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Code Editor : graphics.js

/*
YUI 3.17.2 (build 9c3c78e)
Copyright 2014 Yahoo! Inc. All rights reserved.
Licensed under the BSD License.
http://yuilibrary.com/license/
*/

YUI.add('graphics', function (Y, NAME) {

/**
 *
 * The `Graphics` module provides a JavaScript API for creating shapes in a variety of formats across
 * a <a href="http://developer.yahoo.com/yui/articles/gbs">browser test baseline</a>.
 * Based on device and browser capabilities, `Graphics` leverages <a href="http://www.w3.org/TR/SVG/">SVG</a>,
 * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> and <a href="http://www.w3.org/TR/NOTE-VML">VML</a>
 * to render its graphical elements.
 *
 * The `Graphics` module features a <a href="../classes/Graphic.html">`Graphic`</a> class that allows you to easily create and manage shapes.
 * Currently, a <a href="../classes/Graphic.html">`Graphic`</a> instance can be used to create predifined shapes and free-form polygons with fill
 * and stroke properties.
 *
 * The `Graphics` module normalizes an API through the use of alias and implementation classes that share
 * interfaces. Each alias class points to an appropriate implementation class dependent on the browser's
 * capabilities. There should rarely, if ever, be a need to interact directly with an implementation class.
 *
 * Below is a list of available classes.
 * <ul>
 * <li><a href="../classes/Graphic.html">`Graphic`</a>
 * <li><a href="../classes/Shape.html">`Shape`</a>
 * <li><a href="../classes/Circle.html">`Circle`</a>
 * <li><a href="../classes/Ellipse.html">`Ellipse`</a>
 * <li><a href="../classes/Rect.html">`Rect`</a>
 * <li><a href="../classes/Path.html">`Path`</a>
 * </ul>
 * You can also extend the `Shape` class to create your own custom shape classes.
 * @module graphics
 * @main graphics
 */
var SETTER = "setter",
	PluginHost = Y.Plugin.Host,
 VALUE = "value",
 VALUEFN = "valueFn",
 READONLY = "readOnly",
 Y_LANG = Y.Lang,
 STR = "string",
 WRITE_ONCE = "writeOnce",
 GraphicBase,
 AttributeLite;

/**
	 * AttributeLite provides Attribute-like getters and setters for shape classes in the Graphics module.
     * It provides a get/set API without the event infastructure. This class is temporary and a work in progress.
	 *
	 * @class AttributeLite
	 * @constructor
	 */
    AttributeLite = function()
    {
        var host = this; // help compression

// Perf tweak - avoid creating event literals if not required.
        host._ATTR_E_FACADE = {};

Y.EventTarget.call(this, {emitFacade:true});
        host._state = {};
        host.prototype = Y.mix(AttributeLite.prototype, host.prototype);
    };

AttributeLite.prototype = {
		/**
		 * Initializes the attributes for a shape. If an attribute config is passed into the constructor of the host,
		 * the initial values will be overwritten.
		 *
		 * @method addAttrs
		 * @param {Object} cfg Optional object containing attributes key value pairs to be set.
		 */
		addAttrs: function(cfg)
		{
			var host = this,
				attrConfig = this.constructor.ATTRS,
				attr,
				i,
				fn,
				state = host._state;
			for(i in attrConfig)
			{
				if(attrConfig.hasOwnProperty(i))
				{
					attr = attrConfig[i];
					if(attr.hasOwnProperty(VALUE))
					{
						state[i] = attr.value;
					}
					else if(attr.hasOwnProperty(VALUEFN))
					{
						fn = attr.valueFn;
						if(Y_LANG.isString(fn))
						{
							state[i] = host[fn].apply(host);
						}
						else
						{
							state[i] = fn.apply(host);
						}
					}
                }
            }
			host._state = state;
            for(i in attrConfig)
			{
				if(attrConfig.hasOwnProperty(i))
				{
					attr = attrConfig[i];
                    if(attr.hasOwnProperty(READONLY) && attr.readOnly)
					{
						continue;
					}

if(attr.hasOwnProperty(WRITE_ONCE) && attr.writeOnce)
					{
						attr.readOnly = true;
					}

if(cfg && cfg.hasOwnProperty(i))
					{
						if(attr.hasOwnProperty(SETTER))
						{
							host._state[i] = attr.setter.apply(host, [cfg[i]]);
						}
						else
						{
							host._state[i] = cfg[i];
						}
					}
				}
			}
		},

