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Only transform canvas if matrix is not the identity.

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This commit is contained in:
Jürg Lehni 2016-01-07 22:07:26 +01:00
parent 7969e4647c
commit 56869baaad
1 changed files with 4 additions and 1 deletions
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5
src/basic/Matrix.js
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@ -757,7 +757,10 @@ var Matrix = Base.extend(/** @lends Matrix# */{
* @param {CanvasRenderingContext2D} ctx
*/
applyToContext: function(ctx) {
ctx.transform(this._a, this._c, this._b, this._d, this._tx, this._ty);
if (!this.isIdentity()) {
ctx.transform(this._a, this._c, this._b, this._d,
this._tx, this._ty);
}
}
}, Base.each(['a', 'c', 'b', 'd', 'tx', 'ty'], function(name) {
// Create getters and setters for all internal attributes.