//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, SH Software Co. Ltd.
// = FileName	:   XStreamFile 类
// = Version	:   ver2.0
// = Author		:   zjq
// = CreateDate	:   2002-09-09
// = Description:   XStreamFile 声明
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#ifndef _XStreamFile_H_
#define _XStreamFile_H_

#include <stdio.h>
#include <io.h>

#if (ARX > 15)
#include <istream>
#else
#include <iostream.h>
#endif

class GEOAPI XStreamFile
{
public:
	XStreamFile();
	virtual ~XStreamFile();

	int Pack(const TCHAR *dwgFile, const TCHAR *lzwFile);
	int UnPack(const TCHAR *lzwFile, const TCHAR *dwgFile);

#if (ARX > 15)
	void StreamCopy(std::istream & _libfile, std::ostream &sld_out, long sld_fsize);
#else
	void StreamCopy(istream & _libfile, ostream &sld_out, long sld_fsize);
#endif

private:
	void initvalue(void);

	int Read(INT_PTR h,void *buf,INT_PTR num,bool bProtect = false);
	int Write(INT_PTR h,void *buf,INT_PTR num,bool bProtect = false);
	
	void writebit(short,short,short, unsigned char *,int);
	int readbit(short,short, unsigned char *,int);
	int pack(short size,int h1,int h2); 
	int unpack(short size,int h1,int h2);
	
};
#endif