Class: QgsLayerTreeRegistryBridge¶

class qgis.core.QgsLayerTreeRegistryBridge(root: QgsLayerTreeGroup, project: QgsProject, parent: QObject = None)¶

Bases: PyQt5.QtCore.QObject

Create the instance that synchronizes given project with a layer tree root

Listens to the updates in map layer registry and does changes in layer tree.

When connected to a layer tree, any layers added to the map layer registry will be also added to the layer tree. Similarly, map layers that are removed from registry will be removed from the layer tree.

If a layer is completely removed from the layer tree, it will be also removed from the map layer registry.

New in version 2.4: Enums

Methods

`childEvent`
`connectNotify`
`customEvent`
`disconnectNotify`
`groupRemovedChildren`
`groupWillRemoveChildren`
`isEnabled`
`isSignalConnected`
`layersAdded`
`layersWillBeRemoved`
`newLayersVisible`
`receivers`
`removeLayersFromRegistry`
`sender`
`senderSignalIndex`
`setEnabled`
`setLayerInsertionPoint`	Set where the new layers should be inserted - can be used to follow current selection.
`setNewLayersVisible`
`timerEvent`

Signals

addedLayersToLayerTree

Tell others we have just added layers to the tree (used in QGIS to auto-select first newly added layer)

Attributes

addedLayersToLayerTree¶: Tell others we have just added layers to the tree (used in QGIS to auto-select first newly added layer)

New in version 2.6: [signal]

childEvent()¶

connectNotify()¶

customEvent()¶

disconnectNotify()¶

groupRemovedChildren(self)¶

groupWillRemoveChildren(self, node: QgsLayerTreeNode, indexFrom: int, indexTo: int)¶

isEnabled(self) → bool¶

isSignalConnected()¶

layersAdded(self, layers: Iterable[QgsMapLayer])¶

layersWillBeRemoved(self, layerIds: Iterable[str])¶

newLayersVisible(self) → bool¶

receivers()¶

removeLayersFromRegistry(self, layerIds: Iterable[str])¶

sender()¶

senderSignalIndex()¶

setEnabled(self, enabled: bool)¶

setLayerInsertionPoint(self, parentGroup: QgsLayerTreeGroup, index: int)¶: Set where the new layers should be inserted - can be used to follow current selection. By default it is root group with zero index.

setNewLayersVisible(self, enabled: bool)¶

timerEvent()¶