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class ConvolutionSharpenImageEffect in Image Effects 8

Same name and namespace in other branches
  1. 8.3 src/Plugin/ImageEffect/ConvolutionSharpenImageEffect.php \Drupal\image_effects\Plugin\ImageEffect\ConvolutionSharpenImageEffect
  2. 8.2 src/Plugin/ImageEffect/ConvolutionSharpenImageEffect.php \Drupal\image_effects\Plugin\ImageEffect\ConvolutionSharpenImageEffect

Sharpen image using convolution.

Plugin annotation


@ImageEffect(
  id = "image_effects_convolution_sharpen",
  label = @Translation("Sharpen"),
  description = @Translation("Sharpen image using convolution.")
)

Hierarchy

Expanded class hierarchy of ConvolutionSharpenImageEffect

File

src/Plugin/ImageEffect/ConvolutionSharpenImageEffect.php, line 19

Namespace

Drupal\image_effects\Plugin\ImageEffect
View source
class ConvolutionSharpenImageEffect extends ConfigurableImageEffectBase implements ContainerFactoryPluginInterface {

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [
      'level' => 10,
    ] + parent::defaultConfiguration();
  }

  /**
   * {@inheritdoc}
   */
  public function getSummary() {
    return [
      '#theme' => 'image_effects_convolution_sharpen_summary',
      '#data' => $this->configuration,
    ] + parent::getSummary();
  }

  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
    $form['level'] = [
      '#type' => 'number',
      '#title' => t('Sharpen level'),
      '#description' => t('Typically 1 - 50.'),
      '#default_value' => $this->configuration['level'],
      '#required' => TRUE,
      '#allow_negative' => FALSE,
    ];
    return $form;
  }

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

  /**
   * {@inheritdoc}
   */
  public function applyEffect(ImageInterface $image) {
    $sharpenlevel = $this->configuration['level'] / 100;
    $kernel = [
      [
        -$sharpenlevel,
        -$sharpenlevel,
        -$sharpenlevel,
      ],
      [
        -$sharpenlevel,
        8 * $sharpenlevel + 1,
        -$sharpenlevel,
      ],
      [
        -$sharpenlevel,
        -$sharpenlevel,
        -$sharpenlevel,
      ],
    ];
    return $image
      ->apply('convolution', [
      'kernel' => $kernel,
      'divisor' => 1,
      'offset' => 0,
    ]);
  }

}

Members

Namesort descending Modifiers Type Description Overrides
ConfigurableImageEffectBase::validateConfigurationForm public function Form validation handler. Overrides PluginFormInterface::validateConfigurationForm 2
ConvolutionSharpenImageEffect::applyEffect public function Applies an image effect to the image object. Overrides ImageEffectInterface::applyEffect
ConvolutionSharpenImageEffect::buildConfigurationForm public function Form constructor. Overrides PluginFormInterface::buildConfigurationForm
ConvolutionSharpenImageEffect::defaultConfiguration public function Gets default configuration for this plugin. Overrides ImageEffectBase::defaultConfiguration
ConvolutionSharpenImageEffect::getSummary public function Returns a render array summarizing the configuration of the image effect. Overrides ImageEffectBase::getSummary
ConvolutionSharpenImageEffect::submitConfigurationForm public function Form submission handler. Overrides ConfigurableImageEffectBase::submitConfigurationForm
DependencySerializationTrait::$_entityStorages protected property An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function 1
DependencySerializationTrait::__wakeup public function 2
ImageEffectBase::$logger protected property A logger instance.
ImageEffectBase::$uuid protected property The image effect ID.
ImageEffectBase::$weight protected property The weight of the image effect.
ImageEffectBase::calculateDependencies public function Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies
ImageEffectBase::create public static function Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create
ImageEffectBase::getConfiguration public function Gets this plugin's configuration. Overrides ConfigurableInterface::getConfiguration
ImageEffectBase::getDerivativeExtension public function Returns the extension of the derivative after applying this image effect. Overrides ImageEffectInterface::getDerivativeExtension 1
ImageEffectBase::getUuid public function Returns the unique ID representing the image effect. Overrides ImageEffectInterface::getUuid
ImageEffectBase::getWeight public function Returns the weight of the image effect. Overrides ImageEffectInterface::getWeight
ImageEffectBase::label public function Returns the image effect label. Overrides ImageEffectInterface::label
ImageEffectBase::setConfiguration public function Sets the configuration for this plugin instance. Overrides ConfigurableInterface::setConfiguration
ImageEffectBase::setWeight public function Sets the weight for this image effect. Overrides ImageEffectInterface::setWeight
ImageEffectBase::transformDimensions public function Determines the dimensions of the styled image. Overrides ImageEffectInterface::transformDimensions 4
ImageEffectBase::__construct public function Constructs a \Drupal\Component\Plugin\PluginBase object. Overrides PluginBase::__construct
MessengerTrait::$messenger protected property The messenger. 29
MessengerTrait::messenger public function Gets the messenger. 29
MessengerTrait::setMessenger public function Sets the messenger.
PluginBase::$configuration protected property Configuration information passed into the plugin. 1
PluginBase::$pluginDefinition protected property The plugin implementation definition. 1
PluginBase::$pluginId protected property The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR constant A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId public function Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId public function Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition public function Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition 3
PluginBase::getPluginId public function Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable public function Determines if the plugin is configurable.
StringTranslationTrait::$stringTranslation protected property The string translation service. 1
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use. 2
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.