final function deriveLayoutPathPrefix()
    {
        $moduleNamespace = $this->deriveModuleNamespace();
        $path  = ($moduleNamespace) ? $moduleNamespace .'/' : '';
        $path .= $this->deriveWidgetName();

        // in some cases widget name contains \ from class namespace
        $path  = str_replace('\\', '/', $this->inflectName($path));

        return $path;
    }