#

API Docs for: 3.10.3
Show: Inherited Protected Private Deprecated

# File: graphics/js/SVGShape.js

    /**
     * <a href="http://www.w3.org/TR/SVG/">SVG</a> implementation of the <a href="Shape.html">`Shape`</a> class.
     * `SVGShape` is not intended to be used directly. Instead, use the <a href="Shape.html">`Shape`</a> class.
     * If the browser has <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities, the <a href="Shape.html">`Shape`</a>
     * class will point to the `SVGShape` class.
     *
     * @module graphics
     * @class SVGShape
     * @constructor
     * @param {Object} cfg (optional) Attribute configs
     */
    SVGShape = function()
    {
        this._transforms = [];
        this.matrix = new Y.Matrix();
        this._normalizedMatrix = new Y.Matrix();
        SVGShape.superclass.constructor.apply(this, arguments);
    };

    SVGShape.NAME = "shape";

    Y.extend(SVGShape, Y.GraphicBase, Y.mix({
        /**
         * Storage for x attribute.
         *
         * @property _x
         * @protected
         */
        _x: 0,

        /**
         * Storage for y attribute.
         *
         * @property _y
         * @protected
         */
        _y: 0,

        /**
         * Init method, invoked during construction.
         * Calls `initializer` method.
         *
         * @method init
         * @protected
         */
    	init: function()
    	{
    		this.initializer.apply(this, arguments);
    	},

    	/**
    	 * Initializes the shape
    	 *
    	 * @private
    	 * @method initializer
    	 */
    	initializer: function(cfg)
    	{
    		var host = this,
                graphic = cfg.graphic,
                data = this.get("data");
    		host.createNode();
    		if(graphic)
            {
                host._setGraphic(graphic);
            }
            if(data)
            {
                host._parsePathData(data);
            }
            host._updateHandler();
    	},

        /**
         * Set the Graphic instance for the shape.
         *
         * @method _setGraphic
         * @param {Graphic | Node | HTMLElement | String} render This param is used to determine the graphic instance. If it is a
         * `Graphic` instance, it will be assigned to the `graphic` attribute. Otherwise, a new Graphic instance will be created
         * and rendered into the dom element that the render represents.
         * @private
         */
        _setGraphic: function(render)
        {
            var graphic;
            if(render instanceof Y.SVGGraphic)
            {
                this._graphic = render;
            }
            else
            {
                render = Y.one(render);
                graphic = new Y.SVGGraphic({
                    render: render
                });
                graphic._appendShape(this);
                this._graphic = graphic;
            }
        },

    	/**
    	 * Add a class name to each node.
    	 *
    	 * @method addClass
    	 * @param {String} className the class name to add to the node's class attribute
    	 */
    	addClass: function(className)
    	{
            var node = this.node;
    		node.className.baseVal = Y_LANG.trim([node.className.baseVal, className].join(' '));
    	},

    	/**
    	 * Removes a class name from each node.
    	 *
    	 * @method removeClass
    	 * @param {String} className the class name to remove from the node's class attribute
    	 */
    	removeClass: function(className)
    	{
    		var node = this.node,
    			classString = node.className.baseVal;
    		classString = classString.replace(new RegExp(className + ' '), className).replace(new RegExp(className), '');
    		node.className.baseVal = classString;
    	},

    	/**
    	 * Gets the current position of the node in page coordinates.
    	 *
    	 * @method getXY
    	 * @return Array The XY position of the shape.
    	 */
    	getXY: function()
    	{
    		var graphic = this._graphic,
    			parentXY = graphic.getXY(),
    			x = this._x,
    			y = this._y;
    		return [parentXY[0] + x, parentXY[1] + y];
    	},

    	/**
    	 * Set the position of the shape in page coordinates, regardless of how the node is positioned.
    	 *
    	 * @method setXY
    	 * @param {Array} Contains x & y values for new position (coordinates are page-based)
    	 */
    	setXY: function(xy)
    	{
    		var graphic = this._graphic,
    			parentXY = graphic.getXY();
    		this._x = xy[0] - parentXY[0];
    		this._y = xy[1] - parentXY[1];
            this.set("transform", this.get("transform"));
    	},

