graphics-svg-debug.js revision 45be085c4155ae7ef409ffa4d79457928742f18f
YUI.add('graphics-svg', function(Y) {
var SHAPE = "svgShape",
Y_LANG = Y.Lang,
AttributeLite = Y.AttributeLite,
SVGGraphic,
SVGShape,
SVGCircle,
SVGRect,
SVGPath,
SVGEllipse,
SVGPieSlice,
DOCUMENT = Y.config.doc;
function SVGDrawing(){}
/**
* Set of drawing methods for SVG based classes.
*
* @module graphics
* @class SVGDrawing
* @constructor
*/
SVGDrawing.prototype = {
/**
* 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.
*/
curveTo: function(cp1x, cp1y, cp2x, cp2y, x, y) {
var pathArrayLen,
currentArray,
hiX,
loX,
hiY,
loY;
if(this._pathType !== "C")
{
this._pathType = "C";
currentArray = ["C"];
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([Math.round(cp1x), Math.round(cp1y), Math.round(cp2x) , Math.round(cp2y), x, y]);
hiX = Math.max(x, Math.max(cp1x, cp2x));
hiY = Math.max(y, Math.max(cp1y, cp2y));
loX = Math.min(x, Math.min(cp1x, cp2x));
loY = Math.min(y, Math.min(cp1y, cp2y));
this._trackSize(hiX, hiY);
this._trackSize(loX, loY);
},
/**
* 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.
*/
quadraticCurveTo: function(cpx, cpy, x, y) {
var pathArrayLen,
currentArray,
hiX,
loX,
hiY,
loY;
if(this._pathType !== "Q")
{
this._pathType = "Q";
currentArray = ["Q"];
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([Math.round(cpx), Math.round(cpy), Math.round(x), Math.round(y)]);
hiX = Math.max(x, cpx);
hiY = Math.max(y, cpy);
loX = Math.min(x, cpx);
loY = Math.min(y, cpy);
this._trackSize(hiX, hiY);
this._trackSize(loX, loY);
},
/**
* Draws a rectangle.
*
* @method drawRect
* @param {Number} x x-coordinate
* @param {Number} y y-coordinate
* @param {Number} w width
* @param {Number} h height
*/
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);
},
/**
* 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
*/
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);
},
/**
* Draws a wedge.
*
* @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.
*/
drawWedge: function(x, y, startAngle, arc, radius, yRadius)
{
var segs,
segAngle,
theta,
angle,
angleMid,
ax,
ay,
bx,
by,
cx,
cy,
i = 0,
diameter = radius * 2,
currentArray,
pathArrayLen;
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(Math.round(ax));
this._pathArray[pathArrayLen].push(Math.round(ay));
pathArrayLen++;
this._pathType = "Q";
this._pathArray[pathArrayLen] = ["Q"];
for(; 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(Math.round(cx));
this._pathArray[pathArrayLen].push(Math.round(cy));
this._pathArray[pathArrayLen].push(Math.round(bx));
this._pathArray[pathArrayLen].push(Math.round(by));
}
}
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.
*/
lineTo: function(point1, point2, etc) {
var args = arguments,
i,
len,
pathArrayLen,
currentArray;
this._pathArray = this._pathArray || [];
if (typeof point1 === 'string' || typeof point1 === 'number') {
args = [[point1, point2]];
}
len = args.length;
this._shapeType = "path";
if(this._pathType !== "L")
{
this._pathType = "L";
currentArray = ['L'];
this._pathArray.push(currentArray);
}
else
{
currentArray = this._getCurrentArray();
}
pathArrayLen = this._pathArray.length - 1;
for (i = 0; i < len; ++i) {
this._pathArray[pathArrayLen].push(args[i][0]);
this._pathArray[pathArrayLen].push(args[i][1]);
this._trackSize.apply(this, args[i]);
}
},
_getCurrentArray: function()
{
var currentArray = this._pathArray[Math.max(0, this._pathArray.length - 1)];
if(!currentArray)
{
currentArray = [];
this._pathArray.push(currentArray);
}
return currentArray;
},
/**
* 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.
