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<?php |
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namespace League\Glide\Manipulators; |
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use Intervention\Image\Image; |
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/** |
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* @property string $dpr |
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* @property string $fit |
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* @property string $h |
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* @property string $w |
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*/ |
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class Size extends BaseManipulator |
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{ |
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/** |
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* Maximum image size in pixels. |
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* @var integer|null |
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*/ |
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protected $maxImageSize; |
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/** |
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* Create Size instance. |
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* @param integer|null $maxImageSize Maximum image size in pixels. |
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*/ |
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public function __construct($maxImageSize = null) |
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{ |
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$this->maxImageSize = $maxImageSize; |
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} |
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/** |
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* Set the maximum image size. |
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* @param integer|null Maximum image size in pixels. |
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*/ |
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public function setMaxImageSize($maxImageSize) |
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{ |
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$this->maxImageSize = $maxImageSize; |
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} |
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/** |
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* Get the maximum image size. |
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* @return integer|null Maximum image size in pixels. |
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*/ |
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public function getMaxImageSize() |
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{ |
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return $this->maxImageSize; |
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} |
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/** |
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* Perform size image manipulation. |
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* @param Image $image The source image. |
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* @return Image The manipulated image. |
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*/ |
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public function run(Image $image) |
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{ |
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$width = $this->getWidth(); |
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$height = $this->getHeight(); |
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$fit = $this->getFit(); |
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$dpr = $this->getDpr(); |
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list($width, $height) = $this->resolveMissingDimensions($image, $width, $height); |
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list($width, $height) = $this->applyDpr($width, $height, $dpr); |
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list($width, $height) = $this->limitImageSize($width, $height); |
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if ((int) $width !== (int) $image->width() or (int) $height !== (int) $image->height()) { |
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$image = $this->runResize($image, $fit, (int) $width, (int) $height); |
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} |
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return $image; |
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} |
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/** |
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* Resolve width. |
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* @return integer|null The resolved width. |
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*/ |
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public function getWidth() |
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{ |
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if (!is_numeric($this->w)) { |
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return; |
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} |
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if ($this->w <= 0) { |
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return; |
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} |
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return (int) $this->w; |
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} |
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/** |
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* Resolve height. |
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* @return integer|null The resolved height. |
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*/ |
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public function getHeight() |
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{ |
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if (!is_numeric($this->h)) { |
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return; |
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} |
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if ($this->h <= 0) { |
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return; |
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} |
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return (int) $this->h; |
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} |
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/** |
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* Resolve fit. |
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* @return string The resolved fit. |
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*/ |
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public function getFit() |
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{ |
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if (in_array($this->fit, ['contain', 'fill', 'max', 'stretch'], true)) { |
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return $this->fit; |
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} |
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if (preg_match('/^(crop)(-top-left|-top|-top-right|-left|-center|-right|-bottom-left|-bottom|-bottom-right|-[\d]{1,3}-[\d]{1,3})*$/', $this->fit)) { |
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return 'crop'; |
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} |
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return 'contain'; |
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} |
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/** |
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* Resolve the device pixel ratio. |
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* @return double The device pixel ratio. |
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*/ |
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public function getDpr() |
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{ |
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if (!is_numeric($this->dpr)) { |
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return 1.0; |
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} |
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if ($this->dpr < 0 or $this->dpr > 8) { |
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return 1.0; |
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} |
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return (double) $this->dpr; |
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} |
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/** |
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* Resolve missing image dimensions. |
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* @param Image $image The source image. |
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* @param integer|null $width The image width. |
