src/analysis/raster/qgsninecellfilter.h

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/***************************************************************************
                          qgsninecellfilter.h  -  description
                             -------------------
    begin                : August 6th, 2009
    copyright            : (C) 2009 by Marco Hugentobler
    email                : marco dot hugentobler at karto dot baug dot ethz 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 QGSNINECELLFILTER_H
#define QGSNINECELLFILTER_H

#include <QString>
#include "gdal.h"

class QProgressDialog;

class ANALYSIS_EXPORT QgsNineCellFilter
{
  public:
    QgsNineCellFilter( const QString& inputFile, const QString& outputFile, const QString& outputFormat );
    virtual ~QgsNineCellFilter();
    int processRaster( QProgressDialog* p );

  private:
    //default constructor forbidden. We need input file, output file and format obligatory
    QgsNineCellFilter();

    GDALDatasetH openInputFile( int& nCellsX, int& nCellsY );
    GDALDriverH openOutputDriver();
    GDALDatasetH openOutputFile( GDALDatasetH inputDataset, GDALDriverH outputDriver );

  protected:
    virtual float processNineCellWindow( float* x11, float* x21, float* x31, \
                                         float* x12, float* x22, float* x32, float* x13, float* x23, float* x33 ) = 0;

    QString mInputFile;
    QString mOutputFile;
    QString mOutputFormat;

    double mCellSizeX;
    double mCellSizeY;
    float mInputNodataValue;
    float mOutputNodataValue;
};

#endif // QGSNINECELLFILTER_H