    	/**
    	 * Determines whether the node is an ancestor of another HTML element in the DOM hierarchy.
    	 *
    	 * @method contains
    	 * @param {SVGShape | HTMLElement} needle The possible node or descendent
    	 * @return Boolean Whether or not this shape is the needle or its ancestor.
    	 */
    	contains: function(needle)
    	{
    		return needle === Y.one(this.node);
    	},

    	/**
    	 * Compares nodes to determine if they match.
    	 * Node instances can be compared to each other and/or HTMLElements.
    	 * @method compareTo
    	 * @param {HTMLElement | Node} refNode The reference node to compare to the node.
    	 * @return {Boolean} True if the nodes match, false if they do not.
    	 */
    	compareTo: function(refNode) {
    		var node = this.node;

    		return node === refNode;
    	},

    	/**
    	 * Test if the supplied node matches the supplied selector.
    	 *
    	 * @method test
    	 * @param {String} selector The CSS selector to test against.
    	 * @return Boolean Wheter or not the shape matches the selector.
    	 */
    	test: function(selector)
    	{
    		return Y.Selector.test(this.node, selector);
    	},

    	/**
    	 * Value function for fill attribute
    	 *
    	 * @private
    	 * @method _getDefaultFill
    	 * @return Object
    	 */
    	_getDefaultFill: function() {
    		return {
    			type: "solid",
    			opacity: 1,
    			cx: 0.5,
    			cy: 0.5,
    			fx: 0.5,
    			fy: 0.5,
    			r: 0.5
    		};
    	},

    	/**
    	 * Value function for stroke attribute
    	 *
    	 * @private
    	 * @method _getDefaultStroke
    	 * @return Object
    	 */
    	_getDefaultStroke: function()
    	{
    		return {
    			weight: 1,
    			dashstyle: "none",
    			color: "#000",
    			opacity: 1.0
    		};
    	},

    	/**
    	 * Creates the dom node for the shape.
    	 *
         * @method createNode
    	 * @return HTMLElement
    	 * @private
    	 */
    	createNode: function()
    	{
    		var host = this,
                node = DOCUMENT.createElementNS("http://www.w3.org/2000/svg", "svg:" + this._type),
    			id = host.get("id"),
                name = host.name,
                concat = host._camelCaseConcat,
    			pointerEvents = host.get("pointerEvents");
    		host.node = node;
    		host.addClass(
                _getClassName(SHAPE) +
                " " +
                _getClassName(concat(IMPLEMENTATION, SHAPE)) +
                " " +
                _getClassName(name) +
                " " +
                _getClassName(concat(IMPLEMENTATION, name))
            );
            if(id)
    		{
    			node.setAttribute("id", id);
    		}
    		if(pointerEvents)
    		{
    			node.setAttribute("pointer-events", pointerEvents);
    		}
            if(!host.get("visible"))
            {
                Y.one(node).setStyle("visibility", "hidden");
            }
    	},

    	/**
         * Overrides default `on` method. Checks to see if its a dom interaction event. If so,
         * return an event attached to the `node` element. If not, return the normal functionality.
         *
         * @method on
         * @param {String} type event type
         * @param {Object} callback function
    	 * @private
    	 */
    	on: function(type, fn)
    	{
    		if(Y.Node.DOM_EVENTS[type])
    		{
    			return Y.one("#" +  this.get("id")).on(type, fn);
    		}
    		return Y.on.apply(this, arguments);
    	},

    	/**
    	 * Adds a stroke to the shape node.
    	 *
    	 * @method _strokeChangeHandler
    	 * @private
    	 */
    	_strokeChangeHandler: function()
    	{
    		var node = this.node,
    			stroke = this.get("stroke"),
    			strokeOpacity,
    			dashstyle,
    			dash,
    			linejoin;
    		if(stroke && stroke.weight && stroke.weight > 0)
    		{
    			linejoin = stroke.linejoin || "round";
    			strokeOpacity = parseFloat(stroke.opacity);
    			dashstyle = stroke.dashstyle || "none";
    			dash = Y_LANG.isArray(dashstyle) ? dashstyle.toString() : dashstyle;
    			stroke.color = stroke.color || "#000000";
    			stroke.weight = stroke.weight || 1;
    			stroke.opacity = Y_LANG.isNumber(strokeOpacity) ? strokeOpacity : 1;
    			stroke.linecap = stroke.linecap || "butt";
    			node.setAttribute("stroke-dasharray", dash);
    			node.setAttribute("stroke", stroke.color);
    			node.setAttribute("stroke-linecap", stroke.linecap);
    			node.setAttribute("stroke-width",  stroke.weight);
    			node.setAttribute("stroke-opacity", stroke.opacity);
    			if(linejoin === "round" || linejoin === "bevel")
    			{
    				node.setAttribute("stroke-linejoin", linejoin);
    			}
    			else
    			{
    				linejoin = parseInt(linejoin, 10);
    				if(Y_LANG.isNumber(linejoin))
    				{
    					node.setAttribute("stroke-miterlimit",  Math.max(linejoin, 1));
    					node.setAttribute("stroke-linejoin", "miter");
    				}
    			}
    		}
    		else
    		{
    			node.setAttribute("stroke", "none");
    		}
    	},

