symbolstyle.h File Reference

A stack of SymbolLayer paint passes plus a layer-level opacity. More...

#include "render/symbollayer.h"
#include <QColor>
#include <QJsonObject>
#include <QList>

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Classes
struct	OpenSWMM::Render::SymbolStyle
	Stack of SymbolLayer paint passes (bottom-up) plus an overall opacity. More...

Namespaces
namespace	OpenSWMM
namespace	OpenSWMM::Render
namespace	SymbolProps
	Canonical colour prop accessors for SymbolLayer prop bags (gap A1.2).
namespace	OpenSWMM::Render::SymbolProps

Functions
QColor	OpenSWMM::Render::SymbolProps::readColor (const QVariantMap &props, const QString &key, const QColor &fallback=QColor())
void	OpenSWMM::Render::SymbolProps::writeColor (QVariantMap &props, const QString &key, const QColor &c)
QColor	OpenSWMM::Render::SymbolProps::firstColor (const SymbolStyle &style, const QColor &fallback=QColor())
void	OpenSWMM::Render::SymbolProps::overrideColorInPlace (SymbolStyle &style, const QColor &c)

Detailed Description

A stack of SymbolLayer paint passes plus a layer-level opacity.

Author

Caleb Buahin caleb.nosp@m..bua.nosp@m.hin@g.nosp@m.mail.nosp@m..com

Date

2026

License\n GPL-3.0-or-later

    SymbolStyle is the unit a renderer returns from symbolFor() —
    it is what the layer's paint loop knows how to apply to one
    feature. The compositional model (a list of SymbolLayers) is
    the central design of §J.3: a single struct can describe both
    a uniform Qt::blue circle and a double-ringed manhole with a
    centre cross.

    opacity multiplies the per-SymbolLayer alpha so the whole stack
    can be faded in / out without touching each layer's props.

    Cross-slice: Slice BI Phase 8.13.6 (see GUI_IMPLEMENTATION_PLAN.md
    §J.3). Sub-phase 8.13.6.1 — interface + types only.