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moodle/lib/yuilib/3.17.2/graphics-svg/graphics-svg.js

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/*
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-svg', function (Y, NAME) {
var IMPLEMENTATION = "svg",
SHAPE = "shape",
SPLITPATHPATTERN = /[a-z][^a-z]*/ig,
SPLITARGSPATTERN = /[\-]?[0-9]*[0-9|\.][0-9]*/g,
Y_LANG = Y.Lang,
AttributeLite = Y.AttributeLite,
SVGGraphic,
SVGShape,
SVGCircle,
SVGRect,
SVGPath,
SVGEllipse,
SVGPieSlice,
DOCUMENT = Y.config.doc,
_getClassName = Y.ClassNameManager.getClassName;
function SVGDrawing(){}
/**
* <a href="http://www.w3.org/TR/SVG/">SVG</a> implementation of the <a href="Drawing.html">`Drawing`</a> class.
* `SVGDrawing` is not intended to be used directly. Instead, use the <a href="Drawing.html">`Drawing`</a> class.
* If the browser has <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities, the <a href="Drawing.html">`Drawing`</a>
* class will point to the `SVGDrawing` class.
*
* @module graphics
* @class SVGDrawing
* @constructor
*/
SVGDrawing.prototype = {
/**
* Rounds a value to the nearest hundredth.
*
* @method _round
* @param {Number} val Value to be rounded.
* @return Number
* @private
*/
_round: function(val) {
return Math.round(val * 100)/100;
},
/**
* 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,
/**
* Indicates the type of shape
*
* @private
* @property _type
* @readOnly
* @type String
*/
_type: "path",
/**
* 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 relativeCurveTo
* @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,
pts,
cp1x,
cp1y,
cp2x,
cp2y,
x,
y,
right,
left,
bottom,
top,
i,
len,
pathArrayLen,
currentArray,
command = relative ? "c" : "C",
relativeX = relative ? parseFloat(this._currentX) : 0,
relativeY = relative ? parseFloat(this._currentY) : 0;
this._pathArray = this._pathArray || [];
if(this._pathType !== command)
{
this._pathType = command;
currentArray = [command];
this._pathArray.push(currentArray);
}
else
{
currentArray = this._pathArray[Math.max(0, this._pathArray.length - 1)];
if(!currentArray)
{
currentArray = [];
this._pathArray.push(currentArray);
}
}
pathArrayLen = this._pathArray.length - 1;
this._pathArray[pathArrayLen] = this._pathArray[pathArrayLen].concat(args);
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;
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 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
*/
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,
pathArrayLen,
currentArray,
w,
h,
pts,
right,
left,
bottom,
top,
i,
len,
command = relative ? "q" : "Q",
relativeX = relative ? parseFloat(this._currentX) : 0,
relativeY = relative ? parseFloat(this._currentY) : 0;
this._pathArray = this._pathArray || [];
if(this._pathType !== command)
{
this._pathType = command;
currentArray = [command];
this._pathArray.push(currentArray);
}
else
{
currentArray = this._pathArray[Math.max(0, this._pathArray.length - 1)];
if(!currentArray)
{
currentArray = [];
this._pathArray.push(currentArray);
}
}
pathArrayLen = this._pathArray.length - 1;
this._pathArray[pathArrayLen] = this._pathArray[pathArrayLen].concat(args);
len = args.length - 3;
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;
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._currentX = x;
this._currentY = y;
}
},
/**
* 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.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 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
*/
drawRoundRect: function(x, y, w, h, ew, eh) {
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 circle.
*
* @method drawCircle
* @param {Number} x y-coordinate
* @param {Number} y x-coordinate
* @param {Number} r radius
* @chainable
* @protected
*/
drawCircle: function(x, y, radius) {
var circum = radius * 2;
this._drawingComplete = false;
this._trackSize(x, y);
this._trackSize(x + circum, y + circum);
this._pathArray = this._pathArray || [];
this._pathArray.push(["M", x + radius, y]);
this._pathArray.push(["A", radius, radius, 0, 1, 0, x + radius, y + circum]);
this._pathArray.push(["A", radius, radius, 0, 1, 0, x + radius, y]);
this._currentX = x;
this._currentY = y;
return this;
},
/**
* 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
*/
drawEllipse: function(x, y, w, h) {
var radius = w * 0.5,
yRadius = h * 0.5;
this._drawingComplete = false;
this._trackSize(x, y);
this._trackSize(x + w, y + h);
this._pathArray = this._pathArray || [];
this._pathArray.push(["M", x + radius, y]);
this._pathArray.push(["A", radius, yRadius, 0, 1, 0, x + radius, y + h]);
this._pathArray.push(["A", radius, yRadius, 0, 1, 0, x + radius, y]);
this._currentX = x;
this._currentY = y;
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 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 segs,
segAngle,
theta,
angle,
angleMid,
ax,
ay,
bx,
by,
cx,
cy,
i,
diameter = radius * 2,
currentArray,
pathArrayLen;
this._pathArray = this._pathArray || [];
yRadius = yRadius || radius;
if(this._pathType !== "M")
{
this._pathType = "M";
currentArray = ["M"];
this._pathArray.push(currentArray);
}
else
{
currentArray = this._getCurrentArray();
}
pathArrayLen = this._pathArray.length - 1;
this._pathArray[pathArrayLen].push(x);
this._pathArray[pathArrayLen].push(x);
// 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;
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._pathType = "L";
pathArrayLen++;
this._pathArray[pathArrayLen] = ["L"];
this._pathArray[pathArrayLen].push(this._round(ax));
this._pathArray[pathArrayLen].push(this._round(ay));
pathArrayLen++;
this._pathType = "Q";
this._pathArray[pathArrayLen] = ["Q"];
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._pathArray[pathArrayLen].push(this._round(cx));
this._pathArray[pathArrayLen].push(this._round(cy));
this._pathArray[pathArrayLen].push(this._round(bx));
this._pathArray[pathArrayLen].push(this._round(by));
}
}
this._currentX = x;
this._currentY = y;
this._trackSize(diameter, diameter);
return this;
},
/**
* 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
*/
lineTo: function()
{
this._lineTo.apply(this, [Y.Array(arguments), false]);
return this;
},
/**
* 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
*/
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,
pathArrayLen,
currentArray,
x,
y,
command = relative ? "l" : "L",
relativeX = relative ? parseFloat(this._currentX) : 0,
relativeY = relative ? parseFloat(this._currentY) : 0;
this._pathArray = this._pathArray || [];
this._shapeType = "path";
len = args.length;
if(this._pathType !== command)
{
this._pathType = command;
currentArray = [command];
this._pathArray.push(currentArray);
}
else
{
currentArray = this._getCurrentArray();
}
pathArrayLen = this._pathArray.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]);
this._pathArray[pathArrayLen].push(x);
this._pathArray[pathArrayLen].push(y);
x = x + relativeX;
y = y + relativeY;
this._currentX = x;
this._currentY = y;
this._trackSize.apply(this, [x, y]);
}
}
else
{
for (i = 0; i < len; ++i) {
x = parseFloat(args[i][0]);
y = parseFloat(args[i][1]);
this._pathArray[pathArrayLen].push(x);
this._pathArray[pathArrayLen].push(y);
this._currentX = x;
this._currentY = y;
x = x + relativeX;
y = y + relativeY;
this._trackSize.apply(this, [x, y]);
}
}
},
/**
* 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 pathArrayLen,
currentArray,
x = parseFloat(args[0]),
y = parseFloat(args[1]),
command = relative ? "m" : "M",
relativeX = relative ? parseFloat(this._currentX) : 0,
relativeY = relative ? parseFloat(this._currentY) : 0;
this._pathArray = this._pathArray || [];
this._pathType = command;
currentArray = [command];
this._pathArray.push(currentArray);
pathArrayLen = this._pathArray.length - 1;
this._pathArray[pathArrayLen] = this._pathArray[pathArrayLen].concat([x, y]);
x = x + relativeX;
y = y + relativeY;
this._currentX = x;
this._currentY = y;
this._trackSize(x, y);
},
/**
* Completes a drawing operation.