    	/**
    	 * Adds a fill to the shape node.
    	 *
    	 * @method _fillChangeHandler
    	 * @private
    	 */
    	_fillChangeHandler: function()
    	{
    		var node = this.node,
    			fill = this.get("fill"),
    			fillOpacity,
    			type;
    		if(fill)
    		{
    			type = fill.type;
    			if(type === "linear" || type === "radial")
    			{
    				this._setGradientFill(fill);
    				node.setAttribute("fill", "url(#grad" + this.get("id") + ")");
    			}
    			else if(!fill.color)
    			{
    				node.setAttribute("fill", "none");
    			}
    			else
    			{
                    fillOpacity = parseFloat(fill.opacity);
    				fillOpacity = Y_LANG.isNumber(fillOpacity) ? fillOpacity : 1;
    				node.setAttribute("fill", fill.color);
    				node.setAttribute("fill-opacity", fillOpacity);
    			}
    		}
    		else
    		{
    			node.setAttribute("fill", "none");
    		}
    	},

    	/**
    	 * Creates a gradient fill
    	 *
    	 * @method _setGradientFill
    	 * @param {String} type gradient type
    	 * @private
    	 */
    	_setGradientFill: function(fill) {
    		var offset,
    			opacity,
    			color,
    			stopNode,
                newStop,
    			isNumber = Y_LANG.isNumber,
    			graphic = this._graphic,
    			type = fill.type,
    			gradientNode = graphic.getGradientNode("grad" + this.get("id"), type),
    			stops = fill.stops,
    			w = this.get("width"),
    			h = this.get("height"),
    			rotation = fill.rotation || 0,
    			radCon = Math.PI/180,
                tanRadians = parseFloat(parseFloat(Math.tan(rotation * radCon)).toFixed(8)),
                i,
    			len,
    			def,
    			stop,
    			x1 = "0%",
    			x2 = "100%",
    			y1 = "0%",
    			y2 = "0%",
    			cx = fill.cx,
    			cy = fill.cy,
    			fx = fill.fx,
    			fy = fill.fy,
    			r = fill.r,
                stopNodes = [];
    		if(type === "linear")
    		{
                cx = w/2;
                cy = h/2;
                if(Math.abs(tanRadians) * w/2 >= h/2)
                {
                    if(rotation < 180)
                    {
                        y1 = 0;
                        y2 = h;
                    }
                    else
                    {
                        y1 = h;
                        y2 = 0;
                    }
                    x1 = cx - ((cy - y1)/tanRadians);
                    x2 = cx - ((cy - y2)/tanRadians);
                }
                else
                {
                    if(rotation > 90 && rotation < 270)
                    {
                        x1 = w;
                        x2 = 0;
                    }
                    else
                    {
                        x1 = 0;
                        x2 = w;
                    }
                    y1 = ((tanRadians * (cx - x1)) - cy) * -1;
                    y2 = ((tanRadians * (cx - x2)) - cy) * -1;
                }

                x1 = Math.round(100 * x1/w);
                x2 = Math.round(100 * x2/w);
                y1 = Math.round(100 * y1/h);
                y2 = Math.round(100 * y2/h);

