QgsWmsLegendNode class

Implementation of legend node interface for displaying WMS legend entries.

Base classes

class QgsLayerTreeModelLegendNode: The QgsLegendRendererItem class is abstract interface for legend items returned from QgsMapLayerLegend implementation.

QgsWmsLegendNode(QgsLayerTreeLayer* nodeLayer, QObject* parent = nullptr): Constructor for QgsWmsLegendNode.

auto data(int role) const -> QVariant override: Returns data associated with the item. Must be implemented in derived class.
auto drawSymbol(const QgsLegendSettings& settings, ItemContext* ctx, double itemHeight) const -> QSizeF override: Draws symbol on the left side of the item.
void invalidateMapBasedData() override: Notification from model that information from associated map view has changed.

Constructor for QgsWmsLegendNode.

Parameters
nodeLayer	layer node
parent	attach a parent QObject to the legend node.

Draws symbol on the left side of the item.

Parameters
settings	Legend layout configuration
ctx	Context for rendering - may be null if only doing layout without actual rendering
itemHeight	Minimal height of the legend item - used for correct positioning when rendering
Returns	Real size of the symbol (may be bigger than "normal" symbol size from settings)

Notification from model that information from associated map view has changed.

Default implementation does nothing.