--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cm/media/js/lib/yui/yui_3.10.3/build/graphics-canvas/graphics-canvas.js Tue Jul 16 14:29:46 2013 +0200
@@ -0,0 +1,3680 @@
+/*
+YUI 3.10.3 (build 2fb5187)
+Copyright 2013 Yahoo! Inc. All rights reserved.
+Licensed under the BSD License.
+http://yuilibrary.com/license/
+*/
+
+YUI.add('graphics-canvas', function (Y, NAME) {
+
+var IMPLEMENTATION = "canvas",
+ SHAPE = "shape",
+ SPLITPATHPATTERN = /[a-z][^a-z]*/ig,
+ SPLITARGSPATTERN = /[\-]?[0-9]*[0-9|\.][0-9]*/g,
+ DOCUMENT = Y.config.doc,
+ Y_LANG = Y.Lang,
+ AttributeLite = Y.AttributeLite,
+ CanvasShape,
+ CanvasPath,
+ CanvasRect,
+ CanvasEllipse,
+ CanvasCircle,
+ CanvasPieSlice,
+ Y_DOM = Y.DOM,
+ Y_Color = Y.Color,
+ PARSE_INT = parseInt,
+ PARSE_FLOAT = parseFloat,
+ IS_NUMBER = Y_LANG.isNumber,
+ RE = RegExp,
+ TORGB = Y_Color.toRGB,
+ TOHEX = Y_Color.toHex,
+ _getClassName = Y.ClassNameManager.getClassName;
+
+/**
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> implementation of the <a href="Drawing.html">`Drawing`</a> class.
+ * `CanvasDrawing` is not intended to be used directly. Instead, use the <a href="Drawing.html">`Drawing`</a> class.
+ * If the browser lacks <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities but has
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> capabilities, the <a href="Drawing.html">`Drawing`</a>
+ * class will point to the `CanvasDrawing` class.
+ *
+ * @module graphics
+ * @class CanvasDrawing
+ * @constructor
+ */
+function CanvasDrawing()
+{
+}
+
+CanvasDrawing.prototype = {
+ /**
+ * Maps path to methods
+ *
+ * @property _pathSymbolToMethod
+ * @type Object
+ * @private
+ */
+ _pathSymbolToMethod: {
+ M: "moveTo",
+ m: "relativeMoveTo",
+ L: "lineTo",
+ l: "relativeLineTo",
+ C: "curveTo",
+ c: "relativeCurveTo",
+ Q: "quadraticCurveTo",
+ q: "relativeQuadraticCurveTo",
+ z: "closePath",
+ Z: "closePath"
+ },
+
+ /**
+ * Current x position of the drawing.
+ *
+ * @property _currentX
+ * @type Number
+ * @private
+ */
+ _currentX: 0,
+
+ /**
+ * Current y position of the drqwing.
+ *
+ * @property _currentY
+ * @type Number
+ * @private
+ */
+ _currentY: 0,
+
+ /**
+ * Parses hex color string and alpha value to rgba
+ *
+ * @method _toRGBA
+ * @param {Object} val Color value to parse. Can be hex string, rgb or name.
+ * @param {Number} alpha Numeric value between 0 and 1 representing the alpha level.
+ * @private
+ */
+ _toRGBA: function(val, alpha) {
+ alpha = (alpha !== undefined) ? alpha : 1;
+ if (!Y_Color.re_RGB.test(val)) {
+ val = TOHEX(val);
+ }
+
+ if(Y_Color.re_hex.exec(val)) {
+ val = 'rgba(' + [
+ PARSE_INT(RE.$1, 16),
+ PARSE_INT(RE.$2, 16),
+ PARSE_INT(RE.$3, 16)
+ ].join(',') + ',' + alpha + ')';
+ }
+ return val;
+ },
+
+ /**
+ * Converts color to rgb format
+ *
+ * @method _toRGB
+ * @param val Color value to convert.
+ * @private
+ */
+ _toRGB: function(val) {
+ return TORGB(val);
+ },
+
+ /**
+ * Sets the size of the graphics object.
+ *
+ * @method setSize
+ * @param w {Number} width to set for the instance.
+ * @param h {Number} height to set for the instance.
+ * @private
+ */
+ setSize: function(w, h) {
+ if(this.get("autoSize"))
+ {
+ if(w > this.node.getAttribute("width"))
+ {
+ this.node.style.width = w + "px";
+ this.node.setAttribute("width", w);
+ }
+ if(h > this.node.getAttribute("height"))
+ {
+ this.node.style.height = h + "px";
+ this.node.setAttribute("height", h);
+ }
+ }
+ },
+
+ /**
+ * Tracks coordinates. Used to calculate the start point of dashed lines.
+ *
+ * @method _updateCoords
+ * @param {Number} x x-coordinate
+ * @param {Number} y y-coordinate
+ * @private
+ */
+ _updateCoords: function(x, y)
+ {
+ this._xcoords.push(x);
+ this._ycoords.push(y);
+ this._currentX = x;
+ this._currentY = y;
+ },
+
+ /**
+ * Clears the coordinate arrays. Called at the end of a drawing operation.
+ *
+ * @method _clearAndUpdateCoords
+ * @private
+ */
+ _clearAndUpdateCoords: function()
+ {
+ var x = this._xcoords.pop() || 0,
+ y = this._ycoords.pop() || 0;
+ this._updateCoords(x, y);
+ },
+
+ /**
+ * Moves the shape's dom node.
+ *
+ * @method _updateNodePosition
+ * @private
+ */
+ _updateNodePosition: function()
+ {
+ var node = this.get("node"),
+ x = this.get("x"),
+ y = this.get("y");
+ node.style.position = "absolute";
+ node.style.left = (x + this._left) + "px";
+ node.style.top = (y + this._top) + "px";
+ },
+
+ /**
+ * Queues up a method to be executed when a shape redraws.
+ *
+ * @method _updateDrawingQueue
+ * @param {Array} val An array containing data that can be parsed into a method and arguments. The value at zero-index
+ * of the array is a string reference of the drawing method that will be called. All subsequent indices are argument for
+ * that method. For example, `lineTo(10, 100)` would be structured as:
+ * `["lineTo", 10, 100]`.
+ * @private
+ */
+ _updateDrawingQueue: function(val)
+ {
+ this._methods.push(val);
+ },
+
+ /**
+ * Draws a line segment 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
+ */
+ lineTo: function()
+ {
+ this._lineTo.apply(this, [Y.Array(arguments), false]);
+ return this;
+ },
+
+ /**
+ * Draws a line segment from the current drawing position to the relative 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
+ */
+ relativeLineTo: function()
+ {
+ this._lineTo.apply(this, [Y.Array(arguments), true]);
+ return this;
+ },
+
+ /**
+ * Implements lineTo methods.
+ *
+ * @method _lineTo
+ * @param {Array} args The arguments to be used.
+ * @param {Boolean} relative Indicates whether or not to use relative coordinates.
+ * @private
+ */
+ _lineTo: function(args, relative)
+ {
+ var point1 = args[0],
+ i,
+ len,
+ x,
+ y,
+ wt = this._stroke && this._strokeWeight ? this._strokeWeight : 0,
+ relativeX = relative ? parseFloat(this._currentX) : 0,
+ relativeY = relative ? parseFloat(this._currentY) : 0;
+ if(!this._lineToMethods)
+ {
+ this._lineToMethods = [];
+ }
+ len = args.length - 1;
+ if (typeof point1 === 'string' || typeof point1 === 'number') {
+ for (i = 0; i < len; i = i + 2) {
+ x = parseFloat(args[i]);
+ y = parseFloat(args[i + 1]);
+ x = x + relativeX;
+ y = y + relativeY;
+ this._updateDrawingQueue(["lineTo", x, y]);
+ this._trackSize(x - wt, y - wt);
+ this._trackSize(x + wt, y + wt);
+ this._updateCoords(x, y);
+ }
+ }
+ else
+ {
+ for (i = 0; i < len; i = i + 1)
+ {
+ x = parseFloat(args[i][0]);
+ y = parseFloat(args[i][1]);
+ this._updateDrawingQueue(["lineTo", x, y]);
+ this._lineToMethods[this._lineToMethods.length] = this._methods[this._methods.length - 1];
+ this._trackSize(x - wt, y - wt);
+ this._trackSize(x + wt, y + wt);
+ this._updateCoords(x, y);
+ }
+ }
+ this._drawingComplete = false;
+ return this;
+ },
+
+ /**
+ * 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
+ */
+ moveTo: function()
+ {
+ this._moveTo.apply(this, [Y.Array(arguments), false]);
+ return this;
+ },
+
+ /**
+ * 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
+ */
+ relativeMoveTo: function()
+ {
+ this._moveTo.apply(this, [Y.Array(arguments), true]);
+ return this;
+ },
+
+ /**
+ * Implements moveTo methods.
+ *
+ * @method _moveTo
+ * @param {Array} args The arguments to be used.
+ * @param {Boolean} relative Indicates whether or not to use relative coordinates.
+ * @private
+ */
+ _moveTo: function(args, relative) {
+ var wt = this._stroke && this._strokeWeight ? this._strokeWeight : 0,
+ relativeX = relative ? parseFloat(this._currentX) : 0,
+ relativeY = relative ? parseFloat(this._currentY) : 0,
+ x = parseFloat(args[0]) + relativeX,
+ y = parseFloat(args[1]) + relativeY;
+ this._updateDrawingQueue(["moveTo", x, y]);
+ this._trackSize(x - wt, y - wt);
+ this._trackSize(x + wt, y + wt);
+ this._updateCoords(x, y);
+ this._drawingComplete = false;
+ return this;
+ },
+
+ /**
+ * 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
+ */
+ curveTo: function() {
+ this._curveTo.apply(this, [Y.Array(arguments), false]);
+ return this;
+ },
+
+ /**
+ * Draws a bezier curve relative to the current coordinates.
