histogrampainter.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2009-10-26
 * Description : a class that manages painting histograms
 *
 * Copyright (C) 2009      by Johannes Wienke <languitar at semipol dot de>
 * Copyright (C) 2011-2022 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 DIGIKAM_HISTOGRAM_PAINTER_H
#define DIGIKAM_HISTOGRAM_PAINTER_H
 
// Qt includes
 
#include <QObject>
#include <QWidget>
 
// Local includes
 
#include "imagehistogram.h"
#include "digikam_globals.h"
#include "dcolor.h"
 
namespace Digikam
{
 
class HistogramPainter : public QObject
{
    Q_OBJECT
 
public:
 
    explicit HistogramPainter(QObject* const parent);
 
    ~HistogramPainter() override;
 
    void setHistogram(ImageHistogram* const histogram);
 
    void setScale(HistogramScale scale);
 
    void setChannelType(ChannelType channelType);
 
    void setHighlightSelection(bool highlightSelection);
 
    void setSelection(double selectionMin, double selectionMax);
 
    void setRenderXGrid(bool renderXGrid);
 
    void enableHistogramGuideByColor(const DColor& color);
 
    void disableHistogramGuide();
 
    void initFrom(QWidget* const widget);
 
    void render(QPixmap& paintDevice);
 
private:
 
    class Private;
    Private* const d;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_HISTOGRAM_PAINTER_H