*/
moveTo: function(x, y) {
var pathArrayLen,
currentArray;
this._pathArray = this._pathArray || [];
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] = this._pathArray[pathArrayLen].concat([x, y]);
this._trackSize(x, y);
},
/**
* Completes a drawing operation.
*
* @method end
*/
end: function()
{
this._closePath();
this._graphic.addToRedrawQueue(this);
},
/**
* Clears the path.
*
* @method clear
*/
clear: function()
{
this._left = 0;
this._right = 0;
this._top = 0;
this._bottom = 0;
this._pathArray = [];
this._path = "";
},
/**
* Draws the path.
*
* @method _closePath
* @private
*/
_closePath: function()
{
var pathArray,
segmentArray,
pathType,
len,
val,
val2,
i,
path = "",
node = this.node,
tx = this.get("translateX"),
ty = this.get("translateY"),
left = this._left,
top = 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];
path += " " + pathType + (segmentArray[1] - left);
switch(pathType)
{
case "L" :
case "M" :
case "Q" :
for(i = 2; i < len; ++i)
{
val = (i % 2 === 0) ? top : left;
val = segmentArray[i] - val;
path += ", " + val;
}
break;
case "C" :
for(i = 2; i < len; ++i)
{
val = (i % 2 === 0) ? top : left;
val2 = segmentArray[i];
val2 -= val;
path += " " + val2;
}
break;
}
}
if(fill && fill.color)
{
path += 'z';
}
if(path)
{
node.setAttribute("d", path);
}
//Use transform to handle positioning.
this._transformArgs = this._transformArgs || {};
this._transformArgs.translate = [left + tx, top + ty];
this._path = path;
this._fillChangeHandler();
this._strokeChangeHandler();
this._updateTransform();
}
},
/**
* 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;
/**
* Base class for creating shapes.
*
* @module graphics
* @class SVGShape
* @constructor
* @param {Object} cfg (optional) Attribute configs
*/
SVGShape = function(cfg)
{
SVGShape.superclass.constructor.apply(this, arguments);
};
SVGShape.NAME = "svgShape";
Y.extend(SVGShape, Y.BaseGraphic, 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;
host.createNode();
host._graphic = cfg.graphic;
host._updateHandler();
},
/**
* 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.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._graphic,
parentXY = graphic.getXY();
this.set("x", xy[0] - parentXY[0]);
this.set("y", xy[1] - parentXY[1]);
},
/**
* Determines whether the node is an ancestor of another HTML element in the DOM hierarchy.
*
* @method contains
* @param {SVGShape | HTMLElement} needle The possible node or descendent
* @return Boolean Whether or not this shape is the needle or its ancestor.
*/
contains: function(needle)
{
return needle === Y.one(this.node);
},
/**
* Compares nodes to determine if they match.
* Node instances can be compared to each other and/or HTMLElements.
* @method compareTo
* @param {HTMLElement | Node} refNode The reference node to compare to the node.
* @return {Boolean} True if the nodes match, false if they do not.
*/
compareTo: function(refNode) {
var node = this.node;
return node === refNode;
},
/**
* Test if the supplied node matches the supplied selector.
*
* @method test
* @param {String} selector The CSS selector to test against.
* @return Boolean Wheter or not the shape matches the selector.
*/
test: function(selector)
{
return Y.Selector.test(this.node, selector);
},
/**
* Value function for fill attribute
*
* @private
* @method _getDefaultFill
* @return Object
*/
_getDefaultFill: function() {
return {
type: "solid",
opacity: 1,
cx: 0.5,
cy: 0.5,
fx: 0.5,
fy: 0.5,
r: 0.5
};
},
/**
* Value function for stroke attribute
*
* @private
* @method _getDefaultStroke
* @return Object
*/
_getDefaultStroke: function()
{
return {
weight: 1,
dashstyle: "none",
color: "#000",
opacity: 1.0
};
},
/**
* Creates the dom node for the shape.
