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diff --git a/src/js/view/mxStylesheet.js b/src/js/view/mxStylesheet.js
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-/**
- * $Id: mxStylesheet.js,v 1.35 2010-03-26 10:24:58 gaudenz Exp $
- * Copyright (c) 2006-2010, JGraph Ltd
- */
-/**
- * Class: mxStylesheet
- * 
- * Defines the appearance of the cells in a graph. See <putCellStyle> for an
- * example of creating a new cell style. It is recommended to use objects, not
- * arrays for holding cell styles. Existing styles can be cloned using
- * <mxUtils.clone> and turned into a string for debugging using
- * <mxUtils.toString>.
- *
- * Default Styles:
- * 
- * The stylesheet contains two built-in styles, which are used if no style is
- * defined for a cell:
- *
- *   defaultVertex - Default style for vertices
- *   defaultEdge - Default style for edges
- * 
- * Example:
- * 
- * (code)
- * var vertexStyle = stylesheet.getDefaultVertexStyle();
- * vertexStyle[mxConstants.ROUNDED] = true;
- * var edgeStyle = stylesheet.getDefaultEdgeStyle();
- * edgeStyle[mxConstants.STYLE_EDGE] = mxEdgeStyle.EntityRelation;
- * (end)
- * 
- * Modifies the built-in default styles.
- * 
- * To avoid the default style for a cell, add a leading semicolon
- * to the style definition, eg.
- * 
- * (code)
- * ;shadow=1
- * (end)
- * 
- * Removing keys:
- * 
- * For removing a key in a cell style of the form [stylename;|key=value;] the
- * special value none can be used, eg. highlight;fillColor=none
- * 
- * See also the helper methods in mxUtils to modify strings of this format,
- * namely <mxUtils.setStyle>, <mxUtils.indexOfStylename>,
- * <mxUtils.addStylename>, <mxUtils.removeStylename>,
- * <mxUtils.removeAllStylenames> and <mxUtils.setStyleFlag>.
- * 
- * Constructor: mxStylesheet
- * 
- * Constructs a new stylesheet and assigns default styles.
- */
-function mxStylesheet()
-{
-	this.styles = new Object();
-	
-	this.putDefaultVertexStyle(this.createDefaultVertexStyle());
-	this.putDefaultEdgeStyle(this.createDefaultEdgeStyle());
-};
-
-/**
- * Function: styles
- * 
- * Maps from names to cell styles. Each cell style is a map of key,
- * value pairs.
- */
-mxStylesheet.prototype.styles;
-
-/**
- * Function: createDefaultVertexStyle
- * 
- * Creates and returns the default vertex style.
- */
-mxStylesheet.prototype.createDefaultVertexStyle = function()
-{
-	var style = new Object();
-	
-	style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_RECTANGLE;
-	style[mxConstants.STYLE_PERIMETER] = mxPerimeter.RectanglePerimeter;
-	style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_MIDDLE;
-	style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
-	style[mxConstants.STYLE_FILLCOLOR] = '#C3D9FF';
-	style[mxConstants.STYLE_STROKECOLOR] = '#6482B9';
-	style[mxConstants.STYLE_FONTCOLOR] = '#774400';
-	
-	return style;
-};
-
-/**
- * Function: createDefaultEdgeStyle
- * 
- * Creates and returns the default edge style.
- */
-mxStylesheet.prototype.createDefaultEdgeStyle = function()
-{
-	var style = new Object();
-	
-	style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_CONNECTOR;
-	style[mxConstants.STYLE_ENDARROW] = mxConstants.ARROW_CLASSIC;
-	style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_MIDDLE;
-	style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
-	style[mxConstants.STYLE_STROKECOLOR] = '#6482B9';
-	style[mxConstants.STYLE_FONTCOLOR] = '#446299';
-	
-	return style;
-};
-
-/**
- * Function: putDefaultVertexStyle
- * 
- * Sets the default style for vertices using defaultVertex as the
- * stylename.
- * 
- * Parameters:
- * style - Key, value pairs that define the style.
