/**
* Returns important meta data for the given object implementing ImageInterface.
*
* Will return an array with the following keys:
*
* "originalImageResourceUri": Uri for the original resource
* "previewImageResourceUri": Uri for a preview image with reduced size
* "originalDimensions": Dimensions for the original image (width, height, aspectRatio)
* "previewDimensions": Dimensions for the preview image (width, height)
* "object": object properties like the __identity and __type of the object
*
* @param ImageInterface $image The image to retrieve meta data for
* @return array
*/
protected function getImageInterfacePreviewData(ImageInterface $image)
{
// TODO: Now that we try to support all ImageInterface implementations we should use a strategy here to get the image properties for custom implementations
if ($image instanceof ImageVariant) {
$imageProperties = $this->getImageVariantPreviewData($image);
} else {
$imageProperties = $this->getImagePreviewData($image);
}
$imageProperties['object'] = $this->imageInterfaceArrayPresenter->convertFrom($image, 'string');
return $imageProperties;
}
/**
* Convert an object from \TYPO3\Media\Domain\Model\ImageInterface to a json representation.
*
* @param ImageInterface $source
* @param string $targetType must be 'string'
* @param array $convertedChildProperties
* @param PropertyMappingConfigurationInterface $configuration
* @return string The converted ImageInterface
*/
public function convertFrom($source, $targetType, array $convertedChildProperties = array(), PropertyMappingConfigurationInterface $configuration = null)
{
$data = parent::convertFrom($source, 'array', $convertedChildProperties, $configuration);
return json_encode($data);
}