/*

* Copyright (c) 2002-2005 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:  Pen input related enums

*

*/

#ifndef AKNFEPVKBPINYINANALYSER_H

#define AKNFEPVKBPINYINANALYSER_H

#include <e32base.h>

class TSpellBand;      

class CPinyinAnalyserDbFeed;

/**

 *  Composition no chars ui state

 *  It provides key event handling and internal event handling in composition no chars state

 *

 *  @lib peninputvkbcn.lib

 *  @since S60 v3.2

 */

class CAknFepVkbPinyinAnalyser : public CBase

    {

public:

    /**

     * Two-phased constructor.

     *

     * @since S60 v3.2

     * @param aDb The database file for pinyin or spell

     * @return The pointer point to CAknFepVkbPinyinAnalyser type object

     */

    static CAknFepVkbPinyinAnalyser* NewL( CPinyinAnalyserDbFeed* aDb );

    /**

     * Destructor.

     *

     * @since S60 v3.2

     */

    virtual ~CAknFepVkbPinyinAnalyser();

    /**

     * Process key event

     *

     * @since S60 v3.2

     * @param aData Carry information of key pressed

     * @return ETrue means event was responsed, otherwise EFalse

     */

    TBool AnalyzeL(const TDesC& aInputString);

    HBufC* LastAnalysisResult();

private:

    CAknFepVkbPinyinAnalyser();

    void ConstructL( CPinyinAnalyserDbFeed* aDb );

    TBool DetailAnalyse(const TDesC& aInputString);

    TBool FindSpell(const TDesC& aSpell, TInt& aSameLength);

    TInt  Compare(const TDesC& aFirst, const TDesC& aSecond, TInt& aSameLength);

private:

    TSpellBand* iParagraph;

    TPtrC*      iSpellLibrary;

    HBufC*      iLastResult;

    RArray<TInt> iSeperators;

    CPinyinAnalyserDbFeed* iDb;

    TBool   iAnalysisFlag;

    };

#endif // AKNFEPVKBPINYINANALYSER_H