*
* @method end
* @chainable
*/
end: function()
{
this._closePath();
return this;
},
/**
* Clears the path.
*
* @method clear
* @chainable
*/
clear: function()
{
this._currentX = 0;
this._currentY = 0;
this._width = 0;
this._height = 0;
this._left = 0;
this._right = 0;
this._top = 0;
this._bottom = 0;
this._pathArray = [];
this._path = "";
this._pathType = "";
return this;
},
/**
* Draws the path.
*
* @method _closePath
* @private
*/
_closePath: function()
{
var pathArray,
segmentArray,
pathType,
len,
val,
i,
path = "",
node = this.node,
left = parseFloat(this._left),
top = parseFloat(this._top),
fill = this.get("fill");
if(this._pathArray)
{
pathArray = this._pathArray.concat();
while(pathArray && pathArray.length > 0)
{
segmentArray = pathArray.shift();
len = segmentArray.length;
pathType = segmentArray[0];
if(pathType === "A")
{
path += pathType + segmentArray[1] + "," + segmentArray[2];
}
else if(pathType === "z" || pathType === "Z")
{
path += " z ";
}
else if(pathType === "C" || pathType === "c")
{
path += pathType + (segmentArray[1] - left)+ "," + (segmentArray[2] - top);
}
else
{
path += " " + pathType + parseFloat(segmentArray[1] - left);
}
switch(pathType)
{
case "L" :
case "l" :
case "M" :
case "m" :
case "Q" :
case "q" :
for(i = 2; i < len; ++i)
{
val = (i % 2 === 0) ? top : left;
val = segmentArray[i] - val;
path += ", " + parseFloat(val);
}
break;
case "A" :
val = " " + parseFloat(segmentArray[3]) + " " + parseFloat(segmentArray[4]);
val += "," + parseFloat(segmentArray[5]) + " " + parseFloat(segmentArray[6] - left);
val += "," + parseFloat(segmentArray[7] - top);
path += " " + val;
break;
case "C" :
case "c" :
for(i = 3; i < len - 1; i = i + 2)
{
val = parseFloat(segmentArray[i] - left);
val = val + ", ";
val = val + parseFloat(segmentArray[i + 1] - top);
path += " " + val;
}
break;
}
}
if(fill && fill.color)
{
path += 'z';
}
Y.Lang.trim(path);
if(path)
{
node.setAttribute("d", path);
}
this._path = path;
this._fillChangeHandler();
this._strokeChangeHandler();
this._updateTransform();
}
},
/**
* Ends a fill and stroke
*
* @method closePath
* @chainable
*/
closePath: function()
{
this._pathArray.push(["z"]);
return this;
},
/**
* Returns the current array of drawing commands.
*
* @method _getCurrentArray
* @return Array
* @private
*/
_getCurrentArray: function()
{
var currentArray = this._pathArray[Math.max(0, this._pathArray.length - 1)];
if(!currentArray)
{
currentArray = [];
this._pathArray.push(currentArray);
}
return currentArray;
},
/**
* 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,
left = this._currentX,
right = left,
top = this._currentY,
bottom = top,
len = Math.round(Math.sqrt((w * w) + (h * h))),
t = 1/len,
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, bottom);
this._trackSize(left, top);
},
/**
* 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.SVGDrawing = SVGDrawing;
/**
* <a href="http://www.w3.org/TR/SVG/">SVG</a> implementation of the <a href="Shape.html">`Shape`</a> class.
* `SVGShape` is not intended to be used directly. Instead, use the <a href="Shape.html">`Shape`</a> class.
* If the browser has <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities, the <a href="Shape.html">`Shape`</a>
* class will point to the `SVGShape` class.
*
* @module graphics
* @class SVGShape
* @constructor
* @param {Object} cfg (optional) Attribute configs
*/
SVGShape = function()
{
this._transforms = [];
this.matrix = new Y.Matrix();
this._normalizedMatrix = new Y.Matrix();
SVGShape.superclass.constructor.apply(this, arguments);
};
SVGShape.NAME = "shape";
Y.extend(SVGShape, Y.GraphicBase, Y.mix({
/**
* Storage for x attribute.
*
* @property _x
* @protected
*/
_x: 0,
/**
* Storage for y attribute.
*
* @property _y
* @protected
*/
_y: 0,
/**
* Init method, invoked during construction.
* Calls `initializer` method.
*
* @method init
* @protected
*/
init: function()
{
this.initializer.apply(this, arguments);
},
/**
* Initializes the shape
*
* @private
* @method initializer
*/
initializer: function(cfg)
{
var host = this,
graphic = cfg.graphic,
data = this.get("data");
host.createNode();
if(graphic)
{
host._setGraphic(graphic);
}
if(data)
{
host._parsePathData(data);
}
host._updateHandler();
},
/**
* Set the Graphic instance for the shape.
*
* @method _setGraphic
* @param {Graphic | Node | HTMLElement | String} render This param is used to determine the graphic instance. If it is a
* `Graphic` instance, it will be assigned to the `graphic` attribute. Otherwise, a new Graphic instance will be created
* and rendered into the dom element that the render represents.
* @private
*/
_setGraphic: function(render)
{
var graphic;
if(render instanceof Y.SVGGraphic)
{
this._graphic = render;
}
else
{
graphic = new Y.SVGGraphic({
render: render
});
graphic._appendShape(this);
this._graphic = graphic;
}
},
/**
* Add a class name to each node.
*
* @method addClass
* @param {String} className the class name to add to the node's class attribute
*/
addClass: function(className)
{
var node = this.node;
node.className.baseVal = Y_LANG.trim([node.className.baseVal, className].join(' '));
},
/**
* Removes a class name from each node.
*
* @method removeClass
* @param {String} className the class name to remove from the node's class attribute
*/
removeClass: function(className)
{
var node = this.node,
classString = node.className.baseVal;
classString = classString.replace(new RegExp(className + ' '), className).replace(new RegExp(className), '');
node.className.baseVal = classString;
},
/**
* Gets the current position of the node in page coordinates.
