From d0c2c5dd1d067c832c7fcd1883f737132956adc3 Mon Sep 17 00:00:00 2001
From: Jonathan Puckey <me@jonathanpuckey.com>
Date: Mon, 21 Feb 2011 03:52:28 +0100
Subject: [PATCH] Add todo about speeding up canvas clearing.

---
 src/document/Doc.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/document/Doc.js b/src/document/Doc.js
index e78e04f9..8b5136da 100644
--- a/src/document/Doc.js
+++ b/src/document/Doc.js
@@ -29,6 +29,8 @@ Doc = Base.extend({
 
 	redraw: function() {
 		if (this.canvas) {
+			// TODO: clearing the canvas by setting
+			// this.canvas.width = this.canvas.width might be faster..
 			this.ctx.clearRect(0, 0, this.size.width + 1, this.size.height);
 			for (var i = 0, l = this.layers.length; i < l; i++) {
 				this.layers[i].draw(this.ctx);