lbl_status->set_geometry(GLtk::Geometry(10, 60, geom.w-20, 20));
status.signal_changed.connect(sigc::mem_fun(this, &TrainPanel::train_status_changed));
lbl_status->set_geometry(GLtk::Geometry(10, 60, geom.w-20, 20));
status.signal_changed.connect(sigc::mem_fun(this, &TrainPanel::train_status_changed));