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/*
Rosegarden
A MIDI and audio sequencer and musical notation editor.
This program is Copyright 2000-2008
Guillaume Laurent <glaurent@telegraph-road.org>,
Chris Cannam <cannam@all-day-breakfast.com>,
Richard Bown <richard.bown@ferventsoftware.com>
The moral rights of Guillaume Laurent, Chris Cannam, and Richard
Bown to claim authorship of this work have been asserted.
Other copyrights also apply to some parts of this work. Please
see the AUTHORS file and individual file headers for details.
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. See the file
COPYING included with this distribution for more information.
*/
#ifndef _RG_CHANGEVELOCITYCOMMAND_H_
#define _RG_CHANGEVELOCITYCOMMAND_H_
#include "document/BasicSelectionCommand.h"
#include <tqstring.h>
#include <tdelocale.h>
namespace Rosegarden
{
class EventSelection;
/** Add or subtract a constant from all event velocities.
Use SelectionPropertyCommand if you want to do something more
creative. */
class ChangeVelocityCommand : public BasicSelectionCommand
{
public:
ChangeVelocityCommand(int delta, EventSelection &selection) :
BasicSelectionCommand(getGlobalName(delta), selection, true),
m_selection(&selection), m_delta(delta) { }
static TQString getGlobalName(int delta = 0) {
if (delta > 0) return i18n("&Increase Velocity");
else return i18n("&Reduce Velocity");
}
protected:
virtual void modifySegment();
private:
EventSelection *m_selection;// only used on 1st execute (cf bruteForceRedo)
int m_delta;
};
}
#endif
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