--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/filehandling/fileconverterfw/SRC/INBUF.CPP	Tue Feb 02 10:12:00 2010 +0200
@@ -0,0 +1,112 @@
+// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#include <e32base.h>
+#include <e32def.h>
+
+#include <f32file.h> // for CFileImportBuffer
+#include <s32file.h>
+#include <s32stor.h>
+
+#include <inbuf.h>
+
+//
+// class CImportBufferBase
+//
+
+EXPORT_C CImportBufferBase::CImportBufferBase(TInt aSize)
+	:iMaxSize(aSize)
+	{}
+
+EXPORT_C CImportBufferBase::~CImportBufferBase()
+	{
+	delete iImportBuffer;
+	}
+
+EXPORT_C void CImportBufferBase::ConstructL()
+	{
+	iImportBuffer=HBufC8::NewL(iMaxSize);
+	ResetImportBuffer();
+	}
+
+EXPORT_C void CImportBufferBase::ResetImportBuffer()
+//
+	{
+	iReadPtr=CONST_CAST(TText8*,iImportBuffer->Ptr());
+	iTBase=iReadPtr;
+	iEndBuf=iReadPtr;
+	}
+
+EXPORT_C void CImportBufferBase::ResetReadPtr()
+	{
+	iReadPtr=iTBase;
+	}
+
+EXPORT_C TInt CImportBufferBase::ReadL(TText8& aByte)
+	{
+ 	if (iReadPtr == iEndBuf)
+		{
+		TInt err = FillImportBuf();
+		if (err)
+			return err;
+		}
+	aByte = *(iReadPtr++);
+	return KErrNone;
+	}
+
+EXPORT_C TInt CImportBufferBase::SeekL(TSeek /*aSeekMode*/, TInt /*anOffset*/)
+	{
+	// not implemented
+	return KErrNotSupported;
+	}
+
+EXPORT_C TInt CImportBufferBase::MaxSize()
+	{
+	return iMaxSize;
+	}
+
+EXPORT_C void CImportBufferBase::SetLength(TInt aLength)
+	{
+	iEndBuf=iTBase+aLength;
+	}
+
+//
+// class CFileImportBuffer
+//
+
+EXPORT_C CFileImportBuffer::CFileImportBuffer(RFile aSource, TInt aMaxSize)
+	: CImportBufferBase(aMaxSize), iSource(aSource)
+	{}
+
+EXPORT_C TInt CFileImportBuffer::SeekL(TSeek aSeekMode, TInt anOffset)
+	{
+	TInt err=iSource.Seek(aSeekMode, anOffset);
+	if (err==KErrNone)
+		return FillImportBuf();
+	else
+		return err;
+	}
+
+EXPORT_C TInt CFileImportBuffer::FillImportBuf()
+	{
+  	TPtr8 buf=iImportBuffer->Des();
+	iSource.Read(buf,MaxSize());
+	SetLength(buf.Length());
+	ResetReadPtr();
+	if (buf.Length() == 0)
+		return KErrEndOfInput;
+	else
+		return KErrNone;
+	}