CChartGDAL.hpp

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// INDENTING (emacs/vi): -*- mode:c++; tab-width:2; c-basic-offset:2; intent-tabs-mode:nil; -*- ex: set tabstop=2 expandtab:
 
/*
 * Qt Virtual Chart Table (QVCT)
 * Copyright (C) 2012 Cedric Dufour <http://cedric.dufour.name>
 * Author: Cedric Dufour <http://cedric.dufour.name>
 *
 * The Qt Virtual Chart Table (QVCT) 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, Version 3.
 *
 * The Qt Virtual Chart Table (QVCT) 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.
 */
 
#ifndef QVCT_CCHARTGDAL_HPP
#define QVCT_CCHARTGDAL_HPP
 
// QT
#include <QColor>
#include <QPainter>
#include <QPixmap>
#include <QRect>
#include <QString>
#include <QVector>
 
// GDAL
#include <gdal_priv.h>
 
// QVCT
#include "QVCT.hpp"
class CDataPosition;
 
 
 
class CChartGDAL
{
 
  //------------------------------------------------------------------------------
  // CONSTANTS
  //------------------------------------------------------------------------------
 
public:
  enum EColorEncoding { GRAY, GRAY_U16, GRAY_S16, GRAY_U32, GRAY_S32, GRAY_F32, GRAY_F64,
                        PALETTE_GRAY, PALETTE_RGB, PALETTE_CMYK, PALETTE_HSL, ARGB, RGB, YUV };
 
 
  //------------------------------------------------------------------------------
  // FIELDS
  //------------------------------------------------------------------------------
 
protected:
  //
  // THIS
  //
 
  QVCT::EStatus eStatus;
  QString qsFileName;
  QRect qRectGeometry;
  EColorEncoding eColorEncoding;
  QPointF qPointFDatPositionWished;
  QPointF qPointFDatPositionActual;
  double fdZoomWished;
  double fdZoomActual;
 
  //
  // GDAL
  //
 
  GDALDataset* poGDALDataset;
  void* pGDALProjectionTransformer;
  int* piGDALBandMap;
 
  //
  // Qt
  //
 
  QPixmap qPixmapBuffer;
  QVector<QRgb> qColorTable;
 
 
  //------------------------------------------------------------------------------
  // CONSTRUCTORS / DESTRUCTOR
  //------------------------------------------------------------------------------
 
protected:
  CChartGDAL();
  virtual ~CChartGDAL();
 
protected:
  void open( const QString& _rqsFileName );
 
 
  //------------------------------------------------------------------------------
  // METHODS
  //------------------------------------------------------------------------------
 
  // GETTERS
public:
  QVCT::EStatus getStatus() const { return eStatus; };
  QString getFileName() const { return qsFileName; };
  QRect getDatGeometry() const { return qRectGeometry; };
  EColorEncoding getColorEncoding() const { return eColorEncoding; };
  QPointF getDatPosition() const { return qPointFDatPositionActual; };
  double getZoom() const { return fdZoomActual; };
 
  // OTHER
public:
  CDataPosition toGeoPosition( const QPointF& _rqPointFDatPosition ) const;
  QPointF toDatPosition( const CDataPosition& _roGeoPosition ) const;
  double getResolution( const QPointF& _rqPointFDatPosition ) const;
  void draw( QPainter* _pqPainter, const QPointF& _rqPointFDatPosition, double _fdZoom );
  void move( const QPointF& _rqPointFDatPosition, double _fdZoom );
 
protected:
  virtual void rasterBuffer( QImage* _pqImage, const QVector<quint16>& _rqVector ) const;
  virtual void rasterBuffer( QImage* _pqImage, const QVector<qint16>& _rqVector ) const;
  virtual void rasterBuffer( QImage* _pqImage, const QVector<quint32>& _rqVector ) const;
  virtual void rasterBuffer( QImage* _pqImage, const QVector<qint32>& _rqVector ) const;
  virtual void rasterBuffer( QImage* _pqImage, const QVector<float>& _rqVector ) const;
  virtual void rasterBuffer( QImage* _pqImage, const QVector<double>& _rqVector ) const;
 
};
 
#endif // QVCT_CCHARTGDAL_HPP