement.addEventListener(ORYX.CONFIG.EVENT_MOUSEDOWN, this.hide.bind(this), true ) 
    },
	
	/**
	 * This method handles the "F2" key down event. The selected shape are looked
	 * up and the editing of title/name of it gets started.
	 */
	renamePerF2 : function() {
		var selectedShapes = this.facade.getSelection();
		this.actOnDBLClick(undefined, selectedShapes.first());
	},
	
	actOnDBLClick: function(evt, shape){
		if( !(shape instanceof ORYX.Core.Shape) ){ return }
		
		// Destroys the old input, if there is one
		this.destroy();
		
		// Get all properties which where at least one ref to view is set
		var props = shape.getStencil().properties().findAll(function(item){ 
			return (item.refToView() 
					&&  item.refToView().length > 0
					&&	item.directlyEditable()); 
		});
		// from these, get all properties where write access are and the type is String
		props = props.findAll(function(item){ return !item.readonly() &&  item.type() == ORYX.CONFIG.TYPE_STRING });
		
		// Get all ref ids
		var allRefToViews	= props.collect(function(prop){ return prop.refToView() }).flatten().compact();
		// Get all labels from the shape with the ref ids
		var labels			= shape.getLabels().findAll(function(label){ return allRefToViews.any(function(toView){ return label.id.endsWith(toView) }); })
		
		// If there are no referenced labels --> return
		if( labels.length == 0 ){ return } 
		
		// Define the nearest label
		var nearestLabel 	= labels.length <= 1 ? labels[0] : null;	
		if( !nearestLabel ){
			
			nearestLabel = labels.find(function(label){ return label.node == evt.target || label.node == evt.target.parentNode })
			if( !nearestLabel ){
				
				var evtCoord 	= this.facade.eventCoordinates(evt);

				var trans		= this.facade.getCanvas().rootNode.lastChild.getScreenCTM();
				evtCoord.x		*= trans.a;
				evtCoord.y		*= trans.d;

				var diff = labels.collect(function(label){ 
							var center 	= this.getCenterPosition( label.node ); 
							var len 	= Math.sqrt( Math.pow(center.x - evtCoord.x, 2) + Math.pow(center.y - evtCoord.y, 2));
							return {diff: len, label: label} 
						}.bind(this));
				
				diff.sort(function(a, b){ return a.diff > b.diff })	
				
				nearestLabel = 	diff[0].label;

			}
		}
		// Get the particular property for the label
		var prop 			= props.find(function(item){ return item.refToView().any(function(toView){ return nearestLabel.id == shape.id + toView })});

		// Set all particular config values
		var htmlCont 	= this.facade.getCanvas().getHTMLContainer().id;

		// Get the center position from the nearest label
		var width		= Math.min(Math.max(100, shape.bounds.width()), 200);
		var center 		= this.getCenterPosition( nearestLabel.node );
		center.x		-= (width/2);
		var propId		= prop.prefix() + "-" + prop.id();

		// Set the config values for the TextField/Area
		var config 		= 	{
								renderTo	: htmlCont,
								value		: shape.properties[propId],
								x			: (center.x < 10) ? 10 : center.x,
								y			: center.y,
								width		: width,
								style		: 'position:absolute', 
								allowBlank	: prop.optional(), 
								maxLength	: prop.length(),
								emptyText	: prop.title(),
								cls			: 'x_form_text_set_absolute'
							}
		
		// Depending on the property, generate 
		// ether an TextArea or TextField
		if(prop.wrapLines()) {
			
			config.y 		-= (60/2);
			config['grow']	= true;
			this.shownTextField = new Ext.form.TextArea(config);
		} else {
			
			config.y -= (20/2);
			
			this.shownTextField = new Ext.form.TextField(config);
		}
		
		//focus
		this.shownTextField.focus();
		
		// Define event handler
		//	Blur 	-> Destroy
		//	Change 	-> Set new values					
		this.shownTextField.on( 'blur', 	this.destroy.bind(this) )
		this.shownTextField.on( 'change', 	function(node, value){ 
			var currentEl 	= shape;
			var oldValue	= currentEl.properties[propId]; 
			var newValue	= value;
			var facade		= this.facade;
			
			if (oldValue != newValue) {
				// Implement the specific command for property change
				var commandClass = ORYX.Core.Command.extend({
					construct: function(){
						this.el = currentEl;
						this.propId = propId;
						this.oldValue = oldValue;
						this.newValue = newValue;
						this.facade = facade;
					},
					execute: function(){
						this.el.setProperty(this.propId, this.newValue);
						//this.el.update();
						this.facade.setSelection([this.el]);
						this.facade.getCanvas().update();
						this.facade.updateSelection();
					},
					rollback: function(){
						this.el.setProperty(this.propId, this.oldValue);
						//this.el.update();
						this.facade.setSelection([this.el]);
						this.facade.getCanvas().update();
						this.facade.updateSelection();
					}
				})
				// Instanciated the class
				var command = new commandClass();
				
				// Execute the command
				this.facade.executeCommands([command]);
			}
		}.bind(this) )

		// Diable the keydown in the editor (that when hitting the delete button, the shapes not get deleted)
		this.facade.disableEvent(ORYX.CONFIG.EVENT_KEYDOWN);
		
	},
	
	getCenterPosition: function(svgNode){
		
		if (!svgNode) { return {x:0, y:0} }
		
		var center 		= {x: 0, y:0 };
		var trans,scale,transLocal,bounds;
		var useParent = false;
		try {
			
			if (('hidden' === svgNode.getAttributeNS(null, 'visibility')&&svgNode.childNodes.length>0)
				||svgNode.childNodes.length === 0) {
				useParent = true;
			}
			
			var el 		= useParent ? svgNode.parentNode : svgNode;
			
			trans 		= el.getTransformToElement(this.facade.getCanvas().rootNode.lastChild);
			scale 		= this.facade.getCanvas().rootNode.lastChild.getScreenCTM();
			transLocal 	= el.getTransformToElement(el.parentNode);
		} catch(e){
			return {x:0, y:0}
		}
		
		center.x 	= trans.e - transLocal.e;
		center.y 	= trans.f - transLocal.f;
		
		
		try {
			bounds = svgNode.getBBox();
			
			if (!useParent&&!(bounds.x<-1000)) {
				bounds.y -= 1;
			} else {
				bounds = {x:Number(svgNode.getAttribute('x')), y:Number(svgNode.getAttribute('y')), width:0, height:0};
			}
		} catch(e){
			bounds = {x:Number(svgNode.getAttribute('x')), y:Number(svgNode.getAttribute('y')), width:0, height:0};
		}
		
		center.x += bounds.x;
		center.y += bounds.y;
			
		center.x += bounds.width/2;
		center.y += bounds.height/2;
						
		center.x *= scale.a;
		center.y *= scale.d;
		
		return center;			
	},
	
	hide: function(e){
		if (this.shownTextField && (!e || !this.shownTextField.el || e.target !== this.shownTextField.el.dom)) {
			this.shownTextField.onBlur();
		}
	},
	
	destroy: function(e){
		if( this.shownTextField ){
			this.shownTextField.destroy(); 
			delete this.shownTextField; 
			
			this.facade.enableEvent(ORYX.CONFIG.EVENT_KEYDOWN);
		}
	}
});
/**
 * Copyright (c) 2008
 * Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/


/**
 * This plugin offer the functionality of undo/redo
 * Therewith the command pattern is used.
 * 
 * A Plugin which want that the changes could get undo/redo has 
 * to implement a command-class (which implements the method .execute(), .rollback()).
 * Those instance of class must be execute thru the facade.executeCommands(). If so,
 * those command get stored here in the undo/redo stack and can get reset/restore.
 *
 **/

if (!ORYX.Plugins) 
    ORYX.Plugins = new Object();

ORYX.Plugins.Undo = Clazz.extend({
	
	// Defines the facade
    facade		: undefined,
    
	// Defines the undo/redo Stack
	undoStack	: [],
	redoStack	: [],
	
	// Constructor 
    construct: function(facade){
    
        this.facade = facade;     
		
		// Offers the functionality of undo                
        this.facade.offer({
			name			: ORYX.I18N.Undo.undo,
			description		: ORYX.I18N.Undo.undoDesc,
			icon			: ORYX.PATH + "images/arrow_undo.png",
			keyCodes: [{
					metaKeys: [ORYX.CONFIG.META_KEY_META_CTRL],
					keyCode: 90,
					keyAction: ORYX.CONFIG.KEY_ACTION_DOWN
				}
		 	],
			functionality	: this.doUndo.bind(this),
			group			: ORYX.I18N.Undo.group,
			isEnabled		: function(){ return this.undoStack.length > 0 }.bind(this),
			index			: 0
		}); 

		// Offers the functionality of redo
        this.facade.offer({
			name			: ORYX.I18N.Undo.redo,
			description		: ORYX.I18N.Undo.redoDesc,
			icon			: ORYX.PATH + "images/arrow_redo.png",
			keyCodes: [{
					metaKeys: [ORYX.CONFIG.META_KEY_META_CTRL],
					keyCode: 89,
					keyAction: ORYX.CONFIG.KEY_ACTION_DOWN
				}
		 	],
			functionality	: this.doRedo.bind(this),
			group			: ORYX.I18N.Undo.group,
			isEnabled		: function(){ return this.redoStack.length > 0 }.bind(this),
			index			: 1
		}); 
		
		// Register on event for executing commands --> store all commands in a stack		 
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_EXECUTE_COMMANDS, this.handleExecuteCommands.bind(this) );
    	
	},
	
	/**
	 * Stores all executed commands in a stack
	 * 
	 * @param {Object} evt
	 */
	handleExecuteCommands: function( evt ){
		
		// If the event has commands
		if( !evt.commands ){ return }
		
		// Add the commands to a undo stack ...
		this.undoStack.push( evt.commands );
		// ...and delete the redo stack
		this.redoStack = [];
		
		// Update
		this.facade.getCanvas().update();
		this.facade.updateSelection();
		
	},
	
	/**
	 * Does the undo
	 * 
	 */
	doUndo: function(){
		
		// Get the last commands
		var lastCommands = this.undoStack.pop();
		
		if( lastCommands ){
			// Add the commands to the redo stack
			this.redoStack.push( lastCommands );
			
			// Rollback every command
			for(var i=lastCommands.length-1; i>=0; --i){
				lastCommands[i].rollback();
			}
					
			// Update and refresh the canvas
			//this.facade.getCanvas().update();
			//this.facade.updateSelection();
			this.facade.raiseEvent({
				type 	: ORYX.CONFIG.EVENT_UNDO_ROLLBACK, 
				commands: lastCommands
			});
			
			// Update
			this.facade.getCanvas().update();
			this.facade.updateSelection();
		}
	},
	
	/**
	 * Does the redo
	 * 
	 */
	doRedo: function(){
		
		// Get the last commands from the redo stack
		var lastCommands = this.redoStack.pop();
		
		if( lastCommands ){
			// Add this commands to the undo stack
			this.undoStack.push( lastCommands );
			
			// Execute those commands
			lastCommands.each(function(command){
				command.execute();
			});
				
			// Update and refresh the canvas		
			//this.facade.getCanvas().update();
			//this.facade.updateSelection();
			this.facade.raiseEvent({
				type 	: ORYX.CONFIG.EVENT_UNDO_EXECUTE, 
				commands: lastCommands
			});
			
			// Update
			this.facade.getCanvas().update();
			this.facade.updateSelection();
		}
	}
	
});
/**
 * Copyright (c) 2008
 * Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if(!ORYX.Plugins)
	ORYX.Plugins = new Object();

/**
 * Supports EPCs by offering a syntax check and export and import ability..
 * 
 * 
 */
ORYX.Plugins.ProcessLink = Clazz.extend({

	facade: undefined,

	/**
	 * Offers the plugin functionality:
	 * 
	 */
	construct: function(facade) {

		this.facade = facade;
		
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_PROPERTY_CHANGED, this.propertyChanged.bind(this) );
		
	},


	/**
	 * 
	 * @param {Object} option
	 */
	propertyChanged: function( option, node){

		if( option.name !== "oryx-refuri" || !node instanceof ORYX.Core.Node ){ return }
		
		
		if( option.value && option.value.length > 0 && option.value != "undefined"){
			
			this.show( node, option.value );
					
		} else {

			this.hide( node );

		}				

	},
	
	/**
	 * Shows the Link for a particular shape with a specific url
	 * 
	 * @param {Object} shape
	 * @param {Object} url
	 */
	show: function( shape, url){

		
		// Generate the svg-representation of a link
		var link  = ORYX.Editor.graft("http://www.w3.org/2000/svg", null ,
					[ 'a',
						{'target': '_blank'},
						['path', 
							{ "stroke-width": 1.0, "stroke":"#00DD00", "fill": "#00AA00", "d":  "M3,3 l0,-2.5 l7.5,0 l0,-2.5 l7.5,4.5 l-7.5,3.5 l0,-2.5 l-8,0", "line-captions": "round"}
						]
					]);

		var link  = ORYX.Editor.graft("http://www.w3.org/2000/svg", null ,		
						[ 'a',
							{'target': '_blank'},
							['path', { "style": "fill:#92BFFC;stroke:#000000;stroke-linecap:round;stroke-linejoin:round;stroke-width:0.72", "d": "M0 1.44 L0 15.05 L11.91 15.05 L11.91 5.98 L7.37 1.44 L0 1.44 Z"}],
							['path', { "style": "stroke:#000000;stroke-linecap:round;stroke-linejoin:round;stroke-width:0.72;fill:none;", "transform": "translate(7.5, -8.5)", "d": "M0 10.51 L0 15.05 L4.54 15.05"}],
							['path', { "style": "fill:#f28226;stroke:#000000;stroke-linecap:round;stroke-linejoin:round;stroke-width:0.72", "transform": "translate(-3, -1)", "d": "M0 8.81 L0 13.06 L5.95 13.06 L5.95 15.05 A50.2313 50.2313 -175.57 0 0 10.77 11.08 A49.9128 49.9128 -1.28 0 0 5.95 6.54 L5.95 8.81 L0 8.81 Z"}],
						]);

	/*
	 * 
	 * 					[ 'a',
						{'target': '_blank'},
						['path', { "style": "fill:none;stroke-width:0.5px; stroke:#000000", "d": "M7,4 l0,2"}],
						['path', { "style": "fill:none;stroke-width:0.5px; stroke:#000000", "d": "M4,8 l-2,0 l0,6"}],
						['path', { "style": "fill:none;stroke-width:0.5px; stroke:#000000", "d": "M10,8 l2,0 l0,6"}],
						['rect', { "style": "fill:#96ff96;stroke:#000000;stroke-width:1", "width": 6, "height": 4, "x": 4, "y": 0}],
						['rect', { "style": "fill:#ffafff;stroke:#000000;stroke-width:1", "width": 6, "height": 4, "x": 4, "y": 6}],
						['rect', { "style": "fill:#96ff96;stroke:#000000;stroke-width:1", "width": 6, "height": 4, "x": 0, "y": 12}],
						['rect', { "style": "fill:#96ff96;stroke:#000000;stroke-width:1", "width": 6, "height": 4, "x": 8, "y": 12}],
						['rect', { "style": "fill:none;stroke:none;pointer-events:all", "width": 14, "height": 16, "x": 0, "y": 0}]
					]);
	 */
		
		// Set the link with the special namespace
		link.setAttributeNS("http://www.w3.org/1999/xlink", "xlink:href", url);
		
		
		// Shows the link in the overlay					
		this.facade.raiseEvent({
					type: 			ORYX.CONFIG.EVENT_OVERLAY_SHOW,
					id: 			"arissupport.urlref_" + shape.id,
					shapes: 		[shape],
					node:			link,
					nodePosition:	"SE"
				});	
							
	},	

	/**
	 * Hides the Link for a particular shape
	 * 
	 * @param {Object} shape
	 */
	hide: function( shape ){

		this.facade.raiseEvent({
					type: 			ORYX.CONFIG.EVENT_OVERLAY_HIDE,
					id: 			"arissupport.urlref_" + shape.id
				});	
							
	}		
});/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

Array.prototype.insertFrom = function(from, to){
	to 			= Math.max(0, to);
	from 		= Math.min( Math.max(0, from), this.length-1 );
		
	var el 		= this[from];
	var old 	= this.without(el);
	var newA 	= old.slice(0, to);
	newA.push(el);
	if(old.length > to ){
		newA 	= newA.concat(old.slice(to))
	};
	return newA;
}

if(!ORYX.Plugins)
	ORYX.Plugins = new Object();

ORYX.Plugins.Arrangement = ORYX.Plugins.AbstractPlugin.extend({

	facade: undefined,

	construct: function(facade) {
		this.facade = facade;

		// Z-Ordering
		/** Hide for SIGNAVIO 
		
		this.facade.offer({
			'name':ORYX.I18N.Arrangement.btf,
			'functionality': this.setZLevel.bind(this, this.setToTop),
			'group': ORYX.I18N.Arrangement.groupZ,
			'icon': ORYX.PATH + "images/shape_move_front.png",
			'description': ORYX.I18N.Arrangement.btfDesc,
			'index': 1,
			'minShape': 1});
			
		this.facade.offer({
			'name':ORYX.I18N.Arrangement.btb,
			'functionality': this.setZLevel.bind(this, this.setToBack),
			'group': ORYX.I18N.Arrangement.groupZ,
			'icon': ORYX.PATH + "images/shape_move_back.png",
			'description': ORYX.I18N.Arrangement.btbDesc,
			'index': 2,
			'minShape': 1});

		this.facade.offer({
			'name':ORYX.I18N.Arrangement.bf,
			'functionality': this.setZLevel.bind(this, this.setForward),
			'group': ORYX.I18N.Arrangement.groupZ,
			'icon': ORYX.PATH + "images/shape_move_forwards.png",
			'description': ORYX.I18N.Arrangement.bfDesc,
			'index': 3,
			'minShape': 1});

		this.facade.offer({
			'name':ORYX.I18N.Arrangement.bb,
			'functionality': this.setZLevel.bind(this, this.setBackward),
			'group': ORYX.I18N.Arrangement.groupZ,
			'icon': ORYX.PATH + "images/shape_move_backwards.png",
			'description': ORYX.I18N.Arrangement.bbDesc,
			'index': 4,
			'minShape': 1});

		// Aligment
		this.facade.offer({
			'name':ORYX.I18N.Arrangement.ab,
			'functionality': this.alignShapes.bind(this, [ORYX.CONFIG.EDITOR_ALIGN_BOTTOM]),
			'group': ORYX.I18N.Arrangement.groupA,
			'icon': ORYX.PATH + "images/shape_align_bottom.png",
			'description': ORYX.I18N.Arrangement.abDesc,
			'index': 1,
			'minShape': 2});



		this.facade.offer({
			'name':ORYX.I18N.Arrangement.at,
			'functionality': this.alignShapes.bind(this, [ORYX.CONFIG.EDITOR_ALIGN_TOP]),
			'group': ORYX.I18N.Arrangement.groupA,
			'icon': ORYX.PATH + "images/shape_align_top.png",
			'description': ORYX.I18N.Arrangement.atDesc,
			'index': 3,
			'minShape': 2});

		this.facade.offer({
			'name':ORYX.I18N.Arrangement.al,
			'functionality': this.alignShapes.bind(this, [ORYX.CONFIG.EDITOR_ALIGN_LEFT]),
			'group': ORYX.I18N.Arrangement.groupA,
			'icon': ORYX.PATH + "images/shape_align_left.png",
			'description': ORYX.I18N.Arrangement.alDesc,
			'index': 4,
			'minShape': 2});

		this.facade.offer({
			'name':ORYX.I18N.Arrangement.ar,
			'functionality': this.alignShapes.bind(this, [ORYX.CONFIG.EDITOR_ALIGN_RIGHT]),
			'group': ORYX.I18N.Arrangement.groupA,
			'icon': ORYX.PATH + "images/shape_align_right.png",
			'description': ORYX.I18N.Arrangement.arDesc,
			'index': 6,
			'minShape': 2});

		**/
		
		this.facade.offer({
			'name':ORYX.I18N.Arrangement.am,
			'functionality': this.alignShapes.bind(this, [ORYX.CONFIG.EDITOR_ALIGN_MIDDLE]),
			'group': ORYX.I18N.Arrangement.groupA,
			'icon': ORYX.PATH + "images/shape_align_middle.png",
			'description': ORYX.I18N.Arrangement.amDesc,
			'index': 1,
			'minShape': 2});
			
		this.facade.offer({
			'name':ORYX.I18N.Arrangement.ac,
			'functionality': this.alignShapes.bind(this, [ORYX.CONFIG.EDITOR_ALIGN_CENTER]),
			'group': ORYX.I18N.Arrangement.groupA,
			'icon': ORYX.PATH + "images/shape_align_center.png",
			'description': ORYX.I18N.Arrangement.acDesc,
			'index': 2,
			'minShape': 2});

			
		this.facade.offer({
			'name':ORYX.I18N.Arrangement.as,
			'functionality': this.alignShapes.bind(this, [ORYX.CONFIG.EDITOR_ALIGN_SIZE]),
			'group': ORYX.I18N.Arrangement.groupA,
			'icon': ORYX.PATH + "images/shape_align_size.png",
			'description': ORYX.I18N.Arrangement.asDesc,
			'index': 3,
			'minShape': 2});
			


		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_ARRANGEMENT_TOP, 	this.setZLevel.bind(this, this.setToTop)	);
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_ARRANGEMENT_BACK, 	this.setZLevel.bind(this, this.setToBack)	);
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_ARRANGEMENT_FORWARD, 	this.setZLevel.bind(this, this.setForward)	);
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_ARRANGEMENT_BACKWARD, 	this.setZLevel.bind(this, this.setBackward)	);						

	
	},
	
	onSelectionChanged: function(elemnt){
		var selection = this.facade.getSelection();
		if (selection.length === 1 && selection[0] instanceof ORYX.Core.Edge) {
			this.setToTop(selection);
		}
	},
	
	setZLevel:function(callback, event){
			
		//Command-Pattern for dragging one docker
		var zLevelCommand = ORYX.Core.Command.extend({
			construct: function(callback, elements, facade){
				this.callback 	= callback;
				this.elements 	= elements;
				// For redo, the previous elements get stored
				this.elAndIndex	= elements.map(function(el){ return {el:el, previous:el.parent.children[el.parent.children.indexOf(el)-1]} })
				this.facade		= facade;
			},			
			execute: function(){
				
				// Call the defined z-order callback with the elements
				this.callback( this.elements )			
				this.facade.setSelection( this.elements )
			},
			rollback: function(){
				
				// Sort all elements on the index of there containment
				var sortedEl =	this.elAndIndex.sortBy( function( el ) {
									var value 	= el.el;
									var t 		= $A(value.node.parentNode.childNodes);
									return t.indexOf(value.node);
								}); 
				
				// Every element get setted back bevor the old previous element
				for(var i=0; i<sortedEl.length; i++){
					var el			= sortedEl[i].el;
					var p 			= el.parent;			
					var oldIndex 	= p.children.indexOf(el);
					var newIndex 	= p.children.indexOf(sortedEl[i].previous);
					newIndex		= newIndex || 0
					p.children 	= p.children.insertFrom(oldIndex, newIndex)			
					el.node.parentNode.insertBefore(el.node, el.node.parentNode.childNodes[newIndex+1]);
				}

				// Reset the selection
				this.facade.setSelection( this.elements )
			}
		});
	
		// Instanziate the dockCommand
		var command = new zLevelCommand(callback, this.facade.getSelection(), this.facade);
		if( event.excludeCommand ){
			command.execute();
		} else {
			this.facade.executeCommands( [command] );	
		}
		
	},

	setToTop: function(elements) {

		// Sortieren des Arrays nach dem Index des SVGKnotens im Bezug auf dem Elternknoten.
		var tmpElem =  elements.sortBy( function(value, index) {
			var t = $A(value.node.parentNode.childNodes);
			return t.indexOf(value.node);
		});
		// Sortiertes Array wird nach oben verschoben.
		tmpElem.each( function(value) {
			var p = value.parent;
			if (p.children.last() === value){
				return;
			}
			p.children = p.children.without( value )
			p.children.push(value);
			value.node.parentNode.appendChild(value.node);			
		});
	},

	setToBack: function(elements) {
		// Sortieren des Arrays nach dem Index des SVGKnotens im Bezug auf dem Elternknoten.
		var tmpElem =  elements.sortBy( function(value, index) {
			var t = $A(value.node.parentNode.childNodes);
			return t.indexOf(value.node);
		});

		tmpElem = tmpElem.reverse();

		// Sortiertes Array wird nach unten verschoben.
		tmpElem.each( function(value) {
			var p = value.parent
			p.children = p.children.without( value )
			p.children.unshift( value );
			value.node.parentNode.insertBefore(value.node, value.node.parentNode.firstChild);
		});
		
		
	},

	setBackward: function(elements) {
		// Sortieren des Arrays nach dem Index des SVGKnotens im Bezug auf dem Elternknoten.
		var tmpElem =  elements.sortBy( function(value, index) {
			var t = $A(value.node.parentNode.childNodes);
			return t.indexOf(value.node);
		});

		// Reverse the elements
		tmpElem = tmpElem.reverse();
		
		// Delete all Nodes who are the next Node in the nodes-Array
		var compactElem = tmpElem.findAll(function(el) {return !tmpElem.some(function(checkedEl){ return checkedEl.node == el.node.previousSibling})});
		
		// Sortiertes Array wird nach eine Ebene nach oben verschoben.
		compactElem.each( function(el) {
			if(el.node.previousSibling === null) { return; }
			var p 		= el.parent;			
			var index 	= p.children.indexOf(el);
			p.children 	= p.children.insertFrom(index, index-1)			
			el.node.parentNode.insertBefore(el.node, el.node.previousSibling);
		});
		
