QGIS API Documentation  3.18.1-Zürich (202f1bf7e5)
qgsifeatureselectionmanager.h
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1 /***************************************************************************
2  qgsifeatureselectionmanager.h
3  --------------------------------------
4  Date : 6.6.2013
5  Copyright : (C) 2013 Matthias Kuhn
6  Email : matthias at opengis dot ch
7  ***************************************************************************
8  * *
9  * This program is free software; you can redistribute it and/or modify *
10  * it under the terms of the GNU General Public License as published by *
11  * the Free Software Foundation; either version 2 of the License, or *
12  * (at your option) any later version. *
13  * *
14  ***************************************************************************/
15 
16 #ifndef QGSIFEATURESELECTIONMANAGER_H
17 #define QGSIFEATURESELECTIONMANAGER_H
18 
19 #include <QObject>
20 #include "qgis_sip.h"
21 #include "qgis_gui.h"
22 #include "qgsfeatureid.h"
23 
31 class GUI_EXPORT QgsIFeatureSelectionManager : public QObject
32 {
33  Q_OBJECT
34 
35  public:
37  : QObject( parent ) {}
38 
42  virtual int selectedFeatureCount() = 0;
43 
47  virtual void select( const QgsFeatureIds &ids ) = 0;
48 
52  virtual void deselect( const QgsFeatureIds &ids ) = 0;
53 
62  virtual void setSelectedFeatures( const QgsFeatureIds &ids ) = 0;
63 
70  virtual const QgsFeatureIds &selectedFeatureIds() const = 0;
71 
72  signals:
73 
81  void selectionChanged( const QgsFeatureIds &selected, const QgsFeatureIds &deselected, bool clearAndSelect );
82 };
83 
84 #endif // QGSIFEATURESELECTIONMANAGER_H
Is an interface class to abstract feature selection handling.
virtual void select(const QgsFeatureIds &ids)=0
Select features by feature ids.
void selectionChanged(const QgsFeatureIds &selected, const QgsFeatureIds &deselected, bool clearAndSelect)
Emitted when selection was changed.
virtual int selectedFeatureCount()=0
Returns the number of features that are selected in this layer.
virtual const QgsFeatureIds & selectedFeatureIds() const =0
Returns reference to identifiers of selected features.
virtual void deselect(const QgsFeatureIds &ids)=0
Deselect features by feature ids.
virtual void setSelectedFeatures(const QgsFeatureIds &ids)=0
Change selection to the new set of features.
#define SIP_TRANSFERTHIS
Definition: qgis_sip.h:53
QSet< QgsFeatureId > QgsFeatureIds
Definition: qgsfeatureid.h:37