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File: grayscale.php.tar
home/academiac/www/libraries/joomla/image/filters/grayscale.php 0000644 00000002151 15137271063 0020665 0 ustar 00 <?php /** * @package Joomla.Platform * @subpackage Image * * @copyright Copyright (C) 2005 - 2014 Open Source Matters, Inc. All rights reserved. * @license GNU General Public License version 2 or later; see LICENSE */ defined('JPATH_PLATFORM') or die; /** * Image Filter class to transform an image to grayscale. * * @package Joomla.Platform * @subpackage Image * @since 11.3 */ class JImageFilterGrayScale extends JImageFilter { /** * Method to apply a filter to an image resource. * * @param array $options An array of options for the filter. * * @return void * * @since 11.3 * @throws InvalidArgumentException * @throws RuntimeException */ public function execute(array $options = array()) { // Verify that image filter support for PHP is available. if (!function_exists('imagefilter')) { JLog::add('The imagefilter function for PHP is not available.', JLog::ERROR); throw new RuntimeException('The imagefilter function for PHP is not available.'); } // Perform the grayscale filter. imagefilter($this->handle, IMG_FILTER_GRAYSCALE); } }
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