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SVG.Wrap = function Wrap(element) {
this.constructor.call(this, SVG.create('g'));
/* insert and store child */
this.node.insertBefore(element.node, null);
this.child = element;
this.type = element.node.nodeName;
};
// inherit from SVG.Shape
SVG.Wrap.prototype = new SVG.Shape();
SVG.extend(SVG.Wrap, {
// Move wrapper around
move: function(x, y) {
return this.center(
x + (this._b.width * this.child.trans.scaleX) / 2,
y + (this._b.height * this.child.trans.scaleY) / 2
);
},
// Set the actual size in pixels
size: function(width, height) {
var scale = width / this._b.width;
this.child.transform({
scaleX: scale,
scaleY: height != null ? height / this._b.height : scale
});
return this;
},
// Move by center
center: function(x, y) {
return this.transform({
x: x,
y: y
});
},
// Create distributed attr
attr: function(a, v, n) {
/* call individual attributes if an object is given */
if (typeof a == 'object') {
for (v in a) this.attr(v, a[v]);
/* act as a getter if only one argument is given */
} else if (arguments.length < 2) {
return a == 'transform' ? this.attrs[a] : this.child.attrs[a];
/* apply locally for certain attributes */
} else if (a == 'transform') {
this.attrs[a] = v;
n != null ?
this.node.setAttributeNS(n, a, v) :
this.node.setAttribute(a, v);
/* apply attributes to child */
} else {
this.child.attr(a, v, n);
}
return this;
},
// Distribute plot method to child
plot: function(data) {
/* plot new shape */
this.child.plot(data);
/* get and store new bbox */
this._b = this.child.bbox();
/* reposition element withing wrapper */
this.child.transform({
x: -this._b.cx,
y: -this._b.cy
});
return this;
}
});
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