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<?php /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker */ /** * This file contains the Image_Tools_Utils class. * * PHP version 4 and 5 * * LICENSE: * Copyright (c) 2008 Firman Wandayandi <firman@php.net> * All rights reserved. * * This source file is subject to the BSD License license that is bundled * with this package in the file LICENSE.txt. * It is also available through the world-wide-web at this URL: * http://www.opensource.org/licenses/bsd-license.php * If you did not receive a copy of the license and are unable to * obtain it through the world-wide-web, please send an email * to pear-dev@list.php.net so we can send you a copy immediately. * * @category Images * @package Image_Tools * @author Firman Wandayandi <firman@php.net> * @copyright Copyright (c) 2008 Firman Wandayandi <firman@php.net> * @license http://www.opensource.org/licenses/bsd-license.php * BSD License * @version $Id: Utils.php,v 1.1 2008/05/26 05:03:59 firman Exp $ * @since File available since Release 1.0.0RC1 */ /** * Image tools utilities class. * * @category Images * @package Image_Tools * @author Firman Wandayandi <firman@php.net> * @copyright Copyright (c) 2008 Firman Wandayandi <firman@php.net> * @license http://www.opensource.org/licenses/bsd-license.php * BSD License * @version Release: 1.0.0RC1 * @since Class available since Release 1.0.0RC1 */ class Image_Tools_Utils { // {{{ colorToRGBA() /** * Convert various color format to RGBA array. * * @param mixed $color Color value (array, string or integer) * @return array|FALSE An RGBA array or FALSE on failure * @access public * @static */ function colorToRGBA($color) { if (is_array($color)) { if (isset($color['r']) && isset($color['g']) && isset($color['b'])) { $color['a'] = isset($color['a']) ? $color['a'] : 0; return $color; } else if (isset($color[0]) && isset($color[1]) && isset($color[2])) { $color[3] = isset($color[3]) ? $color[3] : 0; return array( 'r' => $color[0], 'g' => $color[1], 'b' => $color[2], 'a' => $color[3] ); } } else if (is_string($color)) { $regex = '/^[#|]?([a-f0-9]{2})?([a-f0-9]{2})([a-f0-9]{2})([a-f0-9]{2})/i'; if (preg_match($regex, $color, $matches)) { return array( 'r' => hexdec($matches[2]), 'g' => hexdec($matches[3]), 'b' => hexdec($matches[4]), 'a' => !empty($matches[1]) ? hexdec($matches[1]) : 0 ); } } elseif (is_int($color)) { return array( 'r' => ($color >> 16) & 0xff, 'g' => ($color >> 8) & 0xff, 'b' => ($color >> 0) & 0xff, 'a' => ($color >> 24) & 0xff ); } return false; } // }}} // {{{ getGDVersion() /** * Get the loaded GD version. * * @return string Version * @access protected * @static */ function getGDVersion() { $info = gd_info(); if (preg_match('/\((.+)\)/', $info['GD Version'], $matches)) { return $matches[1]; } return false; } // }}} // {{{ compareGDVersion() /** * Compare the "PHP-standardized" version number string with the * current loaded GD. * * @param string $version * @param string $operator * @return boolean * @static */ function compareGDVersion($version, $operator) { return version_compare(Image_Tools_Utils::getGDVersion(), $version, $operator); } // }}} }
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