/**
* @param Image $image
*
* @return ImageMetadata
*/
public function getImageMetadata(Image $image)
{
if (!$image->isHydrated()) {
throw new ImageManagerException(ImageManager::ERR_NOT_HYDRATED);
}
if ($image instanceof ImageVariation) {
throw new ImageManagerException(self::ERR_SOURCE_IMAGE);
}
$metadata = new ImageMetadata();
$data_inspector = new DataInspector();
$data = $image->getData();
if ($data_inspector->isPdf($data)) {
$format = ImageFormat::PDF();
} else {
$format = $data_inspector->getImageFormat($data);
}
$metadata->setMimetype($data_inspector->guessMimeType($data))->setFormat($format)->setResolution($this->getImageResolution($image))->setOrientation($this->getImageOrientation($image))->setDimensions($this->getImageDimensions($image));
return $metadata;
}
/**
* Hydrate and render an image variation with parent data.
*
* You can use this to create a variation with a source image
*
* @param Image $parent
* @param ImageVariation $variation
*
* @return ImageVariation
*
* @throws BadImageException
* @throws ImageManagerException
*/
protected function hydrateVariation(Image $parent, ImageVariation &$variation)
{
if (!$parent->isHydrated()) {
throw new ImageManagerException('Parent: ' . self::ERR_NOT_HYDRATED);
}
$quality = $variation->getQuality() ?: 90;
if ($quality < 1) {
$quality = 1;
} elseif ($quality > 100) {
$quality = 100;
}
$variation->setData(null);
$input = $parent->getData();
foreach ($this->encoders as $encoder) {
if ($encoder->supports($input)) {
$encoder->setData($input);
$variation->setData($encoder->createVariation($variation->getFormat(), $quality, $variation->getDimensions(), $variation->getCropDimensions()));
$encoder->setData(null);
break;
}
}
if (!$variation->getData()) {
throw new NoSupportedEncoderException('There is no known encoder for this data type');
}
return $variation;
}