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Change handling of clipping by always drawing clip-masks first, no matter where they are in the sequence.

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This commit is contained in:
Jürg Lehni 2011-06-17 14:05:37 +01:00
parent f4d15200ee
commit 87df7eb1f9
1 changed files with 16 additions and 6 deletions
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22
src/item/Group.js
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@ -75,6 +75,15 @@ var Group = this.Group = Item.extend({
|| typeof items[0] !== 'object' ? arguments : items);
},
_getClipMask: function() {
// TODO: Use caching once ChangeFlags.HIERARCHY is implemented
for (var i = 0, l = this._children.length; i < l; i++) {
var child = this._children[i];
if (child._clipMask)
return child;
}
},
/**
* Specifies whether the group item is to be clipped.
* When setting to {@code true}, the first child in the group is
@ -84,11 +93,7 @@ var Group = this.Group = Item.extend({
* @bean
*/
isClipped: function() {
for (var i = 0, l = this._children.length; i < l; i++) {
if (this._children[i]._clipMask)
return true;
}
return false;
return !!this._getClipMask();
},
setClipped: function(clipped) {
@ -99,8 +104,13 @@ var Group = this.Group = Item.extend({
},
draw: function(ctx, param) {
var clipMask = this._getClipMask();
if (clipMask)
Item.draw(clipMask, ctx, param);
for (var i = 0, l = this._children.length; i < l; i++) {
Item.draw(this._children[i], ctx, param);
var item = this._children[i];
if (item != clipMask)
Item.draw(item, ctx, param);
}
}
});