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class Convert in Drupal 8

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

Defines GD2 convert operation.

Plugin annotation


@ImageToolkitOperation(
  id = "gd_convert",
  toolkit = "gd",
  operation = "convert",
  label = @Translation("Convert"),
  description = @Translation("Instructs the toolkit to save the image with a specified extension.")
)

Hierarchy

Expanded class hierarchy of Convert

2 string references to 'Convert'
image.schema.yml in core/modules/image/config/schema/image.schema.yml
core/modules/image/config/schema/image.schema.yml
ImageTest::testConvert in core/tests/Drupal/Tests/Core/Image/ImageTest.php
Tests \Drupal\Core\Image\Image::convert().

File

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

Namespace

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

  /**
   * {@inheritdoc}
   */
  protected function arguments() {
    return [
      'extension' => [
        'description' => 'The new extension of the converted image',
      ],
    ];
  }

  /**
   * {@inheritdoc}
   */
  protected function validateArguments(array $arguments) {
    if (!in_array($arguments['extension'], $this
      ->getToolkit()
      ->getSupportedExtensions())) {
      throw new \InvalidArgumentException("Invalid extension ({$arguments['extension']}) specified for the image 'convert' operation");
    }
    return $arguments;
  }

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

    // Create a new resource of the required dimensions and format, and copy
    // the original resource on it with resampling. Destroy the original
    // resource upon success.
    $width = $this
      ->getToolkit()
      ->getWidth();
    $height = $this
      ->getToolkit()
      ->getHeight();
    $original_resource = $this
      ->getToolkit()
      ->getResource();
    $original_type = $this
      ->getToolkit()
      ->getType();
    $data = [
      'width' => $width,
      'height' => $height,
      'extension' => $arguments['extension'],
      'transparent_color' => $this
        ->getToolkit()
        ->getTransparentColor(),
      'is_temp' => TRUE,
    ];
    if ($this
      ->getToolkit()
      ->apply('create_new', $data)) {
      if (imagecopyresampled($this
        ->getToolkit()
        ->getResource(), $original_resource, 0, 0, 0, 0, $width, $height, $width, $height)) {
        imagedestroy($original_resource);
        return TRUE;
      }

      // In case of error, reset resource and type to as it was.
      $this
        ->getToolkit()
        ->setResource($original_resource);
      $this
        ->getToolkit()
        ->setType($original_type);
    }
    return FALSE;
  }

}

Members

Namesort descending Modifiers Type Description Overrides
Convert::arguments protected function Returns the definition of the operation arguments. Overrides ImageToolkitOperationBase::arguments
Convert::execute protected function Performs the actual manipulation on the image. Overrides ImageToolkitOperationBase::execute
Convert::validateArguments protected function Validates the arguments. Overrides ImageToolkitOperationBase::validateArguments
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
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.