*
* @method getXY
* @return Array The XY position of the shape.
*/
getXY: function()
{
var graphic = this._graphic,
parentXY = graphic.getXY(),
x = this._x,
y = this._y;
return [parentXY[0] + x, parentXY[1] + y];
},
/**
* Set the position of the shape in page coordinates, regardless of how the node is positioned.
*
* @method setXY
* @param {Array} Contains x & y values for new position (coordinates are page-based)
*/
setXY: function(xy)
{
var graphic = this._graphic,
parentXY = graphic.getXY();
this._x = xy[0] - parentXY[0];
this._y = xy[1] - parentXY[1];
this.set("transform", this.get("transform"));
},
/**
* Determines whether the node is an ancestor of another HTML element in the DOM hierarchy.
*
* @method contains
* @param {SVGShape | HTMLElement} needle The possible node or descendent
* @return Boolean Whether or not this shape is the needle or its ancestor.
*/
contains: function(needle)
{
var node = needle instanceof Y.Node ? needle._node : needle;
return node === this.node;
},
/**
* Compares nodes to determine if they match.
* Node instances can be compared to each other and/or HTMLElements.
* @method compareTo
* @param {HTMLElement | Node} refNode The reference node to compare to the node.
* @return {Boolean} True if the nodes match, false if they do not.
*/
compareTo: function(refNode) {
var node = this.node;
return node === refNode;
},
/**
* Test if the supplied node matches the supplied selector.
*
* @method test
* @param {String} selector The CSS selector to test against.
* @return Boolean Wheter or not the shape matches the selector.
*/
test: function(selector)
{
return Y.Selector.test(this.node, selector);
},
/**
* Value function for fill attribute
*
* @private
* @method _getDefaultFill
* @return Object
*/
_getDefaultFill: function() {
return {
type: "solid",
opacity: 1,
cx: 0.5,
cy: 0.5,
fx: 0.5,
fy: 0.5,
r: 0.5
};
},
/**
* Value function for stroke attribute
*
* @private
* @method _getDefaultStroke
* @return Object
*/
_getDefaultStroke: function()
{
return {
weight: 1,
dashstyle: "none",
color: "#000",
opacity: 1.0
};
},
/**
* Creates the dom node for the shape.
*
* @method createNode
* @return HTMLElement
* @private
*/
createNode: function()
{
var host = this,
node = DOCUMENT.createElementNS("http://www.w3.org/2000/svg", "svg:" + this._type),
id = host.get("id"),
name = host.name,
concat = host._camelCaseConcat,
pointerEvents = host.get("pointerEvents");
host.node = node;
host.addClass(
_getClassName(SHAPE) +
" " +
_getClassName(concat(IMPLEMENTATION, SHAPE)) +
" " +
_getClassName(name) +
" " +
_getClassName(concat(IMPLEMENTATION, name))
);
if(id)
{
node.setAttribute("id", id);
}
if(pointerEvents)
{
node.setAttribute("pointer-events", pointerEvents);
}
if(!host.get("visible"))
{
Y.DOM.setStyle(node, "visibility", "hidden");
}
Y.DOM.setAttribute(this.node, "shape-rendering", this.get("shapeRendering"));
},
/**
* 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.on(type, fn, "#" + this.get("id"));
}
return Y.on.apply(this, arguments);
},
/**
* Adds a stroke to the shape node.
*
* @method _strokeChangeHandler
* @private
*/
_strokeChangeHandler: function()
{
var node = this.node,
stroke = this.get("stroke"),
strokeOpacity,
dashstyle,
dash,
linejoin;
if(stroke && stroke.weight && stroke.weight > 0)
{
linejoin = stroke.linejoin || "round";
strokeOpacity = parseFloat(stroke.opacity);
dashstyle = stroke.dashstyle || "none";
dash = Y_LANG.isArray(dashstyle) ? dashstyle.toString() : dashstyle;
stroke.color = stroke.color || "#000000";
stroke.weight = stroke.weight || 1;
stroke.opacity = Y_LANG.isNumber(strokeOpacity) ? strokeOpacity : 1;
stroke.linecap = stroke.linecap || "butt";
node.setAttribute("stroke-dasharray", dash);
node.setAttribute("stroke", stroke.color);
node.setAttribute("stroke-linecap", stroke.linecap);
node.setAttribute("stroke-width", stroke.weight);
node.setAttribute("stroke-opacity", stroke.opacity);
if(linejoin === "round" || linejoin === "bevel")
{
node.setAttribute("stroke-linejoin", linejoin);
}
else
{
linejoin = parseInt(linejoin, 10);
if(Y_LANG.isNumber(linejoin))
{
node.setAttribute("stroke-miterlimit", Math.max(linejoin, 1));
node.setAttribute("stroke-linejoin", "miter");
}
}
}
else
{
node.setAttribute("stroke", "none");
}
},
/**
* Adds a fill to the shape node.
*
* @method _fillChangeHandler
* @private
*/
_fillChangeHandler: function()
{
var node = this.node,
fill = this.get("fill"),
fillOpacity,
type;
if(fill)
{
type = fill.type;
if(type === "linear" || type === "radial")
{
this._setGradientFill(fill);
node.setAttribute("fill", "url(#grad" + this.get("id") + ")");
}
else if(!fill.color)
{
node.setAttribute("fill", "none");
}
else
{
fillOpacity = parseFloat(fill.opacity);
fillOpacity = Y_LANG.isNumber(fillOpacity) ? fillOpacity : 1;
node.setAttribute("fill", fill.color);
node.setAttribute("fill-opacity", fillOpacity);
}
}
else
{
node.setAttribute("fill", "none");
}
},
/**
* Creates a gradient fill
*
* @method _setGradientFill
* @param {String} type gradient type
* @private
*/
_setGradientFill: function(fill) {
var offset,
opacity,
color,
stopNode,
newStop,
isNumber = Y_LANG.isNumber,
graphic = this._graphic,
type = fill.type,
gradientNode = graphic.getGradientNode("grad" + this.get("id"), type),
stops = fill.stops,
w = this.get("width"),
h = this.get("height"),
rotation = fill.rotation || 0,
radCon = Math.PI/180,
tanRadians = parseFloat(parseFloat(Math.tan(rotation * radCon)).toFixed(8)),
i,
len,
def,
stop,
x1 = "0%",
x2 = "100%",
y1 = "0%",
y2 = "0%",
cx = fill.cx,
cy = fill.cy,
fx = fill.fx,
fy = fill.fy,
r = fill.r,
stopNodes = [];
if(type === "linear")
{
cx = w/2;
cy = h/2;
if(Math.abs(tanRadians) * w/2 >= h/2)
{
if(rotation < 180)
{
y1 = 0;
y2 = h;
}
else
{
y1 = h;
y2 = 0;
}
x1 = cx - ((cy - y1)/tanRadians);
x2 = cx - ((cy - y2)/tanRadians);
}
else
{
if(rotation > 90 && rotation < 270)
{
x1 = w;
x2 = 0;
}
else
{
x1 = 0;
x2 = w;
}
y1 = ((tanRadians * (cx - x1)) - cy) * -1;
y2 = ((tanRadians * (cx - x2)) - cy) * -1;
}
x1 = Math.round(100 * x1/w);
x2 = Math.round(100 * x2/w);
y1 = Math.round(100 * y1/h);
y2 = Math.round(100 * y2/h);
