- QAction* action_open() const;
- QAction* action_save_as() const;
- QAction* action_connect() const;
- QAction* action_quit() const;
- QAction* action_view_zoom_in() const;
- QAction* action_view_zoom_out() const;
- QAction* action_view_zoom_fit() const;
- QAction* action_view_zoom_one_to_one() const;
- QAction* action_view_show_cursors() const;