diff --git a/js/ui/mxgraph/src/js/view/mxCellRenderer.js b/js/ui/mxgraph/src/js/view/mxCellRenderer.js
new file mode 100644
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+++ b/js/ui/mxgraph/src/js/view/mxCellRenderer.js
@@ -0,0 +1,1530 @@
+/**
+ * Copyright (c) 2006-2015, JGraph Ltd
+ * Copyright (c) 2006-2015, Gaudenz Alder
+ */
+/**
+ * Class: mxCellRenderer
+ * 
+ * Renders cells into a document object model. The <defaultShapes> is a global
+ * map of shapename, constructor pairs that is used in all instances. You can
+ * get a list of all available shape names using the following code.
+ * 
+ * In general the cell renderer is in charge of creating, redrawing and
+ * destroying the shape and label associated with a cell state, as well as
+ * some other graphical objects, namely controls and overlays. The shape
+ * hieararchy in the display (ie. the hierarchy in which the DOM nodes
+ * appear in the document) does not reflect the cell hierarchy. The shapes
+ * are a (flat) sequence of shapes and labels inside the draw pane of the
+ * graph view, with some exceptions, namely the HTML labels being placed
+ * directly inside the graph container for certain browsers.
+ * 
+ * (code)
+ * mxLog.show();
+ * for (var i in mxCellRenderer.prototype.defaultShapes)
+ * {
+ *   mxLog.debug(i);
+ * }
+ * (end)
+ *
+ * Constructor: mxCellRenderer
+ * 
+ * Constructs a new cell renderer with the following built-in shapes:
+ * arrow, rectangle, ellipse, rhombus, image, line, label, cylinder,
+ * swimlane, connector, actor and cloud.
+ */
+function mxCellRenderer() { };
+
+/**
+ * Variable: defaultEdgeShape
+ * 
+ * Defines the default shape for edges. Default is <mxConnector>.
+ */
+mxCellRenderer.prototype.defaultEdgeShape = mxConnector;
+
+/**
+ * Variable: defaultVertexShape
+ * 
+ * Defines the default shape for vertices. Default is <mxRectangleShape>.
+ */
+mxCellRenderer.prototype.defaultVertexShape = mxRectangleShape;
+
+/**
+ * Variable: defaultTextShape
+ * 
+ * Defines the default shape for labels. Default is <mxText>.
+ */
+mxCellRenderer.prototype.defaultTextShape = mxText;
+
+/**
+ * Variable: legacyControlPosition
+ * 
+ * Specifies if the folding icon should ignore the horizontal
+ * orientation of a swimlane. Default is true.
+ */
+mxCellRenderer.prototype.legacyControlPosition = true;
+
+/**
+ * Variable: legacySpacing
+ * 
+ * Specifies if spacing and label position should be ignored if overflow is
+ * fill or width. Default is true for backwards compatiblity.
+ */
+mxCellRenderer.prototype.legacySpacing = true;
+
+/**
+ * Variable: defaultShapes
+ * 
+ * Static array that contains the globally registered shapes which are
+ * known to all instances of this class. For adding new shapes you should
+ * use the static <mxCellRenderer.registerShape> function.
+ */
+mxCellRenderer.prototype.defaultShapes = new Object();
+
+/**
+ * Variable: antiAlias
+ * 
+ * Anti-aliasing option for new shapes. Default is true.
+ */
+mxCellRenderer.prototype.antiAlias = true;
+
+/**
+ * Variable: forceControlClickHandler
+ * 
+ * Specifies if the enabled state of the graph should be ignored in the control
+ * click handler (to allow folding in disabled graphs). Default is false.
+ */
+mxCellRenderer.prototype.forceControlClickHandler = false;
+
+/**
+ * Function: registerShape
+ * 
+ * Registers the given constructor under the specified key in this instance
+ * of the renderer.
+ * 
+ * Example:
+ * 
+ * (code)
+ * mxCellRenderer.registerShape(mxConstants.SHAPE_RECTANGLE, mxRectangleShape);
+ * (end)
+ * 
+ * Parameters:
+ * 
+ * key - String representing the shape name.
+ * shape - Constructor of the <mxShape> subclass.
+ */
+mxCellRenderer.registerShape = function(key, shape)
+{
+	mxCellRenderer.prototype.defaultShapes[key] = shape;
+};
+
+// Adds default shapes into the default shapes array
+mxCellRenderer.registerShape(mxConstants.SHAPE_RECTANGLE, mxRectangleShape);
+mxCellRenderer.registerShape(mxConstants.SHAPE_ELLIPSE, mxEllipse);
+mxCellRenderer.registerShape(mxConstants.SHAPE_RHOMBUS, mxRhombus);
+mxCellRenderer.registerShape(mxConstants.SHAPE_CYLINDER, mxCylinder);
+mxCellRenderer.registerShape(mxConstants.SHAPE_CONNECTOR, mxConnector);
+mxCellRenderer.registerShape(mxConstants.SHAPE_ACTOR, mxActor);
+mxCellRenderer.registerShape(mxConstants.SHAPE_TRIANGLE, mxTriangle);
+mxCellRenderer.registerShape(mxConstants.SHAPE_HEXAGON, mxHexagon);
+mxCellRenderer.registerShape(mxConstants.SHAPE_CLOUD, mxCloud);
+mxCellRenderer.registerShape(mxConstants.SHAPE_LINE, mxLine);
+mxCellRenderer.registerShape(mxConstants.SHAPE_ARROW, mxArrow);
+mxCellRenderer.registerShape(mxConstants.SHAPE_ARROW_CONNECTOR, mxArrowConnector);
+mxCellRenderer.registerShape(mxConstants.SHAPE_DOUBLE_ELLIPSE, mxDoubleEllipse);
+mxCellRenderer.registerShape(mxConstants.SHAPE_SWIMLANE, mxSwimlane);
+mxCellRenderer.registerShape(mxConstants.SHAPE_IMAGE, mxImageShape);
+mxCellRenderer.registerShape(mxConstants.SHAPE_LABEL, mxLabel);
+
+/**
+ * Function: initializeShape
+ * 
+ * Initializes the shape in the given state by calling its init method with
+ * the correct container after configuring it using <configureShape>.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the shape should be initialized.