+ *
+ * @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
+ */
+ relativeCurveTo: function() {
+ this._curveTo.apply(this, [Y.Array(arguments), true]);
+ return this;
+ },
+
+ /**
+ * Implements curveTo methods.
+ *
+ * @method _curveTo
+ * @param {Array} args The arguments to be used.
+ * @param {Boolean} relative Indicates whether or not to use relative coordinates.
+ * @private
+ */
+ _curveTo: function(args, relative) {
+ var w,
+ h,
+ cp1x,
+ cp1y,
+ cp2x,
+ cp2y,
+ x,
+ y,
+ pts,
+ right,
+ left,
+ bottom,
+ top,
+ i,
+ len,
+ relativeX = relative ? parseFloat(this._currentX) : 0,
+ relativeY = relative ? parseFloat(this._currentY) : 0;
+ len = args.length - 5;
+ for(i = 0; i < len; i = i + 6)
+ {
+ cp1x = parseFloat(args[i]) + relativeX;
+ cp1y = parseFloat(args[i + 1]) + relativeY;
+ cp2x = parseFloat(args[i + 2]) + relativeX;
+ cp2y = parseFloat(args[i + 3]) + relativeY;
+ x = parseFloat(args[i + 4]) + relativeX;
+ y = parseFloat(args[i + 5]) + relativeY;
+ this._updateDrawingQueue(["bezierCurveTo", cp1x, cp1y, cp2x, cp2y, x, y]);
+ this._drawingComplete = false;
+ right = Math.max(x, Math.max(cp1x, cp2x));
+ bottom = Math.max(y, Math.max(cp1y, cp2y));
+ left = Math.min(x, Math.min(cp1x, cp2x));
+ top = Math.min(y, Math.min(cp1y, cp2y));
+ w = Math.abs(right - left);
+ h = Math.abs(bottom - top);
+ pts = [[this._currentX, this._currentY] , [cp1x, cp1y], [cp2x, cp2y], [x, y]];
+ this._setCurveBoundingBox(pts, w, h);
+ this._currentX = x;
+ this._currentY = y;
+ }
+ },
+
+ /**
+ * 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
+ */
+ quadraticCurveTo: function() {
+ this._quadraticCurveTo.apply(this, [Y.Array(arguments), false]);
+ return this;
+ },
+
+ /**
+ * Draws a quadratic bezier curve relative to the current position.
+ *
+ * @method relativeQuadraticCurveTo
+ * @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
+ */
+ relativeQuadraticCurveTo: function() {
+ this._quadraticCurveTo.apply(this, [Y.Array(arguments), true]);
+ return this;
+ },
+
+ /**
+ * Implements quadraticCurveTo methods.
+ *
+ * @method _quadraticCurveTo
+ * @param {Array} args The arguments to be used.
+ * @param {Boolean} relative Indicates whether or not to use relative coordinates.
+ * @private
+ */
+ _quadraticCurveTo: function(args, relative) {
+ var cpx,
+ cpy,
+ x,
+ y,
+ w,
+ h,
+ pts,
+ right,
+ left,
+ bottom,
+ top,
+ i,
+ len = args.length - 3,
+ relativeX = relative ? parseFloat(this._currentX) : 0,
+ relativeY = relative ? parseFloat(this._currentY) : 0;
+ for(i = 0; i < len; i = i + 4)
+ {
+ cpx = parseFloat(args[i]) + relativeX;
+ cpy = parseFloat(args[i + 1]) + relativeY;
+ x = parseFloat(args[i + 2]) + relativeX;
+ y = parseFloat(args[i + 3]) + relativeY;
+ this._drawingComplete = false;
+ right = Math.max(x, cpx);
+ bottom = Math.max(y, cpy);
+ left = Math.min(x, cpx);
+ top = Math.min(y, cpy);
+ w = Math.abs(right - left);
+ h = Math.abs(bottom - top);
+ pts = [[this._currentX, this._currentY] , [cpx, cpy], [x, y]];
+ this._setCurveBoundingBox(pts, w, h);
+ this._updateDrawingQueue(["quadraticCurveTo", cpx, cpy, x, y]);
+ this._updateCoords(x, y);
+ }
+ return this;
+ },
+
+ /**
+ * Draws a circle. Used internally by `CanvasCircle` class.
+ *
+ * @method drawCircle
+ * @param {Number} x y-coordinate
+ * @param {Number} y x-coordinate
+ * @param {Number} r radius
+ * @chainable
+ * @protected
+ */
+ drawCircle: function(x, y, radius) {
+ var startAngle = 0,
+ endAngle = 2 * Math.PI,
+ wt = this._stroke && this._strokeWeight ? this._strokeWeight : 0,
+ circum = radius * 2;
+ circum += wt;
+ this._drawingComplete = false;
+ this._trackSize(x + circum, y + circum);
+ this._trackSize(x - wt, y - wt);
+ this._updateCoords(x, y);
+ this._updateDrawingQueue(["arc", x + radius, y + radius, radius, startAngle, endAngle, false]);
+ return this;
+ },
+
+ /**
+ * 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
+ */
+ drawDiamond: function(x, y, width, height)
+ {
+ var midWidth = width * 0.5,
+ midHeight = height * 0.5;
+ this.moveTo(x + midWidth, y);
+ this.lineTo(x + width, y + midHeight);
+ this.lineTo(x + midWidth, y + height);
+ this.lineTo(x, y + midHeight);
+ this.lineTo(x + midWidth, y);
+ return this;
+ },
+
+ /**
+ * Draws an ellipse. Used internally by `CanvasEllipse` class.
+ *
+ * @method drawEllipse
+ * @param {Number} x x-coordinate
+ * @param {Number} y y-coordinate
+ * @param {Number} w width
+ * @param {Number} h height
+ * @chainable
+ * @protected
+ */
+ drawEllipse: function(x, y, w, h) {
+ var l = 8,
+ theta = -(45/180) * Math.PI,
+ angle = 0,
+ angleMid,
+ radius = w/2,
+ yRadius = h/2,
+ i,
+ centerX = x + radius,
+ centerY = y + yRadius,
+ ax, ay, bx, by, cx, cy,
+ wt = this._stroke && this._strokeWeight ? this._strokeWeight : 0;
+
+ ax = centerX + Math.cos(0) * radius;
+ ay = centerY + Math.sin(0) * yRadius;
+ this.moveTo(ax, ay);
+ for(i = 0; i < l; i++)
+ {
+ angle += theta;
+ angleMid = angle - (theta / 2);
+ bx = centerX + Math.cos(angle) * radius;
+ by = centerY + Math.sin(angle) * yRadius;
+ cx = centerX + Math.cos(angleMid) * (radius / Math.cos(theta / 2));
+ cy = centerY + Math.sin(angleMid) * (yRadius / Math.cos(theta / 2));
+ this._updateDrawingQueue(["quadraticCurveTo", cx, cy, bx, by]);
+ }
+ this._trackSize(x + w + wt, y + h + wt);
+ this._trackSize(x - wt, y - wt);
+ this._updateCoords(x, y);
+ return this;
+ },
+
+ /**
+ * Draws a rectangle.
+ *
+ * @method drawRect
+ * @param {Number} x x-coordinate
+ * @param {Number} y y-coordinate
+ * @param {Number} w width
+ * @param {Number} h height
+ * @chainable
+ */
+ drawRect: function(x, y, w, h) {
+ this._drawingComplete = false;
+ this.moveTo(x, y);
+ this.lineTo(x + w, y);
+ this.lineTo(x + w, y + h);
+ this.lineTo(x, y + h);
+ this.lineTo(x, y);
+ return this;
+ },
+
+ /**
+ * Draws a rectangle with rounded corners.
+ *
+ * @method drawRect
+ * @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
+ */
+ drawRoundRect: function(x, y, w, h, ew, eh) {
+ this._drawingComplete = false;
+ this.moveTo( x, y + eh);
+ this.lineTo(x, y + h - eh);
+ this.quadraticCurveTo(x, y + h, x + ew, y + h);
+ this.lineTo(x + w - ew, y + h);
+ this.quadraticCurveTo(x + w, y + h, x + w, y + h - eh);
+ this.lineTo(x + w, y + eh);
+ this.quadraticCurveTo(x + w, y, x + w - ew, y);
+ this.lineTo(x + ew, y);
+ this.quadraticCurveTo(x, y, x, y + eh);
+ return this;
+ },
+
+ /**
+ * 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
+ */
+ drawWedge: function(x, y, startAngle, arc, radius, yRadius)
+ {
+ var wt = this._stroke && this._strokeWeight ? this._strokeWeight : 0,
+ segs,
+ segAngle,
+ theta,
+ angle,
+ angleMid,
+ ax,
+ ay,
+ bx,
+ by,
+ cx,
+ cy,
+ i = 0;
+ yRadius = yRadius || radius;
+
+ this._drawingComplete = false;
+ // move to x,y position
+ this._updateDrawingQueue(["moveTo", x, y]);
+
+ yRadius = yRadius || radius;
+
+ // limit sweep to reasonable numbers
+ if(Math.abs(arc) > 360)
+ {
+ arc = 360;
+ }
+
+ // First we calculate how many segments are needed
+ // for a smooth arc.
+ segs = Math.ceil(Math.abs(arc) / 45);
+
+ // Now calculate the sweep of each segment.
+ segAngle = arc / segs;
+
+ // The math requires radians rather than degrees. To convert from degrees
+ // use the formula (degrees/180)*Math.PI to get radians.
+ theta = -(segAngle / 180) * Math.PI;
+
+ // convert angle startAngle to radians
+ angle = (startAngle / 180) * Math.PI;
+
+ // draw the curve in segments no larger than 45 degrees.
