From 6fcdb86e1c7ca29420b6bc3ffb3e0abc9b696703 Mon Sep 17 00:00:00 2001
From: Jonathan Puckey <me@jonathanpuckey.com>
Date: Mon, 21 Feb 2011 03:17:09 +0100
Subject: [PATCH] Implement CanvasProvider that provides reusable canvas
 elements.

---
 src/util/CanvasProvider.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 src/util/CanvasProvider.js

diff --git a/src/util/CanvasProvider.js b/src/util/CanvasProvider.js
new file mode 100644
index 00000000..bcced6d7
--- /dev/null
+++ b/src/util/CanvasProvider.js
@@ -0,0 +1,16 @@
+CanvasProvider = {
+	canvases: [],
+	getCanvas: function(width, height) {
+		var canvas = this.canvases.length
+			? this.canvases.pop()
+			: document.createElement('canvas');
+		var cleared;
+		canvas.width = width;
+		canvas.height = height;
+		return canvas;
+	},
+
+	returnCanvas: function(canvas) {
+		this.canvases.push(canvas);
+	}
+};