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index.html��0000604��00000000054�15173201255�0006535 0��ustar�00��<html><body bgcolor="#FFFFFF"></body></html>��ThumbBase.inc.php��0000604��00000016740�15173201255�0007704 0��ustar�00��<?php /** * @title Responsive Slider for Articles * @version 3.x * @copyright Copyright (C) 2011-2014 Minitek, All rights reserved. * @license GNU General Public License version 3 or later. * @author url http://www.minitek.gr/ * @author email info@minitek.gr * @developers Minitek.gr / /* * PhpThumb Base Class Definition File * * This file contains the definition for the ThumbBase object * * 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 / /* * ThumbBase Class Definition * * This is the base class that all implementations must extend. It contains the * core variables and functionality common to all implementations, as well as the functions that * allow plugins to augment those classes. * * @package PhpThumb * @subpackage Core / // no direct access defined( '_JEXEC' ) or die( 'Restricted access' ); abstract class ThumbBase { /* * All imported objects * * An array of imported plugin objects * * @var array / protected $imported; /* * All imported object functions * * An array of all methods added to this class by imported plugin objects * * @var array / protected $importedFunctions; /* * The last error message raised * * @var string / protected $errorMessage; /* * Whether or not the current instance has any errors * * @var bool / protected $hasError; /* * The name of the file we're manipulating * * This must include the path to the file (absolute paths recommended) * * @var string / protected $fileName; /* * What the file format is (mime-type) * * @var string / protected $format; /* * Whether or not the image is hosted remotely * * @var bool / protected $remoteImage; /* * Whether or not the current image is an actual file, or the raw file data * * By "raw file data" it's meant that we're actually passing the result of something * like file_get_contents() or perhaps from a database blob * * @var bool / protected $isDataStream; /* * Class constructor * * @return ThumbBase / public function __construct ($fileName, $isDataStream = false) { $this->imported = array(); $this->importedFunctions = array(); $this->errorMessage = null; $this->hasError = false; $this->fileName = $fileName; $this->remoteImage = false; $this->isDataStream = $isDataStream; $this->fileExistsAndReadable(); } /* * Imports plugins in $registry to the class * * @param array $registry / public function importPlugins ($registry) { foreach ($registry as $plugin => $meta) { $this->imports($plugin); } } /* * Imports a plugin * * This is where all the plugins magic happens! This function "loads" the plugin functions, making them available as * methods on the class. * * @param string $object The name of the object to import / "load" / protected function imports ($object) { // the new object to import $newImport = new $object(); // the name of the new object (class name) $importName = get_class($newImport); // the new functions to import $importFunctions = get_class_methods($newImport); // add the object to the registry array_push($this->imported, array($importName, $newImport)); // add the methods to the registry foreach ($importFunctions as $key => $functionName) { $this->importedFunctions[$functionName] = &$newImport; } } /* * Checks to see if $this->fileName exists and is readable * / protected function fileExistsAndReadable () { if ($this->isDataStream === true) { return; } if (stristr($this->fileName, 'http://') !== false) { $this->remoteImage = true; return; } if (!file_exists($this->fileName)) { $this->triggerError('Image file not found: ' . $this->fileName); } elseif (!is_readable($this->fileName)) { $this->triggerError('Image file not readable: ' . $this->fileName); } } /* * Sets $this->errorMessage to $errorMessage and throws an exception * * Also sets $this->hasError to true, so even if the exceptions are caught, we don't * attempt to proceed with any other functions * * @param string $errorMessage / protected function triggerError ($errorMessage) { $this->hasError = true; $this->errorMessage = $errorMessage; throw new Exception ($errorMessage); } /* * Calls plugin / imported functions * * This is also where a fair amount of plugins magaic happens. This magic method is called whenever an "undefined" class * method is called in code, and we use that to call an imported function. * * You should NEVER EVER EVER invoke this function manually. The universe will implode if you do... seriously ;) * * @param string $method * @param array $args / public function __call ($method, $args) { if( array_key_exists($method, $this->importedFunctions)) { $args[] = $this; return call_user_func_array(array($this->importedFunctions[$method], $method), $args); } throw new BadMethodCallException ('Call to undefined method/class function: ' . $method); } /* * Returns $imported. * @see ThumbBase::$imported * @return array / public function getImported () { return $this->imported; } /* * Returns $importedFunctions. * @see ThumbBase::$importedFunctions * @return array / public function getImportedFunctions () { return $this->importedFunctions; } /* * Returns $errorMessage. * * @see ThumbBase::$errorMessage / public function getErrorMessage () { return $this->errorMessage; } /* * Sets $errorMessage. * * @param object $errorMessage * @see ThumbBase::$errorMessage / public function setErrorMessage ($errorMessage) { $this->errorMessage = $errorMessage; } /* * Returns $fileName. * * @see ThumbBase::$fileName / public function getFileName () { return $this->fileName; } /* * Sets $fileName. * * @param object $fileName * @see ThumbBase::$fileName / public function setFileName ($fileName) { $this->fileName = $fileName; } /* * Returns $format. * * @see ThumbBase::$format / public function getFormat () { return $this->format; } /* * Sets $format. * * @param object $format * @see ThumbBase::$format / public function setFormat ($format) { $this->format = $format; } /* * Returns $hasError. * * @see ThumbBase::$hasError / public function getHasError () { return $this->hasError; } /* * Sets $hasError. * * @param object $hasError * @see ThumbBase::$hasError / public function setHasError ($hasError) { $this->hasError = $hasError; } } ��ThumbLib.inc.php��0000604��00000012134�15173201255�0007531 0��ustar�00��<?php /* * @title Responsive Slider for Articles * @version 3.x * @copyright Copyright (C) 2011-2014 Minitek, All rights reserved. * @license GNU General Public License version 3 or later. * @author url http://www.minitek.gr/ * @author email info@minitek.gr * @developers Minitek.gr / /* * 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 / // no direct access defined( '_JEXEC' ) or die( 'Restricted access' ); // 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; } }��README.md��0000604��00000001203�15173201255�0006014 0��ustar�00��# PHP Thumb PHP Thumb is a light-weight image manipulation library aimed at thumbnail generation. It features the ability to resize by width, height, and percentage, create custom crops, or square crops from the center, and rotate the image. You can also easily add custom functionality to the library through plugins. It also features the ability to perform multiple manipulations per instance (also known as chaining), without the need to save and re-initialize the class with every manipulation. More information and documentation is available at the project's homepage: [http://phpthumb.gxdlabs.com](http://phpthumb.gxdlabs.com) ��PhpThumb.inc.php��0000604��00000015477�15173201255�0007567 0��ustar�00��<?php /* * @title Responsive Slider for Articles * @version 3.x * @copyright Copyright (C) 2011-2014 Minitek, All rights reserved. * @license GNU General Public License version 3 or later. * @author url http://www.minitek.gr/ * @author email info@minitek.gr * @developers Minitek.gr / /* * PhpThumb Library Definition File * * This file contains the definitions for the PhpThumb class. * * 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 / /* * PhpThumb Object * * This singleton object is essentially a function library that helps with core validation * and loading of the core classes and plugins. There isn't really any need to access it directly, * unless you're developing a plugin and need to take advantage of any of the functionality contained * within. * * If you're not familiar with singleton patterns, here's how you get an instance of this class (since you * can't create one via the new keyword): * <code>$pt = PhpThumb::getInstance();</code> * * It's that simple! Outside of that, there's no need to modify anything within this class, unless you're doing * some crazy customization... then knock yourself out! :) * * @package PhpThumb * @subpackage Core / // no direct access defined( '_JEXEC' ) or die( 'Restricted access' ); class PhpThumb { /* * Instance of self * * @var object PhpThumb / protected static $_instance; /* * The plugin registry * * This is where all plugins to be loaded are stored. Data about the plugin is * provided, and currently consists of: * - loaded: true/false * - implementation: gd/imagick/both * * @var array / protected $_registry; /* * What implementations are available * * This stores what implementations are available based on the loaded * extensions in PHP, NOT whether or not the class files are present. * * @var array / protected $_implementations; /* * Returns an instance of self * * This is the usual singleton function that returns / instantiates the object * * @return PhpThumb / public static function getInstance () { if(!(self::$_instance instanceof self)) { self::$_instance = new self(); } return self::$_instance; } /* * Class constructor * * Initializes all the variables, and does some preliminary validation / checking of stuff * / private function __construct () { $this->_registry = array(); $this->_implementations = array('gd' => false, 'imagick' => false); $this->getImplementations(); } /* * Finds out what implementations are available * * This function loops over $this->_implementations and validates that the required extensions are loaded. * * I had planned on attempting to load them dynamically via dl(), but that would provide more overhead than I * was comfortable with (and would probably fail 99% of the time anyway) * / private function getImplementations () { foreach($this->_implementations as $extension => $loaded) { if($loaded) { continue; } if(extension_loaded($extension)) { $this->_implementations[$extension] = true; } } } /* * Returns whether or not $implementation is valid (available) * * If 'all' is passed, true is only returned if ALL implementations are available. * * You can also pass 'n/a', which always returns true * * @return bool * @param string $implementation / public function isValidImplementation ($implementation) { if ($implementation == 'n/a') { return true; } if ($implementation == 'all') { foreach ($this->_implementations as $imp => $value) { if ($value == false) { return false; } } return true; } if (array_key_exists($implementation, $this->_implementations)) { return $this->_implementations[$implementation]; } return false; } /* * Registers a plugin in the registry * * Adds a plugin to the registry if it isn't already loaded, and if the provided * implementation is valid. Note that you can pass the following special keywords * for implementation: * - all - Requires that all implementations be available * - n/a - Doesn't require any implementation * * When a plugin is added to the registry, it's added as a key on $this->_registry with the value * being an array containing the following keys: * - loaded - whether or not the plugin has been "loaded" into the core class * - implementation - what implementation this plugin is valid for * * @return bool * @param string $pluginName * @param string $implementation / public function registerPlugin ($pluginName, $implementation) { if (!array_key_exists($pluginName, $this->_registry) && $this->isValidImplementation($implementation)) { $this->_registry[$pluginName] = array('loaded' => false, 'implementation' => $implementation); return true; } return false; } /* * Loads all the plugins in $pluginPath * * All this function does is include all files inside the $pluginPath directory. The plugins themselves * will not be added to the registry unless you've properly added the code to do so inside your plugin file. * * @param string $pluginPath / public function loadPlugins ($pluginPath) { // strip the trailing slash if present if (substr($pluginPath, strlen($pluginPath) - 1, 1) == '/') { $pluginPath = substr($pluginPath, 0, strlen($pluginPath) - 1); } if ($handle = opendir($pluginPath)) { while (false !== ($file = readdir($handle))) { if ($file == '.' \|\| $file == '..' \|\| $file == '.svn') { continue; } include_once($pluginPath . '/' . $file); } } } /* * Returns the plugin registry for the supplied implementation * * @return array * @param string $implementation / public function getPluginRegistry ($implementation) { $returnArray = array(); foreach ($this->_registry as $plugin => $meta) { if ($meta['implementation'] == 'n/a' \|\| $meta['implementation'] == $implementation) { $returnArray[$plugin] = $meta; } } return $returnArray; } } ��thumb_plugins/gd_reflection.inc.php��0000604��00000013532�15173201255�0013512 0��ustar�00��<?php /* * @title Responsive Slider for Articles * @version 3.x * @copyright Copyright (C) 2011-2014 Minitek, All rights reserved. * @license GNU General Public License version 3 or later. * @author url http://www.minitek.gr/ * @author email info@minitek.gr * @developers Minitek.gr / /* * GD Reflection Lib Plugin Definition File * * This file contains the plugin definition for the GD Reflection Lib for PHP Thumb * * 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 / /* * GD Reflection Lib Plugin * * This plugin allows you to create those fun Apple(tm)-style reflections in your images * * @package PhpThumb * @subpackage Plugins / // no direct access defined( '_JEXEC' ) or die( 'Restricted access' ); class GdReflectionLib { /* * Instance of GdThumb passed to this class * * @var GdThumb / protected $parentInstance; protected $currentDimensions; protected $workingImage; protected $newImage; protected $options; public function createReflection ($percent, $reflection, $white, $border, $borderColor, &$that) { // bring stuff from the parent class into this class... $this->parentInstance = $that; $this->currentDimensions = $this->parentInstance->getCurrentDimensions(); $this->workingImage = $this->parentInstance->getWorkingImage(); $this->newImage = $this->parentInstance->getOldImage(); $this->options = $this->parentInstance->getOptions(); $width = $this->currentDimensions['width']; $height = $this->currentDimensions['height']; $reflectionHeight = intval($height ($reflection / 100)); $newHeight = $height + $reflectionHeight; $reflectedPart = $height * ($percent / 100); $this->workingImage = imagecreatetruecolor($width, $newHeight); imagealphablending($this->workingImage, true); $colorToPaint = imagecolorallocatealpha($this->workingImage,255,255,255,0); imagefilledrectangle($this->workingImage,0,0,$width,$newHeight,$colorToPaint); imagecopyresampled ( $this->workingImage, $this->newImage, 0, 0, 0, $reflectedPart, $width, $reflectionHeight, $width, ($height - $reflectedPart) ); $this->imageFlipVertical(); imagecopy($this->workingImage, $this->newImage, 0, 0, 0, 0, $width, $height); imagealphablending($this->workingImage, true); for ($i = 0; $i < $reflectionHeight; $i++) { $colorToPaint = imagecolorallocatealpha($this->workingImage, 255, 255, 255, ($i/$reflectionHeight-1+1)$white); imagefilledrectangle($this->workingImage, 0, $height + $i, $width, $height + $i, $colorToPaint); } if($border == true) { $rgb = $this->hex2rgb($borderColor, false); $colorToPaint = imagecolorallocate($this->workingImage, $rgb[0], $rgb[1], $rgb[2]); imageline($this->workingImage, 0, 0, $width, 0, $colorToPaint); //top line imageline($this->workingImage, 0, $height, $width, $height, $colorToPaint); //bottom line imageline($this->workingImage, 0, 0, 0, $height, $colorToPaint); //left line imageline($this->workingImage, $width-1, 0, $width-1, $height, $colorToPaint); //right line } if ($this->parentInstance->getFormat() == 'PNG') { $colorTransparent = imagecolorallocatealpha ( $this->workingImage, $this->options['alphaMaskColor'][0], $this->options['alphaMaskColor'][1], $this->options['alphaMaskColor'][2], 0 ); imagefill($this->workingImage, 0, 0, $colorTransparent); imagesavealpha($this->workingImage, true); } $this->parentInstance->setOldImage($this->workingImage); $this->currentDimensions['width'] = $width; $this->currentDimensions['height'] = $newHeight; $this->parentInstance->setCurrentDimensions($this->currentDimensions); return $that; } /** * Flips the image vertically * / protected function imageFlipVertical () { $x_i = imagesx($this->workingImage); $y_i = imagesy($this->workingImage); for ($x = 0; $x < $x_i; $x++) { for ($y = 0; $y < $y_i; $y++) { imagecopy($this->workingImage, $this->workingImage, $x, $y_i - $y - 1, $x, $y, 1, 1); } } } /* * Converts a hex color to rgb tuples * * @return mixed * @param string $hex * @param bool $asString / protected function hex2rgb ($hex, $asString = false) { // strip off any leading # if (0 === strpos($hex, '#')) { $hex = substr($hex, 1); } elseif (0 === strpos($hex, '&H')) { $hex = substr($hex, 2); } // break into hex 3-tuple $cutpoint = ceil(strlen($hex) / 2)-1; $rgb = explode(':', wordwrap($hex, $cutpoint, ':', $cutpoint), 3); // convert each tuple to decimal $rgb[0] = (isset($rgb[0]) ? hexdec($rgb[0]) : 0); $rgb[1] = (isset($rgb[1]) ? hexdec($rgb[1]) : 0); $rgb[2] = (isset($rgb[2]) ? hexdec($rgb[2]) : 0); return ($asString ? "{$rgb[0]} {$rgb[1]} {$rgb[2]}" : $rgb); } } $pt = PhpThumb::getInstance(); $pt->registerPlugin('GdReflectionLib', 'gd');��thumb_plugins/index.html��0000604��00000000054�15173201255�0011415 0��ustar�00��<html><body bgcolor="#FFFFFF"></body></html>��GdThumb.inc.php��0000604��00000072502�15173201255�0007362 0��ustar�00��<?php /* * @title Responsive Slider for Articles * @version 3.x * @copyright Copyright (C) 2011-2014 Minitek, All rights reserved. * @license GNU General Public License version 3 or later. * @author url http://www.minitek.gr/ * @author email info@minitek.gr * @developers Minitek.gr / /* * PhpThumb GD Thumb Class Definition File * * This file contains the definition for the GdThumb object * * 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 / /* * GdThumb Class Definition * * This is the GD Implementation of the PHP Thumb library. * * @package PhpThumb * @subpackage Core / // no direct access defined( '_JEXEC' ) or die( 'Restricted access' ); class GdThumb extends ThumbBase { /* * The prior image (before manipulation) * * @var resource / protected $oldImage; /* * The working image (used during manipulation) * * @var resource / protected $workingImage; /* * The current dimensions of the image * * @var array / protected $currentDimensions; /* * The new, calculated dimensions of the image * * @var array / protected $newDimensions; /* * The options for this class * * This array contains various options that determine the behavior in * various functions throughout the class. Functions note which specific * option key / values are used in their documentation * * @var array / protected $options; /* * The maximum width an image can be after resizing (in pixels) * * @var int / protected $maxWidth; /* * The maximum height an image can be after resizing (in pixels) * * @var int / protected $maxHeight; /* * The percentage to resize the image by * * @var int / protected $percent; /* * Class Constructor * * @return GdThumb * @param string $fileName / public function __construct ($fileName, $options = array(), $isDataStream = false) { parent::__construct($fileName, $isDataStream); $this->determineFormat(); if ($this->isDataStream === false) { $this->verifyFormatCompatiblity(); } switch ($this->format) { case 'GIF': $this->oldImage = imagecreatefromgif($this->fileName); break; case 'JPG': $this->oldImage = imagecreatefromjpeg($this->fileName); break; case 'PNG': $this->oldImage = imagecreatefrompng($this->fileName); break; case 'STRING': $this->oldImage = imagecreatefromstring($this->fileName); break; } $this->currentDimensions = array ( 'width' => imagesx($this->oldImage), 'height' => imagesy($this->oldImage) ); $this->setOptions($options); // TODO: Port gatherImageMeta to a separate function that can be called to extract exif data } /* * Class Destructor * / public function __destruct () { if (is_resource($this->oldImage)) { imagedestroy($this->oldImage); } if (is_resource($this->workingImage)) { imagedestroy($this->workingImage); } } ############################## # ----- API FUNCTIONS ------ # ############################## /* * Resizes an image to be no larger than $maxWidth or $maxHeight * * If either param is set to zero, then that dimension will not be considered as a part of the resize. * Additionally, if $this->options['resizeUp'] is set to true (false by default), then this function will * also scale the image up to the maximum dimensions provided. * * @param int $maxWidth The maximum width of the image in pixels * @param int $maxHeight The maximum height of the image in pixels * @return GdThumb / public function resize ($maxWidth = 0, $maxHeight = 0) { // make sure our arguments are valid if (!is_numeric($maxWidth)) { throw new InvalidArgumentException('$maxWidth must be numeric'); } if (!is_numeric($maxHeight)) { throw new InvalidArgumentException('$maxHeight must be numeric'); } // make sure we're not exceeding our image size if we're not