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<?php
//============================================================+
// File name   : tcpdf_colors.php
// Version     : 1.0.000
// Begin       : 2002-04-09
// Last Update : 2013-03-25
// Author      : Nicola Asuni - Tecnick.com LTD - www.tecnick.com - info@tecnick.com
// License     : GNU-LGPL v3 (http://www.gnu.org/copyleft/lesser.html)
// -------------------------------------------------------------------
// Copyright (C) 2002-2013  Nicola Asuni - Tecnick.com LTD
//
// This file is part of TCPDF software library.
//
// TCPDF is free software: you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// TCPDF is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with TCPDF.  If not, see <http://www.gnu.org/licenses/>.
//
// See LICENSE.TXT file for more information.
// -------------------------------------------------------------------
//
// Description : Array of WEB safe colors
//
//============================================================+

/**
 * @file
 * PHP color class for TCPDF
 * @author Nicola Asuni
 * @package com.tecnick.tcpdf
 */

/**
 * @class TCPDF_COLORS
 * PHP color class for TCPDF
 * @package com.tecnick.tcpdf
 * @version 1.0.000
 * @author Nicola Asuni - info@tecnick.com
 */
class TCPDF_COLORS {

        /**
         * Array of WEB safe colors
         * @public static
         */
        public static $webcolor = array (
                'aliceblue' => 'f0f8ff',
                'antiquewhite' => 'faebd7',
                'aqua' => '00ffff',
                'aquamarine' => '7fffd4',
                'azure' => 'f0ffff',
                'beige' => 'f5f5dc',
                'bisque' => 'ffe4c4',
                'black' => '000000',
                'blanchedalmond' => 'ffebcd',
                'blue' => '0000ff',
                'blueviolet' => '8a2be2',
                'brown' => 'a52a2a',
                'burlywood' => 'deb887',
                'cadetblue' => '5f9ea0',
                'chartreuse' => '7fff00',
                'chocolate' => 'd2691e',
                'coral' => 'ff7f50',
                'cornflowerblue' => '6495ed',
                'cornsilk' => 'fff8dc',
                'crimson' => 'dc143c',
                'cyan' => '00ffff',
                'darkblue' => '00008b',
                'darkcyan' => '008b8b',
                'darkgoldenrod' => 'b8860b',
                'dkgray' => 'a9a9a9',
                'darkgray' => 'a9a9a9',
                'darkgrey' => 'a9a9a9',
                'darkgreen' => '006400',
                'darkkhaki' => 'bdb76b',
                'darkmagenta' => '8b008b',
                'darkolivegreen' => '556b2f',
                'darkorange' => 'ff8c00',
                'darkorchid' => '9932cc',
                'darkred' => '8b0000',
                'darksalmon' => 'e9967a',
                'darkseagreen' => '8fbc8f',
                'darkslateblue' => '483d8b',
                'darkslategray' => '2f4f4f',
                'darkslategrey' => '2f4f4f',
                'darkturquoise' => '00ced1',
                'darkviolet' => '9400d3',
                'deeppink' => 'ff1493',
                'deepskyblue' => '00bfff',
                'dimgray' => '696969',
                'dimgrey' => '696969',
                'dodgerblue' => '1e90ff',
                'firebrick' => 'b22222',
                'floralwhite' => 'fffaf0',
                'forestgreen' => '228b22',
                'fuchsia' => 'ff00ff',
                'gainsboro' => 'dcdcdc',
                'ghostwhite' => 'f8f8ff',
                'gold' => 'ffd700',
                'goldenrod' => 'daa520',
                'gray' => '808080',
                'grey' => '808080',
                'green' => '008000',
                'greenyellow' => 'adff2f',
                'honeydew' => 'f0fff0',
                'hotpink' => 'ff69b4',
                'indianred' => 'cd5c5c',
                'indigo' => '4b0082',
                'ivory' => 'fffff0',
                'khaki' => 'f0e68c',
                'lavender' => 'e6e6fa',
                'lavenderblush' => 'fff0f5',
                'lawngreen' => '7cfc00',
                'lemonchiffon' => 'fffacd',
                'lightblue' => 'add8e6',
                'lightcoral' => 'f08080',
                'lightcyan' => 'e0ffff',
                'lightgoldenrodyellow' => 'fafad2',
                'ltgray' => 'd3d3d3',
                'lightgray' => 'd3d3d3',
                'lightgrey' => 'd3d3d3',
                'lightgreen' => '90ee90',
                'lightpink' => 'ffb6c1',
                'lightsalmon' => 'ffa07a',
                'lightseagreen' => '20b2aa',
                'lightskyblue' => '87cefa',
                'lightslategray' => '778899',
                'lightslategrey' => '778899',
                'lightsteelblue' => 'b0c4de',
                'lightyellow' => 'ffffe0',
                'lime' => '00ff00',
                'limegreen' => '32cd32',
                'linen' => 'faf0e6',
                'magenta' => 'ff00ff',
                'maroon' => '800000',
                'mediumaquamarine' => '66cdaa',
                'mediumblue' => '0000cd',
                'mediumorchid' => 'ba55d3',
                'mediumpurple' => '9370d8',
                'mediumseagreen' => '3cb371',
                'mediumslateblue' => '7b68ee',
                'mediumspringgreen' => '00fa9a',
                'mediumturquoise' => '48d1cc',
                'mediumvioletred' => 'c71585',
                'midnightblue' => '191970',
                'mintcream' => 'f5fffa',
                'mistyrose' => 'ffe4e1',
                'moccasin' => 'ffe4b5',
                'navajowhite' => 'ffdead',
                'navy' => '000080',
                'oldlace' => 'fdf5e6',
                'olive' => '808000',
                'olivedrab' => '6b8e23',
                'orange' => 'ffa500',
                'orangered' => 'ff4500',
                'orchid' => 'da70d6',
                'palegoldenrod' => 'eee8aa',
                'palegreen' => '98fb98',
                'paleturquoise' => 'afeeee',
                'palevioletred' => 'd87093',
                'papayawhip' => 'ffefd5',
                'peachpuff' => 'ffdab9',
                'peru' => 'cd853f',
                'pink' => 'ffc0cb',
                'plum' => 'dda0dd',
                'powderblue' => 'b0e0e6',
                'purple' => '800080',
                'red' => 'ff0000',
                'rosybrown' => 'bc8f8f',
                'royalblue' => '4169e1',
                'saddlebrown' => '8b4513',
                'salmon' => 'fa8072',
                'sandybrown' => 'f4a460',
                'seagreen' => '2e8b57',
                'seashell' => 'fff5ee',
                'sienna' => 'a0522d',
                'silver' => 'c0c0c0',
                'skyblue' => '87ceeb',
                'slateblue' => '6a5acd',
                'slategray' => '708090',
                'slategrey' => '708090',
                'snow' => 'fffafa',
                'springgreen' => '00ff7f',
                'steelblue' => '4682b4',
                'tan' => 'd2b48c',
                'teal' => '008080',
                'thistle' => 'd8bfd8',
                'tomato' => 'ff6347',
                'turquoise' => '40e0d0',
                'violet' => 'ee82ee',
                'wheat' => 'f5deb3',
                'white' => 'ffffff',
                'whitesmoke' => 'f5f5f5',
                'yellow' => 'ffff00',
                'yellowgreen' => '9acd32'
        ); // end of web colors

