class Resize

Same name in other branches
  1. 9 core/modules/system/src/Plugin/ImageToolkit/Operation/gd/Resize.php \Drupal\system\Plugin\ImageToolkit\Operation\gd\Resize
  2. 10 core/modules/system/src/Plugin/ImageToolkit/Operation/gd/Resize.php \Drupal\system\Plugin\ImageToolkit\Operation\gd\Resize
  3. 11.x core/modules/system/src/Plugin/ImageToolkit/Operation/gd/Resize.php \Drupal\system\Plugin\ImageToolkit\Operation\gd\Resize

Defines GD2 resize operation.

Plugin annotation


@ImageToolkitOperation(
  id = "gd_resize",
  toolkit = "gd",
  operation = "resize",
  label = @Translation("Resize"),
  description = @Translation("Resizes an image to the given dimensions (ignoring aspect ratio).")
)

Hierarchy

Expanded class hierarchy of Resize

7 string references to 'Resize'
ImageEffectsTest::testResizeEffect in core/modules/image/tests/src/Functional/ImageEffectsTest.php
Test the image_resize_effect() function.
ImageTest::testFloatResize in core/tests/Drupal/Tests/Core/Image/ImageTest.php
Tests \Drupal\Core\Image\Image::resize().
ImageTest::testResize in core/tests/Drupal/Tests/Core/Image/ImageTest.php
Tests \Drupal\Core\Image\Image::resize().
ScaleAndCrop::execute in core/modules/system/src/Plugin/ImageToolkit/Operation/gd/ScaleAndCrop.php
Performs the actual manipulation on the image.
ToolkitGdTest::testManipulations in core/tests/Drupal/KernelTests/Core/Image/ToolkitGdTest.php
Since PHP can't visually check that our images have been manipulated properly, build a list of expected color values for each of the corners and the expected height and widths for the final images.

... See full list

File

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

Namespace

Drupal\system\Plugin\ImageToolkit\Operation\gd
View source 
class Resize extends GDImageToolkitOperationBase {
    
    /**
     * {@inheritdoc}
     */
    protected function arguments() {
        return [
            'width' => [
                'description' => 'The new width of the resized image, in pixels',
            ],
            'height' => [
                'description' => 'The new height of the resized image, in pixels',
            ],
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    protected function validateArguments(array $arguments) {
        // Assure integers for all arguments.
        $arguments['width'] = (int) round($arguments['width']);
        $arguments['height'] = (int) round($arguments['height']);
        // Fail when width or height are 0 or negative.
        if ($arguments['width'] <= 0) {
            throw new \InvalidArgumentException("Invalid width ('{$arguments['width']}') specified for the image 'resize' operation");
        }
        if ($arguments['height'] <= 0) {
            throw new \InvalidArgumentException("Invalid height ('{$arguments['height']}') specified for the image 'resize' operation");
        }
        return $arguments;
    }
    
    /**
     * {@inheritdoc}
     */
    protected function execute(array $arguments = []) {
        // Create a new resource of the required dimensions, and copy and resize
        // the original resource on it with resampling. Destroy the original
        // resource upon success.
        $original_resource = $this->getToolkit()
            ->getResource();
        $data = [
            'width' => $arguments['width'],
            'height' => $arguments['height'],
            'extension' => image_type_to_extension($this->getToolkit()
                ->getType(), FALSE),
            '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, $arguments['width'], $arguments['height'], imagesx($original_resource), imagesy($original_resource))) {
                imagedestroy($original_resource);
                return TRUE;
            }
            else {
                // In case of failure, destroy the temporary resource and restore
                // the original one.
                imagedestroy($this->getToolkit()
                    ->getResource());
                $this->getToolkit()
                    ->setResource($original_resource);
            }
        }
        return FALSE;
    }

}

Members

Title Modifiers Object type Summary Overriden Title Overrides
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.
PluginInspectionInterface::getPluginDefinition public function Gets the definition of the plugin implementation. 6
PluginInspectionInterface::getPluginId public function Gets the plugin_id of the plugin instance. 2
Resize::arguments protected function Returns the definition of the operation arguments. Overrides ImageToolkitOperationBase::arguments 1
Resize::execute protected function Performs the actual manipulation on the image. Overrides ImageToolkitOperationBase::execute 1
Resize::validateArguments protected function Validates the arguments. Overrides ImageToolkitOperationBase::validateArguments 1

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