205 lines
4.4 KiB
PHP
Executable File
205 lines
4.4 KiB
PHP
Executable File
<?php
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class Color {
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private $hex;
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private $rgb;
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private $hsl;
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private $alpha;
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private $validColorsList = [
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'white' => 'ffffff',
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'silver' => 'C0C0C0',
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'gray' => '808080',
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'black' => '000000',
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'red' => 'FF0000',
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'maroon' => '800000',
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'yellow' => 'FFFF00',
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'olive' => '808000',
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'lime' => '00FF00',
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'green' => '008000',
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'acqua' => '00FFFF',
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'cyan' => '00FFFF',
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'teal' => '008080',
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'blue' => '0000FF',
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'navy' => '000080',
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'fuchsia' => 'FF00FF',
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'magenta' => 'FF00FF',
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'purple' => '800080'
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];
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private $regexes = [
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'hex3' => '/^([a-fA-F0-9]{3}){1,2}$/',
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'hex6' => '/^#(([a-fA-F0-9]{3}){1,2})$/',
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'rgb' => '/^rgb\( *(0?[0-9]{1,2}|1[0-9]{1,2}|2[0-4][0-9]|25[0-5])\, *(0?[0-9]{1,2}|1[0-9]{1,2}|2[0-4][0-9]|25[0-5]), *(0?[0-9]{1,2}|1[0-9]{1,2}|2[0-4][0-9]|25[0-5]) *\)$/',
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'rgba' =>'/^hsla\( *(0?[0-9]{1,2}|1[0-9]{1,2}|2[0-4][0-9]|25[0-5])\, *(0?[0-9]{1,2}|1[0-9]{1,2}|2[0-4][0-9]|25[0-5]), (0?[0-9]{1,2}|1[0-9]{1,2}|2[0-4][0-9]|25[0-5])\, *((0\.[0-9]{1,2}|1))\)$/',
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'hsl' => '/^hsl\( *(0?[0-9]{1,2}|1[0-9]{1,2}|2[0-4][0-9]|25[0-5])\, *([0-9]{1,3}(\.[0-9]{0,2})?)%, *([0-9]{1,3}(\.[0-9]{0,2})?)% *\)$/',
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'hsla' => '/^hsla\( *(0?[0-9]{1,2}|1[0-9]{1,2}|2[0-4][0-9]|25[0-5])\, *([0-9]{1,3}(\.[0-9]{0,2})?)%, *([0-9]{1,3}(\.[0-9]{0,2})?)%\, *((0\.[0-9]{1,2}|1))\)$/',
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];
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public function __construct ($colorStr) {
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if ($colorStr == 'transparent') {
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} else if (array_key_exists($colorStr, $this->validColorsList)) {
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$this->hex = $this->validColorsList[$colorStr];
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} else if (preg_match($this->regexes['hex3'], $colorStr)) {
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$this->hex = $colorStr;
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} else if (preg_match($this->regexes['hex6'], $colorStr, $matches)) {
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$this->hex = $matches[1];
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} else if (preg_match($this->regexes['rgb'], $colorStr, $matches)) {
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$this->rgb = array(
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'r' => $matches[1],
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'g' => $matches[2],
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'b' => $matches[3],
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);
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} else if (preg_match($this->regexes['rgba'], $colorStr, $matches)) {
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$this->rgb = array(
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'r' => $matches[1],
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'g' => $matches[2],
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'b' => $matches[3],
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'a' =>$matches[5],
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);
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} else if (preg_match($this->regexes['hsl'], $colorStr, $matches)) {
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$this->hsl = array(
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'h' => $matches[1],
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's' => $matches[2],
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'l' => $matches[3],
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);
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} else if (preg_match($this->regexes['hsla'], $colorStr, $matches)) {
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$this->hsl = array(
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'h' => $matches[1],
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's' => $matches[2],
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'l' => $matches[3],
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'a' => $matches[5],
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);
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} else {
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$additionnalMsg = '';
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if(empty($colorStr)) {
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$additionnalMsg = _('Les couleurs hexadécimales doivent être écrites sans le caractère #');
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} else {
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$additionnalMsg = sprintf(_('Vous avez écrit : %s'), htmlspecialchars($colorStr));
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}
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throw new Exception(_('La couleur %s n\'est pas au bon format.') . "\n" .
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$additionnalMsg . "\n" .
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_('Vérifiez votre syntaxe.'));
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}
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}
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public function getRGB () {
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if (isset($this->rgb)) {
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return $this->rgb;
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} elseif (isset($this->hex)) {
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return $this->hex2RGB($this->hex);
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}
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}
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public function getRGBa () {
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if (isset($this->rgba)) {
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return $this->rgba;
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}
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}
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public function getHSLa () {
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if (isset($this->hsla)) {
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return $this->hsla;
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}
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}
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public function getHex () {
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if (isset($this->hex)) {
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return $this->hex;
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} elseif (isset($this->rgb)) {
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return $this->RGB2hex($this->rgb);
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}
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}
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public function getColorAllocation ($imgRessource) {
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list($r, $g, $b) = $this->getRGB();
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return imageColorAllocate($imgRessource, $r, $g, $b);
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}
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public function RGB2hex () {
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}
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public function hex2RGB ($hexStr) {
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$strLen = strlen($hexStr);
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if ($strLen == 6) { //If a proper hex code, convert using bitwise operation. No overhead... faster
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$colorVal = hexdec($hexStr);
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$r = 0xFF & ($colorVal >> 0x10);
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$g = 0xFF & ($colorVal >> 0x8);
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$b = 0xFF & $colorVal;
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} elseif ($strLen == 3) { //if shorthand notation, need some string manipulations
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$r = hexdec(str_repeat(substr($hexStr, 0, 1), 2));
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$g = hexdec(str_repeat(substr($hexStr, 1, 1), 2));
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$b = hexdec(str_repeat(substr($hexStr, 2, 1), 2));
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} else {
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throw new Exception(_('Le paramètre %s n\'est pas une couleur.') . "\n" . _('Vérifiez votre syntaxe.'));
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}
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$this->rgb = array($r, $g, $b);
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return $this->rgb;
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}
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}
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