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// methods for container elements like SVG.Doc, SVG.Group, SVG.Defs, ...
SVG.Container = {
// add given element at goven position
add: function(e, i) {
if (!this.has(e)) {
i = i == null ? this.children().length : i;
this.children().splice(i, 0, e);
this.node.insertBefore(e.node, this.node.childNodes[i] || null);
e.parent = this;
}
return this;
},
// basically does the same as add() but returns the added element rather than 'this'
put: function(e, i) {
this.add(e, i);
return e;
},
// chacks if the given element is a child
has: function(e) {
return this.children().indexOf(e) >= 0;
},
// returns all child elements and initializes store array if non existant
children: function() {
return this._children || (this._children = []);
},
// iterates over all children
each: function(b) {
var i,
c = this.children();
// iteralte all shapes
for (i = 0, l = c.length; i < l; i++)
if (c[i] instanceof SVG.Shape)
b.apply(c[i], [i, c]);
return this;
},
// remove a given child element
remove: function(e) {
return this.removeAt(this.children().indexOf(e));
},
// remove child element at a given position
removeAt: function(i) {
if (0 <= i && i < this.children().length) {
var e = this.children()[i];
this.children().splice(i, 1);
this.node.removeChild(e.node);
e.parent = null;
}
return this;
},
// returns defs element and initializes store array if non existant
defs: function() {
return this._defs || (this._defs = this.put(new SVG.Defs(), 0));
},
// re-level defs to first positon in element stack
level: function() {
return this.remove(d).put(this.defs(), 0);
},
// create a group element
group: function() {
return this.put(new SVG.G());
},
// create a rect element
rect: function(w, h) {
return this.put(new SVG.Rect().size(w, h));
},
// create circle element, based on ellipse
circle: function(d) {
return this.ellipse(d);
},
// create and ellipse
ellipse: function(w, h) {
return this.put(new SVG.Ellipse().size(w, h));
},
// create a polyline element
polyline: function(p) {
return this.put(new Wrap(new SVG.Polyline())).plot(p);
},
// create a polygon element
polygon: function(p) {
return this.put(new Wrap(new SVG.Polygon())).plot(p);
},
// create a wrapped path element
path: function(d) {
return this.put(new Wrap(new SVG.Path())).plot(d);
},
// create image element, load image and set its size
image: function(s, w, h) {
w = w != null ? w : 100;
return this.put(new SVG.Image().load(s).size(w, h != null ? h : w));
},
// create text element
text: function(t) {
return this.put(new SVG.Text().text(t));
},
// create nested svg document
nested: function(s) {
return this.put(new SVG.Nested());
},
// create element in defs
gradient: function(t, b) {
return this.defs().gradient(t, b);
},
// create masking element
mask: function() {
return this.defs().put(new SVG.Mask());
},
// get first child, skipping the defs node
first: function() {
return this.children()[1];
},
// let the last child
last: function() {
return this.children()[this.children().length - 1];
},
// clears all elements of this container
clear: function() {
this._children = [];
while (this.node.hasChildNodes())
this.node.removeChild(this.node.lastChild);
return this;
},
// hack for safari preventing text to be rendered in one line,
// basically it sets the position of the svg node to absolute
// when the dom is loaded, and resets it to relative a few ms later.
stage: function() {
var r, e = this;
r = function() {
if (document.readyState === 'complete') {
e.attr('style', 'position:absolute;');
setTimeout(function() { e.attr('style', 'position:relative;'); }, 5);
} else {
setTimeout(r, 10);
}
};
r();
return this;
}
};
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