Methods in this class are used to handle basic operations on vector layers. More...

#include <qgsvectorlayertools.h>

Inheritance diagram for QgsVectorLayerTools:

[legend]

Public Member Functions
	QgsVectorLayerTools ()

virtual bool	addFeature (QgsVectorLayer layer, const QgsAttributeMap &defaultValues=QgsAttributeMap(), const QgsGeometry &defaultGeometry=QgsGeometry(), QgsFeature feature=nullptr, QWidget *parentWidget=nullptr, bool showModal=true, bool hideParent=false) const
	This method should/will be called, whenever a new feature will be added to the layer.

virtual bool	addFeatureV2 (QgsVectorLayer layer, const QgsAttributeMap &defaultValues=QgsAttributeMap(), const QgsGeometry &defaultGeometry=QgsGeometry(), QgsFeature feature=nullptr, const QgsVectorLayerToolsContext &context=QgsVectorLayerToolsContext()) const
	This method should/will be called, whenever a new feature will be added to the layer.

virtual bool	copyMoveFeatures (QgsVectorLayer layer, QgsFeatureRequest &request, double dx=0, double dy=0, QString errorMsg=nullptr, const bool topologicalEditing=false, QgsVectorLayer topologicalLayer=nullptr, QString childrenInfoMsg=nullptr) const
	Copy and move features with defined translation.

bool	forceSuppressFormPopup () const
	Returns force suppress form popup status.

QgsProject *	project () const
	Returns the project to be used by operations when needed.

virtual bool	saveEdits (QgsVectorLayer *layer) const =0
	Should be called, when the features should be committed but the editing session is not ended.

void	setForceSuppressFormPopup (bool forceSuppressFormPopup)
	Sets force suppress form popup status to forceSuppressFormPopup.

void	setProject (QgsProject *project)
	Sets the project to be used by operations when needed.

virtual bool	startEditing (QgsVectorLayer *layer) const =0
	This will be called, whenever a vector layer should be switched to edit mode.

virtual bool	stopEditing (QgsVectorLayer *layer, bool allowCancel=true) const =0
	Will be called, when an editing session is ended and the features should be committed.

Detailed Description

Methods in this class are used to handle basic operations on vector layers.

With an implementation of this class, parts of the application can ask for an operation to be done and the implementation will then take care of it.

Reimplement this class, if you need to have custom checks or GUI elements in your application.

Definition at line 42 of file qgsvectorlayertools.h.

Constructor & Destructor Documentation

◆ QgsVectorLayerTools()

QgsVectorLayerTools::QgsVectorLayerTools ( )

Definition at line 25 of file qgsvectorlayertools.cpp.

Member Function Documentation

◆ addFeature()

virtual bool QgsVectorLayerTools::addFeature	(	QgsVectorLayer *	layer,
		const QgsAttributeMap &	defaultValues = `QgsAttributeMap()`,
		const QgsGeometry &	defaultGeometry = `QgsGeometry()`,
		QgsFeature *	feature = `nullptr`,
		QWidget *	parentWidget = `nullptr`,
		bool	showModal = `true`,
		bool	hideParent = `false`
	)		const

inlinevirtual

This method should/will be called, whenever a new feature will be added to the layer.

Parameters

layer	The layer to which the feature should be added
defaultValues	Default values for the feature to add
defaultGeometry	A default geometry to add to the feature
feature	Updated feature after adding will be written back to this
parentWidget	The widget calling this function to be passed to the used dialog
showModal	If the used dialog should be modal or not
hideParent	If the parent widget should be hidden, when the used dialog is opened

Returns: true in case of success, false if the operation failed/was aborted

Note: addFeature or addFeatureV2 must be overwritten when implementing a class inheriting from QgsVectorLayerTools

Definition at line 65 of file qgsvectorlayertools.h.

◆ addFeatureV2()

virtual bool QgsVectorLayerTools::addFeatureV2	(	QgsVectorLayer *	layer,
		const QgsAttributeMap &	defaultValues = `QgsAttributeMap()`,
		const QgsGeometry &	defaultGeometry = `QgsGeometry()`,
		QgsFeature *	feature = `nullptr`,
		const QgsVectorLayerToolsContext &	context = `QgsVectorLayerToolsContext()`
	)		const

inlinevirtual

This method should/will be called, whenever a new feature will be added to the layer.

