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3f4d6de54b
The layer expression context (which is required for aggregate calculation to work) was not being added to the context used by vector layer feature iterators. Fix #15930
194 lines
5.1 KiB
Plaintext
194 lines
5.1 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsvectorlayerfeatureiterator.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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%ModuleHeaderCode
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#include "qgsfeatureiterator.h"
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%End
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class QgsVectorLayerFeatureSource : QgsAbstractFeatureSource
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{
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%Docstring
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Partial snapshot of vector layer's state (only the members necessary for access to features)
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%End
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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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explicit QgsVectorLayerFeatureSource( const QgsVectorLayer *layer );
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%Docstring
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Constructor for QgsVectorLayerFeatureSource.
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\param layer source layer
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%End
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~QgsVectorLayerFeatureSource();
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virtual QgsFeatureIterator getFeatures( const QgsFeatureRequest &request = QgsFeatureRequest() );
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QgsFields fields() const;
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%Docstring
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Returns the fields that will be available for features that are retrieved from
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this source.
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.. versionadded:: 3.0
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:rtype: QgsFields
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%End
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QgsCoordinateReferenceSystem crs() const;
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%Docstring
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Returns the coordinate reference system for features retrieved from this source.
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.. versionadded:: 3.0
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:rtype: QgsCoordinateReferenceSystem
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%End
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protected:
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};
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typedef QgsAbstractFeatureIteratorFromSource<QgsVectorLayerFeatureSource> QgsAbstractFeatureIteratorFromSourceQgsVectorLayerFeatureSourceBase;
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class QgsVectorLayerFeatureIterator : QgsAbstractFeatureIteratorFromSourceQgsVectorLayerFeatureSourceBase
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{
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%TypeHeaderCode
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#include "qgsvectorlayerfeatureiterator.h"
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#include "qgsfeatureiterator.h"
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typedef QgsAbstractFeatureIteratorFromSource<QgsVectorLayerFeatureSource> QgsAbstractFeatureIteratorFromSourceQgsVectorLayerFeatureSourceBase;
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%End
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public:
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QgsVectorLayerFeatureIterator( QgsVectorLayerFeatureSource *source, bool ownSource, const QgsFeatureRequest &request );
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~QgsVectorLayerFeatureIterator();
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virtual bool rewind();
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%Docstring
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reset the iterator to the starting position
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:rtype: bool
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%End
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virtual bool close();
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%Docstring
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end of iterating: free the resources / lock
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:rtype: bool
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%End
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struct FetchJoinInfo
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{
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const QgsVectorLayerJoinInfo *joinInfo;//!< Canonical source of information about the join
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QgsAttributeList attributes; //!< Attributes to fetch
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int indexOffset; //!< At what position the joined fields start
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QgsVectorLayer *joinLayer; //!< Resolved pointer to the joined layer
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int targetField; //!< Index of field (of this layer) that drives the join
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int joinField; //!< Index of field (of the joined layer) must have equal value
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void addJoinedAttributesCached( QgsFeature &f, const QVariant &joinValue ) const;
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void addJoinedAttributesDirect( QgsFeature &f, const QVariant &joinValue ) const;
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};
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protected:
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virtual bool fetchFeature( QgsFeature &feature );
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%Docstring
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fetch next feature, return true on success
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:rtype: bool
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%End
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virtual bool nextFeatureFilterExpression( QgsFeature &f );
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%Docstring
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while for others filtering is left to the provider implementation.
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:rtype: bool
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%End
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virtual bool prepareSimplification( const QgsSimplifyMethod &simplifyMethod );
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%Docstring
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Setup the simplification of geometries to fetch using the specified simplify method
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:rtype: bool
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%End
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private:
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QgsVectorLayerFeatureIterator( const QgsVectorLayerFeatureIterator &rhs );
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};
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class QgsVectorLayerSelectedFeatureSource : QgsFeatureSource
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{
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%Docstring
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QgsFeatureSource subclass for the selected features from a QgsVectorLayer.
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.. versionadded:: 3.0
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%End
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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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QgsVectorLayerSelectedFeatureSource( QgsVectorLayer *layer );
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%Docstring
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Constructor for QgsVectorLayerSelectedFeatureSource, for selected features from the specified ``layer``.
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The currently selected feature IDs are stored, so change to the layer selection after constructing
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the QgsVectorLayerSelectedFeatureSource will not be reflected.
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%End
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virtual QgsFeatureIterator getFeatures( const QgsFeatureRequest &request = QgsFeatureRequest() ) const;
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virtual QgsCoordinateReferenceSystem sourceCrs() const;
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virtual QgsFields fields() const;
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virtual QgsWkbTypes::Type wkbType() const;
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virtual long featureCount() const;
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virtual QString sourceName() const;
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};
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/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsvectorlayerfeatureiterator.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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