                //Set default value if not valid
                x1 = isNumber(x1) ? x1 : 0;
                x2 = isNumber(x2) ? x2 : 100;
                y1 = isNumber(y1) ? y1 : 0;
                y2 = isNumber(y2) ? y2 : 0;

                gradientNode.setAttribute("spreadMethod", "pad");
    			gradientNode.setAttribute("width", w);
    			gradientNode.setAttribute("height", h);
                gradientNode.setAttribute("x1", x1 + "%");
                gradientNode.setAttribute("x2", x2 + "%");
                gradientNode.setAttribute("y1", y1 + "%");
                gradientNode.setAttribute("y2", y2 + "%");
    		}
    		else
    		{
    			gradientNode.setAttribute("cx", (cx * 100) + "%");
    			gradientNode.setAttribute("cy", (cy * 100) + "%");
    			gradientNode.setAttribute("fx", (fx * 100) + "%");
    			gradientNode.setAttribute("fy", (fy * 100) + "%");
    			gradientNode.setAttribute("r", (r * 100) + "%");
    		}

    		len = stops.length;
    		def = 0;
            for(i = 0; i < len; ++i)
    		{
                if(this._stops && this._stops.length > 0)
                {
                    stopNode = this._stops.shift();
                    newStop = false;
                }
                else
                {
                    stopNode = graphic._createGraphicNode("stop");
                    newStop = true;
                }
    			stop = stops[i];
    			opacity = stop.opacity;
    			color = stop.color;
    			offset = stop.offset || i/(len - 1);
    			offset = Math.round(offset * 100) + "%";
    			opacity = isNumber(opacity) ? opacity : 1;
    			opacity = Math.max(0, Math.min(1, opacity));
    			def = (i + 1) / len;
    			stopNode.setAttribute("offset", offset);
    			stopNode.setAttribute("stop-color", color);
    			stopNode.setAttribute("stop-opacity", opacity);
    			if(newStop)
                {
                    gradientNode.appendChild(stopNode);
                }
                stopNodes.push(stopNode);
    		}
            while(this._stops && this._stops.length > 0)
            {
                gradientNode.removeChild(this._stops.shift());
            }
            this._stops = stopNodes;
    	},

        _stops: null,

        /**
         * Sets the value of an attribute.
         *
         * @method set
         * @param {String|Object} name The name of the attribute. Alternatively, an object of key value pairs can
         * be passed in to set multiple attributes at once.
         * @param {Any} value The value to set the attribute to. This value is ignored if an object is received as
         * the name param.
         */
    	set: function()
    	{
    		var host = this;
    		AttributeLite.prototype.set.apply(host, arguments);
    		if(host.initialized)
    		{
    			host._updateHandler();
    		}
    	},

    	/**
    	 * Specifies a 2d translation.
    	 *
    	 * @method translate
    	 * @param {Number} x The value to transate on the x-axis.
    	 * @param {Number} y The value to translate on the y-axis.
    	 */
    	translate: function()
    	{
    		this._addTransform("translate", arguments);
    	},

    	/**
    	 * Translates the shape along the x-axis. When translating x and y coordinates,
    	 * use the `translate` method.
    	 *
    	 * @method translateX
    	 * @param {Number} x The value to translate.
    	 */
    	translateX: function()
        {
            this._addTransform("translateX", arguments);
        },

    	/**
    	 * Translates the shape along the y-axis. When translating x and y coordinates,
    	 * use the `translate` method.
    	 *
    	 * @method translateY
    	 * @param {Number} y The value to translate.
    	 */
    	translateY: function()
        {
            this._addTransform("translateY", arguments);
        },

        /**
         * Skews the shape around the x-axis and y-axis.
         *
         * @method skew
         * @param {Number} x The value to skew on the x-axis.
         * @param {Number} y The value to skew on the y-axis.
         */
        skew: function()
        {
            this._addTransform("skew", arguments);
        },

    	/**
    	 * Skews the shape around the x-axis.
    	 *
    	 * @method skewX
    	 * @param {Number} x x-coordinate
    	 */
        skewX: function()
        {
            this._addTransform("skewX", arguments);
        },

    	/**
    	 * Skews the shape around the y-axis.
    	 *
    	 * @method skewY
    	 * @param {Number} y y-coordinate
    	 */
        skewY: function()
        {
            this._addTransform("skewY", arguments);
        },

    	/**
    	 * Rotates the shape clockwise around it transformOrigin.
    	 *
    	 * @method rotate
    	 * @param {Number} deg The degree of the rotation.
    	 */
        rotate: function()
        {
            this._addTransform("rotate", arguments);
        },

    	/**
    	 * Specifies a 2d scaling operation.
    	 *
    	 * @method scale
    	 * @param {Number} val
    	 */
        scale: function()
        {
            this._addTransform("scale", arguments);
        },

