This is the GD Implementation of the PHP Thumb library.
function thumb($request)
{
header("Content-Type: image/png");
header("Cache-Control: private, max-age=10800, pre-check=10800");
header("Pragma: private");
header("Expires: " . date(DATE_RFC822, strtotime(" 1 day")));
$imageSizes = array('thumb' => '100x75', 'square' => '150x150', 'small' => '640x480', 'medium' => '800x600', 'large' => '1024x768', 'original' => '1024x768');
///media/(.*?)/(thumb|square|small|medium|large)/
//if (preg_match("/ell/", "Hello World!", $matches)) {
$urlArr = explode('/', $_SERVER["REQUEST_URI"]);
$imageSize = $urlArr[count($urlArr) - 2];
if (array_key_exists($imageSize, $imageSizes)) {
unset($urlArr[count($urlArr) - 2]);
} else {
$imageSize = 'original';
}
$url = preg_replace('/(.*?)media\\//i', '/media/', implode('/', $urlArr));
$originalFile = urldecode(SITE_PATH . $url);
$cacheFolder = sprintf('%s/cache/images/%s', SITE_PATH, $imageSize);
$cacheFile = sprintf('%s/%s', $cacheFolder, implode('-', $urlArr));
$fileInfo = pathinfo($originalFile);
if (!is_dir($cacheFolder)) {
@mkdir($cacheFolder, 0755, true);
}
if (@is_file(sprintf('%s/media/admn/img/icons/256/%s.png', APPLICATION_PATH, $fileInfo['extension']))) {
readfile(sprintf('%s/media/admn/img/icons/256/%s.png', APPLICATION_PATH, $fileInfo['extension']));
} else {
if (!is_file($cacheFile)) {
if (is_file($originalFile)) {
try {
$options = array('jpegQuality' => 80);
$thumb = new PhpThumb($originalFile);
$thumb->setOptions($options);
//$newDimensions = $thumb->getCurrentDimensions();
//if($imageSize != 'original'){
$newDimensions = explode('x', $imageSizes[$imageSize]);
//}
$thumb->resize($newDimensions[0], $newDimensions[1]);
$thumb->save($cacheFile, 'png');
} catch (RuntimeException $e) {
}
}
}
if (is_file($cacheFile)) {
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', filemtime($cacheFile)) . ' GMT');
readfile($cacheFile);
} else {
readfile($originalFile);
}
}
}
/**
* Returns an instance of self
*
* This is the usual singleton function that returns / instantiates the object
*
* @return PhpThumb
*/
public static function getInstance()
{
if (!self::$_instance instanceof self) {
self::$_instance = new self();
}
return self::$_instance;
}
*
* @author Ian Selby <*****@*****.**>
* @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
*
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();
$pt->registerPlugin('GdReflectionLib', 'gd');
/**
* Utility function for checking if the server can generate thumbnails.
*
* @return bool True if it can, false otherwise.
*/
public function thumbnailsAvailable()
{
if (!self::$_thumbnails) {
require_once JPATH_LIBRARIES.'/koowa/components/com_files/helper/phpthumb/phpthumb.php';
$pt = PhpThumb::getInstance();
self::$_thumbnails = $pt->isValidImplementation(PhpThumbFactory::$defaultImplemenation) || $pt->isValidImplementation('gd');
}
return self::$_thumbnails;
}