+ */
+mxCellRenderer.prototype.initializeShape = function(state)
+{
+	state.shape.dialect = state.view.graph.dialect;
+	this.configureShape(state);
+	state.shape.init(state.view.getDrawPane());
+};
+
+/**
+ * Function: createShape
+ * 
+ * Creates and returns the shape for the given cell state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the shape should be created.
+ */
+mxCellRenderer.prototype.createShape = function(state)
+{
+	var shape = null;
+	
+	if (state.style != null)
+	{
+		// Checks if there is a stencil for the name and creates
+		// a shape instance for the stencil if one exists
+		var stencil = mxStencilRegistry.getStencil(state.style[mxConstants.STYLE_SHAPE]);
+		
+		if (stencil != null)
+		{
+			shape = new mxShape(stencil);
+		}
+		else
+		{
+			var ctor = this.getShapeConstructor(state);
+			shape = new ctor();
+		}
+	}
+	
+	return shape;
+};
+
+/**
+ * Function: createIndicatorShape
+ * 
+ * Creates the indicator shape for the given cell state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the indicator shape should be created.
+ */
+mxCellRenderer.prototype.createIndicatorShape = function(state)
+{
+	state.shape.indicatorShape = this.getShape(state.view.graph.getIndicatorShape(state));
+};
+
+/**
+ * Function: getShape
+ * 
+ * Returns the shape for the given name from <defaultShapes>.
+ */
+mxCellRenderer.prototype.getShape = function(name)
+{
+	return (name != null) ? mxCellRenderer.prototype.defaultShapes[name] : null;
+};
+
+/**
+ * Function: getShapeConstructor
+ * 
+ * Returns the constructor to be used for creating the shape.
+ */
+mxCellRenderer.prototype.getShapeConstructor = function(state)
+{
+	var ctor = this.getShape(state.style[mxConstants.STYLE_SHAPE]);
+	
+	if (ctor == null)
+	{
+		ctor = (state.view.graph.getModel().isEdge(state.cell)) ?
+			this.defaultEdgeShape : this.defaultVertexShape;
+	}
+	
+	return ctor;
+};
+
+/**
+ * Function: configureShape
+ * 
+ * Configures the shape for the given cell state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the shape should be configured.
+ */
+mxCellRenderer.prototype.configureShape = function(state)
+{
+	state.shape.apply(state);
+	state.shape.image = state.view.graph.getImage(state);
+	state.shape.indicatorColor = state.view.graph.getIndicatorColor(state);
+	state.shape.indicatorStrokeColor = state.style[mxConstants.STYLE_INDICATOR_STROKECOLOR];
+	state.shape.indicatorGradientColor = state.view.graph.getIndicatorGradientColor(state);
+	state.shape.indicatorDirection = state.style[mxConstants.STYLE_INDICATOR_DIRECTION];
+	state.shape.indicatorImage = state.view.graph.getIndicatorImage(state);
+
+	this.postConfigureShape(state);
+};
+
+/**
+ * Function: postConfigureShape
+ * 
+ * Replaces any reserved words used for attributes, eg. inherit,
+ * indicated or swimlane for colors in the shape for the given state.
+ * This implementation resolves these keywords on the fill, stroke
+ * and gradient color keys.
+ */
+mxCellRenderer.prototype.postConfigureShape = function(state)
+{
+	if (state.shape != null)
+	{
+		this.resolveColor(state, 'indicatorColor', mxConstants.STYLE_FILLCOLOR);
+		this.resolveColor(state, 'indicatorGradientColor', mxConstants.STYLE_GRADIENTCOLOR);
+		this.resolveColor(state, 'fill', mxConstants.STYLE_FILLCOLOR);
+		this.resolveColor(state, 'stroke', mxConstants.STYLE_STROKECOLOR);
+		this.resolveColor(state, 'gradient', mxConstants.STYLE_GRADIENTCOLOR);
+	}
+};
+
+/**
+ * Function: resolveColor
+ * 
+ * Resolves special keywords 'inherit', 'indicated' and 'swimlane' and sets
+ * the respective color on the shape.
+ */
+mxCellRenderer.prototype.resolveColor = function(state, field, key)
+{
+	var value = state.shape[field];
+	var graph = state.view.graph;
+	var referenced = null;
+	
+	if (value == 'inherit')
+	{
+		referenced = graph.model.getParent(state.cell);
+	}
+	else if (value == 'swimlane')
+	{
+		if (graph.model.getTerminal(state.cell, false) != null)
+		{
+			referenced = graph.model.getTerminal(state.cell, false);
+		}
+		else
+		{
+			referenced = state.cell;
+		}
+		
+		referenced = graph.getSwimlane(referenced);
+		key = graph.swimlaneIndicatorColorAttribute;
+	}
+	else if (value == 'indicated')
+	{
+		state.shape[field] = state.shape.indicatorColor;
+	}
+	
+	if (referenced != null)
+	{
+		var rstate = graph.getView().getState(referenced);
+		state.shape[field] = null;
+
+		if (rstate != null)
+		{
+			if (rstate.shape != null && field != 'indicatorColor')
+			{
+				state.shape[field] = rstate.shape[field];
+			}
+			else
+			{
+				state.shape[field] = rstate.style[key];
+			}
+		}
+	}
+};
+
+/**
+ * Function: getLabelValue
+ * 
+ * Returns the value to be used for the label.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the label should be created.
+ */
+mxCellRenderer.prototype.getLabelValue = function(state)
+{
+	return state.view.graph.getLabel(state.cell);
+};
+
+/**
+ * Function: createLabel
+ * 
+ * Creates the label for the given cell state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the label should be created.
