ardour/libs/ardour/ardour/midi_cursor.h

61 lines
1.8 KiB
C++

/*
* Copyright (C) 2017 Paul Davis <paul@linuxaudiosystems.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __ardour_midi_cursor_h__
#define __ardour_midi_cursor_h__
#include <set>
#include <boost/utility.hpp>
#include "pbd/signals.h"
#include "temporal/beats.h"
#include "evoral/Sequence.h"
#include "ardour/types.h"
namespace ARDOUR {
struct MidiCursor : public boost::noncopyable {
MidiCursor() {}
void connect(PBD::Signal1<void, bool>& invalidated) {
connections.drop_connections();
invalidated.connect_same_thread (connections, boost::bind(&MidiCursor::invalidate, this, _1));
}
void invalidate(bool preserve_notes) {
iter.invalidate (preserve_notes);
/* maintain time domain while resetting to zero */
last_read_end = Temporal::timepos_t (last_read_end.time_domain());
}
Evoral::Sequence<Temporal::Beats>::const_iterator iter;
std::set<Evoral::Sequence<Temporal::Beats>::WeakNotePtr> active_notes;
timepos_t last_read_end;
PBD::ScopedConnectionList connections;
};
}
#endif /* __ardour_midi_cursor_h__ */