        /**
         * Adds a transform to the shape.
         *
         * @method _addTransform
         * @param {String} type The transform being applied.
         * @param {Array} args The arguments for the transform.
    	 * @private
    	 */
    	_addTransform: function(type, args)
    	{
            args = Y.Array(args);
            this._transform = Y_LANG.trim(this._transform + " " + type + "(" + args.join(", ") + ")");
            args.unshift(type);
            this._transforms.push(args);
            if(this.initialized)
            {
                this._updateTransform();
            }
    	},

    	/**
         * Applies all transforms.
         *
         * @method _updateTransform
    	 * @private
    	 */
    	_updateTransform: function()
    	{
    		var isPath = this._type === "path",
                node = this.node,
    			key,
    			transform,
    			transformOrigin,
    			x,
    			y,
                tx,
                ty,
                matrix = this.matrix,
                normalizedMatrix = this._normalizedMatrix,
                i,
                len = this._transforms.length;

            if(isPath || (this._transforms && this._transforms.length > 0))
    		{
                x = this._x;
                y = this._y;
                transformOrigin = this.get("transformOrigin");
                tx = x + (transformOrigin[0] * this.get("width"));
                ty = y + (transformOrigin[1] * this.get("height"));
                //need to use translate for x/y coords
                if(isPath)
                {
                    //adjust origin for custom shapes
                    if(!(this instanceof Y.SVGPath))
                    {
                        tx = this._left + (transformOrigin[0] * this.get("width"));
                        ty = this._top + (transformOrigin[1] * this.get("height"));
                    }
                    normalizedMatrix.init({dx: x + this._left, dy: y + this._top});
                }
                normalizedMatrix.translate(tx, ty);
                for(i = 0; i < len; ++i)
                {
                    key = this._transforms[i].shift();
                    if(key)
                    {
                        normalizedMatrix[key].apply(normalizedMatrix, this._transforms[i]);
                        matrix[key].apply(matrix, this._transforms[i]);
                    }
                    if(isPath)
                    {
                        this._transforms[i].unshift(key);
                    }
    			}
                normalizedMatrix.translate(-tx, -ty);
                transform = "matrix(" + normalizedMatrix.a + "," +
                                normalizedMatrix.b + "," +
                                normalizedMatrix.c + "," +
                                normalizedMatrix.d + "," +
                                normalizedMatrix.dx + "," +
                                normalizedMatrix.dy + ")";
    		}
            this._graphic.addToRedrawQueue(this);
            if(transform)
    		{
                node.setAttribute("transform", transform);
            }
            if(!isPath)
            {
                this._transforms = [];
            }
    	},

    	/**
    	 * Draws the shape.
    	 *
    	 * @method _draw
    	 * @private
    	 */
    	_draw: function()
    	{
    		var node = this.node;
    		node.setAttribute("width", this.get("width"));
    		node.setAttribute("height", this.get("height"));
    		node.setAttribute("x", this._x);
    		node.setAttribute("y", this._y);
    		node.style.left = this._x + "px";
    		node.style.top = this._y + "px";
    		this._fillChangeHandler();
    		this._strokeChangeHandler();
    		this._updateTransform();
    	},

    	/**
         * Updates `Shape` based on attribute changes.
         *
         * @method _updateHandler
    	 * @private
    	 */
    	_updateHandler: function()
    	{
    		this._draw();
    	},

        /**
         * Storage for the transform attribute.
         *
         * @property _transform
         * @type String
         * @private
         */
        _transform: "",

    	/**
    	 * Returns the bounds for a shape.
    	 *
         * Calculates the a new bounding box from the original corner coordinates (base on size and position) and the transform matrix.
         * The calculated bounding box is used by the graphic instance to calculate its viewBox.
         *
    	 * @method getBounds
    	 * @return Object
    	 */
    	getBounds: function()
    	{
    		var type = this._type,
    			stroke = this.get("stroke"),
                w = this.get("width"),
    			h = this.get("height"),
    			x = type === "path" ? 0 : this._x,
    			y = type === "path" ? 0 : this._y,
                wt = 0;
            if(type !== "path")
            {
                if(stroke && stroke.weight)
                {
                    wt = stroke.weight;
                }
                w = (x + w + wt) - (x - wt);
                h = (y + h + wt) - (y - wt);
                x -= wt;
                y -= wt;
            }
    		return this._normalizedMatrix.getContentRect(w, h, x, y);
    	},

