18#ifndef QGSFEATUREFILTERPROVIDER_H
19#define QGSFEATUREFILTERPROVIDER_H
71 Q_UNUSED( featureRequest )
84 Q_UNUSED( featureRequest )
Abstract interface for use by classes that filter the features or attributes of a layer.
virtual ~QgsFeatureFilterProvider()=default
virtual void filterFeatures(const QString &layerId, QgsFeatureRequest &featureRequest) const
Add additional filters to the feature request to further restrict the features returned by the reques...
virtual QStringList layerAttributes(const QgsVectorLayer *layer, const QStringList &attributes) const =0
Returns the list of visible attribute names from a list of attributes names for the given layer.
virtual Q_DECL_DEPRECATED void filterFeatures(const QgsVectorLayer *layer, QgsFeatureRequest &featureRequest) const
Add additional filters to the feature request to further restrict the features returned by the reques...
virtual Q_DECL_DEPRECATED bool isFilterThreadSafe() const
Returns true if the filterFeature function is thread safe, which will lead to reliance on layer ID in...
QgsFeatureFilterProvider()=default
virtual QgsFeatureFilterProvider * clone() const =0
Create a clone of the feature filter provider.
Wraps a request for features to a vector layer (or directly its vector data provider).
Represents a vector layer which manages a vector based dataset.