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<?php
//============================================================+
// File name   : tcpdf_colors.php
// Version     : 1.0.004
// Begin       : 2002-04-09
// Last Update : 2014-04-25
// 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 1.0.004
 * @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 (
		// special registration colors
		'none'    => array(  0,   0,   0,   0, 'None'),
		'all'     => array(100, 100, 100, 100, 'All'),
		// standard CMYK colors
		'cyan'    => array(100,   0,   0,   0, 'Cyan'),
		'magenta' => array(  0, 100,   0,   0, 'Magenta'),
		'yellow'  => array(  0,   0, 100,   0, 'Yellow'),
		'key'     => array(  0,   0,   0, 100, 'Key'),
		// alias
		'white'   => array(  0,   0,   0,   0, 'White'),
		'black'   => array(  0,   0,   0, 100, 'Black'),
		// standard RGB colors
		'red'     => array(  0, 100, 100,   0, 'Red'),
		'green'   => array(100,   0, 100,   0, 'Green'),
		'blue'    => array(100, 100,   0,   0, 'Blue'),
		// Add here standard spot colors or dynamically define them with AddSpotColor()
		// ...
	); // 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 $returncolor;
			}
		} elseif ((substr($color, 0, 4) != 'cmyk') AND (substr($color, 0, 3) != 'rgb') AND (($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 TCPDF_COLORS CLASS

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