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* With a selection model, the way the attribute table handles selections can be customized. E.g. synchronized to layer selection or used to pick features. * With request filters, the visible features on an attribute table can be limited. This will effectively reduce the subset of features the attribute table works on. Additional filters by means of a proxy model can of course further reduce the visible subset subsequently.
76 lines
2.6 KiB
Plaintext
76 lines
2.6 KiB
Plaintext
class QgsFeatureSelectionModel : QItemSelectionModel
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{
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%TypeHeaderCode
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#include <attributetable/qgsfeatureselectionmodel.h>
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%End
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public:
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explicit QgsFeatureSelectionModel( QAbstractItemModel* model, QgsFeatureModel* featureModel, QgsIFeatureSelectionManager* featureSelectionManager, QObject* parent );
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/**
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* Enables or disables synchronisation to the {@link QgsVectorLayer}
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* When synchronisation is disabled, any selection change will be buffered inside this selection model.
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* When enabled, any buffered changes are communicated to the layer and the buffer is emptied.
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* Mainly to be used for performance reasons, because selection change on the layer can cost time as it
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* repaints the layer.
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*
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* @param enable The synchronisation status to set.
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*/
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void enableSync( bool enable );
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/**
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* Returns the selection status of a given feature id.
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*
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* @param fid The featureid to determine the selection status of
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*
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* @return The selection status
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*/
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virtual bool isSelected( QgsFeatureId fid );
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/**
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* Returns the selection status of a given QModelIndex.
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*
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* @param index The index to determine the selection status of
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*
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* @return The selection status
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*/
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virtual bool isSelected( const QModelIndex& index );
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signals:
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/**
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* Request a repaint of a list of model indexes.
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* Views using this model should connect to and properly process this signal.
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*
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* @param indexes The model indexes which need to be repainted
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*/
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void requestRepaint( QModelIndexList indexes );
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/**
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* Request a repaint of the visible items of connected views.
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* Views using this model should connect to and properly process this signal.
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*/
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void requestRepaint();
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public slots:
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/**
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* Overwritten to do NOTHING (we handle selection ourselves)
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*
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* @see selectFeatures( const QItemSelection&, SelectionFlags )
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*/
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virtual void select( const QModelIndex &index, SelectionFlags command );
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/**
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* Overwritten to do NOTHING (we handle selection ourselves)
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*
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* @see selectFeatures( const QItemSelection&, SelectionFlags )
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*/
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virtual void select( const QItemSelection &selection, SelectionFlags command );
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/**
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* Select features on this table. Is to be used in favor of the stock select methods.
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*
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* @param selection The QItemSelection which will be selected
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* @param command The command to apply. Select, Deselect and ClearAndSelect are processed.
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*/
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virtual void selectFeatures( const QItemSelection &selection, SelectionFlags command );
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};
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