        /**
         * Places the shape above all other shapes.
         *
         * @method toFront
         */
        toFront: function()
        {
            var graphic = this.get("graphic");
            if(graphic)
            {
                graphic._toFront(this);
            }
        },

        /**
         * Places the shape underneath all other shapes.
         *
         * @method toFront
         */
        toBack: function()
        {
            var graphic = this.get("graphic");
            if(graphic)
            {
                graphic._toBack(this);
            }
        },

        /**
         * Parses path data string and call mapped methods.
         *
         * @method _parsePathData
         * @param {String} val The path data
         * @private
         */
        _parsePathData: function(val)
        {
            var method,
                methodSymbol,
                args,
                commandArray = Y.Lang.trim(val.match(SPLITPATHPATTERN)),
                i,
                len,
                str,
                symbolToMethod = this._pathSymbolToMethod;
            if(commandArray)
            {
                this.clear();
                len = commandArray.length || 0;
                for(i = 0; i < len; i = i + 1)
                {
                    str = commandArray[i];
                    methodSymbol = str.substr(0, 1);
                    args = str.substr(1).match(SPLITARGSPATTERN);
                    method = symbolToMethod[methodSymbol];
                    if(method)
                    {
                        if(args)
                        {
                            this[method].apply(this, args);
                        }
                        else
                        {
                            this[method].apply(this);
                        }
                    }
                }
                this.end();
            }
        },

        /**
         * Destroys the shape instance.
         *
         * @method destroy
         */
        destroy: function()
        {
            var graphic = this.get("graphic");
            if(graphic)
            {
                graphic.removeShape(this);
            }
            else
            {
                this._destroy();
            }
        },

        /**
         *  Implementation for shape destruction
         *
         *  @method destroy
         *  @protected
         */
        _destroy: function()
        {
            if(this.node)
            {
                Y.Event.purgeElement(this.node, true);
                if(this.node.parentNode)
                {
                    this.node.parentNode.removeChild(this.node);
                }
                this.node = null;
            }
        }
     }, Y.SVGDrawing.prototype));

    SVGShape.ATTRS = {
    	/**
    	 * An array of x, y values which indicates the transformOrigin in which to rotate the shape. Valid values range between 0 and 1 representing a
    	 * fraction of the shape's corresponding bounding box dimension. The default value is [0.5, 0.5].
    	 *
    	 * @config transformOrigin
    	 * @type Array
    	 */
    	transformOrigin: {
    		valueFn: function()
    		{
    			return [0.5, 0.5];
    		}
    	},

        /**
         * <p>A string containing, in order, transform operations applied to the shape instance. The `transform` string can contain the following values:
         *
         *    <dl>
         *        <dt>rotate</dt><dd>Rotates the shape clockwise around it transformOrigin.</dd>
         *        <dt>translate</dt><dd>Specifies a 2d translation.</dd>
         *        <dt>skew</dt><dd>Skews the shape around the x-axis and y-axis.</dd>
         *        <dt>scale</dt><dd>Specifies a 2d scaling operation.</dd>
         *        <dt>translateX</dt><dd>Translates the shape along the x-axis.</dd>
         *        <dt>translateY</dt><dd>Translates the shape along the y-axis.</dd>
         *        <dt>skewX</dt><dd>Skews the shape around the x-axis.</dd>
         *        <dt>skewY</dt><dd>Skews the shape around the y-axis.</dd>
         *        <dt>matrix</dt><dd>Specifies a 2D transformation matrix comprised of the specified six values.</dd>
         *    </dl>
         * </p>
         * <p>Applying transforms through the transform attribute will reset the transform matrix and apply a new transform. The shape class also contains
         * corresponding methods for each transform that will apply the transform to the current matrix. The below code illustrates how you might use the
         * `transform` attribute to instantiate a recangle with a rotation of 45 degrees.</p>
                var myRect = new Y.Rect({
                    type:"rect",
                    width: 50,
                    height: 40,
                    transform: "rotate(45)"
                };
         * <p>The code below would apply `translate` and `rotate` to an existing shape.</p>

            myRect.set("transform", "translate(40, 50) rotate(45)");
    	 * @config transform
         * @type String
    	 */
    	transform: {
    		setter: function(val)
            {
                this.matrix.init();
                this._normalizedMatrix.init();
                this._transforms = this.matrix.getTransformArray(val);
                this._transform = val;
                return val;
    		},

            getter: function()
            {
                return this._transform;
            }
    	},