supposed to if ($this->options['resizeUp'] === false) { $this->maxHeight = (intval($maxHeight) > $this->currentDimensions['height']) ? $this->currentDimensions['height'] : $maxHeight; $this->maxWidth = (intval($maxWidth) > $this->currentDimensions['width']) ? $this->currentDimensions['width'] : $maxWidth; } else { $this->maxHeight = intval($maxHeight); $this->maxWidth = intval($maxWidth); } // get the new dimensions... $this->calcImageSize($this->currentDimensions['width'], $this->currentDimensions['height']); // create the working image if (function_exists('imagecreatetruecolor')) { $this->workingImage = imagecreatetruecolor($this->newDimensions['newWidth'], $this->newDimensions['newHeight']); } else { $this->workingImage = imagecreate($this->newDimensions['newWidth'], $this->newDimensions['newHeight']); } $this->preserveAlpha(); // and create the newly sized image imagecopyresampled ( $this->workingImage, $this->oldImage, 0, 0, 0, 0, $this->newDimensions['newWidth'], $this->newDimensions['newHeight'], $this->currentDimensions['width'], $this->currentDimensions['height'] ); // update all the variables and resources to be correct $this->oldImage = $this->workingImage; $this->currentDimensions['width'] = $this->newDimensions['newWidth']; $this->currentDimensions['height'] = $this->newDimensions['newHeight']; return $this; } /* * Adaptively Resizes the Image * * This function attempts to get the image to as close to the provided dimensions as possible, and then crops the * remaining overflow (from the center) to get the image to be the size specified * * @param int $maxWidth * @param int $maxHeight * @return GdThumb / public function adaptiveResize ($width, $height) { // make sure our arguments are valid if (!is_numeric($width) \|\| $width == 0) { throw new InvalidArgumentException('$width must be numeric and greater than zero'); } if (!is_numeric($height) \|\| $height == 0) { throw new InvalidArgumentException('$height must be numeric and greater than zero'); } // make sure we're not exceeding our image size if we're not supposed to if ($this->options['resizeUp'] === false) { $this->maxHeight = (intval($height) > $this->currentDimensions['height']) ? $this->currentDimensions['height'] : $height; $this->maxWidth = (intval($width) > $this->currentDimensions['width']) ? $this->currentDimensions['width'] : $width; } else { $this->maxHeight = intval($height); $this->maxWidth = intval($width); } $this->calcImageSizeStrict($this->currentDimensions['width'], $this->currentDimensions['height']); // resize the image to be close to our desired dimensions $this->resize($this->newDimensions['newWidth'], $this->newDimensions['newHeight']); // reset the max dimensions... if ($this->options['resizeUp'] === false) { $this->maxHeight = (intval($height) > $this->currentDimensions['height']) ? $this->currentDimensions['height'] : $height; $this->maxWidth = (intval($width) > $this->currentDimensions['width']) ? $this->currentDimensions['width'] : $width; } else { $this->maxHeight = intval($height); $this->maxWidth = intval($width); } // create the working image if (function_exists('imagecreatetruecolor')) { $this->workingImage = imagecreatetruecolor($this->maxWidth, $this->maxHeight); } else { $this->workingImage = imagecreate($this->maxWidth, $this->maxHeight); } $this->preserveAlpha(); $cropWidth = $this->maxWidth; $cropHeight = $this->maxHeight; $cropX = 0; $cropY = 0; // now, figure out how to crop the rest of the image... if ($this->currentDimensions['width'] > $this->maxWidth) { $cropX = intval(($this->currentDimensions['width'] - $this->maxWidth) / 2); } elseif ($this->currentDimensions['height'] > $this->maxHeight) { $cropY = intval(($this->currentDimensions['height'] - $this->maxHeight) / 2); } imagecopyresampled ( $this->workingImage, $this->oldImage, 0, 0, $cropX, $cropY, $cropWidth, $cropHeight, $cropWidth, $cropHeight ); // update all the variables and resources to be correct $this->oldImage = $this->workingImage; $this->currentDimensions['width'] = $this->maxWidth; $this->currentDimensions['height'] = $this->maxHeight; return $this; } /* * Resizes an image by a given percent uniformly * * Percentage should be whole number representation (i.e. 1-100) * * @param int $percent * @return GdThumb / public function resizePercent ($percent = 0) { if (!is_numeric($percent)) { throw new InvalidArgumentException ('$percent must be numeric'); } $this->percent = intval($percent); $this->calcImageSizePercent($this->currentDimensions['width'], $this->currentDimensions['height']); if (function_exists('imagecreatetruecolor')) { $this->workingImage = imagecreatetruecolor($this->newDimensions['newWidth'], $this->newDimensions['newHeight']); } else { $this->workingImage = imagecreate($this->newDimensions['newWidth'], $this->newDimensions['newHeight']); } $this->preserveAlpha(); ImageCopyResampled( $this->workingImage, $this->oldImage, 0, 0, 0, 0, $this->newDimensions['newWidth'], $this->newDimensions['newHeight'], $this->currentDimensions['width'], $this->currentDimensions['height'] ); $this->oldImage = $this->workingImage; $this->currentDimensions['width'] = $this->newDimensions['newWidth']; $this->currentDimensions['height'] = $this->newDimensions['newHeight']; return $this; } /* * Crops an image from the center with provided dimensions * * If no height is given, the width will be used as a height, thus creating a square crop * * @param int $cropWidth * @param int $cropHeight * @return GdThumb / public function cropFromCenter ($cropWidth, $cropHeight = null) { if (!is_numeric($cropWidth)) { throw new InvalidArgumentException('$cropWidth must be numeric'); } if ($cropHeight !