class ScaleAndCrop

Same name in other branches
  1. 9 core/modules/system/src/Plugin/ImageToolkit/Operation/gd/ScaleAndCrop.php \Drupal\system\Plugin\ImageToolkit\Operation\gd\ScaleAndCrop
  2. 8.9.x core/modules/system/src/Plugin/ImageToolkit/Operation/gd/ScaleAndCrop.php \Drupal\system\Plugin\ImageToolkit\Operation\gd\ScaleAndCrop
  3. 11.x core/modules/system/src/Plugin/ImageToolkit/Operation/gd/ScaleAndCrop.php \Drupal\system\Plugin\ImageToolkit\Operation\gd\ScaleAndCrop

Defines GD2 Scale and crop operation.

Hierarchy

Expanded class hierarchy of ScaleAndCrop

3 string references to 'ScaleAndCrop'
ImageTest::testScaleAndCropFails in core/tests/Drupal/Tests/Core/Image/ImageTest.php
Tests \Drupal\Core\Image\Image::scaleAndCrop().
ImageTest::testScaleAndCropHeight in core/tests/Drupal/Tests/Core/Image/ImageTest.php
Tests \Drupal\Core\Image\Image::scaleAndCrop().
ImageTest::testScaleAndCropWidth in core/tests/Drupal/Tests/Core/Image/ImageTest.php
Tests \Drupal\Core\Image\Image::scaleAndCrop().

File

core/modules/system/src/Plugin/ImageToolkit/Operation/gd/ScaleAndCrop.php, line 11

Namespace

Drupal\system\Plugin\ImageToolkit\Operation\gd
View source 
class ScaleAndCrop extends GDImageToolkitOperationBase {
    
    /**
     * {@inheritdoc}
     */
    protected function arguments() {
        return [
            'x' => [
                'description' => 'The horizontal offset for the start of the crop, in pixels',
                'required' => FALSE,
                'default' => NULL,
            ],
            'y' => [
                'description' => 'The vertical offset for the start the crop, in pixels',
                'required' => FALSE,
                'default' => NULL,
            ],
            'width' => [
                'description' => 'The target width, in pixels',
            ],
            'height' => [
                'description' => 'The target height, in pixels',
            ],
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    protected function validateArguments(array $arguments) {
        $actualWidth = $this->getToolkit()
            ->getWidth();
        $actualHeight = $this->getToolkit()
            ->getHeight();
        $scaleFactor = max($arguments['width'] / $actualWidth, $arguments['height'] / $actualHeight);
        $arguments['x'] = isset($arguments['x']) ? (int) round($arguments['x']) : (int) round(($actualWidth * $scaleFactor - $arguments['width']) / 2);
        $arguments['y'] = isset($arguments['y']) ? (int) round($arguments['y']) : (int) round(($actualHeight * $scaleFactor - $arguments['height']) / 2);
        $arguments['resize'] = [
            'width' => (int) round($actualWidth * $scaleFactor),
            'height' => (int) round($actualHeight * $scaleFactor),
        ];
        // Fail when width or height are 0 or negative.
        if ($arguments['width'] <= 0) {
            throw new \InvalidArgumentException("Invalid width ('{$arguments['width']}') specified for the image 'scale_and_crop' operation");
        }
        if ($arguments['height'] <= 0) {
            throw new \InvalidArgumentException("Invalid height ('{$arguments['height']}') specified for the image 'scale_and_crop' operation");
        }
        return $arguments;
    }
    
    /**
     * {@inheritdoc}
     */
    protected function execute(array $arguments = []) {
        return $this->getToolkit()
            ->apply('resize', $arguments['resize']) && $this->getToolkit()
            ->apply('crop', $arguments);
    }

}

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 for required arguments and adds optional argument defaults.
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
ScaleAndCrop::arguments protected function Returns the definition of the operation arguments. Overrides ImageToolkitOperationBase::arguments
ScaleAndCrop::execute protected function Performs the actual manipulation on the image. Overrides ImageToolkitOperationBase::execute
ScaleAndCrop::validateArguments protected function Validates the arguments. Overrides ImageToolkitOperationBase::validateArguments

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