UndoManager.h

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/***************************************************************************
           UndoManager.h -  manager class for undo/redo handling
                             -------------------
    begin                : Sat Feb 01 2014
    copyright            : (C) 2014 by Thomas Eschenbacher
    email                : Thomas.Eschenbacher@gmx.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef UNDO_MANAGER_H
#define UNDO_MANAGER_H

#include "config.h"

#include <QtGlobal>
#include <QList>

namespace Kwave
{

    class UndoHandler;
    class UndoTransaction;

    class Q_DECL_EXPORT UndoManager
    {
    public:

        UndoManager();

        virtual ~UndoManager();

        bool registerHandler(Kwave::UndoHandler *handler);

        bool unregisterHandler(Kwave::UndoHandler *handler);

        bool startUndoTransaction(Kwave::UndoTransaction *transaction);

        bool closeUndoTransaction(Kwave::UndoTransaction *transaction);

    private:

        QList<Kwave::UndoHandler *> m_handlers;

    };
}

#endif /* UNDO_MANAGER_H */

//***************************************************************************
//***************************************************************************