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trait ContrastTrait in Image Effects 8.2

Same name and namespace in other branches
  1. 8.3 src/Plugin/ImageToolkit/Operation/ContrastTrait.php \Drupal\image_effects\Plugin\ImageToolkit\Operation\ContrastTrait
  2. 8 src/Plugin/ImageToolkit/Operation/ContrastTrait.php \Drupal\image_effects\Plugin\ImageToolkit\Operation\ContrastTrait

Base trait for image_effects Contrast operations.

Hierarchy

  • trait \Drupal\image_effects\Plugin\ImageToolkit\Operation\ContrastTrait
2 files declare their use of ContrastTrait
Contrast.php in src/Plugin/ImageToolkit/Operation/gd/Contrast.php
Contrast.php in src/Plugin/ImageToolkit/Operation/imagemagick/Contrast.php

File

src/Plugin/ImageToolkit/Operation/ContrastTrait.php, line 8

Namespace

Drupal\image_effects\Plugin\ImageToolkit\Operation
View source 
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;
  }

}

Members

Namesort descending Modifiers Type Description Overrides
ContrastTrait::arguments protected function
ContrastTrait::validateArguments protected function