/*

 * Copyright (c) 2006-2009 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:

 * Name        : consolestream.h

 * Part of     : stdio server

 * To handle console read and write

 * 

 *

 */

 #ifndef _CONSOLESTREAM_H_

 #define _CONSOLESTREAM_H_

 #include "streambase.h" //CStreamBase

 #include "ReadRequestHandler.h" //MRead and CReadRequestHandler

 #include <e32keys.h>

 class CConsoleBase;

 //Enumerations for the console echo - server side

 enum TConsoleEcho

 	{

 	EOff = 0, //Turn Off the echo

 	EOn = 1,  //Turn On the echo

 	EPrintValid = 33, //Printable ascii character set <33-126>

 	EPrintInvalid=127 

 	};

 //-----------------------------------------------------------------------

 //Class name:  CConsoleStream

 //Description: This class represents the console stream abstraction.

 // 			   It is created through the factory class CConsoleStreamFactory

 //-----------------------------------------------------------------------

 class CConsoleStream : public CStreamBase

 	{

 public:

     static CConsoleStream* NewL(TInt aWidth, TInt aHeight);

     virtual void WriteL(TDes8& aDes);

     virtual void Read(TRequestStatus& aStatus, const TInt aLength);

  	~CConsoleStream();

  	virtual void ReadCancel();

  	TDes8& Buf();

  	TInt SetEcho(TUint8 aEcho);

  	TStreamType Type() { return EConsole;}

 private:

     CConsoleStream();	

     void ConstructL(TSize aConsoleSize);	 	 

     CConsoleBase* iConsole;

     TInt iBufPos;

     TUint8 iEchoVal; //decides what to echo

     void HandleBuf(TKeyCode & key);

     TBuf8<1> iTbuf;

     };

  #endif //_CONSOLESTREAM_H_