qgsfeatureselectionmodel.h

Go to the documentation of this file.

/***************************************************************************
    qgsfeatureselectionmodel.h
    ---------------------
    begin                : April 2013
    copyright            : (C) 2013 by Matthias Kuhn
    email                : matthias at opengis dot ch
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
#ifndef QGSFEATURESELECTIONMODEL_H
#define QGSFEATURESELECTIONMODEL_H
 
#include "qgis_gui.h"
#include "qgsfeatureid.h"
 
#include <QItemSelectionModel>
 
class QgsVectorLayer;
class QgsFeatureModel;
class QgsIFeatureSelectionManager;

class GUI_EXPORT QgsFeatureSelectionModel : public QItemSelectionModel
{
    Q_OBJECT
  public:
    explicit QgsFeatureSelectionModel( QAbstractItemModel *model, QgsFeatureModel *featureModel, QgsIFeatureSelectionManager *featureSelectionHandler, QObject *parent SIP_TRANSFERTHIS );

    void enableSync( bool enable );

 
    virtual bool isSelected( QgsFeatureId fid );

    virtual bool isSelected( const QModelIndex &index );
 
  signals:

    void requestRepaint( const QModelIndexList &indexes );

    void requestRepaint();
 
  public slots:

    void select( const QModelIndex &index, QItemSelectionModel::SelectionFlags command ) override
    {
      Q_UNUSED( index )
      Q_UNUSED( command );
    }

    void select( const QItemSelection &selection, QItemSelectionModel::SelectionFlags command ) override
    {
      Q_UNUSED( selection )
      Q_UNUSED( command );
    }

    virtual void selectFeatures( const QItemSelection &selection, QItemSelectionModel::SelectionFlags command );
 
    virtual void setFeatureSelectionManager( QgsIFeatureSelectionManager *featureSelectionManager SIP_TRANSFER );
 
  private slots:
    virtual void layerSelectionChanged( const QgsFeatureIds &selected, const QgsFeatureIds &deselected, bool clearAndSelect );
 
  private:
    QModelIndexList expandIndexToRow( const QModelIndex &index ) const;
 
  private:
    QgsFeatureModel *mFeatureModel = nullptr;
    QgsIFeatureSelectionManager *mFeatureSelectionManager = nullptr;
    bool mSyncEnabled = true;

    QgsFeatureIds mSelectedBuffer;

    QgsFeatureIds mDeselectedBuffer;

    bool mClearAndSelectBuffer = false;
};
 
#endif // QGSFEATURESELECTIONMODEL_H