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// add backward / forward functionality to elements
SVG.extend(SVG.Element, {
// get all siblings, including myself
siblings: function() {
return this.parent.children();
},
// get the curent position siblings
position: function() {
return this.siblings().indexOf(this);
},
// send given element one step forwards
forward: function() {
var i = this.siblings().indexOf(this);
return this.parent.remove(this).put(this, i + 1);
},
// send given element one step backwards
backward: function() {
var i, p = this.parent.level();
i = this.position();
if (i > 1)
p.remove(this).add(this, i - 1);
return this;
},
// send given element all the way to the front
front: function() {
return this.parent.remove(this).put(this);
},
// send given element all the way to the back
back: function() {
var p = this.parent.level();
if (this.position() > 1)
p.remove(this).add(this, 0);
return this;
}
});
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