qgsfeaturepickermodel.h

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/***************************************************************************
  qgsfeaturepickermodel.h - QgsFeaturePickerModel
 ---------------------
 begin                : 03.04.2020
 copyright            : (C) 2020 by Denis Rouzaud
 email                : [email protected]
 ***************************************************************************
 *                                                                         *
 *   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 QGSFEATUREPICKERMODEL_H
#define QGSFEATUREPICKERMODEL_H
 
#include <QAbstractItemModel>
 
#include "qgsconditionalstyle.h"
#include "qgsfeatureexpressionvaluesgatherer.h"
#include "qgsfeaturepickermodelbase.h"
 
class CORE_EXPORT QgsFeaturePickerModel : public QgsFeaturePickerModelBase
{
    Q_OBJECT
 
  public:
 
    explicit QgsFeaturePickerModel( QObject *parent = nullptr );
 
    void setExtraIdentifierValueToNull() override;
 
    void setFeature( const QgsFeatureId &fid );
 
    QgsFeature feature() const;
 
  signals:
    void featureChanged( const QgsFeature &feature );
 
 
  private:
    QgsFeatureExpressionValuesGatherer *createValuesGatherer( const QgsFeatureRequest &request ) const override;
 
    void requestToReloadCurrentFeature( QgsFeatureRequest &request ) override;
 
    QVariant entryIdentifier( const QgsFeatureExpressionValuesGatherer::Entry &entry ) const override;
 
    QgsFeatureExpressionValuesGatherer::Entry createEntry( const QVariant &identifier ) const override;
 
    bool compareEntries( const QgsFeatureExpressionValuesGatherer::Entry &a, const QgsFeatureExpressionValuesGatherer::Entry &b ) const override;
 
    bool identifierIsNull( const QVariant &identifier ) const override;
 
    QVariant nullIentifier() const override;
};
 
#endif // QGSFEATUREPICKERMODEL_H