- QMenu *_menu_view;
- QAction *_action_view_zoom_in;
- QAction *_action_view_zoom_out;
- QAction *_action_view_show_cursors;
-
- QMenu *_menu_help;
- QAction *_action_about;
-
- QWidget *_central_widget;
- QVBoxLayout *_vertical_layout;
-
- QToolBar *_toolbar;
- SamplingBar *_sampling_bar;