File yui3/src/graphics/js/VMLShape.js
/**
* <a href="http://www.w3.org/TR/NOTE-VML">VML</a> implementation of the <a href="Shape.html">`Shape`</a> class.
* `VMLShape` is not intended to be used directly. Instead, use the <a href="Shape.html">`Shape`</a> class.
* If the browser lacks <a href="http://www.w3.org/TR/SVG/">SVG</a> and <a href="http://www.w3.org/TR/html5/the-canvas-element.html">Canvas</a>
* capabilities, the <a href="Shape.html">`Shape`</a> class will point to the `VMLShape` class.
*
* @module graphics
* @class VMLShape
* @constructor
* @param {Object} cfg (optional) Attribute configs
*/
VMLShape = function()
{
this._transforms = [];
this.matrix = new Y.Matrix();
this._normalizedMatrix = new Y.Matrix();
VMLShape.superclass.constructor.apply(this, arguments);
};
VMLShape.NAME = "shape";
Y.extend(VMLShape, Y.GraphicBase, Y.mix({
/**
* Indicates the type of shape
*
* @property _type
* @type String
* @private
*/
_type: "shape",
/**
* Init method, invoked during construction.
* Calls `initializer` method.
*
* @method init
* @protected
*/
init: function()
{
this.initializer.apply(this, arguments);
},
/**
* Initializes the shape
*
* @private
* @method _initialize
*/
initializer: function(cfg)
{
var host = this,
graphic = cfg.graphic,
data = this.get("data");
host.createNode();
if(graphic)
{
this._setGraphic(graphic);
}
if(data)
{
host._parsePathData(data);
}
this._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.VMLGraphic)
{
this._graphic = render;
}
else
{
graphic = new Y.VMLGraphic({
render: render
});
graphic._appendShape(this);
this._graphic = graphic;
this._appendStrokeAndFill();
}
},
/**
* Appends fill and stroke nodes to the shape.
*
* @method _appendStrokeAndFill
* @private
*/
_appendStrokeAndFill: function()
{
if(this._strokeNode)
{
this.node.appendChild(this._strokeNode);
}
if(this._fillNode)
{
this.node.appendChild(this._fillNode);
}
},
/**
* Creates the dom node for the shape.
*
* @method createNode
* @return HTMLElement
* @private
*/
createNode: function()
{
var node,
concat = this._camelCaseConcat,
x = this.get("x"),
y = this.get("y"),
w = this.get("width"),
h = this.get("height"),
id,
type,
name = this.name,
nodestring,
visibility = this.get("visible") ? "visible" : "hidden",
strokestring,
classString,
stroke,
endcap,
opacity,
joinstyle,
miterlimit,
dashstyle,
fill,
fillstring;
id = this.get("id");
type = this._type === "path" ? "shape" : this._type;
classString = _getClassName(SHAPE) +
" " +
_getClassName(concat(IMPLEMENTATION, SHAPE)) +
" " +
_getClassName(name) +
" " +
_getClassName(concat(IMPLEMENTATION, name)) +
" " +
IMPLEMENTATION +
type;
stroke = this._getStrokeProps();
fill = this._getFillProps();
nodestring = '<' +
type +
' xmlns="urn:schemas-microsft.com:vml" id="' +
id +
'" class="' +
classString +
'" style="behavior:url(#default#VML);display:inline-block;position:absolute;left:' +
x +
'px;top:' +
y +
'px;width:' +
w +
'px;height:' +
h +
'px;visibility:' +
visibility +
'"';
if(stroke && stroke.weight && stroke.weight > 0)
{
endcap = stroke.endcap;
opacity = parseFloat(stroke.opacity);
joinstyle = stroke.joinstyle;
miterlimit = stroke.miterlimit;
dashstyle = stroke.dashstyle;
nodestring += ' stroked="t" strokecolor="' + stroke.color + '" strokeWeight="' + stroke.weight + 'px"';
strokestring = '<stroke class="vmlstroke"' +
' xmlns="urn:schemas-microsft.com:vml"' +
' on="t"' +
' style="behavior:url(#default#VML);display:inline-block;"' +
' opacity="' + opacity + '"';
if(endcap)
{
strokestring += ' endcap="' + endcap + '"';
}
if(joinstyle)
{
strokestring += ' joinstyle="' + joinstyle + '"';
}
if(miterlimit)
{
strokestring += ' miterlimit="' + miterlimit + '"';
}
if(dashstyle)
{
strokestring += ' dashstyle="' + dashstyle + '"';
}
strokestring += '></stroke>';
this._strokeNode = DOCUMENT.createElement(strokestring);
nodestring += ' stroked="t"';
}
else
{
nodestring += ' stroked="f"';
}
if(fill)
{
if(fill.node)
{
fillstring = fill.node;
this._fillNode = DOCUMENT.createElement(fillstring);
}
if(fill.color)
{
nodestring += ' fillcolor="' + fill.color + '"';
}
nodestring += ' filled="' + fill.filled + '"';
}
nodestring += '>';
nodestring += '</' + type + '>';
node = DOCUMENT.createElement(nodestring);
this.node = node;
this._strokeFlag = false;
this._fillFlag = false;
},
/**
* 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;
Y_DOM.addClass(node, className);
},
/**
* Removes a class name from each node.
