fix apparent logic error for MidiRegionView when redisplaying note model

diff --git a/gtk2_ardour/midi_region_view.cc b/gtk2_ardour/midi_region_view.cc
index d9a5ce4b6b11e7a62efcac6208b6669c4f240347..30ba3284d8ce2b406071edfa7b10149c30f4925a 100644 (file)
--- a/gtk2_ardour/midi_region_view.cc
+++ b/gtk2_ardour/midi_region_view.cc
@@ -1115,7 +1115,7 @@ MidiRegionView::redisplay_model()
        MidiModel::Notes& notes (_model->notes());
        _optimization_iterator = _events.begin();
 
-       bool empty_when_starting = !_events.empty();
+       bool empty_when_starting = _events.empty();
 
        for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 
@@ -1124,8 +1124,8 @@ MidiRegionView::redisplay_model()
                bool visible;
 
                if (note_in_region_range (note, visible)) {
-
-                       if (empty_when_starting && (cne = find_canvas_note (note)) != 0) {
+                       
+                       if (!empty_when_starting && (cne = find_canvas_note (note)) != 0) {
 
                                cne->validate ();
 
@@ -1150,8 +1150,8 @@ MidiRegionView::redisplay_model()
                        }
 
                } else {
-
-                       if (empty_when_starting && (cne = find_canvas_note (note)) != 0) {
+                       
+                       if (!empty_when_starting && (cne = find_canvas_note (note)) != 0) {
                                cne->validate ();
                                cne->hide ();
                        }
@@ -1161,7 +1161,7 @@ MidiRegionView::redisplay_model()
 
        /* remove note items that are no longer valid */
 
-       if (empty_when_starting) {
+       if (!empty_when_starting) {
                for (Events::iterator i = _events.begin(); i != _events.end(); ) {
                        if (!(*i)->valid ()) {
                                
@@ -1436,7 +1436,6 @@ MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
                        cnote->set_y1 (y1);
 
                } else if (Hit* chit = dynamic_cast<Hit*>(event)) {
-
                        update_hit (chit);
                }
        }