//**************************************************************************************
// Filename:	CUTextFileStream.h
// Copyright © 1999 Tomasz Kukielka. All rights reserved.
//
// Description:	
//
//**************************************************************************************
// Revision History:
// Tuesday, May 4, 1999 - Original
//**************************************************************************************

#ifndef _H_CUTextFile
#define _H_CUTextFile
#pragma once

#include "ConverterConstants.h"
#include "AFileFork.h"


#define HiByte(x)			((unsigned char)((unsigned short)(x) >> 8))
#define LoByte(x)			((unsigned char)(x))
#define SwapHiLoBytes(x)	( (unsigned short)((unsigned char)(x)<<8) | ((unsigned short)(x) >> 8) )

const Boolean	kTextIsUnicode		= true;
const Boolean	kTextIsNOTUnicode	= false;



class CUTextFileStream: public ARefFork
{
	public:	
							CUTextFileStream(const FSRef& inFileRef, SInt8 inPermissions);
		virtual				~CUTextFileStream();

//		virtual ByteCount	Read(	ByteCount inCount, void *inBuffer,
//									UInt16 inPosMode = fsAtMark, SInt64 inOffset = 0);
		OSStatus			ReadData(
									SInt32 &ioCount, void *inBuffer,
									UInt16 inPosMode = fsAtMark, SInt64 inOffset = 0);
							
		void				OpenDataForkForReading(Boolean isUnicode = kTextIsUnicode);
		void				OpenDataForkForWriting(Boolean isUnicode = kTextIsUnicode);

		virtual Boolean		IsTwoByteUnicode() { return (mByteOrder != kByteOrderUndefined); }
		virtual UniChar		GetByteOrderMark() { return mByteOrder; }

		static void			InvertByteOrder(UniCharPtr uniTextPtr, UniCharCount uniTextLen);

	protected:
		UniChar				mByteOrder;
};

#endif //_H_CUTextFile