paper.js/src/item/Group.js

54 lines
1.3 KiB
JavaScript

/*
* Paper.js
*
* This file is part of Paper.js, a JavaScript Vector Graphics Library,
* based on Scriptographer.org and designed to be largely API compatible.
* http://paperjs.org/
* http://scriptographer.org/
*
* Distributed under the MIT license. See LICENSE file for details.
*
* Copyright (c) 2011, Juerg Lehni & Jonathan Puckey
* http://lehni.org/ & http://jonathanpuckey.com/
*
* All rights reserved.
*/
var Group = this.Group = Item.extend({
beans: true,
initialize: function(items) {
this.base();
this._children = [];
this._namedChildren = {};
this._clipped = false;
this.setChildren(!items || !Array.isArray(items)
|| typeof items[0] !== 'object' ? arguments : items);
},
/**
* Specifies whether the group item is to be clipped.
* When setting to true, the first child in the group is automatically
* defined as the clipping mask.
*
* @return true if the group item is to be clipped, false otherwise.
*/
isClipped: function() {
return this._clipped;
},
setClipped: function(clipped) {
this._clipped = clipped;
var child = this.getFirstChild();
if (child)
child.setClipMask(clipped);
},
draw: function(ctx, param) {
for (var i = 0, l = this._children.length; i < l; i++) {
Item.draw(this._children[i], ctx, param);
if (this._clipped && i == 0)
ctx.clip();
}
}
});