*
* @method removeClass
* @param {String} className the class name to remove from the node's class attribute
*/
removeClass: function(className)
{
var node = this.node;
Y_DOM.removeClass(node, className);
},
/**
* Gets the current position of the node in page coordinates.
*
* @method getXY
* @return Array The XY position of the shape.
*/
getXY: function()
{
var graphic = this._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 {VMLShape | 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);
},
/**
* Calculates and returns properties for setting an initial stroke.
*
* @method _getStrokeProps
* @return Object
*
* @private
*/
_getStrokeProps: function()
{
var props,
stroke = this.get("stroke"),
strokeOpacity,
dashstyle,
dash = "",
val,
i = 0,
len,
linecap,
linejoin;
if(stroke && stroke.weight && stroke.weight > 0)
{
props = {};
linecap = stroke.linecap || "flat";
linejoin = stroke.linejoin || "round";
if(linecap !== "round" && linecap !== "square")
{
linecap = "flat";
}
strokeOpacity = parseFloat(stroke.opacity);
dashstyle = stroke.dashstyle || "none";
stroke.color = stroke.color || "#000000";
stroke.weight = stroke.weight || 1;
stroke.opacity = IS_NUM(strokeOpacity) ? strokeOpacity : 1;
props.stroked = true;
props.color = stroke.color;
props.weight = stroke.weight;
props.endcap = linecap;
props.opacity = stroke.opacity;
if(IS_ARRAY(dashstyle))
{
dash = [];
len = dashstyle.length;
for(i = 0; i < len; ++i)
{
val = dashstyle[i];
dash[i] = val / stroke.weight;
}
}
if(linejoin === "round" || linejoin === "bevel")
{
props.joinstyle = linejoin;
}
else
{
linejoin = parseInt(linejoin, 10);
if(IS_NUM(linejoin))
{
props.miterlimit = Math.max(linejoin, 1);
props.joinstyle = "miter";
}
}
props.dashstyle = dash;
}
return props;
},
/**
* Adds a stroke to the shape node.
*
* @method _strokeChangeHandler
* @private
*/
_strokeChangeHandler: function()
{
if(!this._strokeFlag)
{
return;
}
var node = this.node,
stroke = this.get("stroke"),
strokeOpacity,
dashstyle,
dash = "",
val,
i = 0,
len,
linecap,
linejoin;
if(stroke && stroke.weight && stroke.weight > 0)
{
linecap = stroke.linecap || "flat";
linejoin = stroke.linejoin || "round";
if(linecap !== "round" && linecap !== "square")
{
linecap = "flat";
}
strokeOpacity = parseFloat(stroke.opacity);
dashstyle = stroke.dashstyle || "none";
stroke.color = stroke.color || "#000000";
stroke.weight = stroke.weight || 1;
stroke.opacity = IS_NUM(strokeOpacity) ? strokeOpacity : 1;
node.stroked = true;
node.strokeColor = stroke.color;
node.strokeWeight = stroke.weight + "px";
if(!this._strokeNode)
{
this._strokeNode = this._createGraphicNode("stroke");
node.appendChild(this._strokeNode);
}
this._strokeNode.endcap = linecap;
this._strokeNode.opacity = stroke.opacity;
if(IS_ARRAY(dashstyle))
{
dash = [];
len = dashstyle.length;
for(i = 0; i < len; ++i)
{
val = dashstyle[i];
dash[i] = val / stroke.weight;
}
}
if(linejoin === "round" || linejoin === "bevel")
{
this._strokeNode.joinstyle = linejoin;
}
else
{
linejoin = parseInt(linejoin, 10);
if(IS_NUM(linejoin))
{
this._strokeNode.miterlimit = Math.max(linejoin, 1);
this._strokeNode.joinstyle = "miter";
}
}
this._strokeNode.dashstyle = dash;
this._strokeNode.on = true;
}
else
{
if(this._strokeNode)
{
this._strokeNode.on = false;
}
node.stroked = false;
}
this._strokeFlag = false;
},
/**
* Calculates and returns properties for setting an initial fill.
