Sakurai/pdf.js
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Clear the main canvas right before the next rendering begins. Keeps the canvas from beeing blank for a few ms

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This commit is contained in:
Julian Viereck 2011-06-23 22:24:41 +02:00
parent 171ab51c56
commit d856e7c572
1 changed files with 9 additions and 8 deletions
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17
worker_client.js
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@ -202,10 +202,17 @@ function WorkerPDFDoc(canvas) {
// There might be fonts that need to get loaded. Shedule the
// rendering at the end of the event queue ensures this.
setTimeout(function() {
if (id == 0) tic();
if (id == 0) {
tic();
var ctx = this.ctx;
ctx.save();
ctx.fillStyle = "rgb(255, 255, 255)";
ctx.fillRect(0, 0, canvas.width, canvas.height);
ctx.restore();
}
renderProxyCanvas(canvasList[id], cmdQueue);
if (id == 0) toc("canvas rendering")
}, 0);
}, 0, this);
}
}
@ -239,12 +246,6 @@ WorkerPDFDoc.prototype.open = function(url, callback) {
}
WorkerPDFDoc.prototype.showPage = function(numPage) {
var ctx = this.ctx;
ctx.save();
ctx.fillStyle = "rgb(255, 255, 255)";
ctx.fillRect(0, 0, canvas.width, canvas.height);
ctx.restore();
this.numPage = parseInt(numPage);
this.worker.postMessage(numPage);
if (this.onChangePage) {