Resize.php in ImageMagick 8.3

Namespace

Drupal\imagemagick\Plugin\ImageToolkit\Operation\imagemagick

File

src/Plugin/ImageToolkit/Operation/imagemagick/Resize.php

<?php

namespace Drupal\imagemagick\Plugin\ImageToolkit\Operation\imagemagick;


/**
 * Defines imagemagick resize operation.
 *
 * @ImageToolkitOperation(
 *   id = "imagemagick_resize",
 *   toolkit = "imagemagick",
 *   operation = "resize",
 *   label = @Translation("Resize"),
 *   description = @Translation("Resizes an image to the given dimensions (ignoring aspect ratio).")
 * )
 */
class Resize extends ImagemagickImageToolkitOperationBase {

  /**
   * {@inheritdoc}
   */
  protected function arguments() {
    return [
      'width' => [
        'description' => 'The new width of the resized image, in pixels',
      ],
      'height' => [
        'description' => 'The new height of the resized image, in pixels',
      ],
      'filter' => [
        'description' => 'An optional filter to apply for the resize',
        'required' => FALSE,
        'default' => '',
      ],
    ];
  }

  /**
   * {@inheritdoc}
   */
  protected function validateArguments(array $arguments) {

    // Assure integers for all arguments.
    $arguments['width'] = (int) round($arguments['width']);
    $arguments['height'] = (int) round($arguments['height']);

    // Fail when width or height are 0 or negative.
    if ($arguments['width'] <= 0) {
      throw new \InvalidArgumentException("Invalid width ({$arguments['width']}) specified for the image 'resize' operation");
    }
    if ($arguments['height'] <= 0) {
      throw new \InvalidArgumentException("Invalid height ({$arguments['height']}) specified for the image 'resize' operation");
    }
    return $arguments;
  }

  /**
   * {@inheritdoc}
   */
  protected function execute(array $arguments = []) {
    if (!empty($arguments['filter'])) {
      $this
        ->addArgument('-filter ' . $arguments['filter']);
    }
    $this
      ->addArgument('-resize ' . $arguments['width'] . 'x' . $arguments['height'] . '!');
    $this
      ->getToolkit()
      ->setWidth($arguments['width'])
      ->setHeight($arguments['height']);
    return TRUE;
  }

}

Classes

Name	Description
Resize	Defines imagemagick resize operation.