/*

* Copyright (c) 2008 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:  Declares main application class.

 *

*/

#ifndef __DECODE_H

#define __DECODE_H

// INCLUDES

#include "hidkeys.h"

// FORWARD DECLARATIONS

class CScanCodeStore;

class CKeyboardLayout;

class TDecodedKeyInfo;

class TKeyEventInfo;

// CLASS DECLARATION

class CKeyboardDecoder : public CBase

    {

public:

    static CKeyboardDecoder* NewL();

    virtual ~CKeyboardDecoder();

    void Event(const TKeyEventInfo& aKeyEvent, TDecodedKeyInfo &aDecodedKeys);

    void SetLayout(CKeyboardLayout* aLayout);

    void Reset();

private:

    CKeyboardDecoder();

    void ConstructL();

    void ProcessDeadKeys(TUint16 aUnicodeKey, TInt aHidKey, TInt aUsagePage,

            TDecodedKeyInfo &aDecodedKeys);

    TBool HandleRightAlt(const TKeyEventInfo &aEvent,

            TDecodedKeyInfo& aDecodedKeys);

private:

    TTranslatedKey iDeadKey;

    CKeyboardLayout* iLayout;

    CScanCodeStore* iScanCodes;

    TBool iAltGrSequence;

    TInt iNumKeysDown;

    };

#endif