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<?php |
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declare(strict_types=1); |
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namespace tkanstantsin\fileupload\formatter\adapter; |
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use Imagine\Image\Palette\RGB as RGBPalette; |
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use Imagine\Image\Point; |
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use tkanstantsin\fileupload\config\InvalidConfigException; |
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use tkanstantsin\fileupload\model\IFile; |
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/** |
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* Class BackgroundFixer replaces transparent background in PNG image that |
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* would be converted in JPG |
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*/ |
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class BackgroundFixer extends AbstractImageAdapter |
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{ |
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public const DEFAULT_EXTENSION = 'jpg'; |
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/** |
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* Used for jpg images which may be png originally and have transparency. |
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* @var string |
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*/ |
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public $transparentBackground = 'ffffff'; |
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/** |
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* @inheritdoc |
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* @throws \Imagine\Exception\RuntimeException |
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* @throws \tkanstantsin\fileupload\config\InvalidConfigException |
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*/ |
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public function init(): void |
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{ |
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parent::init(); |
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if ($this->transparentBackground === null) { |
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throw new InvalidConfigException('Background color not defined'); |
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} |
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} |
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/** |
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* Applies filters or something to content and return it |
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* |
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* @param IFile $file |
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* @param $content |
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* |
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* @return mixed |
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* @throws \Imagine\Exception\OutOfBoundsException |
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* @throws \UnexpectedValueException |
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* @throws \Imagine\Exception\InvalidArgumentException |
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* @throws \Imagine\Exception\RuntimeException |
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* @throws \ImageOptimizer\Exception\Exception |
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*/ |
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public function exec(IFile $file, $content) |
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{ |
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$image = $this->imagine->load($content); |
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if (!\in_array(mb_strtolower($file->getExtension() ?? self::DEFAULT_EXTENSION), ['jpg', 'jpeg'], true)) { |
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return $image; |
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} |
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$palette = new RGBPalette(); |
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$backgroundColor = $palette->color($this->transparentBackground, 100); |
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$background = $this->imagine->create($image->getSize(), $backgroundColor); |
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return $background->paste($image, new Point(0, 0)); |
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} |
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} |
t-kanstantsin /
fileupload
