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Diffstat (limited to 'gtk2_ardour/midi_list_editor.cc')
-rw-r--r--gtk2_ardour/midi_list_editor.cc6
1 files changed, 6 insertions, 0 deletions
diff --git a/gtk2_ardour/midi_list_editor.cc b/gtk2_ardour/midi_list_editor.cc
index de1331674e..c8c016d9a8 100644
--- a/gtk2_ardour/midi_list_editor.cc
+++ b/gtk2_ardour/midi_list_editor.cc
@@ -38,6 +38,12 @@ MidiListEditor::MidiListEditor (Session* s, boost::shared_ptr<MidiRegion> r)
: ArdourDialog (r->name(), false, false)
, region (r)
{
+ /* We do not handle nested sources/regions. Caller should have tackled this */
+
+ if (r->max_source_level() > 0) {
+ throw failed_constructor();
+ }
+
set_session (s);
model = ListStore::create (columns);