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84 lines
2.5 KiB
84 lines
2.5 KiB
/*
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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 "InvertCommand.h"
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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 <tqstring.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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void
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InvertCommand::modifySegment()
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{
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EventSelection::eventcontainer::iterator i;
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long highestPitch, lowestPitch;
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bool firstNote = true;
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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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try {
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long pitch = (*i)->get
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<Int>(PITCH);
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if (firstNote) {
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highestPitch = pitch;
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lowestPitch = pitch;
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firstNote = false;
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} else {
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if (pitch > highestPitch)
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highestPitch = pitch;
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else if (pitch < lowestPitch)
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lowestPitch = pitch;
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}
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} catch (...) { }
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}
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}
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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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try {
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long pitch = (*i)->get
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<Int>(PITCH);
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pitch = lowestPitch + (highestPitch - pitch);
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pitch += m_semitones;
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(*i)->set
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<Int>(PITCH, pitch);
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(*i)->unset(ACCIDENTAL);
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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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