std::map< QDockWidget*, std::shared_ptr<views::ViewBase> > view_docks_;
std::map< std::shared_ptr<Session>, QMainWindow*> session_windows_;
QWidget *static_tab_widget_;
std::map< QDockWidget*, std::shared_ptr<views::ViewBase> > view_docks_;
std::map< std::shared_ptr<Session>, QMainWindow*> session_windows_;
QWidget *static_tab_widget_;