From 5d680b198768073a7c22800cbbbdd459604210bf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrg=20Lehni?= <juerg@scratchdisk.com>
Date: Wed, 2 Mar 2011 16:07:44 +0000
Subject: [PATCH] Reformat code and add comment about clearRect dimensions.

---
 src/util/CanvasProvider.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/util/CanvasProvider.js b/src/util/CanvasProvider.js
index 37e0e655..2c0730b6 100644
--- a/src/util/CanvasProvider.js
+++ b/src/util/CanvasProvider.js
@@ -10,11 +10,13 @@ CanvasProvider = {
 			var canvas = this.canvases.pop();
 			// If they are not the same size, we don't need to clear them
 			// using clearRect and visa versa.
-			if ((canvas.width != size.width) ||  (canvas.height != size.height)) {
+			if ((canvas.width != size.width)
+					|| (canvas.height != size.height)) {
 				canvas.width = size.width;
 				canvas.height = size.height;
 			} else {
 				var context = canvas.getContext('2d');
+				// +1 is needed on some browsers to really clear the borders
 				context.clearRect(0, 0, size.width + 1, size.height + 1);
 			}
 			return canvas;