basemaprenderparams.h

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#ifndef OPENSWMM_RENDER_BASEMAPRENDERPARAMS_H
#define OPENSWMM_RENDER_BASEMAPRENDERPARAMS_H
 
#include <QImage>
#include <QJsonObject>
 
namespace OpenSWMM::Render {
 
struct BasemapRenderParams
{
    double brightness = 0.0;
 
    double contrast   = 1.0;
 
    double saturation = 0.0;
 
    enum Resampling { Bilinear = 0, Nearest = 1 };
    Resampling resampling = Bilinear;
 
    [[nodiscard]] bool isIdentity() const
    {
        return qFuzzyCompare(brightness, 0.0)
            && qFuzzyCompare(contrast,   1.0)
            && qFuzzyCompare(saturation, 0.0);
    }
 
    void applyTo(QImage &img) const;
 
    [[nodiscard]] QJsonObject toJson() const;
    void fromJson(const QJsonObject &j);
};
 
inline bool operator==(const BasemapRenderParams &a, const BasemapRenderParams &b)
{
    return qFuzzyCompare(a.brightness, b.brightness)
        && qFuzzyCompare(a.contrast,   b.contrast)
        && qFuzzyCompare(a.saturation, b.saturation)
        && a.resampling == b.resampling;
}
inline bool operator!=(const BasemapRenderParams &a, const BasemapRenderParams &b) { return !(a == b); }
 
} // namespace OpenSWMM::Render
 
#endif // OPENSWMM_RENDER_BASEMAPRENDERPARAMS_H