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* @param integer|null $height The image height. |
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* @return integer[] The resolved width and height. |
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*/ |
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public function resolveMissingDimensions(Image $image, $width, $height) |
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{ |
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if (is_null($width) and is_null($height)) { |
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$width = $image->width(); |
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$height = $image->height(); |
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} |
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if (is_null($width)) { |
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$width = $height * ($image->width() / $image->height()); |
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} |
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if (is_null($height)) { |
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$height = $width / ($image->width() / $image->height()); |
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} |
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return [ |
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(int) $width, |
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(int) $height, |
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]; |
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} |
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/** |
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* Apply the device pixel ratio. |
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* @param integer $width The target image width. |
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* @param integer $height The target image height. |
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* @param integer $dpr The device pixel ratio. |
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* @return integer[] The modified width and height. |
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*/ |
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public function applyDpr($width, $height, $dpr) |
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{ |
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$width = $width * $dpr; |
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$height = $height * $dpr; |
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return [ |
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(int) $width, |
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(int) $height, |
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]; |
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} |
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/** |
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* Limit image size to maximum allowed image size. |
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* @param integer $width The image width. |
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* @param integer $height The image height. |
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* @return integer[] The limited width and height. |
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*/ |
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public function limitImageSize($width, $height) |
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{ |
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if ($this->maxImageSize !== null) { |
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$imageSize = $width * $height; |
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if ($imageSize > $this->maxImageSize) { |
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$width = $width / sqrt($imageSize / $this->maxImageSize); |
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$height = $height / sqrt($imageSize / $this->maxImageSize); |
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} |
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} |
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return [ |
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(int) $width, |
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(int) $height, |
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]; |
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} |
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/** |
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* Perform resize image manipulation. |
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* @param Image $image The source image. |
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* @param string $fit The fit. |
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* @param integer $width The width. |
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* @param integer $height The height. |
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* @return Image The manipulated image. |
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*/ |
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public function runResize(Image $image, $fit, $width, $height) |
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{ |
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if ($fit === 'contain') { |
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return $this->runContainResize($image, $width, $height); |
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} |
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if ($fit === 'fill') { |
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return $this->runFillResize($image, $width, $height); |
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} |
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if ($fit === 'max') { |
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return $this->runMaxResize($image, $width, $height); |
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} |
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if ($fit === 'stretch') { |
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return $this->runStretchResize($image, $width, $height); |
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} |
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if ($fit === 'crop') { |
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return $this->runCropResize($image, $width, $height); |
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} |
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return $image; |
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} |
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/** |
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* Perform contain resize image manipulation. |
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* @param Image $image The source image. |
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* @param integer $width The width. |
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* @param integer $height The height. |
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* @return Image The manipulated image. |
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*/ |
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public function runContainResize(Image $image, $width, $height) |
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{ |
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return $image->resize($width, $height, function ($constraint) { |
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$constraint->aspectRatio(); |
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}); |
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} |
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/** |
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* Perform max resize image manipulation. |
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* @param Image $image The source image. |
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* @param integer $width The width. |
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* @param integer $height The height. |
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* @return Image The manipulated image. |
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*/ |
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public function runMaxResize(Image $image, $width, $height) |
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{ |
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return $image->resize($width, $height, function ($constraint) { |
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$constraint->aspectRatio(); |
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$constraint->upsize(); |
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}); |
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} |
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/** |
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* Perform fill resize image manipulation. |
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* @param Image $image The source image. |