    	/**
    	 * Unique id for class instance.
    	 *
    	 * @config id
    	 * @type String
    	 */
    	id: {
    		valueFn: function()
    		{
    			return Y.guid();
    		},

    		setter: function(val)
    		{
    			var node = this.node;
    			if(node)
    			{
    				node.setAttribute("id", val);
    			}
    			return val;
    		}
    	},

    	/**
    	 * Indicates the x position of shape.
    	 *
    	 * @config x
    	 * @type Number
    	 */
    	x: {
            getter: function()
            {
                return this._x;
            },

            setter: function(val)
            {
                var transform = this.get("transform");
                this._x = val;
                if(transform)
                {
                    this.set("transform", transform);
                }
            }
    	},

    	/**
    	 * Indicates the y position of shape.
    	 *
    	 * @config y
    	 * @type Number
    	 */
    	y: {
            getter: function()
            {
                return this._y;
            },

            setter: function(val)
            {
                var transform = this.get("transform");
                this._y = val;
                if(transform)
                {
                    this.set("transform", transform);
                }
            }
    	},

    	/**
    	 * Indicates the width of the shape
    	 *
    	 * @config width
    	 * @type Number
    	 */
    	width: {
            value: 0
        },

    	/**
    	 * Indicates the height of the shape
    	 *
    	 * @config height
    	 * @type Number
    	 */
    	height: {
            value: 0
        },

    	/**
    	 * Indicates whether the shape is visible.
    	 *
    	 * @config visible
    	 * @type Boolean
    	 */
    	visible: {
    		value: true,

    		setter: function(val){
    			var visibility = val ? "visible" : "hidden";
    			if(this.node)
                {
                    this.node.style.visibility = visibility;
                }
    			return val;
    		}
    	},

    	/**
    	 * Contains information about the fill of the shape.
         *  <dl>
         *      <dt>color</dt><dd>The color of the fill.</dd>
         *      <dt>opacity</dt><dd>Number between 0 and 1 that indicates the opacity of the fill. The default value is 1.</dd>
         *      <dt>type</dt><dd>Type of fill.
         *          <dl>
         *              <dt>solid</dt><dd>Solid single color fill. (default)</dd>
         *              <dt>linear</dt><dd>Linear gradient fill.</dd>
         *              <dt>radial</dt><dd>Radial gradient fill.</dd>
         *          </dl>
         *      </dd>
         *  </dl>
         *  <p>If a `linear` or `radial` is specified as the fill type. The following additional property is used:
         *  <dl>
         *      <dt>stops</dt><dd>An array of objects containing the following properties:
         *          <dl>
         *              <dt>color</dt><dd>The color of the stop.</dd>
         *              <dt>opacity</dt><dd>Number between 0 and 1 that indicates the opacity of the stop. The default value is 1.
         *              Note: No effect for IE 6 - 8</dd>
         *              <dt>offset</dt><dd>Number between 0 and 1 indicating where the color stop is positioned.</dd>
         *          </dl>
         *      </dd>
         *      <p>Linear gradients also have the following property:</p>
         *      <dt>rotation</dt><dd>Linear gradients flow left to right by default. The rotation property allows you to change the
         *      flow by rotation. (e.g. A rotation of 180 would make the gradient pain from right to left.)</dd>
         *      <p>Radial gradients have the following additional properties:</p>
         *      <dt>r</dt><dd>Radius of the gradient circle.</dd>
         *      <dt>fx</dt><dd>Focal point x-coordinate of the gradient.</dd>
         *      <dt>fy</dt><dd>Focal point y-coordinate of the gradient.</dd>
         *      <dt>cx</dt><dd>
         *          <p>The x-coordinate of the center of the gradient circle. Determines where the color stop begins. The default value 0.5.</p>
         *          <p><strong>Note: </strong>Currently, this property is not implemented for corresponding `CanvasShape` and
         *          `VMLShape` classes which are used on Android or IE 6 - 8.</p>
         *      </dd>
         *      <dt>cy</dt><dd>
         *          <p>The y-coordinate of the center of the gradient circle. Determines where the color stop begins. The default value 0.5.</p>
         *          <p><strong>Note: </strong>Currently, this property is not implemented for corresponding `CanvasShape` and `VMLShape`
         *          classes which are used on Android or IE 6 - 8.</p>
         *      </dd>
         *  </dl>
    	 *
    	 * @config fill
    	 * @type Object
    	 */
    	fill: {
    		valueFn: "_getDefaultFill",

    		setter: function(val)
    		{
    			var fill,
    				tmpl = this.get("fill") || this._getDefaultFill();
    			fill = (val) ? Y.merge(tmpl, val) : null;
    			if(fill && fill.color)
    			{
    				if(fill.color === undefined || fill.color === "none")
    				{
    					fill.color = null;
    				}
    			}
    			return fill;
    		}
    	},

