QgsLayerTreeRegistryBridge Class Reference

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

#include <qgslayertreeregistrybridge.h>

Inheritance diagram for QgsLayerTreeRegistryBridge:

Classes
struct	InsertionPoint
	A structure to define the insertion point to the layer tree. More...

Signals
void	addedLayersToLayerTree (const QList< QgsMapLayer * > &layers)
	Tell others we have just added layers to the tree (used in QGIS to auto-select first newly added layer)

Public Member Functions
	QgsLayerTreeRegistryBridge (QgsLayerTreeGroup *root, QgsProject *project, QObject *parent=nullptr)
	Create the instance that synchronizes given project with a layer tree root.
bool	isEnabled () const
Qgis::LayerTreeInsertionMethod	layerInsertionMethod () const
	Returns the insertion method used to add layers to the tree.
InsertionPoint	layerInsertionPoint () const
	Returns the insertion point used to add layers to the tree.
bool	newLayersVisible () const
void	setEnabled (bool enabled)
void	setLayerInsertionMethod (Qgis::LayerTreeInsertionMethod method)
	Sets the insertion method used to add layers to the tree.
void	setLayerInsertionPoint (const InsertionPoint &insertionPoint)
	Set where the new layers should be inserted - can be used to follow current selection.
Q_DECL_DEPRECATED void	setLayerInsertionPoint (QgsLayerTreeGroup *parentGroup, int index)
	Set where the new layers should be inserted - can be used to follow current selection.
void	setNewLayersVisible (bool enabled)

Protected Slots
void	groupRemovedChildren ()
void	groupWillRemoveChildren (QgsLayerTreeNode *node, int indexFrom, int indexTo)
void	layersAdded (const QList< QgsMapLayer * > &layers)
void	layersWillBeRemoved (const QStringList &layerIds)
void	removeLayersFromRegistry (const QStringList &layerIds)

Protected Attributes
bool	mEnabled
Qgis::LayerTreeInsertionMethod	mInsertionMethod = Qgis::LayerTreeInsertionMethod::AboveInsertionPoint
QPointer< QgsLayerTreeGroup >	mInsertionPointGroup
int	mInsertionPointPosition = 0
QStringList	mLayerIdsForRemoval
bool	mNewLayersVisible
QgsProject *	mProject = nullptr
bool	mRegistryRemovingLayers
QgsLayerTreeGroup *	mRoot = nullptr

Detailed Description

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.

Definition at line 45 of file qgslayertreeregistrybridge.h.

Constructor & Destructor Documentation

QgsLayerTreeRegistryBridge()

QgsLayerTreeRegistryBridge::QgsLayerTreeRegistryBridge ( QgsLayerTreeGroup *  root, QgsProject *  project, QObject *  parent = nullptr  )

explicit

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

Definition at line 24 of file qgslayertreeregistrybridge.cpp.

Member Function Documentation

addedLayersToLayerTree

void QgsLayerTreeRegistryBridge::addedLayersToLayerTree ( const QList< QgsMapLayer * > &  layers )

signal

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

groupRemovedChildren

void QgsLayerTreeRegistryBridge::groupRemovedChildren ( )

protectedslot

Definition at line 176 of file qgslayertreeregistrybridge.cpp.

groupWillRemoveChildren

void QgsLayerTreeRegistryBridge::groupWillRemoveChildren ( QgsLayerTreeNode *  node, int  indexFrom, int  indexTo  )

protectedslot

Definition at line 163 of file qgslayertreeregistrybridge.cpp.

isEnabled()

bool QgsLayerTreeRegistryBridge::isEnabled ( ) const

inline

Definition at line 69 of file qgslayertreeregistrybridge.h.

layerInsertionMethod()

Qgis::LayerTreeInsertionMethod QgsLayerTreeRegistryBridge::layerInsertionMethod ( ) const

inline

Returns the insertion method used to add layers to the tree.

Since

QGIS 3.30

Definition at line 104 of file qgslayertreeregistrybridge.h.

layerInsertionPoint()

QgsLayerTreeRegistryBridge::InsertionPoint QgsLayerTreeRegistryBridge::layerInsertionPoint

(

)

const

Returns the insertion point used to add layers to the tree.

