QgsGroupedFeatureFilterProvider Class Reference

A filter filter provider grouping several filter providers. More...

#include <qgsgroupedfeaturefilterprovider.h>

Inheritance diagram for QgsGroupedFeatureFilterProvider:

Public Member Functions
	QgsGroupedFeatureFilterProvider ()=default
	Constructor.
QgsGroupedFeatureFilterProvider &	addProvider (const QgsFeatureFilterProvider *provider)
	Add another filter provider to the group.
QgsGroupedFeatureFilterProvider *	clone () const override
	Create a clone of the feature filter provider.
Q_DECL_DEPRECATED void	filterFeatures (const QgsVectorLayer *layer, QgsFeatureRequest &filterFeatures) const override
	Add additional filters to the feature request to further restrict the features returned by the request.
void	filterFeatures (const QString &layerId, QgsFeatureRequest &filterFeatures) const override
	Add additional filters to the feature request to further restrict the features returned by the request.
Q_DECL_DEPRECATED bool	isFilterThreadSafe () const override
	Returns true if the filterFeature function is thread safe, which will lead to reliance on layer ID instead of the raw layer pointer.
QStringList	layerAttributes (const QgsVectorLayer *layer, const QStringList &attributes) const override
	Returns the list of visible attribute names from a list of attributes names for the given layer.
Public Member Functions inherited from QgsFeatureFilterProvider
	QgsFeatureFilterProvider ()=default
virtual	~QgsFeatureFilterProvider ()=default

Detailed Description

A filter filter provider grouping several filter providers.

Since

QGIS 4.0

Definition at line 32 of file qgsgroupedfeaturefilterprovider.h.

Constructor & Destructor Documentation

QgsGroupedFeatureFilterProvider()

QgsGroupedFeatureFilterProvider::QgsGroupedFeatureFilterProvider ( )

default

Constructor.

Member Function Documentation

addProvider()

QgsGroupedFeatureFilterProvider & QgsGroupedFeatureFilterProvider::addProvider

(

const QgsFeatureFilterProvider *

provider

)

Add another filter provider to the group.

Parameters

provider

The provider to add

Returns

itself

Definition at line 89 of file qgsgroupedfeaturefilterprovider.cpp.

clone()

QgsGroupedFeatureFilterProvider * QgsGroupedFeatureFilterProvider::clone ( ) const

overridevirtual

Create a clone of the feature filter provider.

Returns

a new clone

Implements QgsFeatureFilterProvider.

Definition at line 82 of file qgsgroupedfeaturefilterprovider.cpp.

filterFeatures() [1/2]

void QgsGroupedFeatureFilterProvider::filterFeatures ( const QgsVectorLayer *  layer, QgsFeatureRequest &  featureRequest  ) const

overridevirtual

Add additional filters to the feature request to further restrict the features returned by the request.

Derived classes must implement this method.

Parameters

layer	the layer to filter
featureRequest	the feature request to update

Deprecated:

QGIS 4.0. Use the layer ID variant.

Reimplemented from QgsFeatureFilterProvider.

Definition at line 36 of file qgsgroupedfeaturefilterprovider.cpp.

filterFeatures() [2/2]

void QgsGroupedFeatureFilterProvider::filterFeatures ( const QString &  layerId, QgsFeatureRequest &  featureRequest  ) const

overridevirtual

Add additional filters to the feature request to further restrict the features returned by the request.

Derived classes must implement this method.

Parameters

layerId	the layer ID to filter
featureRequest	the feature request to update

Since

QGIS 4.0

Reimplemented from QgsFeatureFilterProvider.

Definition at line 58 of file qgsgroupedfeaturefilterprovider.cpp.

isFilterThreadSafe()

bool QgsGroupedFeatureFilterProvider::isFilterThreadSafe ( ) const

overridevirtual

Returns true if the filterFeature function is thread safe, which will lead to reliance on layer ID instead of the raw layer pointer.

Since

QGIS 4.0

Deprecated:

QGIS 4.0

Reimplemented from QgsFeatureFilterProvider.

Definition at line 22 of file qgsgroupedfeaturefilterprovider.cpp.

layerAttributes()

QStringList QgsGroupedFeatureFilterProvider::layerAttributes ( const QgsVectorLayer *  layer, const QStringList &  attributes  ) const

overridevirtual

Returns the list of visible attribute names from a list of attributes names for the given layer.

Since

QGIS 3.18

Implements QgsFeatureFilterProvider.

Definition at line 71 of file qgsgroupedfeaturefilterprovider.cpp.

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

• /build/qgis-3.99.0+git20250714+9e5f463f1a9+99sid/src/core/qgsgroupedfeaturefilterprovider.h
• /build/qgis-3.99.0+git20250714+9e5f463f1a9+99sid/src/core/qgsgroupedfeaturefilterprovider.cpp