/**
* {@inheritdoc}
*/
public function createVariation(ImageFormat $output_format, $quality, ImageDimensions $dimensions = null, ImageCropDimensions $crop_dimensions = null)
{
$src = $this->getTempFile($this->data);
$img = new \Imagick();
$img->setResolution($this->resolution, $this->resolution);
$img->readImage($src);
$img->setIteratorIndex(0);
// Flatten images here helps the encoder to get rid of the black background
// that appears on encoded image files.
$img = $img->flattenImages();
$img->setImageFormat((string) $output_format->value());
$img->setImageCompressionQuality($quality);
if (null !== $crop_dimensions) {
$img->cropImage($crop_dimensions->getWidth(), $crop_dimensions->getHeight(), $crop_dimensions->getX(), $crop_dimensions->getY());
}
if (null !== $dimensions) {
$img->resizeImage($dimensions->getWidth() ?: 0, $dimensions->getHeight() ?: 0, $this->filter, 1, false);
}
return $img->getImageBlob();
}
/**
* {@inheritdoc}
*/
public function createVariation(ImageFormat $output_format, $quality, ImageDimensions $dimensions = null, ImageCropDimensions $crop_dimensions = null)
{
try {
$img = new InterventionImage($this->data);
} catch (\Intervention\Image\Exception\InvalidImageDataStringException $e) {
throw new BadImageException('Bad image data', 0, $e);
} catch (\Intervention\Image\Exception\ImageNotFoundException $e) {
throw new BadImageException('Not an image', 0, $e);
}
if ($dimensions) {
if ($dimensions->getGrab()) {
$img->grab($dimensions->getWidth(), $dimensions->getHeight());
} else {
$img->resize($dimensions->getWidth(), $dimensions->getHeight(), $dimensions->getMaintainRatio(), $dimensions->canUpscale());
}
}
return $img->encode($output_format->key(), $quality);
}
/**
* {@inheritdoc}
*/
public static function deserialise($json)
{
if (empty($json)) {
throw new InvalidImageMetadataException();
}
$object_data = json_decode($json, true);
// MIME-type is an minimum requirement for metadata
if (!isset($object_data['mimetype'])) {
throw new InvalidImageMetadataException();
}
$instance = new static();
$instance->setMimeType($object_data['mimetype'])->setFormat(isset($object_data['format']) ? ImageFormat::memberByValue($object_data['format']) : null)->setResolution(isset($object_data['resolution']) ? ImageDimensions::deserialise($object_data['resolution']) : null)->setOrientation(isset($object_data['orientation']) ? ImageOrientation::memberByValue($object_data['orientation']) : null)->setDimensions(isset($object_data['dimensions']) ? ImageDimensions::deserialise($object_data['dimensions']) : null);
return $instance;
}