Since

QGIS 3.42

Definition at line 52 of file qgslayertreeregistrybridge.cpp.

layersAdded

void QgsLayerTreeRegistryBridge::layersAdded ( const QList< QgsMapLayer * > &  layers )

protectedslot

Definition at line 58 of file qgslayertreeregistrybridge.cpp.

layersWillBeRemoved

void QgsLayerTreeRegistryBridge::layersWillBeRemoved ( const QStringList &  layerIds )

protectedslot

Definition at line 124 of file qgslayertreeregistrybridge.cpp.

newLayersVisible()

bool QgsLayerTreeRegistryBridge::newLayersVisible ( ) const

inline

Definition at line 72 of file qgslayertreeregistrybridge.h.

removeLayersFromRegistry

void QgsLayerTreeRegistryBridge::removeLayersFromRegistry ( const QStringList &  layerIds )

protectedslot

Definition at line 198 of file qgslayertreeregistrybridge.cpp.

setEnabled()

void QgsLayerTreeRegistryBridge::setEnabled ( bool  enabled )

inline

Definition at line 68 of file qgslayertreeregistrybridge.h.

setLayerInsertionMethod()

void QgsLayerTreeRegistryBridge::setLayerInsertionMethod ( Qgis::LayerTreeInsertionMethod  method )

inline

Sets the insertion method used to add layers to the tree.

Since

QGIS 3.30

Definition at line 98 of file qgslayertreeregistrybridge.h.

setLayerInsertionPoint() [1/2]

void QgsLayerTreeRegistryBridge::setLayerInsertionPoint

(

const InsertionPoint &

insertionPoint

)

Set where the new layers should be inserted - can be used to follow current selection.

By default it is root group with zero index.

Since

QGIS 3.10

Definition at line 46 of file qgslayertreeregistrybridge.cpp.

setLayerInsertionPoint() [2/2]

void QgsLayerTreeRegistryBridge::setLayerInsertionPoint	(	QgsLayerTreeGroup *	parentGroup,
		int	index
	)

Set where the new layers should be inserted - can be used to follow current selection.

By default it is root group with zero index.

Deprecated:

QGIS 3.10. Use setLayerInsertionPoint( const InsertionPoint &insertionPoint ) instead.

Definition at line 40 of file qgslayertreeregistrybridge.cpp.

setNewLayersVisible()

void QgsLayerTreeRegistryBridge::setNewLayersVisible ( bool  enabled )

inline

Definition at line 71 of file qgslayertreeregistrybridge.h.

Member Data Documentation

mEnabled

bool QgsLayerTreeRegistryBridge::mEnabled

protected

Definition at line 127 of file qgslayertreeregistrybridge.h.

mInsertionMethod

Qgis::LayerTreeInsertionMethod QgsLayerTreeRegistryBridge::mInsertionMethod = Qgis::LayerTreeInsertionMethod::AboveInsertionPoint

protected

Definition at line 133 of file qgslayertreeregistrybridge.h.

mInsertionPointGroup

QPointer< QgsLayerTreeGroup > QgsLayerTreeRegistryBridge::mInsertionPointGroup

protected

Definition at line 130 of file qgslayertreeregistrybridge.h.

mInsertionPointPosition

int QgsLayerTreeRegistryBridge::mInsertionPointPosition = 0

protected

Definition at line 131 of file qgslayertreeregistrybridge.h.

mLayerIdsForRemoval

QStringList QgsLayerTreeRegistryBridge::mLayerIdsForRemoval

protected

Definition at line 125 of file qgslayertreeregistrybridge.h.

mNewLayersVisible

bool QgsLayerTreeRegistryBridge::mNewLayersVisible

protected

Definition at line 128 of file qgslayertreeregistrybridge.h.

mProject

QgsProject* QgsLayerTreeRegistryBridge::mProject = nullptr

protected

Definition at line 124 of file qgslayertreeregistrybridge.h.

mRegistryRemovingLayers

bool QgsLayerTreeRegistryBridge::mRegistryRemovingLayers

protected

Definition at line 126 of file qgslayertreeregistrybridge.h.

mRoot

QgsLayerTreeGroup* QgsLayerTreeRegistryBridge::mRoot = nullptr

protected

Definition at line 123 of file qgslayertreeregistrybridge.h.

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The documentation for this class was generated from the following files:

• /build/qgis-3.43.0+git20250324+3ee7834ace6+99sid/src/core/layertree/qgslayertreeregistrybridge.h
• /build/qgis-3.43.0+git20250324+3ee7834ace6+99sid/src/core/layertree/qgslayertreeregistrybridge.cpp