first commit of free version

admin/compiler/joomla_3/wideimage/OperationFactory.php

@@ -0,0 +1,57 @@
+<?php
+	/**
+ * @author Gasper Kozak
+ * @copyright 2007-2011
+
+    This file is part of WideImage.
+		
+    WideImage is free software; you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.
+		
+    WideImage is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+		
+    You should have received a copy of the GNU Lesser General Public License
+    along with WideImage; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+	* @package Internals
+  **/
+	
+	/**
+	 * @package Exceptions
+	 */
+	class WideImage_UnknownImageOperationException extends WideImage_Exception {}
+	
+	/**
+	 * Operation factory
+	 * 
+	 * @package Internals
+	 **/
+	class WideImage_OperationFactory
+	{
+		static protected $cache = array();
+		
+		static function get($operationName)
+		{
+			$lcname = strtolower($operationName);
+			if (!isset(self::$cache[$lcname]))
+			{
+				$opClassName = "WideImage_Operation_" . ucfirst($operationName);
+				if (!class_exists($opClassName, false))
+				{
+					$fileName = WideImage::path() . 'Operation/' . ucfirst($operationName) . '.php';
+					if (file_exists($fileName))
+						require_once $fileName;
+					elseif (!class_exists($opClassName))
+						throw new WideImage_UnknownImageOperationException("Can't load '{$operationName}' operation.");
+				}
+				self::$cache[$lcname] = new $opClassName();
+			}
+			return self::$cache[$lcname];
+		}
+	}