scratchfoundation/paper.js
1
0
Fork 0
mirror of https://github.com/scratchfoundation/paper.js.git synced 2025-01-20 22:39:50 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

Remove dirty rectangle test code for now.

Browse source
This commit is contained in:
Jürg Lehni 2011-05-15 20:09:50 +01:00
parent ef0347a6bc
commit 217a2e6ecb
1 changed files with 6 additions and 35 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

41
src/document/Document.js
View file

@ -175,42 +175,13 @@ var Document = this.Document = Base.extend({
if (this.stats)
this.stats.update();
var ctx = this.context;
// Initial tests conclude that clearing the canvas using clearRect
// is always faster than setting canvas.width = canvas.width
// http://jsperf.com/clearrect-vs-setting-width/7
ctx.clearRect(0, 0, this.size.width + 1, this.size.height + 1);
ctx.save();
// TODO: Remove dirty rectangle test code once it's actually
// implemented.
var testDirtyRects = false;
if (testDirtyRects) {
var left = this.size.width / 8,
top = this.size.height / 8;
function clear(rect) {
ctx.clearRect(rect.x, rect.y, rect.width, rect.height);
if (true) {
ctx.moveTo(rect.x, rect.y);
ctx.lineTo(rect.x + rect.width, rect.y);
ctx.lineTo(rect.x + rect.width, rect.y + rect.height);
ctx.lineTo(rect.x, rect.y + rect.height);
}
}
ctx.beginPath();
clear(Rectangle.create(left, top, 2 * left, 2 * top));
clear(Rectangle.create(3 * left, 3 * top, 2 * left, 2 * top));
// clear(Rectangle.create(left, top, 4 * left, 4 * top));
ctx.closePath();
ctx.clip();
} else {
// Initial tests conclude that clearing the canvas using clearRect
// is always faster than setting canvas.width = canvas.width
// http://jsperf.com/clearrect-vs-setting-width/7
ctx.clearRect(0, 0, this.size.width + 1, this.size.height + 1);
}
var param = { offset: new Point(0, 0) };
for (var i = 0, l = this.layers.length; i < l; i++)
Item.draw(this.layers[i], ctx, param);