+ if(segs > 0)
+ {
+ // draw a line from the center to the start of the curve
+ ax = x + Math.cos(startAngle / 180 * Math.PI) * radius;
+ ay = y + Math.sin(startAngle / 180 * Math.PI) * yRadius;
+ this.lineTo(ax, ay);
+ // Loop for drawing curve segments
+ for(i = 0; i < segs; ++i)
+ {
+ angle += theta;
+ angleMid = angle - (theta / 2);
+ bx = x + Math.cos(angle) * radius;
+ by = y + Math.sin(angle) * yRadius;
+ cx = x + Math.cos(angleMid) * (radius / Math.cos(theta / 2));
+ cy = y + Math.sin(angleMid) * (yRadius / Math.cos(theta / 2));
+ this._updateDrawingQueue(["quadraticCurveTo", cx, cy, bx, by]);
+ }
+ // close the wedge by drawing a line to the center
+ this._updateDrawingQueue(["lineTo", x, y]);
+ }
+ this._trackSize(-wt , -wt);
+ this._trackSize((radius * 2) + wt, (radius * 2) + wt);
+ return this;
+ },
+
+ /**
+ * Completes a drawing operation.
+ *
+ * @method end
+ * @chainable
+ */
+ end: function() {
+ this._closePath();
+ return this;
+ },
+
+ /**
+ * Ends a fill and stroke
+ *
+ * @method closePath
+ * @chainable
+ */
+ closePath: function()
+ {
+ this._updateDrawingQueue(["closePath"]);
+ this._updateDrawingQueue(["beginPath"]);
+ return this;
+ },
+
+ /**
+ * Clears the graphics object.
+ *
+ * @method clear
+ * @chainable
+ */
+ clear: function() {
+ this._initProps();
+ if(this.node)
+ {
+ this._context.clearRect(0, 0, this.node.width, this.node.height);
+ }
+ return this;
+ },
+
+
+ /**
+ * Returns a linear gradient fill
+ *
+ * @method _getLinearGradient
+ * @return CanvasGradient
+ * @private
+ */
+ _getLinearGradient: function() {
+ var isNumber = Y.Lang.isNumber,
+ fill = this.get("fill"),
+ stops = fill.stops,
+ opacity,
+ color,
+ stop,
+ i,
+ len = stops.length,
+ gradient,
+ x = 0,
+ y = 0,
+ w = this.get("width"),
+ h = this.get("height"),
+ r = fill.rotation || 0,
+ x1, x2, y1, y2,
+ cx = x + w/2,
+ cy = y + h/2,
+ offset,
+ radCon = Math.PI/180,
+ tanRadians = parseFloat(parseFloat(Math.tan(r * radCon)).toFixed(8));
+ if(Math.abs(tanRadians) * w/2 >= h/2)
+ {
+ if(r < 180)
+ {
+ y1 = y;
+ y2 = y + h;
+ }
+ else
+ {
+ y1 = y + h;
+ y2 = y;
+ }
+ x1 = cx - ((cy - y1)/tanRadians);
+ x2 = cx - ((cy - y2)/tanRadians);
+ }
+ else
+ {
+ if(r > 90 && r < 270)
+ {
+ x1 = x + w;
+ x2 = x;
+ }
+ else
+ {
+ x1 = x;
+ x2 = x + w;
+ }
+ y1 = ((tanRadians * (cx - x1)) - cy) * -1;
+ y2 = ((tanRadians * (cx - x2)) - cy) * -1;
+ }
+ gradient = this._context.createLinearGradient(x1, y1, x2, y2);
+ for(i = 0; i < len; ++i)
+ {
+ stop = stops[i];
+ opacity = stop.opacity;
+ color = stop.color;
+ offset = stop.offset;
+ if(isNumber(opacity))
+ {
+ opacity = Math.max(0, Math.min(1, opacity));
+ color = this._toRGBA(color, opacity);
+ }
+ else
+ {
+ color = TORGB(color);
+ }
+ offset = stop.offset || i/(len - 1);
+ gradient.addColorStop(offset, color);
+ }
+ return gradient;
+ },
+
+ /**
+ * Returns a radial gradient fill
+ *
+ * @method _getRadialGradient
+ * @return CanvasGradient
+ * @private
+ */
+ _getRadialGradient: function() {
+ var isNumber = Y.Lang.isNumber,
+ fill = this.get("fill"),
+ r = fill.r,
+ fx = fill.fx,
+ fy = fill.fy,
+ stops = fill.stops,
+ opacity,
+ color,
+ stop,
+ i,
+ len = stops.length,
+ gradient,
+ x = 0,
+ y = 0,
+ w = this.get("width"),
+ h = this.get("height"),
+ x1, x2, y1, y2, r2,
+ xc, yc, xn, yn, d,
+ offset,
+ ratio,
+ stopMultiplier;
+ xc = x + w/2;
+ yc = y + h/2;
+ x1 = w * fx;
+ y1 = h * fy;
+ x2 = x + w/2;
+ y2 = y + h/2;
+ r2 = w * r;
+ d = Math.sqrt( Math.pow(Math.abs(xc - x1), 2) + Math.pow(Math.abs(yc - y1), 2) );
+ if(d >= r2)
+ {
+ ratio = d/r2;
+ //hack. gradient won't show if it is exactly on the edge of the arc
+ if(ratio === 1)
+ {
+ ratio = 1.01;
+ }
+ xn = (x1 - xc)/ratio;
+ yn = (y1 - yc)/ratio;
+ xn = xn > 0 ? Math.floor(xn) : Math.ceil(xn);
+ yn = yn > 0 ? Math.floor(yn) : Math.ceil(yn);
+ x1 = xc + xn;
+ y1 = yc + yn;
+ }
+
+ //If the gradient radius is greater than the circle's, adjusting the radius stretches the gradient properly.
+ //If the gradient radius is less than the circle's, adjusting the radius of the gradient will not work.
+ //Instead, adjust the color stops to reflect the smaller radius.
+ if(r >= 0.5)
+ {
+ gradient = this._context.createRadialGradient(x1, y1, r, x2, y2, r * w);
+ stopMultiplier = 1;
+ }
+ else
+ {
+ gradient = this._context.createRadialGradient(x1, y1, r, x2, y2, w/2);
+ stopMultiplier = r * 2;
+ }
+ for(i = 0; i < len; ++i)
+ {
+ stop = stops[i];
+ opacity = stop.opacity;
+ color = stop.color;
+ offset = stop.offset;
+ if(isNumber(opacity))
+ {
+ opacity = Math.max(0, Math.min(1, opacity));
+ color = this._toRGBA(color, opacity);
+ }
+ else
+ {
+ color = TORGB(color);
+ }
+ offset = stop.offset || i/(len - 1);
+ offset *= stopMultiplier;
+ if(offset <= 1)
+ {
+ gradient.addColorStop(offset, color);
+ }
+ }
+ return gradient;
+ },
+
+
+ /**
+ * Clears all values
+ *
+ * @method _initProps
+ * @private
+ */
+ _initProps: function() {
+ this._methods = [];
+ this._lineToMethods = [];
+ this._xcoords = [0];
+ this._ycoords = [0];
+ this._width = 0;
+ this._height = 0;
+ this._left = 0;
+ this._top = 0;
+ this._right = 0;
+ this._bottom = 0;
+ this._currentX = 0;
+ this._currentY = 0;
+ },
+
+ /**
+ * Indicates a drawing has completed.
+ *
+ * @property _drawingComplete
+ * @type Boolean
+ * @private
+ */
+ _drawingComplete: false,
+
+ /**
+ * Creates canvas element
+ *
+ * @method _createGraphic
+ * @return HTMLCanvasElement
+ * @private
+ */
+ _createGraphic: function() {
+ var graphic = Y.config.doc.createElement('canvas');
+ return graphic;
+ },
+
+ /**
+ * Returns the points on a curve
+ *
+ * @method getBezierData
+ * @param Array points Array containing the begin, end and control points of a curve.
+ * @param Number t The value for incrementing the next set of points.
+ * @return Array
+ * @private
+ */
+ getBezierData: function(points, t) {
+ var n = points.length,
+ tmp = [],
+ i,
+ j;
+
+ for (i = 0; i < n; ++i){
+ tmp[i] = [points[i][0], points[i][1]]; // save input
+ }
+
+ for (j = 1; j < n; ++j) {
+ for (i = 0; i < n - j; ++i) {
+ tmp[i][0] = (1 - t) * tmp[i][0] + t * tmp[parseInt(i + 1, 10)][0];
+ tmp[i][1] = (1 - t) * tmp[i][1] + t * tmp[parseInt(i + 1, 10)][1];
+ }
+ }
+ return [ tmp[0][0], tmp[0][1] ];
+ },
+
+ /**
+ * Calculates the bounding box for a curve
+ *
+ * @method _setCurveBoundingBox
+ * @param Array pts Array containing points for start, end and control points of a curve.
+ * @param Number w Width used to calculate the number of points to describe the curve.
+ * @param Number h Height used to calculate the number of points to describe the curve.
