/**
* Generates a thumbnail.
*
* The generation is actually done by the sfImageTransformPlugin. This method only collects the
* options configured in the thumbnailing.yml and uses them to call sfImageTransformPlugins transformations.
* Additionally the generated thumbnail can be cached.
*
* @param string $uri Image source URI (sfImageSource://...)
* @param array $options Thumbnail parameters taken from the thumbnail URL referencing a format and id
* @return sfImage
*/
public function generate($uri, $format)
{
if (!array_key_exists($format, $this->options['formats'])) {
throw new sfImageTransformExtraPluginConfigurationException('Unknown format "' . $format . '" in your thumbnailing.yml!');
}
$sourceImage = new sfImage($uri);
$settings = $this->options['formats'][$format];
if (array_key_exists('mime_type', $settings)) {
$sourceImage->setMIMEType($settings['mime_type']);
}
if (is_array($settings['transformations'])) {
foreach ($settings['transformations'] as $transformation) {
$this->transform($sourceImage, $transformation);
}
}
$sourceImage->setQuality($settings['quality']);
return $sourceImage;
}
