first commit

modules/ph_simpleblog/assets/phpthumb/ThumbLib.inc.php

@@ -0,0 +1,146 @@
+<?php
+/**
+ * PhpThumb Library Definition File
+ * 
+ * This file contains the definitions for the PhpThumbFactory class.
+ * It also includes the other required base class files.
+ * 
+ * If you've got some auto-loading magic going on elsewhere in your code, feel free to
+ * remove the include_once statements at the beginning of this file... just make sure that
+ * these files get included one way or another in your code.
+ * 
+ * PHP Version 5 with GD 2.0+
+ * PhpThumb : PHP Thumb Library <http://phpthumb.gxdlabs.com>
+ * Copyright (c) 2009, Ian Selby/Gen X Design
+ * 
+ * Author(s): Ian Selby <ian@gen-x-design.com>
+ * 
+ * Licensed under the MIT License
+ * Redistributions of files must retain the above copyright notice.
+ * 
+ * @author Ian Selby <ian@gen-x-design.com>
+ * @copyright Copyright (c) 2009 Gen X Design
+ * @link http://phpthumb.gxdlabs.com
+ * @license http://www.opensource.org/licenses/mit-license.php The MIT License
+ * @version 3.0
+ * @package PhpThumb
+ * @filesource
+ */
+
+// define some useful constants
+define('THUMBLIB_BASE_PATH', dirname(__FILE__));
+define('THUMBLIB_PLUGIN_PATH', THUMBLIB_BASE_PATH . '/thumb_plugins/');
+define('DEFAULT_THUMBLIB_IMPLEMENTATION', 'gd');
+
+/**
+ * Include the PhpThumb Class
+ */
+require_once THUMBLIB_BASE_PATH . '/PhpThumb.inc.php';
+/**
+ * Include the ThumbBase Class
+ */
+require_once THUMBLIB_BASE_PATH . '/ThumbBase.inc.php';
+/**
+ * Include the GdThumb Class
+ */
+require_once THUMBLIB_BASE_PATH . '/GdThumb.inc.php';
+
+/**
+ * PhpThumbFactory Object
+ * 
+ * This class is responsible for making sure everything is set up and initialized properly,
+ * and returning the appropriate thumbnail class instance.  It is the only recommended way 
+ * of using this library, and if you try and circumvent it, the sky will fall on your head :)
+ * 
+ * Basic use is easy enough.  First, make sure all the settings meet your needs and environment...
+ * these are the static variables defined at the beginning of the class.
+ * 
+ * Once that's all set, usage is pretty easy.  You can simply do something like:
+ * <code>$thumb = PhpThumbFactory::create('/path/to/file.png');</code>
+ * 
+ * Refer to the documentation for the create function for more information
+ * 
+ * @package PhpThumb
+ * @subpackage Core
+ */
+class PhpThumbFactory
+{
+	/**
+	 * Which implemenation of the class should be used by default
+	 * 
+	 * Currently, valid options are:
+	 *  - imagick
+	 *  - gd
+	 *  
+	 * These are defined in the implementation map variable, inside the create function
+	 * 
+	 * @var string
+	 */
+	public static $defaultImplemenation = DEFAULT_THUMBLIB_IMPLEMENTATION;
+	/**
+	 * Where the plugins can be loaded from
+	 * 
+	 * Note, it's important that this path is properly defined.  It is very likely that you'll 
+	 * have to change this, as the assumption here is based on a relative path.
+	 * 
+	 * @var string
+	 */
+	public static $pluginPath = THUMBLIB_PLUGIN_PATH;
+	
+	/**
+	 * Factory Function
+	 * 
+	 * This function returns the correct thumbnail object, augmented with any appropriate plugins.  
+	 * It does so by doing the following:
+	 *  - Getting an instance of PhpThumb
+	 *  - Loading plugins
+	 *  - Validating the default implemenation
+	 *  - Returning the desired default implementation if possible
+	 *  - Returning the GD implemenation if the default isn't available
+	 *  - Throwing an exception if no required libraries are present
+	 * 
+	 * @return GdThumb
+	 * @uses PhpThumb
+	 * @param string $filename The path and file to load [optional]
+	 */
+	public static function create ($filename = null, $options = array(), $isDataStream = false)
+	{
+		// map our implementation to their class names
+		$implementationMap = array
+		(
+			'imagick'	=> 'ImagickThumb',
+			'gd' 		=> 'GdThumb'
+		);
+		
+		// grab an instance of PhpThumb
+		$pt = PhpThumb::getInstance();
+		// load the plugins
+		$pt->loadPlugins(self::$pluginPath);
+		
+		$toReturn = null;
+		$implementation = self::$defaultImplemenation;
+		
+		// attempt to load the default implementation
+		if ($pt->isValidImplementation(self::$defaultImplemenation))
+		{
+			$imp = $implementationMap[self::$defaultImplemenation];
+			$toReturn = new $imp($filename, $options, $isDataStream);
+		}
+		// load the gd implementation if default failed
+		else if ($pt->isValidImplementation('gd'))
+		{
+			$imp = $implementationMap['gd'];
+			$implementation = 'gd';
+			$toReturn = new $imp($filename, $options, $isDataStream);
+		}
+		// throw an exception if we can't load
+		else
+		{
+			throw new Exception('You must have either the GD or iMagick extension loaded to use this library');
+		}
+		
+		$registry = $pt->getPluginRegistry($implementation);
+		$toReturn->importPlugins($registry);
+		return $toReturn;
+	}
+}