public function addResource($rmID, $width, $height, $resourcePath, $format) { if (isset($this->renderersByRMID[$rmID])) { $renderer = $this->renderersByRMID[$rmID]; } else { $renderer = new ResourceRenderer($width, $height); $this->renderersByRMID[$rmID] = $renderer; } $renderer->addResource($resourcePath, $format); }