//Set default value if not valid
x1 = isNumber(x1) ? x1 : 0;
x2 = isNumber(x2) ? x2 : 100;
y1 = isNumber(y1) ? y1 : 0;
y2 = isNumber(y2) ? y2 : 0;
gradientNode.setAttribute("spreadMethod", "pad");
gradientNode.setAttribute("width", w);
gradientNode.setAttribute("height", h);
gradientNode.setAttribute("x1", x1 + "%");
gradientNode.setAttribute("x2", x2 + "%");
gradientNode.setAttribute("y1", y1 + "%");
gradientNode.setAttribute("y2", y2 + "%");
}
else
{
gradientNode.setAttribute("cx", (cx * 100) + "%");
gradientNode.setAttribute("cy", (cy * 100) + "%");
gradientNode.setAttribute("fx", (fx * 100) + "%");
gradientNode.setAttribute("fy", (fy * 100) + "%");
gradientNode.setAttribute("r", (r * 100) + "%");
}
len = stops.length;
def = 0;
for(i = 0; i < len; ++i)
{
if(this._stops && this._stops.length > 0)
{
stopNode = this._stops.shift();
newStop = false;
}
else
{
stopNode = graphic._createGraphicNode("stop");
newStop = true;
}
stop = stops[i];
opacity = stop.opacity;
color = stop.color;
offset = stop.offset || i/(len - 1);
offset = Math.round(offset * 100) + "%";
opacity = isNumber(opacity) ? opacity : 1;
opacity = Math.max(0, Math.min(1, opacity));
def = (i + 1) / len;
stopNode.setAttribute("offset", offset);
stopNode.setAttribute("stop-color", color);
stopNode.setAttribute("stop-opacity", opacity);
if(newStop)
{
gradientNode.appendChild(stopNode);
}
stopNodes.push(stopNode);
}
while(this._stops && this._stops.length > 0)
{
gradientNode.removeChild(this._stops.shift());
}
this._stops = stopNodes;
},
_stops: null,
/**
* Sets the value of an attribute.
*
* @method set
* @param {String|Object} name The name of the attribute. Alternatively, an object of key value pairs can
* be passed in to set multiple attributes at once.
* @param {Any} value The value to set the attribute to. This value is ignored if an object is received as
* the name param.
*/
set: function()
{
var host = this;
AttributeLite.prototype.set.apply(host, arguments);
if(host.initialized)
{
host._updateHandler();
}
},
/**
* Specifies a 2d translation.
*
* @method translate
* @param {Number} x The value to transate on the x-axis.
* @param {Number} y The value to translate on the y-axis.
*/
translate: function()
{
this._addTransform("translate", arguments);
},
/**
* Translates the shape along the x-axis. When translating x and y coordinates,
* use the `translate` method.
*
* @method translateX
* @param {Number} x The value to translate.
*/
translateX: function()
{
this._addTransform("translateX", arguments);
},
/**
* Translates the shape along the y-axis. When translating x and y coordinates,
* use the `translate` method.
*
* @method translateY
* @param {Number} y The value to translate.
*/
translateY: function()
{
this._addTransform("translateY", arguments);
},
/**
* Skews the shape around the x-axis and y-axis.
*
* @method skew
* @param {Number} x The value to skew on the x-axis.
* @param {Number} y The value to skew on the y-axis.
*/
skew: function()
{
this._addTransform("skew", arguments);
},
/**
* Skews the shape around the x-axis.
*
* @method skewX
* @param {Number} x x-coordinate
*/
skewX: function()
{
this._addTransform("skewX", arguments);
},
/**
* Skews the shape around the y-axis.
*
* @method skewY
* @param {Number} y y-coordinate
*/
skewY: function()
{
this._addTransform("skewY", arguments);
},
/**
* Rotates the shape clockwise around it transformOrigin.
*
* @method rotate
* @param {Number} deg The degree of the rotation.
*/
rotate: function()
{
this._addTransform("rotate", arguments);
},
/**
* Specifies a 2d scaling operation.
*
* @method scale
* @param {Number} val
*/
scale: function()
{
this._addTransform("scale", arguments);
},
/**
* Adds a transform to the shape.
*
* @method _addTransform
* @param {String} type The transform being applied.
* @param {Array} args The arguments for the transform.
* @private
*/
_addTransform: function(type, args)
{
args = Y.Array(args);
this._transform = Y_LANG.trim(this._transform + " " + type + "(" + args.join(", ") + ")");
args.unshift(type);
this._transforms.push(args);
if(this.initialized)
{
this._updateTransform();
}
},
/**
* Applies all transforms.
*
* @method _updateTransform
* @private
*/
_updateTransform: function()
{
var isPath = this._type === "path",
node = this.node,
key,
transform,
transformOrigin,
x,
y,
tx,
ty,
matrix = this.matrix,
normalizedMatrix = this._normalizedMatrix,
i,
len = this._transforms.length;
if(isPath || (this._transforms && this._transforms.length > 0))
{
x = this._x;
y = this._y;
transformOrigin = this.get("transformOrigin");
tx = x + (transformOrigin[0] * this.get("width"));
ty = y + (transformOrigin[1] * this.get("height"));
//need to use translate for x/y coords
if(isPath)
{
//adjust origin for custom shapes
if(!(this instanceof Y.SVGPath))
{
tx = this._left + (transformOrigin[0] * this.get("width"));
ty = this._top + (transformOrigin[1] * this.get("height"));
}
normalizedMatrix.init({dx: x + this._left, dy: y + this._top});
}
normalizedMatrix.translate(tx, ty);
for(i = 0; i < len; ++i)
{
key = this._transforms[i].shift();
if(key)
{
normalizedMatrix[key].apply(normalizedMatrix, this._transforms[i]);
matrix[key].apply(matrix, this._transforms[i]);
}
if(isPath)
{
this._transforms[i].unshift(key);
}
}
normalizedMatrix.translate(-tx, -ty);
transform = "matrix(" + normalizedMatrix.a + "," +
normalizedMatrix.b + "," +
normalizedMatrix.c + "," +
normalizedMatrix.d + "," +
normalizedMatrix.dx + "," +
normalizedMatrix.dy + ")";
}
this._graphic.addToRedrawQueue(this);
if(transform)
{
node.setAttribute("transform", transform);
}
if(!isPath)
{
this._transforms = [];
}
},
/**
* Draws the shape.
*
* @method _draw
* @private
*/
_draw: function()
{
var node = this.node;
node.setAttribute("width", this.get("width"));
node.setAttribute("height", this.get("height"));
node.setAttribute("x", this._x);
node.setAttribute("y", this._y);
node.style.left = this._x + "px";
node.style.top = this._y + "px";
this._fillChangeHandler();
this._strokeChangeHandler();
this._updateTransform();
},
/**
* Updates `Shape` based on attribute changes.