== null && !is_numeric($cropHeight)) { throw new InvalidArgumentException('$cropHeight must be numeric'); } if ($cropHeight === null) { $cropHeight = $cropWidth; } $cropWidth = ($this->currentDimensions['width'] < $cropWidth) ? $this->currentDimensions['width'] : $cropWidth; $cropHeight = ($this->currentDimensions['height'] < $cropHeight) ? $this->currentDimensions['height'] : $cropHeight; $cropX = intval(($this->currentDimensions['width'] - $cropWidth) / 2); $cropY = intval(($this->currentDimensions['height'] - $cropHeight) / 2); $this->crop($cropX, $cropY, $cropWidth, $cropHeight); return $this; } /* * Vanilla Cropping - Crops from x,y with specified width and height * * @param int $startX * @param int $startY * @param int $cropWidth * @param int $cropHeight * @return GdThumb / public function crop ($startX, $startY, $cropWidth, $cropHeight) { // validate input if (!is_numeric($startX)) { throw new InvalidArgumentException('$startX must be numeric'); } if (!is_numeric($startY)) { throw new InvalidArgumentException('$startY must be numeric'); } if (!is_numeric($cropWidth)) { throw new InvalidArgumentException('$cropWidth must be numeric'); } if (!is_numeric($cropHeight)) { throw new InvalidArgumentException('$cropHeight must be numeric'); } // do some calculations $cropWidth = ($this->currentDimensions['width'] < $cropWidth) ? $this->currentDimensions['width'] : $cropWidth; $cropHeight = ($this->currentDimensions['height'] < $cropHeight) ? $this->currentDimensions['height'] : $cropHeight; // ensure everything's in bounds if (($startX + $cropWidth) > $this->currentDimensions['width']) { $startX = ($this->currentDimensions['width'] - $cropWidth); } if (($startY + $cropHeight) > $this->currentDimensions['height']) { $startY = ($this->currentDimensions['height'] - $cropHeight); } if ($startX < 0) { $startX = 0; } if ($startY < 0) { $startY = 0; } // create the working image if (function_exists('imagecreatetruecolor')) { $this->workingImage = imagecreatetruecolor($cropWidth, $cropHeight); } else { $this->workingImage = imagecreate($cropWidth, $cropHeight); } $this->preserveAlpha(); imagecopyresampled ( $this->workingImage, $this->oldImage, 0, 0, $startX, $startY, $cropWidth, $cropHeight, $cropWidth, $cropHeight ); $this->oldImage = $this->workingImage; $this->currentDimensions['width'] = $cropWidth; $this->currentDimensions['height'] = $cropHeight; return $this; } /* * Rotates image either 90 degrees clockwise or counter-clockwise * * @param string $direction * @retunrn GdThumb / public function rotateImage ($direction = 'CW') { if ($direction == 'CW') { $this->rotateImageNDegrees(90); } else { $this->rotateImageNDegrees(-90); } return $this; } /* * Rotates image specified number of degrees * * @param int $degrees * @return GdThumb / public function rotateImageNDegrees ($degrees) { if (!is_numeric($degrees)) { throw new InvalidArgumentException('$degrees must be numeric'); } if (!function_exists('imagerotate')) { throw new RuntimeException('Your version of GD does not support image rotation.'); } $this->workingImage = imagerotate($this->oldImage, $degrees, 0); $newWidth = $this->currentDimensions['height']; $newHeight = $this->currentDimensions['width']; $this->oldImage = $this->workingImage; $this->currentDimensions['width'] = $newWidth; $this->currentDimensions['height'] = $newHeight; return $this; } /* * Shows an image * * This function will show the current image by first sending the appropriate header * for the format, and then outputting the image data. If headers have already been sent, * a runtime exception will be thrown * * @param bool $rawData Whether or not the raw image stream should be output * @return GdThumb / public function show ($rawData = false) { if (headers_sent()) { throw new RuntimeException('Cannot show image, headers have already been sent'); } switch ($this->format) { case 'GIF': if ($rawData === false) { header('Content-type: image/gif'); } imagegif($this->oldImage); break; case 'JPG': if ($rawData === false) { header('Content-type: image/jpeg'); } imagejpeg($this->oldImage, null, $this->options['jpegQuality']); break; case 'PNG': case 'STRING': if ($rawData === false) { header('Content-type: image/png'); } imagepng($this->oldImage); break; } return $this; } /* * Returns the Working Image as a String * * This function is useful for getting the raw image data as a string for storage in * a database, or other similar things. * * @return string / public function getImageAsString () { $data = null; ob_start(); $this->show(true); $data = ob_get_contents(); ob_end_clean(); return $data; } /* * Saves an image * * This function will make sure the target directory is writeable, and then save the image. * * If the target directory is not writeable, the function will try to correct the permissions (if allowed, this * is set as an option ($this->options['correctPermissions']). If the target cannot be made writeable, then a * RuntimeException is thrown. * * TODO: Create additional paramter for color matte when saving images with alpha to non-alpha formats (i.e. PNG => JPG) * * @param string $fileName The full path and filename of the image to save * @param string $format The format to save the image in (optional, must be one of [GIF,JPG,PNG] * @return GdThumb / public function save ($fileName, $format = null) { $validFormats = array('GIF', 'JPG', 'PNG'); $format = ($format !