		
	},

	setForward: function(elements) {
		// Sortieren des Arrays nach dem Index des SVGKnotens im Bezug auf dem Elternknoten.
		var tmpElem =  elements.sortBy( function(value, index) {
			var t = $A(value.node.parentNode.childNodes);
			return t.indexOf(value.node);
		});


		// Delete all Nodes who are the next Node in the nodes-Array
		var compactElem = tmpElem.findAll(function(el) {return !tmpElem.some(function(checkedEl){ return checkedEl.node == el.node.nextSibling})});
	
			
		// Sortiertes Array wird eine Ebene nach unten verschoben.
		compactElem.each( function(el) {
			var nextNode = el.node.nextSibling		
			if(nextNode === null) { return; }
			var index 	= el.parent.children.indexOf(el);
			var p 		= el.parent;
			p.children 	= p.children.insertFrom(index, index+1)			
			el.node.parentNode.insertBefore(nextNode, el.node);
		});
	},


	alignShapes: function(way) {

		var elements = this.facade.getSelection();

		// Set the elements to all Top-Level elements
		elements = this.facade.getCanvas().getShapesWithSharedParent(elements);
		// Get only nodes
		elements = elements.findAll(function(value) {
			return (value instanceof ORYX.Core.Node)
		});
		// Delete all attached intermediate events from the array
		elements = elements.findAll(function(value) {
			var d = value.getIncomingShapes()
			return d.length == 0 || !elements.include(d[0])
		});
		if(elements.length < 2) { return; }

		// get bounds of all shapes.
		var bounds = elements[0].absoluteBounds().clone();
		elements.each(function(shape) {
		        bounds.include(shape.absoluteBounds().clone());
		});
		
		// get biggest width and heigth
		var maxWidth = 0;
		var maxHeight = 0;
		elements.each(function(shape){
			maxWidth = Math.max(shape.bounds.width(), maxWidth);
			maxHeight = Math.max(shape.bounds.height(), maxHeight);
		});

		var commandClass = ORYX.Core.Command.extend({
			construct: function(elements, bounds, maxHeight, maxWidth, way, plugin){
				this.elements = elements;
				this.bounds = bounds;
				this.maxHeight = maxHeight;
				this.maxWidth = maxWidth;
				this.way = way;
				this.facade = plugin.facade;
				this.plugin = plugin;
				this.orgPos = [];
			},
			setBounds: function(shape, maxSize) {
				if(!maxSize)
					maxSize = {width: ORYX.CONFIG.MAXIMUM_SIZE, height: ORYX.CONFIG.MAXIMUM_SIZE};

				if(!shape.bounds) { throw "Bounds not definined." }
				
				var newBounds = {
                    a: {x: shape.bounds.upperLeft().x - (this.maxWidth - shape.bounds.width())/2,
                        y: shape.bounds.upperLeft().y - (this.maxHeight - shape.bounds.height())/2},
                    b: {x: shape.bounds.lowerRight().x + (this.maxWidth - shape.bounds.width())/2,
                        y: shape.bounds.lowerRight().y + (this.maxHeight - shape.bounds.height())/2}
	            }
				
				/* If the new width of shape exceeds the maximum width, set width value to maximum. */
				if(this.maxWidth > maxSize.width) {
					newBounds.a.x = shape.bounds.upperLeft().x - 
									(maxSize.width - shape.bounds.width())/2;
					
					newBounds.b.x =	shape.bounds.lowerRight().x + (maxSize.width - shape.bounds.width())/2
				}
				
				/* If the new height of shape exceeds the maximum height, set height value to maximum. */
				if(this.maxHeight > maxSize.height) {
					newBounds.a.y = shape.bounds.upperLeft().y - 
									(maxSize.height - shape.bounds.height())/2;
					
					newBounds.b.y =	shape.bounds.lowerRight().y + (maxSize.height - shape.bounds.height())/2
				}
				
				/* set bounds of shape */
				shape.bounds.set(newBounds);
				
			},			
			execute: function(){
				// align each shape according to the way that was specified.
				this.elements.each(function(shape, index) {
					this.orgPos[index] = shape.bounds.upperLeft();
					
					var relBounds = this.bounds.clone();
					var newCoordinates;
					if (shape.parent && !(shape.parent instanceof ORYX.Core.Canvas) ) {
						var upL = shape.parent.absoluteBounds().upperLeft();
						relBounds.moveBy(-upL.x, -upL.y);
					}
					
					switch (this.way) {
						// align the shapes in the requested way.
						case ORYX.CONFIG.EDITOR_ALIGN_BOTTOM:
			                newCoordinates = {
								x: shape.bounds.upperLeft().x,
								y: relBounds.b.y - shape.bounds.height()
							}; break;
		
				        case ORYX.CONFIG.EDITOR_ALIGN_MIDDLE:
			                newCoordinates = {
								x: shape.bounds.upperLeft().x,
								y: (relBounds.a.y + relBounds.b.y - shape.bounds.height()) / 2
							}; break;
		
				        case ORYX.CONFIG.EDITOR_ALIGN_TOP:
			                newCoordinates = {
								x: shape.bounds.upperLeft().x,
								y: relBounds.a.y
							}; break;
		
				        case ORYX.CONFIG.EDITOR_ALIGN_LEFT:
			                newCoordinates = {
								x: relBounds.a.x,
								y: shape.bounds.upperLeft().y
							}; break;
		
				        case ORYX.CONFIG.EDITOR_ALIGN_CENTER:
			                newCoordinates = {
								x: (relBounds.a.x + relBounds.b.x - shape.bounds.width()) / 2,
								y: shape.bounds.upperLeft().y
							}; break;
		
				        case ORYX.CONFIG.EDITOR_ALIGN_RIGHT:
			                newCoordinates = {
								x: relBounds.b.x - shape.bounds.width(),
								y: shape.bounds.upperLeft().y
							}; break;
							
						case ORYX.CONFIG.EDITOR_ALIGN_SIZE:
							if(shape.isResizable) {
								this.orgPos[index] = {a: shape.bounds.upperLeft(), b: shape.bounds.lowerRight()};
								this.setBounds(shape, shape.maximumSize);
							}
							break;
					}
					
					if (newCoordinates){
						var offset =  {
							x: shape.bounds.upperLeft().x - newCoordinates.x,
							y: shape.bounds.upperLeft().y - newCoordinates.y
						}
						// Set the new position
						shape.bounds.moveTo(newCoordinates);
						this.plugin.layoutEdges(shape, shape.getAllDockedShapes(),offset);
						//shape.update()
					}			
				}.bind(this));
		
				//this.facade.getCanvas().update();
				//this.facade.updateSelection();
			},
			rollback: function(){
				this.elements.each(function(shape, index) {
					if (this.way == ORYX.CONFIG.EDITOR_ALIGN_SIZE) {
						if(shape.isResizable) {shape.bounds.set(this.orgPos[index]);}
					} else {shape.bounds.moveTo(this.orgPos[index]);}
				}.bind(this));
				
				//this.facade.getCanvas().update();
				//this.facade.updateSelection();
			}
		})
		
		var command = new commandClass(elements, bounds, maxHeight, maxWidth, parseInt(way), this);
		
		this.facade.executeCommands([command]);	
	}
});/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/
if (!ORYX.Plugins) 
    ORYX.Plugins = new Object();

ORYX.Plugins.Save = Clazz.extend({
	
    facade: undefined,
	
	processURI: undefined,
	
	changeSymbol : "*",
	
    construct: function(facade){
		this.facade = facade;
		
		this.facade.offer({
			'name': ORYX.I18N.Save.save,
			'functionality': this.save.bind(this,false),
			'group': ORYX.I18N.Save.group,
			'icon': ORYX.PATH + "images/disk.png",
			'description': ORYX.I18N.Save.saveDesc,
			'index': 1,
			'minShape': 0,
			'maxShape': 0,
			keyCodes: [{
			 		metaKeys: [ORYX.CONFIG.META_KEY_META_CTRL],
					keyCode: 83, // s-Keycode
					keyAction: ORYX.CONFIG.KEY_ACTION_UP 
				}
			 ]
		});
		
		document.addEventListener("keydown", function(e){
			if (e.ctrlKey&&e.keyCode === 83){
				Event.stop(e);
			}
		}, false)
		
		
		/*this.facade.offer({
			'name': ORYX.I18N.Save.saveAs,
			'functionality': this.save.bind(this,true),
			'group': ORYX.I18N.Save.group,
			'icon': ORYX.PATH + "images/disk_multi.png",
			'description': ORYX.I18N.Save.saveAsDesc,
			'index': 2,
			'minShape': 0,
			'maxShape': 0
		});	*/
		
		window.onbeforeunload = this.onUnLoad.bind(this)
		
		this.changeDifference = 0;
		
		// Register on event for executing commands --> store all commands in a stack		 
		// --> Execute
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_UNDO_EXECUTE, function(){ this.changeDifference++; this.updateTitle(); }.bind(this) );
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_EXECUTE_COMMANDS, function(){ this.changeDifference++; this.updateTitle(); }.bind(this) );
		// --> Rollback
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_UNDO_ROLLBACK, function(){ this.changeDifference--; this.updateTitle(); }.bind(this) );
		
		//TODO very critical for load time performance!!!
		//this.serializedDOM = DataManager.__persistDOM(this.facade);
	},
	
	updateTitle: function(){
		
		var value = window.document.title || document.getElementsByTagName("title")[0].childNodes[0].nodeValue;
		
		if (this.changeDifference === 0 && value.startsWith(this.changeSymbol)){
			window.document.title = value.slice(1);
		} else if (this.changeDifference !== 0 && !value.startsWith(this.changeSymbol)){
			window.document.title = this.changeSymbol + "" + value;
		}
	},
	
	onUnLoad: function(){
		if(this.changeDifference !== 0 || (this.facade.getModelMetaData()['new'] && this.facade.getCanvas().getChildShapes().size() > 0)) {
			return ORYX.I18N.Save.unsavedData;
		}
		
	},
		
	
    saveSynchronously: function(forceNew, modelInfo){
		
		if (!modelInfo) {
			return;
		}
		
		var modelMeta = this.facade.getModelMetaData();
		var reqURI = modelMeta.modelHandler;


		// Get the stencilset
		var ss = this.facade.getStencilSets().values()[0]
		
		var typeTitle = ss.title();
		
		// Define Default values
		var name = (modelMeta["new"] && modelMeta.name === "") ? ORYX.I18N.Save.newProcess : modelInfo.name;
		var defaultData = {title:Signavio.Utils.escapeHTML(name||""), summary:Signavio.Utils.escapeHTML(modelInfo.description||""), type:typeTitle, url: reqURI, namespace: modelInfo.model.stencilset.namespace, comment: '' }
		
		// Create a Template
		var dialog = new Ext.XTemplate(		
					// TODO find some nice words here -- copy from above ;)
					'<form class="oryx_repository_edit_model" action="#" id="edit_model" onsubmit="return false;">',
									
						'<fieldset>',
							'<p class="description">' + ORYX.I18N.Save.dialogDesciption + '</p>',
							'<input type="hidden" name="namespace" value="{namespace}" />',
							'<p><label for="edit_model_title">' + ORYX.I18N.Save.dialogLabelTitle + '</label><input type="text" class="text" name="title" value="{title}" id="edit_model_title" onfocus="this.className = \'text activated\'" onblur="this.className = \'text\'"/></p>',
							'<p><label for="edit_model_summary">' + ORYX.I18N.Save.dialogLabelDesc + '</label><textarea rows="5" name="summary" id="edit_model_summary" onfocus="this.className = \'activated\'" onblur="this.className = \'\'">{summary}</textarea></p>',
							(modelMeta.versioning) ? '<p><label for="edit_model_comment">' + ORYX.I18N.Save.dialogLabelComment + '</label><textarea rows="5" name="comment" id="edit_model_comment" onfocus="this.className = \'activated\'" onblur="this.className = \'\'">{comment}</textarea></p>' : '',
							'<p><label for="edit_model_type">' + ORYX.I18N.Save.dialogLabelType + '</label><input type="text" name="type" class="text disabled" value="{type}" disabled="disabled" id="edit_model_type" /></p>',
							
						'</fieldset>',
					
					'</form>')
		
		// Create the callback for the template
		callback = function(form){

			    // raise loading enable event
		        /*this.facade.raiseEvent({
		            type: ORYX.CONFIG.EVENT_LOADING_ENABLE,
					text: ORYX.I18N.Save.saving
		        });*/

				var title 		= form.elements["title"].value.strip();
				title 			= title.length == 0 ? defaultData.title : title;
				
				var summary 	= form.elements["summary"].value.strip();	
				summary 		= summary.length == 0 ? defaultData.summary : summary;
				
				var namespace	= form.elements["namespace"].value.strip();
				namespace		= namespace.length == 0 ? defaultData.namespace : namespace;
				
				modelMeta.name = title;
				modelMeta.description = summary;
				modelMeta.parent = modelInfo.parent;
				modelMeta.namespace = namespace;
	        		
				//added changing title of page after first save, but with the changed flag
				if(!forceNew) window.document.title = this.changeSymbol + title + " | " + ORYX.CONFIG.APPNAME;
					
					
		        // Get json
				var json = this.facade.getJSON();
				
				var glossary = [];
				
				//Support for glossary
				if (this.facade.hasGlossaryExtension) {
					
					Ext.apply(json, ORYX.Core.AbstractShape.JSONHelper);
					var allNodes = json.getChildShapes(true);
					
					var orders = {};
					
					this.facade.getGlossary().each(function(entry){
						if ("undefined" == typeof orders[entry.shape.resourceId+"-"+entry.property.prefix()+"-"+entry.property.id()]){
							orders[entry.shape.resourceId+"-"+entry.property.prefix()+"-"+entry.property.id()] = 0;
						}
						// Add entry
						glossary.push({
							itemId		: entry.glossary,
			            	elementId	: entry.shape.resourceId,
			            	propertyId	: entry.property.prefix()+"-"+entry.property.id(),
				            order		: orders[entry.shape.resourceId+"-"+entry.property.prefix()+"-"+entry.property.id()]++
						});
						
						// Replace the property with the generated glossary url
						/*var rId = entry.shape.resourceId;
						var pKe = entry.property.id();
						for (var i=0, size=allNodes.length; i<size; ++i) {
							var sh = allNodes[i];
							if (sh.resourceId == rId) {
								for (var prop in sh.properties) {
									if (prop === pKe) {
										sh.properties[prop] = this.facade.generateGlossaryURL(entry.glossary, sh.properties[prop]);
										break;
									}
								}
								break;
							}
						}*/
						
						
						// Replace SVG
						if (entry.property.refToView() && entry.property.refToView().length > 0) {
							entry.property.refToView().each(function(ref){
								var node = $(entry.shape.id+""+ref);
								if (node)
									node.setAttribute("oryx:glossaryIds", entry.glossary + ";")
							})
						}
					}.bind(this))
					

					// Set the json as string
					json = json.serialize();

				} else {
					json = Ext.encode(json);
				}
				
				// Set the glossaries as string
				glossary = Ext.encode(glossary);
				
				var selection = this.facade.getSelection();
				this.facade.setSelection([]);

				// Get the serialized svg image source
		        var svgClone 	= this.facade.getCanvas().getSVGRepresentation(true);
				this.facade.setSelection(selection);
		        if (this.facade.getCanvas().properties["oryx-showstripableelements"] === false) {
		        	var stripOutArray = svgClone.getElementsByClassName("stripable-element");
		        	for (var i=stripOutArray.length-1; i>=0; i--) {
		        		stripOutArray[i].parentNode.removeChild(stripOutArray[i]);
		        	}
		        }
				  
				// Remove all forced stripable elements 
	        	var stripOutArray = svgClone.getElementsByClassName("stripable-element-force");
	        	for (var i=stripOutArray.length-1; i>=0; i--) {
	        		stripOutArray[i].parentNode.removeChild(stripOutArray[i]);
	        	}
				          
				// Parse dom to string
		        var svgDOM 	= DataManager.serialize(svgClone);
				
		        var params = {
		        		json_xml: json,
		        		svg_xml: svgDOM,
		        		name: title,
		        		type: defaultData.type,
		        		parent: modelMeta.parent,
		        		description: summary,
		        		glossary_xml: glossary,
		        		namespace: modelMeta.namespace,
		        		views: Ext.util.JSON.encode(modelMeta.views || [])
		        };
		        
				var success = false;
				
				var successFn = function(transport) {
					var loc = transport.getResponseHeader.location;
					if (!this.processURI && loc) {
						this.processURI = loc;
					}
	
					if( forceNew ){
						var resJSON = transport.responseText.evalJSON();
						
						var modelURL = location.href.substring(0, location.href.indexOf(location.search)) + '?id=' + resJSON.href.substring(7);
						var newURLWin = new Ext.Window({
							title:		ORYX.I18N.Save.savedAs, 
							bodyStyle:	"background:white;padding:10px", 
							width:		'auto', 
							height:		'auto',
							html:"<div style='font-weight:bold;margin-bottom:10px'>"+ORYX.I18N.Save.savedDescription+":</div><span><a href='" + modelURL +"' target='_blank'>" + modelURL + "</a></span>",
							buttons:[{text:'Ok',handler:function(){newURLWin.destroy()}}]
						});
						newURLWin.show();
						
						window.open(modelURL);
					}
	
					//show saved status
					/*this.facade.raiseEvent({
							type:ORYX.CONFIG.EVENT_LOADING_STATUS,
							text:ORYX.I18N.Save.saved
						});*/
						
					success = true;
					
					win.close();
				
					if (success) {
						// Reset changes
						this.changeDifference = 0;
						this.updateTitle();
						
						var resJSON = transport.responseText.evalJSON();
						if(resJSON.modelId) {
							modelMeta.modelId = resJSON.modelId;
						}
						
						if(modelMeta["new"]) {
							modelMeta["new"] = false;
						}
					}
					
					
					delete this.saving;
						
				}.bind(this);
				
				var failure = function(transport) {
						// raise loading disable event.
		                this.facade.raiseEvent({
		                    type: ORYX.CONFIG.EVENT_LOADING_DISABLE
		                });
						
						win.close();
						
						if(transport.status && transport.status === 401) {
							Ext.Msg.alert(ORYX.I18N.Oryx.title, ORYX.I18N.Save.notAuthorized).setIcon(Ext.Msg.WARNING).getDialog().setWidth(260).center().syncSize();
						} else if(transport.status && transport.status === 403) {
							Ext.Msg.alert(ORYX.I18N.Oryx.title, ORYX.I18N.Save.noRights).setIcon(Ext.Msg.WARNING).getDialog().setWidth(260).center().syncSize();
						} else if(transport.statusText === "transaction aborted") {
							Ext.Msg.alert(ORYX.I18N.Oryx.title, ORYX.I18N.Save.transAborted).setIcon(Ext.Msg.WARNING).getDialog().setWidth(260).center().syncSize();
						} else if(transport.statusText === "communication failure") {
							Ext.Msg.alert(ORYX.I18N.Oryx.title, ORYX.I18N.Save.comFailed).setIcon(Ext.Msg.WARNING).getDialog().setWidth(260).center().syncSize();
						} else {
							Ext.Msg.alert(ORYX.I18N.Oryx.title, ORYX.I18N.Save.failed).setIcon(Ext.Msg.WARNING).getDialog().setWidth(260).center().syncSize();
						}
						
						delete this.saving;
						
					}.bind(this);
				
				if(modelMeta["new"]) {	
					// Send the request out
					params.id = modelMeta.modelId;					
					this.sendSaveRequest('POST', reqURI, params, true, successFn, failure);
				} else if(forceNew) {
					this.sendSaveRequest('POST', reqURI, params, true, successFn, failure);
				} else {						
					params.id = modelMeta.modelId;
					// Send the request out
					this.sendSaveRequest('PUT', reqURI, params, false, successFn, failure);
				}
		}.bind(this);
			
		// Create a new window				
		win = new Ext.Window({
			id		: 'Propertie_Window',
	        width	: 'auto',
	        height	: 'auto',
		    title	: forceNew ? ORYX.I18N.Save.saveAsTitle : ORYX.I18N.Save.save,
	        modal	: true,
	        resize	: false,
			bodyStyle: 'background:#FFFFFF',
	        html	: dialog.apply( defaultData ),
	        defaultButton: 0,
			buttons:[{
				text: ORYX.I18N.Save.saveBtn,
				handler: function(){
				
					win.body.mask(ORYX.I18N.Save.pleaseWait, "x-waiting-box");
					
					window.setTimeout(function(){
						
						callback($('edit_model'));
						
					}.bind(this), 10);			
				},
				listeners:{
					render:function(){
						this.focus();
					}
				}
			},{
            	text: ORYX.I18N.Save.close,
            	handler: function(){
	               win.close();
            	}.bind(this)
			}],
			listeners: {
				close: function(){					
                	win.destroy();
					delete this.saving;
				}.bind(this)
			}
	    });
				      
		win.show();
    },
	
	/**
	 * Get the model data and call the success callback
	 * 
	 * @param {Function} success Success callback
	 */
	retrieveModelData: function(success){
		
		var onComplete = function(){
			Ext.getBody().unmask();
		}
		
		var modelMeta = this.facade.getModelMetaData();
		
		new Ajax.Request("../service/model/" + modelMeta.modelId + "/json", {
            method: 'get',
            asynchronous: true,
			requestHeaders: {
				"Accept":"application/json"
			},
			encoding: 'UTF-8',
			onSuccess: (function(transport) {
				modelInfo = (transport.responseText||"{}").evalJSON();
				onComplete();
				success(modelInfo);
			}).bind(this),
			onException: function(){
				// raise loading disable event.
                this.facade.raiseEvent({
                    type: ORYX.CONFIG.EVENT_LOADING_DISABLE
                });

				delete this.saving;
				onComplete();
				Ext.Msg.alert(ORYX.I18N.Oryx.title, ORYX.I18N.Save.exception).setIcon(Ext.Msg.ERROR).getDialog().setWidth(260).syncSize();
			}.bind(this),
			onFailure: (function(transport) {
				// raise loading disable event.
                this.facade.raiseEvent({
                    type: ORYX.CONFIG.EVENT_LOADING_DISABLE
                });
				
				delete this.saving;
				onComplete();
				Ext.Msg.alert(ORYX.I18N.Oryx.title, ORYX.I18N.Save.failed).setIcon(Ext.Msg.ERROR).getDialog().setWidth(260).syncSize();
			}).bind(this),
			on401: (function(transport) {
				// raise loading disable event.
                this.facade.raiseEvent({
                    type: ORYX.CONFIG.EVENT_LOADING_DISABLE
                });
				
				delete this.saving;
				onComplete();
				Ext.Msg.alert(ORYX.I18N.Oryx.title, ORYX.I18N.Save.notAuthorized).setIcon(Ext.Msg.WARNING).getDialog().setWidth(260).syncSize();
			}).bind(this),
			on403: (function(transport) {
				// raise loading disable event.
                this.facade.raiseEvent({
                    type: ORYX.CONFIG.EVENT_LOADING_DISABLE
                });
				
				delete this.saving;
				onComplete();
				Ext.Msg.alert(ORYX.I18N.Oryx.title, ORYX.I18N.Save.noRights).setIcon(Ext.Msg.ERROR).getDialog().setWidth(260).syncSize();
			}).bind(this)
		});
	},
	
	sendSaveRequest: function(method, url, params, forceNew, success, failure){
		
		var saveUri;
		if(forceNew == false) {
			saveUri = "../service/model/" + params.id + "/save";
		} else {
			saveUri = "../service/model/new";
		}
		
		// Send the request to the server.
		Ext.Ajax.request({
			url				: saveUri,
			method			: method,
			timeout			: 1800000,
			disableCaching	: true,
			headers			: {'Accept':"application/json", 'Content-Type':'charset=UTF-8'},
			params			: params,
			success			: success,
			failure			: failure
		});
	},
    
    /**
     * Saves the current process to the server.
     */
    save: function(forceNew, event){
        
		// Check if currently is saving
		if (this.saving){
			return;
		}
		
		this.saving = true;
		
		this.facade.raiseEvent({
			type: ORYX.CONFIG.EVENT_ABOUT_TO_SAVE
		});
		
        // ... save synchronously
        window.setTimeout((function(){
            
			var meta = this.facade.getModelMetaData();
			// Check if new...
			if (meta["new"]){
         		this.saveSynchronously(forceNew, meta);
			} else {
				Ext.getBody().mask(ORYX.I18N.Save.retrieveData, "x-waiting-box");
				// ...otherwise, get the current model data first.
				this.retrieveModelData(this.saveSynchronously.bind(this, forceNew))
			}
        }).bind(this), 10);

        
        return true;
    }	
});
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

/**
 * @namespace Oryx name space for plugins
 * @name ORYX.Plugins
*/
if(!ORYX.Plugins)
	ORYX.Plugins = new Object();

/**
 * The view plugin offers all of zooming functionality accessible over the 
 * tool bar. This are zoom in, zoom out, zoom to standard, zoom fit to model.
 * 
 * @class ORYX.Plugins.View
 * @extends Clazz
 * @param {Object} facade The editor facade for plugins.
*/
ORYX.Plugins.View = {
	/** @lends ORYX.Plugins.View.prototype */
	facade: undefined,

	construct: function(facade, ownPluginData) {
		this.facade = facade;
		//Standard Values
		this.zoomLevel = 1.0;
		this.maxFitToScreenLevel=1.5;
		this.minZoomLevel = 0.1;
		this.maxZoomLevel = 2.5;
		this.diff=5; //difference between canvas and view port, s.th. like toolbar??
		