*
* @method _getFillProps
* @return Object
*
* @private
*/
_getFillProps: function()
{
var fill = this.get("fill"),
fillOpacity,
props,
gradient,
i,
fillstring,
filled = false;
if(fill)
{
props = {};
if(fill.type === "radial" || fill.type === "linear")
{
fillOpacity = parseFloat(fill.opacity);
fillOpacity = IS_NUM(fillOpacity) ? fillOpacity : 1;
filled = true;
gradient = this._getGradientFill(fill);
fillstring = '<fill xmlns="urn:schemas-microsft.com:vml"' +
' class="vmlfill" style="behavior:url(#default#VML);display:inline-block;"' +
' opacity="' + fillOpacity + '"';
for(i in gradient)
{
if(gradient.hasOwnProperty(i))
{
fillstring += ' ' + i + '="' + gradient[i] + '"';
}
}
fillstring += ' />';
props.node = fillstring;
}
else if(fill.color)
{
fillOpacity = parseFloat(fill.opacity);
filled = true;
props.color = fill.color;
if(IS_NUM(fillOpacity))
{
fillOpacity = Math.max(Math.min(fillOpacity, 1), 0);
props.opacity = fillOpacity;
if(fillOpacity < 1)
{
props.node = '<fill xmlns="urn:schemas-microsft.com:vml"' +
' class="vmlfill" style="behavior:url(#default#VML);display:inline-block;"' +
' type="solid" opacity="' + fillOpacity + '"/>';
}
}
}
props.filled = filled;
}
return props;
},
/**
* Adds a fill to the shape node.
*
* @method _fillChangeHandler
* @private
*/
_fillChangeHandler: function()
{
if(!this._fillFlag)
{
return;
}
var node = this.node,
fill = this.get("fill"),
fillOpacity,
fillstring,
filled = false,
i,
gradient;
if(fill)
{
if(fill.type === "radial" || fill.type === "linear")
{
filled = true;
gradient = this._getGradientFill(fill);
if(this._fillNode)
{
for(i in gradient)
{
if(gradient.hasOwnProperty(i))
{
if(i === "colors")
{
this._fillNode.colors.value = gradient[i];
}
else
{
this._fillNode[i] = gradient[i];
}
}
}
}
else
{
fillstring = '<fill xmlns="urn:schemas-microsft.com:vml"' +
' class="vmlfill"' +
' style="behavior:url(#default#VML);display:inline-block;"';
for(i in gradient)
{
if(gradient.hasOwnProperty(i))
{
fillstring += ' ' + i + '="' + gradient[i] + '"';
}
}
fillstring += ' />';
this._fillNode = DOCUMENT.createElement(fillstring);
node.appendChild(this._fillNode);
}
}
else if(fill.color)
{
node.fillcolor = fill.color;
fillOpacity = parseFloat(fill.opacity);
filled = true;
if(IS_NUM(fillOpacity) && fillOpacity < 1)
{
fill.opacity = fillOpacity;
if(this._fillNode)
{
if(this._fillNode.getAttribute("type") !== "solid")
{
this._fillNode.type = "solid";
}
this._fillNode.opacity = fillOpacity;
}
else
{
fillstring = '<fill xmlns="urn:schemas-microsft.com:vml"' +
' class="vmlfill"' +
' style="behavior:url(#default#VML);display:inline-block;"' +
' type="solid"' +
' opacity="' + fillOpacity + '"' +
'/>';
this._fillNode = DOCUMENT.createElement(fillstring);
node.appendChild(this._fillNode);
}
}
else if(this._fillNode)
{
this._fillNode.opacity = 1;
this._fillNode.type = "solid";
}
}
}
node.filled = filled;
this._fillFlag = false;
},
//not used. remove next release.