*
* @method _updateHandler
* @private
*/
_updateHandler: function()
{
this._draw();
},
/**
* Storage for the transform attribute.
*
* @property _transform
* @type String
* @private
*/
_transform: "",
/**
* Returns the bounds for a shape.
*
* Calculates the a new bounding box from the original corner coordinates (base on size and position) and the transform matrix.
* The calculated bounding box is used by the graphic instance to calculate its viewBox.
*
* @method getBounds
* @return Object
*/
getBounds: function()
{
var type = this._type,
stroke = this.get("stroke"),
w = this.get("width"),
h = this.get("height"),
x = type === "path" ? 0 : this._x,
y = type === "path" ? 0 : this._y,
wt = 0;
if(stroke && stroke.weight)
{
wt = stroke.weight;
w = (x + w + wt) - (x - wt);
h = (y + h + wt) - (y - wt);
x -= wt;
y -= wt;
}
return this._normalizedMatrix.getContentRect(w, h, x, y);
},
/**
* Places the shape above all other shapes.
*
* @method toFront
*/
toFront: function()
{
var graphic = this.get("graphic");
if(graphic)
{
graphic._toFront(this);
}
},
/**
* Places the shape underneath all other shapes.
*
* @method toFront
*/
toBack: function()
{
var graphic = this.get("graphic");
if(graphic)
{
graphic._toBack(this);
}
},
/**
* Parses path data string and call mapped methods.
*
* @method _parsePathData
* @param {String} val The path data
* @private
*/
_parsePathData: function(val)
{
var method,
methodSymbol,
args,
commandArray = Y.Lang.trim(val.match(SPLITPATHPATTERN)),
i,
len,
str,
symbolToMethod = this._pathSymbolToMethod;
if(commandArray)
{
this.clear();
len = commandArray.length || 0;
for(i = 0; i < len; i = i + 1)
{
str = commandArray[i];
methodSymbol = str.substr(0, 1);
args = str.substr(1).match(SPLITARGSPATTERN);
method = symbolToMethod[methodSymbol];
if(method)
{
if(args)
{
this[method].apply(this, args);
}
else
{
this[method].apply(this);
}
}
}
this.end();
}
},
/**
* Destroys the shape instance.
*
* @method destroy
*/
destroy: function()
{
var graphic = this.get("graphic");
if(graphic)
{
graphic.removeShape(this);
}
else
{
this._destroy();
}
},
/**
* Implementation for shape destruction
*
* @method destroy
* @protected
*/
_destroy: function()
{
if(this.node)
{
Y.Event.purgeElement(this.node, true);
if(this.node.parentNode)
{
this.node.parentNode.removeChild(this.node);
}
this.node = null;
}
}
}, Y.SVGDrawing.prototype));
SVGShape.ATTRS = {
/**
* An array of x, y values which indicates the transformOrigin in which to rotate the shape. Valid values range between 0 and 1 representing a
* fraction of the shape's corresponding bounding box dimension. The default value is [0.5, 0.5].
*
* @config transformOrigin
* @type Array
*/
transformOrigin: {
valueFn: function()
{
return [0.5, 0.5];
}
},
/**
* <p>A string containing, in order, transform operations applied to the shape instance. The `transform` string can contain the following values:
*
* <dl>
* <dt>rotate</dt><dd>Rotates the shape clockwise around it transformOrigin.</dd>
* <dt>translate</dt><dd>Specifies a 2d translation.</dd>
* <dt>skew</dt><dd>Skews the shape around the x-axis and y-axis.</dd>
* <dt>scale</dt><dd>Specifies a 2d scaling operation.</dd>
* <dt>translateX</dt><dd>Translates the shape along the x-axis.</dd>
* <dt>translateY</dt><dd>Translates the shape along the y-axis.</dd>
* <dt>skewX</dt><dd>Skews the shape around the x-axis.</dd>
* <dt>skewY</dt><dd>Skews the shape around the y-axis.</dd>
* <dt>matrix</dt><dd>Specifies a 2D transformation matrix comprised of the specified six values.</dd>
* </dl>
* </p>
* <p>Applying transforms through the transform attribute will reset the transform matrix and apply a new transform. The shape class also contains
* corresponding methods for each transform that will apply the transform to the current matrix. The below code illustrates how you might use the
* `transform` attribute to instantiate a recangle with a rotation of 45 degrees.</p>
var myRect = new Y.Rect({
type:"rect",
width: 50,
height: 40,
transform: "rotate(45)"
};
* <p>The code below would apply `translate` and `rotate` to an existing shape.</p>
myRect.set("transform", "translate(40, 50) rotate(45)");
* @config transform
* @type String
*/
transform: {
setter: function(val)
{
this.matrix.init();
this._normalizedMatrix.init();
this._transforms = this.matrix.getTransformArray(val);
this._transform = val;
return val;
},
getter: function()
{
return this._transform;
}
},
/**
* Unique id for class instance.
*
* @config id
* @type String
*/
id: {
valueFn: function()
{
return Y.guid();
},
setter: function(val)
{
var node = this.node;
if(node)
{
node.setAttribute("id", val);
}
return val;
}
},
/**
* Indicates the x position of shape.
*
* @config x
* @type Number
*/
x: {
getter: function()
{
return this._x;
},
setter: function(val)
{
var transform = this.get("transform");
this._x = val;
if(transform)
{
this.set("transform", transform);
}
}
},
/**
* Indicates the y position of shape.
*
* @config y
* @type Number
*/
y: {
getter: function()
{
return this._y;
},
setter: function(val)
{
var transform = this.get("transform");
this._y = val;
if(transform)
{
this.set("transform", transform);
}
}
},
/**
* Indicates the width of the shape
*
* @config width
* @type Number
*/
width: {
value: 0
},
/**
* Indicates the height of the shape
*
* @config height
* @type Number
*/
height: {
value: 0
},
/**
* Indicates whether the shape is visible.
*
* @config visible
* @type Boolean
*/
visible: {
value: true,
setter: function(val){
var visibility = val ? "visible" : "hidden";
if(this.node)
{
this.node.style.visibility = visibility;
}
return val;
}
},
/**
* Only implemented in SVG implementation.
* Applies the SVG shape-rendering attribute to the shape.
* <dl>
* <dt>auto</dt>
* <dd>Indicates that the user agent shall make appropriate tradeoffs to balance speed,
* crisp edges and geometric precision, but with geometric precision given more importance than speed and crisp edges.</dd>
* <dt>optimizeSpeed</dt>
* <dd>Indicates that the user agent shall emphasize rendering speed over geometric precision and crisp edges.
