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<?php |
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|
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namespace League\Glide\Manipulators\Helpers; |
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|
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use Intervention\Image\Image; |
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|
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class Dimension |
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{ |
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/** |
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* The source image. |
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* |
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* @var Image |
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*/ |
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protected $image; |
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|
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/** |
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* The device pixel ratio. |
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* |
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* @var float |
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*/ |
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protected $dpr; |
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|
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/** |
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* Create dimension helper instance. |
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* |
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* @param Image $image The source image. |
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* @param float $dpr The device pixel ratio. |
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*/ |
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public function __construct(Image $image, $dpr = 1) |
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{ |
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$this->image = $image; |
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$this->dpr = $dpr; |
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} |
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|
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/** |
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* Resolve the dimension. |
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* |
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* @param string $value The dimension value. |
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* |
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* @return float|null The resolved dimension. |
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*/ |
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public function get($value) |
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{ |
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if (is_numeric($value) and $value > 0) { |
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return (float) $value * $this->dpr; |
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} |
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|
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if (preg_match('/^(\d{1,2}(?!\d)|100)(w|h)$/', $value, $matches)) { |
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if ('h' === $matches[2]) { |
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return (float) $this->image->height() * ((float) $matches[1] / 100); |
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} |
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|
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return (float) $this->image->width() * ((float) $matches[1] / 100); |
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} |
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} |
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} |
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|