		//Read properties
		ownPluginData.properties.each( function(property) {			
			if (property.zoomLevel) {this.zoomLevel = Number(1.0);}		
			if (property.maxFitToScreenLevel) {this.maxFitToScreenLevel=Number(property.maxFitToScreenLevel);}
			if (property.minZoomLevel) {this.minZoomLevel = Number(property.minZoomLevel);}
			if (property.maxZoomLevel) {this.maxZoomLevel = Number(property.maxZoomLevel);}
		}.bind(this));

		
		/* Register zoom in */
		this.facade.offer({
			'name':ORYX.I18N.View.zoomIn,
			'functionality': this.zoom.bind(this, [1.0 + ORYX.CONFIG.ZOOM_OFFSET]),
			'group': ORYX.I18N.View.group,
			'icon': ORYX.PATH + "images/magnifier_zoom_in.png",
			'description': ORYX.I18N.View.zoomInDesc,
			'index': 1,
			'minShape': 0,
			'maxShape': 0,
			'isEnabled': function(){return this.zoomLevel < this.maxZoomLevel }.bind(this)});
		
		/* Register zoom out */
		this.facade.offer({
			'name':ORYX.I18N.View.zoomOut,
			'functionality': this.zoom.bind(this, [1.0 - ORYX.CONFIG.ZOOM_OFFSET]),
			'group': ORYX.I18N.View.group,
			'icon': ORYX.PATH + "images/magnifier_zoom_out.png",
			'description': ORYX.I18N.View.zoomOutDesc,
			'index': 2,
			'minShape': 0,
			'maxShape': 0,
			'isEnabled': function(){ return this._checkSize() }.bind(this)});
		
		/* Register zoom standard */
		this.facade.offer({
			'name':ORYX.I18N.View.zoomStandard,
			'functionality': this.setAFixZoomLevel.bind(this, 1),
			'group': ORYX.I18N.View.group,
			'icon': ORYX.PATH + "images/zoom_standard.png",
			'cls' : 'icon-large',
			'description': ORYX.I18N.View.zoomStandardDesc,
			'index': 3,
			'minShape': 0,
			'maxShape': 0,
			'isEnabled': function(){return this.zoomLevel != 1}.bind(this)
		});
		
		/* Register zoom fit to model */
		this.facade.offer({
			'name':ORYX.I18N.View.zoomFitToModel,
			'functionality': this.zoomFitToModel.bind(this),
			'group': ORYX.I18N.View.group,
			'icon': ORYX.PATH + "images/image.png",
			'description': ORYX.I18N.View.zoomFitToModelDesc,
			'index': 4,
			'minShape': 0,
			'maxShape': 0
		});
	},
	
	/**
	 * It sets the zoom level to a fix value and call the zooming function.
	 * 
	 * @param {Number} zoomLevel
	 * 			the zoom level
	 */
	setAFixZoomLevel : function(zoomLevel) {
		this.zoomLevel = zoomLevel;
		this._checkZoomLevelRange();
		this.zoom(1);
	},
	
	/**
	 * It does the actual zooming. It changes the viewable size of the canvas 
	 * and all to its child elements.
	 * 
	 * @param {Number} factor
	 * 		the factor to adjust the zoom level
	 */
	zoom: function(factor) {
		// TODO: Zoomen auf allen Objekten im SVG-DOM
		
		this.zoomLevel *= factor;
		var scrollNode 	= this.facade.getCanvas().getHTMLContainer().parentNode.parentNode;
		var canvas 		= this.facade.getCanvas();
		var newWidth 	= canvas.bounds.width()  * this.zoomLevel;
		var newHeight 	= canvas.bounds.height() * this.zoomLevel;
		
		/* Set new top offset */
		var offsetTop = (canvas.node.parentNode.parentNode.parentNode.offsetHeight - newHeight) / 2.0;	
		offsetTop = offsetTop > 20 ? offsetTop - 20 : 0;
		canvas.node.parentNode.parentNode.style.marginTop = offsetTop + "px";
		offsetTop += 5;
		canvas.getHTMLContainer().style.top = offsetTop + "px";
		
		/*readjust scrollbar*/
		var newScrollTop=	scrollNode.scrollTop - Math.round((canvas.getHTMLContainer().parentNode.getHeight()-newHeight) / 2)+this.diff;
		var newScrollLeft=	scrollNode.scrollLeft - Math.round((canvas.getHTMLContainer().parentNode.getWidth()-newWidth) / 2)+this.diff;
		
		/* Set new Zoom-Level */
		canvas.setSize({width: newWidth, height: newHeight}, true);
		
		/* Set Scale-Factor */
		canvas.node.setAttributeNS(null, "transform", "scale(" +this.zoomLevel+ ")");	

		/* Refresh the Selection */
		this.facade.updateSelection();
		scrollNode.scrollTop=newScrollTop;
		scrollNode.scrollLeft=newScrollLeft;
		
		/* Update the zoom-level*/
		canvas.zoomLevel = this.zoomLevel;
	},
	
	
	/**
	 * It calculates the zoom level to fit whole model into the visible area
	 * of the canvas. Than the model gets zoomed and the position of the 
	 * scroll bars are adjusted.
	 * 
	 */
	zoomFitToModel: function() {
		
		/* Get the size of the visible area of the canvas */
		var scrollNode 	= this.facade.getCanvas().getHTMLContainer().parentNode.parentNode;
		var visibleHeight = scrollNode.getHeight() - 30;
		var visibleWidth = scrollNode.getWidth() - 30;
		
		var nodes = this.facade.getCanvas().getChildShapes();
		
		if(!nodes || nodes.length < 1) {
			return false;			
		}
			
		/* Calculate size of canvas to fit the model */
		var bounds = nodes[0].absoluteBounds().clone();
		nodes.each(function(node) {
			bounds.include(node.absoluteBounds().clone());
		});
		
		
		/* Set new Zoom Level */
		var scaleFactorWidth =  visibleWidth / bounds.width();
		var scaleFactorHeight = visibleHeight / bounds.height();
		
		/* Choose the smaller zoom level to fit the whole model */
		var zoomFactor = scaleFactorHeight < scaleFactorWidth ? scaleFactorHeight : scaleFactorWidth;
		
		/*Test if maximum zoom is reached*/
		if(zoomFactor>this.maxFitToScreenLevel){zoomFactor=this.maxFitToScreenLevel}
		/* Do zooming */
		this.setAFixZoomLevel(zoomFactor);
		
		/* Set scroll bar position */
		scrollNode.scrollTop = Math.round(bounds.upperLeft().y * this.zoomLevel) - 5;
		scrollNode.scrollLeft = Math.round(bounds.upperLeft().x * this.zoomLevel) - 5;
		
	},
	
	/**
	 * It checks if the zoom level is less or equal to the level, which is required
	 * to schow the whole canvas.
	 * 
	 * @private
	 */
	_checkSize:function(){
		var canvasParent=this.facade.getCanvas().getHTMLContainer().parentNode;
		var minForCanvas= Math.min((canvasParent.parentNode.getWidth()/canvasParent.getWidth()),(canvasParent.parentNode.getHeight()/canvasParent.getHeight()));
		return 1.05 > minForCanvas;
		
	},
	/**
	 * It checks if the zoom level is included in the definined zoom
	 * level range.
	 * 
	 * @private
	 */
	_checkZoomLevelRange: function() {
		/*var canvasParent=this.facade.getCanvas().getHTMLContainer().parentNode;
		var maxForCanvas= Math.max((canvasParent.parentNode.getWidth()/canvasParent.getWidth()),(canvasParent.parentNode.getHeight()/canvasParent.getHeight()));
		if(this.zoomLevel > maxForCanvas) {
			this.zoomLevel = maxForCanvas;			
		}*/
		if(this.zoomLevel < this.minZoomLevel) {
			this.zoomLevel = this.minZoomLevel;			
		}
		
		if(this.zoomLevel > this.maxZoomLevel) {
			this.zoomLevel = this.maxZoomLevel;			
		}
	}
};

ORYX.Plugins.View = Clazz.extend(ORYX.Plugins.View);
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if(!ORYX.Plugins) 
	ORYX.Plugins = new Object();

ORYX.Plugins.DragDropResize = ORYX.Plugins.AbstractPlugin.extend({

	/**
	 *	Constructor
	 *	@param {Object} Facade: The Facade of the Editor
	 */
	construct: function(facade) {
		this.facade = facade;

		// Initialize variables
		this.currentShapes 		= [];			// Current selected Shapes
		//this.pluginsData 		= [];			// Available Plugins
		this.toMoveShapes 		= [];			// Shapes there will be moved
		this.distPoints 		= [];			// Distance Points for Snap on Grid
		this.isResizing 		= false;		// Flag: If there was currently resized
		this.dragEnable 		= false;		// Flag: If Dragging is enabled
		this.dragIntialized 	= false;		// Flag: If the Dragging is initialized
		this.edgesMovable		= true;			// Flag: If an edge is docked it is not movable
		this.offSetPosition 	= {x: 0, y: 0};	// Offset of the Dragging
		this.faktorXY 			= {x: 1, y: 1};	// The Current Zoom-Faktor
		this.containmentParentNode;				// the current future parent node for the dragged shapes
		this.isAddingAllowed 	= false;		// flag, if adding current selected shapes to containmentParentNode is allowed
		this.isAttachingAllowed = false;		// flag, if attaching to the current shape is allowed
		
		this.callbackMouseMove	= this.handleMouseMove.bind(this);
		this.callbackMouseUp	= this.handleMouseUp.bind(this);
		
		// Get the SVG-Containernode 
		var containerNode = this.facade.getCanvas().getSvgContainer();
		
		// Create the Selected Rectangle in the SVG
		this.selectedRect = new ORYX.Plugins.SelectedRect(containerNode);
		
		// Show grid line if enabled
		if (ORYX.CONFIG.SHOW_GRIDLINE) {
			this.vLine = new ORYX.Plugins.GridLine(containerNode, ORYX.Plugins.GridLine.DIR_VERTICAL);
			this.hLine = new ORYX.Plugins.GridLine(containerNode, ORYX.Plugins.GridLine.DIR_HORIZONTAL);
		}
		
		// Get a HTML-ContainerNode
		containerNode = this.facade.getCanvas().getHTMLContainer();
		
		this.scrollNode = this.facade.getCanvas().rootNode.parentNode.parentNode;
		
		// Create the southeastern button for resizing
		this.resizerSE = new ORYX.Plugins.Resizer(containerNode, "southeast", this.facade);
		this.resizerSE.registerOnResize(this.onResize.bind(this)); // register the resize callback
		this.resizerSE.registerOnResizeEnd(this.onResizeEnd.bind(this)); // register the resize end callback
		this.resizerSE.registerOnResizeStart(this.onResizeStart.bind(this)); // register the resize start callback
		
		// Create the northwestern button for resizing
		this.resizerNW = new ORYX.Plugins.Resizer(containerNode, "northwest", this.facade);
		this.resizerNW.registerOnResize(this.onResize.bind(this)); // register the resize callback
		this.resizerNW.registerOnResizeEnd(this.onResizeEnd.bind(this)); // register the resize end callback
		this.resizerNW.registerOnResizeStart(this.onResizeStart.bind(this)); // register the resize start callback
		
		// For the Drag and Drop
		// Register on MouseDown-Event on a Shape
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_MOUSEDOWN, this.handleMouseDown.bind(this));
	},

	/**
	 * On Mouse Down
	 *
	 */
	handleMouseDown: function(event, uiObj) {
		// If the selection Bounds not intialized and the uiObj is not member of current selectio
		// then return
		if(!this.dragBounds || !this.currentShapes.member(uiObj) || !this.toMoveShapes.length) {return};
		
		// Start Dragging
		this.dragEnable = true;
		this.dragIntialized = true;
		this.edgesMovable = true;

		// Calculate the current zoom factor
		var a = this.facade.getCanvas().node.getScreenCTM();
		this.faktorXY.x = a.a;
		this.faktorXY.y = a.d;

		// Set the offset position of dragging
		var upL = this.dragBounds.upperLeft();
		this.offSetPosition =  {
			x: Event.pointerX(event) - (upL.x * this.faktorXY.x),
			y: Event.pointerY(event) - (upL.y * this.faktorXY.y)};
		
		this.offsetScroll	= {x:this.scrollNode.scrollLeft,y:this.scrollNode.scrollTop};
			
		// Register on Global Mouse-MOVE Event
		document.documentElement.addEventListener(ORYX.CONFIG.EVENT_MOUSEMOVE, this.callbackMouseMove, false);	
		// Register on Global Mouse-UP Event
		document.documentElement.addEventListener(ORYX.CONFIG.EVENT_MOUSEUP, this.callbackMouseUp, true);			

		return;
	},

	/**
	 * On Key Mouse Up
	 *
	 */
	handleMouseUp: function(event) {
		
		//disable containment highlighting
		this.facade.raiseEvent({
									type:ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
									highlightId:"dragdropresize.contain"
								});
								
		this.facade.raiseEvent({
									type:ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
									highlightId:"dragdropresize.attached"
								});

		// If Dragging is finished
		if(this.dragEnable) {
		
			// and update the current selection
			if(!this.dragIntialized) {
				
				// Do Method after Dragging
				this.afterDrag();	
				
				// Check if the Shape is allowed to dock to the other Shape						
				if ( 	this.isAttachingAllowed &&
						this.toMoveShapes.length == 1 && this.toMoveShapes[0] instanceof ORYX.Core.Node  &&
						this.toMoveShapes[0].dockers.length > 0) {
					
					// Get the position and the docker					
					var position 	= this.facade.eventCoordinates( event );	
					var docker 		= this.toMoveShapes[0].dockers[0];


			
					//Command-Pattern for dragging several Shapes
					var dockCommand = ORYX.Core.Command.extend({
						construct: function(docker, position, newDockedShape, facade){
							this.docker 		= docker;
							this.newPosition	= position;
							this.newDockedShape = newDockedShape;
							this.newParent 		= newDockedShape.parent || facade.getCanvas();
							this.oldPosition	= docker.parent.bounds.center();
							this.oldDockedShape	= docker.getDockedShape();
							this.oldParent 		= docker.parent.parent || facade.getCanvas();
							this.facade			= facade;
							
							if( this.oldDockedShape ){
								this.oldPosition = docker.parent.absoluteBounds().center();
							}
							
						},			
						execute: function(){
							this.dock( this.newDockedShape, this.newParent,  this.newPosition );
							
							// Raise Event for having the docked shape on top of the other shape
							this.facade.raiseEvent({type:ORYX.CONFIG.EVENT_ARRANGEMENT_TOP, excludeCommand: true})									
						},
						rollback: function(){
							this.dock( this.oldDockedShape, this.oldParent, this.oldPosition );
						},
						dock:function( toDockShape, parent, pos ){
							// Add to the same parent Shape
							parent.add( this.docker.parent )
							
							
							// Set the Docker to the new Shape
							this.docker.setDockedShape( undefined );
							this.docker.bounds.centerMoveTo( pos )				
							this.docker.setDockedShape( toDockShape );	
							//this.docker.update();
							
							this.facade.setSelection( [this.docker.parent] );	
							this.facade.getCanvas().update();
							this.facade.updateSelection();
																												
											
						}
					});
			
					// Instanziate the dockCommand
					var commands = [new dockCommand(docker, position, this.containmentParentNode, this.facade)];
					this.facade.executeCommands(commands);	
						
					
				// Check if adding is allowed to the other Shape	
				} else if( this.isAddingAllowed ) {
					
				
					// Refresh all Shapes --> Set the new Bounds
					this.refreshSelectedShapes();
					
				}
				
				this.facade.updateSelection();
							
				//this.currentShapes.each(function(shape) {shape.update()})
				// Raise Event: Dragging is finished
				this.facade.raiseEvent({type:ORYX.CONFIG.EVENT_DRAGDROP_END});
			}	

			if (this.vLine)
				this.vLine.hide();
			if (this.hLine)
				this.hLine.hide();
		}

		// Disable 
		this.dragEnable = false;	
		

		// UnRegister on Global Mouse-UP/-Move Event
		document.documentElement.removeEventListener(ORYX.CONFIG.EVENT_MOUSEUP, this.callbackMouseUp, true);	
		document.documentElement.removeEventListener(ORYX.CONFIG.EVENT_MOUSEMOVE, this.callbackMouseMove, false);				
			
		return;
	},

	/**
	* On Key Mouse Move
	*
	*/
	handleMouseMove: function(event) {
		// If dragging is not enabled, go return
		if(!this.dragEnable) { return };
		// If Dragging is initialized
		if(this.dragIntialized) {
			// Raise Event: Drag will be started
			this.facade.raiseEvent({type:ORYX.CONFIG.EVENT_DRAGDROP_START});
			this.dragIntialized = false;
			
			// And hide the resizers and the highlighting
			this.resizerSE.hide();
			this.resizerNW.hide();
			
			// if only edges are selected, containmentParentNode must be the canvas
			this._onlyEdges = this.currentShapes.all(function(currentShape) {
				return (currentShape instanceof ORYX.Core.Edge);
			});
			
//			/* If only edges are selected, check if they are movable. An Edge is
//			 * movable in case it is not docked
//			 */
//			if(this._onlyEdges) {
//				this.currentShapes.each(function(edge) {
//					if(edge.isDocked()) {
//						this.edgesMovable = false;
//						throw $break;
//					}
//				}.bind(this));
//			}
			
			// Do method before Drag
			this.beforeDrag();
			
			this._currentUnderlyingNodes = [];
			
		}

			
		// Calculate the new position
		var position = {
			x: Event.pointerX(event) - this.offSetPosition.x,
			y: Event.pointerY(event) - this.offSetPosition.y}

		position.x 	-= this.offsetScroll.x - this.scrollNode.scrollLeft; 
		position.y 	-= this.offsetScroll.y - this.scrollNode.scrollTop;
		
		// If not the Control-Key are pressed
		var modifierKeyPressed = event.shiftKey || event.ctrlKey;
		if(ORYX.CONFIG.GRID_ENABLED && !modifierKeyPressed) {
			// Snap the current position to the nearest Snap-Point
			position = this.snapToGrid(position);
		} else {
			if (this.vLine)
				this.vLine.hide();
			if (this.hLine)
				this.hLine.hide();
		}

		// Adjust the point by the zoom faktor 
		position.x /= this.faktorXY.x;
		position.y /= this.faktorXY.y;

		// Set that the position is not lower than zero
		position.x = Math.max( 0 , position.x)
		position.y = Math.max( 0 , position.y)

		// Set that the position is not bigger than the canvas
		var c = this.facade.getCanvas();
		position.x = Math.min( c.bounds.width() - this.dragBounds.width(), 		position.x)
		position.y = Math.min( c.bounds.height() - this.dragBounds.height(), 	position.y)	
						

		// Drag this bounds
		this.dragBounds.moveTo(position);

		// Update all selected shapes and the selection rectangle
		//this.refreshSelectedShapes();
		this.resizeRectangle(this.dragBounds);

		this.isAttachingAllowed = false;

		//check, if a node can be added to the underlying node
		var underlyingNodes = $A(this.facade.getCanvas().getAbstractShapesAtPosition(this.facade.eventCoordinates(event)));
		
		var checkIfAttachable = this.toMoveShapes.length == 1 && this.toMoveShapes[0] instanceof ORYX.Core.Node && this.toMoveShapes[0].dockers.length > 0
		checkIfAttachable	= checkIfAttachable && underlyingNodes.length != 1
		
			
		if(		!checkIfAttachable &&
				underlyingNodes.length === this._currentUnderlyingNodes.length  &&
				underlyingNodes.all(function(node, index){return this._currentUnderlyingNodes[index] === node}.bind(this))) {
					
			return
			
		} else if(this._onlyEdges) {
			
			this.isAddingAllowed = true;
			this.containmentParentNode = this.facade.getCanvas();
			
		} else {
		
			/* Check the containment and connection rules */
			var options = {
				event : event,
				underlyingNodes : underlyingNodes,
				checkIfAttachable : checkIfAttachable
			};
			this.checkRules(options);
							
		}
		
		this._currentUnderlyingNodes = underlyingNodes.reverse();
		
		//visualize the containment result
		if( this.isAttachingAllowed ) {
			
			this.facade.raiseEvent({
									type: 			ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW,
									highlightId: 	"dragdropresize.attached",
									elements: 		[this.containmentParentNode],
									style: 			ORYX.CONFIG.SELECTION_HIGHLIGHT_STYLE_RECTANGLE,
									color: 			ORYX.CONFIG.SELECTION_VALID_COLOR
								});
								
		} else {
			
			this.facade.raiseEvent({
									type:ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
									highlightId:"dragdropresize.attached"
								});
		}
		
		if( !this.isAttachingAllowed ){
			if( this.isAddingAllowed ) {

				this.facade.raiseEvent({
										type:ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW,
										highlightId:"dragdropresize.contain",
										elements:[this.containmentParentNode],
										color: ORYX.CONFIG.SELECTION_VALID_COLOR
									});

			} else {

				this.facade.raiseEvent({
										type:ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW,
										highlightId:"dragdropresize.contain",
										elements:[this.containmentParentNode],
										color: ORYX.CONFIG.SELECTION_INVALID_COLOR
									});

			}
		} else {
			this.facade.raiseEvent({
									type:ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE,
									highlightId:"dragdropresize.contain"
								});			
		}	

		// Stop the Event
		//Event.stop(event);
		return;
	},
	
//	/**
//	 * Rollbacks the docked shape of an edge, if the edge is not movable.
//	 */
//	redockEdges: function() {
//		this._undockedEdgesCommand.dockers.each(function(el){
//			el.docker.setDockedShape(el.dockedShape);
//			el.docker.setReferencePoint(el.refPoint);
//		})
//	},
	
	/**
	 *  Checks the containment and connection rules for the selected shapes.
	 */
	checkRules : function(options) {
		var event = options.event;
		var underlyingNodes = options.underlyingNodes;
		var checkIfAttachable = options.checkIfAttachable;
		var noEdges = options.noEdges;
		
		//get underlying node that is not the same than one of the currently selected shapes or
		// a child of one of the selected shapes with the highest z Order.
		// The result is a shape or the canvas
		this.containmentParentNode = underlyingNodes.reverse().find((function(node) {
			return (node instanceof ORYX.Core.Canvas) || 
					(((node instanceof ORYX.Core.Node) || ((node instanceof ORYX.Core.Edge) && !noEdges)) 
					&& (!(this.currentShapes.member(node) || 
							this.currentShapes.any(function(shape) {
								return (shape.children.length > 0 && shape.getChildNodes(true).member(node));
							}))));
		}).bind(this));
								
		if( checkIfAttachable ){
				
			this.isAttachingAllowed	= this.facade.getRules().canConnect({
												sourceShape:	this.containmentParentNode, 
												edgeShape:		this.toMoveShapes[0], 
												targetShape:	this.toMoveShapes[0]
												});						
			
			if ( this.isAttachingAllowed	) {
				var point = this.facade.eventCoordinates(event);
				this.isAttachingAllowed	= this.containmentParentNode.isPointOverOffset( point.x, point.y );
			}						
		}
		
		if( !this.isAttachingAllowed ){
			//check all selected shapes, if they can be added to containmentParentNode
			this.isAddingAllowed = this.toMoveShapes.all((function(currentShape) {
				if(currentShape instanceof ORYX.Core.Edge ||
					currentShape instanceof ORYX.Core.Controls.Docker ||
					this.containmentParentNode === currentShape.parent) {
					return true;
				} else if(this.containmentParentNode !== currentShape) {
					
					if(!(this.containmentParentNode instanceof ORYX.Core.Edge) || !noEdges) {
					
						if(this.facade.getRules().canContain({containingShape:this.containmentParentNode,
															  containedShape:currentShape})) {	  	
							return true;
						}
					}
				}
				return false;
			}).bind(this));				
		}
		
		if(!this.isAttachingAllowed && !this.isAddingAllowed && 
				(this.containmentParentNode instanceof ORYX.Core.Edge)) {
			options.noEdges = true;
			options.underlyingNodes.reverse();
			this.checkRules(options);			
		}
	},
	
	/**
	 * Redraw the selected Shapes.
	 *
	 */
	refreshSelectedShapes: function() {
		// If the selection bounds not initialized, return
		if(!this.dragBounds) {return}

		// Calculate the offset between the bounds and the old bounds
		var upL = this.dragBounds.upperLeft();
		var oldUpL = this.oldDragBounds.upperLeft();
		var offset = {
			x: upL.x - oldUpL.x,
			y: upL.y - oldUpL.y };

		// Instanciate the dragCommand
		var commands = [new ORYX.Core.Command.Move(this.toMoveShapes, offset, this.containmentParentNode, this.currentShapes, this)];
		// If the undocked edges command is setted, add this command
		if( this._undockedEdgesCommand instanceof ORYX.Core.Command ){
			commands.unshift( this._undockedEdgesCommand );
		}
		// Execute the commands			
		this.facade.executeCommands( commands );	

		// copy the bounds to the old bounds
		if( this.dragBounds )
			this.oldDragBounds = this.dragBounds.clone();

	},
	
	/**
	 * Callback for Resize
	 *
	 */
	onResize: function(bounds) {
		// If the selection bounds not initialized, return
		if(!this.dragBounds) {return}
		
		this.dragBounds = bounds;
		this.isResizing = true;

		// Update the rectangle 
		this.resizeRectangle(this.dragBounds);
	},
	
	onResizeStart: function() {
		this.facade.raiseEvent({type:ORYX.CONFIG.EVENT_RESIZE_START});
	},

	onResizeEnd: function() {
		
		if (!(this.currentShapes instanceof Array)||this.currentShapes.length<=0) {
			return;
		}
		
