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<?php |
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namespace XoopsModules\Extcal; |
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/** |
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* Class ColorTools. |
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*/ |
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class ColorTools |
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{ |
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public function __construct() |
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{ |
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} |
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/************************************************************** |
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* Ajoute ou rtir un icrement sur chaque compsante RGB d'une couleur |
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* Les valeur sont limiter au bornes inférieure et supérieure 0 et 255 |
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************************************************************** |
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* |
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* @param $colorHexa |
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* @param $incrementRouge |
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* @param $incrementVert |
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* @param $incrementBleu |
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* @param int $plancherRouge |
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* @param int $plafondRouge |
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* @param int $plancherVert |
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* @param int $plafondVert |
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* @param int $plancherBleu |
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* @param int $plafondBleu |
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* |
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* @return string |
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*/ |
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public function modifierCouleur( |
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$colorHexa, |
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$incrementRouge, |
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$incrementVert, |
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$incrementBleu, |
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$plancherRouge = 0, |
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$plafondRouge = 255, |
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$plancherVert = 0, |
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$plafondVert = 255, |
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$plancherBleu = 0, |
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$plafondBleu = 255 |
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) { |
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$t10 = static::hexa2rgbA($colorHexa); |
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$t10[1] = static::bornerValeur($t10[1] + $incrementRouge, $plancherRouge, $plafondRouge); |
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$t10[2] = static::bornerValeur($t10[2] + $incrementVert, $plancherVert, $plafondVert); |
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$t10[3] = static::bornerValeur($t10[3] + $incrementBleu, $plancherBleu, $plafondBleu); |
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$newColorHexa = static::getHexaColorFromA($t10); |
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return $newColorHexa; |
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} |
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/************************************************************** |
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* Eclairci une couleur |
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* elle borné pa un plancher et un plafond pur évite le tout blanc ou tout blanc |
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* ou les blocage sur une couleur pur (ex #FF0000) |
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************************************************************** |
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* @param $colorHexa |
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* @param int $plancher |
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* @param int $plafond |
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* @return string |
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*/ |
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public static function eclaircir($colorHexa, $plancher = 0, $plafond = 255) |
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{ |
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$tMin = ['', $plancher, $plancher, $plancher]; |
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$tMax = ['', $plafond, $plafond, $plafond]; |
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$t10 = static::hexa2rgbA($colorHexa); |
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// echo "<hr>"; |
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// Extcal\Utility::echoArray($t10); |
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$max = $plancher; |
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for ($h = 1; $h <= 3; ++$h) { |
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if ($max < $t10[$h]) { |
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$max = $t10[$h]; |
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} |
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} |
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$increment = $plafond - $max; |
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// $t10[1] = $t10[1] + $increment; |
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// $t10[2] = $t10[2] + $increment; |
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// $t10[3] = $t10[3] + $increment; |
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$min = 0; |
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for ($h = 1; $h <= 3; ++$h) { |
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$t10[$h] += $increment; |
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if ($t10[$h] < $tMin[$h] && $min < ($tMin[$h] - $t10[$h])) { |
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$min = ($tMin[$h] - $t10[$h]); |
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} |
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} |
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// echo "{$colorHexa}-{$plancher}-{$plafond}<br>"; |
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// echo "{$min}-{$max}-{$increment}<br>"; |
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$t10[1] = static::bornerValeur($t10[1] + $min, $plancher, $plafond); |
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$t10[2] = static::bornerValeur($t10[2] + $min, $plancher, $plafond); |
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$t10[3] = static::bornerValeur($t10[3] + $min, $plancher, $plafond); |
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// Extcal\Utility::echoArray($t10); |
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$newColorHexa = static::getHexaColorFromA($t10); |
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// echo "colorHexa = {$newColorHexa}-{$colorHexa}<br>"; |
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return $newColorHexa; |
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} |
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/************************************************************** |
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* Fonce une couleur |
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* elle borné pa un plancher et un plafond pur évite le tout blanc ou tout blanc |
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* ou les blocage sur une couleur pur (ex #FFFF00) |
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************************************************************** |
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* @param $colorHexa |
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* @param int $plancher |
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* @param int $plafond |
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* @return string |
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*/ |
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public function foncer($colorHexa, $plancher = 0, $plafond = 255) |
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{ |
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$tMin = ['', $plancher, $plancher, $plancher]; |
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$tMax = ['', $plafond, $plafond, $plafond]; |
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$t10 = static::hexa2rgbA($colorHexa); |
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$max = 255; |
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for ($h = 1; $h <= 3; ++$h) { |
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if ($max > $t10[$h]) { |
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$max = $t10[$h]; |
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} |
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} |
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$increment = -$max; |
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// $t10[1] = $t10[1] + $increment; |
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// $t10[2] = $t10[2] + $increment; |
