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Editing: Hex.php
<?php namespace Spatie\Color; class Hex implements Color { /** @var string */ protected $red; protected $green; protected $blue; protected $alpha = 'ff'; public function __construct(string $red, string $green, string $blue, string $alpha = 'ff') { Validate::hexChannelValue($red, 'red'); Validate::hexChannelValue($green, 'green'); Validate::hexChannelValue($blue, 'blue'); Validate::hexChannelValue($alpha, 'alpha'); $this->red = strtolower($red); $this->green = strtolower($green); $this->blue = strtolower($blue); $this->alpha = strtolower($alpha); } public static function fromString(string $string) { Validate::hexColorString($string); $string = ltrim($string, '#'); switch (strlen($string)) { case 3: [$red, $green, $blue] = str_split($string); $red .= $red; $green .= $green; $blue .= $blue; $alpha = 'ff'; break; case 4: [$red, $green, $blue, $alpha] = str_split($string); $red .= $red; $green .= $green; $blue .= $blue; $alpha .= $alpha; break; default: case 6: [$red, $green, $blue] = str_split($string, 2); $alpha = 'ff'; break; case 8: [$red, $green, $blue, $alpha] = str_split($string, 2); break; } return new static($red, $green, $blue, $alpha); } public function red(): string { return $this->red; } public function green(): string { return $this->green; } public function blue(): string { return $this->blue; } public function alpha(): string { return $this->alpha; } public function toCIELab(): CIELab { return $this->toRgb()->toCIELab(); } public function toCmyk(): Cmyk { return $this->toRgb()->toCmyk(); } public function toHex(string $alpha = 'ff'): self { return new self($this->red, $this->green, $this->blue, $alpha); } public function toHsb(): Hsb { return $this->toRgb()->toHsb(); } public function toHsl(): Hsl { [$hue, $saturation, $lightness] = Convert::rgbValueToHsl( Convert::hexChannelToRgbChannel($this->red), Convert::hexChannelToRgbChannel($this->green), Convert::hexChannelToRgbChannel($this->blue) ); return new Hsl($hue, $saturation, $lightness); } public function toHsla(float $alpha = 1): Hsla { [$hue, $saturation, $lightness] = Convert::rgbValueToHsl( Convert::hexChannelToRgbChannel($this->red), Convert::hexChannelToRgbChannel($this->green), Convert::hexChannelToRgbChannel($this->blue) ); return new Hsla($hue, $saturation, $lightness, $alpha); } public function toRgb(): Rgb { return new Rgb( Convert::hexChannelToRgbChannel($this->red), Convert::hexChannelToRgbChannel($this->green), Convert::hexChannelToRgbChannel($this->blue) ); } public function toRgba(float $alpha = 1): Rgba { return $this->toRgb()->toRgba($alpha); } public function toXyz(): Xyz { return $this->toRgb()->toXyz(); } public function __toString(): string { return "#{$this->red}{$this->green}{$this->blue}" . ($this->alpha !== 'ff' ? $this->alpha : ''); } }
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