		// If Resizing finished, the Shapes will be resize
		if(this.isResizing) {
			
			var commandClass = ORYX.Core.Command.extend({
				construct: function(shape, newBounds, plugin){
					this.shape = shape;
					this.oldBounds = shape.bounds.clone();
					this.newBounds = newBounds;
					this.plugin = plugin;
				},			
				execute: function(){
					this.shape.bounds.set(this.newBounds.a, this.newBounds.b);
					this.update(this.getOffset(this.oldBounds, this.newBounds));
					
				},
				rollback: function(){
					this.shape.bounds.set(this.oldBounds.a, this.oldBounds.b);
					this.update(this.getOffset(this.newBounds, this.oldBounds))
				},
				
				getOffset:function(b1, b2){
					return {
						x: b2.a.x - b1.a.x,
						y: b2.a.y - b1.a.y,
						xs: b2.width()/b1.width(),
						ys: b2.height()/b1.height()
					}
				},
				update:function(offset){
					this.shape.getLabels().each(function(label) {
						label.changed();
					});
					
					var allEdges = [].concat(this.shape.getIncomingShapes())
						.concat(this.shape.getOutgoingShapes())
						// Remove all edges which are included in the selection from the list
						.findAll(function(r){ return r instanceof ORYX.Core.Edge }.bind(this))
												
					this.plugin.layoutEdges(this.shape, allEdges, offset);

					this.plugin.facade.setSelection([this.shape]);
					this.plugin.facade.getCanvas().update();
					this.plugin.facade.updateSelection();
				}
			});
			
			var bounds = this.dragBounds.clone();
			var shape = this.currentShapes[0];
			
			if(shape.parent) {
				var parentPosition = shape.parent.absoluteXY();
				bounds.moveBy(-parentPosition.x, -parentPosition.y);
			}
				
			var command = new commandClass(shape, bounds, this);
			
			this.facade.executeCommands([command]);
			
			this.isResizing = false;
			
			this.facade.raiseEvent({type:ORYX.CONFIG.EVENT_RESIZE_END});
		}
	},
	

	/**
	 * Prepare the Dragging
	 *
	 */
	beforeDrag: function(){

		var undockEdgeCommand = ORYX.Core.Command.extend({
			construct: function(moveShapes){
				this.dockers = moveShapes.collect(function(shape){ return shape instanceof ORYX.Core.Controls.Docker ? {docker:shape, dockedShape:shape.getDockedShape(), refPoint:shape.referencePoint} : undefined }).compact();
			},			
			execute: function(){
				this.dockers.each(function(el){
					el.docker.setDockedShape(undefined);
				})
			},
			rollback: function(){
				this.dockers.each(function(el){
					el.docker.setDockedShape(el.dockedShape);
					el.docker.setReferencePoint(el.refPoint);
					//el.docker.update();
				})
			}
		});
		
		this._undockedEdgesCommand = new undockEdgeCommand( this.toMoveShapes );
		this._undockedEdgesCommand.execute();	
		
	},

	hideAllLabels: function(shape) {
			
			// Hide all labels from the shape
			shape.getLabels().each(function(label) {
				label.hide();
			});
			// Hide all labels from docked shapes
			shape.getAllDockedShapes().each(function(dockedShape) {
				var labels = dockedShape.getLabels();
				if(labels.length > 0) {
					labels.each(function(label) {
						label.hide();
					});
				}
			});

			// Do this recursive for all child shapes
			// EXP-NICO use getShapes
			shape.getChildren().each((function(value) {
				if(value instanceof ORYX.Core.Shape)
					this.hideAllLabels(value);
			}).bind(this));
	},

	/**
	 * Finished the Dragging
	 *
	 */
	afterDrag: function(){
				
	},

	/**
	 * Show all Labels at these shape
	 * 
	 */
	showAllLabels: function(shape) {

			// Show the label of these shape
			//shape.getLabels().each(function(label) {
			for(var i=0; i<shape.length ;i++){
				var label = shape[i];
				label.show();
			}//);
			// Show all labels at docked shapes
			//shape.getAllDockedShapes().each(function(dockedShape) {
			var allDockedShapes = shape.getAllDockedShapes()
			for(var i=0; i<allDockedShapes.length ;i++){
				var dockedShape = allDockedShapes[i];				
				var labels = dockedShape.getLabels();
				if(labels.length > 0) {
					labels.each(function(label) {
						label.show();
					});
				}
			}//);

			// Do this recursive
			//shape.children.each((function(value) {
			for(var i=0; i<shape.children.length ;i++){
				var value = shape.children[i];	
				if(value instanceof ORYX.Core.Shape)
					this.showAllLabels(value);
			}//).bind(this));
	},

	/**
	 * Intialize Method, if there are new Plugins
	 *
	 */
	/*registryChanged: function(pluginsData) {
		// Save all new Plugin, sorted by group and index
		this.pluginsData = pluginsData.sortBy( function(value) {
			return (value.group + "" + value.index);
		});
	},*/

	/**
	 * On the Selection-Changed
	 *
	 */
	onSelectionChanged: function(event) {
		var elements = event.elements;
		
		// Reset the drag-variables
		this.dragEnable = false;
		this.dragIntialized = false;
		this.resizerSE.hide();
		this.resizerNW.hide();

		// If there is no elements
		if(!elements || elements.length == 0) {
			// Hide all things and reset all variables
			this.selectedRect.hide();
			this.currentShapes = [];
			this.toMoveShapes = [];
			this.dragBounds = undefined;
			this.oldDragBounds = undefined;
		} else {

			// Set the current Shapes
			this.currentShapes = elements;

			// Get all shapes with the highest parent in object hierarchy (canvas is the top most parent)
			var topLevelElements = this.facade.getCanvas().getShapesWithSharedParent(elements);
			this.toMoveShapes = topLevelElements;
			
			this.toMoveShapes = this.toMoveShapes.findAll( function(shape) { return shape instanceof ORYX.Core.Node && 
																			(shape.dockers.length === 0 || !elements.member(shape.dockers.first().getDockedShape()))});		
																			
			elements.each((function(shape){
				if(!(shape instanceof ORYX.Core.Edge)) {return}
				
				var dks = shape.getDockers() 
								
				var hasF = elements.member(dks.first().getDockedShape());
				var hasL = elements.member(dks.last().getDockedShape());	
						
//				if(!hasL) {
//					this.toMoveShapes.push(dks.last());
//				}
//				if(!hasF){
//					this.toMoveShapes.push(dks.first())
//				} 
				/* Enable movement of undocked edges */
				if(!hasF && !hasL) {
					var isUndocked = !dks.first().getDockedShape() && !dks.last().getDockedShape()
					if(isUndocked) {
						this.toMoveShapes = this.toMoveShapes.concat(dks);
					}
				}
				
				if( shape.dockers.length > 2 && hasF && hasL){
					this.toMoveShapes = this.toMoveShapes.concat(dks.findAll(function(el,index){ return index > 0 && index < dks.length-1}))
				}
				
			}).bind(this));
			
			// Calculate the new area-bounds of the selection
			var newBounds = undefined;
			this.toMoveShapes.each(function(value) {
				var shape = value;
				if(value instanceof ORYX.Core.Controls.Docker) {
					/* Get the Shape */
					shape = value.parent;
				}
				
				if(!newBounds){
					newBounds = shape.absoluteBounds();
				}
				else {
					newBounds.include(shape.absoluteBounds());
				}
			}.bind(this));
			
			if(!newBounds){
				elements.each(function(value){
					if(!newBounds) {
						newBounds = value.absoluteBounds();
					} else {
						newBounds.include(value.absoluteBounds());
					}
				});
			}
			
			// Set the new bounds
			this.dragBounds = newBounds;
			this.oldDragBounds = newBounds.clone();

			// Update and show the rectangle
			this.resizeRectangle(newBounds);
			this.selectedRect.show();
			
			// Show the resize button, if there is only one element and this is resizeable
			if(elements.length == 1 && elements[0].isResizable) {
				var aspectRatio = elements[0].getStencil().fixedAspectRatio() ? elements[0].bounds.width() / elements[0].bounds.height() : undefined;
				this.resizerSE.setBounds(this.dragBounds, elements[0].minimumSize, elements[0].maximumSize, aspectRatio);
				this.resizerSE.show();
				this.resizerNW.setBounds(this.dragBounds, elements[0].minimumSize, elements[0].maximumSize, aspectRatio);
				this.resizerNW.show();
			} else {
				this.resizerSE.setBounds(undefined);
				this.resizerNW.setBounds(undefined);
			}

			// If Snap-To-Grid is enabled, the Snap-Point will be calculate
			if(ORYX.CONFIG.GRID_ENABLED) {

				// Reset all points
				this.distPoints = [];

				if (this.distPointTimeout)
					window.clearTimeout(this.distPointTimeout)
				
				this.distPointTimeout = window.setTimeout(function(){
					// Get all the shapes, there will consider at snapping
					// Consider only those elements who shares the same parent element
					var distShapes = this.facade.getCanvas().getChildShapes(true).findAll(function(value){
						var parentShape = value.parent;
						while(parentShape){
							if(elements.member(parentShape)) return false;
							parentShape = parentShape.parent
						}
						return true;
					})
					
					// The current selection will delete from this array
					//elements.each(function(shape) {
					//	distShapes = distShapes.without(shape);
					//});

					// For all these shapes
					distShapes.each((function(value) {
						if(!(value instanceof ORYX.Core.Edge)) {
							var ul = value.absoluteXY();
							var width = value.bounds.width();
							var height = value.bounds.height();

							// Add the upperLeft, center and lowerRight - Point to the distancePoints
							this.distPoints.push({
								ul: {
									x: ul.x,
									y: ul.y
								},
								c: {
									x: ul.x + (width / 2),
									y: ul.y + (height / 2)
								},
								lr: {
									x: ul.x + width,
									y: ul.y + height
								}
							});
						}
					}).bind(this));
					
				}.bind(this), 10)


			}
		}
	},

	/**
	 * Adjust an Point to the Snap Points
	 *
	 */
	snapToGrid: function(position) {

		// Get the current Bounds
		var bounds = this.dragBounds;
		
		var point = {};

		var ulThres = 6;
		var cThres = 10;
		var lrThres = 6;

		var scale = this.vLine ? this.vLine.getScale() : 1;
		
		var ul = { x: (position.x/scale), y: (position.y/scale)};
		var c = { x: (position.x/scale) + (bounds.width()/2), y: (position.y/scale) + (bounds.height()/2)};
		var lr = { x: (position.x/scale) + (bounds.width()), y: (position.y/scale) + (bounds.height())};

		var offsetX, offsetY;
		var gridX, gridY;
		
		// For each distant point
		this.distPoints.each(function(value) {

			var x, y, gx, gy;
			if (Math.abs(value.c.x-c.x) < cThres){
				x = value.c.x-c.x;
				gx = value.c.x;
			}/* else if (Math.abs(value.ul.x-ul.x) < ulThres){
				x = value.ul.x-ul.x;
				gx = value.ul.x;
			} else if (Math.abs(value.lr.x-lr.x) < lrThres){
				x = value.lr.x-lr.x;
				gx = value.lr.x;
			} */
			

			if (Math.abs(value.c.y-c.y) < cThres){
				y = value.c.y-c.y;
				gy = value.c.y;
			}/* else if (Math.abs(value.ul.y-ul.y) < ulThres){
				y = value.ul.y-ul.y;
				gy = value.ul.y;
			} else if (Math.abs(value.lr.y-lr.y) < lrThres){
				y = value.lr.y-lr.y;
				gy = value.lr.y;
			} */

			if (x !== undefined) {
				offsetX = offsetX === undefined ? x : (Math.abs(x) < Math.abs(offsetX) ? x : offsetX);
				if (offsetX === x)
					gridX = gx;
			}

			if (y !== undefined) {
				offsetY = offsetY === undefined ? y : (Math.abs(y) < Math.abs(offsetY) ? y : offsetY);
				if (offsetY === y)
					gridY = gy;
			}
		});
		
		
		if (offsetX !== undefined) {
			ul.x += offsetX;	
			ul.x *= scale;
			if (this.vLine&&gridX)
				this.vLine.update(gridX);
		} else {
			ul.x = (position.x - (position.x % (ORYX.CONFIG.GRID_DISTANCE/2)));
			if (this.vLine)
				this.vLine.hide()
		}
		
		if (offsetY !== undefined) {	
			ul.y += offsetY;
			ul.y *= scale;
			if (this.hLine&&gridY)
				this.hLine.update(gridY);
		} else {
			ul.y = (position.y - (position.y % (ORYX.CONFIG.GRID_DISTANCE/2)));
			if (this.hLine)
				this.hLine.hide();
		}
		
		return ul;
	},
	
	showGridLine: function(){
		
	},


	/**
	 * Redraw of the Rectangle of the SelectedArea
	 * @param {Object} bounds
	 */
	resizeRectangle: function(bounds) {
		// Resize the Rectangle
		this.selectedRect.resize(bounds);
	}

});


ORYX.Plugins.SelectedRect = Clazz.extend({

	construct: function(parentId) {

		this.parentId = parentId;

		this.node = ORYX.Editor.graft("http://www.w3.org/2000/svg", $(parentId),
					['g']);

		this.dashedArea = ORYX.Editor.graft("http://www.w3.org/2000/svg", this.node,
			['rect', {x: 0, y: 0,
				'stroke-width': 1, stroke: '#777777', fill: 'none',
				'stroke-dasharray': '2,2',
				'pointer-events': 'none'}]);

		this.hide();

	},

	hide: function() {
		this.node.setAttributeNS(null, 'display', 'none');
	},

	show: function() {
		this.node.setAttributeNS(null, 'display', '');
	},

	resize: function(bounds) {
		var upL = bounds.upperLeft();

		var padding = ORYX.CONFIG.SELECTED_AREA_PADDING;

		this.dashedArea.setAttributeNS(null, 'width', bounds.width() + 2*padding);
		this.dashedArea.setAttributeNS(null, 'height', bounds.height() + 2*padding);
		this.node.setAttributeNS(null, 'transform', "translate("+ (upL.x - padding) +", "+ (upL.y - padding) +")");
	}


});



ORYX.Plugins.GridLine = Clazz.extend({
	
	construct: function(parentId, direction) {

		if (ORYX.Plugins.GridLine.DIR_HORIZONTAL !== direction && ORYX.Plugins.GridLine.DIR_VERTICAL !== direction) {
			direction = ORYX.Plugins.GridLine.DIR_HORIZONTAL
		}
		
	
		this.parent = $(parentId);
		this.direction = direction;
		this.node = ORYX.Editor.graft("http://www.w3.org/2000/svg", this.parent,
					['g']);

		this.line = ORYX.Editor.graft("http://www.w3.org/2000/svg", this.node,
			['path', {
				'stroke-width': 1, stroke: 'silver', fill: 'none',
				'stroke-dasharray': '5,5',
				'pointer-events': 'none'}]);

		this.hide();

	},

	hide: function() {
		this.node.setAttributeNS(null, 'display', 'none');
	},

	show: function() {
		this.node.setAttributeNS(null, 'display', '');
	},

	getScale: function(){
		try {
			return this.parent.parentNode.transform.baseVal.getItem(0).matrix.a;
		} catch(e) {
			return 1;
		}
	},
	
	update: function(pos) {
		
		if (this.direction === ORYX.Plugins.GridLine.DIR_HORIZONTAL) {
			var y = pos instanceof Object ? pos.y : pos; 
			var cWidth = this.parent.parentNode.parentNode.width.baseVal.value/this.getScale();
			this.line.setAttributeNS(null, 'd', 'M 0 '+y+ ' L '+cWidth+' '+y);
		} else {
			var x = pos instanceof Object ? pos.x : pos; 
			var cHeight = this.parent.parentNode.parentNode.height.baseVal.value/this.getScale();
			this.line.setAttributeNS(null, 'd', 'M'+x+ ' 0 L '+x+' '+cHeight);
		}
		
		this.show();
	}


});

ORYX.Plugins.GridLine.DIR_HORIZONTAL = "hor";
ORYX.Plugins.GridLine.DIR_VERTICAL = "ver";

ORYX.Plugins.Resizer = Clazz.extend({

	construct: function(parentId, orientation, facade) {

		this.parentId 		= parentId;
		this.orientation	= orientation;
		this.facade			= facade;
		this.node = ORYX.Editor.graft("http://www.w3.org/1999/xhtml", $(this.parentId),
			['div', {'class': 'resizer_'+ this.orientation, style:'left:0px; top:0px;'}]);

		this.node.addEventListener(ORYX.CONFIG.EVENT_MOUSEDOWN, this.handleMouseDown.bind(this), true);
		document.documentElement.addEventListener(ORYX.CONFIG.EVENT_MOUSEUP, 	this.handleMouseUp.bind(this), 		true);
		document.documentElement.addEventListener(ORYX.CONFIG.EVENT_MOUSEMOVE, 	this.handleMouseMove.bind(this), 	false);

		this.dragEnable = false;
		this.offSetPosition = {x: 0, y: 0};
		this.bounds = undefined;

		this.canvasNode = this.facade.getCanvas().node;

		this.minSize = undefined;
		this.maxSize = undefined;
		
		this.aspectRatio = undefined;

		this.resizeCallbacks 		= [];
		this.resizeStartCallbacks 	= [];
		this.resizeEndCallbacks 	= [];
		this.hide();
		
		// Calculate the Offset
		this.scrollNode = this.node.parentNode.parentNode.parentNode;


	},

	handleMouseDown: function(event) {
		this.dragEnable = true;

		this.offsetScroll	= {x:this.scrollNode.scrollLeft,y:this.scrollNode.scrollTop};
			
		this.offSetPosition =  {
			x: Event.pointerX(event) - this.position.x,
			y: Event.pointerY(event) - this.position.y};
		
		this.resizeStartCallbacks.each((function(value) {
			value(this.bounds);
		}).bind(this));

	},

	handleMouseUp: function(event) {
		this.dragEnable = false;
		this.containmentParentNode = null;
		this.resizeEndCallbacks.each((function(value) {
			value(this.bounds);
		}).bind(this));
				
	},

	handleMouseMove: function(event) {
		if(!this.dragEnable) { return }
		
		if(event.shiftKey || event.ctrlKey) {
			this.aspectRatio = this.bounds.width() / this.bounds.height();
		} else {
			this.aspectRatio = undefined;
		}

		var position = {
			x: Event.pointerX(event) - this.offSetPosition.x,
			y: Event.pointerY(event) - this.offSetPosition.y}


		position.x 	-= this.offsetScroll.x - this.scrollNode.scrollLeft; 
		position.y 	-= this.offsetScroll.y - this.scrollNode.scrollTop;
		
		position.x  = Math.min( position.x, this.facade.getCanvas().bounds.width())
		position.y  = Math.min( position.y, this.facade.getCanvas().bounds.height())
		
		var offset = {
			x: position.x - this.position.x,
			y: position.y - this.position.y
		}
		
		if(this.aspectRatio) {
			// fixed aspect ratio
			newAspectRatio = (this.bounds.width()+offset.x) / (this.bounds.height()+offset.y);
			if(newAspectRatio>this.aspectRatio) {
				offset.x = this.aspectRatio * (this.bounds.height()+offset.y) - this.bounds.width();
			} else if(newAspectRatio<this.aspectRatio) {
				offset.y = (this.bounds.width()+offset.x) / this.aspectRatio - this.bounds.height();
			}
		}
		
		// respect minimum and maximum sizes of stencil
		if(this.orientation==="northwest") {
			if(this.bounds.width()-offset.x > this.maxSize.width) {
				offset.x = -(this.maxSize.width - this.bounds.width());
				if(this.aspectRatio)
					offset.y = this.aspectRatio * offset.x;
			}
			if(this.bounds.width()-offset.x < this.minSize.width) {
				offset.x = -(this.minSize.width - this.bounds.width());
				if(this.aspectRatio)
					offset.y = this.aspectRatio * offset.x;
			}
			if(this.bounds.height()-offset.y > this.maxSize.height) {
				offset.y = -(this.maxSize.height - this.bounds.height());
				if(this.aspectRatio)
					offset.x = offset.y / this.aspectRatio;
			}
			if(this.bounds.height()-offset.y < this.minSize.height) {
				offset.y = -(this.minSize.height - this.bounds.height());
				if(this.aspectRatio)
					offset.x = offset.y / this.aspectRatio;
			}
		} else { // defaults to southeast
			if(this.bounds.width()+offset.x > this.maxSize.width) {
				offset.x = this.maxSize.width - this.bounds.width();
				if(this.aspectRatio)
					offset.y = this.aspectRatio * offset.x;
			}
			if(this.bounds.width()+offset.x < this.minSize.width) {
				offset.x = this.minSize.width - this.bounds.width();
				if(this.aspectRatio)
					offset.y = this.aspectRatio * offset.x;
			}
			if(this.bounds.height()+offset.y > this.maxSize.height) {
				offset.y = this.maxSize.height - this.bounds.height();
				if(this.aspectRatio)
					offset.x = offset.y / this.aspectRatio;
			}
			if(this.bounds.height()+offset.y < this.minSize.height) {
				offset.y = this.minSize.height - this.bounds.height();
				if(this.aspectRatio)
					offset.x = offset.y / this.aspectRatio;
			}
		}

		if(this.orientation==="northwest") {
			var oldLR = {x: this.bounds.lowerRight().x, y: this.bounds.lowerRight().y};
			this.bounds.extend({x:-offset.x, y:-offset.y});
			this.bounds.moveBy(offset);
		} else { // defaults to southeast
			this.bounds.extend(offset);
		}

		this.update();

		this.resizeCallbacks.each((function(value) {
			value(this.bounds);
		}).bind(this));

		Event.stop(event);

	},
	
	registerOnResizeStart: function(callback) {
		if(!this.resizeStartCallbacks.member(callback)) {
			this.resizeStartCallbacks.push(callback);
		}
	},
	
	unregisterOnResizeStart: function(callback) {
		if(this.resizeStartCallbacks.member(callback)) {
			this.resizeStartCallbacks = this.resizeStartCallbacks.without(callback);
		}
	},

	registerOnResizeEnd: function(callback) {
		if(!this.resizeEndCallbacks.member(callback)) {
			this.resizeEndCallbacks.push(callback);
		}
	},
	
	unregisterOnResizeEnd: function(callback) {
		if(this.resizeEndCallbacks.member(callback)) {
			this.resizeEndCallbacks = this.resizeEndCallbacks.without(callback);
		}
	},
		
	registerOnResize: function(callback) {
		if(!this.resizeCallbacks.member(callback)) {
			this.resizeCallbacks.push(callback);
		}
	},

	unregisterOnResize: function(callback) {
		if(this.resizeCallbacks.member(callback)) {
			this.resizeCallbacks = this.resizeCallbacks.without(callback);
		}
	},

	hide: function() {
		this.node.style.display = "none";
	},

	show: function() {
		if(this.bounds)
			this.node.style.display = "";
	},

	setBounds: function(bounds, min, max, aspectRatio) {
		this.bounds = bounds;

		if(!min)
			min = {width: ORYX.CONFIG.MINIMUM_SIZE, height: ORYX.CONFIG.MINIMUM_SIZE};

		if(!max)
			max = {width: ORYX.CONFIG.MAXIMUM_SIZE, height: ORYX.CONFIG.MAXIMUM_SIZE};

		this.minSize = min;
		this.maxSize = max;
		
		this.aspectRatio = aspectRatio;

		this.update();
	},

	update: function() {
		if(!this.bounds) { return; }

		var upL = this.bounds.upperLeft();

		if(this.bounds.width() < this.minSize.width)	{ this.bounds.set(upL.x, upL.y, upL.x + this.minSize.width, upL.y + this.bounds.height())};
		if(this.bounds.height() < this.minSize.height)	{ this.bounds.set(upL.x, upL.y, upL.x + this.bounds.width(), upL.y + this.minSize.height)};
		if(this.bounds.width() > this.maxSize.width)	{ this.bounds.set(upL.x, upL.y, upL.x + this.maxSize.width, upL.y + this.bounds.height())};
		if(this.bounds.height() > this.maxSize.height)	{ this.bounds.set(upL.x, upL.y, upL.x + this.bounds.width(), upL.y + this.maxSize.height)};

		var a = this.canvasNode.getScreenCTM();
		
		upL.x *= a.a;
		upL.y *= a.d;
		
		if(this.orientation==="northwest") {
			upL.x -= 13;
			upL.y -= 26;
		} else { // defaults to southeast
			upL.x +=  (a.a * this.bounds.width()) + 3 ;
			upL.y +=  (a.d * this.bounds.height())  + 3;
		}
		
		this.position = upL;

		this.node.style.left = this.position.x + "px";
		this.node.style.top = this.position.y + "px";
	}
});



/**
 * Implements a Command to move shapes
 * 
 */ 
ORYX.Core.Command.Move = ORYX.Core.Command.extend({
	construct: function(moveShapes, offset, parent, selectedShapes, plugin){
		this.moveShapes = moveShapes;
		this.selectedShapes = selectedShapes;
		this.offset 	= offset;
		this.plugin		= plugin;
		// Defines the old/new parents for the particular shape
		this.newParents	= moveShapes.collect(function(t){ return parent || t.parent });
		this.oldParents	= moveShapes.collect(function(shape){ return shape.parent });
		this.dockedNodes= moveShapes.findAll(function(shape){ return shape instanceof ORYX.Core.Node && shape.dockers.length == 1}).collect(function(shape){ return {docker:shape.dockers[0], dockedShape:shape.dockers[0].getDockedShape(), refPoint:shape.dockers[0].referencePoint} });
	},			
	execute: function(){
		this.dockAllShapes()				
		// Moves by the offset
		this.move( this.offset);
		// Addes to the new parents
		this.addShapeToParent( this.newParents ); 
		// Set the selection to the current selection
		this.selectCurrentShapes();
		this.plugin.facade.getCanvas().update();
		this.plugin.facade.updateSelection();
	},
	rollback: function(){
		// Moves by the inverted offset
		var offset = { x:-this.offset.x, y:-this.offset.y };
		this.move( offset );
		// Addes to the old parents
		this.addShapeToParent( this.oldParents ); 
		this.dockAllShapes(true)	
		
