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Viewing / Editing File: Rgb.php

<?php

namespace Spatie\Color;

class Rgb implements Color
{
    /** @var int */
    protected $red;
    protected $green;
    protected $blue;

public function __construct(int $red, int $green, int $blue)
    {
        Validate::rgbChannelValue($red, 'red');
        Validate::rgbChannelValue($green, 'green');
        Validate::rgbChannelValue($blue, 'blue');

$this->red = $red;
        $this->green = $green;
        $this->blue = $blue;
    }

public static function fromString(string $string)
    {
        Validate::rgbColorString($string);

$matches = null;
        preg_match('/rgb$ *(\d{1,3} *, *\d{1,3} *, *\d{1,3}) *$/i', $string, $matches);

$channels = explode(',', $matches[1]);
        [$red, $green, $blue] = array_map('trim', $channels);

return new static($red, $green, $blue);
    }

public function red(): int
    {
        return $this->red;
    }

public function green(): int
    {
        return $this->green;
    }

public function blue(): int
    {
        return $this->blue;
    }

public function toCIELab(): CIELab
    {
        return $this->toXyz()->toCIELab();
    }

public function toCmyk(): Cmyk
    {
        list($cyan, $magenta, $yellow, $key) = Convert::rgbValueToCmyk($this->red, $this->green, $this->blue);

return new Cmyk($cyan, $magenta, $yellow, $key);
    }

public function toHex(?string $alpha = null): Hex
    {
        return new Hex(
            Convert::rgbChannelToHexChannel($this->red),
            Convert::rgbChannelToHexChannel($this->green),
            Convert::rgbChannelToHexChannel($this->blue),
            $alpha ?? 'ff'
        );
    }

public function toHsb(): Hsb
    {
        list($hue, $saturation, $brightness) = Convert::rgbValueToHsb($this->red, $this->green, $this->blue);

return new Hsb($hue, $saturation, $brightness);
    }

public function toHsl(): Hsl
    {
        [$hue, $saturation, $lightness] = Convert::rgbValueToHsl(
            $this->red,
            $this->green,
            $this->blue
        );

return new Hsl($hue, $saturation, $lightness);
    }

public function toHsla(?float $alpha = null): Hsla
    {
        [$hue, $saturation, $lightness] = Convert::rgbValueToHsl(
            $this->red,
            $this->green,
            $this->blue
        );

return new Hsla($hue, $saturation, $lightness, $alpha ?? 1);
    }

public function toRgb(): self
    {
        return new self($this->red, $this->green, $this->blue);
    }

public function toRgba(?float $alpha = null): Rgba
    {
        return new Rgba($this->red, $this->green, $this->blue, $alpha ?? 1);
    }

public function toXyz(): Xyz
    {
        [$x, $y, $z] = Convert::rgbValueToXyz(
            $this->red,
            $this->green,
            $this->blue
        );

return new Xyz($x, $y, $z);
    }

public function __toString(): string
    {
        return "rgb({$this->red},{$this->green},{$this->blue})";
    }
}

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