qgsmeshcalculator.h

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/***************************************************************************
                          qgsmeshcalculator.h
                          -------------------
    begin                : December 18th, 2018
    copyright            : (C) 2018 by Peter Petrik
    email                : zilolv 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 QGSMESHCALCULATOR_H
#define QGSMESHCALCULATOR_H

#include <QString>
#include <QVector>

#include "qgis_analysis.h"
#include "qgsrectangle.h"
#include "qgsmeshlayer.h"
#include "qgsmeshdataprovider.h"
#include "qgsfeedback.h"

struct QgsMeshMemoryDatasetGroup;
struct QgsMeshMemoryDataset;

class ANALYSIS_EXPORT QgsMeshCalculator
{
  public:

    enum Result
    {
      Success = 0, 
      Canceled, 
      CreateOutputError, 
      InputLayerError, 
      ParserError, 
      InvalidDatasets, 
      EvaluateError, 
      MemoryError, 
    };

    QgsMeshCalculator( const QString &formulaString,
                       const QString &outputFile,
                       const QgsRectangle &outputExtent,
                       double startTime,
                       double endTime,
                       QgsMeshLayer *layer );

    QgsMeshCalculator( const QString &formulaString,
                       const QString &outputFile,
                       const QgsGeometry &outputMask,
                       double startTime,
                       double endTime,
                       QgsMeshLayer *layer );

    Result processCalculation( QgsFeedback *feedback = nullptr );

    static Result expression_valid( const QString &formulaString, QgsMeshLayer *layer );

  private:
    QgsMeshCalculator();

    QString mFormulaString;
    QString mOutputFile;
    QgsRectangle mOutputExtent;
    QgsGeometry mOutputMask;
    bool mUseMask = false;
    double mStartTime = 0.0;
    double mEndTime = 0.0;
    QgsMeshLayer *mMeshLayer = nullptr;
};

#endif // QGSMESHCALCULATOR_H