+ * @private
+ */
+ _setCurveBoundingBox: function(pts, w, h)
+ {
+ var i = 0,
+ left = this._currentX,
+ right = left,
+ top = this._currentY,
+ bottom = top,
+ len = Math.round(Math.sqrt((w * w) + (h * h))),
+ t = 1/len,
+ wt = this._stroke && this._strokeWeight ? this._strokeWeight : 0,
+ xy;
+ for(i = 0; i < len; ++i)
+ {
+ xy = this.getBezierData(pts, t * i);
+ left = isNaN(left) ? xy[0] : Math.min(xy[0], left);
+ right = isNaN(right) ? xy[0] : Math.max(xy[0], right);
+ top = isNaN(top) ? xy[1] : Math.min(xy[1], top);
+ bottom = isNaN(bottom) ? xy[1] : Math.max(xy[1], bottom);
+ }
+ left = Math.round(left * 10)/10;
+ right = Math.round(right * 10)/10;
+ top = Math.round(top * 10)/10;
+ bottom = Math.round(bottom * 10)/10;
+ this._trackSize(right + wt, bottom + wt);
+ this._trackSize(left - wt, top - wt);
+ },
+
+ /**
+ * Updates the size of the graphics object
+ *
+ * @method _trackSize
+ * @param {Number} w width
+ * @param {Number} h height
+ * @private
+ */
+ _trackSize: function(w, h) {
+ if (w > this._right) {
+ this._right = w;
+ }
+ if(w < this._left)
+ {
+ this._left = w;
+ }
+ if (h < this._top)
+ {
+ this._top = h;
+ }
+ if (h > this._bottom)
+ {
+ this._bottom = h;
+ }
+ this._width = this._right - this._left;
+ this._height = this._bottom - this._top;
+ }
+};
+Y.CanvasDrawing = CanvasDrawing;
+/**
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> implementation of the <a href="Shape.html">`Shape`</a> class.
+ * `CanvasShape` is not intended to be used directly. Instead, use the <a href="Shape.html">`Shape`</a> class.
+ * If the browser lacks <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities but has
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> capabilities, the <a href="Shape.html">`Shape`</a>
+ * class will point to the `CanvasShape` class.
+ *
+ * @module graphics
+ * @class CanvasShape
+ * @constructor
+ */
+CanvasShape = function()
+{
+ this._transforms = [];
+ this.matrix = new Y.Matrix();
+ CanvasShape.superclass.constructor.apply(this, arguments);
+};
+
+CanvasShape.NAME = "shape";
+
+Y.extend(CanvasShape, Y.GraphicBase, Y.mix({
+ /**
+ * Init method, invoked during construction.
+ * Calls `initializer` method.
+ *
+ * @method init
+ * @protected
+ */
+ init: function()
+ {
+ this.initializer.apply(this, arguments);
+ },
+
+ /**
+ * Initializes the shape
+ *
+ * @private
+ * @method _initialize
+ */
+ initializer: function(cfg)
+ {
+ var host = this,
+ graphic = cfg.graphic,
+ data = this.get("data");
+ host._initProps();
+ host.createNode();
+ host._xcoords = [0];
+ host._ycoords = [0];
+ if(graphic)
+ {
+ this._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.CanvasGraphic)
+ {
+ this._graphic = render;
+ }
+ else
+ {
+ render = Y.one(render);
+ graphic = new Y.CanvasGraphic({
+ 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 = Y.one(this.get("node"));
+ node.addClass(className);
+ },
+
+ /**
+ * 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 = Y.one(this.get("node"));
+ node.removeClass(className);
+ },
+
+ /**
+ * 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.get("graphic"),
+ parentXY = graphic.getXY(),
+ x = this.get("x"),
+ y = this.get("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.get("graphic"),
+ parentXY = graphic.getXY(),
+ x = xy[0] - parentXY[0],
+ y = xy[1] - parentXY[1];
+ this._set("x", x);
+ this._set("y", y);
+ this._updateNodePosition(x, y);
+ },
+
+ /**
+ * Determines whether the node is an ancestor of another HTML element in the DOM hierarchy.
+ *
+ * @method contains
+ * @param {CanvasShape | 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);
+ },
+
+ /**
+ * 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.one(this.get("node")).test(selector);
+ //return Y.Selector.test(this.node, selector);
+ },
+
+ /**
+ * 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;
+ },
+
+ /**
+ * Value function for fill attribute
+ *
+ * @method _getDefaultFill
+ * @return Object
+ * @private
+ */
+ _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
+ *
+ * @method _getDefaultStroke
+ * @return Object
+ * @private
+ */
+ _getDefaultStroke: function()
+ {
+ return {
+ weight: 1,
+ dashstyle: "none",
+ color: "#000",
+ opacity: 1.0
+ };
+ },
+
+ /**
+ * Left edge of the path
+ *
+ * @property _left
+ * @type Number
+ * @private
+ */
+ _left: 0,
+
+ /**
+ * Right edge of the path
+ *
+ * @property _right
+ * @type Number
+ * @private
+ */
+ _right: 0,
+
+ /**
+ * Top edge of the path
+ *
+ * @property _top
+ * @type Number
+ * @private
+ */
+ _top: 0,
+
+ /**
+ * Bottom edge of the path
+ *
+ * @property _bottom
+ * @type Number
+ * @private
+ */
+ _bottom: 0,
+
+ /**
+ * Creates the dom node for the shape.
+ *
+ * @method createNode
+ * @return HTMLElement
+ * @private
+ */
+ createNode: function()
+ {
+ var host = this,
+ node = Y.config.doc.createElement('canvas'),
+ id = host.get("id"),
+ concat = host._camelCaseConcat,
+ name = host.name;
+ host._context = node.getContext('2d');
+ node.setAttribute("overflow", "visible");
+ node.style.overflow = "visible";
+ if(!host.get("visible"))
+ {
+ node.style.visibility = "hidden";
+ }
+ node.setAttribute("id", id);
+ id = "#" + id;
+ host.node = node;
+ host.addClass(
+ _getClassName(SHAPE) +
+ " " +
+ _getClassName(concat(IMPLEMENTATION, SHAPE)) +
+ " " +
+ _getClassName(name) +
+ " " +
+ _getClassName(concat(IMPLEMENTATION, name))
+ );
+ },
+
+ /**
+ * 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
+ * @param {Object} stroke Properties of the `stroke` attribute.
+ * @private
+ */
+ _setStrokeProps: function(stroke)
+ {
+ var color,
+ weight,
+ opacity,
+ linejoin,
+ linecap,
+ dashstyle;
+ if(stroke)
+ {
+ color = stroke.color;
+ weight = PARSE_FLOAT(stroke.weight);
+ opacity = PARSE_FLOAT(stroke.opacity);
+ linejoin = stroke.linejoin || "round";
+ linecap = stroke.linecap || "butt";
+ dashstyle = stroke.dashstyle;
+ this._miterlimit = null;
+ this._dashstyle = (dashstyle && Y.Lang.isArray(dashstyle) && dashstyle.length > 1) ? dashstyle : null;
+ this._strokeWeight = weight;
+
+ if (IS_NUMBER(weight) && weight > 0)
+ {
+ this._stroke = 1;
+ }
+ else
+ {
+ this._stroke = 0;
+ }
+ if (IS_NUMBER(opacity)) {
+ this._strokeStyle = this._toRGBA(color, opacity);
+ }
+ else
+ {
+ this._strokeStyle = color;
+ }
+ this._linecap = linecap;
+ if(linejoin === "round" || linejoin === "bevel")
+ {
+ this._linejoin = linejoin;
+ }
+ else
+ {
+ linejoin = parseInt(linejoin, 10);
+ if(IS_NUMBER(linejoin))
+ {
+ this._miterlimit = Math.max(linejoin, 1);
+ this._linejoin = "miter";
+ }
+ }
+ }
+ else
+ {
+ this._stroke = 0;
+ }
+ },
+
+ /**
+ * 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();
+ }
+ },
+
+ /**
+ * Adds a fill to the shape node.
+ *
+ * @method _setFillProps
+ * @param {Object} fill Properties of the `fill` attribute.
+ * @private
+ */
+ _setFillProps: function(fill)
+ {
+ var isNumber = IS_NUMBER,
+ color,
+ opacity,
+ type;
+ if(fill)
+ {
+ color = fill.color;
+ type = fill.type;
+ if(type === "linear" || type === "radial")
+ {
+ this._fillType = type;
+ }
+ else if(color)
+ {
+ opacity = fill.opacity;
+ if (isNumber(opacity))
+ {
+ opacity = Math.max(0, Math.min(1, opacity));
+ color = this._toRGBA(color, opacity);
+ }
+ else
+ {
+ color = TORGB(color);
+ }
+
+ this._fillColor = color;
+ this._fillType = 'solid';
+ }
+ else
+ {
+ this._fillColor = null;
+ }
+ }
+ else
+ {
+ this._fillType = null;
+ this._fillColor = null;
+ }
+ },
+
+ /**
+ * 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(x, y)
+ {
+ this._translateX += x;
+ this._translateY += y;
+ 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(x)
+ {
+ this._translateX += x;
+ this._addTransform("translateX", arguments);
+ },
+
+ /**
+ * Performs a translate on the y-coordinate. When translating x and y coordinates,
+ * use the `translate` method.
+ *
+ * @method translateY
+ * @param {Number} y The value to translate.
+ */
+ translateY: function(y)
+ {
+ this._translateY += y;
+ 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);
+ },
+
+ /**
+ * Storage for the transform attribute.
+ *
+ * @property _transform
+ * @type String
+ * @private
+ */
+ _transform: "",
+
+ /**
+ * 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 node = this.node,
+ key,
+ transform,
+ transformOrigin = this.get("transformOrigin"),
+ matrix = this.matrix,
+ i,
+ len = this._transforms.length;
+
+ if(this._transforms && this._transforms.length > 0)
+ {
+ for(i = 0; i < len; ++i)
+ {
+ key = this._transforms[i].shift();
+ if(key)
+ {
+ matrix[key].apply(matrix, this._transforms[i]);
+ }
+ }
+ transform = matrix.toCSSText();
+ }
+
+ this._graphic.addToRedrawQueue(this);
+ transformOrigin = (100 * transformOrigin[0]) + "% " + (100 * transformOrigin[1]) + "%";
+ Y_DOM.setStyle(node, "transformOrigin", transformOrigin);
+ if(transform)
+ {
+ Y_DOM.setStyle(node, "transform", transform);
+ }
+ this._transforms = [];
+ },
+
+ /**
+ * Updates `Shape` based on attribute changes.
