omgclimatefilereader.h

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/***************************************************************************
 *   Copyright (C) 2005 by Tim Sutton   *
 *   tim@linfiniti.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.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifndef _OMGCLIMATEFILEREADER_H_
#define _OMGCLIMATEFILEREADER_H_

#include <QFile>
#include <QString>
#include <QVector>
#include <QMap>
#include <QTextStream>
#include <fstream>
#include <iostream>
//other includes
#include <gdal_priv.h>

class OMG_LIB_EXPORT OmgClimateFileReader : public QObject
{
  Q_OBJECT;

public:

  //
  // Enumerators
  //
  enum FileType { GDAL,
    HADLEY_SRES,
    HADLEY_IS92,
    HADLEY_SRES_MEAN,
    IPCC_OBSERVED,
    VALDES,
    ECHAM4,
    CSIRO_MK2,
    NCAR_CSM_PCM,
    GFDL_R30,
    CGCM2,
    CCSR_AGCM_OGCM,
    CRU_CL1_MONTHLY };


  //
  //   Public methods
  //

  OmgClimateFileReader();

  OmgClimateFileReader(QString theFileName,FileType theFileType);

  ~OmgClimateFileReader();

  bool initialise(QString theFileNameString, FileType theFileType);

  float getElement();

  const long currentElementNo();

  const long currentRow();

  const long currentCol();


  const int headerLineCount();

  bool setActiveBlock( const unsigned int theBlockNo);

  const int activeBlock();


  const bool isAtMatrixEnd();


  const QString  filename();



  const OmgClimateFileReader::FileType getFileType();

  const long yDim();
  const long xDim();
  const int blockHeaderLineCount();
  QString getOmgClimateFileReaderInfo();
  const int blockStartPos();
  bool moveToHeader();
  const int blockCount();
  int getNumberOfBlocks();
  void printFirstCellInEachBlock();
  void printLastCellInEachBlock();
  void printBlockMarkers();
  void printBlock(int theBlock);
signals:
  void error (QString theError);
  void message (QString theMessage);

private:

  bool setFileType( const FileType theNewVal);
  QVector <int> getBlockMarkers(bool forceFlag=false);

  double readValue ( void *theData, GDALDataType theType, int theIndex );

  //
  //   Private attributes
  //
  static const unsigned int mMaxLineLength=100;
  unsigned int mXDim;
  unsigned int mYDim;
  FileType mFileType;
  QString mFileName;
  bool mEndOfMatrixFlag;
  int mActiveBlockNo;
  int mFileHeaderLines;
  unsigned int mCurrentColumn;
  unsigned int mCurrentRow;
  unsigned int mCurrentElementNo;
  std::ifstream  mTextStream;
  char mBuffer[mMaxLineLength];
  GDALDataset *  mGdalDataset;

  int mBlockHeaderLines;
  int mBlockStartPos;
  QVector <int> mBlockMarkersVector;


};

#endif

---