Файл: vendor/intervention/image/src/Colors/AlphaChannel.php
Строк: 83
<?php
declare(strict_types=1);
namespace InterventionImageColors;
use InterventionImageExceptionsInvalidArgumentException;
class AlphaChannel extends AbstractColorChannel
{
/**
* @throws InvalidArgumentException
*/
final public function __construct(float $value = 1)
{
if ($value < 0 || $value > 1) {
throw new InvalidArgumentException(
'Color channel value of ' . static::class . ' must be in range 0 to 1',
);
}
$this->value = (int) $this->validValueOrFail(intval(round($value * $this->max())));
}
/**
* {@inheritdoc}
*
* @see ColorChannelInterface::fromNormalized()
*
* @throws InvalidArgumentException
*/
public static function fromNormalized(float $normalized): self
{
return new static($normalized);
}
/**
* {@inheritdoc}
*
* @see ColorChannelInterface::value()
*/
public function value(): int
{
return $this->value;
}
/**
* {@inheritdoc}
*
* @see ColorChannelInterface::min()
*/
public static function min(): float
{
return 0;
}
/**
* {@inheritdoc}
*
* @see ColorChannelInterface::max()
*/
public static function max(): float
{
return 255;
}
/**
* {@inheritdoc}
*
* @see ColorChannelInterface::toString()
*/
public function toString(): string
{
return strval($this->normalized(2));
}
}