QGIS API Documentation 3.41.0-Master (3440c17df1d)
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qgsgenericfeatureselectionmanager.cpp
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1/***************************************************************************
2 qgsgenericfeatureselectionmanager.cpp
3 --------------------------------------
4 Date : 11.6.2013
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
17#include "moc_qgsgenericfeatureselectionmanager.cpp"
18
23
26 , mSelectedFeatures( initialSelection )
27{
28}
29
31{
32 return mSelectedFeatures.size();
33}
34
36{
37 mSelectedFeatures += ids;
38 emit selectionChanged( ids, QgsFeatureIds(), false );
39}
40
42{
43 mSelectedFeatures -= ids;
44 emit selectionChanged( QgsFeatureIds(), ids, false );
45}
46
48{
49 const QgsFeatureIds selected = mSelectedFeatures - ids;
50 const QgsFeatureIds deselected = ids - mSelectedFeatures;
51
52 mSelectedFeatures = ids;
53 emit selectionChanged( selected, deselected, true );
54}
55
57{
58 return mSelectedFeatures;
59}
void select(const QgsFeatureIds &ids) override
Select features by feature ids.
int selectedFeatureCount() override
Returns the number of features that are selected in this layer.
void deselect(const QgsFeatureIds &ids) override
Deselect features by feature ids.
const QgsFeatureIds & selectedFeatureIds() const override
Returns reference to identifiers of selected features.
void setSelectedFeatures(const QgsFeatureIds &ids) override
Change selection to the new set of features.
Is an interface class to abstract feature selection handling.
void selectionChanged(const QgsFeatureIds &selected, const QgsFeatureIds &deselected, bool clearAndSelect)
Emitted when selection was changed.
QSet< QgsFeatureId > QgsFeatureIds