curvesfilter.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2010-25-02
 * Description : Curves image filter
 *
 * Copyright (C) 2010-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 * Copyright (C) 2010      by Martin Klapetek <martin dot klapetek 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 DIGIKAM_CURVES_FILTER_H
#define DIGIKAM_CURVES_FILTER_H
 
// Qt includes
 
#include <QPolygon>
 
// Local includes
 
#include "digikam_export.h"
#include "dimgthreadedfilter.h"
#include "digikam_globals.h"
#include "imagecurves.h"
 
namespace Digikam
{
 
class DImg;
 
class DIGIKAM_EXPORT CurvesFilter : public DImgThreadedFilter
{
    Q_OBJECT
 
public:
 
    explicit CurvesFilter(QObject* const parent = nullptr);
    explicit CurvesFilter(DImg* const orgImage,
                          QObject* const parent = nullptr,
                          const CurvesContainer& settings = CurvesContainer());
    explicit CurvesFilter(const CurvesContainer& settings,
                          DImgThreadedFilter* const master,
                          const DImg& orgImage,
                          DImg& destImage,
                          int progressBegin = 0,
                          int progressEnd = 100);
    ~CurvesFilter()                                                 override;
 
    static QString FilterIdentifier()
    {
        return QLatin1String("digikam:CurvesFilter");
    }
 
    static QString DisplayableName();
 
    static QList<int> SupportedVersions()
    {
        return QList<int>() << 1;
    }
 
    static int CurrentVersion()
    {
        return 1;
    }
 
    QString filterIdentifier()                               const override
    {
        return FilterIdentifier();
    }
 
    FilterAction filterAction()                                    override;
    void readParameters(const FilterAction& action)                override;
 
private:
 
    void filterImage()                                             override;
 
private:
 
    CurvesContainer m_settings;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_CURVES_FILTER_H