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class Desaturate in Drupal 8

Same name and namespace in other branches
  1. 9 core/modules/system/src/Plugin/ImageToolkit/Operation/gd/Desaturate.php \Drupal\system\Plugin\ImageToolkit\Operation\gd\Desaturate
  2. 10 core/modules/system/src/Plugin/ImageToolkit/Operation/gd/Desaturate.php \Drupal\system\Plugin\ImageToolkit\Operation\gd\Desaturate

Defines GD2 Desaturate operation.

Plugin annotation


@ImageToolkitOperation(
  id = "gd_desaturate",
  toolkit = "gd",
  operation = "desaturate",
  label = @Translation("Desaturate"),
  description = @Translation("Converts an image to grayscale.")
)

Hierarchy

Expanded class hierarchy of Desaturate

3 string references to 'Desaturate'
ImageTest::testDesaturate in core/tests/Drupal/Tests/Core/Image/ImageTest.php
Tests \Drupal\Core\Image\Image::desaturate().
UpdatePathRC1TestBaseFilledTest::testUpdatedSite in core/modules/system/tests/src/Functional/Update/UpdatePathRC1TestBaseFilledTest.php
Tests that the content and configuration were properly updated.
UpdatePathTestBaseFilledTest::testUpdatedSite in core/modules/system/tests/src/Functional/UpdateSystem/UpdatePathTestBaseFilledTest.php
Tests that the content and configuration were properly updated.

File

core/modules/system/src/Plugin/ImageToolkit/Operation/gd/Desaturate.php, line 16

Namespace

Drupal\system\Plugin\ImageToolkit\Operation\gd
View source
class Desaturate extends GDImageToolkitOperationBase {

  /**
   * {@inheritdoc}
   */
  protected function arguments() {

    // This operation does not use any parameters.
    return [];
  }

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

    // PHP installations using non-bundled GD do not have imagefilter.
    if (!function_exists('imagefilter')) {
      $this->logger
        ->notice("The image '@file' could not be desaturated because the imagefilter() function is not available in this PHP installation.", [
        '@file' => $this
          ->getToolkit()
          ->getSource(),
      ]);
      return FALSE;
    }
    return imagefilter($this
      ->getToolkit()
      ->getResource(), IMG_FILTER_GRAYSCALE);
  }

}

Members

Namesort descending Modifiers Type Description Overrides
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
Desaturate::arguments protected function Returns the definition of the operation arguments. Overrides ImageToolkitOperationBase::arguments
Desaturate::execute protected function Performs the actual manipulation on the image. Overrides ImageToolkitOperationBase::execute
GDImageToolkitOperationBase::getToolkit protected function The correctly typed image toolkit for GD operations. Overrides ImageToolkitOperationBase::getToolkit
ImageToolkitOperationBase::$logger protected property A logger instance.
ImageToolkitOperationBase::$toolkit protected property The image toolkit.
ImageToolkitOperationBase::apply final public function Applies a toolkit specific operation to an image. Overrides ImageToolkitOperationInterface::apply
ImageToolkitOperationBase::prepareArguments protected function Checks if required arguments are passed in and adds defaults for non passed in optional arguments.
ImageToolkitOperationBase::validateArguments protected function Validates the arguments. 6
ImageToolkitOperationBase::__construct public function Constructs an image toolkit operation plugin. 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.