Class: QgsRendererRegistry

class qgis.core.QgsRendererRegistry

Bases: sip.wrapper

Registry of renderers.

QgsRendererRegistry is not usually directly created, but rather accessed through QgsApplication.rendererRegistry().

Methods

addRenderer

Adds a renderer to the registry.

removeRenderer

Removes a renderer from registry.

rendererMetadata

Returns the metadata for a specified renderer.

renderersList

Returns a list of available renderers.

addRenderer(self, metadata: QgsRendererAbstractMetadata) bool

Adds a renderer to the registry. Takes ownership of the metadata object.

Parameters:

metadata (QgsRendererAbstractMetadata) – renderer metadata

Return type:

bool

Returns:

True if renderer was added successfully, or False if renderer could not be added (e.g., a renderer with a duplicate name already exists)

removeRenderer(self, rendererName: str) bool

Removes a renderer from registry.

Parameters:

rendererName (str) – name of renderer to remove from registry

Return type:

bool

Returns:

True if renderer was successfully removed, or False if matching renderer could not be found

rendererMetadata(self, rendererName: str) QgsRendererAbstractMetadata

Returns the metadata for a specified renderer. Returns None if a matching renderer was not found in the registry.

Parameters:

rendererName (str) –

Return type:

QgsRendererAbstractMetadata

renderersList(self, layerTypes: QgsRendererAbstractMetadata.LayerTypes | QgsRendererAbstractMetadata.LayerType = QgsRendererAbstractMetadata.All) List[str]

Returns a list of available renderers.

Parameters:

layerTypes (Union[QgsRendererAbstractMetadata.LayerTypes) – flags to filter the renderers by compatible layer types

renderersList(self, layer: QgsVectorLayer) -> List[str] Returns a list of available renderers which are compatible with a specified layer.

Parameters:

layer – vector layer

New in version 2.16.

Return type:

List[str]