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Diffstat (limited to 'libs/ardour/ardour/midi_cursor.h')
-rw-r--r-- | libs/ardour/ardour/midi_cursor.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/libs/ardour/ardour/midi_cursor.h b/libs/ardour/ardour/midi_cursor.h new file mode 100644 index 0000000000..5cb89c87f5 --- /dev/null +++ b/libs/ardour/ardour/midi_cursor.h @@ -0,0 +1,56 @@ +/* + Copyright (C) 2016 Paul Davis + Author: David Robillard + + 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. +*/ + +#ifndef __ardour_midi_cursor_h__ +#define __ardour_midi_cursor_h__ + +#include <set> + +#include <boost/utility.hpp> + +#include "ardour/types.h" +#include "evoral/Beats.hpp" +#include "evoral/Sequence.hpp" +#include "pbd/signals.h" + +namespace ARDOUR { + +struct MidiCursor : public boost::noncopyable { + MidiCursor() : last_read_end(0) {} + + 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 ? &active_notes : NULL); + last_read_end = 0; + } + + Evoral::Sequence<Evoral::Beats>::const_iterator iter; + std::set<Evoral::Sequence<Evoral::Beats>::WeakNotePtr> active_notes; + framepos_t last_read_end; + PBD::ScopedConnectionList connections; +}; + +} + +#endif /* __ardour_midi_cursor_h__ */ |