- */
-mxStylesheet.prototype.putDefaultVertexStyle = function(style)
-{
-	this.putCellStyle('defaultVertex', style);
-};
-
-/**
- * Function: putDefaultEdgeStyle
- * 
- * Sets the default style for edges using defaultEdge as the stylename.
- */
-mxStylesheet.prototype.putDefaultEdgeStyle = function(style)
-{
-	this.putCellStyle('defaultEdge', style);
-};
-
-/**
- * Function: getDefaultVertexStyle
- * 
- * Returns the default style for vertices.
- */
-mxStylesheet.prototype.getDefaultVertexStyle = function()
-{
-	return this.styles['defaultVertex'];
-};
-
-/**
- * Function: getDefaultEdgeStyle
- * 
- * Sets the default style for edges.
- */
-mxStylesheet.prototype.getDefaultEdgeStyle = function()
-{
-	return this.styles['defaultEdge'];
-};
-
-/**
- * Function: putCellStyle
- * 
- * Stores the given map of key, value pairs under the given name in
- * <styles>.
- *
- * Example:
- * 
- * The following example adds a new style called 'rounded' into an
- * existing stylesheet:
- * 
- * (code)
- * var style = new Object();
- * style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_RECTANGLE;
- * style[mxConstants.STYLE_PERIMETER] = mxPerimeter.RectanglePerimeter;
- * style[mxConstants.STYLE_ROUNDED] = true;
- * graph.getStylesheet().putCellStyle('rounded', style);
- * (end)
- * 
- * In the above example, the new style is an object. The possible keys of
- * the object are all the constants in <mxConstants> that start with STYLE
- * and the values are either JavaScript objects, such as
- * <mxPerimeter.RightAngleRectanglePerimeter> (which is in fact a function)
- * or expressions, such as true. Note that not all keys will be
- * interpreted by all shapes (eg. the line shape ignores the fill color).
- * The final call to this method associates the style with a name in the
- * stylesheet. The style is used in a cell with the following code:
- * 
- * (code)
- * model.setStyle(cell, 'rounded');
- * (end)
- * 
- * Parameters:
- * 
- * name - Name for the style to be stored.
- * style - Key, value pairs that define the style.
- */
-mxStylesheet.prototype.putCellStyle = function(name, style)
-{
-	this.styles[name] = style;
-};
-
-/**
- * Function: getCellStyle
- * 
- * Returns the cell style for the specified stylename or the given
- * defaultStyle if no style can be found for the given stylename.
- * 
- * Parameters:
- * 
- * name - String of the form [(stylename|key=value);] that represents the
- * style.
- * defaultStyle - Default style to be returned if no style can be found.
- */
-mxStylesheet.prototype.getCellStyle = function(name, defaultStyle)
-{
-	var style = defaultStyle;
-	
-	if (name != null && name.length > 0)
-	{
-		var pairs = name.split(';');
-
-		if (style != null &&
-			name.charAt(0) != ';')
-		{
-			style = mxUtils.clone(style);
-		}
-		else
-		{
-			style = new Object();
-		}
-
-		// Parses each key, value pair into the existing style
-	 	for (var i = 0; i < pairs.length; i++)
-	 	{
-	 		var tmp = pairs[i];
-	 		var pos = tmp.indexOf('=');
-	 		
-	 		if (pos >= 0)
-	 		{
-		 		var key = tmp.substring(0, pos);
-		 		var value = tmp.substring(pos + 1);
-
-		 		if (value == mxConstants.NONE)
-		 		{
-		 			delete style[key];
-		 		}
-		 		else if (mxUtils.isNumeric(value))
-		 		{
-		 			style[key] = parseFloat(value);
-		 		}
-		 		else
-		 		{
-			 		style[key] = value;
-		 		}
-			}
-	 		else
-	 		{
-	 			// Merges the entries from a named style
-				var tmpStyle = this.styles[tmp];
-				
-				if (tmpStyle != null)
-				{
-					for (var key in tmpStyle)
-					{
-						style[key] = tmpStyle[key];
-					}
-				}
-	 		}
-		}
-	}
-	
-	return style;
-};