Class: QgsMapLayerLegend

class qgis.core.QgsMapLayerLegend(parent: QObject = None)

Bases: PyQt5.QtCore.QObject

Constructor for QgsMapLayerLegend

The QgsMapLayerLegend class is abstract interface for implementations of legends for one map layer.

Methods

childEvent

connectNotify

createLayerTreeModelLegendNodes

Returns list of legend nodes to be used for a particular layer tree layer node.

customEvent

defaultMeshLegend

Create new legend implementation for mesh layer

defaultRasterLegend

Create new legend implementation for raster layer

defaultVectorLegend

Create new legend implementation for vector layer

disconnectNotify

isSignalConnected

readXml

Reads configuration from a DOM element previously written by writeXml()

receivers

sender

senderSignalIndex

timerEvent

writeXml

Writes configuration to a DOM element, to be used later with readXml()

Signals

itemsChanged

Emitted when existing items/nodes got invalid and should be replaced by new ones [signal]

childEvent(self, QChildEvent)
connectNotify(self, QMetaMethod)
createLayerTreeModelLegendNodes(self, nodeLayer: QgsLayerTreeLayer)List[QgsLayerTreeModelLegendNode]

Returns list of legend nodes to be used for a particular layer tree layer node. Ownership is transferred to the caller.

Parameters

nodeLayer (QgsLayerTreeLayer) –

Return type

List[QgsLayerTreeModelLegendNode]

customEvent(self, QEvent)
defaultMeshLegend(ml: QgsMeshLayer)QgsMapLayerLegend

Create new legend implementation for mesh layer

Parameters

ml (QgsMeshLayer) –

Return type

QgsMapLayerLegend

defaultRasterLegend(rl: QgsRasterLayer)QgsMapLayerLegend

Create new legend implementation for raster layer

Parameters

rl (QgsRasterLayer) –

Return type

QgsMapLayerLegend

defaultVectorLegend(vl: QgsVectorLayer)QgsMapLayerLegend

Create new legend implementation for vector layer

Parameters

vl (QgsVectorLayer) –

Return type

QgsMapLayerLegend

disconnectNotify(self, QMetaMethod)
isSignalConnected(self, QMetaMethod)bool
itemsChanged

Emitted when existing items/nodes got invalid and should be replaced by new ones [signal]

readXml(self, elem: QDomElement, context: QgsReadWriteContext)

Reads configuration from a DOM element previously written by writeXml()

New in version 3.2.

Parameters
receivers(self, PYQT_SIGNAL)int
sender(self)QObject
senderSignalIndex(self)int
timerEvent(self, QTimerEvent)
writeXml(self, doc: QDomDocument, context: QgsReadWriteContext)QDomElement

Writes configuration to a DOM element, to be used later with readXml()

New in version 3.2.

Parameters
Return type

QDomElement