//----------------------------------------------------------------------------
//  EgalTech 2014-2014
//----------------------------------------------------------------------------
// File : NgeReader.h          Data : 14.04.14           Versione : 1.5d5
// Contenuto : Dichiarazione della classe NgeReader.
//
//
//
// Modifiche : 14.04.14 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

#pragma once

#include "NgeConst.h"
#include "/EgtDev/Include/EGkPoint3d.h"
#include "/EgtDev/Include/EGkColor.h"
#include "/EgtDev/Include/EGnScanner.h"
#include "/EgtDev/Include/EgtStringBase.h"
#include <fstream>

//----------------------------------------------------------------------------
class NgeReader
{
   public :
      NgeReader( void)
            : m_iPosStart( std::string::npos), m_bUngetKey( false), m_nFileVer() {}
      ~NgeReader( void)
            { Close() ; }
      bool Init( const std::string& sFileIn) ;
      bool Close( void) ;
      int  GetCurrPos( void) ;
      bool ReadUchar( unsigned char& ucVal, const char* szSep, bool bEndL = false) ;
      bool ReadBool( bool& bVal, const char* szSep, bool bEndL = false) ;
      bool ReadInt( int& nVal, const char* szSep, bool bEndL = false) ;
      bool ReadInt( unsigned int& nVal, const char* szSep, bool bEndL = false) ;
      bool ReadDouble( double& dVal, const char* szSep, bool bEndL = false) ;
      bool ReadVector( Vector3d& vtV, const char* szSep, bool bEndL = false) ;
      bool ReadPoint( Point3d& ptP, const char* szSep, bool bEndL = false) ;
      bool ReadPointW( Point3d& ptP, double& dW, const char* szSep, bool bEndL = false) ;
      bool ReadFrame( Frame3d& frF, const char* szSep, bool bEndL = false) ;
      bool ReadCol( Color& cCol, const char* szSep, bool bEndL = false) ;
      bool ReadString( std::string& sVal, const char* szSep, bool bEndL = false) ;
      bool ReadKey( int& nKey /* bEndL = true*/) ;
      void UngetKey( void)
             { m_bUngetKey = true ; }
      bool SetFileVersion( int nFileVer)
             { m_nFileVer = nFileVer ; return true ; }
      int  GetFileVersion( void)
             { return m_nFileVer ; }

   private :
      enum { NGE_ERROR = 0, NGE_ASCII = 1, NGE_BINARY = 2 } ;

   private :
      int  NgeType( const std::string& sFile) ;
      bool GetToken( std::string& sToken, const char* szSep, bool bEndL) ;

   private :
      bool                   m_bBinary ;
      // per file binari
      std::ifstream          m_InFile ;
      // per file ASCII
      Scanner                m_Scan ;
      std::string::size_type m_iPosStart ;
      std::string            m_sLine ;
      std::string            m_sToken ;
      // unget Key
      bool                   m_bUngetKey ;
      int                    m_nLastKey ;
      // file version
      int                    m_nFileVer ;
} ;