* This option will sometimes cause the user agent to turn off shape anti-aliasing.</dd>
* <dt>crispEdges</dt>
* <dd>Indicates that the user agent shall attempt to emphasize the contrast between clean edges of artwork over rendering
* speed and geometric precision. To achieve crisp edges, the user agent might turn off anti-aliasing for all lines and curves
* or possibly just for straight lines which are close to vertical or horizontal. Also, the user agent might adjust line
* positions and line widths to align edges with device pixels.</dd>
* <dt>geometricPrecision</dt>
* <dd>Indicates that the user agent shall emphasize geometric precision over speed and crisp edges.</dd>
* </dl>
*
* @config shapeRendering
* @type String
*/
shapeRendering: {
value: "auto",
setter: function(val) {
if(this.node)
{
Y.DOM.setAttribute(this.node, "shape-rendering", val);
}
return val;
}
},
/**
* Contains information about the fill of the shape.
* <dl>
* <dt>color</dt><dd>The color of the fill.</dd>
* <dt>opacity</dt><dd>Number between 0 and 1 that indicates the opacity of the fill. The default value is 1.</dd>
* <dt>type</dt><dd>Type of fill.
* <dl>
* <dt>solid</dt><dd>Solid single color fill. (default)</dd>
* <dt>linear</dt><dd>Linear gradient fill.</dd>
* <dt>radial</dt><dd>Radial gradient fill.</dd>
* </dl>
* </dd>
* </dl>
* <p>If a `linear` or `radial` is specified as the fill type. The following additional property is used:
* <dl>
* <dt>stops</dt><dd>An array of objects containing the following properties:
* <dl>
* <dt>color</dt><dd>The color of the stop.</dd>
* <dt>opacity</dt><dd>Number between 0 and 1 that indicates the opacity of the stop. The default value is 1.
* Note: No effect for IE 6 - 8</dd>
* <dt>offset</dt><dd>Number between 0 and 1 indicating where the color stop is positioned.</dd>
* </dl>
* </dd>
* <p>Linear gradients also have the following property:</p>
* <dt>rotation</dt><dd>Linear gradients flow left to right by default. The rotation property allows you to change the
* flow by rotation. (e.g. A rotation of 180 would make the gradient pain from right to left.)</dd>
* <p>Radial gradients have the following additional properties:</p>
* <dt>r</dt><dd>Radius of the gradient circle.</dd>
* <dt>fx</dt><dd>Focal point x-coordinate of the gradient.</dd>
* <dt>fy</dt><dd>Focal point y-coordinate of the gradient.</dd>
* <dt>cx</dt><dd>
* <p>The x-coordinate of the center of the gradient circle. Determines where the color stop begins. The default value 0.5.</p>
* <p><strong>Note: </strong>Currently, this property is not implemented for corresponding `CanvasShape` and
* `VMLShape` classes which are used on Android or IE 6 - 8.</p>
* </dd>
* <dt>cy</dt><dd>
* <p>The y-coordinate of the center of the gradient circle. Determines where the color stop begins. The default value 0.5.</p>
* <p><strong>Note: </strong>Currently, this property is not implemented for corresponding `CanvasShape` and `VMLShape`
* classes which are used on Android or IE 6 - 8.</p>
* </dd>
* </dl>
*
* @config fill
* @type Object
*/
fill: {
valueFn: "_getDefaultFill",
setter: function(val)
{
var fill,
tmpl = this.get("fill") || this._getDefaultFill();
fill = (val) ? Y.merge(tmpl, val) : null;
if(fill && fill.color)
{
if(fill.color === undefined || fill.color === "none")
{
fill.color = null;
}
}
return fill;
}
},
/**
* Contains information about the stroke of the shape.
* <dl>
* <dt>color</dt><dd>The color of the stroke.</dd>
* <dt>weight</dt><dd>Number that indicates the width of the stroke.</dd>
* <dt>opacity</dt><dd>Number between 0 and 1 that indicates the opacity of the stroke. The default value is 1.</dd>
* <dt>dashstyle</dt>Indicates whether to draw a dashed stroke. When set to "none", a solid stroke is drawn. When set
* to an array, the first index indicates the length of the dash. The second index indicates the length of gap.
* <dt>linecap</dt><dd>Specifies the linecap for the stroke. The following values can be specified:
* <dl>
* <dt>butt (default)</dt><dd>Specifies a butt linecap.</dd>
* <dt>square</dt><dd>Specifies a sqare linecap.</dd>
* <dt>round</dt><dd>Specifies a round linecap.</dd>
* </dl>
* </dd>
* <dt>linejoin</dt><dd>Specifies a linejoin for the stroke. The following values can be specified:
* <dl>
* <dt>round (default)</dt><dd>Specifies that the linejoin will be round.</dd>
* <dt>bevel</dt><dd>Specifies a bevel for the linejoin.</dd>
* <dt>miter limit</dt><dd>An integer specifying the miter limit of a miter linejoin. If you want to specify a linejoin
* of miter, you simply specify the limit as opposed to having separate miter and miter limit values.</dd>
* </dl>
* </dd>
* </dl>
*
* @config stroke
* @type Object
*/
stroke: {
valueFn: "_getDefaultStroke",
setter: function(val)
{
var tmpl = this.get("stroke") || this._getDefaultStroke(),
wt;
if(val && val.hasOwnProperty("weight"))
{
wt = parseInt(val.weight, 10);
if(!isNaN(wt))
{
val.weight = wt;
}
}
return (val) ? Y.merge(tmpl, val) : null;
}
},
// Only implemented in SVG
// Determines whether the instance will receive mouse events.
//
// @config pointerEvents
// @type string
//
pointerEvents: {
valueFn: function()
{
var val = "visiblePainted",
node = this.node;
if(node)
{
node.setAttribute("pointer-events", val);
}
return val;
},
setter: function(val)
{
var node = this.node;
if(node)
{
node.setAttribute("pointer-events", val);
}
return val;
}
},
/**
* Dom node for the shape.
*
* @config node
* @type HTMLElement
* @readOnly
*/
node: {
readOnly: true,
getter: function()
{
return this.node;
}
},
/**
* Represents an SVG Path string. This will be parsed and added to shape's API to represent the SVG data across all
* implementations. Note that when using VML or SVG implementations, part of this content will be added to the DOM using
* respective VML/SVG attributes. If your content comes from an untrusted source, you will need to ensure that no
* malicious code is included in that content.
*
* @config data
* @type String
*/
data: {
setter: function(val)
{
if(this.get("node"))
{
this._parsePathData(val);
}
return val;
}
},
/**
* Reference to the parent graphic instance
*
* @config graphic
* @type SVGGraphic
* @readOnly
*/
graphic: {
readOnly: true,
getter: function()
{
return this._graphic;
}
}
};
Y.SVGShape = SVGShape;
/**
* <a href="http://www.w3.org/TR/SVG/">SVG</a> implementation of the <a href="Path.html">`Path`</a> class.
* `SVGPath` is not intended to be used directly. Instead, use the <a href="Path.html">`Path`</a> class.
* If the browser has <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities, the <a href="Path.html">`Path`</a>
* class will point to the `SVGPath` class.
