~ubuntu-branches/ubuntu/trusty/digikam/trusty

/* ============================================================

 *

 * This file is a part of digiKam project

 * http://www.digikam.org

 *

 * Date        : 2005-24-01

 * Description : auto levels image filter.

 *

 * Copyright (C) 2005-2012 by Gilles Caulier <caulier dot gilles at gmail dot com>

 *

 * 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 AUTOLEVELSFILTER_H

#define AUTOLEVELSFILTER_H

// Local includes

#include "digikam_export.h"

#include "dimgthreadedfilter.h"

#include "globals.h"

using namespace Digikam;

namespace Digikam

{

class DImg;

class DIGIKAM_EXPORT AutoLevelsFilter : public DImgThreadedFilter

{

public:

    explicit AutoLevelsFilter(QObject* const parent = 0);

    AutoLevelsFilter(DImg* const orgImage, const DImg* const refImage, QObject* const parent=0);

    virtual ~AutoLevelsFilter();

    static QString          FilterIdentifier()

    {

        return "digikam:AutoLevelsFilter";

    }

    static QList<int>       SupportedVersions()

    {

        return QList<int>() << 1;

    }

    static int              CurrentVersion()

    {

        return 1;

    }

    static QString          DisplayableName()

    {

        return I18N_NOOP("Auto Levels");

    }

    virtual QString         filterIdentifier() const

    {

        return FilterIdentifier();

    }

    virtual FilterAction    filterAction();

    void                    readParameters(const FilterAction& action);

private:

    void filterImage();

    void autoLevelsCorrectionImage();

private:

    DImg m_refImage;

};

}  // namespace Digikam

#endif /* AUTOLEVELSFILTER_H */