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 | /* ============================================================
 *
 * This file is a part of digiKam project
 * http://www.digikam.org
 *
 * Date        : 2005-02-06
 * Description : an image editor actions undo/redo manager
 *
 * Copyright (C) 2005-2006 by Renchi Raju <renchi@pooh.tam.uiuc.edu>
 * Copyright (C) 2005-2006 by Joern Ahrens <joern.ahrens@kdemail.net>
 *
 * 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, 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.
 *
 * ============================================================ */
#ifndef UNDOMANAGER_H
#define UNDOMANAGER_H
// TQt includes.
#include <tqstringlist.h>
// Local includes.
#include "digikam_export.h"
namespace Digikam
{
class DImgInterface;
class UndoManagerPriv;
class UndoAction;
class DIGIKAM_EXPORT UndoManager
{
public:
    UndoManager(DImgInterface* iface);
    ~UndoManager();
    void undo();
    void redo();
    
    void clear(bool clearCache=true);
    bool anyMoreUndo();
    bool anyMoreRedo();    
    void getUndoHistory(TQStringList &titles);
    void getRedoHistory(TQStringList &titles);
    bool isAtOrigin();
    void setOrigin();
    void addAction(UndoAction* action);
private:
    
    void clearUndoActions();
    void clearRedoActions();
private:
    UndoManagerPriv *d;
};
}  // namespace Digikam
#endif /* UNDOMANAGER_H */
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