		// Set the selection to the current selection
		this.selectCurrentShapes();
		this.plugin.facade.getCanvas().update();
		this.plugin.facade.updateSelection();
		
	},
	move:function(offset, doLayout){
		
		// Move all Shapes by these offset
		for(var i=0; i<this.moveShapes.length ;i++){
			var value = this.moveShapes[i];					
			value.bounds.moveBy(offset);
			
			if (value instanceof ORYX.Core.Node) {
				
				(value.dockers||[]).each(function(d){
					d.bounds.moveBy(offset);
				})
				
				// Update all Dockers of Child shapes
				/*var childShapesNodes = value.getChildShapes(true).findAll(function(shape){ return shape instanceof ORYX.Core.Node });							
				var childDockedShapes = childShapesNodes.collect(function(shape){ return shape.getAllDockedShapes() }).flatten().uniq();							
				var childDockedEdge = childDockedShapes.findAll(function(shape){ return shape instanceof ORYX.Core.Edge });							
				childDockedEdge = childDockedEdge.findAll(function(shape){ return shape.getAllDockedShapes().all(function(dsh){ return childShapesNodes.include(dsh) }) });							
				var childDockedDockers = childDockedEdge.collect(function(shape){ return shape.dockers }).flatten();
				
				for (var j = 0; j < childDockedDockers.length; j++) {
					var docker = childDockedDockers[j];
					if (!docker.getDockedShape() && !this.moveShapes.include(docker)) {
						//docker.bounds.moveBy(offset);
						//docker.update();
					}
				}*/
				
				
				var allEdges = [].concat(value.getIncomingShapes())
					.concat(value.getOutgoingShapes())
					// Remove all edges which are included in the selection from the list
					.findAll(function(r){ return	r instanceof ORYX.Core.Edge && !this.moveShapes.any(function(d){ return d == r || (d instanceof ORYX.Core.Controls.Docker && d.parent == r)}) }.bind(this))
					// Remove all edges which are between the node and a node contained in the selection from the list
					.findAll(function(r){ return 	(r.dockers.first().getDockedShape() == value || !this.moveShapes.include(r.dockers.first().getDockedShape())) &&  
													(r.dockers.last().getDockedShape() == value || !this.moveShapes.include(r.dockers.last().getDockedShape()))}.bind(this))
													
				// Layout all outgoing/incoming edges
				this.plugin.layoutEdges(value, allEdges, offset);
				
				
				var allSameEdges = [].concat(value.getIncomingShapes())
					.concat(value.getOutgoingShapes())
					// Remove all edges which are included in the selection from the list
					.findAll(function(r){ return r instanceof ORYX.Core.Edge && r.dockers.first().isDocked() && r.dockers.last().isDocked() && !this.moveShapes.include(r) && !this.moveShapes.any(function(d){ return d == r || (d instanceof ORYX.Core.Controls.Docker && d.parent == r)}) }.bind(this))
					// Remove all edges which are included in the selection from the list
					.findAll(function(r){ return this.moveShapes.indexOf(r.dockers.first().getDockedShape()) > i ||  this.moveShapes.indexOf(r.dockers.last().getDockedShape()) > i}.bind(this))

				for (var j = 0; j < allSameEdges.length; j++) {
					for (var k = 1; k < allSameEdges[j].dockers.length-1; k++) {
						var docker = allSameEdges[j].dockers[k];
						if (!docker.getDockedShape() && !this.moveShapes.include(docker)) {
							docker.bounds.moveBy(offset);
						}
					}
				}	
				
				/*var i=-1;
				var nodes = value.getChildShapes(true);
				var allEdges = [];
				while(++i<nodes.length){
					var edges = [].concat(nodes[i].getIncomingShapes())
						.concat(nodes[i].getOutgoingShapes())
						// Remove all edges which are included in the selection from the list
						.findAll(function(r){ return r instanceof ORYX.Core.Edge && !allEdges.include(r) && r.dockers.any(function(d){ return !value.bounds.isIncluded(d.bounds.center)})})
					allEdges = allEdges.concat(edges);
					if (edges.length <= 0){ continue }
					//this.plugin.layoutEdges(nodes[i], edges, offset);
				}*/
			}
		}
										
	},
	dockAllShapes: function(shouldDocked){
		// Undock all Nodes
		for (var i = 0; i < this.dockedNodes.length; i++) {
			var docker = this.dockedNodes[i].docker;
			
			docker.setDockedShape( shouldDocked ? this.dockedNodes[i].dockedShape : undefined )
			if (docker.getDockedShape()) {
				docker.setReferencePoint(this.dockedNodes[i].refPoint);
				//docker.update();
			}
		}
	},
	
	addShapeToParent:function( parents ){
		
		// For every Shape, add this and reset the position		
		for(var i=0; i<this.moveShapes.length ;i++){
			var currentShape = this.moveShapes[i];
			if(currentShape instanceof ORYX.Core.Node &&
			   currentShape.parent !== parents[i]) {
				
				// Calc the new position
				var unul = parents[i].absoluteXY();
				var csul = currentShape.absoluteXY();
				var x = csul.x - unul.x;
				var y = csul.y - unul.y;

				// Add the shape to the new contained shape
				parents[i].add(currentShape);
				// Add all attached shapes as well
				currentShape.getOutgoingShapes((function(shape) {
					if(shape instanceof ORYX.Core.Node && !this.moveShapes.member(shape)) {
						parents[i].add(shape);
					}
				}).bind(this));

				// Set the new position
				if(currentShape instanceof ORYX.Core.Node && currentShape.dockers.length == 1){
					var b = currentShape.bounds;
					x += b.width()/2;y += b.height()/2
					currentShape.dockers.first().bounds.centerMoveTo(x, y);
				} else {
					currentShape.bounds.moveTo(x, y);
				}
				
			} 
			
			// Update the shape
			//currentShape.update();
			
		}
	},
	selectCurrentShapes:function(){
		this.plugin.facade.setSelection( this.selectedShapes );
	}
});
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if(!ORYX.Plugins)
	ORYX.Plugins = new Object(); 

ORYX.Plugins.ShapeHighlighting = Clazz.extend({

	construct: function(facade) {
		
		this.parentNode = facade.getCanvas().getSvgContainer();
		
		// The parent Node
		this.node = ORYX.Editor.graft("http://www.w3.org/2000/svg", this.parentNode,
					['g']);

		this.highlightNodes = {};
		
		facade.registerOnEvent(ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW, this.setHighlight.bind(this));
		facade.registerOnEvent(ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE, this.hideHighlight.bind(this));		

	},

	setHighlight: function(options) {
		if(options && options.highlightId){
			var node = this.highlightNodes[options.highlightId];
			
			if(!node){
				node= ORYX.Editor.graft("http://www.w3.org/2000/svg", this.node,
					['path', {
						"stroke-width": 2.0, "fill":"none"
						}]);	
			
				this.highlightNodes[options.highlightId] = node;
			}

			if(options.elements && options.elements.length > 0) {
				
				this.setAttributesByStyle( node, options );
				this.show(node);
			
			} else {
			
				this.hide(node);			
			
			}
			
		}
	},
	
	hideHighlight: function(options) {
		if(options && options.highlightId && this.highlightNodes[options.highlightId]){
			this.hide(this.highlightNodes[options.highlightId]);
		}		
	},
	
	hide: function(node) {
		node.setAttributeNS(null, 'display', 'none');
	},

	show: function(node) {
		node.setAttributeNS(null, 'display', '');
	},
	
	setAttributesByStyle: function( node, options ){
		
		// If the style say, that it should look like a rectangle
		if( options.style && options.style == ORYX.CONFIG.SELECTION_HIGHLIGHT_STYLE_RECTANGLE ){
			
			// Set like this
			var bo = options.elements[0].absoluteBounds();
			
			var strWidth = options.strokewidth ? options.strokewidth 	: ORYX.CONFIG.BORDER_OFFSET
			
			node.setAttributeNS(null, "d", this.getPathRectangle( bo.a, bo.b , strWidth ) );
			node.setAttributeNS(null, "stroke", 		options.color 		? options.color 		: ORYX.CONFIG.SELECTION_HIGHLIGHT_COLOR);
			node.setAttributeNS(null, "stroke-opacity", options.opacity 	? options.opacity 		: 0.2);
			node.setAttributeNS(null, "stroke-width", 	strWidth);
						
		} else if(options.elements.length == 1 
					&& options.elements[0] instanceof ORYX.Core.Edge &&
					options.highlightId != "selection") {
			
			/* Highlight containment of edge's childs */
			node.setAttributeNS(null, "d", this.getPathEdge(options.elements[0].dockers));
			node.setAttributeNS(null, "stroke", options.color ? options.color : ORYX.CONFIG.SELECTION_HIGHLIGHT_COLOR);
			node.setAttributeNS(null, "stroke-opacity", options.opacity ? options.opacity : 0.2);
			node.setAttributeNS(null, "stroke-width", 	ORYX.CONFIG.OFFSET_EDGE_BOUNDS);
			
		}else {
			// If not, set just the corners
			node.setAttributeNS(null, "d", this.getPathByElements(options.elements));
			node.setAttributeNS(null, "stroke", options.color ? options.color : ORYX.CONFIG.SELECTION_HIGHLIGHT_COLOR);
			node.setAttributeNS(null, "stroke-opacity", options.opacity ? options.opacity : 1.0);
			node.setAttributeNS(null, "stroke-width", 	options.strokewidth ? options.strokewidth 	: 2.0);
						
		}
	},
	
	getPathByElements: function(elements){
		if(!elements || elements.length <= 0) {return undefined}
		
		// Get the padding and the size
		var padding = ORYX.CONFIG.SELECTED_AREA_PADDING;
		
		var path = ""
		
		// Get thru all Elements
		elements.each((function(element) {
			if(!element) {return}
			// Get the absolute Bounds and the two Points
			var bounds = element.absoluteBounds();
			bounds.widen(padding)
			var a = bounds.upperLeft();
			var b = bounds.lowerRight();
			
			path = path + this.getPath(a ,b);
												
		}).bind(this));

		return path;
		
	},

	getPath: function(a, b){
				
		return this.getPathCorners(a, b);
	
	},
			
	getPathCorners: function(a, b){

		var size = ORYX.CONFIG.SELECTION_HIGHLIGHT_SIZE;
				
		var path = ""

		// Set: Upper left 
		path = path + "M" + a.x + " " + (a.y + size) + " l0 -" + size + " l" + size + " 0 ";
		// Set: Lower left
		path = path + "M" + a.x + " " + (b.y - size) + " l0 " + size + " l" + size + " 0 ";
		// Set: Lower right
		path = path + "M" + b.x + " " + (b.y - size) + " l0 " + size + " l-" + size + " 0 ";
		// Set: Upper right
		path = path + "M" + b.x + " " + (a.y + size) + " l0 -" + size + " l-" + size + " 0 ";
		
		return path;
	},
	
	getPathRectangle: function(a, b, strokeWidth){

		var size = ORYX.CONFIG.SELECTION_HIGHLIGHT_SIZE;

		var path 	= ""
		var offset 	= strokeWidth / 2.0;
		 
		// Set: Upper left 
		path = path + "M" + (a.x + offset) + " " + (a.y);
		path = path + " L" + (a.x + offset) + " " + (b.y - offset);
		path = path + " L" + (b.x - offset) + " " + (b.y - offset);
		path = path + " L" + (b.x - offset) + " " + (a.y + offset);
		path = path + " L" + (a.x + offset) + " " + (a.y + offset);

		return path;
	},
	
	getPathEdge: function(edgeDockers) {
		var length = edgeDockers.length;
		var path = "M" + edgeDockers[0].bounds.center().x + " " 
					+  edgeDockers[0].bounds.center().y;
		
		for(i=1; i<length; i++) {
			var dockerPoint = edgeDockers[i].bounds.center();
			path = path + " L" + dockerPoint.x + " " +  dockerPoint.y;
		}
		
		return path;
	}
	
});

 
ORYX.Plugins.HighlightingSelectedShapes = Clazz.extend({

	construct: function(facade) {
		this.facade = facade;
		this.opacityFull = 0.9;
		this.opacityLow = 0.4;

		// Register on Dragging-Events for show/hide of ShapeMenu
		//this.facade.registerOnEvent(ORYX.CONFIG.EVENT_DRAGDROP_START, this.hide.bind(this));
		//this.facade.registerOnEvent(ORYX.CONFIG.EVENT_DRAGDROP_END,  this.show.bind(this));		
	},

	/**
	 * On the Selection-Changed
	 *
	 */
	onSelectionChanged: function(event) {
		if(event.elements && event.elements.length > 1) {
			this.facade.raiseEvent({
										type:		ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW, 
										highlightId:'selection',
										elements:	event.elements.without(event.subSelection),
										color:		ORYX.CONFIG.SELECTION_HIGHLIGHT_COLOR,
										opacity: 	!event.subSelection ? this.opacityFull : this.opacityLow
									});

			if(event.subSelection){
				this.facade.raiseEvent({
											type:		ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW, 
											highlightId:'subselection',
											elements:	[event.subSelection],
											color:		ORYX.CONFIG.SELECTION_HIGHLIGHT_COLOR,
											opacity: 	this.opacityFull
										});	
			} else {
				this.facade.raiseEvent({type:ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE, highlightId:'subselection'});				
			}						
			
		} else {
			this.facade.raiseEvent({type:ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE, highlightId:'selection'});
			this.facade.raiseEvent({type:ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE, highlightId:'subselection'});
		}		
	}
});/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if(!ORYX.Plugins)
	ORYX.Plugins = new Object();

ORYX.Plugins.DragDocker = Clazz.extend({

	/**
	 *	Constructor
	 *	@param {Object} Facade: The Facade of the Editor
	 */
	construct: function(facade) {
		this.facade = facade;
		
		// Set the valid and invalid color
		this.VALIDCOLOR 	= ORYX.CONFIG.SELECTION_VALID_COLOR;
		this.INVALIDCOLOR 	= ORYX.CONFIG.SELECTION_INVALID_COLOR;
		
		// Define Variables 
		this.shapeSelection = undefined;
		this.docker 		= undefined;
		this.dockerParent   = undefined;
		this.dockerSource 	= undefined;
		this.dockerTarget 	= undefined;
		this.lastUIObj 		= undefined;
		this.isStartDocker 	= undefined;
		this.isEndDocker 	= undefined;
		this.undockTreshold	= 10;
		this.initialDockerPosition = undefined;
		this.outerDockerNotMoved = undefined;
		this.isValid 		= false;
		
		// For the Drag and Drop
		// Register on MouseDown-Event on a Docker
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_MOUSEDOWN, this.handleMouseDown.bind(this));
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_DOCKERDRAG, this.handleDockerDrag.bind(this));

		
		// Register on over/out to show / hide a docker
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_MOUSEOVER, this.handleMouseOver.bind(this));
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_MOUSEOUT, this.handleMouseOut.bind(this));		
		
		
	},
	
	/**
	 * MouseOut Handler
	 *
	 */
	handleMouseOut: function(event, uiObj) {
		// If there is a Docker, hide this
		if(!this.docker && uiObj instanceof ORYX.Core.Controls.Docker) {
			uiObj.hide()	
		} else if(!this.docker && uiObj instanceof ORYX.Core.Edge) {
			uiObj.dockers.each(function(docker){
				docker.hide();
			})
		}
	},

	/**
	 * MouseOver Handler
	 *
	 */
	handleMouseOver: function(event, uiObj) {
		// If there is a Docker, show this		
		if(!this.docker && uiObj instanceof ORYX.Core.Controls.Docker) {
			uiObj.show()	
		} else if(!this.docker && uiObj instanceof ORYX.Core.Edge) {
			uiObj.dockers.each(function(docker){
				docker.show();
			})
		}
	},
	/**
	 * DockerDrag Handler
	 * delegates the uiEvent of the drag event to the mouseDown function
	 */
	handleDockerDrag: function(event, uiObj) {
		this.handleMouseDown(event.uiEvent, uiObj);
	},
	
	/**
	 * MouseDown Handler
	 *
	 */	
	handleMouseDown: function(event, uiObj) {
		// If there is a Docker
		if(uiObj instanceof ORYX.Core.Controls.Docker && uiObj.isMovable) {
			
			/* Buffering shape selection and clear selection*/
			this.shapeSelection = this.facade.getSelection();
			this.facade.setSelection();
			
			this.docker = uiObj;
			this.initialDockerPosition = this.docker.bounds.center();
			this.outerDockerNotMoved = false;			
			this.dockerParent = uiObj.parent;
			
			// Define command arguments
			this._commandArg = {docker:uiObj, dockedShape:uiObj.getDockedShape(), refPoint:uiObj.referencePoint || uiObj.bounds.center()};

			// Show the Docker
			this.docker.show();
			
			// If the Dockers Parent is an Edge, 
			//  and the Docker is either the first or last Docker of the Edge
			if(uiObj.parent instanceof ORYX.Core.Edge && 
			   	(uiObj.parent.dockers.first() == uiObj || uiObj.parent.dockers.last() == uiObj)) {
				
				// Get the Edge Source or Target
				if(uiObj.parent.dockers.first() == uiObj && uiObj.parent.dockers.last().getDockedShape()) {
					this.dockerTarget = uiObj.parent.dockers.last().getDockedShape()
				} else if(uiObj.parent.dockers.last() == uiObj && uiObj.parent.dockers.first().getDockedShape()) {
					this.dockerSource = uiObj.parent.dockers.first().getDockedShape()
				}
				
			} else {
				// If there parent is not an Edge, undefined the Source and Target
				this.dockerSource = undefined;
				this.dockerTarget = undefined;				
			}
		
			this.isStartDocker = this.docker.parent.dockers.first() === this.docker
			this.isEndDocker = this.docker.parent.dockers.last() === this.docker
					
			// add to canvas while dragging
			this.facade.getCanvas().add(this.docker.parent);
			
			// Hide all Labels from Docker
			this.docker.parent.getLabels().each(function(label) {
				label.hide();
			});
			
			// Undocked the Docker from current Shape
			if ((!this.isStartDocker && !this.isEndDocker) || !this.docker.isDocked()) {
				
				this.docker.setDockedShape(undefined)
				// Set the Docker to the center of the mouse pointer
				var evPos = this.facade.eventCoordinates(event);
				this.docker.bounds.centerMoveTo(evPos);
				//this.docker.update()
				//this.facade.getCanvas().update();
				this.dockerParent._update();
			} else {
				this.outerDockerNotMoved = true;
			}
			
			var option = {movedCallback: this.dockerMoved.bind(this), upCallback: this.dockerMovedFinished.bind(this)}
				
			// Enable the Docker for Drag'n'Drop, give the mouseMove and mouseUp-Callback with
			ORYX.Core.UIEnableDrag(event, uiObj, option);
		}
	},
	
	/**
	 * Docker MouseMove Handler
	 *
	 */
	dockerMoved: function(event) {
		this.outerDockerNotMoved = false;
		var snapToMagnet = undefined;
		
		if (this.docker.parent) {
			if (this.isStartDocker || this.isEndDocker) {
			
				// Get the EventPosition and all Shapes on these point
				var evPos = this.facade.eventCoordinates(event);
				
				if(this.docker.isDocked()) {
					/* Only consider start/end dockers if they are moved over a treshold */
					var distanceDockerPointer = 
						ORYX.Core.Math.getDistancePointToPoint(evPos, this.initialDockerPosition);
					if(distanceDockerPointer < this.undockTreshold) {
						this.outerDockerNotMoved = true;
						return;
					}
					
					/* Undock the docker */
					this.docker.setDockedShape(undefined)
					// Set the Docker to the center of the mouse pointer
					//this.docker.bounds.centerMoveTo(evPos);
					this.dockerParent._update();
				}
				
				var shapes = this.facade.getCanvas().getAbstractShapesAtPosition(evPos);
				
				// Get the top level Shape on these, but not the same as Dockers parent
				var uiObj = shapes.pop();
				if (this.docker.parent === uiObj) {
					uiObj = shapes.pop();
				}
				
				
				
				// If the top level Shape the same as the last Shape, then return
				if (this.lastUIObj == uiObj) {
				//return;
				
				// If the top level uiObj instance of Shape and this isn't the parent of the docker 
				}
				else 
					if (uiObj instanceof ORYX.Core.Shape) {
					
						// Get the StencilSet of the Edge
						var sset = this.docker.parent.getStencil().stencilSet();
						
						// Ask by the StencilSet if the source, the edge and the target valid connections.
						if (this.docker.parent instanceof ORYX.Core.Edge) {
							
							var highestParent = this.getHighestParentBeforeCanvas(uiObj);
							/* Ensure that the shape to dock is not a child shape 
							 * of the same edge.
							 */
							if(highestParent instanceof ORYX.Core.Edge 
									&& this.docker.parent === highestParent) {
								this.isValid = false;
								this.dockerParent._update();
								return;
							}
							this.isValid = false;
							var curObj = uiObj, orgObj = uiObj;
							while(!this.isValid && curObj && !(curObj instanceof ORYX.Core.Canvas)){
								uiObj = curObj;
								this.isValid = this.facade.getRules().canConnect({
											sourceShape: this.dockerSource ? // Is there a docked source 
															this.dockerSource : // than set this
															(this.isStartDocker ? // if not and if the Docker is the start docker
																uiObj : // take the last uiObj
																undefined), // if not set it to undefined;
											edgeShape: this.docker.parent,
											targetShape: this.dockerTarget ? // Is there a docked target 
											this.dockerTarget : // than set this
														(this.isEndDocker ? // if not and if the Docker is not the start docker
															uiObj : // take the last uiObj
															undefined) // if not set it to undefined;
										});
								curObj = curObj.parent;
							}
							
							// Reset uiObj if no 
							// valid parent is found
							if (!this.isValid){
								uiObj = orgObj;
							}

						}
						else {
							this.isValid = this.facade.getRules().canConnect({
								sourceShape: uiObj,
								edgeShape: this.docker.parent,
								targetShape: this.docker.parent
							});
						}
						
						// If there is a lastUIObj, hide the magnets
						if (this.lastUIObj) {
							this.hideMagnets(this.lastUIObj)
						}
						
						// If there is a valid connection, show the magnets
						if (this.isValid) {
							this.showMagnets(uiObj)
						}
						
						// Set the Highlight Rectangle by these value
						this.showHighlight(uiObj, this.isValid ? this.VALIDCOLOR : this.INVALIDCOLOR);
						
						// Buffer the current Shape
						this.lastUIObj = uiObj;
					}
					else {
						// If there is no top level Shape, then hide the highligting of the last Shape
						this.hideHighlight();
						this.lastUIObj ? this.hideMagnets(this.lastUIObj) : null;
						this.lastUIObj = undefined;
						this.isValid = false;
					}
				
				// Snap to the nearest Magnet
				if (this.lastUIObj && this.isValid && !(event.shiftKey || event.ctrlKey)) {
					snapToMagnet = this.lastUIObj.magnets.find(function(magnet){
						return magnet.absoluteBounds().isIncluded(evPos)
					});
					
					if (snapToMagnet) {
						this.docker.bounds.centerMoveTo(snapToMagnet.absoluteCenterXY());
					//this.docker.update()
					}
				}
			}
		}
		// Snap to on the nearest Docker of the same parent
		if(!(event.shiftKey || event.ctrlKey) && !snapToMagnet) {
			var minOffset = ORYX.CONFIG.DOCKER_SNAP_OFFSET;
			var nearestX = minOffset + 1
			var nearestY = minOffset + 1
			
			var dockerCenter = this.docker.bounds.center();
			
			if (this.docker.parent) {
				
				this.docker.parent.dockers.each((function(docker){
					if (this.docker == docker) {
						return
					};
					
					var center = docker.referencePoint ? docker.getAbsoluteReferencePoint() : docker.bounds.center();
					
					nearestX = Math.abs(nearestX) > Math.abs(center.x - dockerCenter.x) ? center.x - dockerCenter.x : nearestX;
					nearestY = Math.abs(nearestY) > Math.abs(center.y - dockerCenter.y) ? center.y - dockerCenter.y : nearestY;
					
					
				}).bind(this));
				
				if (Math.abs(nearestX) < minOffset || Math.abs(nearestY) < minOffset) {
					nearestX = Math.abs(nearestX) < minOffset ? nearestX : 0;
					nearestY = Math.abs(nearestY) < minOffset ? nearestY : 0;
					
					this.docker.bounds.centerMoveTo(dockerCenter.x + nearestX, dockerCenter.y + nearestY);
					//this.docker.update()
				} else {
					
					
					
					var previous = this.docker.parent.dockers[Math.max(this.docker.parent.dockers.indexOf(this.docker)-1, 0)]
					var next = this.docker.parent.dockers[Math.min(this.docker.parent.dockers.indexOf(this.docker)+1, this.docker.parent.dockers.length-1)]
					
					if (previous && next && previous !== this.docker && next !== this.docker){
						var cp = previous.bounds.center();
						var cn = next.bounds.center();
						var cd = this.docker.bounds.center();
						