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// $t10[3] = $t10[3] + $increment; |
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$min = 0; |
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for ($h = 1; $h <= 3; ++$h) { |
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$t10[$h] += $increment; |
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if ($t10[$h] > $tMax[$h] && $min < ($t10[$h] - $tMax[$h])) { |
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$min = ($t10[$h] - $tMax[$h]); |
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} |
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} |
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$t10[1] = static::bornerValeur($t10[1] - $min, $plancher, $plafond); |
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$t10[2] = static::bornerValeur($t10[2] - $min, $plancher, $plafond); |
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$t10[2] = static::bornerValeur($t10[3] - $min, $plancher, $plafond); |
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$colorHexa = static::getHexaColorFromA($t10); |
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return $colorHexa; |
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} |
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/************************************************************** |
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* Renvoi une couleur RGB en hexa a partir du tableau passe en parametr |
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* Description du tableau |
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* 0 = doit contenir '#' ou '' |
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* 1 = int red |
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* 2 = int vert |
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* 3 = int bleu |
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************************************************************** |
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* @param $aColors |
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* @return string |
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*/ |
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public static function getHexaColorFromA($aColors) |
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{ |
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$tHex = ['', '', '', '']; |
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$tHex[0] = $aColors[0]; |
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$tHex[1] = mb_substr('00' . \dechex($aColors[1]), -2); |
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$tHex[2] = mb_substr('00' . \dechex($aColors[2]), -2); |
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$tHex[3] = mb_substr('00' . \dechex($aColors[3]), -2); |
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$colorHexa = \implode('', $tHex); |
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return $colorHexa; |
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} |
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/************************************************************** |
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* Transforme les composante d'une couleur en valeu hexa |
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* prefixe doit contenir '#' ou '' |
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************************************************************** |
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* @param $r |
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* @param $g |
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* @param $b |
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* @param string $prefixe |
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* @return string |
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*/ |
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public function rgb2hexa($r, $g, $b, $prefixe = '') |
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{ |
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$colorHexa = static::getHexaColorFromA([$prefixe, $r, $g, $b]); |
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return $colorHexa; |
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} |
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/************************************************************** |
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* renvoi un tableau d'entier des valeur rgbd d'une couleur a partir d'un hexa |
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* Description du tableau renvoyé |
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* 0 = contient '#' ou '' (selon premier cactere de la couleur hexa) |
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* 1 = int red |
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* 2 = int vert |
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* 3 = int bleu |
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************************************************************** |
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* @param $colorHexa |
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* @return array |
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*/ |
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public static function hexa2rgbA($colorHexa) |
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{ |
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$t = ['', '', '', '']; |
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if (0 === mb_strpos($colorHexa, '#')) { |
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$t[0] = '#'; |
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$offsetCar = 1; |
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} else { |
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$t[0] = ''; |
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$offsetCar = 0; |
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} |
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$t[1] = \hexdec(mb_substr($colorHexa, $offsetCar + 0, 2)); |
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$t[2] = \hexdec(mb_substr($colorHexa, $offsetCar + 2, 2)); |
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$t[3] = \hexdec(mb_substr($colorHexa, $offsetCar + 4, 2)); |
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return $t; |
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} |
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/************************************************************** |
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* Renvoi les composante rgb d'une couleur par référence |
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************************************************************** |
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* @param $colorHexa |
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* @param $r |
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* @param $v |
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* @param $b |
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* @param $diese |
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* @return bool |
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*/ |
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public function hexa2rgb($colorHexa, &$r, &$v, &$b, &$diese) |
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{ |
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$t = static::hexa2rgbA($colorHexa); |
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$r = $t[1]; |
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$v = $t[2]; |
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$v = $t[3]; |
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$diese = $t[0]; |
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return true; |
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} |
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/************************************************************** |
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* Borne les valeurs max et min d'une valeur |
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************************************************************** |
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* @param $val |
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* @param $min |
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* @param $max |
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* @return mixed |
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*/ |
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public static function bornerValeur($val, $min, $max) |
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{ |
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if ($val < $min) { |
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$val = $min; |
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} elseif ($val > $max) { |
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$val = $max; |
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} |
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return $val; |
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} |
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//-------------------------------------------------------- |
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} // --- fin de la classe colors |
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//-------------------------------------------------------- |
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mambax7 /
extcal
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