*
* @method createNode
* @return HTMLElement
* @private
*/
createNode: function()
{
var node = DOCUMENT.createElementNS("http://www.w3.org/2000/svg", "svg:" + this._type),
id = this.get("id"),
pointerEvents = this.get("pointerEvents");
this.node = node;
this.addClass("yui3-" + SHAPE + " yui3-" + this.name);
if(id)
{
node.setAttribute("id", id);
}
if(pointerEvents)
{
node.setAttribute("pointer-events", pointerEvents);
}
},
/**
* Parses event to determine if it is a dom interaction event.
*
* @method isMouseEvent
* @param {String} type Type of event
* @return Boolean
* @private
*/
isMouseEvent: function(type)
{
if(type.indexOf('mouse') > -1 || type.indexOf('click') > -1)
{
return true;
}
return false;
},
/**
* Overrides default `before` 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 before
* @param {String} type event type
* @param {Object} callback function
* @private
*/
before: function(type, fn)
{
if(this.isMouseEvent(type))
{
return Y.before(type, fn, "#" + this.get("id"));
}
return Y.on.apply(this, arguments);
},
/**
* 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(this.isMouseEvent(type))
{
return Y.on(type, fn, "#" + this.get("id"));
}
return Y.on.apply(this, arguments);
},
/**
* Overrides default `after` 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 after
* @param {String} type event type
* @param {Object} callback function
* @private
*/
after: function(type, fn)
{
if(this.isMouseEvent(type))
{
return Y.after(type, fn, "#" + this.get("id"));
}
return Y.on.apply(this, arguments);
},
/**
* Adds a stroke to the shape node.
*
* @method _strokeChangeHandler
* @private
*/
_strokeChangeHandler: function(e)
{
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(e)
{
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,
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,
radCon = Math.PI/180,
sinRadians = parseFloat(parseFloat(Math.sin(rotation * radCon)).toFixed(8)),
cosRadians = parseFloat(parseFloat(Math.cos(rotation * radCon)).toFixed(8)),
tanRadians = parseFloat(parseFloat(Math.tan(rotation * radCon)).toFixed(8)),
hyp = Math.sqrt((w * w) + (h * h)),
tx = (sinRadians * hyp),
ty = (cosRadians * hyp),
i,
len,
def,
stop,
x = this.get("x"),
y = this.get("y"),
x1 = "0%",
x2 = "100%",
y1 = "0%",
y2 = "0%",
cx = fill.cx,
cy = fill.cy,
fx = fill.fx,
fy = fill.fy,
r = fill.r;
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;
}
gradientNode.setAttribute("spreadMethod", "pad");
gradientNode.setAttribute("width", w);
gradientNode.setAttribute("height", h);
gradientNode.setAttribute("x1", Math.round(100 * x1/w) + "%");
gradientNode.setAttribute("y1", Math.round(100 * y1/h) + "%");
gradientNode.setAttribute("x2", Math.round(100 * x2/w) + "%");
gradientNode.setAttribute("y2", Math.round(100 * y2/h) + "%");
}
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)
{
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 = graphic._createGraphicNode("stop");
stopNode.setAttribute("offset", offset);
stopNode.setAttribute("stop-color", color);
stopNode.setAttribute("stop-opacity", opacity);
gradientNode.appendChild(stopNode);
}
},
/**
* 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();
}
},
/**
* Applies translate transformation.
*
* @method translate
* @param {Number} x The x-coordinate
* @param {Number} y The y-coordinate
*/
translate: function(x, y)
{
this._translateX = x;
this._translateY = y;
this._translate.apply(this, arguments);
},
/**
* Applies translate transformation.
*
* @method translate
* @param {Number} x The x-coordinate
* @param {Number} y The y-coordinate
* @protected
*/
_translate: function(x, y)
{
this._addTransform("translate", arguments);
},
/**
* Applies a skew to the x-coordinate
*
* @method skewX
* @param {Number} x x-coordinate
*/
skewX: function(x)
{
this._addTransform("skewX", arguments);
},
/**
* Applies a skew to the y-coordinate
*
* @method skewY
* @param {Number} y y-coordinate
*/
skewY: function(y)
{
this._addTransform("skewY", arguments);
},
/**
* Storage for `rotation` atribute.
*
* @property _rotation
* @type Number
* @private
*/
_rotation: 0,
/**
* Applies a rotation.
