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livetrax/libs/ardour/transpose.cc

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1.4 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.
*/
#include "ardour/transpose.h"
namespace ARDOUR {
Transpose::Transpose(int semitones)
: _semitones(semitones)
{}
PBD::Command*
Transpose::operator()(std::shared_ptr<MidiModel> model,
Temporal::Beats position,
std::vector<Notes>& seqs)
{
typedef MidiModel::NoteDiffCommand Command;
Command* cmd = new Command(model, name());
for (std::vector<Notes>::iterator s = seqs.begin(); s != seqs.end(); ++s) {
for (Notes::const_iterator i = (*s).begin(); i != (*s).end(); ++i) {
const NotePtr note = *i;
model->transpose (cmd, *i, _semitones);
}
}
return cmd;
}
} // namespace ARDOUR