fix incorrect behaviour of mixer strip [X] (hide) buttons

diff --git a/gtk2_ardour/mixer_ui.cc b/gtk2_ardour/mixer_ui.cc
index 55d1d115428a2a00229674c8cebaa9d84644a282..b2302a5626b58609bbcd87c618249561b1666251 100644 (file)
--- a/gtk2_ardour/mixer_ui.cc
+++ b/gtk2_ardour/mixer_ui.cc
@@ -1057,7 +1057,8 @@ Mixer_UI::show_strip (MixerStrip* ms)
                MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
                if (strip == ms) {
                        (*i)[stripable_columns.visible] = true;
-                       redisplay_track_list ();
+                       av->set_marked_for_display (true);
+                       update_track_visibility ();
                        break;
                }
        }
@@ -1075,7 +1076,8 @@ Mixer_UI::hide_strip (MixerStrip* ms)
                MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
                if (strip == ms) {
                        (*i)[stripable_columns.visible] = false;
-                       redisplay_track_list ();
+                       av->set_marked_for_display (false);
+                       update_track_visibility ();
                        break;
                }
        }