From ea91efe810a0a86ed27e13e94226e1da7597d1ba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrg=20Lehni?= <juerg@scratchdisk.com>
Date: Thu, 11 Apr 2019 19:38:12 +0200
Subject: [PATCH] Add Raster.clear() to clear associated canvas

---
 src/item/Raster.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/item/Raster.js b/src/item/Raster.js
index 856e0ee6..b150504d 100644
--- a/src/item/Raster.js
+++ b/src/item/Raster.js
@@ -680,6 +680,14 @@ var Raster = Item.extend(/** @lends Raster# */{
         ctx.putImageData(imageData, point.x, point.y);
     },
 
+    /**
+     * Clears the image, if it is backed by a canvas.
+     */
+    clear: function() {
+        var size = this._size;
+        this.getContext().clearRect(0, 0, size.width + 1, size.height + 1);
+    },
+
     // DOCS: document Raster#createImageData
     /**
      * {@grouptitle Image Data}