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SVG.Clip = function() {
this.constructor.call(this, SVG.create('clipPath'))
/* keep references to clipped elements */
this.targets = []
}
// Inherit from SVG.Container
SVG.Clip.prototype = new SVG.Container
//
SVG.extend(SVG.Clip, {
// Unclip all clipped elements and remove itself
remove: function() {
/* unclip all targets */
for (var i = this.targets.length - 1; i >= 0; i--)
if (this.targets[i])
this.targets[i].unclip()
delete this.targets
/* remove clipPath from parent */
this.parent.removeElement(this)
return this
}
})
//
SVG.extend(SVG.Element, {
// Distribute clipPath to svg element
clipWith: function(element) {
/* use given clip or create a new one */
this.clipper = element instanceof SVG.Clip ? element : this.parent.clip().add(element)
/* store reverence on self in mask */
this.clipper.targets.push(this)
/* apply mask */
return this.attr('clip-path', 'url(#' + this.clipper.attr('id') + ')')
}
// Unclip element
, unclip: function() {
delete this.clipper
return this.attr('clip-path', null)
}
})
//
SVG.extend(SVG.Container, {
// Create clipping element
clip: function() {
return this.defs().put(new SVG.Clip)
}
})
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