*
* @method rotate
* @param {Number} deg The degree of the rotation.
*/
rotate: function(deg)
{
this._rotation = deg;
this._addTransform("rotate", arguments);
},
/**
* Applies a scale transform
*
* @method scale
* @param {Number} val
*/
scale: function(val)
{
this._addTransform("scale", arguments);
},
/**
* Applies a matrix transformation
*
* @method matrix
* @param {Number} a
* @param {Number} b
* @param {Number} c
* @param {Number} d
* @param {Number} e
* @param {Number} f
*/
matrix: function(a, b, c, d, e, f)
{
this._addTransform("matrix", 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)
{
if(!this._transformArgs)
{
this._transformArgs = {};
}
this._transformArgs[type] = Array.prototype.slice.call(args, 0);
if(this.initialized)
{
this._updateTransform();
}
},
/**
* Applies all transforms.
*
* @method _updateTransform
* @private
*/
_updateTransform: function()
{
var node = this.node,
key,
args,
val,
transform = node.getAttribute("transform"),
test,
transformOrigin;
if(this._transformArgs)
{
if(this._transformArgs.hasOwnProperty("rotate"))
{
transformOrigin = this.get("transformOrigin");
args = this._transformArgs.rotate;
args[1] = this.get("x") + (this.get("width") * transformOrigin[0]);
args[2] = this.get("y") + (this.get("height") * transformOrigin[1]);
}
}
for(key in this._transformArgs)
{
if(key && this._transformArgs.hasOwnProperty(key))
{
val = key + "(" + this._transformArgs[key].toString() + ")";
if(transform && transform.length > 0)
{
test = new RegExp(key + '(.*)');
if(transform.indexOf(key) > -1)
{
transform = transform.replace(test, val);
}
else
{
transform += " " + val;
}
}
else
{
transform = val;
}
}
}
this._graphic.addToRedrawQueue(this);
if(transform)
{
node.setAttribute("transform", transform);
}
},
/**
* 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.get("x"));
node.setAttribute("y", this.get("y"));
node.style.left = this.get("x") + "px";
node.style.top = this.get("y") + "px";
this._fillChangeHandler();
this._strokeChangeHandler();
this._updateTransform();
},
/**
* Updates `Shape` based on attribute changes.
*
* @method _updateHandler
* @private
*/
_updateHandler: function(e)
{
this._draw();
},
/**
* Storage for translateX
*
* @property _translateX
* @type Number
* @private
*/
_translateX: 0,
/**
* Storage for translateY
*
* @property _translateY
* @type Number
* @private
*/
_translateY: 0,
/**
* Returns the bounds for a shape.
*
* @method getBounds
* @return Object
*/
getBounds: function()
{
var rotation = this.get("rotation"),
radCon = Math.PI/180,
sinRadians = parseFloat(parseFloat(Math.sin(rotation * radCon)).toFixed(8)),
cosRadians = parseFloat(parseFloat(Math.cos(rotation * radCon)).toFixed(8)),
w = this.get("width"),
h = this.get("height"),
stroke = this.get("stroke"),
x = this.get("x"),
y = this.get("y"),
right = x + w,
bottom = y + h,
tlx,
tly,
blx,
bly,
brx,
bry,
trx,
trY,
wt = 0,
tx = this.get("translateX"),
ty = this.get("translateY"),
bounds = {},
transformOrigin = this.get("transformOrigin"),
tox = transformOrigin[0],
toy = transformOrigin[1];
if(stroke && stroke.weight)
{
wt = stroke.weight;
}
if(rotation !== 0)
{
tox = x + (tox * w);
toy = y + (toy * h);
tlx = this._getRotatedCornerX(x, y, tox, toy, cosRadians, sinRadians);
tly = this._getRotatedCornerY(x, y, tox, toy, cosRadians, sinRadians);
blx = this._getRotatedCornerX(x, bottom, tox, toy, cosRadians, sinRadians);
bly = this._getRotatedCornerY(x, bottom, tox, toy, cosRadians, sinRadians);
brx = this._getRotatedCornerX(right, bottom, tox, toy, cosRadians, sinRadians);
bry = this._getRotatedCornerY(right, bottom, tox, toy, cosRadians, sinRadians);
trx = this._getRotatedCornerX(right, y, tox, toy, cosRadians, sinRadians);
trY = this._getRotatedCornerY(right, y, tox, toy, cosRadians, sinRadians);
bounds.left = Math.min(tlx, Math.min(blx, Math.min(brx, trx)));
bounds.right = Math.max(tlx, Math.max(blx, Math.max(brx, trx)));
bounds.top = Math.min(tly, Math.min(bly, Math.min(bry, trY)));
bounds.bottom = Math.max(tly, Math.max(bly, Math.max(bry, trY)));
}
else
{
bounds.left = x - wt + tx;
bounds.top = y - wt + ty;
bounds.right = x + w + wt + tx;
bounds.bottom = y + h + wt + ty;
}
return bounds;
},
/**
* Returns the x coordinate for a bounding box's corner based on the corner's original x/y coordinates, rotation and transform origin of the rotation.