/**
         * For a given item, returns the value of the property requested, or undefined if not found.
         *
         * @method get
         * @param name {String} The name of the item
         * @return {Any} The value of the supplied property.
         */
        get: function(attr)
        {
            var host = this,
                getter,
                attrConfig = host.constructor.ATTRS;
            if(attrConfig && attrConfig[attr])
            {
                getter = attrConfig[attr].getter;
                if(getter)
                {
                    if(typeof getter === STR)
                    {
                        return host[getter].apply(host);
                    }
                    return attrConfig[attr].getter.apply(host);
                }

return host._state[attr];
            }
            return 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 attr = arguments[0],
                i;
            if(Y_LANG.isObject(attr))
            {
                for(i in attr)
                {
                    if(attr.hasOwnProperty(i))
                    {
                        this._set(i, attr[i]);
                    }
                }
            }
            else
            {
                this._set.apply(this, arguments);
            }
        },

/**
         * Provides setter logic. Used by `set`.
         *
         * @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.
		 * @protected
		 */
		_set: function(attr, val)
		{
			var host = this,
				setter,
				args,
				attrConfig = host.constructor.ATTRS;
			if(attrConfig && attrConfig.hasOwnProperty(attr))
			{
				setter = attrConfig[attr].setter;
				if(setter)
				{
					args = [val];
					if(typeof setter === STR)
					{
						val = host[setter].apply(host, args);
					}
					else
                    {
                        val = attrConfig[attr].setter.apply(host, args);
                    }
				}
				host._state[attr] = val;
			}
		}
	};
    Y.mix(AttributeLite, Y.EventTarget, false, null, 1);
	Y.AttributeLite = AttributeLite;

/**
     * GraphicBase serves as the base class for the graphic layer. It serves the same purpose as
     * Base but uses a lightweight getter/setter class instead of Attribute.
     * This class is temporary and a work in progress.
     *
     * @class GraphicBase
     * @constructor
     * @param {Object} cfg Key value pairs for attributes
     */
    GraphicBase = function(cfg)
    {
        var host = this,
            PluginHost = Y.Plugin && Y.Plugin.Host;
        if (host._initPlugins && PluginHost) {
            PluginHost.call(host);
        }

host.name = host.constructor.NAME;
        host._eventPrefix = host.constructor.EVENT_PREFIX || host.constructor.NAME;
        AttributeLite.call(host);
        host.addAttrs(cfg);
        host.init.apply(this, arguments);
        if (host._initPlugins) {
            // Need to initPlugins manually, to handle constructor parsing, static Plug parsing
            host._initPlugins(cfg);
        }
        host.initialized = true;
    };

GraphicBase.NAME = "baseGraphic";

GraphicBase.prototype = {
        /**
         * Init method, invoked during construction.
         * Fires an init event after calling `initializer` on implementers.
         *
         * @method init
         * @protected
         */
        init: function()
        {
            this.publish("init", {
                fireOnce:true
            });
            this.initializer.apply(this, arguments);
            this.fire("init", {cfg: arguments[0]});
        },

/**
         * Camel case concatanates two strings.
         *
         * @method _camelCaseConcat
         * @param {String} prefix The first string
         * @param {String} name The second string
         * @return String
         * @private
         */
        _camelCaseConcat: function(prefix, name)
        {
            return prefix + name.charAt(0).toUpperCase() + name.slice(1);
        }
    };
//Straightup augment, no wrapper functions
Y.mix(GraphicBase, Y.AttributeLite, false, null, 1);
Y.mix(GraphicBase, PluginHost, false, null, 1);
GraphicBase.prototype.constructor = GraphicBase;
GraphicBase.plug = PluginHost.plug;
GraphicBase.unplug = PluginHost.unplug;
Y.GraphicBase = GraphicBase;

