Image::__construct

public function __construct($file = null)
{
	$this->file = $file;

	$serviceLocator = DIServiceLocator::getInstance();
	if($serviceLocator->has("main.imageEngine"))
	{
		$this->setEngine($serviceLocator->get("main.imageEngine"));
	}
	else
	{
		$this->setEngine(new ImageGd());
	}
}