Prevent note trim to zero length (shown as stuck).

The reasonable value 1 tick doesn't seem to work here, presumably it gets lost
in rounding conversion somewhere.  Instead use a really small power of two
reciprocal.  Once we use actual beats and ticks we can fix this to be a minimum
of one tick (the actual minimum length for a note).

1 files changed, 5 insertions, 6 deletions

diff --git a/gtk2_ardour/midi_region_view.cc b/gtk2_ardour/midi_region_view.cc
index eedf67836e..ef04fde798 100644
--- a/gtk2_ardour/midi_region_view.cc
+++ b/gtk2_ardour/midi_region_view.cc
@@ -2693,6 +2693,8 @@ MidiRegionView::update_resizing (NoteBase* primary, bool at_front, double delta_
 				}
 			}
 
+			len = std::max(Evoral::Beats(1 / 512.0), len);
+
 			char buf[16];
 			snprintf (buf, sizeof (buf), "%.3g beats", len.to_double());
 			show_verbose_cursor (buf, 0, 0);
@@ -2761,12 +2763,9 @@ MidiRegionView::commit_resizing (NoteBase* primary, bool at_front, double delta_
 		}
 
 		if (!at_front) {
-			const Evoral::Beats len = x_beats - canvas_note->note()->time();
-
-			if (!!len) {
-				/* XXX convert to beats */
-				note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::Length, len);
-			}
+			const Evoral::Beats len = std::max(Evoral::Beats(1 / 512.0),
+			                                   x_beats - canvas_note->note()->time());
+			note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::Length, len);
 		}
 
 		delete resize_rect;