+ */
+mxCellRenderer.prototype.createLabel = function(state, value)
+{
+	var graph = state.view.graph;
+	var isEdge = graph.getModel().isEdge(state.cell);
+	
+	if (state.style[mxConstants.STYLE_FONTSIZE] > 0 || state.style[mxConstants.STYLE_FONTSIZE] == null)
+	{
+		// Avoids using DOM node for empty labels
+		var isForceHtml = (graph.isHtmlLabel(state.cell) || (value != null && mxUtils.isNode(value)));
+
+		state.text = new this.defaultTextShape(value, new mxRectangle(),
+				(state.style[mxConstants.STYLE_ALIGN] || mxConstants.ALIGN_CENTER),
+				graph.getVerticalAlign(state),
+				state.style[mxConstants.STYLE_FONTCOLOR],
+				state.style[mxConstants.STYLE_FONTFAMILY],
+				state.style[mxConstants.STYLE_FONTSIZE],
+				state.style[mxConstants.STYLE_FONTSTYLE],
+				state.style[mxConstants.STYLE_SPACING],
+				state.style[mxConstants.STYLE_SPACING_TOP],
+				state.style[mxConstants.STYLE_SPACING_RIGHT],
+				state.style[mxConstants.STYLE_SPACING_BOTTOM],
+				state.style[mxConstants.STYLE_SPACING_LEFT],
+				state.style[mxConstants.STYLE_HORIZONTAL],
+				state.style[mxConstants.STYLE_LABEL_BACKGROUNDCOLOR],
+				state.style[mxConstants.STYLE_LABEL_BORDERCOLOR],
+				graph.isWrapping(state.cell) && graph.isHtmlLabel(state.cell),
+				graph.isLabelClipped(state.cell),
+				state.style[mxConstants.STYLE_OVERFLOW],
+				state.style[mxConstants.STYLE_LABEL_PADDING],
+				mxUtils.getValue(state.style, mxConstants.STYLE_TEXT_DIRECTION, mxConstants.DEFAULT_TEXT_DIRECTION));
+		state.text.opacity = mxUtils.getValue(state.style, mxConstants.STYLE_TEXT_OPACITY, 100);
+		state.text.dialect = (isForceHtml) ? mxConstants.DIALECT_STRICTHTML : state.view.graph.dialect;
+		state.text.style = state.style;
+		state.text.state = state;
+		this.initializeLabel(state, state.text);
+		
+		// Workaround for touch devices routing all events for a mouse gesture
+		// (down, move, up) via the initial DOM node. IE additionally redirects
+		// the event via the initial DOM node but the event source is the node
+		// under the mouse, so we need to check if this is the case and force
+		// getCellAt for the subsequent mouseMoves and the final mouseUp.
+		var forceGetCell = false;
+		
+		var getState = function(evt)
+		{
+			var result = state;
+
+			if (mxClient.IS_TOUCH || forceGetCell)
+			{
+				var x = mxEvent.getClientX(evt);
+				var y = mxEvent.getClientY(evt);
+				
+				// Dispatches the drop event to the graph which
+				// consumes and executes the source function
+				var pt = mxUtils.convertPoint(graph.container, x, y);
+				result = graph.view.getState(graph.getCellAt(pt.x, pt.y));
+			}
+			
+			return result;
+		};
+		
+		// TODO: Add handling for special touch device gestures
+		mxEvent.addGestureListeners(state.text.node,
+			mxUtils.bind(this, function(evt)
+			{
+				if (this.isLabelEvent(state, evt))
+				{
+					graph.fireMouseEvent(mxEvent.MOUSE_DOWN, new mxMouseEvent(evt, state));
+					forceGetCell = graph.dialect != mxConstants.DIALECT_SVG &&
+						mxEvent.getSource(evt).nodeName == 'IMG';
+				}
+			}),
+			mxUtils.bind(this, function(evt)
+			{
+				if (this.isLabelEvent(state, evt))
+				{
+					graph.fireMouseEvent(mxEvent.MOUSE_MOVE, new mxMouseEvent(evt, getState(evt)));
+				}
+			}),
+			mxUtils.bind(this, function(evt)
+			{
+				if (this.isLabelEvent(state, evt))
+				{
+					graph.fireMouseEvent(mxEvent.MOUSE_UP, new mxMouseEvent(evt, getState(evt)));
+					forceGetCell = false;
+				}
+			})
+		);
+
+		// Uses double click timeout in mxGraph for quirks mode
+		if (graph.nativeDblClickEnabled)
+		{
+			mxEvent.addListener(state.text.node, 'dblclick',
+				mxUtils.bind(this, function(evt)
+				{
+					if (this.isLabelEvent(state, evt))
+					{
+						graph.dblClick(evt, state.cell);
+						mxEvent.consume(evt);
+					}
+				})
+			);
+		}
+	}
+};
+
+/**
+ * Function: initializeLabel
+ * 
+ * Initiailzes the label with a suitable container.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose label should be initialized.
+ */
+mxCellRenderer.prototype.initializeLabel = function(state, shape)
+{
+	if (mxClient.IS_SVG && mxClient.NO_FO && shape.dialect != mxConstants.DIALECT_SVG)
+	{
+		shape.init(state.view.graph.container);
+	}
+	else
+	{
+		shape.init(state.view.getDrawPane());
+	}
+};
+
+/**
+ * Function: createCellOverlays
+ * 
+ * Creates the actual shape for showing the overlay for the given cell state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the overlay should be created.
+ */
+mxCellRenderer.prototype.createCellOverlays = function(state)
+{
+	var graph = state.view.graph;
+	var overlays = graph.getCellOverlays(state.cell);
+	var dict = null;
+	
+	if (overlays != null)
+	{
+		dict = new mxDictionary();
+		
+		for (var i = 0; i < overlays.length; i++)
+		{
+			var shape = (state.overlays != null) ? state.overlays.remove(overlays[i]) : null;
+			
+			if (shape == null)
+			{
+				var tmp = new mxImageShape(new mxRectangle(), overlays[i].image.src);
+				tmp.dialect = state.view.graph.dialect;
+				tmp.preserveImageAspect = false;
+				tmp.overlay = overlays[i];
+				this.initializeOverlay(state, tmp);
+				this.installCellOverlayListeners(state, overlays[i], tmp);
+	
+				if (overlays[i].cursor != null)
+				{
+					tmp.node.style.cursor = overlays[i].cursor;
+				}
+				
+				dict.put(overlays[i], tmp);
+			}
+			else
+			{
+				dict.put(overlays[i], shape);
+			}
+		}
+	}
+	
+	// Removes unused
+	if (state.overlays != null)
+	{
+		state.overlays.visit(function(id, shape)
+		{
+			shape.destroy();
+		});
+	}
+	
+	state.overlays = dict;
+};
+
+/**
+ * Function: initializeOverlay
+ * 
+ * Initializes the given overlay.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the overlay should be created.
+ * overlay - <mxImageShape> that represents the overlay.
