Make the MidiRegionSelection notice when its MidiRegionViews go away; fixes one source of memory corruption during MIDI edits.

git-svn-id: svn://localhost/ardour2/branches/3.0@10991 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 45 insertions, 0 deletions

diff --git a/gtk2_ardour/midi_selection.cc b/gtk2_ardour/midi_selection.cc
new file mode 100644
index 0000000000..93f62f11a3
--- /dev/null
+++ b/gtk2_ardour/midi_selection.cc
@@ -0,0 +1,45 @@
+/*
+    Copyright (C) 2009 Paul Davis
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "gtkmm2ext/gui_thread.h"
+#include "midi_region_view.h"
+#include "midi_selection.h"
+#include "region_view.h"
+
+MidiRegionSelection::MidiRegionSelection ()
+{
+	RegionView::RegionViewGoingAway.connect (_death_connection, MISSING_INVALIDATOR, ui_bind (&MidiRegionSelection::remove_it, this, _1), gui_context());
+}
+
+/** Copy constructor.
+ *  @param other MidiRegionSelection to copy.
+ */
+MidiRegionSelection::MidiRegionSelection (MidiRegionSelection const & other)
+	: std::list<MidiRegionView*> (other)
+{
+	RegionView::RegionViewGoingAway.connect (_death_connection, MISSING_INVALIDATOR, ui_bind (&MidiRegionSelection::remove_it, this, _1), gui_context());
+}
+
+
+void
+MidiRegionSelection::remove_it (RegionView* rv)
+{
+	MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (rv);
+	remove (mrv);
+}