*
* @method _getRotatedCornerX
* @param {Number} x original x-coordinate of corner
* @param {Number} y original y-coordinate of corner
* @param {Number} tox transform origin x-coordinate of rotation
* @param {Number} toy transform origin y-coordinate of rotation
* @param {Number} cosRadians cosine (in radians) of rotation
* @param {Number} sinRadians sin (in radians) or rotation
* @return Number
* @private
*/
_getRotatedCornerX: function(x, y, tox, toy, cosRadians, sinRadians)
{
return (tox + (x - tox) * cosRadians + (y - toy) * sinRadians);
},
/**
* Returns the y coordinate for a bounding box's corner based on the corner's original x/y coordinates, rotation and transform origin of the rotation.
*
* @method _getRotatedCornerY
* @param {Number} x original x-coordinate of corner
* @param {Number} y original y-coordinate of corner
* @param {Number} tox transform origin x-coordinate of rotation
* @param {Number} toy transform origin y-coordinate of rotation
* @param {Number} cosRadians cosine (in radians) of rotation
* @param {Number} sinRadians sin (in radians) or rotation
* @return Number
* @private
*/
_getRotatedCornerY: function(x, y, tox, toy, cosRadians, sinRadians)
{
return (toy - (x - tox) * sinRadians + (y - toy) * cosRadians);
},
/**
* Destroys the instance.
*
* @method destroy
*/
destroy: function()
{
if(this._graphic && this._graphic._contentNode)
{
this._graphic._contentNode.removeChild(this.node);
}
}
}, 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].
*
* @attribute transformOrigin
* @type Array
*/
transformOrigin: {
valueFn: function()
{
return [0.5, 0.5];
}
},
/**
* The rotation (in degrees) of the shape.
*
* @attribute rotation
* @type Number
*/
rotation: {
setter: function(val)
{
this.rotate(val);
},
getter: function()
{
return this._rotation;
}
},
/**
* Unique id for class instance.
*
* @attribute 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.
*
* @attribute x
* @type Number
*/
x: {
value: 0
},
/**
* Indicates the y position of shape.
*
* @attribute y
* @type Number
*/
y: {
value: 0
},
/**
* Indicates the width of the shape
*
* @attribute width
* @type Number
*/
width: {
value: 0
},
/**
* Indicates the height of the shape
*
* @attribute height
* @type Number
*/
height: {
value: 0
},
/**
* Indicates whether the shape is visible.
*
* @attribute visible
* @type Boolean
*/
visible: {
value: true,
setter: function(val){
var visibility = val ? "visible" : "hidden";
this.node.style.visibility = visibility;
return val;
}
},
/**
* Contains information about the fill of the shape.
* <dl>
* <dt>color</dt><dd>The color of the fill.</dd>
* <dt>opacity</dt><dd>Number between 0 and 1 that indicates the opacity of the fill. The default value is 1.</dd>
* <dt>type</dt><dd>Type of fill.
