//=========================================================
// AsFile.h : head file Code from Notepadre
// Õë¶Ô²»Í¬±àÂë¸ñʽÎļþµÄ¶Áд´¦Àí
//
// Author:asoft
// Modify:2009/07/03
//-----------------------------------------------
// Ó÷¨:
//  ReadÎļþ
//	CFile					file;
//	HLOCAL					memBuffer;
//	COIFile::e_FileType		eFileType   = COIFile::eAutoFileType;
//	COIFile::e_FileFormat	eFileFormat = COIFile::eAutoFileFormat;
//	DWORD					dwNewSize;
//	TCHAR					*pBuffer = NULL;
//	CString					strData;

//	TRY
//	{		
//		if ( !file.Open( strXMLPath, CFile::shareDenyWrite | CFile::modeRead ) )
//			return false;
//		memBuffer = COIFile::Load( &file, eFileType, eFileFormat, dwNewSize );
//		file.Close( );
//		pBuffer = static_cast<TCHAR*> (::LocalLock (memBuffer));
//		_tcscpy_s( strData.GetBuffer( dwNewSize ), dwNewSize, pBuffer );
//		strData.ReleaseBuffer( );

//		::LocalUnlock( memBuffer );
//		::LocalFree( memBuffer );		
//	}
//	CATCH_ALL(e)
//	{
//		file.Close( );
//		THROW_LAST ();
//	}
//	END_CATCH_ALL

//  SaveÎļþ
//	CFile	file;
//
//	TRY
//	{	
//		if ( !file.Open( strFilePath, CFile::modeCreate | CFile::modeWrite ) )
//			return false;
//		COIFile::Save( strData.GetBuffer( strData.GetLength() ), 
//					strData.GetLength(), COIFile::eUTF8, COIFile::eWindows, &file );
//		file.Close( );
//	}
//	CATCH_ALL(e)
//	{
//		file.Close( );
//		THROW_LAST ();
//	}
//	END_CATCH_ALL
//-----------------------------------------------
//
//=========================================================

#pragma once
#include "afx.h"

class  CMBFile
	:public CObject
{
public:
	CMBFile(void);
	~CMBFile(void);

public:
	enum e_FileType {eANSI, eUnicode, eUnicodeBigEndian, eUTF8, eAutoFileType,
		eINVALID};
	enum e_FileFormat {eWindows, eUNIX, eMacintosh, eAutoFileFormat};

	static HLOCAL Load (CFile *pFile, e_FileType &eFileType,
		e_FileFormat &eFileFormat, DWORD &dwNewSize);
	static void Save (const TCHAR *pszText, const DWORD dwChars,
		const e_FileType eFileType, const e_FileFormat eFileFormat,
		CFile *pFile);
	static void GetFileType (CFile *pFile, e_FileType &eFileType,
		DWORD &dwSize);
private:
	static const DWORD m_dwBufferSize;

	static void Read (CFile *pFile, unsigned char *pucText,
		const DWORD dwSize);
	
	static DWORD CountBytes (unsigned char *pucText, const DWORD dwSize,
		const e_FileType &eFileType, e_FileFormat &eFileFormat);
	static DWORD CountCharsANSI (const unsigned char *pucText,
		const DWORD dwSize, unsigned __int64 &ui64Windows,
		unsigned __int64 &ui64UNIX, unsigned __int64 &ui64Macintosh);
	static DWORD CountCharsUnicode (const TCHAR *pszText, const DWORD dwSize,
		unsigned __int64 &ui64Windows, unsigned __int64 &ui64UNIX,
		unsigned __int64 &ui64Macintosh);
	// Special case: byte swap whilst counting for efficiencies sake
	static DWORD CountCharsUnicodeBE (TCHAR *pszText,
		const DWORD dwSize, unsigned __int64 &ui64Windows,
		unsigned __int64 &ui64UNIX, unsigned __int64 &ui64Macintosh);
	static DWORD CountCharsUTF8 (const unsigned char *pucText,
		const DWORD dwSize, unsigned __int64 &ui64Windows,
		unsigned __int64 &ui64UNIX, unsigned __int64 &ui64Macintosh);
	inline static wchar_t Swap (wchar_t wc);
	static DWORD CheckUTF8Char (const unsigned char *pucBytes, const DWORD dwCharsLeft);
	static DWORD DecodeUTF8Char (const unsigned char * &pucBytes, wchar_t &wcChar);
	static void LoadUTF8File (CFile *pFile, const e_FileFormat eFileFormat,
		wchar_t *pszText, const DWORD dwSize);
	static void ExpandText (TCHAR *pszText, const DWORD dwSize,
		const DWORD dwChars, const e_FileType eFileType,
		const e_FileFormat eFileFormat);
	static void ZerosToSpaces (TCHAR *pszText, const DWORD dwChars);
	static void SaveHeader (CFile *pFile, const e_FileType eFileType);
	static void FillBuffer (const TCHAR * &lpszText, DWORD &dwCharCount,
		const e_FileType eFileType, const e_FileFormat eFileFormat,
		unsigned char *ucBuffer, const DWORD dwBufferSize, DWORD &dwSize);

};