*
* @module graphics
* @class SVGPath
* @extends SVGShape
* @constructor
*/
SVGPath = function()
{
SVGPath.superclass.constructor.apply(this, arguments);
};
SVGPath.NAME = "path";
Y.extend(SVGPath, Y.SVGShape, {
/**
* 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,
/**
* Indicates the type of shape
*
* @property _type
* @readOnly
* @type String
* @private
*/
_type: "path",
/**
* Storage for path
*
* @property _path
* @type String
* @private
*/
_path: ""
});
SVGPath.ATTRS = Y.merge(Y.SVGShape.ATTRS, {
/**
* Indicates the path used for the node.
*
* @config path
* @type String
* @readOnly
*/
path: {
readOnly: true,
getter: function()
{
return this._path;
}
},
/**
* Indicates the width of the shape
*
* @config width
* @type Number
*/
width: {
getter: function()
{
var val = Math.max(this._right - this._left, 0);
return val;
}
},
/**
* Indicates the height of the shape
*
* @config height
* @type Number
*/
height: {
getter: function()
{
return Math.max(this._bottom - this._top, 0);
}
}
});
Y.SVGPath = SVGPath;
/**
* <a href="http://www.w3.org/TR/SVG/">SVG</a> implementation of the <a href="Rect.html">`Rect`</a> class.
* `SVGRect` is not intended to be used directly. Instead, use the <a href="Rect.html">`Rect`</a> class.
* If the browser has <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities, the <a href="Rect.html">`Rect`</a>
* class will point to the `SVGRect` class.
*
* @module graphics
* @class SVGRect
* @constructor
*/
SVGRect = function()
{
SVGRect.superclass.constructor.apply(this, arguments);
};
SVGRect.NAME = "rect";
Y.extend(SVGRect, Y.SVGShape, {
/**
* Indicates the type of shape
*
* @property _type
* @type String
* @private
*/
_type: "rect"
});
SVGRect.ATTRS = Y.SVGShape.ATTRS;
Y.SVGRect = SVGRect;
/**
* <a href="http://www.w3.org/TR/SVG/">SVG</a> implementation of the <a href="Ellipse.html">`Ellipse`</a> class.
* `SVGEllipse` is not intended to be used directly. Instead, use the <a href="Ellipse.html">`Ellipse`</a> class.
* If the browser has <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities, the <a href="Ellipse.html">`Ellipse`</a>
* class will point to the `SVGEllipse` class.
*
* @module graphics
* @class SVGEllipse
* @constructor
*/
SVGEllipse = function()
{
SVGEllipse.superclass.constructor.apply(this, arguments);
};
SVGEllipse.NAME = "ellipse";
Y.extend(SVGEllipse, SVGShape, {
/**
* Indicates the type of shape
*
* @property _type
* @type String
* @private
*/
_type: "ellipse",
/**
* Updates the shape.
*
* @method _draw
* @private
*/
_draw: function()
{
var node = this.node,
w = this.get("width"),
h = this.get("height"),
x = this.get("x"),
y = this.get("y"),
xRadius = w * 0.5,
yRadius = h * 0.5,
cx = x + xRadius,
cy = y + yRadius;
node.setAttribute("rx", xRadius);
node.setAttribute("ry", yRadius);
node.setAttribute("cx", cx);
node.setAttribute("cy", cy);
this._fillChangeHandler();
this._strokeChangeHandler();
this._updateTransform();
}
});
SVGEllipse.ATTRS = Y.merge(SVGShape.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.SVGEllipse = SVGEllipse;
/**
* <a href="http://www.w3.org/TR/SVG/">SVG</a> implementation of the <a href="Circle.html">`Circle`</a> class.
* `SVGCircle` is not intended to be used directly. Instead, use the <a href="Circle.html">`Circle`</a> class.
* If the browser has <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities, the <a href="Circle.html">`Circle`</a>
* class will point to the `SVGCircle` class.
*
* @module graphics
* @class SVGCircle
* @constructor
*/
SVGCircle = function()
{
SVGCircle.superclass.constructor.apply(this, arguments);
};
SVGCircle.NAME = "circle";
Y.extend(SVGCircle, Y.SVGShape, {
/**
* Indicates the type of shape
*
* @property _type
* @type String
* @private
*/
_type: "circle",
/**
* Updates the shape.
*
* @method _draw
* @private
*/
_draw: function()
{
var node = this.node,
x = this.get("x"),
y = this.get("y"),
radius = this.get("radius"),
cx = x + radius,
cy = y + radius;
node.setAttribute("r", radius);
node.setAttribute("cx", cx);
node.setAttribute("cy", cy);
this._fillChangeHandler();
this._strokeChangeHandler();
this._updateTransform();
}
});
SVGCircle.ATTRS = Y.merge(Y.SVGShape.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: {
value: 0
}
});
Y.SVGCircle = SVGCircle;
/**
* Draws pie slices
*
* @module graphics
* @class SVGPieSlice
* @constructor
*/
SVGPieSlice = function()
{
SVGPieSlice.superclass.constructor.apply(this, arguments);
};
SVGPieSlice.NAME = "svgPieSlice";
Y.extend(SVGPieSlice, Y.SVGShape, Y.mix({
/**
* 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.drawWedge(x, y, startAngle, arc, radius);
this.end();
}
}, Y.SVGDrawing.prototype));
SVGPieSlice.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.SVGShape.ATTRS);
Y.SVGPieSlice = SVGPieSlice;
/**
* <a href="http://www.w3.org/TR/SVG/">SVG</a> implementation of the <a href="Graphic.html">`Graphic`</a> class.
* `SVGGraphic` is not intended to be used directly. Instead, use the <a href="Graphic.html">`Graphic`</a> class.
* If the browser has <a href="http://www.w3.org/TR/SVG/">SVG</a> capabilities, the <a href="Graphic.html">`Graphic`</a>
* class will point to the `SVGGraphic` class.
*
* @module graphics
* @class SVGGraphic
* @constructor
*/
SVGGraphic = function() {
SVGGraphic.superclass.constructor.apply(this, arguments);
};
SVGGraphic.NAME = "svgGraphic";
SVGGraphic.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 coordSpace node.
*
* @config contentBounds
* @type Object
* @readOnly
*/
contentBounds: {
readOnly: true,
getter: function()
{
return this._contentBounds;
}
},
/**
* The html element that represents to coordinate system 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 to 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
},
visible: {
value: true,
setter: function(val)
{
this._toggleVisible(val);
return val;
}
},
//
// Indicates the pointer-events setting for the svg:svg element.
//
// @config pointerEvents
// @type String
//
pointerEvents: {
value: "none"
}
};
Y.extend(SVGGraphic, 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 = this._node,
xy;
if(node)
{
xy = Y.DOM.getXY(node);
}
return xy;
},
/**
* Initializes the class.
