/*

* Copyright (c) 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 "AknFepVietnameseToneManager.h"

#include "AknFepManager.h"

CAknFepVietnameseToneManager::CAknFepVietnameseToneManager()

    {

    }

CAknFepVietnameseToneManager::~CAknFepVietnameseToneManager()

    {

    }

CAknFepVietnameseToneManager* CAknFepVietnameseToneManager::NewL()

    {

    CAknFepVietnameseToneManager* self = new (ELeave) CAknFepVietnameseToneManager;

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

void CAknFepVietnameseToneManager::ConstructL()

    {

    }

void CAknFepVietnameseToneManager::StopToneMarkLooping()

    {

    iToneIndex = 0;

    iVowelIndex = 0;

    iIsLooping = EFalse;

    }

TBool CAknFepVietnameseToneManager::StartToneMarkLooping()

    {

    __ASSERT_DEBUG(iFepMan != NULL, 

        RDebug::Print(

        _L("In CAknFepVietnameseToneManager::StartLooping,\nINVALID PARAM: Empty Fep Manager!")));

    StopToneMarkLooping();

    const TText prevChr = iFepMan->PreviousChar();

    // Judge if the prevChr is a vowel or not

    for (TUint i = 0; i < sizeof(VietVowelList) / sizeof(TText); ++i)

        {

        if (prevChr == VietVowelList[i])

            {

            iIsLooping = ETrue;

            iVowelIndex = i;

            break;

            }

        }

    return iIsLooping;

    }

TText CAknFepVietnameseToneManager::GetVowelWithToneMark() const

    {

    // First vowel row lists those tone marks themselves

    return VietToneMatrix[iVowelIndex+1][iToneIndex];

    }

void CAknFepVietnameseToneManager::StartKeyLooping(TInt aKey)

    {

    iLoopingKey = aKey;

    iIsKeyLooping = ETrue;

    iIsLoopingCombined = EFalse;

    }

void CAknFepVietnameseToneManager::StopKeyLooping()

    {

    iLoopingKey = 0;

    iIsKeyLooping = EFalse;

    iIsLoopingCombined = EFalse;

    }

TInt CAknFepVietnameseToneManager::ToneMarkIndex() const

    {

    const TText prevChr = iFepMan->PreviousChar();

    // All tone mark is after number in product key mapping.

    // Notice: The order in product key mapping should be the same with in tone mark array. 

    for (TUint i = 0; i < KNumberOfToneMarks; ++i)

        {

        TBuf<1> num;

        num.Num( i + 2 );

        if (prevChr == num [0])

            {

            return i;

            }

        }

    return KErrNotFound;

    }

TBool CAknFepVietnameseToneManager::GetLoopingToneMarkVowel( TText& aText ) const

    {

    const TText prev2prevChr = iFepMan->PreviousToPreviousChar( ETrue );

    // Judge if the previous to previous Character is a vowel or not

    TInt vowelIndex = KErrNotFound;

    for (TUint i = 0; i < sizeof(VietVowelList) / sizeof(TText); ++i)

        {

        if ( prev2prevChr == VietVowelList[i] )

            {

            vowelIndex = i;

            break;

            }

        }

    if (vowelIndex >= 0)

        {

        aText =  VietToneMatrix[vowelIndex+1][ ToneMarkIndex() ];

        return ETrue;

        }

    return EFalse;

    }