    	/**
    	 * Contains information about the stroke of the shape.
         *  <dl>
         *      <dt>color</dt><dd>The color of the stroke.</dd>
         *      <dt>weight</dt><dd>Number that indicates the width of the stroke.</dd>
         *      <dt>opacity</dt><dd>Number between 0 and 1 that indicates the opacity of the stroke. The default value is 1.</dd>
         *      <dt>dashstyle</dt>Indicates whether to draw a dashed stroke. When set to "none", a solid stroke is drawn. When set
         *      to an array, the first index indicates the length of the dash. The second index indicates the length of gap.
         *      <dt>linecap</dt><dd>Specifies the linecap for the stroke. The following values can be specified:
         *          <dl>
         *              <dt>butt (default)</dt><dd>Specifies a butt linecap.</dd>
         *              <dt>square</dt><dd>Specifies a sqare linecap.</dd>
         *              <dt>round</dt><dd>Specifies a round linecap.</dd>
         *          </dl>
         *      </dd>
         *      <dt>linejoin</dt><dd>Specifies a linejoin for the stroke. The following values can be specified:
         *          <dl>
         *              <dt>round (default)</dt><dd>Specifies that the linejoin will be round.</dd>
         *              <dt>bevel</dt><dd>Specifies a bevel for the linejoin.</dd>
         *              <dt>miter limit</dt><dd>An integer specifying the miter limit of a miter linejoin. If you want to specify a linejoin
         *              of miter, you simply specify the limit as opposed to having separate miter and miter limit values.</dd>
         *          </dl>
         *      </dd>
         *  </dl>
    	 *
    	 * @config stroke
    	 * @type Object
    	 */
    	stroke: {
    		valueFn: "_getDefaultStroke",

    		setter: function(val)
    		{
    			var tmpl = this.get("stroke") || this._getDefaultStroke(),
                    wt;
                if(val && val.hasOwnProperty("weight"))
                {
                    wt = parseInt(val.weight, 10);
                    if(!isNaN(wt))
                    {
                        val.weight = wt;
                    }
                }
                return (val) ? Y.merge(tmpl, val) : null;
    		}
    	},

    	// Only implemented in SVG
    	// Determines whether the instance will receive mouse events.
    	//
    	// @config pointerEvents
    	// @type string
    	//
    	pointerEvents: {
    		valueFn: function()
    		{
    			var val = "visiblePainted",
    				node = this.node;
    			if(node)
    			{
    				node.setAttribute("pointer-events", val);
    			}
    			return val;
    		},

    		setter: function(val)
    		{
    			var node = this.node;
    			if(node)
    			{
    				node.setAttribute("pointer-events", val);
    			}
    			return val;
    		}
    	},

    	/**
    	 * Dom node for the shape.
    	 *
    	 * @config node
    	 * @type HTMLElement
    	 * @readOnly
    	 */
    	node: {
    		readOnly: true,

            getter: function()
            {
                return this.node;
            }
    	},

        /**
         * Represents an SVG Path string. This will be parsed and added to shape's API to represent the SVG data across all
         * implementations. Note that when using VML or SVG implementations, part of this content will be added to the DOM using
         * respective VML/SVG attributes. If your content comes from an untrusted source, you will need to ensure that no
         * malicious code is included in that content.
         *
         * @config data
         * @type String
         */
        data: {
            setter: function(val)
            {
                if(this.get("node"))
                {
                    this._parsePathData(val);
                }
                return val;
            }
        },

    	/**
    	 * Reference to the parent graphic instance
    	 *
    	 * @config graphic
    	 * @type SVGGraphic
    	 * @readOnly
    	 */
    	graphic: {
    		readOnly: true,

            getter: function()
            {
                return this._graphic;
            }
    	}
    };
    Y.SVGShape = SVGShape;