qgsfeatureselectionmodel.h

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/***************************************************************************
    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 <QItemSelectionModel>

#include "qgsfeature.h"

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 );

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

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

    virtual void selectFeatures( const QItemSelection &selection, const SelectionFlags& command );

    virtual void setFeatureSelectionManager( QgsIFeatureSelectionManager* featureSelectionManager );

  private slots:
    virtual void layerSelectionChanged( const QgsFeatureIds& selected, const QgsFeatureIds& deselected, bool clearAndSelect );

  private:
    QModelIndexList expandIndexToRow( const QModelIndex& index ) const;

  private:
    QgsFeatureModel* mFeatureModel;
    QgsIFeatureSelectionManager* mFeatureSelectionManager;
    bool mSyncEnabled;

    QgsFeatureIds mSelectedBuffer;

    QgsFeatureIds mDeselectedBuffer;

    bool mClearAndSelectBuffer;
};

#endif // QGSFEATURESELECTIONMODEL_H