/**
 * `Drawing` provides a set of drawing methods used by `Path` and custom shape classes.
 * `Drawing` has the following implementations based on browser capability.
 * <ul>
 * <li><a href="SVGDrawing.html">`SVGDrawing`</a></li>
 * <li><a href="VMLDrawing.html">`VMLDrawing`</a></li>
 * <li><a href="CanvasDrawing.html">`CanvasDrawing`</a></li>
 * </ul>
 *
 * @class Drawing
 * @constructor
 */
 /**
 * Draws a bezier curve.
 *
 * @method curveTo
 * @param {Number} cp1x x-coordinate for the first control point.
 * @param {Number} cp1y y-coordinate for the first control point.
 * @param {Number} cp2x x-coordinate for the second control point.
 * @param {Number} cp2y y-coordinate for the second control point.
 * @param {Number} x x-coordinate for the end point.
 * @param {Number} y y-coordinate for the end point.
 * @chainable
 */
 /**
 * Draws a quadratic bezier curve.
 *
 * @method quadraticCurveTo
 * @param {Number} cpx x-coordinate for the control point.
 * @param {Number} cpy y-coordinate for the control point.
 * @param {Number} x x-coordinate for the end point.
 * @param {Number} y y-coordinate for the end point.
 * @chainable
 */
 /**
 * Draws a rectangle.
 *
 * @method drawRect
 * @param {Number} x x-coordinate
 * @param {Number} y y-coordinate
 * @param {Number} w width
 * @param {Number} h height
 * @chainable
 */
 /**
 * Draws a rectangle with rounded corners.
 *
 * @method drawRoundRect
 * @param {Number} x x-coordinate
 * @param {Number} y y-coordinate
 * @param {Number} w width
 * @param {Number} h height
 * @param {Number} ew width of the ellipse used to draw the rounded corners
 * @param {Number} eh height of the ellipse used to draw the rounded corners
 * @chainable
 */
 /**
 * Draws a circle.
 *
 * @method drawCircle
 * @param {Number} x y-coordinate
 * @param {Number} y x-coordinate
 * @param {Number} r radius
 * @chainable
 * @protected
 */
 /**
 * Draws an ellipse.
 *
 * @method drawEllipse
 * @param {Number} x x-coordinate
 * @param {Number} y y-coordinate
 * @param {Number} w width
 * @param {Number} h height
 * @chainable
 * @protected
 */
 /**
 * Draws a diamond.
 *
 * @method drawDiamond
 * @param {Number} x y-coordinate
 * @param {Number} y x-coordinate
 * @param {Number} width width
 * @param {Number} height height
 * @chainable
 * @protected
 */
 /**
 * Draws a wedge.
 *
 * @method drawWedge
 * @param {Number} x x-coordinate of the wedge's center point
 * @param {Number} y y-coordinate of the wedge's center point
 * @param {Number} startAngle starting angle in degrees
 * @param {Number} arc sweep of the wedge. Negative values draw clockwise.
 * @param {Number} radius radius of wedge. If [optional] yRadius is defined, then radius is the x radius.
 * @param {Number} yRadius [optional] y radius for wedge.
 * @chainable
 * @private
 */
 /**
 * Draws a line segment using the current line style from the current drawing position to the specified x and y coordinates.
 *
 * @method lineTo
 * @param {Number} point1 x-coordinate for the end point.
 * @param {Number} point2 y-coordinate for the end point.
 * @chainable
 */
 /**
 * Draws a line segment using the current line style from the current drawing position to the relative x and y coordinates.
 *
 * @method relativeLineTo
 * @param {Number} point1 x-coordinate for the end point.
 * @param {Number} point2 y-coordinate for the end point.
 * @chainable
 */
 /**
 * Moves the current drawing position to specified x and y coordinates.
 *
 * @method moveTo
 * @param {Number} x x-coordinate for the end point.
 * @param {Number} y y-coordinate for the end point.
 * @chainable
 */
 /**
 * Moves the current drawing position relative to specified x and y coordinates.
 *
 * @method relativeMoveTo
 * @param {Number} x x-coordinate for the end point.
 * @param {Number} y y-coordinate for the end point.
 * @chainable
 */
 /**
 * Completes a drawing operation.
 *
 * @method end
 * @chainable
 */
 /**
 * Clears the path.
 *
 * @method clear
 * @chainable
 */
 /**
 * Ends a fill and stroke
 *
 * @method closePath
 * @chainable
 */
/**
 * Base class for creating shapes.
 * `Shape` is an abstract class and is not meant to be used directly. The following classes extend
 * `Shape`.
 *
 * <ul>
 * <li><a href="Circle.html">`Circle`</a></li>
 * <li><a href="Ellipse.html">`Ellipse`</a></li>
 * <li><a href="Rect.html">`Rect`</a></li>
 * <li><a href="Path.html">`Path`</a></li>
 * </ul>
 *
 * `Shape` can also be extended to create custom shape classes.
 *
 * `Shape` has the following implementations based on browser capability.
 * <ul>
 * <li><a href="SVGShape.html">`SVGShape`</a></li>
 * <li><a href="VMLShape.html">`VMLShape`</a></li>
 * <li><a href="CanvasShape.html">`CanvasShape`</a></li>
 * </ul>
 *
 * It is not necessary to interact with these classes directly. `Shape` will point to the appropriate implemention.
 *
 * @class Shape
 * @constructor
 * @param {Object} cfg (optional) Attribute configs
 */
 /**
 * Init method, invoked during construction.
 * Calls `initializer` method.
 *
 * @method init
 * @protected
 */
	/**
	 * Initializes the shape
	 *
	 * @private
	 * @method initializer
	 */
	/**
	 * Add a class name to each node.
	 *
	 * @method addClass
	 * @param {String} className the class name to add to the node's class attribute
	 */
	/**
	 * Removes a class name from each node.
	 *
	 * @method removeClass
	 * @param {String} className the class name to remove from the node's class attribute
	 */
	/**
	 * Gets the current position of the node in page coordinates.
	 *
	 * @method getXY
	 * @return Array The XY position of the shape.
	 */
	/**
	 * 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)
	 */
	/**
	 * Determines whether the node is an ancestor of another HTML element in the DOM hierarchy.
	 *
	 * @method contains
	 * @param {Shape | HTMLElement} needle The possible node or descendent
	 * @return Boolean Whether or not this shape is the needle or its ancestor.
	 */
	/**
	 * 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.
	 */
	/**
	 * 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.
	 */
 /**
 * 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.
 */
	/**
	 * 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.
	 */
	/**
	 * 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.
	 */
	/**
	 * 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.
	 */
 /**
 * 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.
 */
	/**
	 * Skews the shape around the x-axis.
	 *
	 * @method skewX
	 * @param {Number} x x-coordinate
	 */
	/**
	 * Skews the shape around the y-axis.
	 *
	 * @method skewY
	 * @param {Number} y y-coordinate
	 */
	/**
	 * Rotates the shape clockwise around it transformOrigin.
	 *
	 * @method rotate
	 * @param {Number} deg The degree of the rotation.
	 */
	/**
	 * Specifies a 2d scaling operation.
	 *
	 * @method scale
	 * @param {Number} val
	 */
	/**
	 * 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
	 */
 /**
 * Destroys the instance.
 *
 * @method destroy
 */
	/**
	 * 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
	 */
 /**
 * 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>
 * 
 * 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.
 var myRect = new Y.Rect({
 type:"rect",
 width: 50,
 height: 40,
 transform: "rotate(45)"
 };
 * The code below would apply `translate` and `rotate` to an existing shape.

