legendlayertreemodel.h File Reference

Slice BB Phase 8.6.16 — QAbstractItemModel exposing a MapCanvas's layers as a two-level tree (Layer → LegendSymbolItem) for the LegendPropertiesDialog Layers tab. More...

#include <QAbstractItemModel>
#include <QColor>
#include <QList>
#include <QPointer>
#include <QString>
#include <QVector>

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Classes
class	openswmmvis::ui::LegendLayerTreeModel

Namespaces
namespace	OpenSWMM
namespace	OpenSWMM::Render
namespace	openswmmvis
namespace	openswmmvis::ui

Detailed Description

Slice BB Phase 8.6.16 — QAbstractItemModel exposing a MapCanvas's layers as a two-level tree (Layer → LegendSymbolItem) for the LegendPropertiesDialog Layers tab.

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 model is a thin view over the canvas's live layer list + each layer's IFeatureRenderer::legendSymbolItems(). It does not own state; per-class colour edits write through to the renderer via SetRendererClassColorCommand on the canvas's MapUndoStack, and the model resets in response to the layer's repaintRequested signal so external edits show up live.

Columns: Col 0 — "Item" (layer name at level 0, item label at level 1) Col 1 — "Color" (swatch + opens QColorDialog when editable)

Layer-header rows are not editable. Item rows are editable in the Color column iff the parent layer's renderer reports supportsClassEdit(Color).