Parameters

layer	The layer to which the feature should be added
defaultValues	Default values for the feature to add
defaultGeometry	A default geometry to add to the feature
feature	Updated feature after adding will be written back to this
context	A context object to be used for e.g. to calculate feature expression-based values (since QGIS 3.38)

Returns: true in case of success, false if the operation failed/was aborted

Note: addFeature or addFeatureV2 must be overwritten when implementing a class inheriting from QgsVectorLayerTools

Since: QGIS 3.38

Reimplemented in QgsTrackedVectorLayerTools.

Definition at line 87 of file qgsvectorlayertools.h.

◆ copyMoveFeatures()

bool QgsVectorLayerTools::copyMoveFeatures	(	QgsVectorLayer *	layer,
		QgsFeatureRequest &	request,
		double	dx = `0`,
		double	dy = `0`,
		QString *	errorMsg = `nullptr`,
		const bool	topologicalEditing = `false`,
		QgsVectorLayer *	topologicalLayer = `nullptr`,
		QString *	childrenInfoMsg = `nullptr`
	)		const

virtual

Copy and move features with defined translation.

Parameters

layer	The layer
request	The request for the features to be moved. It will be assigned to a new feature request with the newly copied features.
dx	The translation on x
dy	The translation on y
errorMsg	If given, it will contain the error message
topologicalEditing	If `true`, the function will perform topological editing of the vertices of layer on layer and topologicalLayer
topologicalLayer	The layer where vertices from the moved features of layer will be added
childrenInfoMsg	If given, it will contain messages related to the creation of child features

Returns: true if all features could be copied.

Reimplemented in QgsTrackedVectorLayerTools.

Definition at line 29 of file qgsvectorlayertools.cpp.

◆ forceSuppressFormPopup()

bool QgsVectorLayerTools::forceSuppressFormPopup ( ) const

Returns force suppress form popup status.

Returns: true if force suppress form popup is set.

Since: QGIS 3.14

Definition at line 154 of file qgsvectorlayertools.cpp.

◆ project()

QgsProject * QgsVectorLayerTools::project ( ) const

inline

Returns the project to be used by operations when needed.

Since: QGIS 3.34

Definition at line 180 of file qgsvectorlayertools.h.

◆ saveEdits()

virtual bool QgsVectorLayerTools::saveEdits ( QgsVectorLayer * layer ) const

pure virtual

Should be called, when the features should be committed but the editing session is not ended.

Parameters

layer The layer to commit

Returns: true if successful

Implemented in QgsTrackedVectorLayerTools.

◆ setForceSuppressFormPopup()

void QgsVectorLayerTools::setForceSuppressFormPopup ( bool forceSuppressFormPopup )

Sets force suppress form popup status to forceSuppressFormPopup.

This flag will override the layer and general settings regarding the automatic opening of the attribute form dialog when digitizing is completed.

Since: QGIS 3.14

Definition at line 159 of file qgsvectorlayertools.cpp.

◆ setProject()

void QgsVectorLayerTools::setProject ( QgsProject * project )

inline

Sets the project to be used by operations when needed.

Since: QGIS 3.34

Definition at line 173 of file qgsvectorlayertools.h.

◆ startEditing()

virtual bool QgsVectorLayerTools::startEditing ( QgsVectorLayer * layer ) const

pure virtual

This will be called, whenever a vector layer should be switched to edit mode.

Check the providers capability to edit in here. If successful layer->startEditing() will be called and true returned.

Parameters

layer The layer on which to start an edit session

Returns: true, if the editing session was started

Implemented in QgsTrackedVectorLayerTools.

◆ stopEditing()

virtual bool QgsVectorLayerTools::stopEditing	(	QgsVectorLayer *	layer,
		bool	allowCancel = `true`
	)		const

pure virtual

Will be called, when an editing session is ended and the features should be committed.

Appropriate dialogs should be shown like

Parameters

layer	The layer to commit
allowCancel	`true` if a cancel button should be offered

Returns: true if successful

Implemented in QgsTrackedVectorLayerTools.

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

/home/fischer/src/qgis-3.38/src/core/vector/qgsvectorlayertools.h
/home/fischer/src/qgis-3.38/src/core/vector/qgsvectorlayertools.cpp

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ QgsVectorLayerTools()

Member Function Documentation

◆ addFeature()

◆ addFeatureV2()

◆ copyMoveFeatures()

◆ forceSuppressFormPopup()

◆ project()

◆ saveEdits()

◆ setForceSuppressFormPopup()

◆ setProject()

◆ startEditing()

◆ stopEditing()