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78 lines
2.8 KiB
Plaintext
78 lines
2.8 KiB
Plaintext
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/***************************************************************************
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qgsifeatureselectionmanager.sip
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--------------------------------------
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Date : 6.6.2013
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Copyright : (C) 2013 Matthias Kuhn
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Email : matthias dot kuhn at gmx dot ch
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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/**
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* Is an interface class to abstract feature selection handling.
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*
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* e.g. @link{QgsVectorLayer} implements this interface to manage its selections.
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*/
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class QgsIFeatureSelectionManager : QObject
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{
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%TypeHeaderCode
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#include <qgsifeatureselectionmanager.h>
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%End
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public:
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QgsIFeatureSelectionManager( QObject* parent );
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/**
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* The number of features that are selected in this layer
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*
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* @return See description
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*/
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virtual int selectedFeatureCount() = 0;
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/**
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* Select features
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*
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* @param ids Feature ids to select
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*/
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virtual void select( const QgsFeatureIds& ids ) = 0;
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/**
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* Deselect features
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*
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* @param ids Feature ids to deselect
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*/
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virtual void deselect( const QgsFeatureIds& ids ) = 0;
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/**
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* Change selection to the new set of features. Dismisses the current selection.
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* Will emit the { @link selectionChanged( QgsFeatureIds, QgsFeatureIds, bool ) } signal with the
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* clearAndSelect flag set.
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*
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* @param ids The ids which will be the new selection
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*/
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virtual void setSelectedFeatures( const QgsFeatureIds& ids ) = 0;
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/**
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* Return reference to identifiers of selected features
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*
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* @return A list of { @link QgsFeatureId } 's
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* @see selectedFeatures()
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*/
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virtual const QgsFeatureIds &selectedFeaturesIds() const = 0;
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signals:
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/**
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* This signal is emitted when selection was changed
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*
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* @param selected Newly selected feature ids
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* @param deselected Ids of all features which have previously been selected but are not any more
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* @param clearAndSelect In case this is set to true, the old selection was dismissed and the new selection corresponds to selected
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*/
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void selectionChanged( const QgsFeatureIds selected, const QgsFeatureIds deselected, const bool clearAndSelect );
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};
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