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			75 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			75 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
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// abstract feature iterator implementations are not part of public API
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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 uncommited 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 uncommited 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();
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};
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