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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;
}
}