myRect.set("transform", "translate(40, 50) rotate(45)");
	 * @config transform
 * @type String
	 */
	/**
	 * Unique id for class instance.
	 *
	 * @config id
	 * @type String
	 */
	/**
	 * Indicates the x position of shape.
	 *
	 * @config x
	 * @type Number
	 */
	/**
	 * Indicates the y position of shape.
	 *
	 * @config y
	 * @type Number
	 */
	/**
	 * Indicates the width of the shape
	 *
	 * @config width
	 * @type Number
	 */
	/**
	 * Indicates the height of the shape
	 *
	 * @config height
	 * @type Number
	 */
	/**
	 * Indicates whether the shape is visible.
	 *
	 * @config visible
	 * @type Boolean
	 */
	/**
	 * 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>
 * 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>
 * Linear gradients also have the following property:
 * <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>
 * Radial gradients have the following additional properties:
 * <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>
 * The x-coordinate of the center of the gradient circle. Determines where the color stop begins. The default value 0.5.
 * Note: Currently, this property is not implemented for corresponding `CanvasShape` and
 * `VMLShape` classes which are used on Android or IE 6 - 8.
 * </dd>
 * <dt>cy</dt><dd>
 * The y-coordinate of the center of the gradient circle. Determines where the color stop begins. The default value 0.5.
 * Note: Currently, this property is not implemented for corresponding `CanvasShape` and `VMLShape`
 * classes which are used on Android or IE 6 - 8.
 * </dd>
 * </dl>
	 *
	 * @config fill
	 * @type Object
	 */
	/**
	 * 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
	 */
	/**
	 * Dom node for the shape.
	 *
	 * @config node
	 * @type HTMLElement
	 * @readOnly
	 */
 /**
 * 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
 */
	/**
	 * Reference to the parent graphic instance
	 *
	 * @config graphic
	 * @type Graphic
	 * @readOnly
	 */