== null) ? strtoupper($format) : $this->format; if (!in_array($format, $validFormats)) { throw new InvalidArgumentException ('Invalid format type specified in save function: ' . $format); } // make sure the directory is writeable if (!is_writeable(dirname($fileName))) { // try to correct the permissions if ($this->options['correctPermissions'] === true) { @chmod(dirname($fileName), 0777); // throw an exception if not writeable if (!is_writeable(dirname($fileName))) { throw new RuntimeException ('File is not writeable, and could not correct permissions: ' . $fileName); } } // throw an exception if not writeable else { throw new RuntimeException ('File not writeable: ' . $fileName); } } switch ($format) { case 'GIF': imagegif($this->oldImage, $fileName); break; case 'JPG': imagejpeg($this->oldImage, $fileName, $this->options['jpegQuality']); break; case 'PNG': imagepng($this->oldImage, $fileName); break; } return $this; } ################################# # ----- GETTERS / SETTERS ----- # ################################# /* * Sets $this->options to $options * * @param array $options / public function setOptions ($options = array()) { // make sure we've got an array for $this->options (could be null) if (!is_array($this->options)) { $this->options = array(); } // make sure we've gotten a proper argument if (!is_array($options)) { throw new InvalidArgumentException ('setOptions requires an array'); } // we've yet to init the default options, so create them here if (sizeof($this->options) == 0) { $defaultOptions = array ( 'resizeUp' => false, 'jpegQuality' => 70, 'correctPermissions' => false, 'preserveAlpha' => true, 'alphaMaskColor' => array (255, 255, 255), 'preserveTransparency' => true, 'transparencyMaskColor' => array (0, 0, 0) ); } // otherwise, let's use what we've got already else { $defaultOptions = $this->options; } $this->options = array_merge($defaultOptions, $options); } /* * Returns $currentDimensions. * * @see GdThumb::$currentDimensions / public function getCurrentDimensions () { return $this->currentDimensions; } /* * Sets $currentDimensions. * * @param object $currentDimensions * @see GdThumb::$currentDimensions / public function setCurrentDimensions ($currentDimensions) { $this->currentDimensions = $currentDimensions; } /* * Returns $maxHeight. * * @see GdThumb::$maxHeight / public function getMaxHeight () { return $this->maxHeight; } /* * Sets $maxHeight. * * @param object $maxHeight * @see GdThumb::$maxHeight / public function setMaxHeight ($maxHeight) { $this->maxHeight = $maxHeight; } /* * Returns $maxWidth. * * @see GdThumb::$maxWidth / public function getMaxWidth () { return $this->maxWidth; } /* * Sets $maxWidth. * * @param object $maxWidth * @see GdThumb::$maxWidth / public function setMaxWidth ($maxWidth) { $this->maxWidth = $maxWidth; } /* * Returns $newDimensions. * * @see GdThumb::$newDimensions / public function getNewDimensions () { return $this->newDimensions; } /* * Sets $newDimensions. * * @param object $newDimensions * @see GdThumb::$newDimensions / public function setNewDimensions ($newDimensions) { $this->newDimensions = $newDimensions; } /* * Returns $options. * * @see GdThumb::$options / public function getOptions () { return $this->options; } /* * Returns $percent. * * @see GdThumb::$percent / public function getPercent () { return $this->percent; } /* * Sets $percent. * * @param object $percent * @see GdThumb::$percent / public function setPercent ($percent) { $this->percent = $percent; } /* * Returns $oldImage. * * @see GdThumb::$oldImage / public function getOldImage () { return $this->oldImage; } /* * Sets $oldImage. * * @param object $oldImage * @see GdThumb::$oldImage / public function setOldImage ($oldImage) { $this->oldImage = $oldImage; } /* * Returns $workingImage. * * @see GdThumb::$workingImage / public function getWorkingImage () { return $this->workingImage; } /* * Sets $workingImage. * * @param object $workingImage * @see GdThumb::$workingImage / public function setWorkingImage ($workingImage) { $this->workingImage = $workingImage; } ################################# # ----- UTILITY FUNCTIONS ----- # ################################# /* * Calculates a new width and height for the image based on $this->maxWidth and the provided dimensions * * @return array * @param int $width * @param int $height / protected function calcWidth ($width, $height) { $newWidthPercentage = (100 $this->maxWidth) / $width; $newHeight = ($height * $newWidthPercentage) / 100; return array ( 'newWidth' => intval($this->maxWidth), 'newHeight' => intval($newHeight) ); } /** * Calculates a new width and height for the image based on $this->maxWidth and the provided dimensions * * @return array * @param int $width * @param int $height / protected function calcHeight ($width, $height) { $newHeightPercentage = (100 $this->maxHeight) / $height; $newWidth = ($width * $newHeightPercentage) / 100; return array ( 'newWidth' => ceil($newWidth), 'newHeight' => ceil($this->maxHeight) ); } /** * Calculates a new width and height for the image based on $this->percent and the provided dimensions * * @return array * @param int $width * @param int $height / protected function calcPercent ($width, $height) { $newWidth = ($width $this->percent) / 