+ */
+mxCellRenderer.prototype.initializeOverlay = function(state, overlay)
+{
+	overlay.init(state.view.getOverlayPane());
+};
+
+/**
+ * Function: installOverlayListeners
+ * 
+ * Installs the listeners for the given <mxCellState>, <mxCellOverlay> and
+ * <mxShape> that represents the overlay.
+ */
+mxCellRenderer.prototype.installCellOverlayListeners = function(state, overlay, shape)
+{
+	var graph  = state.view.graph;
+	
+	mxEvent.addListener(shape.node, 'click', function (evt)
+	{
+		if (graph.isEditing())
+		{
+			graph.stopEditing(!graph.isInvokesStopCellEditing());
+		}
+		
+		overlay.fireEvent(new mxEventObject(mxEvent.CLICK,
+				'event', evt, 'cell', state.cell));
+	});
+	
+	mxEvent.addGestureListeners(shape.node,
+		function (evt)
+		{
+			mxEvent.consume(evt);
+		},
+		function (evt)
+		{
+			graph.fireMouseEvent(mxEvent.MOUSE_MOVE,
+				new mxMouseEvent(evt, state));
+		});
+	
+	if (mxClient.IS_TOUCH)
+	{
+		mxEvent.addListener(shape.node, 'touchend', function (evt)
+		{
+			overlay.fireEvent(new mxEventObject(mxEvent.CLICK,
+					'event', evt, 'cell', state.cell));
+		});
+	}
+};
+
+/**
+ * Function: createControl
+ * 
+ * Creates the control for the given cell state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the control should be created.
+ */
+mxCellRenderer.prototype.createControl = function(state)
+{
+	var graph = state.view.graph;
+	var image = graph.getFoldingImage(state);
+	
+	if (graph.foldingEnabled && image != null)
+	{
+		if (state.control == null)
+		{
+			var b = new mxRectangle(0, 0, image.width, image.height);
+			state.control = new mxImageShape(b, image.src);
+			state.control.preserveImageAspect = false;
+			state.control.dialect = graph.dialect;
+
+			this.initControl(state, state.control, true, this.createControlClickHandler(state));
+		}
+	}
+	else if (state.control != null)
+	{
+		state.control.destroy();
+		state.control = null;
+	}
+};
+
+/**
+ * Function: createControlClickHandler
+ * 
+ * Hook for creating the click handler for the folding icon.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose control click handler should be returned.
+ */
+mxCellRenderer.prototype.createControlClickHandler = function(state)
+{
+	var graph = state.view.graph;
+	
+	return mxUtils.bind(this, function (evt)
+	{
+		if (this.forceControlClickHandler || graph.isEnabled())
+		{
+			var collapse = !graph.isCellCollapsed(state.cell);
+			graph.foldCells(collapse, false, [state.cell], null, evt);
+			mxEvent.consume(evt);
+		}
+	});
+};
+
+/**
+ * Function: initControl
+ * 
+ * Initializes the given control and returns the corresponding DOM node.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the control should be initialized.
+ * control - <mxShape> to be initialized.
+ * handleEvents - Boolean indicating if mousedown and mousemove should fire events via the graph.
+ * clickHandler - Optional function to implement clicks on the control.
+ */
+mxCellRenderer.prototype.initControl = function(state, control, handleEvents, clickHandler)
+{
+	var graph = state.view.graph;
+	
+	// In the special case where the label is in HTML and the display is SVG the image
+	// should go into the graph container directly in order to be clickable. Otherwise
+	// it is obscured by the HTML label that overlaps the cell.
+	var isForceHtml = graph.isHtmlLabel(state.cell) && mxClient.NO_FO &&
+		graph.dialect == mxConstants.DIALECT_SVG;
+
+	if (isForceHtml)
+	{
+		control.dialect = mxConstants.DIALECT_PREFERHTML;
+		control.init(graph.container);
+		control.node.style.zIndex = 1;
+	}
+	else
+	{
+		control.init(state.view.getOverlayPane());
+	}
+
+	var node = control.innerNode || control.node;
+	
+	// Workaround for missing click event on iOS is to check tolerance below
+	if (clickHandler != null && !mxClient.IS_IOS)
+	{
+		if (graph.isEnabled())
+		{
+			node.style.cursor = 'pointer';
+		}
+		
+		mxEvent.addListener(node, 'click', clickHandler);
+	}
+	
+	if (handleEvents)
+	{
+		var first = null;
+
+		mxEvent.addGestureListeners(node,
+			function (evt)
+			{
+				first = new mxPoint(mxEvent.getClientX(evt), mxEvent.getClientY(evt));
+				graph.fireMouseEvent(mxEvent.MOUSE_DOWN, new mxMouseEvent(evt, state));
+				mxEvent.consume(evt);
+			},
+			function (evt)
+			{
+				graph.fireMouseEvent(mxEvent.MOUSE_MOVE, new mxMouseEvent(evt, state));
+			},
+			function (evt)
+			{
+				graph.fireMouseEvent(mxEvent.MOUSE_UP, new mxMouseEvent(evt, state));
+				mxEvent.consume(evt);
+			});
+		
+		// Uses capture phase for event interception to stop bubble phase
+		if (clickHandler != null && mxClient.IS_IOS)
+		{
+			node.addEventListener('touchend', function(evt)
+			{
+				if (first != null)
+				{
+					var tol = graph.tolerance;
+					
+					if (Math.abs(first.x - mxEvent.getClientX(evt)) < tol &&
+						Math.abs(first.y - mxEvent.getClientY(evt)) < tol)
+					{
+						clickHandler.call(clickHandler, evt);
+						mxEvent.consume(evt);
+					}
+				}
+			}, true);
+		}
+	}
+	
+	return node;
+};
+
+/**
+ * Function: isShapeEvent
+ * 
+ * Returns true if the event is for the shape of the given state. This
+ * implementation always returns true.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose shape fired the event.
+ * evt - Mouse event which was fired.
+ */
+mxCellRenderer.prototype.isShapeEvent = function(state, evt)
+{
+	return true;
+};
+
+/**
+ * Function: isLabelEvent
+ * 
+ * Returns true if the event is for the label of the given state. This
+ * implementation always returns true.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose label fired the event.
+ * evt - Mouse event which was fired.
