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class ImageCorner in Image effect kit 8

Defines IEK - Corner operation.

Plugin annotation


@ImageToolkitOperation(
  id = "gd_iek_image_corner",
  toolkit = "gd",
  operation = "iek_image_corner",
  label = @Translation("IEK - Corner"),
  description = @Translation("Add rounded corner to an image.")
)

Hierarchy

Expanded class hierarchy of ImageCorner

File

src/Plugin/ImageToolkit/Operation/gd/ImageCorner.php, line 23
Contains \Drupal\iek\Plugin\ImageToolkit\Operation\gd\ImageCorner.

Namespace

Drupal\iek\Plugin\ImageToolkit\Operation\gd
View source 
class ImageCorner extends GDImageToolkitOperationBase {

  /**
   * {@inheritdoc}
   */
  protected function arguments() {
    return [
      'radius' => [
        'description' => 'Radius',
      ],
    ];
  }

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

    // Fail when radius is negative.
    if ((int) $arguments['radius'] < 0) {
      throw new \InvalidArgumentException("Invalid radius ('{$arguments['radius']}') specified for the image 'iek_image_corner' operation");
    }
    return $arguments;
  }

  /**
   * {@inheritdoc}
   */
  protected function execute(array $arguments = []) {
    $data = $arguments;
    $width = $this
      ->getToolkit()
      ->getWidth();
    $height = $this
      ->getToolkit()
      ->getHeight();
    $radius = $data['radius'];

    // Finds unique color.
    do {
      $r = rand(0, 255);
      $g = rand(0, 255);
      $b = rand(0, 255);
    } while (imagecolorexact($this
      ->getToolkit()
      ->getResource(), $r, $g, $b) < 0);
    $new_width = $width;
    $new_height = $height;
    $img = imagecreatetruecolor($new_width, $new_height);
    $alphacolor = imagecolorallocatealpha($img, $r, $g, $b, 127);
    imagealphablending($img, FALSE);
    imagesavealpha($img, TRUE);
    imagefilledrectangle($img, 0, 0, $new_width, $new_height, $alphacolor);
    imagefill($img, 0, 0, $alphacolor);
    imagecopyresampled($img, $this
      ->getToolkit()
      ->getResource(), 0, 0, 0, 0, $new_width, $new_height, $width, $height);
    imagearc($img, $radius - 1, $radius - 1, $radius * 2, $radius * 2, 180, 270, $alphacolor);
    imagefilltoborder($img, 0, 0, $alphacolor, $alphacolor);
    imagearc($img, $new_width - $radius, $radius - 1, $radius * 2, $radius * 2, 270, 0, $alphacolor);
    imagefilltoborder($img, $new_width - 1, 0, $alphacolor, $alphacolor);
    imagearc($img, $radius - 1, $new_height - $radius, $radius * 2, $radius * 2, 90, 180, $alphacolor);
    imagefilltoborder($img, 0, $new_height - 1, $alphacolor, $alphacolor);
    imagearc($img, $new_width - $radius, $new_height - $radius, $radius * 2, $radius * 2, 0, 90, $alphacolor);
    imagefilltoborder($img, $new_width - 1, $new_height - 1, $alphacolor, $alphacolor);
    imagealphablending($img, TRUE);
    imagecolortransparent($img, $alphacolor);

    // Resizes image down.
    $dst = imagecreatetruecolor($width, $height);
    imagealphablending($dst, FALSE);
    imagesavealpha($dst, TRUE);
    imagefilledrectangle($dst, 0, 0, $width, $height, $alphacolor);
    imagecopyresampled($dst, $img, 0, 0, 0, 0, $width, $height, $new_width, $new_height);
    imagedestroy($this
      ->getToolkit()
      ->getResource());

    // Update image object.
    $this
      ->getToolkit()
      ->setResource($dst);
    return TRUE;
  }

}

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
GDImageToolkitOperationBase::getToolkit protected function The correctly typed image toolkit for GD operations. Overrides ImageToolkitOperationBase::getToolkit
ImageCorner::arguments protected function Returns the definition of the operation arguments. Overrides ImageToolkitOperationBase::arguments
ImageCorner::execute protected function Performs the actual manipulation on the image. Overrides ImageToolkitOperationBase::execute
ImageCorner::validateArguments protected function Validates the arguments. Overrides ImageToolkitOperationBase::validateArguments
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.