/**
 * Creates circle shape with editable attributes.
 * `Circle` instances can be created using the <a href="Graphic.html#method_addShape">`addShape`</a> method of the
 * <a href="Graphic.html">`Graphic`</a> class. The method's `cfg` argument contains a `type` attribute. Assigning "circle"
 * or `Y.Circle` to this attribute will create a `Circle` instance. Required attributes for instantiating a `Circle` are
 * `type` and `radius`. Optional attributes include:
 * <ul>
 * <li><a href="#attr_fill">fill</a></li>
 * <li><a href="#attr_id">id</a></li>
 * <li><a href="#attr_stroke">stroke</a></li>
 * <li><a href="#attr_transform">transform</a></li>
 * <li><a href="#attr_transformOrigin">transformOrigin</a></li>
 * <li><a href="#attr_visible">visible</a></li>
 * <li><a href="#attr_x">x</a></li>
 * <li><a href="#attr_y">y</a></li>
 * </ul>
 *
 * The below code creates a circle by defining the `type` attribute as "circle":

var myCircle = myGraphic.addShape({
            type: "circle",
            radius: 10,
            fill: {
                color: "#9aa"
            },
            stroke: {
                weight: 1,
                color: "#000"
            }
        });

* Below, this same circle is created by defining the `type` attribute with a class reference:
 *
 var myCircle = myGraphic.addShape({
 type: Y.Circle,
 radius: 10,
 fill: {
 color: "#9aa"
 },
 stroke: {
 weight: 1,
 color: "#000"
 }
 });
 *
 * `Circle` has the following implementations based on browser capability.
 * <ul>
 * <li><a href="SVGCircle.html">`SVGCircle`</a></li>
 * <li><a href="VMLCircle.html">`VMLCircle`</a></li>
 * <li><a href="CanvasCircle.html">`CanvasCircle`</a></li>
 * </ul>
 *
 * It is not necessary to interact with these classes directly. `Circle` will point to the appropriate implemention.
 *
 * @class Circle
 * @extends Shape
 * @constructor
 */
 /**
 * Radius of the circle
 *
 * @config radius
 * @type Number
 */
/**
 * Creates an ellipse shape with editable attributes.
 * `Ellipse` instances can be created using the <a href="Graphic.html#method_addShape">`addShape`</a> method of the
 * <a href="Graphic.html">`Graphic`</a> class. The method's `cfg` argument contains a `type` attribute. Assigning "ellipse"
 * or `Y.Ellipse` to this attribute will create a `Ellipse` instance. Required attributes for instantiating a `Ellipse` are
 * `type`, `width` and `height`. Optional attributes include:
 * <ul>
 * <li><a href="#attr_fill">fill</a></li>
 * <li><a href="#attr_id">id</a></li>
 * <li><a href="#attr_stroke">stroke</a></li>
 * <li><a href="#attr_transform">transform</a></li>
 * <li><a href="#attr_transformOrigin">transformOrigin</a></li>
 * <li><a href="#attr_visible">visible</a></li>
 * <li><a href="#attr_x">x</a></li>
 * <li><a href="#attr_y">y</a></li>
 * </ul>
 *
 * The below code creates an ellipse by defining the `type` attribute as "ellipse":

var myEllipse = myGraphic.addShape({
            type: "ellipse",
            width: 20,
            height: 10,
            fill: {
                color: "#9aa"
            },
            stroke: {
                weight: 1,
                color: "#000"
            }
        });