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* @param integer $width The width. |
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* @param integer $height The height. |
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* @return Image The manipulated image. |
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*/ |
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public function runFillResize($image, $width, $height) |
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{ |
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$image = $this->runMaxResize($image, $width, $height); |
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return $image->resizeCanvas($width, $height, 'center'); |
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} |
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/** |
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* Perform stretch resize image manipulation. |
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* @param Image $image The source image. |
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* @param integer $width The width. |
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* @param integer $height The height. |
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* @return Image The manipulated image. |
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*/ |
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public function runStretchResize(Image $image, $width, $height) |
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{ |
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return $image->resize($width, $height); |
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} |
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/** |
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* Perform crop resize image manipulation. |
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* @param Image $image The source image. |
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* @param integer $width The width. |
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* @param integer $height The height. |
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* @return Image The manipulated image. |
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*/ |
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public function runCropResize(Image $image, $width, $height) |
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{ |
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list($resize_width, $resize_height) = $this->resolveCropResizeDimensions($image, $width, $height); |
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$image->resize($resize_width, $resize_height, function ($constraint) { |
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$constraint->aspectRatio(); |
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}); |
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list($offset_x, $offset_y) = $this->resolveCropOffset($image, $width, $height); |
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return $image->crop($width, $height, $offset_x, $offset_y); |
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} |
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/** |
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* Resolve the crop resize dimensions. |
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* @param Image $image The source image. |
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* @param integer $width The width. |
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* @param integer $height The height. |
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* @return array The resize dimensions. |
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*/ |
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public function resolveCropResizeDimensions(Image $image, $width, $height) |
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{ |
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if ($height > $width * ($image->height() / $image->width())) { |
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return [$height * ($image->width() / $image->height()), $height]; |
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} |
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return [$width, $width * ($image->height() / $image->width())]; |
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} |
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/** |
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* Resolve the crop offset. |
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* @param Image $image The source image. |
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* @param integer $width The width. |
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* @param integer $height The height. |
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* @return array The crop offset. |
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*/ |
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public function resolveCropOffset(Image $image, $width, $height) |
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{ |
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list($offset_percentage_x, $offset_percentage_y) = $this->getCrop(); |
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343
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$offset_x = (int) (($image->width() * $offset_percentage_x / 100) - ($width / 2)); |
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$offset_y = (int) (($image->height() * $offset_percentage_y / 100) - ($height / 2)); |
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$max_offset_x = $image->width() - $width; |
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$max_offset_y = $image->height() - $height; |
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349
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6 |
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if ($offset_x < 0) { |
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$offset_x = 0; |
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} |
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6 |
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if ($offset_y < 0) { |
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$offset_y = 0; |
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} |
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6 |
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if ($offset_x > $max_offset_x) { |
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$offset_x = $max_offset_x; |
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} |
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361
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6 |
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if ($offset_y > $max_offset_y) { |
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$offset_y = $max_offset_y; |
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} |
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365
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6 |
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return [$offset_x, $offset_y]; |
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} |
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368
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/** |
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* Resolve crop. |
370
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* @return integer[] The resolved crop. |
371
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*/ |
372
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9 |
|
public function getCrop() |
373
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{ |
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$cropMethods = [ |
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|
9 |
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'crop-top-left' => [0, 0], |
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9 |
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'crop-top' => [50, 0], |
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9 |
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'crop-top-right' => [100, 0], |
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9 |
|
'crop-left' => [0, 50], |
379
|
9 |
|
'crop-center' => [50, 50], |
380
|
9 |
|
'crop-right' => [100, 50], |
381
|
9 |
|
'crop-bottom-left' => [0, 100], |
382
|
9 |
|
'crop-bottom' => [50, 100], |
383
|
9 |
|
'crop-bottom-right' => [100, 100], |
384
|
9 |
|
]; |
385
|
|
|
|
386
|
9 |
|
if (array_key_exists($this->fit, $cropMethods)) { |
387
|
3 |
|
return $cropMethods[$this->fit]; |
388
|
|
|
} |
389
|
|
|
|
390
|
9 |
|
if (preg_match('/^crop-([\d]{1,3})-([\d]{1,3})*$/', $this->fit, $matches)) { |
391
|
3 |
|
if ($matches[1] > 100 or $matches[2] > 100) { |
392
|
3 |
|
return [50, 50]; |
393
|
|
|
} |
394
|
|
|
|
395
|
|
|
return [ |
396
|
3 |
|
(int) $matches[1], |
397
|
3 |
|
(int) $matches[2], |
398
|
3 |
|
]; |
399
|
|
|
} |
400
|
|
|
|
401
|
9 |
|
return [50, 50]; |
402
|
|
|
} |
403
|
|
|
} |
404
|
|
|
|