QgsDataDefinedSizeLegendWidget class

Widget for configuration of appearance of legend for marker symbols with data-defined size.

Contents

Base classes

class QgsPanelWidget
Base class for any widget that can be shown as a inline panel.

Constructors, destructors, conversion operators

QgsDataDefinedSizeLegendWidget(const QgsDataDefinedSizeLegend* ddsLegend, const QgsProperty& ddSize, QgsMarkerSymbol* overrideSymbol, QgsMapCanvas* canvas = nullptr, QWidget* parent = nullptr) explicit
Creates the dialog and initializes the content to what is passed in the legend configuration (may be null).

Public functions

auto dataDefinedSizeLegend() const -> QgsDataDefinedSizeLegend*
Returns configuration as set up in the dialog (may be null). Ownership is passed to the caller.

Function documentation

QgsDataDefinedSizeLegendWidget::QgsDataDefinedSizeLegendWidget(const QgsDataDefinedSizeLegend* ddsLegend, const QgsProperty& ddSize, QgsMarkerSymbol* overrideSymbol, QgsMapCanvas* canvas = nullptr, QWidget* parent = nullptr) explicit

Creates the dialog and initializes the content to what is passed in the legend configuration (may be null).

The ddSize argument determines scaling of the marker symbol - it should have a size scale transformer assigned to know the range of sizes. The overrideSymbol argument may override the source symbol: this is useful in case when the symbol is given from outside rather than being set inside QgsDataDefinedSizeLegend.