*
* @method initializer
* @private
*/
initializer: function() {
var render = this.get("render"),
visibility = this.get("visible") ? "visible" : "hidden";
this._shapes = {};
this._contentBounds = {
left: 0,
top: 0,
right: 0,
bottom: 0
};
this._gradients = {};
this._node = DOCUMENT.createElement('div');
this._node.style.position = "absolute";
this._node.style.left = this.get("x") + "px";
this._node.style.top = this.get("y") + "px";
this._node.style.visibility = visibility;
this._contentNode = this._createGraphics();
this._contentNode.style.visibility = visibility;
this._contentNode.setAttribute("id", this.get("id"));
this._node.appendChild(this._contentNode);
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 = render || DOCUMENT.body,
w,
h;
if(render instanceof Y.Node)
{
parentNode = render._node;
}
else if(Y.Lang.isString(render))
{
parentNode = Y.Selector.query(render, DOCUMENT.body, true);
}
w = this.get("width") || parseInt(Y.DOM.getComputedStyle(parentNode, "width"), 10);
h = this.get("height") || parseInt(Y.DOM.getComputedStyle(parentNode, "height"), 10);
parentNode.appendChild(this._node);
this.set("width", w);
this.set("height", h);
return this;
},
/**
* Removes all nodes.
*
* @method destroy
*/
destroy: function()
{
this.removeAllShapes();
if(this._contentNode)
{
this._removeChildren(this._contentNode);
if(this._contentNode.parentNode)
{
this._contentNode.parentNode.removeChild(this._contentNode);
}
this._contentNode = null;
}
if(this._node)
{
this._removeChildren(this._node);
if(this._node.parentNode)
{
this._node.parentNode.removeChild(this._node);
}
this._node = null;
}
},
/**
* 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._contentNode;
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 SVGShape))
{
if(Y_LANG.isString(shape))
{
shape = this._shapes[shape];
}
}
if(shape && shape instanceof SVGShape)
{
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 = {};
},
/**
* Removes all child nodes.
*
* @method _removeChildren
* @param {HTMLElement} node
* @private
*/
_removeChildren: function(node)
{
if(node.hasChildNodes())
{
var child;
while(node.firstChild)
{
child = node.firstChild;
this._removeChildren(child);
node.removeChild(child);
}
}
},
/**
* Clears the graphics object.
*
* @method clear
*/
clear: function() {
this.removeAllShapes();
},
/**
* 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._contentNode)
{
this._contentNode.style.visibility = visibility;
}
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.SVGCircle,
rect: Y.SVGRect,
path: Y.SVGPath,
ellipse: Y.SVGEllipse,
pieslice: Y.SVGPieSlice
},
/**
* 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,
left = box.left,
right = box.right,
top = box.top,
bottom = box.bottom,
width = right - left,
height = bottom - top,
computedWidth,
computedHeight,
computedLeft,
computedTop,
node;
if(autoSize)
{
if(autoSize === "sizeContentToGraphic")
{
node = this._node;
computedWidth = parseFloat(Y.DOM.getComputedStyle(node, "width"));
computedHeight = parseFloat(Y.DOM.getComputedStyle(node, "height"));
computedLeft = computedTop = 0;
this._contentNode.setAttribute("preserveAspectRatio", preserveAspectRatio);
}
else
{
computedWidth = width;
computedHeight = height;
computedLeft = left;
computedTop = top;
this._state.width = width;
this._state.height = height;
if(this._node)
{
this._node.style.width = width + "px";
this._node.style.height = height + "px";
}
}
}
else
{
computedWidth = width;
computedHeight = height;
computedLeft = left;
computedTop = top;
}
if(this._contentNode)
{
this._contentNode.style.left = computedLeft + "px";
this._contentNode.style.top = computedTop + "px";
this._contentNode.setAttribute("width", computedWidth);
this._contentNode.setAttribute("height", computedHeight);
this._contentNode.style.width = computedWidth + "px";
this._contentNode.style.height = computedHeight + "px";
this._contentNode.setAttribute("viewBox", "" + left + " " + top + " " + width + " " + height + "");
}
if(this._frag)
{
if(this._contentNode)
{
this._contentNode.appendChild(this._frag);
}
this._frag = null;
}
},
/**
* Adds a shape to the redraw queue and calculates the contentBounds. Used internally
* by `Shape` instances.
*
* @method addToRedrawQueue
* @param shape {SVGShape}
* @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;
box.width = box.right - box.left;
box.height = box.bottom - box.top;
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;
},
/**
* Creates a contentNode element
*
* @method _createGraphics
* @private
*/
_createGraphics: function() {
var contentNode = this._createGraphicNode("svg"),
pointerEvents = this.get("pointerEvents");
contentNode.style.position = "absolute";
contentNode.style.top = "0px";
contentNode.style.left = "0px";
contentNode.style.overflow = "auto";
contentNode.setAttribute("overflow", "auto");
contentNode.setAttribute("pointer-events", pointerEvents);
return contentNode;
},
/**
* Creates a graphic node
*
* @method _createGraphicNode
* @param {String} type node type to create
* @param {String} pe specified pointer-events value
* @return HTMLElement
* @private
*/
_createGraphicNode: function(type, pe)
{
var node = DOCUMENT.createElementNS("http://www.w3.org/2000/svg", "svg:" + type),
v = pe || "none";
if(type !== "defs" && type !== "stop" && type !== "linearGradient" && type !== "radialGradient")
{
node.setAttribute("pointer-events", v);
}
return node;
},
/**
* Returns a reference to a gradient definition based on an id and type.
*
* @method getGradientNode
* @param {String} key id that references the gradient definition
* @param {String} type description of the gradient type
* @return HTMLElement
* @protected
*/
getGradientNode: function(key, type)
{
var gradients = this._gradients,
gradient,
nodeType = type + "Gradient";
if(gradients.hasOwnProperty(key) && gradients[key].tagName.indexOf(type) > -1)
{
gradient = this._gradients[key];
}
else
{
gradient = this._createGraphicNode(nodeType);
if(!this._defs)
{
this._defs = this._createGraphicNode("defs");
this._contentNode.appendChild(this._defs);
}
this._defs.appendChild(gradient);
key = key || "gradient" + Math.round(100000 * Math.random());
gradient.setAttribute("id", key);
if(gradients.hasOwnProperty(key))
{
this._defs.removeChild(gradients[key]);
}
gradients[key] = gradient;
}
return gradient;
},
/**
* Inserts shape on the top of the tree.
*
* @method _toFront
* @param {SVGShape} Shape to add.
* @private
*/
_toFront: function(shape)
{
var contentNode = this._contentNode;
if(shape instanceof Y.SVGShape)
{
shape = shape.get("node");
}
if(contentNode && shape)
{
contentNode.appendChild(shape);
}
},
/**
* Inserts shape as the first child of the content node.
*
* @method _toBack
* @param {SVGShape} Shape to add.
* @private
*/
_toBack: function(shape)
{
var contentNode = this._contentNode,
targetNode;
if(shape instanceof Y.SVGShape)
{
shape = shape.get("node");
}
if(contentNode && shape)
{
targetNode = contentNode.firstChild;
if(targetNode)
{
contentNode.insertBefore(shape, targetNode);
}
else
{
contentNode.appendChild(shape);
}
}
}
});
Y.SVGGraphic = SVGGraphic;
}, '3.17.2', {"requires": ["graphics"]});