databasetask.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2017-01-29
 * Description : Thread actions task for database cleanup.
 *
 * Copyright (C) 2017-2018 by Mario Frank <mario dot frank at uni minus potsdam 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_DATABASE_TASK_H
#define DIGIKAM_DATABASE_TASK_H
 
// Qt includes
 
#include <QList>
 
// Local includes
 
#include "actionthreadbase.h"
#include "identity.h"
 
namespace Digikam
{
 
class LoadingDescription;
class MaintenanceData;
 
class DatabaseTask : public ActionJob
{
    Q_OBJECT
 
public:
 
    enum Mode
    {
        Unknown,
        ComputeDatabaseJunk,
        CleanCoreDb,
        CleanThumbsDb,
        CleanRecognitionDb,
        CleanSimilarityDb,
        ShrinkDatabases
    };
 
public:
 
    explicit DatabaseTask();
    ~DatabaseTask()     override;
 
    void setMode(Mode mode);
    void setMaintenanceData(MaintenanceData* const data = nullptr);
 
    void computeDatabaseJunk(bool thumbsDb = false,
                             bool facesDb = false,
                             bool similarityDb = false);
 
Q_SIGNALS:
 
    void signalFinished();
    void signalFinished(bool done, bool errorFree);
 
    void signalData(const QList<qlonglong>& staleImageIds,
                    const QList<int>& staleThumbIds,
                    const QList<Identity>& staleIdentities,
                    const QList<qlonglong>& staleSimilarityImageIds);
 
    void signalAddItemsToProcess(int count);
 
protected:
 
    void run()          override;
 
private:
 
    // Disable
    DatabaseTask(QObject*) = delete;
 
private:
 
    class Private;
    Private* const d;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_DATABASE_TASK_H