GUI part of LV2 midnam race condition fix

[ardour.git] / gtk2_ardour / midi_time_axis.cc

diff --git a/gtk2_ardour/midi_time_axis.cc b/gtk2_ardour/midi_time_axis.cc
index 3627074bc89df026bf4900a6b4caf14433a9b168..c8476dc83e5ea0dc0014e77299168924bcac8b0e 100644 (file)
--- a/gtk2_ardour/midi_time_axis.cc
+++ b/gtk2_ardour/midi_time_axis.cc
@@ -427,6 +427,7 @@ MidiTimeAxisView::update_patch_selector ()
                        pi->plugin()->UpdateMidnam.connect (midnam_connection, invalidator (*this),
                                        boost::bind (&MidiTimeAxisView::reread_midnam, this),
                                        gui_context());
+                       reread_midnam ();
 
                        pluginprovided = true;
                        std::string model_name = pi->plugin ()->midnam_model ();
@@ -450,9 +451,9 @@ MidiTimeAxisView::reread_midnam ()
 {
        boost::shared_ptr<Processor> the_instrument (_route->the_instrument());
        boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert>(the_instrument);
-       pi->plugin ()->read_midnam();
+       bool rv = pi->plugin ()->read_midnam();
 
-       if (_patch_change_dialog) {
+       if (rv && _patch_change_dialog) {
                _patch_change_dialog->refresh ();
        }
 }