+ *
+ * @method _updateHandler
+ * @private
+ */
+ _updateHandler: function()
+ {
+ this._draw();
+ this._updateTransform();
+ },
+
+ /**
+ * Updates the shape.
+ *
+ * @method _draw
+ * @private
+ */
+ _draw: function()
+ {
+ var node = this.node;
+ this.clear();
+ this._closePath();
+ node.style.left = this.get("x") + "px";
+ node.style.top = this.get("y") + "px";
+ },
+
+ /**
+ * Completes a shape or drawing
+ *
+ * @method _closePath
+ * @private
+ */
+ _closePath: function()
+ {
+ if(!this._methods)
+ {
+ return;
+ }
+ var node = this.get("node"),
+ w = this._right - this._left,
+ h = this._bottom - this._top,
+ context = this._context,
+ methods = [],
+ cachedMethods = this._methods.concat(),
+ i,
+ j,
+ method,
+ args,
+ argsLen,
+ len = 0;
+ this._context.clearRect(0, 0, node.width, node.height);
+ if(this._methods)
+ {
+ len = cachedMethods.length;
+ if(!len || len < 1)
+ {
+ return;
+ }
+ for(i = 0; i < len; ++i)
+ {
+ methods[i] = cachedMethods[i].concat();
+ args = methods[i];
+ argsLen = (args[0] === "quadraticCurveTo" || args[0] === "bezierCurveTo") ? args.length : 3;
+ for(j = 1; j < argsLen; ++j)
+ {
+ if(j % 2 === 0)
+ {
+ args[j] = args[j] - this._top;
+ }
+ else
+ {
+ args[j] = args[j] - this._left;
+ }
+ }
+ }
+ node.setAttribute("width", Math.min(w, 2000));
+ node.setAttribute("height", Math.min(2000, h));
+ context.beginPath();
+ for(i = 0; i < len; ++i)
+ {
+ args = methods[i].concat();
+ if(args && args.length > 0)
+ {
+ method = args.shift();
+ if(method)
+ {
+ if(method === "closePath")
+ {
+ context.closePath();
+ this._strokeAndFill(context);
+ }
+ else if(method && method === "lineTo" && this._dashstyle)
+ {
+ args.unshift(this._xcoords[i] - this._left, this._ycoords[i] - this._top);
+ this._drawDashedLine.apply(this, args);
+ }
+ else
+ {
+ context[method].apply(context, args);
+ }
+ }
+ }
+ }
+
+ this._strokeAndFill(context);
+ this._drawingComplete = true;
+ this._clearAndUpdateCoords();
+ this._updateNodePosition();
+ this._methods = cachedMethods;
+ }
+ },
+
+ /**
+ * Completes a stroke and/or fill operation on the context.
+ *
+ * @method _strokeAndFill
+ * @param {Context} Reference to the context element of the canvas instance.
+ * @private
+ */
+ _strokeAndFill: function(context)
+ {
+ if (this._fillType)
+ {
+ if(this._fillType === "linear")
+ {
+ context.fillStyle = this._getLinearGradient();
+ }
+ else if(this._fillType === "radial")
+ {
+ context.fillStyle = this._getRadialGradient();
+ }
+ else
+ {
+ context.fillStyle = this._fillColor;
+ }
+ context.closePath();
+ context.fill();
+ }
+
+ if (this._stroke) {
+ if(this._strokeWeight)
+ {
+ context.lineWidth = this._strokeWeight;
+ }
+ context.lineCap = this._linecap;
+ context.lineJoin = this._linejoin;
+ if(this._miterlimit)
+ {
+ context.miterLimit = this._miterlimit;
+ }
+ context.strokeStyle = this._strokeStyle;
+ context.stroke();
+ }
+ },
+
+ /**
+ * Draws a dashed line between two points.
+ *
+ * @method _drawDashedLine
+ * @param {Number} xStart The x position of the start of the line
+ * @param {Number} yStart The y position of the start of the line
+ * @param {Number} xEnd The x position of the end of the line
+ * @param {Number} yEnd The y position of the end of the line
+ * @private
+ */
+ _drawDashedLine: function(xStart, yStart, xEnd, yEnd)
+ {
+ var context = this._context,
+ dashsize = this._dashstyle[0],
+ gapsize = this._dashstyle[1],
+ segmentLength = dashsize + gapsize,
+ xDelta = xEnd - xStart,
+ yDelta = yEnd - yStart,
+ delta = Math.sqrt(Math.pow(xDelta, 2) + Math.pow(yDelta, 2)),
+ segmentCount = Math.floor(Math.abs(delta / segmentLength)),
+ radians = Math.atan2(yDelta, xDelta),
+ xCurrent = xStart,
+ yCurrent = yStart,
+ i;
+ xDelta = Math.cos(radians) * segmentLength;
+ yDelta = Math.sin(radians) * segmentLength;
+
+ for(i = 0; i < segmentCount; ++i)
+ {
+ context.moveTo(xCurrent, yCurrent);
+ context.lineTo(xCurrent + Math.cos(radians) * dashsize, yCurrent + Math.sin(radians) * dashsize);
+ xCurrent += xDelta;
+ yCurrent += yDelta;
+ }
+
+ context.moveTo(xCurrent, yCurrent);
+ delta = Math.sqrt((xEnd - xCurrent) * (xEnd - xCurrent) + (yEnd - yCurrent) * (yEnd - yCurrent));
+
+ if(delta > dashsize)
+ {
+ context.lineTo(xCurrent + Math.cos(radians) * dashsize, yCurrent + Math.sin(radians) * dashsize);
+ }
+ else if(delta > 0)
+ {
+ context.lineTo(xCurrent + Math.cos(radians) * delta, yCurrent + Math.sin(radians) * delta);
+ }
+
+ context.moveTo(xEnd, yEnd);
+ },
+
+ /**
+ * 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,
+ w = this.get("width"),
+ h = this.get("height"),
+ x = this.get("x"),
+ y = this.get("y");
+ if(type === "path")
+ {
+ x = x + this._left;
+ y = y + this._top;
+ w = this._right - this._left;
+ h = this._bottom - this._top;
+ }
+ return this._getContentRect(w, h, x, y);
+ },
+
+ /**
+ * Calculates the bounding box for the shape.
+ *
+ * @method _getContentRect
+ * @param {Number} w width of the shape
+ * @param {Number} h height of the shape
+ * @param {Number} x x-coordinate of the shape
+ * @param {Number} y y-coordinate of the shape
+ * @private
+ */
+ _getContentRect: function(w, h, x, y)
+ {
+ var transformOrigin = this.get("transformOrigin"),
+ transformX = transformOrigin[0] * w,
+ transformY = transformOrigin[1] * h,
+ transforms = this.matrix.getTransformArray(this.get("transform")),
+ matrix = new Y.Matrix(),
+ i,
+ len = transforms.length,
+ transform,
+ key,
+ contentRect;
+ if(this._type === "path")
+ {
+ transformX = transformX + x;
+ transformY = transformY + y;
+ }
+ transformX = !isNaN(transformX) ? transformX : 0;
+ transformY = !isNaN(transformY) ? transformY : 0;
+ matrix.translate(transformX, transformY);
+ for(i = 0; i < len; i = i + 1)
+ {
+ transform = transforms[i];
+ key = transform.shift();
+ if(key)
+ {
+ matrix[key].apply(matrix, transform);
+ }
+ }
+ matrix.translate(-transformX, -transformY);
+ contentRect = matrix.getContentRect(w, h, x, y);
+ return contentRect;
+ },
+
+ /**
+ * 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.one(this.node).remove(true);
+ this._context = null;
+ this.node = null;
+ }
+ }
+}, Y.CanvasDrawing.prototype));
+
+CanvasShape.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._transforms = this.matrix.getTransformArray(val);
+ this._transform = val;
+ return val;
+ },
+
+ getter: function()
+ {
+ return this._transform;
+ }
+ },
+
+ /**
+ * Dom node for the shape
+ *
+ * @config node
+ * @type HTMLElement
+ * @readOnly
+ */
+ node: {
+ readOnly: true,
+
+ getter: function()
+ {
+ return this.node;
+ }
+ },
+
+ /**
+ * 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 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 the x position of shape.
+ *
+ * @config x
+ * @type Number
+ */
+ x: {
+ value: 0
+ },
+
+ /**
+ * Indicates the y position of shape.
+ *
+ * @config y
+ * @type Number
+ */
+ y: {
+ value: 0
+ },
+
+ /**
+ * Indicates whether the shape is visible.
+ *
+ * @config visible
+ * @type Boolean
+ */
+ visible: {
+ value: true,
+
+ setter: function(val){
+ var node = this.get("node"),
+ visibility = val ? "visible" : "hidden";
+ if(node)
+ {
+ 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>
+ * </dl>
+ * <p>The corresponding `SVGShape` class implements the following additional properties.</p>
+ * <dl>
+ * <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>
+ * <p>These properties are not currently implemented in `CanvasShape` or `VMLShape`.</p>
+ *
+ * @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;
+ }
+ }
+ this._setFillProps(fill);
+ 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;
+ }
+ }
+ val = (val) ? Y.merge(tmpl, val) : null;
+ this._setStrokeProps(val);
+ return val;
+ }
+ },
+
+ //Not used. Remove in future.
+ autoSize: {
+ value: false
+ },
+
+ // Only implemented in SVG
+ // Determines whether the instance will receive mouse events.
+ //
+ // @config pointerEvents
+ // @type string
+ //
+ pointerEvents: {
+ value: "visiblePainted"
+ },
+
+ /**
+ * 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 container Graphic.
