settings.setValue("screen_rotation", rotation_selector->currentIndex());
settings.setValue("left_zoom", leftzoom_selector->currentIndex());
settings.setValue("right_zoom", rightzoom_selector->currentIndex());
settings.setValue("screen_rotation", rotation_selector->currentIndex());
settings.setValue("left_zoom", leftzoom_selector->currentIndex());
settings.setValue("right_zoom", rightzoom_selector->currentIndex());