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<?php |
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namespace Breadthe\PhpContrast; |
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class HexColor implements Color |
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{ |
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public $hex; |
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public $name; |
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public function __construct(string $hex, string $name = null) |
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{ |
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$this->hex = $this->normalize($hex); |
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$this->name = $name; |
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} |
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public static function make(string $hex, string $name = null): self |
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{ |
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return new static($hex, $name); |
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} |
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public static function random(): self |
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{ |
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return new static(self::randomColor()); |
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} |
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/** |
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* '#abc' or 'abc' => '#aabbcc' |
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* '#abcdef' or 'abcdef' => '#abcdef'. |
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*/ |
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protected function normalize(string $hexColor) |
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{ |
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// '#abcdef' or 'abcdef' |
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if (preg_match('/^\s*#?([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})\s*$/i', $hexColor, $matches)) { |
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return sprintf('#%s%s%s', $matches[1], $matches[2], $matches[3]); |
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} |
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// '#abc' or 'abc' |
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if (preg_match('/^\s*#?([0-9a-f])([0-9a-f])([0-9a-f])\s*$/i', $hexColor, $matches)) { |
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return sprintf('#%s%s%s', str_repeat($matches[1], 2), str_repeat($matches[2], 2), |
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str_repeat($matches[3], 2)); |
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} |
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// TODO throw |
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} |
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/** |
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* @see https://stackoverflow.com/questions/5614530/generating-a-random-hex-color-code-with-php |
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*/ |
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protected static function randomColor() |
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{ |
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return static::randomColorPart().static::randomColorPart().static::randomColorPart(); |
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} |
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protected static function randomColorPart() |
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{ |
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return str_pad(dechex(mt_rand(0, 255)), 2, '0', STR_PAD_LEFT); |
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} |
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} |
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breadthe /
php-contrast
