QgsIFeatureSelectionManager Class Reference

Is an interface class to abstract feature selection handling. More...

#include <qgsifeatureselectionmanager.h>

Inheritance diagram for QgsIFeatureSelectionManager:

Signals
void	selectionChanged (const QgsFeatureIds &selected, const QgsFeatureIds &deselected, bool clearAndSelect)
	This signal is emitted when selection was changed. More...

Public Member Functions
	QgsIFeatureSelectionManager (QObject *parent)
virtual void	deselect (const QgsFeatureIds &ids)=0
	Deselect features by feature ids. More...
virtual void	select (const QgsFeatureIds &ids)=0
	Select features by feature ids. More...
virtual int	selectedFeatureCount ()=0
	Returns the number of features that are selected in this layer. More...
virtual const QgsFeatureIds &	selectedFeatureIds () const =0
	Returns reference to identifiers of selected features. More...
virtual void	setSelectedFeatures (const QgsFeatureIds &ids)=0
	Change selection to the new set of features. More...

Detailed Description

Is an interface class to abstract feature selection handling.

e.g. QgsVectorLayer implements this interface to manage its selections.

Definition at line 31 of file qgsifeatureselectionmanager.h.

Constructor & Destructor Documentation

QgsIFeatureSelectionManager::QgsIFeatureSelectionManager ( QObject *  parent )

inline

Definition at line 36 of file qgsifeatureselectionmanager.h.

Member Function Documentation

virtual void QgsIFeatureSelectionManager::deselect ( const QgsFeatureIds &  ids )

pure virtual

Deselect features by feature ids.

Implemented in QgsGenericFeatureSelectionManager, and QgsVectorLayerSelectionManager.

virtual void QgsIFeatureSelectionManager::select ( const QgsFeatureIds &  ids )

pure virtual

Select features by feature ids.

Implemented in QgsGenericFeatureSelectionManager, and QgsVectorLayerSelectionManager.

virtual int QgsIFeatureSelectionManager::selectedFeatureCount ( )

pure virtual

Returns the number of features that are selected in this layer.

Implemented in QgsGenericFeatureSelectionManager, and QgsVectorLayerSelectionManager.

virtual const QgsFeatureIds& QgsIFeatureSelectionManager::selectedFeatureIds ( ) const

pure virtual

Returns reference to identifiers of selected features.

Returns

A list of QgsFeatureId's

See also

setSelectedFeatures()

Implemented in QgsGenericFeatureSelectionManager, and QgsVectorLayerSelectionManager.

void QgsIFeatureSelectionManager::selectionChanged ( const QgsFeatureIds &  selected, const QgsFeatureIds &  deselected, bool  clearAndSelect  )

signal

This signal is emitted when selection was changed.

Parameters

selected	Newly selected feature ids
deselected	Ids of all features which have previously been selected but are not any more
clearAndSelect	In case this is set to true, the old selection was dismissed and the new selection corresponds to selected

virtual void QgsIFeatureSelectionManager::setSelectedFeatures ( const QgsFeatureIds &  ids )

pure virtual

Change selection to the new set of features.

Dismisses the current selection. Will emit the selectionChanged( const QgsFeatureIds&, const QgsFeatureIds&, bool ) signal with the clearAndSelect flag set.

Parameters

ids	The ids which will be the new selection

See also

selectedFeatureIds()

Implemented in QgsGenericFeatureSelectionManager, and QgsVectorLayerSelectionManager.

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

• /build/qgis-3.4.15+24xenial/src/gui/attributetable/qgsifeatureselectionmanager.h