_updateFillNode: function(node)
{
if(!this._fillNode)
{
this._fillNode = this._createGraphicNode("fill");
node.appendChild(this._fillNode);
}
},
/**
* Calculates and returns an object containing gradient properties for a fill node.
*
* @method _getGradientFill
* @param {Object} fill Object containing fill properties.
* @return Object
* @private
*/
_getGradientFill: function(fill)
{
var gradientProps = {},
gradientBoxWidth,
gradientBoxHeight,
type = fill.type,
w = this.get("width"),
h = this.get("height"),
isNumber = IS_NUM,
stop,
stops = fill.stops,
len = stops.length,
opacity,
color,
i,
oi,
colorstring = "",
cx = fill.cx,
cy = fill.cy,
fx = fill.fx,
fy = fill.fy,
r = fill.r,
pct,
rotation = fill.rotation || 0;
if(type === "linear")
{
if(rotation <= 270)
{
rotation = Math.abs(rotation - 270);
}
else if(rotation < 360)
{
rotation = 270 + (360 - rotation);
}
else
{
rotation = 270;
}
gradientProps.type = "gradient";//"gradientunscaled";
gradientProps.angle = rotation;
}
else if(type === "radial")
{
gradientBoxWidth = w * (r * 2);
gradientBoxHeight = h * (r * 2);
fx = r * 2 * (fx - 0.5);
fy = r * 2 * (fy - 0.5);
fx += cx;
fy += cy;
gradientProps.focussize = (gradientBoxWidth/w)/10 + "% " + (gradientBoxHeight/h)/10 + "%";
gradientProps.alignshape = false;
gradientProps.type = "gradientradial";
gradientProps.focus = "100%";
gradientProps.focusposition = Math.round(fx * 100) + "% " + Math.round(fy * 100) + "%";
}
for(i = 0;i < len; ++i) {
stop = stops[i];
color = stop.color;
opacity = stop.opacity;
opacity = isNumber(opacity) ? opacity : 1;
pct = stop.offset || i/(len-1);
pct *= (r * 2);
pct = Math.round(100 * pct) + "%";
oi = i > 0 ? i + 1 : "";
gradientProps["opacity" + oi] = opacity + "";
colorstring += ", " + pct + " " + color;
}
if(parseFloat(pct) < 100)
{
colorstring += ", 100% " + color;
}
gradientProps.colors = colorstring.substr(2);
return gradientProps;
},
/**
* Adds a transform to the shape.
*
* @method _addTransform
* @param {String} type The transform being applied.
* @param {Array} args The arguments for the transform.
* @private
*/
_addTransform: function(type, args)
{
args = Y.Array(args);
this._transform = Y_LANG.trim(this._transform + " " + type + "(" + args.join(", ") + ")");
args.unshift(type);
this._transforms.push(args);
if(this.initialized)
{
this._updateTransform();
}
},
/**
* Applies all transforms.
*
* @method _updateTransform
* @private
*/
_updateTransform: function()
{
var node = this.node,
key,
transform,
transformOrigin,
x = this.get("x"),
y = this.get("y"),
tx,
ty,
matrix = this.matrix,
normalizedMatrix = this._normalizedMatrix,
isPathShape = this instanceof Y.VMLPath,
i,
len = this._transforms.length;
if(this._transforms && this._transforms.length > 0)
{
transformOrigin = this.get("transformOrigin");
if(isPathShape)
{
normalizedMatrix.translate(this._left, this._top);
}
//vml skew matrix transformOrigin ranges from -0.5 to 0.5.
//subtract 0.5 from values
tx = transformOrigin[0] - 0.5;
ty = transformOrigin[1] - 0.5;
//ensure the values are within the appropriate range to avoid errors
tx = Math.max(-0.5, Math.min(0.5, tx));
ty = Math.max(-0.5, Math.min(0.5, 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(isPathShape)
{
normalizedMatrix.translate(-this._left, -this._top);
}
transform = normalizedMatrix.a + "," +
normalizedMatrix.c + "," +
normalizedMatrix.b + "," +
normalizedMatrix.d + "," +
0 + "," +
0;
}
this._graphic.addToRedrawQueue(this);
if(transform)
{
if(!this._skew)
{
this._skew = DOCUMENT.createElement(
'<skew class="vmlskew"' +
' xmlns="urn:schemas-microsft.com:vml"' +
' on="false"' +
' style="behavior:url(#default#VML);display:inline-block;"' +
'/>'
);
this.node.appendChild(this._skew);
}
this._skew.matrix = transform;
this._skew.on = true;
//this._skew.offset = this._getSkewOffsetValue(normalizedMatrix.dx) + "px, " + this._getSkewOffsetValue(normalizedMatrix.dy) + "px";
this._skew.origin = tx + ", " + ty;
}
if(this._type !== "path")
{
this._transforms = [];
}
//add the translate to the x and y coordinates
node.style.left = (x + this._getSkewOffsetValue(normalizedMatrix.dx)) + "px";
node.style.top = (y + this._getSkewOffsetValue(normalizedMatrix.dy)) + "px";
},
/**
* Normalizes the skew offset values between -32767 and 32767.
