negate.php

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<?php
/**
 * @package     Joomla.Platform
 * @subpackage  Image
 *
 * @copyright   Copyright (C) 2005 - 2013 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 negate the colors of an image.
 *
 * @package     Joomla.Platform
 * @subpackage  Image
 * @since       11.3
 */
class JImageFilterNegate 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
         */
        public function execute(array $options = array())
        {
                // Perform the negative filter.
                imagefilter($this->handle, IMG_FILTER_NEGATE);
        }
}