1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // 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

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #if !defined(__INBUF_H__)

    17 #define __INBUF_H__

    18 

    19 #if !defined(__F32FILE_H__)

    20 #include <f32file.h>

    21 #endif

    22 

    23 #if !defined(__S32STOR_H__)

    24 #include <s32stor.h>

    25 #endif

    26 

    27 const TInt KErrEndOfInput = -1000;

    28 

    29 

    30 class CImportBufferBase : public CBase

    31 /**

    32 The purpose of this class is to provide a method of

    33 abstracting the source of an input through a buffer

    34 The class is intended to be used for a single input then destroyed

    35 @publishedPartner

    36 @deprecated>

    37 */

    38 	{

    39 public:

    40 	IMPORT_C CImportBufferBase(TInt aMaxSize);

    41 	IMPORT_C ~CImportBufferBase();

    42 	IMPORT_C void ConstructL();

    43 	IMPORT_C TInt ReadL(TText8& aByte);

    44 	// !! Descriptor versions of ReadL useful?

    45 	IMPORT_C virtual TInt SeekL(TSeek aSeekMode, TInt anOffset);

    46 	IMPORT_C void ResetImportBuffer();

    47 	IMPORT_C void ResetReadPtr();

    48 protected:

    49 	virtual TInt FillImportBuf()=0;

    50 	IMPORT_C TInt MaxSize();

    51 	IMPORT_C void SetLength(TInt aLength);

    52 protected:

    53 	TInt iImportBufferLength; 

    54 	HBufC8* iImportBuffer;

    55 private:

    56 	TText8* iReadPtr;

    57 	TText8* iEndBuf;

    58 	TText8* iTBase;

    59 	TInt iMaxSize;

    60 	};

    61 

    62 

    63 class CFileImportBuffer : public CImportBufferBase

    64 /**

    65 Buffered import from a file

    66 @publishedPartner

    67 @deprecated

    68 */

    69 	{

    70 	// Buffered import from a file

    71 public:

    72 	IMPORT_C CFileImportBuffer(RFile aSource, TInt aMaxSize);

    73 	IMPORT_C TInt SeekL(TSeek aSeekMode, TInt anOffset);

    74 protected:

    75 	IMPORT_C TInt FillImportBuf();

    76 private:

    77 	RFile iSource;

    78 	};

    79 

    80 #endif // __INBUF_H__