						// Checks if the point is on the line between previous and next
						if (ORYX.Core.Math.isPointInLine(cd.x, cd.y, cp.x, cp.y, cn.x, cn.y, 10)) {
							// Get the rise
							var raise = (Number(cn.y)-Number(cp.y))/(Number(cn.x)-Number(cp.x));
							// Calculate the intersection point
							var intersecX = ((cp.y-(cp.x*raise))-(cd.y-(cd.x*(-Math.pow(raise,-1)))))/((-Math.pow(raise,-1))-raise);
							var intersecY = (cp.y-(cp.x*raise))+(raise*intersecX);
							
							if(isNaN(intersecX) || isNaN(intersecY)) {return;}
							
							this.docker.bounds.centerMoveTo(intersecX, intersecY);
						}
					}
					
				}
			}
		}
		//this.facade.getCanvas().update();
		this.dockerParent._update();
	},

	/**
	 * Docker MouseUp Handler
	 *
	 */
	dockerMovedFinished: function(event) {
		
		/* Reset to buffered shape selection */
		this.facade.setSelection(this.shapeSelection);
		
		// Hide the border
		this.hideHighlight();
		
		// Show all Labels from Docker
		this.dockerParent.getLabels().each(function(label){
			label.show();
			//label.update();
		});
	
		// If there is a last top level Shape
		if(this.lastUIObj && (this.isStartDocker || this.isEndDocker)){				
			// If there is a valid connection, the set as a docked Shape to them
			if(this.isValid) {
				
				this.docker.setDockedShape(this.lastUIObj);	
				
				this.facade.raiseEvent({
					type 	:ORYX.CONFIG.EVENT_DRAGDOCKER_DOCKED, 
					docker	: this.docker,
					parent	: this.docker.parent,
					target	: this.lastUIObj
				});
			}
			
			this.hideMagnets(this.lastUIObj)
		}
		
		// Hide the Docker
		this.docker.hide();
		
		if(this.outerDockerNotMoved) {
			// Get the EventPosition and all Shapes on these point
			var evPos = this.facade.eventCoordinates(event);
			var shapes = this.facade.getCanvas().getAbstractShapesAtPosition(evPos);
			
			/* Remove edges from selection */
			var shapeWithoutEdges = shapes.findAll(function(node) {
				return node instanceof ORYX.Core.Node;
			});
			shapes = shapeWithoutEdges.length ? shapeWithoutEdges : shapes;
			this.facade.setSelection(shapes);
		} else {
			//Command-Pattern for dragging one docker
			var dragDockerCommand = ORYX.Core.Command.extend({
				construct: function(docker, newPos, oldPos, newDockedShape, oldDockedShape, facade){
					this.docker 		= docker;
					this.index			= docker.parent.dockers.indexOf(docker);
					this.newPosition	= newPos;
					this.newDockedShape = newDockedShape;
					this.oldPosition	= oldPos;
					this.oldDockedShape	= oldDockedShape;
					this.facade			= facade;
					this.index			= docker.parent.dockers.indexOf(docker);
					this.shape			= docker.parent;
					
				},			
				execute: function(){
					if (!this.docker.parent){
						this.docker = this.shape.dockers[this.index];
					}
					this.dock( this.newDockedShape, this.newPosition );
					this.removedDockers = this.shape.removeUnusedDockers();
					this.facade.updateSelection();
				},
				rollback: function(){
					this.dock( this.oldDockedShape, this.oldPosition );
					(this.removedDockers||$H({})).each(function(d){
						this.shape.add(d.value, Number(d.key));
						this.shape._update(true);
					}.bind(this))
					this.facade.updateSelection();
				},
				dock:function( toDockShape, pos ){			
					// Set the Docker to the new Shape
					this.docker.setDockedShape( undefined );
					if( toDockShape ){			
						this.docker.setDockedShape( toDockShape );	
						this.docker.setReferencePoint( pos );
						//this.docker.update();	
						//this.docker.parent._update();				
					} else {
						this.docker.bounds.centerMoveTo( pos );
					}
	
					this.facade.getCanvas().update();
					
												
								
				}
			});
			
			
			if (this.docker.parent){
				// Instanziate the dockCommand
				var command = new dragDockerCommand(this.docker, this.docker.getDockedShape() ? this.docker.referencePoint : this.docker.bounds.center(), this._commandArg.refPoint, this.docker.getDockedShape(), this._commandArg.dockedShape, this.facade);
				this.facade.executeCommands( [command] );	
			}
		}
		
	

		

		// Update all Shapes
		//this.facade.updateSelection();
			
		// Undefined all variables
		this.docker 		= undefined;
		this.dockerParent   = undefined;
		this.dockerSource 	= undefined;
		this.dockerTarget 	= undefined;	
		this.lastUIObj 		= undefined;		
	},
	
	/**
	 * Hide the highlighting
	 */
	hideHighlight: function() {
		this.facade.raiseEvent({type:ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE, highlightId:'validDockedShape'});
	},

	/**
	 * Show the highlighting
	 *
	 */
	showHighlight: function(uiObj, color) {
		
		this.facade.raiseEvent({
										type:		ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW, 
										highlightId:'validDockedShape',
										elements:	[uiObj],
										color:		color
									});
	},
	
	showMagnets: function(uiObj){
		uiObj.magnets.each(function(magnet) {
			magnet.show();
		});
	},
	
	hideMagnets: function(uiObj){
		uiObj.magnets.each(function(magnet) {
			magnet.hide();
		});
	},
	
	getHighestParentBeforeCanvas: function(shape) {
		if(!(shape instanceof ORYX.Core.Shape)) {return undefined;}
		
		var parent = shape.parent;
		while(parent && !(parent.parent instanceof ORYX.Core.Canvas)) {
			parent = parent.parent;
		}	
		
		return parent;		
	}	

});

/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if(!ORYX.Plugins)
	ORYX.Plugins = new Object();

ORYX.Plugins.AddDocker = Clazz.extend({

	/**
	 *	Constructor
	 *	@param {Object} Facade: The Facade of the Editor
	 */
	construct: function(facade) {
		this.facade = facade;

		this.facade.offer({
			'name':ORYX.I18N.AddDocker.add,
			'functionality': this.enableAddDocker.bind(this),
			'group': ORYX.I18N.AddDocker.group,
			'icon': ORYX.PATH + "images/vector_add.png",
			'description': ORYX.I18N.AddDocker.addDesc,
			'index': 1,
            'toggle': true,
			'minShape': 0,
			'maxShape': 0});


		this.facade.offer({
			'name':ORYX.I18N.AddDocker.del,
			'functionality': this.enableDeleteDocker.bind(this),
			'group': ORYX.I18N.AddDocker.group,
			'icon': ORYX.PATH + "images/vector_delete.png",
			'description': ORYX.I18N.AddDocker.delDesc,
			'index': 2,
            'toggle': true,
			'minShape': 0,
			'maxShape': 0});
		
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_MOUSEDOWN, this.handleMouseDown.bind(this));
	},
	
	enableAddDocker: function(button, pressed) {
        //FIXME This should be done while construct, but this isn't possible right now!
        this.addDockerButton = button;
        
        // Unpress deleteDockerButton
        if(pressed && this.deleteDockerButton)
            this.deleteDockerButton.toggle(false);
	},
    enableDeleteDocker: function(button, pressed) {
        //FIXME This should be done while construct, but this isn't possible right now!
        this.deleteDockerButton = button;
        
        // Unpress addDockerButton
        if(pressed && this.addDockerButton)
            this.addDockerButton.toggle(false);
    },
    
    enabledAdd: function(){
        return this.addDockerButton ? this.addDockerButton.pressed : false;
    },
    enabledDelete: function(){
        return this.deleteDockerButton ? this.deleteDockerButton.pressed : false;
    },
	
	/**
	 * MouseDown Handler
	 *
	 */	
	handleMouseDown: function(event, uiObj) {
		if (this.enabledAdd() && uiObj instanceof ORYX.Core.Edge) {
            this.newDockerCommand({
                edge: uiObj,
                position: this.facade.eventCoordinates(event)
            });
		} else if (this.enabledDelete() &&
				   uiObj instanceof ORYX.Core.Controls.Docker &&
				   uiObj.parent instanceof ORYX.Core.Edge) {
            this.newDockerCommand({
                edge: uiObj.parent,
                docker: uiObj
            });
		} else if ( this.enabledAdd() ){
            this.addDockerButton.toggle(false);
        } else if ( this.enabledDelete() ) {
            this.deleteDockerButton.toggle(false);
        }
	},
    
    // Options: edge (required), position (required if add), docker (required if delete)
    newDockerCommand: function(options){
        if(!options.edge)
            return;

        var commandClass = ORYX.Core.Command.extend({
            construct: function(addEnabled, deleteEnabled, edge, docker, pos, facade){
                this.addEnabled = addEnabled;
                this.deleteEnabled = deleteEnabled;
                this.edge = edge;
                this.docker = docker;
                this.pos = pos;
                this.facade = facade;
				//this.index = docker.parent.dockers.indexOf(docker);
            },
            execute: function(){
                if (this.addEnabled) {
					if (!this.docker){
                    	this.docker = this.edge.addDocker(this.pos);
						this.index = this.edge.dockers.indexOf(this.docker);
					} else {
                    	this.edge.add(this.docker, this.index);
					}
                }
                else if (this.deleteEnabled) {
					this.index = this.edge.dockers.indexOf(this.docker);
                    this.pos = this.docker.bounds.center();
                    this.edge.removeDocker(this.docker);
                }
                this.edge.getLabels().invoke("show");
                this.facade.getCanvas().update();
                this.facade.updateSelection();
            },
            rollback: function(){
                if (this.addEnabled) {
                    if (this.docker instanceof ORYX.Core.Controls.Docker) {
                        this.edge.removeDocker(this.docker);
                    }
                }
                else if (this.deleteEnabled) {
                    this.edge.add(this.docker, this.index);
                }
                this.edge.getLabels().invoke("show");
                this.facade.getCanvas().update();
                this.facade.updateSelection();
            }
        })
        
        var command = new commandClass(this.enabledAdd(), this.enabledDelete(), options.edge, options.docker, options.position, this.facade);
        
        this.facade.executeCommands([command]);
    }
});

/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if(!ORYX.Plugins)
	ORYX.Plugins = new Object();

 ORYX.Plugins.SelectionFrame = Clazz.extend({

	construct: function(facade) {
		this.facade = facade;

		// Register on MouseEvents
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_MOUSEDOWN, this.handleMouseDown.bind(this));
		document.documentElement.addEventListener(ORYX.CONFIG.EVENT_MOUSEUP, this.handleMouseUp.bind(this), true);

		// Some initiale variables
		this.position 		= {x:0, y:0};
		this.size 			= {width:0, height:0};
		this.offsetPosition = {x: 0, y: 0}

		// (Un)Register Mouse-Move Event
		this.moveCallback 	= undefined;
		this.offsetScroll	= {x:0,y:0}
		// HTML-Node of Selection-Frame
		this.node = ORYX.Editor.graft("http://www.w3.org/1999/xhtml", this.facade.getCanvas().getHTMLContainer(),
			['div', {'class':'Oryx_SelectionFrame'}]);

		this.hide();
	},

	handleMouseDown: function(event, uiObj) {
		// If there is the Canvas
		if( uiObj instanceof ORYX.Core.Canvas ) {
			// Calculate the Offset
			var scrollNode = uiObj.rootNode.parentNode.parentNode;
						
			var a = this.facade.getCanvas().node.getScreenCTM();
			this.offsetPosition = {
				x: a.e,
				y: a.f
			}

			// Set the new Position
			this.setPos({x: Event.pointerX(event)-this.offsetPosition.x, y:Event.pointerY(event)-this.offsetPosition.y});
			// Reset the size
			this.resize({width:0, height:0});
			this.moveCallback = this.handleMouseMove.bind(this);
		
			// Register Mouse-Move Event
			document.documentElement.addEventListener(ORYX.CONFIG.EVENT_MOUSEMOVE, this.moveCallback, false);

			this.offsetScroll		= {x:scrollNode.scrollLeft,y:scrollNode.scrollTop};
			
			// Show the Frame
			this.show();
			
			

		}

		Event.stop(event);
	},

	handleMouseUp: function(event) {
		// If there was an MouseMoving
		if(this.moveCallback) {
			// Hide the Frame
			this.hide();

			// Unregister Mouse-Move
			document.documentElement.removeEventListener(ORYX.CONFIG.EVENT_MOUSEMOVE, this.moveCallback, false);			
		
			this.moveCallback = undefined;

			var corrSVG = this.facade.getCanvas().node.getScreenCTM();

			// Calculate the positions of the Frame
			var a = {
				x: this.size.width > 0 ? this.position.x : this.position.x + this.size.width,
				y: this.size.height > 0 ? this.position.y : this.position.y + this.size.height
			}

			var b = {
				x: a.x + Math.abs(this.size.width),
				y: a.y + Math.abs(this.size.height)
			}

			// Fit to SVG-Coordinates
			a.x /= corrSVG.a; a.y /= corrSVG.d;
			b.x /= corrSVG.a; b.y /= corrSVG.d;


			// Calculate the elements from the childs of the canvas
			var elements = this.facade.getCanvas().getChildShapes(true).findAll(function(value) {
				var absBounds = value.absoluteBounds();
				var bA = absBounds.upperLeft();
				var bB = absBounds.lowerRight();
				if(bA.x > a.x && bA.y > a.y && bB.x < b.x && bB.y < b.y)
					return true;
				return false
			});

			// Set the selection
			this.facade.setSelection(elements);
		}
	},

	handleMouseMove: function(event) {
		// Calculate the size
		var size = {
			width	: Event.pointerX(event) - this.position.x - this.offsetPosition.x,
			height	: Event.pointerY(event) - this.position.y - this.offsetPosition.y,
		}

		var scrollNode 	= this.facade.getCanvas().rootNode.parentNode.parentNode;
		size.width 		-= this.offsetScroll.x - scrollNode.scrollLeft; 
		size.height 	-= this.offsetScroll.y - scrollNode.scrollTop;
						
		// Set the size
		this.resize(size);

		Event.stop(event);
	},

	hide: function() {
		this.node.style.display = "none";
	},

	show: function() {
		this.node.style.display = "";
	},

	setPos: function(pos) {
		// Set the Position
		this.node.style.top = pos.y + "px";
		this.node.style.left = pos.x + "px";
		this.position = pos;
	},

	resize: function(size) {

		// Calculate the negative offset
		this.setPos(this.position);
		this.size = Object.clone(size);
		
		if(size.width < 0) {
			this.node.style.left = (this.position.x + size.width) + "px";
			size.width = - size.width;
		}
		if(size.height < 0) {
			this.node.style.top = (this.position.y + size.height) + "px";
			size.height = - size.height;
		}

		// Set the size
		this.node.style.width = size.width + "px";
		this.node.style.height = size.height + "px";
	}

});


/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if(!ORYX.Plugins)
	ORYX.Plugins = new Object(); 

ORYX.Plugins.ShapeHighlighting = Clazz.extend({

	construct: function(facade) {
		
		this.parentNode = facade.getCanvas().getSvgContainer();
		
		// The parent Node
		this.node = ORYX.Editor.graft("http://www.w3.org/2000/svg", this.parentNode,
					['g']);

		this.highlightNodes = {};
		
		facade.registerOnEvent(ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW, this.setHighlight.bind(this));
		facade.registerOnEvent(ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE, this.hideHighlight.bind(this));		

	},

	setHighlight: function(options) {
		if(options && options.highlightId){
			var node = this.highlightNodes[options.highlightId];
			
			if(!node){
				node= ORYX.Editor.graft("http://www.w3.org/2000/svg", this.node,
					['path', {
						"stroke-width": 2.0, "fill":"none"
						}]);	
			
				this.highlightNodes[options.highlightId] = node;
			}

			if(options.elements && options.elements.length > 0) {
				
				this.setAttributesByStyle( node, options );
				this.show(node);
			
			} else {
			
				this.hide(node);			
			
			}
			
		}
	},
	
	hideHighlight: function(options) {
		if(options && options.highlightId && this.highlightNodes[options.highlightId]){
			this.hide(this.highlightNodes[options.highlightId]);
		}		
	},
	
	hide: function(node) {
		node.setAttributeNS(null, 'display', 'none');
	},

	show: function(node) {
		node.setAttributeNS(null, 'display', '');
	},
	
	setAttributesByStyle: function( node, options ){
		
		// If the style say, that it should look like a rectangle
		if( options.style && options.style == ORYX.CONFIG.SELECTION_HIGHLIGHT_STYLE_RECTANGLE ){
			
			// Set like this
			var bo = options.elements[0].absoluteBounds();
			
			var strWidth = options.strokewidth ? options.strokewidth 	: ORYX.CONFIG.BORDER_OFFSET
			
			node.setAttributeNS(null, "d", this.getPathRectangle( bo.a, bo.b , strWidth ) );
			node.setAttributeNS(null, "stroke", 		options.color 		? options.color 		: ORYX.CONFIG.SELECTION_HIGHLIGHT_COLOR);
			node.setAttributeNS(null, "stroke-opacity", options.opacity 	? options.opacity 		: 0.2);
			node.setAttributeNS(null, "stroke-width", 	strWidth);
						
		} else if(options.elements.length == 1 
					&& options.elements[0] instanceof ORYX.Core.Edge &&
					options.highlightId != "selection") {
			
			/* Highlight containment of edge's childs */
			node.setAttributeNS(null, "d", this.getPathEdge(options.elements[0].dockers));
			node.setAttributeNS(null, "stroke", options.color ? options.color : ORYX.CONFIG.SELECTION_HIGHLIGHT_COLOR);
			node.setAttributeNS(null, "stroke-opacity", options.opacity ? options.opacity : 0.2);
			node.setAttributeNS(null, "stroke-width", 	ORYX.CONFIG.OFFSET_EDGE_BOUNDS);
			
		}else {
			// If not, set just the corners
			node.setAttributeNS(null, "d", this.getPathByElements(options.elements));
			node.setAttributeNS(null, "stroke", options.color ? options.color : ORYX.CONFIG.SELECTION_HIGHLIGHT_COLOR);
			node.setAttributeNS(null, "stroke-opacity", options.opacity ? options.opacity : 1.0);
			node.setAttributeNS(null, "stroke-width", 	options.strokewidth ? options.strokewidth 	: 2.0);
						
		}
	},
	
	getPathByElements: function(elements){
		if(!elements || elements.length <= 0) {return undefined}
		
		// Get the padding and the size
		var padding = ORYX.CONFIG.SELECTED_AREA_PADDING;
		
		var path = ""
		
		// Get thru all Elements
		elements.each((function(element) {
			if(!element) {return}
			// Get the absolute Bounds and the two Points
			var bounds = element.absoluteBounds();
			bounds.widen(padding)
			var a = bounds.upperLeft();
			var b = bounds.lowerRight();
			
			path = path + this.getPath(a ,b);
												
		}).bind(this));

		return path;
		
	},

	getPath: function(a, b){
				
		return this.getPathCorners(a, b);
	
	},
			
	getPathCorners: function(a, b){

		var size = ORYX.CONFIG.SELECTION_HIGHLIGHT_SIZE;
				
		var path = ""

		// Set: Upper left 
		path = path + "M" + a.x + " " + (a.y + size) + " l0 -" + size + " l" + size + " 0 ";
		// Set: Lower left
		path = path + "M" + a.x + " " + (b.y - size) + " l0 " + size + " l" + size + " 0 ";
		// Set: Lower right
		path = path + "M" + b.x + " " + (b.y - size) + " l0 " + size + " l-" + size + " 0 ";
		// Set: Upper right
		path = path + "M" + b.x + " " + (a.y + size) + " l0 -" + size + " l-" + size + " 0 ";
		
		return path;
	},
	
	getPathRectangle: function(a, b, strokeWidth){

		var size = ORYX.CONFIG.SELECTION_HIGHLIGHT_SIZE;

		var path 	= ""
		var offset 	= strokeWidth / 2.0;
		 
		// Set: Upper left 
		path = path + "M" + (a.x + offset) + " " + (a.y);
		path = path + " L" + (a.x + offset) + " " + (b.y - offset);
		path = path + " L" + (b.x - offset) + " " + (b.y - offset);
		path = path + " L" + (b.x - offset) + " " + (a.y + offset);
		path = path + " L" + (a.x + offset) + " " + (a.y + offset);

		return path;
	},
	
	getPathEdge: function(edgeDockers) {
		var length = edgeDockers.length;
		var path = "M" + edgeDockers[0].bounds.center().x + " " 
					+  edgeDockers[0].bounds.center().y;
		
		for(i=1; i<length; i++) {
			var dockerPoint = edgeDockers[i].bounds.center();
			path = path + " L" + dockerPoint.x + " " +  dockerPoint.y;
		}
		
		return path;
	}
	
});

 
ORYX.Plugins.HighlightingSelectedShapes = Clazz.extend({

	construct: function(facade) {
		this.facade = facade;
		this.opacityFull = 0.9;
		this.opacityLow = 0.4;

		// Register on Dragging-Events for show/hide of ShapeMenu
		//this.facade.registerOnEvent(ORYX.CONFIG.EVENT_DRAGDROP_START, this.hide.bind(this));
		//this.facade.registerOnEvent(ORYX.CONFIG.EVENT_DRAGDROP_END,  this.show.bind(this));		
	},

	/**
	 * On the Selection-Changed
	 *
	 */
	onSelectionChanged: function(event) {
		if(event.elements && event.elements.length > 1) {
			this.facade.raiseEvent({
										type:		ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW, 
										highlightId:'selection',
										elements:	event.elements.without(event.subSelection),
										color:		ORYX.CONFIG.SELECTION_HIGHLIGHT_COLOR,
										opacity: 	!event.subSelection ? this.opacityFull : this.opacityLow
									});

			if(event.subSelection){
				this.facade.raiseEvent({
											type:		ORYX.CONFIG.EVENT_HIGHLIGHT_SHOW, 
											highlightId:'subselection',
											elements:	[event.subSelection],
											color:		ORYX.CONFIG.SELECTION_HIGHLIGHT_COLOR,
											opacity: 	this.opacityFull
										});	
			} else {
				this.facade.raiseEvent({type:ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE, highlightId:'subselection'});				
			}						
			
		} else {
			this.facade.raiseEvent({type:ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE, highlightId:'selection'});
			this.facade.raiseEvent({type:ORYX.CONFIG.EVENT_HIGHLIGHT_HIDE, highlightId:'subselection'});
		}		
	}
});/**
 * Copyright (c) 2008
 * Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 * 
 * HOW to USE the OVERLAY PLUGIN:
 * 	You can use it via the event mechanism from the editor
 * 	by using facade.raiseEvent( <option> )
 * 
 * 	As an example please have a look in the overlayexample.js
 * 
 * 	The option object should/have to have following attributes:
 * 
 * 	Key				Value-Type							Description
 * 	================================================================
 * 
 *	type 			ORYX.CONFIG.EVENT_OVERLAY_SHOW | ORYX.CONFIG.EVENT_OVERLAY_HIDE		This is the type of the event	
 *	id				<String>							You have to use an unified id for later on hiding this overlay
 *	shapes 			<ORYX.Core.Shape[]>					The Shapes where the attributes should be changed
 *	attributes 		<Object>							An object with svg-style attributes as key-value pair
 *	node			<SVGElement>						An SVG-Element could be specified for adding this to the Shape
 *	nodePosition	"N"|"NE"|"E"|"SE"|"S"|"SW"|"W"|"NW"|"START"|"END"	The position for the SVG-Element relative to the 
 *														specified Shape. "START" and "END" are just using for a Edges, then
 *														the relation is the start or ending Docker of this edge.
 *	
 * 
 **/
if (!ORYX.Plugins) 
    ORYX.Plugins = new Object();

ORYX.Plugins.Overlay = Clazz.extend({

    facade: undefined,
	
	styleNode: undefined,
    
    construct: function(facade){
		
        this.facade = facade;

		this.changes = [];

		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_OVERLAY_SHOW, this.show.bind(this));
		this.facade.registerOnEvent(ORYX.CONFIG.EVENT_OVERLAY_HIDE, this.hide.bind(this));	

		this.styleNode = document.createElement('style')
		this.styleNode.setAttributeNS(null, 'type', 'text/css')
		
		document.getElementsByTagName('head')[0].appendChild( this.styleNode )

    },
	
	/**
	 * Show the overlay for specific nodes
	 * @param {Object} options
	 * 
	 * 	String				options.id		- MUST - Define the id of the overlay (is needed for the hiding of this overlay)		
	 *	ORYX.Core.Shape[] 	options.shapes 	- MUST - Define the Shapes for the changes
	 * 	attr-name:value		options.changes	- Defines all the changes which should be shown
	 * 
	 * 
	 */
	show: function( options ){
		
		// Checks if all arguments are available
		if( 	!options || 
				!options.shapes || !options.shapes instanceof Array ||
				!options.id	|| !options.id instanceof String || options.id.length == 0) { 
				
					return
					
		}
		
		//if( this.changes[options.id]){
		//	this.hide( options )
		//}
			

		// Checked if attributes are setted
		if( options.attributes ){
			
			// FOR EACH - Shape
			options.shapes.each(function(el){
				
				// Checks if the node is a Shape
				if( !el instanceof ORYX.Core.Shape){ return }
				
				this.setAttributes( el.node , options.attributes )
				
			}.bind(this))

		}	
		
		var isSVG = true
		try {
			isSVG = options.node && options.node instanceof SVGElement;
		} catch(e){}
		
		// Checks if node is setted and if this is an SVGElement		
		if ( options.node && isSVG) {
			
			options["_temps"] = []
						
			// FOR EACH - Node
			options.shapes.each(function(el, index){
				
				// Checks if the node is a Shape
				if( !el instanceof ORYX.Core.Shape){ return }
				
				var _temp = {}
				_temp.svg = options.dontCloneNode ? options.node : options.node.cloneNode( true );
				
