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84 lines
2.6 KiB
84 lines
2.6 KiB
14 years ago
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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/*
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Rosegarden
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A MIDI and audio sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <richard.bown@ferventsoftware.com>
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The moral rights of Guillaume Laurent, Chris Cannam, and Richard
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Bown to claim authorship of this work have been asserted.
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Other copyrights also apply to some parts of this work. Please
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see the AUTHORS file and individual file headers for details.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#include "TransposeCommand.h"
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#include <iostream>
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#include "base/NotationTypes.h"
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#include "base/Selection.h"
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#include "document/BasicSelectionCommand.h"
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#include <qstring.h>
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#include "base/BaseProperties.h"
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namespace Rosegarden
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{
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using namespace BaseProperties;
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using namespace Accidentals;
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void
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TransposeCommand::modifySegment()
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{
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EventSelection::eventcontainer::iterator i;
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for (i = m_selection->getSegmentEvents().begin();
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i != m_selection->getSegmentEvents().end(); ++i) {
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if ((*i)->isa(Note::EventType)) {
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if (m_diatonic)
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{
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Pitch oldPitch(**i);
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timeT noteTime = (*i)->getAbsoluteTime();
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Key key = m_selection->getSegment().getKeyAtTime(noteTime);
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Pitch newPitch = oldPitch.transpose(key, m_semitones, m_steps);
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Event * newNoteEvent = newPitch.getAsNoteEvent(0, 0);
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Accidental newAccidental;
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newNoteEvent->get<String>(BaseProperties::ACCIDENTAL, newAccidental);
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(*i)->set<Int>(PITCH, newPitch.getPerformancePitch());
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(*i)->set<String>(ACCIDENTAL, newAccidental);
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}
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else
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{
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try {
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long pitch = (*i)->get<Int>(PITCH);
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pitch += m_semitones;
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(*i)->set<Int>(PITCH, pitch);
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if ((m_semitones % 12) != 0) {
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(*i)->unset(ACCIDENTAL);
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}
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} catch (...) { }
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}
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}
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}
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}
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}
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