Class: QgsDataDefinedValueDialog

class qgis.gui.QgsDataDefinedValueDialog

Bases: PyQt5.QtWidgets.QDialog

Utility classes for “en masse” size definition.

QgsDataDefinedValueDialog(symbolList: Iterable[QgsSymbol], layer: QgsVectorLayer, label: str) Constructor

Parameters
  • symbolList – must not be empty

  • layer – must not be None

  • label

    value label

    Methods

    context

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

    dataDefinedChanged

    setContext

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

    symbolDataDefined

    vectorLayer

    Returns the vector layer associated with the widget.

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.

Return type

QgsSymbolWidgetContext

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 (QgsSymbolWidgetContext) – 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.

Return type

QgsVectorLayer