+ *
+ * @config graphic
+ * @type Graphic
+ */
+ graphic: {
+ readOnly: true,
+
+ getter: function()
+ {
+ return this._graphic;
+ }
+ }
+};
+Y.CanvasShape = CanvasShape;
+/**
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> implementation of the <a href="Path.html">`Path`</a> class.
+ * `CanvasPath` is not intended to be used directly. Instead, use the <a href="Path.html">`Path`</a> class.
+ * If the browser lacks <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities but has
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> capabilities, the <a href="Path.html">`Path`</a>
+ * class will point to the `CanvasPath` class.
+ *
+ * @module graphics
+ * @class CanvasPath
+ * @extends CanvasShape
+ */
+CanvasPath = function()
+{
+ CanvasPath.superclass.constructor.apply(this, arguments);
+};
+CanvasPath.NAME = "path";
+Y.extend(CanvasPath, Y.CanvasShape, {
+ /**
+ * Indicates the type of shape
+ *
+ * @property _type
+ * @type String
+ * @private
+ */
+ _type: "path",
+
+ /**
+ * Draws the shape.
+ *
+ * @method _draw
+ * @private
+ */
+ _draw: function()
+ {
+ this._closePath();
+ this._updateTransform();
+ },
+
+ /**
+ * Creates the dom node for the shape.
+ *
+ * @method createNode
+ * @return HTMLElement
+ * @private
+ */
+ createNode: function()
+ {
+ var host = this,
+ node = Y.config.doc.createElement('canvas'),
+ name = host.name,
+ concat = host._camelCaseConcat,
+ id = host.get("id");
+ host._context = node.getContext('2d');
+ node.setAttribute("overflow", "visible");
+ node.setAttribute("pointer-events", "none");
+ node.style.pointerEvents = "none";
+ node.style.overflow = "visible";
+ node.setAttribute("id", id);
+ id = "#" + id;
+ host.node = node;
+ host.addClass(
+ _getClassName(SHAPE) +
+ " " +
+ _getClassName(concat(IMPLEMENTATION, SHAPE)) +
+ " " +
+ _getClassName(name) +
+ " " +
+ _getClassName(concat(IMPLEMENTATION, name))
+ );
+ },
+
+ /**
+ * Completes a drawing operation.
+ *
+ * @method end
+ */
+ end: function()
+ {
+ this._draw();
+ }
+});
+
+CanvasPath.ATTRS = Y.merge(Y.CanvasShape.ATTRS, {
+ /**
+ * Indicates the width of the shape
+ *
+ * @config width
+ * @type Number
+ */
+ width: {
+ getter: function()
+ {
+ var offset = this._stroke && this._strokeWeight ? (this._strokeWeight * 2) : 0;
+ return this._width - offset;
+ },
+
+ setter: function(val)
+ {
+ this._width = val;
+ return val;
+ }
+ },
+
+ /**
+ * Indicates the height of the shape
+ *
+ * @config height
+ * @type Number
+ */
+ height: {
+ getter: function()
+ {
+ var offset = this._stroke && this._strokeWeight ? (this._strokeWeight * 2) : 0;
+ return this._height - offset;
+ },
+
+ setter: function(val)
+ {
+ this._height = val;
+ return val;
+ }
+ },
+
+ /**
+ * Indicates the path used for the node.
+ *
+ * @config path
+ * @type String
+ * @readOnly
+ */
+ path: {
+ readOnly: true,
+
+ getter: function()
+ {
+ return this._path;
+ }
+ }
+});
+Y.CanvasPath = CanvasPath;
+/**
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> implementation of the <a href="Rect.html">`Rect`</a> class.
+ * `CanvasRect` is not intended to be used directly. Instead, use the <a href="Rect.html">`Rect`</a> class.
+ * If the browser lacks <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities but has
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> capabilities, the <a href="Rect.html">`Rect`</a>
+ * class will point to the `CanvasRect` class.
+ *
+ * @module graphics
+ * @class CanvasRect
+ * @constructor
+ */
+CanvasRect = function()
+{
+ CanvasRect.superclass.constructor.apply(this, arguments);
+};
+CanvasRect.NAME = "rect";
+Y.extend(CanvasRect, Y.CanvasShape, {
+ /**
+ * Indicates the type of shape
+ *
+ * @property _type
+ * @type String
+ * @private
+ */
+ _type: "rect",
+
+ /**
+ * Draws the shape.
+ *
+ * @method _draw
+ * @private
+ */
+ _draw: function()
+ {
+ var w = this.get("width"),
+ h = this.get("height");
+ this.clear();
+ this.drawRect(0, 0, w, h);
+ this._closePath();
+ }
+});
+CanvasRect.ATTRS = Y.CanvasShape.ATTRS;
+Y.CanvasRect = CanvasRect;
+/**
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> implementation of the <a href="Ellipse.html">`Ellipse`</a> class.
+ * `CanvasEllipse` is not intended to be used directly. Instead, use the <a href="Ellipse.html">`Ellipse`</a> class.
+ * If the browser lacks <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities but has
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> capabilities, the <a href="Ellipse.html">`Ellipse`</a>
+ * class will point to the `CanvasEllipse` class.
+ *
+ * @module graphics
+ * @class CanvasEllipse
+ * @constructor
+ */
+CanvasEllipse = function()
+{
+ CanvasEllipse.superclass.constructor.apply(this, arguments);
+};
+
+CanvasEllipse.NAME = "ellipse";
+
+Y.extend(CanvasEllipse, CanvasShape, {
+ /**
+ * Indicates the type of shape
+ *
+ * @property _type
+ * @type String
+ * @private
+ */
+ _type: "ellipse",
+
+ /**
+ * Draws the shape.
+ *
+ * @method _draw
+ * @private
+ */
+ _draw: function()
+ {
+ var w = this.get("width"),
+ h = this.get("height");
+ this.clear();
+ this.drawEllipse(0, 0, w, h);
+ this._closePath();
+ }
+});
+CanvasEllipse.ATTRS = Y.merge(CanvasShape.ATTRS, {
+ /**
+ * Horizontal radius for the ellipse.
+ *
+ * @config xRadius
+ * @type Number
+ */
+ xRadius: {
+ setter: function(val)
+ {
+ this.set("width", val * 2);
+ },
+
+ getter: function()
+ {
+ var val = this.get("width");
+ if(val)
+ {
+ val *= 0.5;
+ }
+ return val;
+ }
+ },
+
+ /**
+ * Vertical radius for the ellipse.
+ *
+ * @config yRadius
+ * @type Number
+ * @readOnly
+ */
+ yRadius: {
+ setter: function(val)
+ {
+ this.set("height", val * 2);
+ },
+
+ getter: function()
+ {
+ var val = this.get("height");
+ if(val)
+ {
+ val *= 0.5;
+ }
+ return val;
+ }
+ }
+});
+Y.CanvasEllipse = CanvasEllipse;
+/**
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> implementation of the <a href="Circle.html">`Circle`</a> class.
+ * `CanvasCircle` is not intended to be used directly. Instead, use the <a href="Circle.html">`Circle`</a> class.
+ * If the browser lacks <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities but has
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> capabilities, the <a href="Circle.html">`Circle`</a>
+ * class will point to the `CanvasCircle` class.
+ *
+ * @module graphics
+ * @class CanvasCircle
+ * @constructor
+ */
+CanvasCircle = function()
+{
+ CanvasCircle.superclass.constructor.apply(this, arguments);
+};
+
+CanvasCircle.NAME = "circle";
+
+Y.extend(CanvasCircle, Y.CanvasShape, {
+ /**
+ * Indicates the type of shape
+ *
+ * @property _type
+ * @type String
+ * @private
+ */
+ _type: "circle",
+
+ /**
+ * Draws the shape.
+ *
+ * @method _draw
+ * @private
+ */
+ _draw: function()
+ {
+ var radius = this.get("radius");
+ if(radius)
+ {
+ this.clear();
+ this.drawCircle(0, 0, radius);
+ this._closePath();
+ }
+ }
+});
+
+CanvasCircle.ATTRS = Y.merge(Y.CanvasShape.ATTRS, {
+ /**
+ * Indicates the width of the shape
+ *
+ * @config width
+ * @type Number
+ */
+ width: {
+ setter: function(val)
+ {
+ this.set("radius", val/2);
+ return val;
+ },
+
+ getter: function()
+ {
+ return this.get("radius") * 2;
+ }
+ },
+
+ /**
+ * Indicates the height of the shape
+ *
+ * @config height
+ * @type Number
+ */
+ height: {
+ setter: function(val)
+ {
+ this.set("radius", val/2);
+ return val;
+ },
+
+ getter: function()
+ {
+ return this.get("radius") * 2;
+ }
+ },
+
+ /**
+ * Radius of the circle
+ *
+ * @config radius
+ * @type Number
+ */
+ radius: {
+ lazyAdd: false
+ }
+});
+Y.CanvasCircle = CanvasCircle;
+/**
+ * Draws pie slices
+ *
+ * @module graphics
+ * @class CanvasPieSlice
+ * @constructor
+ */
+CanvasPieSlice = function()
+{
+ CanvasPieSlice.superclass.constructor.apply(this, arguments);
+};
+CanvasPieSlice.NAME = "canvasPieSlice";
+Y.extend(CanvasPieSlice, Y.CanvasShape, {
+ /**
+ * Indicates the type of shape
+ *
+ * @property _type
+ * @type String
+ * @private
+ */
+ _type: "path",
+
+ /**
+ * Change event listener
+ *
+ * @private
+ * @method _updateHandler
+ */
+ _draw: function()
+ {
+ var x = this.get("cx"),
+ y = this.get("cy"),
+ startAngle = this.get("startAngle"),
+ arc = this.get("arc"),
+ radius = this.get("radius");
+ this.clear();
+ this._left = x;
+ this._right = radius;
+ this._top = y;
+ this._bottom = radius;
+ this.drawWedge(x, y, startAngle, arc, radius);
+ this.end();
+ }
+ });
+CanvasPieSlice.ATTRS = Y.mix({
+ cx: {
+ value: 0
+ },
+
+ cy: {
+ value: 0
+ },
+ /**
+ * Starting angle in relation to a circle in which to begin the pie slice drawing.
