labelconfig.h

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#ifndef OPENSWMM_RENDER_LABELCONFIG_H
#define OPENSWMM_RENDER_LABELCONFIG_H
 
#include <QColor>
#include <QFont>
#include <QJsonObject>
#include <QString>
 
namespace OpenSWMM::Render {
 
struct LabelConfig
{
    bool    enabled       = false;
 
    QString fieldName;
 
    QString expression;
 
    QFont   font;
 
    qreal   fontSizePt    = 9.0;
 
    QColor  color         = QColor(20, 20, 20);
 
    bool    haloEnabled   = false;
    QColor  haloColor     = QColor(255, 255, 255);
    qreal   haloRadiusPx  = 1.5;
 
    enum Placement {
        AutoPlacement = 0,  
        Above,              
        Below,              
        Left,               
        Right,              
        Centre,             
    };
    Placement placement   = AutoPlacement;
 
    double  minScale      = 0.0;
    double  maxScale      = 0.0;
 
    bool    backgroundEnabled    = false;
    QColor  backgroundColor      = QColor(255, 255, 255, 200);
    qreal   backgroundPaddingPx  = 2.0;
    qreal   backgroundRadiusPx   = 3.0;
 
    QString priorityField;
 
    [[nodiscard]] QJsonObject toJson() const;
    void fromJson(const QJsonObject &j);
 
    [[nodiscard]] bool isValid() const { return fontSizePt > 0.0; }
 
    [[nodiscard]] QFont effectiveFont() const
    {
        QFont f = font;
        f.setPointSizeF(fontSizePt);
        return f;
    }
};
 
inline bool operator==(const LabelConfig &a, const LabelConfig &b)
{
    return a.enabled       == b.enabled
        && a.fieldName     == b.fieldName
        && a.expression    == b.expression
        && a.font          == b.font
        && qFuzzyCompare(a.fontSizePt,   b.fontSizePt)
        && a.color         == b.color
        && a.haloEnabled   == b.haloEnabled
        && a.haloColor     == b.haloColor
        && qFuzzyCompare(a.haloRadiusPx, b.haloRadiusPx)
        && a.placement     == b.placement
        && qFuzzyCompare(a.minScale,     b.minScale)
        && qFuzzyCompare(a.maxScale,     b.maxScale)
        && a.backgroundEnabled    == b.backgroundEnabled
        && a.backgroundColor      == b.backgroundColor
        && qFuzzyCompare(a.backgroundPaddingPx, b.backgroundPaddingPx)
        && qFuzzyCompare(a.backgroundRadiusPx,  b.backgroundRadiusPx)
        && a.priorityField        == b.priorityField;
}
inline bool operator!=(const LabelConfig &a, const LabelConfig &b) { return !(a == b); }
 
} // namespace OpenSWMM::Render
 
#endif // OPENSWMM_RENDER_LABELCONFIG_H