*
* @method _getSkewOffsetValue
* @param {Number} val The value to normalize
* @return Number
* @private
*/
_getSkewOffsetValue: function(val)
{
var sign = Y.MatrixUtil.sign(val),
absVal = Math.abs(val);
val = Math.min(absVal, 32767) * sign;
return val;
},
/**
* Storage for translateX
*
* @property _translateX
* @type Number
* @private
*/
_translateX: 0,
/**
* Storage for translateY
*
* @property _translateY
* @type Number
* @private
*/
_translateY: 0,
/**
* Storage for the transform attribute.
*
* @property _transform
* @type String
* @private
*/
_transform: "",
/**
* Specifies a 2d translation.
*
* @method translate
* @param {Number} x The value to translate on the x-axis.
* @param {Number} y The value to translate on the y-axis.
*/
translate: function(x, y)
{
this._translateX += x;
this._translateY += y;
this._addTransform("translate", arguments);
},
/**
* Translates the shape along the x-axis. When translating x and y coordinates,
* use the `translate` method.
*
* @method translateX
* @param {Number} x The value to translate.
*/
translateX: function(x)
{
this._translateX += x;
this._addTransform("translateX", arguments);
},
/**
* Performs a translate on the y-coordinate. When translating x and y coordinates,
* use the `translate` method.
*
* @method translateY
* @param {Number} y The value to translate.
*/
translateY: function(y)
{
this._translateY += y;
this._addTransform("translateY", arguments);
},
/**
* Skews the shape around the x-axis and y-axis.
*
* @method skew
* @param {Number} x The value to skew on the x-axis.
* @param {Number} y The value to skew on the y-axis.
*/
skew: function()
{
this._addTransform("skew", arguments);
},
/**
* Skews the shape around the x-axis.
*
* @method skewX
* @param {Number} x x-coordinate
*/
skewX: function()
{
this._addTransform("skewX", arguments);
},
/**
* Skews the shape around the y-axis.
*
* @method skewY
* @param {Number} y y-coordinate
*/
skewY: function()
{
this._addTransform("skewY", arguments);
},
/**
* Rotates the shape clockwise around it transformOrigin.
*
* @method rotate
* @param {Number} deg The degree of the rotation.
*/
rotate: function()
{
this._addTransform("rotate", arguments);
},
/**
* Specifies a 2d scaling operation.
*
* @method scale
* @param {Number} val
*/
scale: function()
{
this._addTransform("scale", arguments);
},
/**
* 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);
},
/**
* Draws the shape.
*
* @method _draw
* @private
*/
_draw: function()
{
},
/**
* Updates `Shape` based on attribute changes.
*
* @method _updateHandler
* @private
*/
_updateHandler: function()
{
var host = this,
node = host.node;
host._fillChangeHandler();
host._strokeChangeHandler();
node.style.width = this.get("width") + "px";
node.style.height = this.get("height") + "px";
this._draw();
host._updateTransform();
},
/**
* Creates a graphic node
*
* @method _createGraphicNode
* @param {String} type node type to create
* @return HTMLElement
* @private
*/
_createGraphicNode: function(type)
{
type = type || this._type;
return DOCUMENT.createElement(
'<' + type +
' xmlns="urn:schemas-microsft.com:vml"' +
' style="behavior:url(#default#VML);display:inline-block;"' +
' class="vml' + type + '"' +
'/>'
);
},
/**
* 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
};
},
/**
* 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();
}
},
/**
* 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 isPathShape = this instanceof Y.VMLPath,
w = this.get("width"),
h = this.get("height"),
x = this.get("x"),
y = this.get("y");
if(isPathShape)
{
x = x + this._left;
y = y + this._top;
w = this._right - this._left;
h = this._bottom - this._top;
}
return this._getContentRect(w, h, x, y);
},
/**
* Calculates the bounding box for the shape.
