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<?php |
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namespace Jackal\ImageMerge\Command; |
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use Jackal\ImageMerge\Builder\ImageBuilder; |
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use Jackal\ImageMerge\Command\Options\MultiCoordinateCommandOption; |
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use Jackal\ImageMerge\Exception\InvalidColorException; |
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use Jackal\ImageMerge\Model\Color; |
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use Jackal\ImageMerge\Model\Image; |
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use Jackal\ImageMerge\Utils\ColorUtils; |
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/** |
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* Class CropPolygonCommand |
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* @package Jackal\ImageMerge\Command |
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*/ |
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class CropPolygonCommand extends AbstractCommand |
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{ |
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/** |
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* CropPolygonCommand constructor. |
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* @param MultiCoordinateCommandOption|null $options |
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*/ |
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public function __construct(MultiCoordinateCommandOption $options = null) |
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{ |
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parent::__construct($options); |
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} |
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/** |
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* @param Image $image |
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* @return Image |
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* @throws InvalidColorException |
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*/ |
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public function execute(Image $image) |
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{ |
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/** @var MultiCoordinateCommandOption $options */ |
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$options = $this->options; |
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$builder = new ImageBuilder($image); |
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// Setup the merge image from the source image with scaling |
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$mergeImage = ImageCreateTrueColor($image->getWidth(), $image->getHeight()); |
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imagecopyresampled($mergeImage, $image->getResource(), 0, 0, 0, 0, $image->getWidth(), $image->getHeight(), imagesx($image->getResource()), imagesy($image->getResource())); |
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$maskPolygon = imagecreatetruecolor($image->getWidth(), $image->getHeight()); |
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$borderColor = ColorUtils::colorIdentifier($maskPolygon, new Color('01feff')); |
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imagefill($maskPolygon, 0, 0, $borderColor); |
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// Add the transparent polygon mask |
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$transparency = imagecolortransparent($maskPolygon, ColorUtils::colorIdentifier($maskPolygon, new Color('ff01fe'))); |
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imagesavealpha($maskPolygon, true); |
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imagefilledpolygon($maskPolygon, $options->toArray(), $options->countPoints(), $transparency); |
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// Apply the mask |
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imagesavealpha($mergeImage, true); |
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imagecopymerge($mergeImage, $maskPolygon, 0, 0, 0, 0, $image->getWidth(), $image->getHeight(), 100); |
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// Create the final image |
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$destImage = ImageCreateTrueColor($image->getWidth(), $image->getHeight()); |
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imagesavealpha($destImage, true); |
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imagealphablending($destImage, true); |
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imagecopy($destImage, $mergeImage, |
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0, 0, |
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0, 0, |
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$image->getWidth(), $image->getHeight()); |
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// Make the the border transparent (we're assuming there's a 2px buffer on all sides) |
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$borderTransparency = ColorUtils::colorIdentifier($destImage, new Color('ff01fe'), true); |
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imagesavealpha($destImage, true); |
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imagealphablending($destImage, true); |
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imagefill($destImage, 0, 0, $borderTransparency); |
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$image->assignResource($destImage); |
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$builder->crop($options->getMinX(), $options->getMinY(), $options->getCropDimention()->getWidth(), $options->getCropDimention()->getHeight()); |
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return $image; |
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} |
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} |
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