/**
* Get orientation of an image from the supplied Image object.
* NOTE: This function doesn't read EXIF data of the file to detect orientation
* data.
*
* @param Image $image
*
* @return ImageOrientation
*/
protected function getImageOrientation(Image $image)
{
if (!$image->isHydrated()) {
throw new ImageManagerException(ImageManager::ERR_NOT_HYDRATED);
}
$img = new \Imagick();
$img->readImageBlob($image->getData());
$width = $img->getImageWidth();
$height = $img->getImageHeight();
if ($width >= $height) {
return ImageOrientation::LANDSCAPE();
}
return ImageOrientation::PORTRAIT();
}
/**
* {@inheritdoc}
*/
public static function deserialise($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;
}
public function testMetadataRetrieval()
{
$inspector = new ImageInspector();
$fn = __DIR__ . '/../Resources/image.png';
$im = new ImageManager(new Filesystem(new LocalAdapter(static::$tmp_dir . 'remote')), new EphemeralCachePool(), [], true);
$image = $im->loadFromFile($fn, self::TEST_KEY);
$im->push($image);
$metadata = $inspector->getImageMetadata($image);
$this->assertEquals($metadata->getFormat(), ImageFormat::PNG());
$this->assertEquals($metadata->getDimensions(), new ImageDimensions(300, 300));
$this->assertEquals($metadata->getResolution(), new ImageDimensions(72, 72));
$this->assertEquals($metadata->getOrientation(), ImageOrientation::LANDSCAPE());
}