*
* @method _getContentRect
* @param {Number} w width of the shape
* @param {Number} h height of the shape
* @param {Number} x x-coordinate of the shape
* @param {Number} y y-coordinate of the shape
* @private
*/
_getContentRect: function(w, h, x, y)
{
var transformOrigin = this.get("transformOrigin"),
transformX = transformOrigin[0] * w,
transformY = transformOrigin[1] * h,
transforms = this.matrix.getTransformArray(this.get("transform")),
matrix = new Y.Matrix(),
i,
len = transforms.length,
transform,
key,
contentRect,
isPathShape = this instanceof Y.VMLPath;
if(isPathShape)
{
matrix.translate(this._left, this._top);
}
transformX = !isNaN(transformX) ? transformX : 0;
transformY = !isNaN(transformY) ? transformY : 0;
matrix.translate(transformX, transformY);
for(i = 0; i < len; i = i + 1)
{
transform = transforms[i];
key = transform.shift();
if(key)
{
matrix[key].apply(matrix, transform);
}
}
matrix.translate(-transformX, -transformY);
if(isPathShape)
{
matrix.translate(-this._left, -this._top);
}
contentRect = matrix.getContentRect(w, h, x, y);
return contentRect;
},
/**
* Places the shape above all other shapes.
*
* @method toFront
*/
toFront: function()
{
var graphic = this.get("graphic");
if(graphic)
{
graphic._toFront(this);
}
},
/**
* Places the shape underneath all other shapes.
*
* @method toFront
*/
toBack: function()
{
var graphic = this.get("graphic");
if(graphic)
{
graphic._toBack(this);
}
},
/**
* Parses path data string and call mapped methods.
*
* @method _parsePathData
* @param {String} val The path data
* @private
*/
_parsePathData: function(val)
{
var method,
methodSymbol,
args,
commandArray = Y.Lang.trim(val.match(SPLITPATHPATTERN)),
i,
len,
str,
symbolToMethod = this._pathSymbolToMethod;
if(commandArray)
{
this.clear();
len = commandArray.length || 0;
for(i = 0; i < len; i = i + 1)
{
str = commandArray[i];
methodSymbol = str.substr(0, 1);
args = str.substr(1).match(SPLITARGSPATTERN);
method = symbolToMethod[methodSymbol];
if(method)
{
if(args)
{
this[method].apply(this, args);
}
else
{
this[method].apply(this);
}
}
}
this.end();
}
},
/**
* Destroys shape
*
* @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)
{
if(this._fillNode)
{
this.node.removeChild(this._fillNode);
this._fillNode = null;
}
if(this._strokeNode)
{
this.node.removeChild(this._strokeNode);
this._strokeNode = null;
}
Y.Event.purgeElement(this.node, true);
if(this.node.parentNode)
{
this.node.parentNode.removeChild(this.node);
}
this.node = null;
}
}
}, Y.VMLDrawing.prototype));
VMLShape.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)
{
var i,
len,
transform;
this.matrix.init();
this._normalizedMatrix.init();
this._transforms = this.matrix.getTransformArray(val);
len = this._transforms.length;
for(i = 0;i < len; ++i)
{
transform = this._transforms[i];
}
this._transform = val;
return val;
},
getter: function()
{
return this._transform;
}
},
/**
* Indicates the x position of shape.
*
* @config x
* @type Number
*/
x: {
value: 0
},
/**
* Indicates the y position of shape.
*
* @config y
* @type Number
*/
y: {
value: 0
},
/**
* 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;
}
},
/**
*
* @config width
*/
width: {
value: 0
},
/**
*
* @config height
*/
height: {
value: 0
},
/**
* Indicates whether the shape is visible.
*
* @config visible
* @type Boolean
*/
visible: {
value: true,
setter: function(val){
var node = this.node,
visibility = val ? "visible" : "hidden";
if(node)
{
node.style.visibility = visibility;
}
return val;
}
},
/**
* Contains information about the fill of the shape.
* <dl>
* <dt>color</dt><dd>The color of the fill.</dd>
* <dt>opacity</dt><dd>Number between 0 and 1 that indicates the opacity of the fill. The default value is 1.</dd>
* <dt>type</dt><dd>Type of fill.