        /**
         * Array of valid JavaScript color names
         * @public static
         */
        public static $jscolor = array ('transparent', 'black', 'white', 'red', 'green', 'blue', 'cyan', 'magenta', 'yellow', 'dkGray', 'gray', 'ltGray');

        /**
         * Array of Spot colors (C,M,Y,K,name)
         * Color keys must be in lowercase and without spaces.
         * As long as no open standard for spot colours exists, you have to buy a colour book by one of the colour manufacturers and insert the values and names of spot colours directly.
         * Common industry standard spot colors are: ANPA-COLOR, DIC, FOCOLTONE, GCMI, HKS, PANTONE, TOYO, TRUMATCH.
         * @public static
         */
        public static $spotcolor = array (
                // the following are just examples, fill the array with your own values
                'mytcpdfblack' => array(0, 0, 0, 100, 'My TCPDF Black'),
                'mytcpdfred' => array(30, 100, 90, 10, 'My TCPDF Red'),
                'mytcpdfgreen' => array(100, 30, 100, 0, 'My TCPDF Green'),
                'mytcpdfblue' => array(100, 60, 10, 5, 'My TCPDF Blue'),
                'mytcpdfyellow' => array(0, 20, 100, 0, 'My TCPDF Yellow'),
                // ...
        ); // end of spot colors

        // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

        /**
         * Return the Spot color array.
         * @param $name (string) Name of the spot color.
         * @param $spotc (array) Reference to an array of spot colors.
         * @return (array) Spot color array or false if not defined.
         * @since 5.9.125 (2011-10-03)
         * @public static
         */
        public static function getSpotColor($name, &$spotc) {
                if (isset($spotc[$name])) {
                        return $spotc[$name];
                }
                $color = preg_replace('/[\s]*/', '', $name); // remove extra spaces
                $color = strtolower($color);
                if (isset(self::$spotcolor[$color])) {
                        if (!isset($spotc[$name])) {
                                $i = (1 + count($spotc));
                                $spotc[$name] = array('C' => self::$spotcolor[$color][0], 'M' => self::$spotcolor[$color][1], 'Y' => self::$spotcolor[$color][2], 'K' => self::$spotcolor[$color][3], 'name' => self::$spotcolor[$color][4], 'i' => $i);
                        }
                        return $spotc[self::$spotcolor[$color][4]];
                }
                return false;
        }

        /**
         * Returns an array (RGB or CMYK) from an html color name, or a six-digit (i.e. #3FE5AA), or three-digit (i.e. #7FF) hexadecimal color, or a javascript color array, or javascript color name.
         * @param $hcolor (string) HTML color.
         * @param $spotc (array) Reference to an array of spot colors.
         * @param $defcol (array) Color to return in case of error.
         * @return array RGB or CMYK color, or false in case of error.
         * @public static
         */
        public static function convertHTMLColorToDec($hcolor, &$spotc, $defcol=array('R'=>128,'G'=>128,'B'=>128)) {
                $color = preg_replace('/[\s]*/', '', $hcolor); // remove extra spaces
                $color = strtolower($color);
                // check for javascript color array syntax
                if (strpos($color, '[') !== false) {
                        if (preg_match('/[\[][\"\'](t|g|rgb|cmyk)[\"\'][\,]?([0-9\.]*)[\,]?([0-9\.]*)[\,]?([0-9\.]*)[\,]?([0-9\.]*)[\]]/', $color, $m) > 0) {
                                $returncolor = array();
                                switch ($m[1]) {
                                        case 'cmyk': {
                                                // RGB
                                                $returncolor['C'] = max(0, min(100, (floatval($m[2]) * 100)));
                                                $returncolor['M'] = max(0, min(100, (floatval($m[3]) * 100)));
                                                $returncolor['Y'] = max(0, min(100, (floatval($m[4]) * 100)));
                                                $returncolor['K'] = max(0, min(100, (floatval($m[5]) * 100)));
                                                break;
                                        }
                                        case 'rgb': {
                                                // RGB
                                                $returncolor['R'] = max(0, min(255, (floatval($m[2]) * 255)));
                                                $returncolor['G'] = max(0, min(255, (floatval($m[3]) * 255)));
                                                $returncolor['B'] = max(0, min(255, (floatval($m[4]) * 255)));
                                                break;
                                        }
                                        case 'g': {
                                                // grayscale
                                                $returncolor['G'] = max(0, min(255, (floatval($m[2]) * 255)));
                                                break;
                                        }
                                        case 't':
                                        default: {
                                                // transparent (empty array)
                                                break;
                                        }
                                }
                                return $returncolor;
                        }
                } elseif (($dotpos = strpos($color, '.')) !== false) {
                        // remove class parent (i.e.: color.red)
                        $color = substr($color, ($dotpos + 1));
                        if ($color == 'transparent') {
                                // transparent (empty array)
                                return array();
                        }
                }
                if (strlen($color) == 0) {
                        return $defcol;
                }
                // RGB ARRAY
                if (substr($color, 0, 3) == 'rgb') {
                        $codes = substr($color, 4);
                        $codes = str_replace(')', '', $codes);
                        $returncolor = explode(',', $codes);
                        foreach ($returncolor as $key => $val) {
                                if (strpos($val, '%') > 0) {
                                        // percentage
                                        $returncolor[$key] = (255 * intval($val) / 100);
                                } else {
                                        $returncolor[$key] = intval($val);
                                }
                                // normalize value
                                $returncolor[$key] = max(0, min(255, $returncolor[$key]));
                        }
                        return $returncolor;
                }
                // CMYK ARRAY
                if (substr($color, 0, 4) == 'cmyk') {
                        $codes = substr($color, 5);
                        $codes = str_replace(')', '', $codes);
                        $returncolor = explode(',', $codes);
                        foreach ($returncolor as $key => $val) {
                                if (strpos($val, '%') !== false) {
                                        // percentage
                                        $returncolor[$key] = (100 * intval($val) / 100);
                                } else {
                                        $returncolor[$key] = intval($val);
                                }
                                // normalize value
                                $returncolor[$key] = max(0, min(100, $returncolor[$key]));
                        }
                        return $returncolor;
                }
                if ($color{0} != '#') {
                        // COLOR NAME
                        if (isset(self::$webcolor[$color])) {
                                // web color
                                $color_code = self::$webcolor[$color];
                        } else {
                                // spot color
                                $returncolor = self::getSpotColor($color, $spotc);
                                if ($returncolor === false) {
                                        $returncolor = $defcol;
                                }
                                return $returncolor;
                        }
                } else {
                        $color_code = substr($color, 1);
                }
                // HEXADECIMAL REPRESENTATION
                switch (strlen($color_code)) {
                        case 3: {
                                // 3-digit RGB hexadecimal representation
                                $r = substr($color_code, 0, 1);
                                $g = substr($color_code, 1, 1);
                                $b = substr($color_code, 2, 1);
                                $returncolor = array();
                                $returncolor['R'] = max(0, min(255, hexdec($r.$r)));
                                $returncolor['G'] = max(0, min(255, hexdec($g.$g)));
                                $returncolor['B'] = max(0, min(255, hexdec($b.$b)));
                                break;
                        }
                        case 6: {
                                // 6-digit RGB hexadecimal representation
                                $returncolor = array();
                                $returncolor['R'] = max(0, min(255, hexdec(substr($color_code, 0, 2))));
                                $returncolor['G'] = max(0, min(255, hexdec(substr($color_code, 2, 2))));
                                $returncolor['B'] = max(0, min(255, hexdec(substr($color_code, 4, 2))));
                                break;
                        }
                        case 8: {
                                // 8-digit CMYK hexadecimal representation
                                $returncolor = array();
                                $returncolor['C'] = max(0, min(100, round(hexdec(substr($color_code, 0, 2)) / 2.55)));
                                $returncolor['M'] = max(0, min(100, round(hexdec(substr($color_code, 2, 2)) / 2.55)));
                                $returncolor['Y'] = max(0, min(100, round(hexdec(substr($color_code, 4, 2)) / 2.55)));
                                $returncolor['K'] = max(0, min(100, round(hexdec(substr($color_code, 6, 2)) / 2.55)));
                                break;
                        }
                        default: {
                                $returncolor = $defcol;
                                break;
                        }
                }
                return $returncolor;
        }