* Below, the same ellipse is created by defining the `type` attribute with a class reference:
 *
 var myEllipse = myGraphic.addShape({
 type: Y.Ellipse,
 width: 20,
 height: 10,
 fill: {
 color: "#9aa"
 },
 stroke: {
 weight: 1,
 color: "#000"
 }
 });
 *
 * `Ellipse` has the following implementations based on browser capability.
 * <ul>
 * <li><a href="SVGEllipse.html">`SVGEllipse`</a></li>
 * <li><a href="VMLEllipse.html">`VMLEllipse`</a></li>
 * <li><a href="CanvasEllipse.html">`CanvasEllipse`</a></li>
 * </ul>
 *
 * It is not necessary to interact with these classes directly. `Ellipse` will point to the appropriate implemention.
 *
 * @class Ellipse
 * @extends Shape
 * @constructor
 */
/**
 * Creates an rectangle shape with editable attributes.
 * `Rect` instances can be created using the <a href="Graphic.html#method_addShape">`addShape`</a> method of the
 * <a href="Graphic.html">`Graphic`</a> class. The method's `cfg` argument contains a `type` attribute. Assigning "rect"
 * or `Y.Rect` to this attribute will create a `Rect` instance. Required attributes for instantiating a `Rect` are `type`,
 * `width` and `height`. Optional attributes include:
 * <ul>
 * <li><a href="#attr_fill">fill</a></li>
 * <li><a href="#attr_id">id</a></li>
 * <li><a href="#attr_stroke">stroke</a></li>
 * <li><a href="#attr_transform">transform</a></li>
 * <li><a href="#attr_transformOrigin">transformOrigin</a></li>
 * <li><a href="#attr_visible">visible</a></li>
 * <li><a href="#attr_x">x</a></li>
 * <li><a href="#attr_y">y</a></li>
 * </ul>
 *
 * The below code creates a rectangle by defining the `type` attribute as "rect":

var myRect = myGraphic.addShape({
            type: "rect",
            width: 20,
            height: 10,
            fill: {
                color: "#9aa"
            },
            stroke: {
                weight: 1,
                color: "#000"
            }
        });

* Below, the same rectangle is created by defining the `type` attribute with a class reference:
 *
 var myRect = myGraphic.addShape({
 type: Y.Rect,
 width: 20,
 height: 10,
 fill: {
 color: "#9aa"
 },
 stroke: {
 weight: 1,
 color: "#000"
 }
 });
 *
 * `Rect` has the following implementations based on browser capability.
 * <ul>
 * <li><a href="SVGRect.html">`SVGRect`</a></li>
 * <li><a href="VMLRect.html">`VMLRect`</a></li>
 * <li><a href="CanvasRect.html">`CanvasRect`</a></li>
 * </ul>
 *
 * It is not necessary to interact with these classes directly. `Rect` will point to the appropriate implemention.
 *
 * @class Rect
 * @extends Shape
 * @constructor
 */
/**
 * The `Path` class creates a shape through the use of drawing methods. The `Path` class has the following drawing methods available:
 * <ul>
 * <li><a href="#method_clear">`clear`</a></li>
 * <li><a href="#method_curveTo">`curveTo`</a></li>
 * <li><a href="#method_drawRect">`drawRect`</a></li>
 * <li><a href="#method_drawRoundRect">`drawRoundRect`</a></li>
 * <li><a href="#method_end">`end`</a></li>
 * <li><a href="#method_lineTo">`lineTo`</a></li>
 * <li><a href="#method_moveTo">`moveTo`</a></li>
 * <li><a href="#method_quadraticCurveTo">`quadraticCurveTo`</a></li>
 * </ul>
 *
 * Like other shapes, `Path` elements are created using the <a href="Graphic.html#method_addShape">`addShape`</a>
 * method of the <a href="Graphic.html">`Graphic`</a> class. The method's `cfg` argument contains a `type` attribute.
 * Assigning "path" or `Y.Path` to this attribute will create a `Path` instance. After instantiation, a series of drawing
 * operations must be performed in order to render a shape. The below code instantiates a path element by defining the
 * `type` attribute as "path":

var myPath = myGraphic.addShape({
            type: "path",
            fill: {
                color: "#9aa"
            },
            stroke: {
                weight: 1,
                color: "#000"
            }
        });

* Below a `Path` element with the same properties is instantiated by defining the `type` attribute with a class reference:
 *
        var myPath = myGraphic.addShape({
            type: Y.Path,
            fill: {
                color: "#9aa"
            },
            stroke: {
                weight: 1,
                color: "#000"
            }
        });