				// Add the svg node to the ORYX-Shape
				el.node.firstChild.appendChild( _temp.svg )		
				
				// If
				if (el instanceof ORYX.Core.Edge && !options.nodePosition) {
					options['nodePosition'] = "START"
				}
						
				// If the node position is setted, it has to be transformed
				if( options.nodePosition ){
					
					var b = el.bounds;
					var p = options.nodePosition.toUpperCase();
					
					// Check the values of START and END
					if( el instanceof ORYX.Core.Node && p == "START"){
						p = "NW";
					} else if(el instanceof ORYX.Core.Node && p == "END"){
						p = "SE";
					} else if(el instanceof ORYX.Core.Edge && p == "START"){
						b = el.getDockers().first().bounds
					} else if(el instanceof ORYX.Core.Edge && p == "END"){
						b = el.getDockers().last().bounds
					}

					// Create a callback for the changing the position 
					// depending on the position string
					_temp.callback = function(){
						
						var x = 0; var y = 0;
						
						if( p == "NW" ){
							// Do Nothing
						} else if( p == "N" ) {
							x = b.width() / 2;
						} else if( p == "NE" ) {
							x = b.width();
						} else if( p == "E" ) {
							x = b.width(); y = b.height() / 2;
						} else if( p == "SE" ) {
							x = b.width(); y = b.height();
						} else if( p == "S" ) {
							x = b.width() / 2; y = b.height();
						} else if( p == "SW" ) {
							y = b.height();
						} else if( p == "W" ) {
							y = b.height() / 2;
						} else if( p == "START" || p == "END") {
							x = b.width() / 2; y = b.height() / 2;
						} else {
							return
						}
						
						if( el instanceof ORYX.Core.Edge){
							x  += b.upperLeft().x ; y  += b.upperLeft().y ;
						}
						
						_temp.svg.setAttributeNS(null, "transform", "translate(" + x + ", " + y + ")")
					
					}.bind(this)
					
					_temp.element = el;
					_temp.callback();
					
					b.registerCallback( _temp.callback );
					
				}
				
				
				options._temps.push( _temp )	
				
			}.bind(this))
			
			
			
		}		
	

		// Store the changes
		if( !this.changes[options.id] ){
			this.changes[options.id] = [];
		}
		
		this.changes[options.id].push( options );
				
	},
	
	/**
	 * Hide the overlay with the spefic id
	 * @param {Object} options
	 */
	hide: function( options ){
		
		// Checks if all arguments are available
		if( 	!options || 
				!options.id	|| !options.id instanceof String || options.id.length == 0 ||
				!this.changes[options.id]) { 
				
					return
					
		}		
		
		
		// Delete all added attributes
		// FOR EACH - Shape
		this.changes[options.id].each(function(option){
			
			option.shapes.each(function(el, index){
				
				// Checks if the node is a Shape
				if( !el instanceof ORYX.Core.Shape){ return }
				
				this.deleteAttributes( el.node )
							
			}.bind(this));

	
			if( option._temps ){
				
				option._temps.each(function(tmp){
					// Delete the added Node, if there is one
					if( tmp.svg && tmp.svg.parentNode ){
						tmp.svg.parentNode.removeChild( tmp.svg )
					}
		
					// If 
					if( tmp.callback && tmp.element){
						// It has to be unregistered from the edge
						tmp.element.bounds.unregisterCallback( tmp.callback )
					}
							
				}.bind(this))
				
			}
		
			
		}.bind(this));

		
		this.changes[options.id] = null;
		
		
	},
	
	
	/**
	 * Set the given css attributes to that node
	 * @param {HTMLElement} node
	 * @param {Object} attributes
	 */
	setAttributes: function( node, attributes ) {
		
		
		// Get all the childs from ME
		var childs = this.getAllChilds( node.firstChild.firstChild )
		
		var ids = []
		
		// Add all Attributes which have relation to another node in this document and concate the pure id out of it
		// This is for example important for the markers of a edge
		childs.each(function(e){ ids.push( $A(e.attributes).findAll(function(attr){ return attr.nodeValue.startsWith('url(#')}) )})
		ids = ids.flatten().compact();
		ids = ids.collect(function(s){return s.nodeValue}).uniq();
		ids = ids.collect(function(s){return s.slice(5, s.length-1)})
		
		// Add the node ID to the id
		ids.unshift( node.id + ' .me')
		
		var attr				= $H(attributes);
        var attrValue			= attr.toJSON().gsub(',', ';').gsub('"', '');
        var attrMarkerValue		= attributes.stroke ? attrValue.slice(0, attrValue.length-1) + "; fill:" + attributes.stroke + ";}" : attrValue;
        var attrTextValue;
        if( attributes.fill ){
            var copyAttr        = Object.clone(attributes);
        	copyAttr.fill		= "black";
        	attrTextValue		= $H(copyAttr).toJSON().gsub(',', ';').gsub('"', '');
        }
                	
        // Create the CSS-Tags Style out of the ids and the attributes
        csstags = ids.collect(function(s, i){return "#" + s + " * " + (!i? attrValue : attrMarkerValue) + "" + (attrTextValue ? " #" + s + " text * " + attrTextValue : "") })
		
		// Join all the tags
		var s = csstags.join(" ") + "\n" 
		
		// And add to the end of the style tag
		this.styleNode.appendChild(document.createTextNode(s));
		
		
	},
	
	/**
	 * Deletes all attributes which are
	 * added in a special style sheet for that node
	 * @param {HTMLElement} node 
	 */
	deleteAttributes: function( node ) {
				
		// Get all children which contains the node id		
		var delEl = $A(this.styleNode.childNodes)
					 .findAll(function(e){ return e.textContent.include( '#' + node.id ) });
		
		// Remove all of them
		delEl.each(function(el){
			el.parentNode.removeChild(el);
		});		
	},
	
	getAllChilds: function( node ){
		
		var childs = $A(node.childNodes)
		
		$A(node.childNodes).each(function( e ){ 
		        childs.push( this.getAllChilds( e ) )
		}.bind(this))

    	return childs.flatten();
	}

    
});
/**
 * Copyright (c) 2006
 * Martin Czuchra, Nicolas Peters, Daniel Polak, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/
if (!ORYX.Plugins) 
    ORYX.Plugins = new Object();

ORYX.Plugins.Edit = Clazz.extend({
    
    construct: function(facade){
    
        this.facade = facade;
        this.clipboard = new ORYX.Plugins.Edit.ClipBoard();
        
        //this.facade.registerOnEvent(ORYX.CONFIG.EVENT_KEYDOWN, this.keyHandler.bind(this));
        
        this.facade.offer({
         name: ORYX.I18N.Edit.cut,
         description: ORYX.I18N.Edit.cutDesc,
         icon: ORYX.PATH + "images/cut.png",
		 keyCodes: [{
				metaKeys: [ORYX.CONFIG.META_KEY_META_CTRL],
				keyCode: 88,
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN
			}
		 ],
         functionality: this.callEdit.bind(this, this.editCut),
         group: ORYX.I18N.Edit.group,
         index: 1,
         minShape: 1
         });
         
        this.facade.offer({
         name: ORYX.I18N.Edit.copy,
         description: ORYX.I18N.Edit.copyDesc,
         icon: ORYX.PATH + "images/page_copy.png",
		 keyCodes: [{
				metaKeys: [ORYX.CONFIG.META_KEY_META_CTRL],
				keyCode: 67,
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN
			}
		 ],
         functionality: this.callEdit.bind(this, this.editCopy, [true, false]),
         group: ORYX.I18N.Edit.group,
         index: 2,
         minShape: 1
         });
         
        this.facade.offer({
         name: ORYX.I18N.Edit.paste,
         description: ORYX.I18N.Edit.pasteDesc,
         icon: ORYX.PATH + "images/page_paste.png",
		 keyCodes: [{
				metaKeys: [ORYX.CONFIG.META_KEY_META_CTRL],
				keyCode: 86,
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN
			}
		 ],
         functionality: this.callEdit.bind(this, this.editPaste),
         isEnabled: this.clipboard.isOccupied.bind(this.clipboard),
         group: ORYX.I18N.Edit.group,
         index: 3,
         minShape: 0,
         maxShape: 0
         });
         
        this.facade.offer({
            name: ORYX.I18N.Edit.del,
            description: ORYX.I18N.Edit.delDesc,
            icon: ORYX.PATH + "images/cross.png",
			keyCodes: [{
					metaKeys: [ORYX.CONFIG.META_KEY_META_CTRL],
					keyCode: 8,
					keyAction: ORYX.CONFIG.KEY_ACTION_DOWN
				},
				{	
					keyCode: 46,
					keyAction: ORYX.CONFIG.KEY_ACTION_DOWN
				}
			],
            functionality: this.callEdit.bind(this, this.editDelete),
            group: ORYX.I18N.Edit.group,
            index: 4,
            minShape: 1
        });
    },
	
	callEdit: function(fn, args){
		window.setTimeout(function(){
			fn.apply(this, (args instanceof Array ? args : []));
		}.bind(this), 1);
	},
	
	/**
	 * Handles the mouse down event and starts the copy-move-paste action, if
	 * control or meta key is pressed.
	 */
	handleMouseDown: function(event) {
		if(this._controlPressed) {
			this._controlPressed = false;
			this.editCopy();
//			console.log("copiedEle: %0",this.clipboard.shapesAsJson)
//			console.log("mousevent: %o",event)
			this.editPaste();
			event.forceExecution = true;
			this.facade.raiseEvent(event, this.clipboard.shapesAsJson);
			
		}
	},
    
    /**
     * The key handler for this plugin. Every action from the set of cut, copy,
     * paste and delete should be accessible trough simple keyboard shortcuts.
     * This method checks whether any event triggers one of those actions.
     *
     * @param {Object} event The keyboard event that should be analysed for
     *     triggering of this plugin.
     */
//    keyHandler: function(event){
//        //TODO document what event.which is.
//        
//        ORYX.Log.debug("edit.js handles a keyEvent.");
//        
//        // assure we have the current event.
//        if (!event) 
//            event = window.event;
//        
//        
//        // get the currently pressed key and state of control key.
//        var pressedKey = event.which || event.keyCode;
//        var ctrlPressed = event.ctrlKey;
//        
//        // if the object is to be deleted, do so, and return immediately.
//        if ((pressedKey == ORYX.CONFIG.KEY_CODE_DELETE) ||
//        ((pressedKey == ORYX.CONFIG.KEY_CODE_BACKSPACE) &&
//        (event.metaKey || event.appleMetaKey))) {
//        
//            ORYX.Log.debug("edit.js deletes the shape.");
//            this.editDelete();
//            return;
//        }
//        
//         // if control key is not pressed, we're not interested anymore.
//         if (!ctrlPressed)
//         return;
//         
//         // when ctrl is pressed, switch trough the possibilities.
//         switch (pressedKey) {
//         
//	         // cut.
//	         case ORYX.CONFIG.KEY_CODE_X:
//	         this.editCut();
//	         break;
//	         
//	         // copy.
//	         case ORYX.CONFIG.KEY_CODE_C:
//	         this.editCopy();
//	         break;
//	         
//	         // paste.
//	         case ORYX.CONFIG.KEY_CODE_V:
//	         this.editPaste();
//	         break;
//         }
//    },
	
    /**
     * Returns a list of shapes which should be considered while copying.
     * Besides the shapes of given ones, edges and attached nodes are added to the result set.
     * If one of the given shape is a child of another given shape, it is not put into the result. 
     */
    getAllShapesToConsider: function(shapes){
        var shapesToConsider = []; // only top-level shapes
        var childShapesToConsider = []; // all child shapes of top-level shapes
        
        shapes.each(function(shape){
            //Throw away these shapes which have a parent in given shapes
            isChildShapeOfAnother = shapes.any(function(s2){
                return s2.hasChildShape(shape);
            });
            if(isChildShapeOfAnother) return;
            
            // This shape should be considered
            shapesToConsider.push(shape);
            // Consider attached nodes (e.g. intermediate events)
            if (shape instanceof ORYX.Core.Node) {
				var attached = shape.getOutgoingNodes();
				attached = attached.findAll(function(a){ return !shapes.include(a) });
                shapesToConsider = shapesToConsider.concat(attached);
            }
            
            childShapesToConsider = childShapesToConsider.concat(shape.getChildShapes(true));
        }.bind(this));
        
        // All edges between considered child shapes should be considered
        // Look for these edges having incoming and outgoing in childShapesToConsider
        var edgesToConsider = this.facade.getCanvas().getChildEdges().select(function(edge){
            // Ignore if already added
            if(shapesToConsider.include(edge)) return false;
            // Ignore if there are no docked shapes
            if(edge.getAllDockedShapes().size() === 0) return false; 
            // True if all docked shapes are in considered child shapes
            return edge.getAllDockedShapes().all(function(shape){
                // Remember: Edges can have other edges on outgoing, that is why edges must not be included in childShapesToConsider
                return shape instanceof ORYX.Core.Edge || childShapesToConsider.include(shape);
            });
        });
        shapesToConsider = shapesToConsider.concat(edgesToConsider);
        
        return shapesToConsider;
    },
    
    /**
     * Performs the cut operation by first copy-ing and then deleting the
     * current selection.
     */
    editCut: function(){
        //TODO document why this returns false.
        //TODO document what the magic boolean parameters are supposed to do.
        
        this.editCopy(false, true);
        this.editDelete(true);
        return false;
    },
    
    /**
     * Performs the copy operation.
     * @param {Object} will_not_update ??
     */
    editCopy: function( will_update, useNoOffset ){
        var selection = this.facade.getSelection();
        
        //if the selection is empty, do not remove the previously copied elements
        if(selection.length == 0) return;
        
        this.clipboard.refresh(selection, this.getAllShapesToConsider(selection), this.facade.getCanvas().getStencil().stencilSet().namespace(), useNoOffset);

        if( will_update ) this.facade.updateSelection();
    },
    
    /**
     * Performs the paste operation.
     */
    editPaste: function(){
        // Create a new canvas with childShapes 
		//and stencilset namespace to be JSON Import conform
		var canvas = {
            childShapes: this.clipboard.shapesAsJson,
			stencilset:{
				namespace:this.clipboard.SSnamespace
			}
        }
        // Apply json helper to iterate over json object
        Ext.apply(canvas, ORYX.Core.AbstractShape.JSONHelper);
        
        var childShapeResourceIds =  canvas.getChildShapes(true).pluck("resourceId");
        var outgoings = {};
        // Iterate over all shapes
        canvas.eachChild(function(shape, parent){
            // Throw away these references where referenced shape isn't copied
            shape.outgoing = shape.outgoing.select(function(out){
                return childShapeResourceIds.include(out.resourceId);
            });
			shape.outgoing.each(function(out){
				if (!outgoings[out.resourceId]){ outgoings[out.resourceId] = [] }
				outgoings[out.resourceId].push(shape)
			});
			
            return shape;
        }.bind(this), true, true);
        

        // Iterate over all shapes
        canvas.eachChild(function(shape, parent){
            
        	// Check if there has a valid target
            if(shape.target && !(childShapeResourceIds.include(shape.target.resourceId))){
                shape.target = undefined;
                shape.targetRemoved = true;
            }
    		
    		// Check if the first docker is removed
    		if(	shape.dockers && 
    			shape.dockers.length >= 1 && 
    			shape.dockers[0].getDocker &&
    			((shape.dockers[0].getDocker().getDockedShape() &&
    			!childShapeResourceIds.include(shape.dockers[0].getDocker().getDockedShape().resourceId)) || 
    			!shape.getShape().dockers[0].getDockedShape()&&!outgoings[shape.resourceId])) {
    				
    			shape.sourceRemoved = true;
    		}
			
            return shape;
        }.bind(this), true, true);

		
        // Iterate over top-level shapes
        canvas.eachChild(function(shape, parent){
            // All top-level shapes should get an offset in their bounds
            // Move the shape occording to COPY_MOVE_OFFSET
        	if (this.clipboard.useOffset) {
	            shape.bounds = {
	                lowerRight: {
	                    x: shape.bounds.lowerRight.x + ORYX.CONFIG.COPY_MOVE_OFFSET,
	                    y: shape.bounds.lowerRight.y + ORYX.CONFIG.COPY_MOVE_OFFSET
	                },
	                upperLeft: {
	                    x: shape.bounds.upperLeft.x + ORYX.CONFIG.COPY_MOVE_OFFSET,
	                    y: shape.bounds.upperLeft.y + ORYX.CONFIG.COPY_MOVE_OFFSET
	                }
	            };
        	}
            // Only apply offset to shapes with a target
            if (shape.dockers){
                shape.dockers = shape.dockers.map(function(docker, i){
                    // If shape had a target but the copied does not have anyone anymore,
                    // migrate the relative dockers to absolute ones.
                    if( (shape.targetRemoved === true && i == shape.dockers.length - 1&&docker.getDocker) ||
						(shape.sourceRemoved === true && i == 0&&docker.getDocker)){

                        docker = docker.getDocker().bounds.center();
                    }

					// If it is the first docker and it has a docked shape, 
					// just return the coordinates
				   	if ((i == 0 && docker.getDocker instanceof Function && 
				   		shape.sourceRemoved !== true && (docker.getDocker().getDockedShape() || ((outgoings[shape.resourceId]||[]).length > 0 && (!(shape.getShape() instanceof ORYX.Core.Node) || outgoings[shape.resourceId][0].getShape() instanceof ORYX.Core.Node)))) || 
						(i == shape.dockers.length - 1 && docker.getDocker instanceof Function && 
						shape.targetRemoved !== true && (docker.getDocker().getDockedShape() || shape.target))){
							
						return {
                        	x: docker.x, 
                        	y: docker.y,
                        	getDocker: docker.getDocker
						}
					} else if (this.clipboard.useOffset) {
	                    return {
		                        x: docker.x + ORYX.CONFIG.COPY_MOVE_OFFSET, 
		                        y: docker.y + ORYX.CONFIG.COPY_MOVE_OFFSET,
	                        	getDocker: docker.getDocker
		                    };
				   	} else {
				   		return {
                        	x: docker.x, 
                        	y: docker.y,
                        	getDocker: docker.getDocker
						};
				   	}
                }.bind(this));

            } else if (shape.getShape() instanceof ORYX.Core.Node && shape.dockers && shape.dockers.length > 0 && (!shape.dockers.first().getDocker || shape.sourceRemoved === true || !(shape.dockers.first().getDocker().getDockedShape() || outgoings[shape.resourceId]))){
            	
            	shape.dockers = shape.dockers.map(function(docker, i){
            		
                    if((shape.sourceRemoved === true && i == 0&&docker.getDocker)){
                    	docker = docker.getDocker().bounds.center();
                    }
                    
                    if (this.clipboard.useOffset) {
	            		return {
	                        x: docker.x + ORYX.CONFIG.COPY_MOVE_OFFSET, 
	                        y: docker.y + ORYX.CONFIG.COPY_MOVE_OFFSET,
	                    	getDocker: docker.getDocker
	                    };
                    } else {
	            		return {
	                        x: docker.x, 
	                        y: docker.y,
	                    	getDocker: docker.getDocker
	                    };
                    }
            	}.bind(this));
            }
            
            return shape;
        }.bind(this), false, true);

        this.clipboard.useOffset = true;
        this.facade.importJSON(canvas);
    },
    
    /**
     * Performs the delete operation. No more asking.
     */
    editDelete: function(){
        var selection = this.facade.getSelection();
        
        var clipboard = new ORYX.Plugins.Edit.ClipBoard();
        clipboard.refresh(selection, this.getAllShapesToConsider(selection));
        
		var command = new ORYX.Plugins.Edit.DeleteCommand(clipboard , this.facade);
                                       
		this.facade.executeCommands([command]);
    }
}); 

ORYX.Plugins.Edit.ClipBoard = Clazz.extend({
    construct: function(){
        this.shapesAsJson = [];
        this.selection = [];
		this.SSnamespace="";
		this.useOffset=true;
    },
    isOccupied: function(){
        return this.shapesAsJson.length > 0;
    },
    refresh: function(selection, shapes, namespace, useNoOffset){
        this.selection = selection;
        this.SSnamespace=namespace;
        // Store outgoings, targets and parents to restore them later on
        this.outgoings = {};
        this.parents = {};
        this.targets = {};
        this.useOffset = useNoOffset !== true;
        
        this.shapesAsJson = shapes.map(function(shape){
            var s = shape.toJSON();
            s.parent = {resourceId : shape.getParentShape().resourceId};
            s.parentIndex = shape.getParentShape().getChildShapes().indexOf(shape)
            return s;
        });
    }
});

ORYX.Plugins.Edit.DeleteCommand = ORYX.Core.Command.extend({
    construct: function(clipboard, facade){
        this.clipboard          = clipboard;
        this.shapesAsJson       = clipboard.shapesAsJson;
        this.facade             = facade;
        
        // Store dockers of deleted shapes to restore connections
        this.dockers            = this.shapesAsJson.map(function(shapeAsJson){
            var shape = shapeAsJson.getShape();
            var incomingDockers = shape.getIncomingShapes().map(function(s){return s.getDockers().last()})
            var outgoingDockers = shape.getOutgoingShapes().map(function(s){return s.getDockers().first()})
            var dockers = shape.getDockers().concat(incomingDockers, outgoingDockers).compact().map(function(docker){
                return {
                    object: docker,
                    referencePoint: docker.referencePoint,
                    dockedShape: docker.getDockedShape()
                };
            });
            return dockers;
        }).flatten();
    },          
    execute: function(){
        this.shapesAsJson.each(function(shapeAsJson){
            // Delete shape
            this.facade.deleteShape(shapeAsJson.getShape());
        }.bind(this));
        
        this.facade.setSelection([]);
        this.facade.getCanvas().update();		
		this.facade.updateSelection();
        
    },
    rollback: function(){
        this.shapesAsJson.each(function(shapeAsJson) {
            var shape = shapeAsJson.getShape();
            var parent = this.facade.getCanvas().getChildShapeByResourceId(shapeAsJson.parent.resourceId) || this.facade.getCanvas();
            parent.add(shape, shape.parentIndex);
        }.bind(this));
        
        //reconnect shapes
        this.dockers.each(function(d) {
            d.object.setDockedShape(d.dockedShape);
            d.object.setReferencePoint(d.referencePoint);
        }.bind(this));
        
        this.facade.setSelection(this.selectedShapes);
        this.facade.getCanvas().update();	
		this.facade.updateSelection();
        
    }
});/**
 * Copyright (c) 2009
 * Jan-Felix Schwarz
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/
if (!ORYX.Plugins) 
    ORYX.Plugins = new Object();

ORYX.Plugins.KeysMove = ORYX.Plugins.AbstractPlugin.extend({

    facade: undefined,
    
    construct: function(facade){
    
        this.facade = facade;
        this.copyElements = [];
        
        //this.facade.registerOnEvent(ORYX.CONFIG.EVENT_KEYDOWN, this.keyHandler.bind(this));

		// SELECT ALL
		this.facade.offer({
		keyCodes: [{
		 		metaKeys: [ORYX.CONFIG.META_KEY_META_CTRL],
				keyCode: 65,
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN 
			}
		 ],
         functionality: this.selectAll.bind(this)
         });
		 
		// MOVE LEFT SMALL		
		this.facade.offer({
		keyCodes: [{
		 		metaKeys: [ORYX.CONFIG.META_KEY_META_CTRL],
				keyCode: ORYX.CONFIG.KEY_CODE_LEFT,
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN 
			}
		 ],
         functionality: this.move.bind(this, ORYX.CONFIG.KEY_CODE_LEFT, false)
         });
		 
		 // MOVE LEFT
		 this.facade.offer({
		 keyCodes: [{
				keyCode: ORYX.CONFIG.KEY_CODE_LEFT,
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN 
			}
		 ],
         functionality: this.move.bind(this, ORYX.CONFIG.KEY_CODE_LEFT, true)
         });
		 
		// MOVE RIGHT SMALL	
		 this.facade.offer({
		 keyCodes: [{
		 		metaKeys: [ORYX.CONFIG.META_KEY_META_CTRL],
				keyCode: ORYX.CONFIG.KEY_CODE_RIGHT,
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN 
			}
		 ],
         functionality: this.move.bind(this, ORYX.CONFIG.KEY_CODE_RIGHT, false)
         });
		 
		// MOVE RIGHT	
		 this.facade.offer({
		 keyCodes: [{
				keyCode: ORYX.CONFIG.KEY_CODE_RIGHT,
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN 
			}
		 ],
         functionality: this.move.bind(this, ORYX.CONFIG.KEY_CODE_RIGHT, true)
         });
		 
		// MOVE UP SMALL	
		 this.facade.offer({
		 keyCodes: [{
		 		metaKeys: [ORYX.CONFIG.META_KEY_META_CTRL],
				keyCode: ORYX.CONFIG.KEY_CODE_UP,
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN 
			}
		 ],
         functionality: this.move.bind(this, ORYX.CONFIG.KEY_CODE_UP, false)
         });
		 
		// MOVE UP	
		 this.facade.offer({
		 keyCodes: [{
				keyCode: ORYX.CONFIG.KEY_CODE_UP,
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN 
			}
		 ],
         functionality: this.move.bind(this, ORYX.CONFIG.KEY_CODE_UP, true)
         });
		 
		// MOVE DOWN SMALL	
		 this.facade.offer({
		 keyCodes: [{
		 		metaKeys: [ORYX.CONFIG.META_KEY_META_CTRL],
				keyCode: ORYX.CONFIG.KEY_CODE_DOWN,
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN 
			}
		 ],
         functionality: this.move.bind(this, ORYX.CONFIG.KEY_CODE_DOWN, false)
         });
		 
