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introduce a parameter to choose behaviour of background and overlay (#3019)

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* introduce a parameter to choose behaviour of background and overlay
This commit is contained in:
Andrea Bogazzi 2016-05-30 23:33:02 +02:00
parent d4e723e49d
commit 5a6b11ef50
1 changed files with 21 additions and 0 deletions
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21
src/static_canvas.class.js
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@ -147,6 +147,22 @@
*/
viewportTransform: [1, 0, 0, 1, 0, 0],
/**
* if set to false background image is not affected by viewport transform
* @since 1.6.3
* @type Boolean
* @default
*/
backgroundVpt: true,
/**
* if set to false overlya image is not affected by viewport transform
* @since 1.6.3
* @type Boolean
* @default
*/
overlayVpt: true,
/**
* Callback; invoked right before object is about to be scaled/rotated
*/
@ -922,7 +938,12 @@
}
object = this[property + 'Image'];
if (object) {
if (this[property + 'Vpt']) {
ctx.save();
ctx.transform.apply(ctx, this.viewportTransform);
}
object.render(ctx);
this[property + 'Vpt'] && ctx.restore();
}
},