+ *
+ * @config startAngle
+ * @type Number
+ */
+ startAngle: {
+ value: 0
+ },
+
+ /**
+ * Arc of the slice.
+ *
+ * @config arc
+ * @type Number
+ */
+ arc: {
+ value: 0
+ },
+
+ /**
+ * Radius of the circle in which the pie slice is drawn
+ *
+ * @config radius
+ * @type Number
+ */
+ radius: {
+ value: 0
+ }
+}, Y.CanvasShape.ATTRS);
+Y.CanvasPieSlice = CanvasPieSlice;
+/**
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> implementation of the `Graphic` class.
+ * `CanvasGraphic` is not intended to be used directly. Instead, use the <a href="Graphic.html">`Graphic`</a> class.
+ * If the browser lacks <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities but has
+ * <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a> capabilities, the <a href="Graphic.html">`Graphic`</a>
+ * class will point to the `CanvasGraphic` class.
+ *
+ * @module graphics
+ * @class CanvasGraphic
+ * @constructor
+ */
+function CanvasGraphic() {
+
+ CanvasGraphic.superclass.constructor.apply(this, arguments);
+}
+
+CanvasGraphic.NAME = "canvasGraphic";
+
+CanvasGraphic.ATTRS = {
+ /**
+ * 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
+ */
+ render: {},
+
+ /**
+ * 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;
+ }
+ },
+
+ /**
+ * Key value pairs in which a shape instance is associated with its id.
+ *
+ * @config shapes
+ * @type Object
+ * @readOnly
+ */
+ shapes: {
+ readOnly: true,
+
+ getter: function()
+ {
+ return this._shapes;
+ }
+ },
+
+ /**
+ * Object containing size and coordinate data for the content of a Graphic in relation to the graphic instance's position.
+ *
+ * @config contentBounds
+ * @type Object
+ * @readOnly
+ */
+ contentBounds: {
+ readOnly: true,
+
+ getter: function()
+ {
+ return this._contentBounds;
+ }
+ },
+
+ /**
+ * The outermost html element of the Graphic instance.
+ *
+ * @config node
+ * @type HTMLElement
+ * @readOnly
+ */
+ node: {
+ readOnly: true,
+
+ getter: function()
+ {
+ return this._node;
+ }
+ },
+
+ /**
+ * Indicates the width of the `Graphic`.
+ *
+ * @config width
+ * @type Number
+ */
+ width: {
+ setter: function(val)
+ {
+ if(this._node)
+ {
+ this._node.style.width = val + "px";
+ }
+ return val;
+ }
+ },
+
+ /**
+ * Indicates the height of the `Graphic`.
+ *
+ * @config height
+ * @type Number
+ */
+ height: {
+ setter: function(val)
+ {
+ if(this._node)
+ {
+ this._node.style.height = val + "px";
+ }
+ return val;
+ }
+ },
+
+ /**
+ * 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
+ */
+ autoSize: {
+ value: 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
+ */
+ preserveAspectRatio: {
+ value: "xMidYMid"
+ },
+
+ /**
+ * The contentBounds will resize to greater values but not smaller values. (for performance)
+ * When resizing the contentBounds down is desirable, set the resizeDown value to true.
+ *
+ * @config resizeDown
+ * @type Boolean
+ */
+ resizeDown: {
+ value: false
+ },
+
+ /**
+ * Indicates the x-coordinate for the instance.
+ *
+ * @config x
+ * @type Number
+ */
+ x: {
+ getter: function()
+ {
+ return this._x;
+ },
+
+ setter: function(val)
+ {
+ this._x = val;
+ if(this._node)
+ {
+ this._node.style.left = val + "px";
+ }
+ return val;
+ }
+ },
+
+ /**
+ * Indicates the y-coordinate for the instance.
+ *
+ * @config y
+ * @type Number
+ */
+ y: {
+ getter: function()
+ {
+ return this._y;
+ },
+
+ setter: function(val)
+ {
+ this._y = val;
+ if(this._node)
+ {
+ this._node.style.top = val + "px";
+ }
+ return val;
+ }
+ },
+
+ /**
+ * 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
+ */
+ autoDraw: {
+ value: true
+ },
+
+ /**
+ * Indicates whether the `Graphic` and its children are visible.
+ *
+ * @config visible
+ * @type Boolean
+ */
+ visible: {
+ value: true,
+
+ setter: function(val)
+ {
+ this._toggleVisible(val);
+ return val;
+ }
+ }
+};
+
+Y.extend(CanvasGraphic, Y.GraphicBase, {
+ /**
+ * 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,
+ attr = arguments[0],
+ redrawAttrs = {
+ autoDraw: true,
+ autoSize: true,
+ preserveAspectRatio: true,
+ resizeDown: true
+ },
+ key,
+ forceRedraw = false;
+ AttributeLite.prototype.set.apply(host, arguments);
+ if(host._state.autoDraw === true && Y.Object.size(this._shapes) > 0)
+ {
+ if(Y_LANG.isString && redrawAttrs[attr])
+ {
+ forceRedraw = true;
+ }
+ else if(Y_LANG.isObject(attr))
+ {
+ for(key in redrawAttrs)
+ {
+ if(redrawAttrs.hasOwnProperty(key) && attr[key])
+ {
+ forceRedraw = true;
+ break;
+ }
+ }
+ }
+ }
+ if(forceRedraw)
+ {
+ host._redraw();
+ }
+ },
+
+ /**
+ * Storage for `x` attribute.
+ *
+ * @property _x
+ * @type Number
+ * @private
+ */
+ _x: 0,
+
+ /**
+ * Storage for `y` attribute.
+ *
+ * @property _y
+ * @type Number
+ * @private
+ */
+ _y: 0,
+
+ /**
+ * Gets the current position of the graphic instance in page coordinates.
+ *
+ * @method getXY
+ * @return Array The XY position of the shape.
+ */
+ getXY: function()
+ {
+ var node = Y.one(this._node),
+ xy;
+ if(node)
+ {
+ xy = node.getXY();
+ }
+ return xy;
+ },
+
+ /**
+ * Initializes the class.
+ *
+ * @method initializer
+ * @param {Object} config Optional attributes
+ * @private
+ */
+ initializer: function() {
+ var render = this.get("render"),
+ visibility = this.get("visible") ? "visible" : "hidden",
+ w = this.get("width") || 0,
+ h = this.get("height") || 0;
+ this._shapes = {};
+ this._redrawQueue = {};
+ this._contentBounds = {
+ left: 0,
+ top: 0,
+ right: 0,
+ bottom: 0
+ };
+ this._node = DOCUMENT.createElement('div');
+ this._node.style.position = "absolute";
+ this._node.style.visibility = visibility;
+ this.set("width", w);
+ this.set("height", h);
+ if(render)
+ {
+ this.render(render);
+ }
+ },
+
+ /**
+ * Adds the graphics node to the dom.
+ *
+ * @method render
+ * @param {HTMLElement} parentNode node in which to render the graphics node into.
+ */
+ render: function(render) {
+ var parentNode = Y.one(render),
+ node = this._node,
+ w = this.get("width") || parseInt(parentNode.getComputedStyle("width"), 10),
+ h = this.get("height") || parseInt(parentNode.getComputedStyle("height"), 10);
+ parentNode = parentNode || DOCUMENT.body;
+ parentNode.appendChild(node);
+ node.style.display = "block";
+ node.style.position = "absolute";
+ node.style.left = "0px";
+ node.style.top = "0px";
+ this.set("width", w);
+ this.set("height", h);
+ this.parentNode = parentNode;
+ return this;
+ },
+
+ /**
+ * Removes all nodes.
+ *
+ * @method destroy
+ */
+ destroy: function()
+ {
+ this.removeAllShapes();
+ if(this._node)
+ {
+ this._removeChildren(this._node);
+ Y.one(this._node).destroy();
+ }
+ },
+
+ /**
+ * Generates a shape instance by type.
+ *
+ * @method addShape
+ * @param {Object} cfg attributes for the shape
+ * @return Shape
+ */
+ addShape: function(cfg)
+ {
+ cfg.graphic = this;
+ if(!this.get("visible"))
+ {
+ cfg.visible = false;
+ }
+ var ShapeClass = this._getShapeClass(cfg.type),
+ shape = new ShapeClass(cfg);
+ this._appendShape(shape);
+ return shape;
+ },
+
+ /**
+ * Adds a shape instance to the graphic instance.
+ *
+ * @method _appendShape
+ * @param {Shape} shape The shape instance to be added to the graphic.
+ * @private
+ */
+ _appendShape: function(shape)
+ {
+ var node = shape.node,
+ parentNode = this._frag || this._node;
+ if(this.get("autoDraw"))
+ {
+ parentNode.appendChild(node);
+ }
+ else
+ {
+ this._getDocFrag().appendChild(node);
+ }
+ },
+
+ /**
+ * 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.
+ */
+ removeShape: function(shape)
+ {
+ if(!(shape instanceof CanvasShape))
+ {
+ if(Y_LANG.isString(shape))
+ {
+ shape = this._shapes[shape];
+ }
+ }
+ if(shape && shape instanceof CanvasShape)
+ {
+ shape._destroy();
+ delete this._shapes[shape.get("id")];
+ }
+ if(this.get("autoDraw"))
+ {
+ this._redraw();
+ }
+ return shape;
+ },
+
+ /**
+ * Removes all shape instances from the dom.
