private void AddNavigationButtons() { if (TrackCount <= 1) { return; } nav_backward_button = new Button(Stock.GoBack); nav_backward_button.UseStock = true; nav_backward_button.Clicked += delegate { NavigateBackward(); }; nav_backward_button.Show(); TooltipSetter.Set(tooltip_host, nav_backward_button, Catalog.GetString("Show the previous track")); nav_forward_button = new Button(Stock.GoForward); nav_forward_button.UseStock = true; nav_forward_button.Clicked += delegate { NavigateForward(); }; nav_forward_button.Show(); TooltipSetter.Set(tooltip_host, nav_forward_button, Catalog.GetString("Show the next track")); ActionArea.PackStart(nav_backward_button, false, false, 0); ActionArea.PackStart(nav_forward_button, false, false, 0); ActionArea.SetChildSecondary(nav_backward_button, true); ActionArea.SetChildSecondary(nav_forward_button, true); }