/** * Retrieves the original file path for a given set of pixels. * @param pixels Set of pixels to return an orignal file path for. * @return The original file path or <code>null</code> if the original file * path could not be located or the <code>resolver</code> has not been set. */ protected String getOriginalFilePath(Pixels pixels) { if (resolver == null) { return null; } return resolver.getOriginalFilePath(this, pixels); }