gpsundocommand.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2010-04-25
 * Description : A class to hold undo/redo commands.
 *
 * Copyright (C) 2010-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 * Copyright (C) 2010      by Michael G. Hansen <mike at mghansen dot 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, 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 DIGIKAM_GPS_UNDO_COMMAND_H
#define DIGIKAM_GPS_UNDO_COMMAND_H
 
// Qt includes
 
#include <QUndoCommand>
 
// Local includes
 
#include "gpsitemcontainer.h"
#include "digikam_export.h"
 
namespace Digikam
{
 
class DIGIKAM_EXPORT GPSUndoCommand : public QUndoCommand
{
public:
 
    class UndoInfo
    {
    public:
 
        explicit UndoInfo(const QPersistentModelIndex& pModelIndex)
            : modelIndex(pModelIndex)
        {
        }
 
        void readOldDataFromItem(const GPSItemContainer* const imageItem);
        void readNewDataFromItem(const GPSItemContainer* const imageItem);
 
    public:
 
        QPersistentModelIndex   modelIndex;
        GPSDataContainer        dataBefore;
        GPSDataContainer        dataAfter;
 
        QList<QList<TagData> >  oldTagList;
        QList<QList<TagData> >  newTagList;
 
        typedef QList<UndoInfo> List;
    };
 
    explicit GPSUndoCommand(QUndoCommand* const parent = nullptr);
 
    void addUndoInfo(const UndoInfo& info);
    void changeItemData(const bool redoIt);
 
    inline int affectedItemCount() const
    {
        return undoList.count();
    }
 
    void redo() override;
    void undo() override;
 
private:
 
    UndoInfo::List undoList;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_GPS_UNDO_COMMAND_H