+ */
+mxCellRenderer.prototype.isLabelEvent = function(state, evt)
+{
+	return true;
+};
+
+/**
+ * Function: installListeners
+ * 
+ * Installs the event listeners for the given cell state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the event listeners should be isntalled.
+ */
+mxCellRenderer.prototype.installListeners = function(state)
+{
+	var graph = state.view.graph;
+
+	// Workaround for touch devices routing all events for a mouse
+	// gesture (down, move, up) via the initial DOM node. Same for
+	// HTML images in all IE versions (VML images are working).
+	var getState = function(evt)
+	{
+		var result = state;
+		
+		if ((graph.dialect != mxConstants.DIALECT_SVG && mxEvent.getSource(evt).nodeName == 'IMG') || mxClient.IS_TOUCH)
+		{
+			var x = mxEvent.getClientX(evt);
+			var y = mxEvent.getClientY(evt);
+			
+			// Dispatches the drop event to the graph which
+			// consumes and executes the source function
+			var pt = mxUtils.convertPoint(graph.container, x, y);
+			result = graph.view.getState(graph.getCellAt(pt.x, pt.y));
+		}
+		
+		return result;
+	};
+
+	mxEvent.addGestureListeners(state.shape.node,
+		mxUtils.bind(this, function(evt)
+		{
+			if (this.isShapeEvent(state, evt))
+			{
+				graph.fireMouseEvent(mxEvent.MOUSE_DOWN, new mxMouseEvent(evt, state));
+			}
+		}),
+		mxUtils.bind(this, function(evt)
+		{
+			if (this.isShapeEvent(state, evt))
+			{
+				graph.fireMouseEvent(mxEvent.MOUSE_MOVE, new mxMouseEvent(evt, getState(evt)));
+			}
+		}),
+		mxUtils.bind(this, function(evt)
+		{
+			if (this.isShapeEvent(state, evt))
+			{
+				graph.fireMouseEvent(mxEvent.MOUSE_UP, new mxMouseEvent(evt, getState(evt)));
+			}
+		})
+	);
+	
+	// Uses double click timeout in mxGraph for quirks mode
+	if (graph.nativeDblClickEnabled)
+	{
+		mxEvent.addListener(state.shape.node, 'dblclick',
+			mxUtils.bind(this, function(evt)
+			{
+				if (this.isShapeEvent(state, evt))
+				{
+					graph.dblClick(evt, state.cell);
+					mxEvent.consume(evt);
+				}
+			})
+		);
+	}
+};
+
+/**
+ * Function: redrawLabel
+ * 
+ * Redraws the label for the given cell state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose label should be redrawn.
+ */
+mxCellRenderer.prototype.redrawLabel = function(state, forced)
+{
+	var value = this.getLabelValue(state);
+	
+	if (state.text == null && value != null && (mxUtils.isNode(value) || value.length > 0))
+	{
+		this.createLabel(state, value);
+	}
+	else if (state.text != null && (value == null || value.length == 0))
+	{
+		state.text.destroy();
+		state.text = null;
+	}
+
+	if (state.text != null)
+	{
+		var graph = state.view.graph;
+
+		// Forced is true if the style has changed, so to get the updated
+		// result in getLabelBounds we apply the new style to the shape
+		if (forced)
+		{
+			// Checks if a full repaint is needed
+			if (state.text.lastValue != null && this.isTextShapeInvalid(state, state.text))
+			{
+				// Forces a full repaint
+				state.text.lastValue = null;
+			}
+			
+			state.text.resetStyles();
+			state.text.apply(state);
+			
+			// Special case opacity which is taken from textOpacity style for text
+			state.text.opacity = mxUtils.getValue(state.style, mxConstants.STYLE_TEXT_OPACITY, 100);
+		}
+		
+		var bounds = this.getLabelBounds(state);
+		var wrapping = graph.isWrapping(state.cell);
+		var clipping = graph.isLabelClipped(state.cell);
+		var isForceHtml = (state.view.graph.isHtmlLabel(state.cell) || (value != null && mxUtils.isNode(value)));
+		var dialect = (isForceHtml) ? mxConstants.DIALECT_STRICTHTML : state.view.graph.dialect;
+
+		// Text is a special case where change of dialect is possible at runtime
+		var overflow = state.style[mxConstants.STYLE_OVERFLOW] || 'visible';
+		
+		if (forced || state.text.value != value || state.text.isWrapping != wrapping ||
+			state.text.overflow != overflow || state.text.isClipping != clipping ||
+			state.text.scale != this.getTextScale(state) || state.text.dialect != dialect ||
+			!state.text.bounds.equals(bounds))
+		{
+			state.text.dialect = dialect;
+			state.text.value = value;
+			state.text.bounds = bounds;
+			state.text.scale = this.getTextScale(state);
+			state.text.wrap = wrapping;
+			state.text.clipped = clipping;
+			state.text.overflow = overflow;
+			
+			// Preserves visible state
+			var vis = state.text.node.style.visibility;
+			this.redrawLabelShape(state.text);
+			state.text.node.style.visibility = vis;
+		}
+	}
+};
+
+/**
+ * Function: isTextShapeInvalid
+ * 
+ * Returns true if the style for the text shape has changed.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose label should be checked.
+ * shape - <mxText> shape to be checked.
+ */
+mxCellRenderer.prototype.isTextShapeInvalid = function(state, shape)
+{
+	function check(property, stylename, defaultValue)
+	{
+		return shape[property] != (state.style[stylename] || defaultValue);
+	};
+
+	return check('fontStyle', mxConstants.STYLE_FONTSTYLE, mxConstants.DEFAULT_FONTSTYLE) ||
+		check('family', mxConstants.STYLE_FONTFAMILY, mxConstants.DEFAULT_FONTFAMILY) ||
+		check('size', mxConstants.STYLE_FONTSIZE, mxConstants.DEFAULT_FONTSIZE) ||
+		check('color', mxConstants.STYLE_FONTCOLOR, 'black') ||
+		check('align', mxConstants.STYLE_ALIGN, '') ||
+		check('valign', mxConstants.STYLE_VERTICAL_ALIGN, '') ||
+		check('spacing', mxConstants.STYLE_SPACING, 2) ||
+		check('spacingTop', mxConstants.STYLE_SPACING_TOP, 2) ||
+		check('spacingRight', mxConstants.STYLE_SPACING_RIGHT, 2) ||
+		check('spacingBottom', mxConstants.STYLE_SPACING_BOTTOM, 2) ||
+		check('spacingLeft', mxConstants.STYLE_SPACING_LEFT, 2) ||
+		check('horizontal', mxConstants.STYLE_HORIZONTAL, true) ||
+		check('background', mxConstants.STYLE_LABEL_BACKGROUNDCOLOR) ||
+		check('border', mxConstants.STYLE_LABEL_BORDERCOLOR) ||
+		check('opacity', mxConstants.STYLE_TEXT_OPACITY, 100) ||
+		check('textDirection', mxConstants.STYLE_TEXT_DIRECTION, mxConstants.DEFAULT_TEXT_DIRECTION);
+};
+
+/**
+ * Function: redrawLabelShape
+ * 
+ * Called to invoked redraw on the given text shape.
