/// \return true if items are added and there is no necessity to provide standard menu
virtual bool addViewerItems(QMenu* theMenu, const QMap<QString, QAction*>& theStdActions) const;
/// \return true if items are added and there is no necessity to provide standard menu
virtual bool addViewerItems(QMenu* theMenu, const QMap<QString, QAction*>& theStdActions) const;