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<?php |
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|
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namespace League\Glide\Manipulators; |
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|
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use Intervention\Image\Image; |
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use League\Glide\Manipulators\Helpers\Color; |
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use League\Glide\Manipulators\Helpers\Dimension; |
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|
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/** |
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* @property string $border |
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* @property string $dpr |
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*/ |
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class Border extends BaseManipulator |
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{ |
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/** |
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* Perform border image manipulation. |
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* |
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* @param Image $image The source image. |
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* |
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* @return Image The manipulated image. |
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*/ |
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public function run(Image $image) |
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{ |
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if ($border = $this->getBorder($image)) { |
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list($width, $color, $method) = $border; |
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|
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if ('overlay' === $method) { |
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return $this->runOverlay($image, $width, $color); |
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} |
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|
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if ('shrink' === $method) { |
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return $this->runShrink($image, $width, $color); |
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} |
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|
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if ('expand' === $method) { |
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return $this->runExpand($image, $width, $color); |
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} |
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} |
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|
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return $image; |
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} |
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|
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/** |
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* Resolve border amount. |
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* |
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* @param Image $image The source image. |
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* |
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* @return (float|string)[]|null The resolved border amount. |
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* |
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* @psalm-return array{0: float, 1: string, 2: string}|null |
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*/ |
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public function getBorder(Image $image) |
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{ |
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if (!$this->border) { |
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return; |
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} |
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|
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$values = explode(',', $this->border); |
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|
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$width = $this->getWidth($image, $this->getDpr(), isset($values[0]) ? $values[0] : null); |
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$color = $this->getColor(isset($values[1]) ? $values[1] : null); |
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$method = $this->getMethod(isset($values[2]) ? $values[2] : null); |
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|
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if ($width) { |
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return [$width, $color, $method]; |
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} |
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} |
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|
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/** |
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* Get border width. |
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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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* @param string $width The border width. |
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* |
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* @return float|null The resolved border width. |
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*/ |
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public function getWidth(Image $image, $dpr, $width) |
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{ |
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return (new Dimension($image, $dpr))->get($width); |
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} |
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|
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/** |
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* Get formatted color. |
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* |
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* @param string $color The color. |
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* |
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* @return string The formatted color. |
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*/ |
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public function getColor($color) |
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{ |
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return (new Color($color))->formatted(); |
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} |
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|
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/** |
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* Resolve the border method. |
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* |
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* @param string $method The raw border method. |
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* |
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* @return string The resolved border method. |
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*/ |
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public function getMethod($method) |
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{ |
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if (!in_array($method, ['expand', 'shrink', 'overlay'], true)) { |
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return 'overlay'; |
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} |
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|
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return $method; |
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} |
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|
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/** |
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* Resolve the device pixel ratio. |
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* |
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* @return float The device pixel ratio. |
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*/ |
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public function getDpr() |
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{ |
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if (!is_numeric($this->dpr)) { |
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return 1.0; |
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} |
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|
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if ($this->dpr < 0 or $this->dpr > 8) { |
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return 1.0; |
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} |
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|
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return (float) $this->dpr; |
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} |
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|
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/** |
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* Run the overlay border method. |
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* |
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* @param Image $image The source image. |
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* @param float $width The border width. |
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* @param string $color The border color. |
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* |
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* @return Image The manipulated image. |
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*/ |
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public function runOverlay(Image $image, $width, $color) |
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{ |
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return $image->rectangle( |
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(int) round($width / 2), |
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(int) round($width / 2), |
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(int) round($image->width() - ($width / 2)), |
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(int) round($image->height() - ($width / 2)), |
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function ($draw) use ($width, $color) { |
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$draw->border($width, $color); |
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} |
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); |
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} |
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|
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/** |
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* Run the shrink border method. |
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* |
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* @param Image $image The source image. |
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* @param float $width The border width. |
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* @param string $color The border color. |
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* |
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* @return Image The manipulated image. |
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*/ |
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public function runShrink(Image $image, $width, $color) |
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{ |
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return $image |
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->resize( |
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(int) round($image->width() - ($width * 2)), |
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(int) round($image->height() - ($width * 2)) |
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) |
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->resizeCanvas( |
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(int) round($width * 2), |
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(int) round($width * 2), |
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'center', |
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true, |
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$color |
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); |
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} |
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|
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/** |
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* Run the expand border method. |
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* |
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* @param Image $image The source image. |
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* @param float $width The border width. |
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* @param string $color The border color. |
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* |
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* @return Image The manipulated image. |
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*/ |
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public function runExpand(Image $image, $width, $color) |
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{ |
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return $image->resizeCanvas( |
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(int) round($width * 2), |
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(int) round($width * 2), |
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'center', |
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true, |
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$color |
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); |
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} |
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} |
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|
