labelpainter.h File Reference

Slice US.B3 (UNIFIED_STYLING plan B3) — the one place every layer paints a text label, so halo / background / scale-gating / placement behave identically across the 1D model, 1D results, and 2D results paint paths. More...

#include "render/labelconfig.h"
#include <QPointF>
#include <QRectF>
#include <QSizeF>
#include <QString>

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Classes
class	OpenSWMM::Render::LabelPainter
	Stateless label-drawing helpers shared by every paint path. More...

Namespaces
namespace	OpenSWMM
namespace	OpenSWMM::Render

Detailed Description

Slice US.B3 (UNIFIED_STYLING plan B3) — the one place every layer paints a text label, so halo / background / scale-gating / placement behave identically across the 1D model, 1D results, and 2D results paint paths.

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

Pure QPainter helper driven by a LabelConfig value — no MapCanvas or layer coupling. Callers compute the canvas scale denominator (MapCanvas::scaleDenominator) and pass it to scaleVisible(); the draw routine renders constant-point-size text in screen space (the GIS standard — labels don't grow/shrink with zoom).

Draw order is fixed: background rounded-rect → stroked-path halo → glyph fill, so the halo reads over a busy basemap and the optional background frame sits behind everything.