hspreviewwidget.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2007-01-08
 * Description : Hue/Saturation preview widget
 *
 * Copyright (C) 2007-2022 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_HS_PREVIEW_WIDGET_H
#define DIGIKAM_HS_PREVIEW_WIDGET_H
 
// Qt includes
 
#include <QWidget>
#include <QPaintEvent>
#include <QResizeEvent>
 
// Local includes
 
#include "digikam_export.h"
 
namespace Digikam
{
 
class DIGIKAM_EXPORT HSPreviewWidget : public QWidget
{
    Q_OBJECT
 
public:
 
    explicit HSPreviewWidget(QWidget* const parent = nullptr);
    ~HSPreviewWidget() override;
 
    void setHS(double hue, double sat);
 
protected:
 
    void resizeEvent(QResizeEvent*) override;
    void paintEvent(QPaintEvent*)   override;
 
private:
 
    void updatePixmap();
 
private:
 
    class Private;
    Private* const d;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_HS_PREVIEW_WIDGET_H