+ * 
+ * Parameters:
+ * 
+ * shape - <mxText> shape to be redrawn.
+ */
+mxCellRenderer.prototype.redrawLabelShape = function(shape)
+{
+	shape.redraw();
+};
+
+/**
+ * Function: getTextScale
+ * 
+ * Returns the scaling used for the label of the given state
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose label scale should be returned.
+ */
+mxCellRenderer.prototype.getTextScale = function(state)
+{
+	return state.view.scale;
+};
+
+/**
+ * Function: getLabelBounds
+ * 
+ * Returns the bounds to be used to draw the label of the given state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose label bounds should be returned.
+ */
+mxCellRenderer.prototype.getLabelBounds = function(state)
+{
+	var graph = state.view.graph;
+	var scale = state.view.scale;
+	var isEdge = graph.getModel().isEdge(state.cell);
+	var bounds = new mxRectangle(state.absoluteOffset.x, state.absoluteOffset.y);
+
+	if (isEdge)
+	{
+		var spacing = state.text.getSpacing();
+		bounds.x += spacing.x * scale;
+		bounds.y += spacing.y * scale;
+		
+		var geo = graph.getCellGeometry(state.cell);
+		
+		if (geo != null)
+		{
+			bounds.width = Math.max(0, geo.width * scale);
+			bounds.height = Math.max(0, geo.height * scale);
+		}
+	}
+	else
+	{
+		// Inverts label position
+		if (state.text.isPaintBoundsInverted())
+		{
+			var tmp = bounds.x;
+			bounds.x = bounds.y;
+			bounds.y = tmp;
+		}
+		
+		bounds.x += state.x;
+		bounds.y += state.y;
+		
+		// Minimum of 1 fixes alignment bug in HTML labels
+		bounds.width = Math.max(1, state.width);
+		bounds.height = Math.max(1, state.height);
+
+		var sc = mxUtils.getValue(state.style, mxConstants.STYLE_STROKECOLOR, mxConstants.NONE);
+		
+		if (sc != mxConstants.NONE && sc != '')
+		{
+			var s = parseFloat(mxUtils.getValue(state.style, mxConstants.STYLE_STROKEWIDTH, 1)) * scale;
+			var dx = 1 + Math.floor((s - 1) / 2);
+			var dh = Math.floor(s + 1);
+			
+			bounds.x += dx;
+			bounds.y += dx;
+			bounds.width -= dh;
+			bounds.height -= dh;
+		}
+	}
+
+	if (state.text.isPaintBoundsInverted())
+	{
+		// Rotates around center of state
+		var t = (state.width - state.height) / 2;
+		bounds.x += t;
+		bounds.y -= t;
+		var tmp = bounds.width;
+		bounds.width = bounds.height;
+		bounds.height = tmp;
+	}
+	
+	// Shape can modify its label bounds
+	if (state.shape != null)
+	{
+		var hpos = mxUtils.getValue(state.style, mxConstants.STYLE_LABEL_POSITION, mxConstants.ALIGN_CENTER);
+		var vpos = mxUtils.getValue(state.style, mxConstants.STYLE_VERTICAL_LABEL_POSITION, mxConstants.ALIGN_MIDDLE);
+		
+		if (hpos == mxConstants.ALIGN_CENTER && vpos == mxConstants.ALIGN_MIDDLE)
+		{
+			bounds = state.shape.getLabelBounds(bounds);
+		}
+	}
+	
+	// Label width style overrides actual label width
+	var lw = mxUtils.getValue(state.style, mxConstants.STYLE_LABEL_WIDTH, null);
+	
+	if (lw != null)
+	{
+		bounds.width = parseFloat(lw) * scale;
+	}
+	
+	if (!isEdge)
+	{
+		this.rotateLabelBounds(state, bounds);
+	}
+	
+	return bounds;
+};
+
+/**
+ * Function: rotateLabelBounds
+ * 
+ * Adds the shape rotation to the given label bounds and
+ * applies the alignment and offsets.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose label bounds should be rotated.
+ * bounds - <mxRectangle> the rectangle to be rotated.
+ */
+mxCellRenderer.prototype.rotateLabelBounds = function(state, bounds)
+{
+	bounds.y -= state.text.margin.y * bounds.height;
+	bounds.x -= state.text.margin.x * bounds.width;
+	
+	if (!this.legacySpacing || (state.style[mxConstants.STYLE_OVERFLOW] != 'fill' && state.style[mxConstants.STYLE_OVERFLOW] != 'width'))
+	{
+		var s = state.view.scale;
+		var spacing = state.text.getSpacing();
+		bounds.x += spacing.x * s;
+		bounds.y += spacing.y * s;
+		
+		var hpos = mxUtils.getValue(state.style, mxConstants.STYLE_LABEL_POSITION, mxConstants.ALIGN_CENTER);
+		var vpos = mxUtils.getValue(state.style, mxConstants.STYLE_VERTICAL_LABEL_POSITION, mxConstants.ALIGN_MIDDLE);
+		var lw = mxUtils.getValue(state.style, mxConstants.STYLE_LABEL_WIDTH, null);
+		
+		bounds.width = Math.max(0, bounds.width - ((hpos == mxConstants.ALIGN_CENTER && lw == null) ? (state.text.spacingLeft * s + state.text.spacingRight * s) : 0));
+		bounds.height = Math.max(0, bounds.height - ((vpos == mxConstants.ALIGN_MIDDLE) ? (state.text.spacingTop * s + state.text.spacingBottom * s) : 0));
+	}
+
+	var theta = state.text.getTextRotation();
+
+	// Only needed if rotated around another center
+	if (theta != 0 && state != null && state.view.graph.model.isVertex(state.cell))
+	{
+		var cx = state.getCenterX();
+		var cy = state.getCenterY();
+		
+		if (bounds.x != cx || bounds.y != cy)
+		{
+			var rad = theta * (Math.PI / 180);
+			pt = mxUtils.getRotatedPoint(new mxPoint(bounds.x, bounds.y),
+					Math.cos(rad), Math.sin(rad), new mxPoint(cx, cy));
+			
+			bounds.x = pt.x;
+			bounds.y = pt.y;
+		}
+	}
+};
+
+/**
+ * Function: redrawCellOverlays
+ * 
+ * Redraws the overlays for the given cell state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose overlays should be redrawn.