        /**
         * Convert a color array into a string representation.
         * @param $c (array) Array of colors.
         * @return (string) The color array representation.
         * @since 5.9.137 (2011-12-01)
         * @public static
         */
        public static function getColorStringFromArray($c) {
                $c = array_values($c);
                $color = '[';
                switch (count($c)) {
                        case 4: {
                                // CMYK
                                $color .= sprintf('%F %F %F %F', (max(0, min(100, floatval($c[0]))) / 100), (max(0, min(100, floatval($c[1]))) / 100), (max(0, min(100, floatval($c[2]))) / 100), (max(0, min(100, floatval($c[3]))) / 100));
                                break;
                        }
                        case 3: {
                                // RGB
                                $color .= sprintf('%F %F %F', (max(0, min(255, floatval($c[0]))) / 255), (max(0, min(255, floatval($c[1]))) / 255), (max(0, min(255, floatval($c[2]))) / 255));
                                break;
                        }
                        case 1: {
                                // grayscale
                                $color .= sprintf('%F', (max(0, min(255, floatval($c[0]))) / 255));
                                break;
                        }
                }
                $color .= ']';
                return $color;
        }

        /**
         * Convert color to javascript color.
         * @param $color (string) color name or "#RRGGBB"
         * @protected
         * @since 2.1.002 (2008-02-12)
         * @public static
         */
        public static function _JScolor($color) {
                if (substr($color, 0, 1) == '#') {
                        return sprintf("['RGB',%F,%F,%F]", (hexdec(substr($color, 1, 2)) / 255), (hexdec(substr($color, 3, 2)) / 255), (hexdec(substr($color, 5, 2)) / 255));
                }
                if (!in_array($color, self::$jscolor)) {
                        // default transparent color
                        $color = $jscolor[0];
                }
                return 'color.'.$color;
        }


} // --- END OF CLASS ---

//============================================================+
// END OF FILE
//============================================================+