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93 lines
3.0 KiB
Plaintext
93 lines
3.0 KiB
Plaintext
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// abstract feature iterator implementations are not part of public API
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class QgsVectorLayerFeatureSource : QgsAbstractFeatureSource
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{
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%TypeHeaderCode
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#include <qgsvectorlayerfeatureiterator.h>
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%End
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public:
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/** Constructor for QgsVectorLayerFeatureSource.
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* \param layer source layer
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*/
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explicit QgsVectorLayerFeatureSource( const QgsVectorLayer *layer );
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~QgsVectorLayerFeatureSource();
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virtual QgsFeatureIterator getFeatures( const QgsFeatureRequest &request = QgsFeatureRequest() );
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};
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class QgsVectorLayerFeatureIterator : QgsAbstractFeatureIterator
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{
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%TypeHeaderCode
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#include <qgsvectorlayerfeatureiterator.h>
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%End
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public:
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~QgsVectorLayerFeatureIterator();
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//! reset the iterator to the starting position
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virtual bool rewind();
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//! end of iterating: free the resources / lock
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virtual bool close();
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protected:
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//! fetch next feature, return true on success
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virtual bool fetchFeature( QgsFeature& feature );
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//! Overrides default method as we only need to filter features in the edit buffer
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//! while for others filtering is left to the provider implementation.
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virtual bool nextFeatureFilterExpression( QgsFeature &f );
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//! Setup the simplification of geometries to fetch using the specified simplify method
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virtual bool prepareSimplification( const QgsSimplifyMethod& simplifyMethod );
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//! @note not available in Python bindings
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//void rewindEditBuffer();
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//! @note not available in Python bindings
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//void prepareJoins();
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//! @note not available in Python bindings
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//void prepareExpressions();
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//! @note not available in Python bindings
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//bool fetchNextAddedFeature( QgsFeature& f );
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//! @note not available in Python bindings
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//bool fetchNextChangedGeomFeature( QgsFeature& f );
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//! @note not available in Python bindings
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//bool fetchNextChangedAttributeFeature( QgsFeature& f );
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//! @note not available in Python bindings
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//void useAddedFeature( const QgsFeature& src, QgsFeature& f );
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//! @note not available in Python bindings
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//void useChangedAttributeFeature( QgsFeatureId fid, const QgsGeometry& geom, QgsFeature& f );
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//! @note not available in Python bindings
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//bool nextFeatureFid( QgsFeature& f );
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//! @note not available in Python bindings
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//void addJoinedAttributes( QgsFeature &f );
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/**
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* Adds attributes that don't source from the provider but are added inside QGIS
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* Includes
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* - Joined fields
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* - Expression fields
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*
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* @param f The feature will be modified
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* @note not available in Python bindings
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*/
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//void addVirtualAttributes( QgsFeature &f );
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/** Update feature with uncommitted attribute updates.
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* @note not available in Python bindings
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*/
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//void updateChangedAttributes( QgsFeature& f );
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/** Update feature with uncommitted geometry updates.
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* @note not available in Python bindings
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*/
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//void updateFeatureGeometry( QgsFeature& f );
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private:
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QgsVectorLayerFeatureIterator( const QgsVectorLayerFeatureIterator &rhs );
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};
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