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<?php
/**
* @package dompdf
* @link http://dompdf.github.com/
* @author Benj Carson <benjcarson@digitaljunkies.ca>
* @author Fabien Ménager <fabien.menager@gmail.com>
* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
*/
class CSS_Color {
static $cssColorNames = 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",
"darkgray" => "A9A9A9",
"darkgreen" => "006400",
"darkgrey" => "A9A9A9",
"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",
"green" => "008000",
"greenyellow" => "ADFF2F",
"grey" => "808080",
"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",
"lightgray" => "D3D3D3",
"lightgreen" => "90EE90",
"lightgrey" => "D3D3D3",
"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" => "9370DB",
"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" => "DB7093",
"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",
);
static function parse($color) {
if ( is_array($color) ) {
// Assume the array has the right format...
// FIXME: should/could verify this.
return $color;
}
static $cache = array();
$color = strtolower($color);
if ( isset($cache[$color]) ) {
return $cache[$color];
}
if ( in_array($color, array("transparent", "inherit")) ) {
return $cache[$color] = $color;
}
if ( isset(self::$cssColorNames[$color]) ) {
return $cache[$color] = self::getArray(self::$cssColorNames[$color]);
}
$length = mb_strlen($color);
// #rgb format
if ( $length == 4 && $color[0] === "#" ) {
return $cache[$color] = self::getArray($color[1].$color[1].$color[2].$color[2].$color[3].$color[3]);
}
// #rrggbb format
else if ( $length == 7 && $color[0] === "#" ) {
return $cache[$color] = self::getArray(mb_substr($color, 1, 6));
}
// rgb( r,g,b ) format
else if ( mb_strpos($color, "rgb") !== false ) {
$i = mb_strpos($color, "(");
$j = mb_strpos($color, ")");
// Bad color value
if ( $i === false || $j === false ) {
return null;
}
$triplet = explode(",", mb_substr($color, $i+1, $j-$i-1));
if ( count($triplet) != 3 ) {
return null;
}
foreach (array_keys($triplet) as $c) {
$triplet[$c] = trim($triplet[$c]);
if ( $triplet[$c][mb_strlen($triplet[$c]) - 1] === "%" ) {
$triplet[$c] = round($triplet[$c] * 2.55);
}
}
return $cache[$color] = self::getArray(vsprintf("%02X%02X%02X", $triplet));
}
// cmyk( c,m,y,k ) format
// http://www.w3.org/TR/css3-gcpm/#cmyk-colors
else if ( mb_strpos($color, "cmyk") !== false ) {
$i = mb_strpos($color, "(");
$j = mb_strpos($color, ")");
// Bad color value
if ( $i === false || $j === false ) {
return null;
}
$values = explode(",", mb_substr($color, $i+1, $j-$i-1));
if ( count($values) != 4 ) {
return null;
}
foreach ($values as &$c) {
$c = floatval(trim($c));
if ($c > 1.0) $c = 1.0;
if ($c < 0.0) $c = 0.0;
}
return $cache[$color] = self::getArray($values);
}
return null;
}
static function getArray($color) {
$c = array(null, null, null, null, "hex" => null);
if (is_array($color)) {
$c = $color;
$c["c"] = $c[0];
$c["m"] = $c[1];
$c["y"] = $c[2];
$c["k"] = $c[3];
$c["hex"] = "cmyk($c[0],$c[1],$c[2],$c[3])";
}
else {
$c[0] = hexdec(mb_substr($color, 0, 2)) / 0xff;
$c[1] = hexdec(mb_substr($color, 2, 2)) / 0xff;
$c[2] = hexdec(mb_substr($color, 4, 2)) / 0xff;
$c["r"] = $c[0];
$c["g"] = $c[1];
$c["b"] = $c[2];
$c["hex"] = "#$color";
}
return $c;
}
}
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