markersymbollayer.h File Reference

Typed accessors for a SimpleMarker SymbolLayer (Slice Z.4). More...

#include "render/markershape.h"
#include "render/symbollayer.h"
#include <QColor>
#include <QFont>
#include <QPen>
#include <QPointF>

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Classes
struct	OpenSWMM::Render::MarkerSymbolLayerSpec
	Typed snapshot of a SimpleMarker SymbolLayer's props. More...

Namespaces
namespace	OpenSWMM
namespace	OpenSWMM::Render

Detailed Description

Typed accessors for a SimpleMarker SymbolLayer (Slice Z.4).

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

    The compositional SymbolStyle stores SymbolLayer instances as
    {kind, QVariantMap props} pairs. MarkerSymbolLayerSpec is the
    typed view a Rule's Marker subpanel reads / writes: shape +
    size + fill + outline QPen + rotation + offset, plus typed
    conversion to/from the property bag.

    Canonical property keys (stored on SymbolLayer::props for the
    SimpleMarker / Plus / MarkerLine kinds):
      - "shape"           → int (cast of MarkerShape)
      - "size"            → qreal (px, outer extent)
      - "fillColor"       → QColor
      - "outlineColor"    → QColor
      - "outlineWidth"    → qreal (px)
      - "outlinePenStyle" → int (cast of Qt::PenStyle)
      - "rotationDeg"     → qreal (clockwise)
      - "offsetX"         → qreal (px, signed)
      - "offsetY"         → qreal (px, signed)
      - "showLabel"       → bool          (Slice SS.3)
      - "labelFont"       → QFont         (Slice SS.3)
      - "labelColor"      → QColor        (Slice SS.3)

    Property keys are stable — they survive .oswp round-trips.
    Data-defined overrides target these same keys via
    SymbolLayer::dataDefinedOverrides (e.g. binding `"size"` to
    `sqrt(flow)/max_sqrt`).