ContrastTrait.php in Image Effects 8

Namespace

Drupal\image_effects\Plugin\ImageToolkit\Operation

File

src/Plugin/ImageToolkit/Operation/ContrastTrait.php

<?php

namespace Drupal\image_effects\Plugin\ImageToolkit\Operation;


/**
 * Base trait for image_effects Contrast operations.
 */
trait ContrastTrait {

  /**
   * {@inheritdoc}
   */
  protected function arguments() {
    return [
      'level' => [
        'description' => 'The contrast level.',
      ],
    ];
  }

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

    // Assure contrast level is valid.
    if (!is_numeric($arguments['level']) || !is_int($arguments['level'] + 5) || $arguments['level'] < -100 || $arguments['level'] > 100) {
      throw new \InvalidArgumentException("Invalid level ('{$arguments['level']}') specified for the image 'contrast' operation");
    }
    return $arguments;
  }

}

Traits

Name	Description
ContrastTrait	Base trait for image_effects Contrast operations.