* <dl>
* <dt>solid</dt><dd>Solid single color fill. (default)</dd>
* <dt>linear</dt><dd>Linear gradient fill.</dd>
* <dt>radial</dt><dd>Radial gradient fill.</dd>
* </dl>
* </dd>
* </dl>
*
* <p>If a gradient (linear or radial) is specified as the fill type. The following properties are 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 <= 8</dd>
* <dt>offset</dt><dd>Number between 0 and 1 indicating where the color stop is positioned.</dd>
* </dl>
* </dd>
* <dt></dt><dd></dd>
* <dt></dt><dd></dd>
* <dt></dt><dd></dd>
* </dl>
* </p>
*
* @attribute 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.
* </dl>
*
* @attribute stroke
* @type Object
*/
stroke: {
valueFn: "_getDefaultStroke",
setter: function(val)
{
var tmpl = this.get("stroke") || this._getDefaultStroke();
return (val) ? Y.merge(tmpl, val) : null;
}
},
/**
* Indicates whether or not the instance will size itself based on its contents.
*
* @attribute autoSize
* @type Boolean
*/
autoSize: {
value: false
},
/**
* Determines whether the instance will receive mouse events.
*
* @attribute 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;
}
},
/**
* Performs a translate on the x-coordinate. When translating x and y coordinates,
* use the <code>translate</code> method.
*
* @attribute translateX
* @type Number
*/
translateX: {
getter: function()
{
return this._translateX;
},
setter: function(val)
{
this._translateX = val;
this._translate(val, this._translateY);
return val;
}
},
/**
* Performs a translate on the y-coordinate. When translating x and y coordinates,
* use the <code>translate</code> method.
*
* @attribute translateX
* @type Number
*/
translateY: {
getter: function()
{
return this._translateY;
},
setter: function(val)
{
this._translateY = val;
this._translate(this._translateX, val);
return val;
}
},
/**
* The node used for gradient fills.
*
* @attribute gradientNode
* @type HTMLElement
*/
gradientNode: {
setter: function(val)
{
if(Y_LANG.isString(val))
{
val = this._graphic.getGradientNode("linear", val);
}
return val;
}
},
/**
* Indicates whether to automatically refresh.
*
* @attribute autoDraw
* @type Boolean
* @readOnly
*/
autoDraw: {
getter: function()
{
return this._graphic.autoDraw;
}
},
/**
* Dom node for the shape.
*
* @attribute node
* @type HTMLElement
* @readOnly
*/
node: {
readOnly: true,
getter: function()
{
return this.node;
}
},
/**
* Reference to the parent graphic instance
*
* @attribute graphic
* @type SVGGraphic
* @readOnly
*/
graphic: {
readOnly: true,
getter: function()
{
return this._graphic;
}
}
};
Y.SVGShape = SVGShape;
/**
* The SVGPath class creates a shape through the use of drawing methods.
*
* @module graphics
* @class SVGPath
* @extends SVGShape
* @constructor
*/
SVGPath = function(cfg)
{
SVGPath.superclass.constructor.apply(this, arguments);
};
SVGPath.NAME = "svgPath";
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",
/**
* Applies translate transformation.
*
* @method translate
* @param {Number} x The x-coordinate
* @param {Number} y The y-coordinate
*/
translate: function(x, y)
{
x = parseInt(x, 10);
y = parseInt(y, 10);
this._translateX = x;
this._translateY = y;
this._translate(this._left + x, this._top + y);
},
/**
* Draws the shape.
*
* @method _draw
* @private
*/
_draw: function()
{
this._fillChangeHandler();
this._strokeChangeHandler();
},
/**
* Returns the bounds for a shape.