		// MOVE DOWN	
		 this.facade.offer({
		 keyCodes: [{
				keyCode: ORYX.CONFIG.KEY_CODE_DOWN,
				keyAction: ORYX.CONFIG.KEY_ACTION_DOWN 
			}
		 ],
         functionality: this.move.bind(this, ORYX.CONFIG.KEY_CODE_DOWN, true)
         });
		 
         
    },
    
	/**
	 * Select all shapes in the editor
	 *
	 */
	selectAll: function(e){
    	Event.stop(e.event);
		this.facade.setSelection(this.facade.getCanvas().getChildShapes(true))
	},
	
	move: function(key, far, e) {
		
    	Event.stop(e.event);

		// calculate the distance to move the objects and get the selection.
		var distance = far? 20 : 5;
		var selection = this.facade.getSelection();
		var currentSelection = this.facade.getSelection();
		var p = {x: 0, y: 0};
		
		// switch on the key pressed and populate the point to move by.
		switch(key) {

			case ORYX.CONFIG.KEY_CODE_LEFT:
				p.x = -1*distance;
				break;
			case ORYX.CONFIG.KEY_CODE_RIGHT:
				p.x = distance;
				break;
			case ORYX.CONFIG.KEY_CODE_UP:
				p.y = -1*distance;
				break;
			case ORYX.CONFIG.KEY_CODE_DOWN:
				p.y = distance;
				break;
		}
		
		// move each shape in the selection by the point calculated and update it.
		selection = selection.findAll(function(shape){ 
			// Check if this shape is docked to an shape in the selection			
			if(shape instanceof ORYX.Core.Node && shape.dockers.length == 1 && selection.include( shape.dockers.first().getDockedShape() )){ 
				return false 
			} 
			
			// Check if any of the parent shape is included in the selection
			var s = shape.parent; 
			do{ 
				if(selection.include(s)){ 
					return false
				}
			}while(s = s.parent); 
			
			// Otherwise, return true
			return true;
			
		});
		
		/* Edges must not be movable, if only edges are selected and at least 
		 * one of them is docked.
		 */
		var edgesMovable = true;
		var onlyEdgesSelected = selection.all(function(shape) {
			if(shape instanceof ORYX.Core.Edge) {
				if(shape.isDocked()) {
					edgesMovable = false;
				}
				return true;	
			}
			return false;
		});
		
		if(onlyEdgesSelected && !edgesMovable) {
			/* Abort moving shapes */
			return;
		}
		
		selection = selection.map(function(shape){ 
			if( shape instanceof ORYX.Core.Node ){
				/*if( shape.dockers.length == 1 ){
					return shape.dockers.first()
				} else {*/
					return shape
				//}
			} else if( shape instanceof ORYX.Core.Edge ) {
				
				var dockers = shape.dockers;
				
				if( selection.include( shape.dockers.first().getDockedShape() ) ){
					dockers = dockers.without( shape.dockers.first() )
				}

				if( selection.include( shape.dockers.last().getDockedShape() ) ){
					dockers = dockers.without( shape.dockers.last() )
				}
				
				return dockers	
							
			} else {
				return null
			}
		
		}).flatten().compact();
		
		if (selection.size() > 0) {
			
			//Stop moving at canvas borders
			var selectionBounds = [ this.facade.getCanvas().bounds.lowerRight().x,
			                        this.facade.getCanvas().bounds.lowerRight().y,
			                        0,
			                        0 ];
			selection.each(function(s) {
				selectionBounds[0] = Math.min(selectionBounds[0], s.bounds.upperLeft().x);
				selectionBounds[1] = Math.min(selectionBounds[1], s.bounds.upperLeft().y);
				selectionBounds[2] = Math.max(selectionBounds[2], s.bounds.lowerRight().x);
				selectionBounds[3] = Math.max(selectionBounds[3], s.bounds.lowerRight().y);
			});
			if(selectionBounds[0]+p.x < 0)
				p.x = -selectionBounds[0];
			if(selectionBounds[1]+p.y < 0)
				p.y = -selectionBounds[1];
			if(selectionBounds[2]+p.x > this.facade.getCanvas().bounds.lowerRight().x)
				p.x = this.facade.getCanvas().bounds.lowerRight().x - selectionBounds[2];
			if(selectionBounds[3]+p.y > this.facade.getCanvas().bounds.lowerRight().y)
				p.y = this.facade.getCanvas().bounds.lowerRight().y - selectionBounds[3];
			
			if(p.x!=0 || p.y!=0) {
				// Instantiate the moveCommand
				var commands = [new ORYX.Core.Command.Move(selection, p, null, currentSelection, this)];
				// Execute the commands			
				this.facade.executeCommands(commands);
			}
			
		}
	},
	
	getUndockedCommant: function(shapes){

		var undockEdgeCommand = ORYX.Core.Command.extend({
			construct: function(moveShapes){
				this.dockers = moveShapes.collect(function(shape){ return shape instanceof ORYX.Core.Controls.Docker ? {docker:shape, dockedShape:shape.getDockedShape(), refPoint:shape.referencePoint} : undefined }).compact();
			},			
			execute: function(){
				this.dockers.each(function(el){
					el.docker.setDockedShape(undefined);
				})
			},
			rollback: function(){
				this.dockers.each(function(el){
					el.docker.setDockedShape(el.dockedShape);
					el.docker.setReferencePoint(el.refPoint);
					//el.docker.update();
				})
			}
		});
		
		command = new undockEdgeCommand( shapes );
		command.execute();	
		return command;
	},
	
//    /**
//     * The key handler for this plugin. Every action from the set of cut, copy,
//     * paste and delete should be accessible trough simple keyboard shortcuts.
//     * This method checks whether any event triggers one of those actions.
//     *
//     * @param {Object} event The keyboard event that should be analysed for
//     *     triggering of this plugin.
//     */
//    keyHandler: function(event){
//        //TODO document what event.which is.
//        
//        ORYX.Log.debug("keysMove.js handles a keyEvent.");
//        
//        // assure we have the current event.
//        if (!event) 
//            event = window.event;
//        
//        // get the currently pressed key and state of control key.
//        var pressedKey = event.which || event.keyCode;
//        var ctrlPressed = event.ctrlKey;
//
//		// if the key is one of the arrow keys, forward to move and return.
//		if ([ORYX.CONFIG.KEY_CODE_LEFT, ORYX.CONFIG.KEY_CODE_RIGHT,
//			ORYX.CONFIG.KEY_CODE_UP, ORYX.CONFIG.KEY_CODE_DOWN].include(pressedKey)) {
//			
//			this.move(pressedKey, !ctrlPressed);
//			return;
//		}
//		
//    }
	
});
/**
 * Copyright (c) 2009
 * Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if(!ORYX.Plugins) { ORYX.Plugins = {} }
if(!ORYX.Plugins.Layouter) { ORYX.Plugins.Layouter = {} }

new function(){
	
	/**
	 * Edge layouter is an implementation to layout an edge
	 * @class ORYX.Plugins.Layouter.EdgeLayouter
	 * @author Willi Tscheschner
	 */
	ORYX.Plugins.Layouter.EdgeLayouter = ORYX.Plugins.AbstractLayouter.extend({
		
		/**
		 * Layout only Edges
		 */
		layouted : [	"http://b3mn.org/stencilset/bpmn1.1#SequenceFlow", 
						"http://b3mn.org/stencilset/bpmn1.1#MessageFlow",
						"http://b3mn.org/stencilset/timjpdl3#SequenceFlow", 
						"http://b3mn.org/stencilset/jbpm4#SequenceFlow", 
						"http://b3mn.org/stencilset/bpmn2.0#MessageFlow",
						"http://b3mn.org/stencilset/bpmn2.0#SequenceFlow", 
						"http://b3mn.org/stencilset/bpmn2.0choreography#MessageFlow",
						"http://b3mn.org/stencilset/bpmn2.0choreography#SequenceFlow", 
						"http://b3mn.org/stencilset/bpmn2.0conversation#ConversationLink",
						"http://b3mn.org/stencilset/epc#ControlFlow",
						"http://www.signavio.com/stencilsets/processmap#ProcessLink",
						"http://www.signavio.com/stencilsets/organigram#connection"],
		
		/**
		 * Layout a set on edges
		 * @param {Object} edges
		 */
		layout: function(edges){
			edges.each(function(edge){
				this.doLayout(edge)
			}.bind(this))
		},
		
		/**
		 * Layout one edge
		 * @param {Object} edge
		 */
		doLayout: function(edge){
			// Get from and to node
			var from 	= edge.getIncomingNodes()[0]; 
			var to 		= edge.getOutgoingNodes()[0];
			
			// Return if one is null
			if (!from || !to) { return }
			
			var positions = this.getPositions(from, to, edge);
		
			if (positions.length > 0){
				this.setDockers(edge, positions[0].a, positions[0].b);
			}
				
		},
		
		/**
		 * Returns a set on positions which are not containt either 
		 * in the bounds in from or to.
		 * @param {Object} from Shape where the edge is come from
		 * @param {Object} to Shape where the edge is leading to
		 * @param {Object} edge Edge between from and to
		 */
		getPositions : function(from, to, edge){
			
			// Get absolute bounds
			var ab = from.absoluteBounds();
			var bb = to.absoluteBounds();
			
			// Get center from and to
			var a = ab.center();
			var b = bb.center();
			
			var am = ab.midPoint();
			var bm = bb.midPoint();
		
			// Get first and last reference point
			var first = Object.clone(edge.dockers.first().referencePoint);
			var last = Object.clone(edge.dockers.last().referencePoint);
			// Get the absolute one
			var aFirst = edge.dockers.first().getAbsoluteReferencePoint();
			var aLast = edge.dockers.last().getAbsoluteReferencePoint(); 
			
			// IF ------>
			// or  |
			//     V
			// Do nothing
			if (Math.abs(aFirst.x-aLast.x) < 1 || Math.abs(aFirst.y-aLast.y) < 1) {
				return []
			}
			
			// Calc center position, between a and b
			// depending on there weight
			var m = {}
			m.x = a.x < b.x ? 
					(((b.x - bb.width()/2) - (a.x + ab.width()/2))/2) + (a.x + ab.width()/2): 
					(((a.x - ab.width()/2) - (b.x + bb.width()/2))/2) + (b.x + bb.width()/2);

			m.y = a.y < b.y ? 
					(((b.y - bb.height()/2) - (a.y + ab.height()/2))/2) + (a.y + ab.height()/2): 
					(((a.y - ab.height()/2) - (b.y + bb.height()/2))/2) + (b.y + bb.height()/2);
								
								
			// Enlarge both bounds with 10
			ab.widen(5); // Wide the from less than 
			bb.widen(20);// the to because of the arrow from the edge
								
			var positions = [];
			var off = this.getOffset.bind(this);
			
			// Checks ----+
			//            |
			//            V
			if (!ab.isIncluded(b.x, a.y)&&!bb.isIncluded(b.x, a.y)) {
				positions.push({
					a : {x:b.x+off(last,bm,"x"),y:a.y+off(first,am,"y")},
					z : this.getWeight(from, a.x < b.x ? "r" : "l", to, a.y < b.y ? "t" : "b", edge)
				});
			}
						
			// Checks | 
			//        +--->
			if (!ab.isIncluded(a.x, b.y)&&!bb.isIncluded(a.x, b.y)) {
				positions.push({
					a : {x:a.x+off(first,am,"x"),y:b.y+off(last,bm,"y")},
					z : this.getWeight(from, a.y < b.y ? "b" : "t", to, a.x < b.x ? "l" : "r", edge)
				});
			}
						
			// Checks  --+
			//           |
			//           +--->
			if (!ab.isIncluded(m.x, a.y)&&!bb.isIncluded(m.x, b.y)) {
				positions.push({
					a : {x:m.x,y:a.y+off(first,am,"y")},
					b : {x:m.x,y:b.y+off(last,bm,"y")},
					z : this.getWeight(from, "r", to, "l", edge, a.x > b.x)
				});
			}
			
			// Checks | 
			//        +---+
			//            |
			//            V
			if (!ab.isIncluded(a.x, m.y)&&!bb.isIncluded(b.x, m.y)) {
				positions.push({
					a : {x:a.x+off(first,am,"x"),y:m.y},
					b : {x:b.x+off(last,bm,"x"),y:m.y},
					z : this.getWeight(from, "b", to, "t", edge, a.y > b.y)
				});
			}	
			
			// Sort DESC of weights
			return positions.sort(function(a,b){ return a.z < b.z ? 1 : (a.z == b.z ? -1 : -1)});
		},
		
		/**
		 * Returns a offset for the pos to the center of the bounds
		 * 
		 * @param {Object} val
		 * @param {Object} pos2
		 * @param {String} dir Direction x|y
		 */
		getOffset: function(pos, pos2, dir){
			return pos[dir] - pos2[dir];
		},
		
		/**
		 * Returns a value which shows the weight for this configuration
		 * 
		 * @param {Object} from Shape which is coming from
		 * @param {String} d1 Direction where is goes
		 * @param {Object} to Shape which goes to
		 * @param {String} d2 Direction where it comes to
		 * @param {Object} edge Edge between from and to
		 * @param {Boolean} reverse Reverse the direction (e.g. "r" -> "l")
		 */
		getWeight: function(from, d1, to, d2, edge, reverse){
			
			d1 = (d1||"").toLowerCase();
			d2 = (d2||"").toLowerCase();
			
			if (!["t","r","b","l"].include(d1)){ d1 = "r"}
			if (!["t","r","b","l"].include(d2)){ d1 = "l"}
			
			// If reverse is set
			if (reverse) {
				// Reverse d1 and d2
				d1 = d1=="t"?"b":(d1=="r"?"l":(d1=="b"?"t":(d1=="l"?"r":"r")))
				d2 = d2=="t"?"b":(d2=="r"?"l":(d2=="b"?"t":(d2=="l"?"r":"r")))
			}
			
					
			var weight = 0;
			// Get rules for from "out" and to "in"
			var dr1 = this.facade.getRules().getLayoutingRules(from, edge)["out"];
			var dr2 = this.facade.getRules().getLayoutingRules(to, edge)["in"];

			var fromWeight = dr1[d1];
			var toWeight = dr2[d2];


			/**
			 * Return a true if the center 1 is in the same direction than center 2
			 * @param {Object} direction
			 * @param {Object} center1
			 * @param {Object} center2
			 */
			var sameDirection = function(direction, center1, center2){
				switch(direction){
					case "t": return Math.abs(center1.x - center2.x) < 2 && center1.y < center2.y
					case "r": return center1.x > center2.x && Math.abs(center1.y - center2.y) < 2
					case "b": return Math.abs(center1.x - center2.x) < 2 && center1.y > center2.y
					case "l": return center1.x < center2.x && Math.abs(center1.y - center2.y) < 2
					default: return false;
				}
			}

			// Check if there are same incoming edges from 'from'
			var sameIncomingFrom = from
								.getIncomingShapes()
								.findAll(function(a){ return a instanceof ORYX.Core.Edge})
								.any(function(e){ 
									return sameDirection(d1, e.dockers[e.dockers.length-2].bounds.center(), e.dockers.last().bounds.center());
								});

			// Check if there are same outgoing edges from 'to'
			var sameOutgoingTo = to
								.getOutgoingShapes()
								.findAll(function(a){ return a instanceof ORYX.Core.Edge})
								.any(function(e){ 
									return sameDirection(d2, e.dockers[1].bounds.center(), e.dockers.first().bounds.center());
								});
			
			// If there are equivalent edges, set 0
			//fromWeight = sameIncomingFrom ? 0 : fromWeight;
			//toWeight = sameOutgoingTo ? 0 : toWeight;
			
			// Get the sum of "out" and the direction plus "in" and the direction 						
			return (sameIncomingFrom||sameOutgoingTo?0:fromWeight+toWeight);
		},
		
		/**
		 * Removes all current dockers from the node 
		 * (except the start and end) and adds two new
		 * dockers, on the position a and b.
		 * @param {Object} edge
		 * @param {Object} a
		 * @param {Object} b
		 */
		setDockers: function(edge, a, b){
			if (!edge){ return }
			
			// Remove all dockers (implicit,
			// start and end dockers will not removed)
			edge.dockers.each(function(r){
				edge.removeDocker(r);
			});
			
			// For a and b (if exists), create
			// a new docker and set position
			[a, b].compact().each(function(pos){
				var docker = edge.createDocker(undefined, pos);
				docker.bounds.centerMoveTo(pos);
			});
			
			// Update all dockers from the edge
			edge.dockers.each(function(docker){
				docker.update()
			})
			
			// Update edge
			//edge.refresh();
			edge._update(true);
			
		}
	});
	
	
}()
/**
 * Copyright (c) 2009
 * Sven Wagner-Boysen, Willi Tscheschner
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **/

if(!ORYX.Plugins)
	ORYX.Plugins = new Object();

new function(){
	
	ORYX.Plugins.BPMN2_0 = {
	
		/**
		 *	Constructor
		 *	@param {Object} Facade: The Facade of the Editor
		 */
		construct: function(facade){
			this.facade = facade;
			
			this.facade.registerOnEvent(ORYX.CONFIG.EVENT_DRAGDOCKER_DOCKED, this.handleDockerDocked.bind(this));
			this.facade.registerOnEvent(ORYX.CONFIG.EVENT_PROPWINDOW_PROP_CHANGED, this.handlePropertyChanged.bind(this));
			this.facade.registerOnEvent('layout.bpmn2_0.subprocess', this.handleSubProcess.bind(this));
			this.facade.registerOnEvent(ORYX.CONFIG.EVENT_SHAPEREMOVED, this.handleShapeRemove.bind(this));
			
			this.facade.registerOnEvent(ORYX.CONFIG.EVENT_LOADED, this.afterLoad.bind(this));
			

			this.namespace = undefined;
		},
		
		hashedSubProcesses: {},
		
		hashChildShapes: function(shape){
			var children = shape.getChildNodes();
			children.each(function(child){
				if (this.hashedSubProcesses[child.id]){
					this.hashedSubProcesses[child.id] = child.absoluteXY();
					this.hashedSubProcesses[child.id].width 	= child.bounds.width();
					this.hashedSubProcesses[child.id].height 	= child.bounds.height();
					this.hashChildShapes(child);
				}
			}.bind(this));
		},
	
		/**
		 * Handle the layouting of a sub process.
		 * Mainly to adjust the child dockers of a sub process. 
		 *
		 */
		handleSubProcess : function(option) {
			
			var sh = option.shape;
			
			if (!this.hashedSubProcesses[sh.id]) {
				this.hashedSubProcesses[sh.id] = sh.absoluteXY();
				this.hashedSubProcesses[sh.id].width 	= sh.bounds.width();
				this.hashedSubProcesses[sh.id].height 	= sh.bounds.height();
				return;
			}
			
			var offset = sh.absoluteXY();
			offset.x -= this.hashedSubProcesses[sh.id].x;
			offset.y -= this.hashedSubProcesses[sh.id].y;
			
			var resized = this.hashedSubProcesses[sh.id].width !== sh.bounds.width() || this.hashedSubProcesses[sh.id].height !== sh.bounds.height();
			
			this.hashedSubProcesses[sh.id] = sh.absoluteXY();
			this.hashedSubProcesses[sh.id].width 	= sh.bounds.width();
			this.hashedSubProcesses[sh.id].height 	= sh.bounds.height();
			this.hashChildShapes(sh);
			
			
			// Move dockers only if currently is not resizing
			if (this.facade.isExecutingCommands()&&!resized) {
				this.moveChildDockers(sh, offset);
			}
		},
		
		moveChildDockers: function(shape, offset){
			
			if (!offset.x && !offset.y) {
				return;
			} 
			
			var children = shape.getChildNodes(true);
			
			// Get all nodes
			var dockers = children
				// Get all incoming and outgoing edges
				.map(function(node){
					return [].concat(node.getIncomingShapes())
							.concat(node.getOutgoingShapes())
				})
				// Flatten all including arrays into one
				.flatten()
				// Get every edge only once
				.uniq()
				// Get all dockers
				.map(function(edge){
					return edge.dockers.length > 2 ? 
							edge.dockers.slice(1, edge.dockers.length-1) : 
							[];
				})
				// Flatten the dockers lists
				.flatten();
	
			var abs = shape.absoluteBounds();
			abs.moveBy(-offset.x, -offset.y)
			var obj = {};
			dockers.each(function(docker){
				
				if (docker.isChanged){
					return;
				}
				
				var off = Object.clone(offset);
				
				if (!abs.isIncluded(docker.bounds.center())){
					var index 	= docker.parent.dockers.indexOf(docker);
					var size	= docker.parent.dockers.length;
					var from 	= docker.parent.getSource();
					var to 		= docker.parent.getTarget();
					
					var bothAreIncluded = children.include(from) && children.include(to);
					
					if (!bothAreIncluded){
						var previousIsOver = index !== 0 ? abs.isIncluded(docker.parent.dockers[index-1].bounds.center()) : false;
						var nextIsOver = index !== size-1 ? abs.isIncluded(docker.parent.dockers[index+1].bounds.center()) : false;
						
						if (!previousIsOver && !nextIsOver){ return; }
						
						var ref = docker.parent.dockers[previousIsOver ? index-1 : index+1];
						if (Math.abs(-Math.abs(ref.bounds.center().x-docker.bounds.center().x)) < 2){
							off.y = 0;
						} else if(Math.abs(-Math.abs(ref.bounds.center().y-docker.bounds.center().y)) < 2){
							off.x = 0;
						} else {
							return;
						}
					}
					
				}
				
				obj[docker.getId()] = {
					docker:docker,
					offset:off
				}
			})
			
			// Set dockers
			this.facade.executeCommands([new ORYX.Core.MoveDockersCommand(obj)]);
				
		},
		
		/**
		 * DragDocker.Docked Handler
		 *
		 */	
		handleDockerDocked: function(options) {
			var namespace = this.getNamespace();
			
			var edge = options.parent;
			var edgeSource = options.target;
			
			if(edge.getStencil().id() === namespace + "SequenceFlow") {
				var isGateway = edgeSource.getStencil().groups().find(function(group) {
						if(group == "Gateways") 
							return group;
					});
				if(!isGateway && (edge.properties["oryx-conditiontype"] == "Expression"))
					// show diamond on edge source
					edge.setProperty("oryx-showdiamondmarker", true);
				else 
					// do not show diamond on edge source
					edge.setProperty("oryx-showdiamondmarker", false);
				
				// update edge rendering
				//edge.update();
				
				this.facade.getCanvas().update();
			}
		},
		
		/**
		 * PropertyWindow.PropertyChanged Handler
		 */
		handlePropertyChanged: function(option) {
			var namespace = this.getNamespace();
			
			var shapes = option.elements;
			var propertyKey = option.key;
			var propertyValue = option.value;
			
			var changed = false;
			shapes.each(function(shape){
				if((shape.getStencil().id() === namespace + "SequenceFlow") &&
					(propertyKey === "oryx-conditiontype")) {
					
					if(propertyValue != "Expression")
						// Do not show the Diamond
						shape.setProperty("oryx-showdiamondmarker", false);
					else {
						var incomingShapes = shape.getIncomingShapes();
						
						if(!incomingShapes) {
							shape.setProperty("oryx-showdiamondmarker", true);
						}
						
						var incomingGateway = incomingShapes.find(function(aShape) {
							var foundGateway = aShape.getStencil().groups().find(function(group) {
								if(group == "Gateways") 
									return group;
							});
							if(foundGateway)
								return foundGateway;
						});
						
						if(!incomingGateway) 
							// show diamond on edge source
							shape.setProperty("oryx-showdiamondmarker", true);
						else
							// do not show diamond
							shape.setProperty("oryx-showdiamondmarker", false);
					}
					
					changed = true;
				}
			}.bind(this));
			
			if(changed) {this.facade.getCanvas().update();}
			
		},
		
		hashedPoolPositions : {},
		hashedLaneDepth : {},
		hashedBounds : {},
		hashedPositions: {},
		
		isResized: function(shape, bounds){
			
			if (!bounds||!shape){
				return false;
			}
			
			var oldB = bounds;
			//var oldXY = oldB.upperLeft();
			//var xy = shape.absoluteXY();
			return Math.round(oldB.width() - shape.bounds.width()) !== 0 || Math.round(oldB.height() - shape.bounds.height()) !== 0
		},
		
		getDepth: function(child, parent){
			
			var i=0;
			while(child && child.parent && child !== parent){
				child = child.parent;
				++i
			}
			return i;
		},
		
		updateDepth: function(lane, fromDepth, toDepth){
			
			var xOffset = (fromDepth - toDepth) * 30;
			
			lane.getChildNodes().each(function(shape){
				shape.bounds.moveBy(xOffset, 0);
				
				[].concat(children[j].getIncomingShapes())
						.concat(children[j].getOutgoingShapes())
						
			})
			
		},
		
		moveBy: function(pos, offset){
			pos.x += offset.x;
			pos.y += offset.y;
			return pos;
		},
		
		getHashedBounds: function(shape){
			return this.currentPool && this.hashedBounds[this.currentPool.id][shape.id] ? this.hashedBounds[this.currentPool.id][shape.id] : shape.absoluteBounds();
		},
				
		getNamespace: function() {
			if(!this.namespace) {
				var stencilsets = this.facade.getStencilSets();
				if(stencilsets.keys()) {
					this.namespace = stencilsets.keys()[0];
				} else {
					return undefined;
				}
			}
			return this.namespace;
		}
	};
		
	ORYX.Plugins.BPMN2_0 = ORYX.Plugins.AbstractPlugin.extend(ORYX.Plugins.BPMN2_0);
	
}()