* After instantiation, a shape or segment needs to be drawn for an element to render. After all draw operations are performed,
 * the <a href="#method_end">`end`</a> method will render the shape. The code below will draw a triangle:

myPath.moveTo(35, 5);
 myPath.lineTo(65, 65);
 myPath.lineTo(5, 65);
 myPath.lineTo(35, 5);
 myPath.end();
 *
 * `Path` has the following implementations based on browser capability.
 * <ul>
 * <li><a href="SVGPath.html">`SVGPath`</a></li>
 * <li><a href="VMLPath.html">`VMLPath`</a></li>
 * <li><a href="CanvasPath.html">`CanvasPath`</a></li>
 * </ul>
 * It is not necessary to interact with these classes directly. `Path` will point to the appropriate implemention.
 *
 * @class Path
 * @extends Shape
 * @uses Drawing
 * @constructor
 */
	/**
	 * Indicates the path used for the node.
	 *
	 * @config path
	 * @type String
 * @readOnly
	 */
/**
 * `Graphic` acts a factory and container for shapes. You need at least one `Graphic` instance to create shapes for your application.
 * The code block below creates a `Graphic` instance and appends it to an HTMLElement with the id 'mygraphiccontainer'.

var myGraphic = new Y.Graphic({render:"#mygraphiccontainer"});

* Alternatively, you can add a `Graphic` instance to the DOM using the <a href="#method_render">`render`</a> method.
 var myGraphic = new Y.Graphic();
 myGraphic.render("#mygraphiccontainer");

