Subgroup: Data

Class: QgsDataDefinedValueDialog

class qgis.gui.QgsDataDefinedValueDialog(symbolList: Iterable[QgsSymbol], layer: QgsVectorLayer, label: str)

Bases: PyQt5.QtWidgets.QDialog

Constructor

Parameters:
  • symbolList – must not be empty
  • layer – must not be null
  • label – value label

Utility classes for “en masse” size definition

Methods

context Returns the context in which the symbol widget is shown, e.
dataDefinedChanged
setContext Sets the context in which the symbol widget is shown, e.
symbolDataDefined
vectorLayer Returns the vector layer associated with the widget.

Signals

Attributes

context(self) → QgsSymbolWidgetContext

Returns the context in which the symbol widget is shown, e.g., the associated map canvas and expression contexts.

See also

setContext()

New in version 3.0.

dataDefinedChanged(self)
setContext(self, context: QgsSymbolWidgetContext)

Sets the context in which the symbol widget is shown, e.g., the associated map canvas and expression contexts.

Parameters:context – symbol widget context

See also

context()

New in version 3.0.

symbolDataDefined()
vectorLayer(self) → QgsVectorLayer

Returns the vector layer associated with the widget.

New in version 2.12.