2 Copyright (C) 2016 Paul Davis
3 Author: David Robillard
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_midi_cursor_h__
21 #define __ardour_midi_cursor_h__
25 #include <boost/utility.hpp>
27 #include "ardour/types.h"
28 #include "evoral/Beats.hpp"
29 #include "evoral/Sequence.hpp"
30 #include "pbd/signals.h"
34 struct MidiCursor : public boost::noncopyable {
35 MidiCursor() : last_read_end(0) {}
37 void connect(PBD::Signal1<void, bool>& invalidated) {
38 connections.drop_connections();
39 invalidated.connect_same_thread(
40 connections, boost::bind(&MidiCursor::invalidate, this, _1));
43 void invalidate(bool preserve_notes) {
44 iter.invalidate(preserve_notes ? &active_notes : NULL);
48 Evoral::Sequence<Evoral::Beats>::const_iterator iter;
49 std::set<Evoral::Sequence<Evoral::Beats>::WeakNotePtr> active_notes;
50 framepos_t last_read_end;
51 PBD::ScopedConnectionList connections;
56 #endif /* __ardour_midi_cursor_h__ */