*
* @method getBounds
* @return Object
*/
getBounds: function()
{
var wt = 0,
bounds = {},
stroke = this.get("stroke"),
tx = this.get("translateX"),
ty = this.get("translateY");
if(stroke && stroke.weight)
{
wt = stroke.weight;
}
bounds.left = this._left - wt + tx;
bounds.top = this._top - wt + ty;
bounds.right = (this._right - this._left) + wt + tx;
bounds.bottom = (this._bottom - this._top) + wt + ty;
return bounds;
},
/**
* @private
*/
_path: ""
});
SVGPath.ATTRS = Y.merge(Y.SVGShape.ATTRS, {
/**
* Path string of the shape
*
* @attribute path
* @type String
*/
path: {
readOnly: true,
getter: function()
{
return this._path;
}
},
/**
* Indicates the height of the shape
*
* @attribute height
* @type Number
*/
width: {
getter: function()
{
var val = Math.max(this._right - this._left, 0);
return val;
}
},
/**
* Indicates the height of the shape
*
* @attribute height
* @type Number
*/
height: {
getter: function()
{
return Math.max(this._bottom - this._top, 0);
}
}
});
Y.SVGPath = SVGPath;
/**
* Draws rectangles
*
* @module graphics
* @class SVGRect
* @constructor
*/
SVGRect = function()
{
SVGRect.superclass.constructor.apply(this, arguments);
};
SVGRect.NAME = "svgRect";
Y.extend(SVGRect, Y.SVGShape, {
/**
* Indicates the type of shape
*
* @property _type
* @readOnly
* @type String
*/
_type: "rect"
});
SVGRect.ATTRS = Y.SVGShape.ATTRS;
Y.SVGRect = SVGRect;
/**
* Draws an ellipse
*
* @module graphics
* @class SVGEllipse
* @constructor
*/
SVGEllipse = function(cfg)
{
SVGEllipse.superclass.constructor.apply(this, arguments);
};
SVGEllipse.NAME = "svgEllipse";
Y.extend(SVGEllipse, SVGShape, {
/**
* Indicates the type of shape
*
* @property _type
* @readOnly
* @type String
*/
_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.
*
* @attribute xRadius
* @type Number
* @readOnly
*/
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.
*
* @attribute 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;
/**
* Draws an circle
*
* @module graphics
* @class SVGCircle
* @constructor
*/
SVGCircle = function(cfg)
{
SVGCircle.superclass.constructor.apply(this, arguments);
};
SVGCircle.NAME = "svgCircle";
Y.extend(SVGCircle, Y.SVGShape, {
/**
* Indicates the type of shape
*
* @property _type
* @readOnly
* @type String
*/
_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
*
* @attribute 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
*
* @attribute 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
*
* @attribute 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
* @readOnly
* @type String
*/
_type: "path",
/**
* Change event listener
*
* @private
* @method _updateHandler
*/
_draw: function(e)
{
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.
*
* @attribute startAngle
* @type Number
*/
startAngle: {
value: 0
},
/**
* Arc of the slice.
*
* @attribute arc
* @type Number
*/
arc: {
value: 0
},
/**
* Radius of the circle in which the pie slice is drawn
*
* @attribute radius
* @type Number
*/
radius: {
value: 0
}
}, Y.SVGShape.ATTRS);
Y.SVGPieSlice = SVGPieSlice;
/**
* Graphic is a simple drawing api that allows for basic drawing operations.
*
* @module graphics
* @class SVGGraphic
* @constructor
*/
SVGGraphic = function(cfg) {
SVGGraphic.superclass.constructor.apply(this, arguments);
};
SVGGraphic.NAME = "svgGraphic";
SVGGraphic.ATTRS = {
render: {},
/**
* Unique id for class instance.
*
* @attribute 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.
*
* @attribute 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.
*
* @attribute contentBounds
* @type Object
* @readOnly
*/
contentBounds: {
readOnly: true,
getter: function()
{
return this._contentBounds;
}
},
/**
* The html element that represents to coordinate system of the Graphic instance.
*
* @attribute node
* @type HTMLElement
* @readOnly
*/
node: {
readOnly: true,
getter: function()
{
return this._node;
}
},
width: {
setter: function(val)
{
if(this._node)
{
this._node.style.width = val + "px";
}
return val;
}
},
height: {
setter: function(val)
{
if(this._node)
{
this._node.style.height = val + "px";
}
return val;
}
},
/**
* Determines how the size of instance is calculated. If true, the width and height are determined by the size of the contents.
* If false, the width and height values are either explicitly set or determined by the size of the parent node's dimensions.
*
* @attribute autoSize
* @type Boolean
* @default false
*/
autoSize: {
value: false
},
/**
* When overflow is set to true, by default, 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.