* <dl>
* <dt>solid</dt><dd>Solid single color fill. (default)</dd>
* <dt>linear</dt><dd>Linear gradient fill.</dd>
* <dt>radial</dt><dd>Radial gradient fill.</dd>
* </dl>
* </dd>
* </dl>
* <p>If a `linear` or `radial` is specified as the fill type. The following additional property is used:
* <dl>
* <dt>stops</dt><dd>An array of objects containing the following properties:
* <dl>
* <dt>color</dt><dd>The color of the stop.</dd>
* <dt>opacity</dt><dd>Number between 0 and 1 that indicates the opacity of the stop. The default value is 1.
* Note: No effect for IE 6 - 8</dd>
* <dt>offset</dt><dd>Number between 0 and 1 indicating where the color stop is positioned.</dd>
* </dl>
* </dd>
* <p>Linear gradients also have the following property:</p>
* <dt>rotation</dt><dd>Linear gradients flow left to right by default. The rotation property allows you to change the
* flow by rotation. (e.g. A rotation of 180 would make the gradient pain from right to left.)</dd>
* <p>Radial gradients have the following additional properties:</p>
* <dt>r</dt><dd>Radius of the gradient circle.</dd>
* <dt>fx</dt><dd>Focal point x-coordinate of the gradient.</dd>
* <dt>fy</dt><dd>Focal point y-coordinate of the gradient.</dd>
* </dl>
* <p>The corresponding `SVGShape` class implements the following additional properties.</p>
* <dl>
* <dt>cx</dt><dd>
* <p>The x-coordinate of the center of the gradient circle. Determines where the color stop begins. The default value 0.5.</p>
* <p><strong>Note: </strong>Currently, this property is not implemented for corresponding `CanvasShape` and
* `VMLShape` classes which are used on Android or IE 6 - 8.</p>
* </dd>
* <dt>cy</dt><dd>
* <p>The y-coordinate of the center of the gradient circle. Determines where the color stop begins. The default value 0.5.</p>
* <p><strong>Note: </strong>Currently, this property is not implemented for corresponding `CanvasShape` and `VMLShape`
* classes which are used on Android or IE 6 - 8.</p>
* </dd>
* </dl>
* <p>These properties are not currently implemented in `CanvasShape` or `VMLShape`.</p>
*
* @config fill
* @type Object
*/
fill: {
valueFn: "_getDefaultFill",
setter: function(val)
{
var i,
fill,
tmpl = this.get("fill") || this._getDefaultFill();
if(val)
{
//ensure, fill type is solid if color is explicitly passed.
if(val.hasOwnProperty("color"))
{
val.type = "solid";
}
for(i in val)
{
if(val.hasOwnProperty(i))
{
tmpl[i] = val[i];
}
}
}
fill = tmpl;
if(fill && fill.color)
{
if(fill.color === undefined || fill.color === "none")
{
fill.color = null;
}
else
{
if(fill.color.toLowerCase().indexOf("rgba") > -1)
{
fill.opacity = Y.Color._getAlpha(fill.color);
fill.color = Y.Color.toHex(fill.color);
}
}
}
this._fillFlag = true;
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 i,
stroke,
wt,
tmpl = this.get("stroke") || this._getDefaultStroke();
if(val)
{
if(val.hasOwnProperty("weight"))
{
wt = parseInt(val.weight, 10);
if(!isNaN(wt))
{
val.weight = wt;
}
}
for(i in val)
{
if(val.hasOwnProperty(i))
{
tmpl[i] = val[i];
}
}
}
if(tmpl.color && tmpl.color.toLowerCase().indexOf("rgba") > -1)
{
tmpl.opacity = Y.Color._getAlpha(tmpl.color);
tmpl.color = Y.Color.toHex(tmpl.color);
}
stroke = tmpl;
this._strokeFlag = true;
return stroke;
}
},
//Not used. Remove in future.
autoSize: {
value: false
},
// Only implemented in SVG
// Determines whether the instance will receive mouse events.
//
// @config pointerEvents
// @type string
//
pointerEvents: {
value: "visiblePainted"
},
/**
* 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 container Graphic.
*
* @config graphic
* @type Graphic
*/
graphic: {
readOnly: true,
getter: function()
{
return this._graphic;
}
}
};
Y.VMLShape = VMLShape;