+ */
+mxCellRenderer.prototype.redrawCellOverlays = function(state, forced)
+{
+	this.createCellOverlays(state);
+
+	if (state.overlays != null)
+	{
+		var rot = mxUtils.mod(mxUtils.getValue(state.style, mxConstants.STYLE_ROTATION, 0), 90);
+        var rad = mxUtils.toRadians(rot);
+        var cos = Math.cos(rad);
+        var sin = Math.sin(rad);
+		
+		state.overlays.visit(function(id, shape)
+		{
+			var bounds = shape.overlay.getBounds(state);
+		
+			if (!state.view.graph.getModel().isEdge(state.cell))
+			{
+				if (state.shape != null && rot != 0)
+				{
+					var cx = bounds.getCenterX();
+					var cy = bounds.getCenterY();
+
+					var point = mxUtils.getRotatedPoint(new mxPoint(cx, cy), cos, sin,
+			        		new mxPoint(state.getCenterX(), state.getCenterY()));
+
+			        cx = point.x;
+			        cy = point.y;
+			        bounds.x = Math.round(cx - bounds.width / 2);
+			        bounds.y = Math.round(cy - bounds.height / 2);
+				}
+			}
+			
+			if (forced || shape.bounds == null || shape.scale != state.view.scale ||
+				!shape.bounds.equals(bounds))
+			{
+				shape.bounds = bounds;
+				shape.scale = state.view.scale;
+				shape.redraw();
+			}
+		});
+	}
+};
+
+/**
+ * Function: redrawControl
+ * 
+ * Redraws the control for the given cell state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose control should be redrawn.
+ */
+mxCellRenderer.prototype.redrawControl = function(state, forced)
+{
+	var image = state.view.graph.getFoldingImage(state);
+	
+	if (state.control != null && image != null)
+	{
+		var bounds = this.getControlBounds(state, image.width, image.height);
+		var r = (this.legacyControlPosition) ?
+				mxUtils.getValue(state.style, mxConstants.STYLE_ROTATION, 0) :
+				state.shape.getTextRotation();
+		var s = state.view.scale;
+		
+		if (forced || state.control.scale != s || !state.control.bounds.equals(bounds) ||
+			state.control.rotation != r)
+		{
+			state.control.rotation = r;
+			state.control.bounds = bounds;
+			state.control.scale = s;
+			
+			state.control.redraw();
+		}
+	}
+};
+
+/**
+ * Function: getControlBounds
+ * 
+ * Returns the bounds to be used to draw the control (folding icon) of the
+ * given state.
+ */
+mxCellRenderer.prototype.getControlBounds = function(state, w, h)
+{
+	if (state.control != null)
+	{
+		var s = state.view.scale;
+		var cx = state.getCenterX();
+		var cy = state.getCenterY();
+	
+		if (!state.view.graph.getModel().isEdge(state.cell))
+		{
+			cx = state.x + w * s;
+			cy = state.y + h * s;
+			
+			if (state.shape != null)
+			{
+				// TODO: Factor out common code
+				var rot = state.shape.getShapeRotation();
+				
+				if (this.legacyControlPosition)
+				{
+					rot = mxUtils.getValue(state.style, mxConstants.STYLE_ROTATION, 0);
+				}
+				else
+				{
+					if (state.shape.isPaintBoundsInverted())
+					{
+						var t = (state.width - state.height) / 2;
+						cx += t;
+						cy -= t;
+					}
+				}
+				
+				if (rot != 0)
+				{
+			        var rad = mxUtils.toRadians(rot);
+			        var cos = Math.cos(rad);
+			        var sin = Math.sin(rad);
+			        
+			        var point = mxUtils.getRotatedPoint(new mxPoint(cx, cy), cos, sin,
+			        		new mxPoint(state.getCenterX(), state.getCenterY()));
+			        cx = point.x;
+			        cy = point.y;
+				}
+			}
+		}
+		
+		return (state.view.graph.getModel().isEdge(state.cell)) ? 
+			new mxRectangle(Math.round(cx - w / 2 * s), Math.round(cy - h / 2 * s), Math.round(w * s), Math.round(h * s))
+			: new mxRectangle(Math.round(cx - w / 2 * s), Math.round(cy - h / 2 * s), Math.round(w * s), Math.round(h * s));
+	}
+	
+	return null;
+};
+
+/**
+ * Function: insertStateAfter
+ * 
+ * Inserts the given array of <mxShapes> after the given nodes in the DOM.
+ * 
+ * Parameters:
+ * 
+ * shapes - Array of <mxShapes> to be inserted.
+ * node - Node in <drawPane> after which the shapes should be inserted.
+ * htmlNode - Node in the graph container after which the shapes should be inserted that
+ * will not go into the <drawPane> (eg. HTML labels without foreignObjects).