* `Graphic` has the following implementations based on browser capability.
 * <ul>
 * <li><a href="SVGGraphic.html">`SVGGraphic`</a></li>
 * <li><a href="VMLGraphic.html">`VMLGraphic`</a></li>
 * <li><a href="CanvasGraphic.html">`CanvasGraphic`</a></li>
 * </ul>
 *
 * It is not necessary to interact with these classes directly. `Graphic` will point to the appropriate implemention.
 *
 * @class Graphic
 * @constructor
 */
 /**
 * Whether or not to render the `Graphic` automatically after to a specified parent node after init. This can be a Node
 * instance or a CSS selector string.
 *
 * @config render
 * @type Node | String
 */
 /**
	 * Unique id for class instance.
	 *
	 * @config id
	 * @type String
	 */
 /**
 * Key value pairs in which a shape instance is associated with its id.
 *
 * @config shapes
 * @type Object
 * @readOnly
 */
 /**
 * Object containing size and coordinate data for the content of a Graphic in relation to the coordSpace node.
 *
 * @config contentBounds
 * @type Object
 * @readOnly
 */
 /**
 * The html element that represents to coordinate system of the Graphic instance.
 *
 * @config node
 * @type HTMLElement
 * @readOnly
 */
	/**
	 * Indicates the width of the `Graphic`.
	 *
	 * @config width
	 * @type Number
	 */
	/**
	 * Indicates the height of the `Graphic`.
	 *
	 * @config height
	 * @type Number
	 */
 /**
 * Determines the sizing of the Graphic.
 *
 * <dl>
 * <dt>sizeContentToGraphic</dt><dd>The Graphic's width and height attributes are, either explicitly set through the
 * <code>width</code> and <code>height</code> attributes or are determined by the dimensions of the parent element. The
 * content contained in the Graphic will be sized to fit with in the Graphic instance's dimensions. When using this
 * setting, the <code>preserveAspectRatio</code> attribute will determine how the contents are sized.</dd>
 * <dt>sizeGraphicToContent</dt><dd>(Also accepts a value of true) The Graphic's width and height are determined by the
 * size and positioning of the content.</dd>
 * <dt>false</dt><dd>The Graphic's width and height attributes are, either explicitly set through the <code>width</code>
 * and <code>height</code> attributes or are determined by the dimensions of the parent element. The contents of the
 * Graphic instance are not affected by this setting.</dd>
 * </dl>
 *
 *
 * @config autoSize
 * @type Boolean | String
 * @default false
 */
 /**
 * Determines how content is sized when <code>autoSize</code> is set to <code>sizeContentToGraphic</code>.
 *
 * <dl>
 * <dt>none<dt><dd>Do not force uniform scaling. Scale the graphic content of the given element non-uniformly if necessary
 * such that the element's bounding box exactly matches the viewport rectangle.</dd>
 * <dt>xMinYMin</dt><dd>Force uniform scaling position along the top left of the Graphic's node.</dd>
 * <dt>xMidYMin</dt><dd>Force uniform scaling horizontally centered and positioned at the top of the Graphic's node.<dd>
 * <dt>xMaxYMin</dt><dd>Force uniform scaling positioned horizontally from the right and vertically from the top.</dd>
 * <dt>xMinYMid</dt>Force uniform scaling positioned horizontally from the left and vertically centered.</dd>
 * <dt>xMidYMid (the default)</dt><dd>Force uniform scaling with the content centered.</dd>
 * <dt>xMaxYMid</dt><dd>Force uniform scaling positioned horizontally from the right and vertically centered.</dd>
 * <dt>xMinYMax</dt><dd>Force uniform scaling positioned horizontally from the left and vertically from the bottom.</dd>
 * <dt>xMidYMax</dt><dd>Force uniform scaling horizontally centered and position vertically from the bottom.</dd>
 * <dt>xMaxYMax</dt><dd>Force uniform scaling positioned horizontally from the right and vertically from the bottom.</dd>
 * </dl>
 *
 * @config preserveAspectRatio
 * @type String
 * @default xMidYMid
 */
 /**
 * The contentBounds will resize to greater values but not to smaller values. (for performance)
 * When resizing the contentBounds down is desirable, set the resizeDown value to true.
 *
 * @config resizeDown
 * @type Boolean
 */
	/**
	 * Indicates the x-coordinate for the instance.
	 *
	 * @config x
	 * @type Number
	 */
	/**
	 * Indicates the y-coordinate for the instance.
	 *
	 * @config y
	 * @type Number
	 */
 /**
 * Indicates whether or not the instance will automatically redraw after a change is made to a shape.
 * This property will get set to false when batching operations.
 *
 * @config autoDraw
 * @type Boolean
 * @default true
 * @private
 */
	/**
	 * Indicates whether the `Graphic` and its children are visible.
	 *
	 * @config visible
	 * @type Boolean
	 */
 /**
 * Gets the current position of the graphic instance in page coordinates.
 *
 * @method getXY
 * @return Array The XY position of the shape.
 */
 /**
 * Adds the graphics node to the dom.
 *
 * @method render
 * @param {Node|String} parentNode node in which to render the graphics node into.
 */
 /**
 * Removes all nodes.
 *
 * @method destroy
 */
 /**
 * Generates a shape instance by type. The method accepts an object that contain's the shape's
 * type and attributes to be customized. For example, the code below would create a rectangle:
 *
 var myRect = myGraphic.addShape({
 type: "rect",
 width: 40,
 height: 30,
 fill: {
 color: "#9aa"
 },
 stroke: {
 weight: 1,
 color: "#000"
 }
 });
 *
 * The `Graphics` module includes a few basic shapes. More information on their creation
 * can be found in each shape's documentation:
 *
 * <ul>
 * <li><a href="Circle.html">`Circle`</a></li>
 * <li><a href="Ellipse.html">`Ellipse`</a></li>
 * <li><a href="Rect.html">`Rect`</a></li>
 * <li><a href="Path.html">`Path`</a></li>
 * </ul>
 *
 * The `Graphics` module also allows for the creation of custom shapes. If a custom shape
 * has been created, it can be instantiated with the `addShape` method as well. The attributes,
 * required and optional, would need to be defined in the custom shape.
 *
 var myCustomShape = myGraphic.addShape({
 type: Y.MyCustomShape,
 width: 50,
 height: 50,
 fill: {
 color: "#9aa"
 },
 stroke: {
 weight: 1,
 color: "#000"
 }
 });
 *
 * @method addShape
 * @param {Object} cfg Object containing the shape's type and attributes.
 * @return Shape
 */
 /**
 * Removes a shape instance from from the graphic instance.
 *
 * @method removeShape
 * @param {Shape|String} shape The instance or id of the shape to be removed.
 */
 /**
 * Removes all shape instances from the dom.
 *
 * @method removeAllShapes
 */
 /**
 * Returns a shape based on the id of its dom node.
 *
 * @method getShapeById
 * @param {String} id Dom id of the shape's node attribute.
 * @return Shape
 */
	/**
	 * Allows for creating multiple shapes in order to batch appending and redraw operations.
	 *
	 * @method batch
	 * @param {Function} method Method to execute.
	 */

}, '3.17.2', {"requires": ["node", "event-custom", "pluginhost", "matrix", "classnamemanager"]});

${this.title}

Code Editor : graphics.js