williamr@2: // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
williamr@2: // All rights reserved.
williamr@2: // This component and the accompanying materials are made available
williamr@2: // under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
williamr@2: // which accompanies this distribution, and is available
williamr@2: // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
williamr@2: //
williamr@2: // Initial Contributors:
williamr@2: // Nokia Corporation - initial contribution.
williamr@2: //
williamr@2: // Contributors:
williamr@2: //
williamr@2: // Description:
williamr@2: //
williamr@2: 
williamr@2: #if !defined(__INBUF_H__)
williamr@2: #define __INBUF_H__
williamr@2: 
williamr@2: #if !defined(__F32FILE_H__)
williamr@2: #include <f32file.h>
williamr@2: #endif
williamr@2: 
williamr@2: #if !defined(__S32STOR_H__)
williamr@2: #include <s32stor.h>
williamr@2: #endif
williamr@2: 
williamr@2: const TInt KErrEndOfInput = -1000;
williamr@2: 
williamr@2: 
williamr@2: class CImportBufferBase : public CBase
williamr@2: /**
williamr@2: The purpose of this class is to provide a method of
williamr@2: abstracting the source of an input through a buffer
williamr@2: The class is intended to be used for a single input then destroyed
williamr@2: @publishedPartner
williamr@2: @deprecated>
williamr@2: */
williamr@2: 	{
williamr@2: public:
williamr@2: 	IMPORT_C CImportBufferBase(TInt aMaxSize);
williamr@2: 	IMPORT_C ~CImportBufferBase();
williamr@2: 	IMPORT_C void ConstructL();
williamr@2: 	IMPORT_C TInt ReadL(TText8& aByte);
williamr@2: 	// !! Descriptor versions of ReadL useful?
williamr@2: 	IMPORT_C virtual TInt SeekL(TSeek aSeekMode, TInt anOffset);
williamr@2: 	IMPORT_C void ResetImportBuffer();
williamr@2: 	IMPORT_C void ResetReadPtr();
williamr@2: protected:
williamr@2: 	virtual TInt FillImportBuf()=0;
williamr@2: 	IMPORT_C TInt MaxSize();
williamr@2: 	IMPORT_C void SetLength(TInt aLength);
williamr@2: protected:
williamr@2: 	TInt iImportBufferLength; 
williamr@2: 	HBufC8* iImportBuffer;
williamr@2: private:
williamr@2: 	TText8* iReadPtr;
williamr@2: 	TText8* iEndBuf;
williamr@2: 	TText8* iTBase;
williamr@2: 	TInt iMaxSize;
williamr@2: 	};
williamr@2: 
williamr@2: 
williamr@2: class CFileImportBuffer : public CImportBufferBase
williamr@2: /**
williamr@2: Buffered import from a file
williamr@2: @publishedPartner
williamr@2: @deprecated
williamr@2: */
williamr@2: 	{
williamr@2: 	// Buffered import from a file
williamr@2: public:
williamr@2: 	IMPORT_C CFileImportBuffer(RFile aSource, TInt aMaxSize);
williamr@2: 	IMPORT_C TInt SeekL(TSeek aSeekMode, TInt anOffset);
williamr@2: protected:
williamr@2: 	IMPORT_C TInt FillImportBuf();
williamr@2: private:
williamr@2: 	RFile iSource;
williamr@2: 	};
williamr@2: 
williamr@2: #endif // __INBUF_H__