+ */
+mxCellRenderer.prototype.insertStateAfter = function(state, node, htmlNode)
+{
+	var shapes = this.getShapesForState(state);
+	
+	for (var i = 0; i < shapes.length; i++)
+	{
+		if (shapes[i] != null && shapes[i].node != null)
+		{
+			var html = shapes[i].node.parentNode != state.view.getDrawPane() &&
+				shapes[i].node.parentNode != state.view.getOverlayPane();
+			var temp = (html) ? htmlNode : node;
+			
+			if (temp != null && temp.nextSibling != shapes[i].node)
+			{
+				if (temp.nextSibling == null)
+				{
+					temp.parentNode.appendChild(shapes[i].node);
+				}
+				else
+				{
+					temp.parentNode.insertBefore(shapes[i].node, temp.nextSibling);
+				}
+			}
+			else if (temp == null)
+			{
+				// Special case: First HTML node should be first sibling after canvas
+				if (shapes[i].node.parentNode == state.view.graph.container)
+				{
+					var canvas = state.view.canvas;
+					
+					while (canvas != null && canvas.parentNode != state.view.graph.container)
+					{
+						canvas = canvas.parentNode;
+					}
+					
+					if (canvas != null && canvas.nextSibling != null)
+					{
+						if (canvas.nextSibling != shapes[i].node)
+						{
+							shapes[i].node.parentNode.insertBefore(shapes[i].node, canvas.nextSibling);
+						}
+					}
+					else
+					{
+						shapes[i].node.parentNode.appendChild(shapes[i].node);
+					}
+				}
+				else if (shapes[i].node.parentNode.firstChild != null && shapes[i].node.parentNode.firstChild != shapes[i].node)
+				{
+					// Inserts the node as the first child of the parent to implement the order
+					shapes[i].node.parentNode.insertBefore(shapes[i].node, shapes[i].node.parentNode.firstChild);
+				}
+			}
+			
+			if (html)
+			{
+				htmlNode = shapes[i].node;
+			}
+			else
+			{
+				node = shapes[i].node;
+			}
+		}
+	}
+
+	return [node, htmlNode];
+};
+
+/**
+ * Function: getShapesForState
+ * 
+ * Returns the <mxShapes> for the given cell state in the order in which they should
+ * appear in the DOM.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose shapes should be returned.
+ */
+mxCellRenderer.prototype.getShapesForState = function(state)
+{
+	return [state.shape, state.text, state.control];
+};
+
+/**
+ * Function: redraw
+ * 
+ * Updates the bounds or points and scale of the shapes for the given cell
+ * state. This is called in mxGraphView.validatePoints as the last step of
+ * updating all cells.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the shapes should be updated.
+ * force - Optional boolean that specifies if the cell should be reconfiured
+ * and redrawn without any additional checks.
+ * rendering - Optional boolean that specifies if the cell should actually
+ * be drawn into the DOM. If this is false then redraw and/or reconfigure
+ * will not be called on the shape.
+ */
+mxCellRenderer.prototype.redraw = function(state, force, rendering)
+{
+	var shapeChanged = this.redrawShape(state, force, rendering);
+	
+	if (state.shape != null && (rendering == null || rendering))
+	{
+		this.redrawLabel(state, shapeChanged);
+		this.redrawCellOverlays(state, shapeChanged);
+		this.redrawControl(state, shapeChanged);
+	}
+};
+
+/**
+ * Function: redrawShape
+ * 
+ * Redraws the shape for the given cell state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> whose label should be redrawn.
+ */
+mxCellRenderer.prototype.redrawShape = function(state, force, rendering)
+{
+	var model = state.view.graph.model;
+	var shapeChanged = false;
+
+	// Forces creation of new shape if shape style has changed
+	if (state.shape != null && state.shape.style != null && state.style != null &&
+		state.shape.style[mxConstants.STYLE_SHAPE] != state.style[mxConstants.STYLE_SHAPE])
+	{
+		state.shape.destroy();
+		state.shape = null;
+	}
+	
+	if (state.shape == null && state.view.graph.container != null &&
+		state.cell != state.view.currentRoot &&
+		(model.isVertex(state.cell) || model.isEdge(state.cell)))
+	{
+		state.shape = this.createShape(state);
+		
+		if (state.shape != null)
+		{
+			state.shape.antiAlias = this.antiAlias;
+	
+			this.createIndicatorShape(state);
+			this.initializeShape(state);
+			this.createCellOverlays(state);
+			this.installListeners(state);
+			
+			// Forces a refresh of the handler of one exists
+			state.view.graph.selectionCellsHandler.updateHandler(state);
+		}
+	}
+	else if (state.shape != null && !mxUtils.equalEntries(state.shape.style, state.style))
+	{
+		state.shape.resetStyles();
+		this.configureShape(state);
+		// LATER: Ignore update for realtime to fix reset of current gesture
+		state.view.graph.selectionCellsHandler.updateHandler(state);
+		force = true;
+	}
+
+	if (state.shape != null)
+	{
+		// Handles changes of the collapse icon
+		this.createControl(state);
+		
+		// Redraws the cell if required, ignores changes to bounds if points are
+		// defined as the bounds are updated for the given points inside the shape
+		if (force || state.shape.bounds == null || state.shape.scale != state.view.scale ||
+			(state.absolutePoints == null && !state.shape.bounds.equals(state)) ||
+			(state.absolutePoints != null && !mxUtils.equalPoints(state.shape.points, state.absolutePoints)))
+		{
+			if (state.absolutePoints != null)
+			{
+				state.shape.points = state.absolutePoints.slice();
+				state.shape.bounds = null;
+			}
+			else
+			{
+				state.shape.points = null;
+				state.shape.bounds = new mxRectangle(state.x, state.y, state.width, state.height);
+			}
+
+			state.shape.scale = state.view.scale;
+			
+			if (rendering == null || rendering)
+			{
+				state.shape.redraw();
+			}
+			else
+			{
+				state.shape.updateBoundingBox();
+			}
+			
+			shapeChanged = true;
+		}
+	}
+
+	return shapeChanged;
+};
+
+/**
+ * Function: destroy
+ * 
+ * Destroys the shapes associated with the given cell state.
+ * 
+ * Parameters:
+ * 
+ * state - <mxCellState> for which the shapes should be destroyed.
+ */
+mxCellRenderer.prototype.destroy = function(state)
+{
+	if (state.shape != null)
+	{
+		if (state.text != null)
+		{		
+			state.text.destroy();
+			state.text = null;
+		}
+		
+		if (state.overlays != null)
+		{
+			state.overlays.visit(function(id, shape)
+			{
+				shape.destroy();
+			});
+			
+			state.overlays = null;
+		}
+
+		if (state.control != null)
+		{
+			state.control.destroy();
+			state.control = null;
+		}
+		
+		state.shape.destroy();
+		state.shape = null;
+	}
+};