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Fix Raster#clear() to propagate content change

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This commit is contained in:
Jürg Lehni 2019-06-05 15:31:09 +02:00
parent 330b7d0eb9
commit de36f39cbf
1 changed files with 5 additions and 5 deletions
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10
src/item/Raster.js
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@ -33,7 +33,7 @@ var Raster = Item.extend(/** @lends Raster# */{
_prioritize: ['crossOrigin'], _prioritize: ['crossOrigin'],
_smoothing: true, _smoothing: true,
// Enforce creation of beans, as bean getters have hidden parameters. // Enforce creation of beans, as bean getters have hidden parameters.
// See #getContext(modify) below. // See #getContext(_change) below.
beans: true, beans: true,
// TODO: Implement type, width, height. // TODO: Implement type, width, height.
@ -354,13 +354,13 @@ var Raster = Item.extend(/** @lends Raster# */{
* @bean * @bean
* @type CanvasRenderingContext2D * @type CanvasRenderingContext2D
*/ */
getContext: function(modify) { getContext: function(_change) {
if (!this._context) if (!this._context)
this._context = this.getCanvas().getContext('2d'); this._context = this.getCanvas().getContext('2d');
// Support a hidden parameter that indicates if the context will be used // Support a hidden parameter that indicates if the context will be used
// to modify the Raster object. We can notify such changes ahead since // to change the Raster object. We can notify such changes ahead since
// they are only used afterwards for redrawing. // they are only used afterwards for redrawing.
if (modify) { if (_change) {
// Also set _image to null since the Raster stops representing it. // Also set _image to null since the Raster stops representing it.
// NOTE: This should theoretically be in our own _changed() handler // NOTE: This should theoretically be in our own _changed() handler
// for ChangeFlag.PIXELS, but since it's only happening in one place // for ChangeFlag.PIXELS, but since it's only happening in one place
@ -685,7 +685,7 @@ var Raster = Item.extend(/** @lends Raster# */{
*/ */
clear: function() { clear: function() {
var size = this._size; var size = this._size;
this.getContext().clearRect(0, 0, size.width + 1, size.height + 1); this.getContext(true).clearRect(0, 0, size.width + 1, size.height + 1);
}, },
// DOCS: document Raster#createImageData // DOCS: document Raster#createImageData