100; $newHeight = ($height * $this->percent) / 100; return array ( 'newWidth' => ceil($newWidth), 'newHeight' => ceil($newHeight) ); } /** * Calculates the new image dimensions * * These calculations are based on both the provided dimensions and $this->maxWidth and $this->maxHeight * * @param int $width * @param int $height / protected function calcImageSize ($width, $height) { $newSize = array ( 'newWidth' => $width, 'newHeight' => $height ); if ($this->maxWidth > 0) { $newSize = $this->calcWidth($width, $height); if ($this->maxHeight > 0 && $newSize['newHeight'] > $this->maxHeight) { $newSize = $this->calcHeight($newSize['newWidth'], $newSize['newHeight']); } } if ($this->maxHeight > 0) { $newSize = $this->calcHeight($width, $height); if ($this->maxWidth > 0 && $newSize['newWidth'] > $this->maxWidth) { $newSize = $this->calcWidth($newSize['newWidth'], $newSize['newHeight']); } } $this->newDimensions = $newSize; } /* * Calculates new image dimensions, not allowing the width and height to be less than either the max width or height * * @param int $width * @param int $height / protected function calcImageSizeStrict ($width, $height) { // first, we need to determine what the longest resize dimension is.. if ($this->maxWidth >= $this->maxHeight) { // and determine the longest original dimension if ($width > $height) { $newDimensions = $this->calcHeight($width, $height); if ($newDimensions['newWidth'] < $this->maxWidth) { $newDimensions = $this->calcWidth($width, $height); } } elseif ($height >= $width) { $newDimensions = $this->calcWidth($width, $height); if ($newDimensions['newHeight'] < $this->maxHeight) { $newDimensions = $this->calcHeight($width, $height); } } } elseif ($this->maxHeight > $this->maxWidth) { if ($width >= $height) { $newDimensions = $this->calcWidth($width, $height); if ($newDimensions['newHeight'] < $this->maxHeight) { $newDimensions = $this->calcHeight($width, $height); } } elseif ($height > $width) { $newDimensions = $this->calcHeight($width, $height); if ($newDimensions['newWidth'] < $this->maxWidth) { $newDimensions = $this->calcWidth($width, $height); } } } $this->newDimensions = $newDimensions; } /* * Calculates new dimensions based on $this->percent and the provided dimensions * * @param int $width * @param int $height / protected function calcImageSizePercent ($width, $height) { if ($this->percent > 0) { $this->newDimensions = $this->calcPercent($width, $height); } } /* * Determines the file format by mime-type * * This function will throw exceptions for invalid images / mime-types * / protected function determineFormat () { if ($this->isDataStream === true) { $this->format = 'STRING'; return; } $formatInfo = getimagesize($this->fileName); // non-image files will return false if ($formatInfo === false) { if ($this->remoteImage) { $this->triggerError('Could not determine format of remote image: ' . $this->fileName); } else { $this->triggerError('File is not a valid image: ' . $this->fileName); } // make sure we really stop execution return; } $mimeType = isset($formatInfo['mime']) ? $formatInfo['mime'] : null; switch ($mimeType) { case 'image/gif': $this->format = 'GIF'; break; case 'image/jpeg': $this->format = 'JPG'; break; case 'image/png': $this->format = 'PNG'; break; default: $this->triggerError('Image format not supported: ' . $mimeType); } } /* * Makes sure the correct GD implementation exists for the file type * / protected function verifyFormatCompatiblity () { $isCompatible = true; $gdInfo = gd_info(); switch ($this->format) { case 'GIF': $isCompatible = $gdInfo['GIF Create Support']; break; case 'JPG': $isCompatible = (isset($gdInfo['JPG Support']) \|\| isset($gdInfo['JPEG Support'])) ? true : false; break; case 'PNG': $isCompatible = $gdInfo[$this->format . ' Support']; break; default: $isCompatible = false; } if (!$isCompatible) { // one last check for "JPEG" instead $isCompatible = $gdInfo['JPEG Support']; if (!$isCompatible) { $this->triggerError('Your GD installation does not support ' . $this->format . ' image types'); } } } /* * Preserves the alpha or transparency for PNG and GIF files * * Alpha / transparency will not be preserved if the appropriate options are set to false. * Also, the GIF transparency is pretty skunky (the results aren't awesome), but it works like a * champ... that's the nature of GIFs tho, so no huge surprise. * * This functionality was originally suggested by commenter Aimi (no links / site provided) - Thanks! :) * */ protected function preserveAlpha () { if ($this->format == 'PNG' && $this->options['preserveAlpha'] === true) { imagealphablending($this->workingImage, false); $colorTransparent = imagecolorallocatealpha ( $this->workingImage, $this->options['alphaMaskColor'][0], $this->options['alphaMaskColor'][1], $this->options['alphaMaskColor'][2], 0 ); imagefill($this->workingImage, 0, 0, $colorTransparent); imagesavealpha($this->workingImage, true); } // preserve transparency in GIFs... this is usually pretty rough tho if ($this->format == 'GIF' && $this->options['preserveTransparency'] === true) { $colorTransparent = imagecolorallocate ( $this->workingImage, $this->options['transparencyMaskColor'][0], $this->options['transparencyMaskColor'][1], $this->options['transparencyMaskColor'][2] ); imagecolortransparent($this->workingImage, $colorTransparent); imagetruecolortopalette($this->workingImage, true, 256); } } }��

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