ScaleAndCropImageEffect.php

<?php

namespace Drupal\image\Plugin\ImageEffect;

use Drupal\Core\Image\ImageInterface;

/**
 * Scales and crops an image resource.
 *
 * @ImageEffect(
 *   id = "image_scale_and_crop",
 *   label = @Translation("Scale and crop"),
 *   description = @Translation("Scale and crop will maintain the aspect-ratio of the original image, then crop the larger dimension. This is most useful for creating perfectly square thumbnails without stretching the image.")
 * )
 */
class ScaleAndCropImageEffect extends CropImageEffect {
    
    /**
     * {@inheritdoc}
     */
    public function applyEffect(ImageInterface $image) {
        $width = $this->configuration['width'];
        $height = $this->configuration['height'];
        $scale = max($width / $image->getWidth(), $height / $image->getHeight());
        list($x, $y) = explode('-', $this->configuration['anchor']);
        $x = image_filter_keyword($x, $image->getWidth() * $scale, $width);
        $y = image_filter_keyword($y, $image->getHeight() * $scale, $height);
        if (!$image->apply('scale_and_crop', [
            'x' => $x,
            'y' => $y,
            'width' => $width,
            'height' => $height,
        ])) {
            $this->logger
                ->error('Image scale and crop failed using the %toolkit toolkit on %path (%mimetype, %dimensions)', [
                '%toolkit' => $image->getToolkitId(),
                '%path' => $image->getSource(),
                '%mimetype' => $image->getMimeType(),
                '%dimensions' => $image->getWidth() . 'x' . $image->getHeight(),
            ]);
            return FALSE;
        }
        return TRUE;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getSummary() {
        $summary = [
            '#theme' => 'image_scale_and_crop_summary',
            '#data' => $this->configuration,
        ];
        $summary += parent::getSummary();
        return $summary;
    }

}