SetTransparentColorImageEffect.php in Image Effects 8.2

Namespace

Drupal\image_effects\Plugin\ImageEffect

File

src/Plugin/ImageEffect/SetTransparentColorImageEffect.php

<?php

namespace Drupal\image_effects\Plugin\ImageEffect;

use Drupal\Core\Image\ImageInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\image\ConfigurableImageEffectBase;

/**
 * Adjust image contrast.
 *
 * @ImageEffect(
 *   id = "image_effects_set_transparent_color",
 *   label = @Translation("Set transparent color"),
 *   description = @Translation("Set the image transparent color for GIF images.")
 * )
 */
class SetTransparentColorImageEffect extends ConfigurableImageEffectBase implements ContainerFactoryPluginInterface {

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [
      'transparent_color' => NULL,
    ] + parent::defaultConfiguration();
  }

  /**
   * {@inheritdoc}
   */
  public function getSummary() {
    $data = $this->configuration;
    if ($data['transparent_color']) {
      $data['color_info'] = [
        '#theme' => 'image_effects_color_detail',
        '#color' => $data['transparent_color'],
        '#border' => TRUE,
        '#border_color' => 'matchLuma',
      ];
    }
    return [
      '#theme' => 'image_effects_set_transparent_color_summary',
      '#data' => $data,
    ] + parent::getSummary();
  }

  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
    $form['transparent_color'] = [
      '#type' => 'image_effects_color',
      '#description' => $this
        ->t('Select a color to be used for transparency of GIF image files. Leave the checkbox ticked to use the color of the image being processed, if it has one.'),
      '#allow_null' => TRUE,
      '#checkbox_title' => $this
        ->t('Use source image transparent color'),
      '#allow_opacity' => FALSE,
      '#default_value' => $this->configuration['transparent_color'],
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
    parent::submitConfigurationForm($form, $form_state);
    $this->configuration['transparent_color'] = $form_state
      ->getValue('transparent_color');
  }

  /**
   * {@inheritdoc}
   */
  public function applyEffect(ImageInterface $image) {
    return $image
      ->apply('set_gif_transparent_color', [
      'transparent_color' => $this->configuration['transparent_color'],
    ]);
  }

}

Classes

Name	Description
SetTransparentColorImageEffect	Adjust image contrast.