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Normalize blend mode names.

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This commit is contained in:
Brendan Dahl 2017-04-10 11:58:02 -07:00
parent c5199d0814
commit 4969b2ad97
5 changed files with 134 additions and 17 deletions
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19
src/display/canvas.js
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@ -950,20 +950,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
this.ctx.globalAlpha = state[1];
break;
case 'BM':
if (value && value.name && (value.name !== 'Normal')) {
var mode = value.name.replace(/([A-Z])/g,
function(c) {
return '-' + c.toLowerCase();
}
).substring(1);
this.ctx.globalCompositeOperation = mode;
if (this.ctx.globalCompositeOperation !== mode) {
warn('globalCompositeOperation "' + mode +
'" is not supported');
}
} else {
this.ctx.globalCompositeOperation = 'source-over';
}
this.ctx.globalCompositeOperation = value;
break;
case 'SMask':
if (this.current.activeSMask) {
@ -1010,7 +997,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
copyCtxState(currentCtx, groupCtx);
this.ctx = groupCtx;
this.setGState([
['BM', 'Normal'],
['BM', 'source-over'],
['ca', 1],
['CA', 1]
]);
@ -1885,7 +1872,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
copyCtxState(currentCtx, groupCtx);
this.ctx = groupCtx;
this.setGState([
['BM', 'Normal'],
['BM', 'source-over'],
['ca', 1],
['CA', 1]
]);