Файл: vendor/intervention/image/src/Colors/Rgb/Decoders/StringColorDecoder.php
Строк: 72
<?php
declare(strict_types=1);
namespace InterventionImageColorsRgbDecoders;
use InterventionImageColorsRgbColor;
use InterventionImageDriversAbstractDecoder;
use InterventionImageExceptionsDecoderException;
use InterventionImageInterfacesColorInterface;
use InterventionImageInterfacesDecoderInterface;
use InterventionImageInterfacesImageInterface;
class StringColorDecoder extends AbstractDecoder implements DecoderInterface
{
/**
* Decode rgb color strings
*
* @param mixed $input
* @return ImageInterface|ColorInterface
*/
public function decode(mixed $input): ImageInterface|ColorInterface
{
if (!is_string($input)) {
throw new DecoderException('Unable to decode input');
}
$pattern = '/^s?rgba?((?P<r>[0-9.]+%?), ?(?P<g>[0-9.]+%?), ?(?P<b>[0-9.]+%?)' .
'(?:, ?(?P<a>(?:1)|(?:1.0*)|(?:0)|(?:0?.d+%?)|(?:d{1,3}%)))?)$/i';
if (preg_match($pattern, $input, $matches) != 1) {
throw new DecoderException('Unable to decode input');
}
// rgb values
$values = array_map(function (string $value): int {
return match (strpos($value, '%')) {
false => intval(trim($value)),
default => intval(round(floatval(trim(str_replace('%', '', $value))) / 100 * 255)),
};
}, [$matches['r'], $matches['g'], $matches['b']]);
// alpha value
if (array_key_exists('a', $matches)) {
$values[] = match (true) {
strpos($matches['a'], '%') => round(intval(trim(str_replace('%', '', $matches['a']))) / 2.55),
default => intval(round(floatval(trim($matches['a'])) * 255)),
};
}
return new Color(...$values);
}
}