*
* @attribute resizeDown
* @type Boolean
*/
resizeDown: {
getter: function()
{
return this._resizeDown;
},
setter: function(val)
{
this._resizeDown = val;
this._redraw();
return val;
}
},
/**
* Indicates the x-coordinate for the instance.
*
* @attribute 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.
*
* @attribute 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.
*
* @attribute 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.
*
* @attribute pointerEvents
* @type String
*/
pointerEvents: {
value: "none"
}
};
Y.extend(SVGGraphic, Y.BaseGraphic, {
/**
* @private
*/
_x: 0,
/**
* @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;
},
/**
* @private
* @property _resizeDown
* @type Boolean
*/
_resizeDown: false,
/**
* Initializes the class.
*
* @method initializer
* @private
*/
initializer: function() {
var render = this.get("render");
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._contentNode = this._createGraphics();
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 = Y.one(render),
w = this.get("width") || parseInt(parentNode.getComputedStyle("width"), 10),
h = this.get("height") || parseInt(parentNode.getComputedStyle("height"), 10);
parentNode = parentNode || DOCUMENT.body;
parentNode.appendChild(this._node);
this.parentNode = parentNode;
this.set("width", w);
this.set("height", h);
this.parentNode = parentNode;
return this;
},
/**
* Removes all nodes.
*
* @method destroy
*/
destroy: function()
{
this.removeAllShapes();
this._removeChildren(this._node);
if(this._node && this._node.parentNode)
{
this._node.parentNode.removeChild(this._node);
}
},
/**
* Generates a shape instance by type.
*
* @method getShape
* @param {String} type type of shape to generate.
* @param {Object} cfg attributes for the shape
* @return Shape
*/
getShape: function(cfg)
{
cfg.graphic = this;
var shapeClass = this._getShapeClass(cfg.type),
shape = new shapeClass(cfg);
this.addShape(shape);
return shape;
},
/**
* Adds a shape instance to the graphic instance.
*
* @method addShape
* @param {Shape} shape The shape instance to be added to the graphic.
*/
addShape: 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);
}
}
}
this._contentNode.style.visibility = visibility;
this._node.style.visibility = visibility;
},
/**
* @private
*/
_getShapeClass: function(val)
{
var shape = this._shapeClass[val];
if(shape)
{
return shape;
}
return val;
},
/**
* @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._redraw();
this.set("autoDraw", autoDraw);
},
_getDocFrag: function()
{
if(!this._frag)
{
this._frag = DOCUMENT.createDocumentFragment();
}
return this._frag;
},
_redraw: function()
{
var box = this.get("resizeDown") ? this._getUpdatedContentBounds() : this._contentBounds;
this._contentNode.style.left = box.left + "px";
this._contentNode.style.top = box.top + "px";
this._contentNode.setAttribute("width", box.width);
this._contentNode.setAttribute("height", box.height);
this._contentNode.style.width = box.width + "px";
this._contentNode.style.height = box.height + "px";
this._contentNode.setAttribute("viewBox", "" + box.left + " " + box.top + " " + box.width + " " + box.height + "");
if(this.get("autoSize"))
{
this.set("width", box.right);
this.set("height", box.bottom);
}
if(this._frag)
{
this._contentNode.appendChild(this._frag);
this._frag = null;
}
},
/**
* Adds a shape to the redraw queue and calculates the contentBounds.
*
* @method addToRedrawQueue
* @param shape {SVGShape}
*/
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();
}
},
_getUpdatedContentBounds: function()
{
var bounds,
i,
shape,
queue = this._shapes,
box = {
left: 0,
top: 0,
right: 0,
bottom: 0
};
for(i in queue)
{
if(queue.hasOwnProperty(i))
{
shape = queue[i];
bounds = shape.getBounds();
box.left = Math.min(box.left, bounds.left);
box.top = Math.min(box.top, bounds.top);
box.right = Math.max(box.right, bounds.right);
box.bottom = Math.max(box.bottom, bounds.bottom);
}
}
box.width = box.right - box.left;
box.height = box.bottom - box.top;
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 = "px";
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
*/
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;
}
});
Y.SVGGraphic = SVGGraphic;
}, '@VERSION@' ,{requires:['graphics'], skinnable:false});