Update export config on stem export select tracks/busses/none

Call update_config() after selecting/deselecting all tracks/busses so that
the warning about 'No channels have been selected' is shown/hidden
appropriately.

diff --git a/gtk2_ardour/export_channel_selector.cc b/gtk2_ardour/export_channel_selector.cc
index 023a11cab20073e1c8c569f3c07bc73fa580129a..77cabad5a17a55508010129279573cc04bcd2261 100644 (file)
--- a/gtk2_ardour/export_channel_selector.cc
+++ b/gtk2_ardour/export_channel_selector.cc
@@ -611,6 +611,7 @@ TrackExportChannelSelector::select_tracks ()
                        row[track_cols.selected] = true;
                }
        }
+       update_config();
 }
 
 void
@@ -624,6 +625,7 @@ TrackExportChannelSelector::select_busses ()
                        row[track_cols.selected] = true;
                }
        }
+       update_config();
 }
 
 void
@@ -633,6 +635,7 @@ TrackExportChannelSelector::select_none ()
                Gtk::TreeModel::Row row = *it;
                row[track_cols.selected] = false;
        }
+       update_config();
 }
 
 void