qgsalgorithmdetectdatasetchanges.h

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/***************************************************************************
                         qgsalgorithmdetectdatasetchanges.h
                         ---------------------------------------
    begin                : December 2019
    copyright            : (C) 2019 by Nyall Dawson
    email                : nyall dot dawson at gmail dot com
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   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 QGSALGORITHMDETECTDATASETCHANGES_H
#define QGSALGORITHMDETECTDATASETCHANGES_H
 
#define SIP_NO_FILE
 
#include "qgis_sip.h"
#include "qgsprocessingalgorithm.h"
#include "qgsapplication.h"
#include "qgsvectorlayerfeatureiterator.h"
 
 
class QgsDetectVectorChangesAlgorithm : public QgsProcessingAlgorithm
{
 
  public:
 
    QgsDetectVectorChangesAlgorithm() = default;
    void initAlgorithm( const QVariantMap &configuration = QVariantMap() ) override;
    QString name() const override;
    QString displayName() const override;
    QStringList tags() const override;
    QString group() const override;
    QString groupId() const override;
    QString shortHelpString() const override;
    QString shortDescription() const override;
    QgsDetectVectorChangesAlgorithm *createInstance() const override SIP_FACTORY;
 
  protected:
 
    bool prepareAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
    QVariantMap processAlgorithm( const QVariantMap &parameters,
                                  QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
 
  private:
 
    enum GeometryMatchType
    {
      Exact,
      Topological
    };
 
    std::unique_ptr< QgsProcessingFeatureSource > mOriginal;
    std::unique_ptr< QgsProcessingFeatureSource > mRevised;
    QStringList mFieldsToCompare;
    QList< int > mOriginalFieldsToCompareIndices;
    QList< int > mRevisedFieldsToCompareIndices;
 
    GeometryMatchType mMatchType = Topological;
 
 
};
 
 
#endif // QGSALGORITHMDETECTDATASETCHANGES_H