Added color histogram, flip, resize and rotate actions + a few changes to core

actions/resize.js

@@ -0,0 +1,33 @@
+/*
+ * Pixastic Lib - Resize - v0.1.0
+ * Copyright (c) 2009 Jacob Seidelin, jseidelin@nihilogic.dk, http://blog.nihilogic.dk/
+ * License: [http://www.pixastic.com/lib/license.txt]
+ */
+
+Pixastic.Actions.resize = {
+	process : function(params) {
+		if (Pixastic.Client.hasCanvas()) {
+			var width = params.options.width;
+			var height = params.options.height;
+			var canvas = params.canvas;
+
+			var copy = document.createElement("canvas");
+			copy.width = width;
+			copy.height = height;
+			copy.getContext("2d").drawImage(canvas,0,0,width,height);
+
+			canvas.width = width;
+			canvas.height = height;
+
+			canvas.getContext("2d").drawImage(copy,0,0);
+
+			params.useData = false;
+			return true;
+		}
+	},
+	checkSupport : function() {
+		return Pixastic.Client.hasCanvas();
+	}
+}
+
+

actions/rotate.js

@@ -0,0 +1,48 @@
+/*
+ * Pixastic Lib - Rotate - v0.1.0
+ * Copyright (c) 2009 Jacob Seidelin, jseidelin@nihilogic.dk, http://blog.nihilogic.dk/
+ * License: [http://www.pixastic.com/lib/license.txt]
+ */
+
+Pixastic.Actions.rotate = {
+	process : function(params) {
+		if (Pixastic.Client.hasCanvas()) {
+			var canvas = params.canvas;
+
+			var width = params.width;
+			var height = params.height;
+
+			var copy = document.createElement("canvas");
+			copy.width = width;
+			copy.height = height;
+			copy.getContext("2d").drawImage(canvas,0,0,width,height);
+
+			var angle = parseFloat(params.options.angle) * Math.PI / 180;
+
+			var diag = Math.sqrt(width*width + height*height);
+
+			var diagAngle = Math.atan2(height, width);
+
+			if (angle < 0) diagAngle = -diagAngle;
+
+			var newHeight = Math.abs(Math.sin(diagAngle + angle) * diag);
+			var newWidth = Math.abs(Math.cos(-diagAngle + angle) * diag);
+
+			canvas.width = newWidth;
+			canvas.height = newHeight;
+
+			var ctx = canvas.getContext("2d");
+			ctx.translate(newWidth/2, newHeight/2);
+			ctx.rotate(angle);
+			ctx.drawImage(copy,-width/2,-height/2);
+
+			params.useData = false;
+			return true;
+		}
+	},
+	checkSupport : function() {
+		return Pixastic.Client.hasCanvas();
+	}
+}
+
+

license.txt

@@ -0,0 +1,21 @@
+The MIT License
+
+Copyright (c) 2008-2009 Jacob Seidelin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.