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class GaussianBlur in Image Effects 8.2

Same name in this branch
  1. 8.2 src/Plugin/ImageToolkit/Operation/gd/GaussianBlur.php \Drupal\image_effects\Plugin\ImageToolkit\Operation\gd\GaussianBlur
  2. 8.2 src/Plugin/ImageToolkit/Operation/imagemagick/GaussianBlur.php \Drupal\image_effects\Plugin\ImageToolkit\Operation\imagemagick\GaussianBlur
Same name and namespace in other branches
  1. 8.3 src/Plugin/ImageToolkit/Operation/gd/GaussianBlur.php \Drupal\image_effects\Plugin\ImageToolkit\Operation\gd\GaussianBlur
  2. 8 src/Plugin/ImageToolkit/Operation/gd/GaussianBlur.php \Drupal\image_effects\Plugin\ImageToolkit\Operation\gd\GaussianBlur

Defines GD Gaussian Blur operation.

Plugin annotation


@ImageToolkitOperation(
  id = "image_effects_gd_gaussian_blur",
  toolkit = "gd",
  operation = "gaussian_blur",
  label = @Translation("Gaussian blur"),
  description = @Translation("Blur the image with a Gaussian operator.")
)

Hierarchy

Expanded class hierarchy of GaussianBlur

File

src/Plugin/ImageToolkit/Operation/gd/GaussianBlur.php, line 19

Namespace

Drupal\image_effects\Plugin\ImageToolkit\Operation\gd
View source
class GaussianBlur extends GDImageToolkitOperationBase {
  use GaussianBlurTrait;
  use GDOperationTrait;

  /**
   * {@inheritdoc}
   */
  protected function execute(array $arguments) {
    $blur = $this
      ->imageCopyGaussianBlurred($this
      ->getToolkit()
      ->getResource(), $arguments['radius'], $arguments['sigma']);
    if (is_resource($blur)) {
      $original_resource = $this
        ->getToolkit()
        ->getResource();
      $this
        ->getToolkit()
        ->setResource($blur);
      imagedestroy($original_resource);
      return TRUE;
    }
    return FALSE;
  }

}

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
GaussianBlur::execute protected function Performs the actual manipulation on the image. Overrides ImageToolkitOperationBase::execute
GaussianBlurTrait::arguments protected function
GaussianBlurTrait::validateArguments protected function
GDImageToolkitOperationBase::getToolkit protected function The correctly typed image toolkit for GD operations. Overrides ImageToolkitOperationBase::getToolkit
GDOperationTrait::allocateColorFromRgba protected function Allocates a GD color from an RGBA hexadecimal.
GDOperationTrait::filterOpacity protected function Change overall image transparency level.
GDOperationTrait::getAreaEntropy protected function Computes the entropy of the area of an image.
GDOperationTrait::getEntropyCropByGridding protected function Computes the entropy crop of an image, using recursive gridding.
GDOperationTrait::getEntropyCropBySlicing protected function Computes the entropy crop of an image, using slices.
GDOperationTrait::getRectangleCorners protected function Convert a rectangle to a sequence of point coordinates.
GDOperationTrait::hexToRgba protected function Convert a RGBA hex to its RGBA integer GD components.
GDOperationTrait::imageCopyGaussianBlurred protected function Gets a copy of the source with the Gaussian Blur algorithm applied.
GDOperationTrait::imageCopyMergeAlpha protected function Copy and merge part of an image, preserving alpha.
GDOperationTrait::imagettfbboxWrapper protected function Wrapper of imagettfbbox().
GDOperationTrait::imagettftextWrapper protected function Wrapper of imagettftext().
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::__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.