qgsalgorithmbasicstatistics.h

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/***************************************************************************
                         qgsalgorithmbasicstatistics.h
                         ------------------------------
    begin                : June 2024
    copyright            : (C) 2024 by Alexander Bruy
    email                : alexander dot bruy 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 QGSALGORITHMBASICSTATISTICS_H
#define QGSALGORITHMBASICSTATISTICS_H
 
#define SIP_NO_FILE
 
#include "qgis_sip.h"
#include "qgsprocessingalgorithm.h"
#include "qgsapplication.h"
 
 
class QgsBasicStatisticsAlgorithm : public QgsProcessingAlgorithm
{
 
  public:
 
    QgsBasicStatisticsAlgorithm() = default;
    QIcon icon() const override { return QgsApplication::getThemeIcon( QStringLiteral( "/algorithms/mAlgorithmBasicStatistics.svg" ) ); }
    QString svgIconPath() const override { return QgsApplication::iconPath( QStringLiteral( "/algorithms/mAlgorithmBasicStatistics.svg" ) ); }
    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;
    QgsBasicStatisticsAlgorithm *createInstance() const override SIP_FACTORY;
 
  protected:
 
    QVariantMap processAlgorithm( const QVariantMap &parameters,
                                  QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
 
  private:
 
    QVariantMap calculateNumericStatistics( const int fieldIndex, QgsFeatureIterator features, const long long count, QgsFeatureSink *sink, QStringList &data, QgsProcessingFeedback *feedback );
    QVariantMap calculateDateTimeStatistics( const int fieldIndex, QgsField field, QgsFeatureIterator features, const long long count, QgsFeatureSink *sink, QStringList &data, QgsProcessingFeedback *feedback );
    QVariantMap calculateStringStatistics( const int fieldIndex, QgsFeatureIterator features, const long long count, QgsFeatureSink *sink, QStringList &data, QgsProcessingFeedback *feedback );
};
 
 
#endif // QGSALGORITHMBASICSTATISTICS_H