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<?php /** * Bitrix Framework * @package bitrix * @subpackage main * @copyright 2001-2020 Bitrix */ namespace Bitrix\Main\File\Image; class Color { protected $red, $green, $blue, $alpha; /** * Color constructor. * @param int $red * @param int $green * @param int $blue * @param float $alpha */ public function __construct($red = 0, $green = 0, $blue = 0, $alpha = 1.0) { $this->setRed($red) ->setGreen($green) ->setBlue($blue) ->setAlpha($alpha); } /** * Creates the color from a string like #ffaabb or ffaabb. * @param string $color * @return Color */ public static function createFromHex($color) { $color = preg_replace("/[^a-f0-9]/is", "", $color); if(strlen($color) != 6) { $color = "FF0000"; } return new static( hexdec(substr($color, 0, 2)), hexdec(substr($color, 2, 2)), hexdec(substr($color, 4, 2)) ); } /** * Returns hex representation e.g. #aabbcc. * @return string */ public function toHex() { return sprintf("#%02x%02x%02x", $this->getRed(), $this->getGreen(), $this->getBlue()); } /** * Returns rgba representation, e.g. rgba(255, 0, 0, 0.5) * @return string */ public function toRgba() { return sprintf("rgba(%d, %d, %d, %0.4f)", $this->getRed(), $this->getGreen(), $this->getBlue(), $this->getAlpha()); } /** * @return int */ public function getRed() { return $this->red; } /** * @param int $red * @return Color */ public function setRed($red) { if($red < 0 || $red > 255) { $red = 0; } $this->red = (int)$red; return $this; } /** * @return int */ public function getGreen() { return $this->green; } /** * @param int $green * @return Color */ public function setGreen($green) { if($green < 0 || $green > 255) { $green = 0; } $this->green = (int)$green; return $this; } /** * @return int */ public function getBlue() { return $this->blue; } /** * @param int $blue * @return Color */ public function setBlue($blue) { if($blue < 0 || $blue > 255) { $blue = 0; } $this->blue = (int)$blue; return $this; } /** * @return float */ public function getAlpha() { return $this->alpha; } /** * @param float $alpha * @return Color */ public function setAlpha($alpha) { $this->alpha = (float)$alpha; return $this; } }
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