+ *
+ * @method removeAllShapes
+ */
+ removeAllShapes: function()
+ {
+ var shapes = this._shapes,
+ i;
+ for(i in shapes)
+ {
+ if(shapes.hasOwnProperty(i))
+ {
+ shapes[i].destroy();
+ }
+ }
+ this._shapes = {};
+ },
+
+ /**
+ * Clears the graphics object.
+ *
+ * @method clear
+ */
+ clear: function() {
+ this.removeAllShapes();
+ },
+
+ /**
+ * Removes all child nodes.
+ *
+ * @method _removeChildren
+ * @param {HTMLElement} node
+ * @private
+ */
+ _removeChildren: function(node)
+ {
+ if(node && node.hasChildNodes())
+ {
+ var child;
+ while(node.firstChild)
+ {
+ child = node.firstChild;
+ this._removeChildren(child);
+ node.removeChild(child);
+ }
+ }
+ },
+
+ /**
+ * Toggles visibility
+ *
+ * @method _toggleVisible
+ * @param {Boolean} val indicates visibilitye
+ * @private
+ */
+ _toggleVisible: function(val)
+ {
+ var i,
+ shapes = this._shapes,
+ visibility = val ? "visible" : "hidden";
+ if(shapes)
+ {
+ for(i in shapes)
+ {
+ if(shapes.hasOwnProperty(i))
+ {
+ shapes[i].set("visible", val);
+ }
+ }
+ }
+ if(this._node)
+ {
+ this._node.style.visibility = visibility;
+ }
+ },
+
+ /**
+ * Returns a shape class. Used by `addShape`.
+ *
+ * @method _getShapeClass
+ * @param {Shape | String} val Indicates which shape class.
+ * @return Function
+ * @private
+ */
+ _getShapeClass: function(val)
+ {
+ var shape = this._shapeClass[val];
+ if(shape)
+ {
+ return shape;
+ }
+ return val;
+ },
+
+ /**
+ * Look up for shape classes. Used by `addShape` to retrieve a class for instantiation.
+ *
+ * @property _shapeClass
+ * @type Object
+ * @private
+ */
+ _shapeClass: {
+ circle: Y.CanvasCircle,
+ rect: Y.CanvasRect,
+ path: Y.CanvasPath,
+ ellipse: Y.CanvasEllipse,
+ pieslice: Y.CanvasPieSlice
+ },
+
+ /**
+ * 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
+ */
+ getShapeById: function(id)
+ {
+ var shape = this._shapes[id];
+ return shape;
+ },
+
+ /**
+ * Allows for creating multiple shapes in order to batch appending and redraw operations.
+ *
+ * @method batch
+ * @param {Function} method Method to execute.
+ */
+ batch: function(method)
+ {
+ var autoDraw = this.get("autoDraw");
+ this.set("autoDraw", false);
+ method();
+ this.set("autoDraw", autoDraw);
+ },
+
+ /**
+ * Returns a document fragment to for attaching shapes.
+ *
+ * @method _getDocFrag
+ * @return DocumentFragment
+ * @private
+ */
+ _getDocFrag: function()
+ {
+ if(!this._frag)
+ {
+ this._frag = DOCUMENT.createDocumentFragment();
+ }
+ return this._frag;
+ },
+
+ /**
+ * Redraws all shapes.
+ *
+ * @method _redraw
+ * @private
+ */
+ _redraw: function()
+ {
+ var autoSize = this.get("autoSize"),
+ preserveAspectRatio = this.get("preserveAspectRatio"),
+ box = this.get("resizeDown") ? this._getUpdatedContentBounds() : this._contentBounds,
+ contentWidth,
+ contentHeight,
+ w,
+ h,
+ xScale,
+ yScale,
+ translateX = 0,
+ translateY = 0,
+ matrix,
+ node = this.get("node");
+ if(autoSize)
+ {
+ if(autoSize === "sizeContentToGraphic")
+ {
+ contentWidth = box.right - box.left;
+ contentHeight = box.bottom - box.top;
+ w = parseFloat(Y_DOM.getComputedStyle(node, "width"));
+ h = parseFloat(Y_DOM.getComputedStyle(node, "height"));
+ matrix = new Y.Matrix();
+ if(preserveAspectRatio === "none")
+ {
+ xScale = w/contentWidth;
+ yScale = h/contentHeight;
+ }
+ else
+ {
+ if(contentWidth/contentHeight !== w/h)
+ {
+ if(contentWidth * h/contentHeight > w)
+ {
+ xScale = yScale = w/contentWidth;
+ translateY = this._calculateTranslate(preserveAspectRatio.slice(5).toLowerCase(), contentHeight * w/contentWidth, h);
+ }
+ else
+ {
+ xScale = yScale = h/contentHeight;
+ translateX = this._calculateTranslate(preserveAspectRatio.slice(1, 4).toLowerCase(), contentWidth * h/contentHeight, w);
+ }
+ }
+ }
+ Y_DOM.setStyle(node, "transformOrigin", "0% 0%");
+ translateX = translateX - (box.left * xScale);
+ translateY = translateY - (box.top * yScale);
+ matrix.translate(translateX, translateY);
+ matrix.scale(xScale, yScale);
+ Y_DOM.setStyle(node, "transform", matrix.toCSSText());
+ }
+ else
+ {
+ this.set("width", box.right);
+ this.set("height", box.bottom);
+ }
+ }
+ if(this._frag)
+ {
+ this._node.appendChild(this._frag);
+ this._frag = null;
+ }
+ },
+
+ /**
+ * Determines the value for either an x or y value to be used for the <code>translate</code> of the Graphic.
+ *
+ * @method _calculateTranslate
+ * @param {String} position The position for placement. Possible values are min, mid and max.
+ * @param {Number} contentSize The total size of the content.
+ * @param {Number} boundsSize The total size of the Graphic.
+ * @return Number
+ * @private
+ */
+ _calculateTranslate: function(position, contentSize, boundsSize)
+ {
+ var ratio = boundsSize - contentSize,
+ coord;
+ switch(position)
+ {
+ case "mid" :
+ coord = ratio * 0.5;
+ break;
+ case "max" :
+ coord = ratio;
+ break;
+ default :
+ coord = 0;
+ break;
+ }
+ return coord;
+ },
+
+ /**
+ * Adds a shape to the redraw queue and calculates the contentBounds. Used internally
+ * by `Shape` instances.
+ *
+ * @method addToRedrawQueue
+ * @param Shape shape The shape instance to add to the queue
+ * @protected
+ */
+ addToRedrawQueue: function(shape)
+ {
+ var shapeBox,
+ box;
+ this._shapes[shape.get("id")] = shape;
+ if(!this.get("resizeDown"))
+ {
+ shapeBox = shape.getBounds();
+ box = this._contentBounds;
+ box.left = box.left < shapeBox.left ? box.left : shapeBox.left;
+ box.top = box.top < shapeBox.top ? box.top : shapeBox.top;
+ box.right = box.right > shapeBox.right ? box.right : shapeBox.right;
+ box.bottom = box.bottom > shapeBox.bottom ? box.bottom : shapeBox.bottom;
+ this._contentBounds = box;
+ }
+ if(this.get("autoDraw"))
+ {
+ this._redraw();
+ }
+ },
+
+ /**
+ * Recalculates and returns the `contentBounds` for the `Graphic` instance.
+ *
+ * @method _getUpdatedContentBounds
+ * @return {Object}
+ * @private
+ */
+ _getUpdatedContentBounds: function()
+ {
+ var bounds,
+ i,
+ shape,
+ queue = this._shapes,
+ box = {};
+ for(i in queue)
+ {
+ if(queue.hasOwnProperty(i))
+ {
+ shape = queue[i];
+ bounds = shape.getBounds();
+ box.left = Y_LANG.isNumber(box.left) ? Math.min(box.left, bounds.left) : bounds.left;
+ box.top = Y_LANG.isNumber(box.top) ? Math.min(box.top, bounds.top) : bounds.top;
+ box.right = Y_LANG.isNumber(box.right) ? Math.max(box.right, bounds.right) : bounds.right;
+ box.bottom = Y_LANG.isNumber(box.bottom) ? Math.max(box.bottom, bounds.bottom) : bounds.bottom;
+ }
+ }
+ box.left = Y_LANG.isNumber(box.left) ? box.left : 0;
+ box.top = Y_LANG.isNumber(box.top) ? box.top : 0;
+ box.right = Y_LANG.isNumber(box.right) ? box.right : 0;
+ box.bottom = Y_LANG.isNumber(box.bottom) ? box.bottom : 0;
+ this._contentBounds = box;
+ return box;
+ },
+
+ /**
+ * Inserts shape on the top of the tree.
+ *
+ * @method _toFront
+ * @param {CanvasShape} Shape to add.
+ * @private
+ */
+ _toFront: function(shape)
+ {
+ var contentNode = this.get("node");
+ if(shape instanceof Y.CanvasShape)
+ {
+ shape = shape.get("node");
+ }
+ if(contentNode && shape)
+ {
+ contentNode.appendChild(shape);
+ }
+ },
+
+ /**
+ * Inserts shape as the first child of the content node.
+ *
+ * @method _toBack
+ * @param {CanvasShape} Shape to add.
+ * @private
+ */
+ _toBack: function(shape)
+ {
+ var contentNode = this.get("node"),
+ targetNode;
+ if(shape instanceof Y.CanvasShape)
+ {
+ shape = shape.get("node");
+ }
+ if(contentNode && shape)
+ {
+ targetNode = contentNode.firstChild;
+ if(targetNode)
+ {
+ contentNode.insertBefore(shape, targetNode);
+ }
+ else
+ {
+ contentNode.appendChild(shape);
+ }
+ }
+ }
+});
+
+Y.CanvasGraphic = CanvasGraphic;
+
+
+}, '3.10.3', {"requires": ["graphics"]});