/*

* Copyright (c) 2005-2006 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:  Implementation for chinese peninput full screen hwr

*

*/

//SYSTEM INCLUDE

#include <centralrepository.h>

#include <settingsinternalcrkeys.h>

//FEP INCLUDE

#include <aknfeppeninputenums.h>

#include <AknFepGlobalEnums.h>

#include <AknFepInternalCRKeys.h>

//USER INCLUDE

#include "peninputhwrfscndatastore.h"

#include "peninputhwrtriggerstr.h"

#include "peninputhwrengine.h"

//CONSTANT DEFINATION HEADER

#include "peninputhwrfscnstoreconstants.h"

#include <peninputhwrfscreencn.rsg>

#include "peninputpluginutils.h"

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

// Symbian constructor

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

//

CPeninputHwrfscnDataStore* CPeninputHwrfscnDataStore::NewL( 

    CPtiEngine* aPtiEngine )

    {

    CPeninputHwrfscnDataStore* self = new ( ELeave ) 

        CPeninputHwrfscnDataStore();

    CleanupStack::PushL( self );

    self->ConstructL( aPtiEngine );

    CleanupStack::Pop( self );//self

    return self;

    }

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

// C++ constructor

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

//

CPeninputHwrfscnDataStore::CPeninputHwrfscnDataStore()

    {

    iLanguage = ELangNone;

    iCurrentNumberMode = EAknEditorStandardNumberModeKeymap;

    }

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

// destructor

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

//

CPeninputHwrfscnDataStore::~CPeninputHwrfscnDataStore()

    {

    iSubscriberList.Close();

    iCandidates.ResetAndDestroy();

    iCandidates.Close();

    iPredictives.ResetAndDestroy();

    iPredictives.Close();

    iRangeStartPos.Close();

    iPermittedRanges.Close();

    iKeyMappingIdList.Close();

    iKeyMappingStringList.ResetAndDestroy();

    iKeyMappingStringList.Close();

    delete iGSRepositoryWatcher;

    delete iRepositoryFep;

    delete iRepositorySetting;

    delete iTriggerStr;

    delete iHwrEngine;

    delete iUserDefinedResource;

    }

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

// Second phase constructor

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

//

void CPeninputHwrfscnDataStore::ConstructL( CPtiEngine* aPtiEngine )

    {

    //create the repository for fep settings    

    iRepositoryFep = CRepository::NewL( KCRUidAknFep );

    //create the repository for gereral settings

    iRepositorySetting = CRepository::NewL( KCRUidPersonalizationSettings );

    //create the repository watcher for general settings

    iGSRepositoryWatcher = CAknFepRepositoryWatcher::NewL( 

        KCRUidPersonalizationSettings, 

        TCallBack( HandleGSRepositoryCallBack, this ),

        iRepositorySetting );

    //create the trigger string

    iTriggerStr = new ( ELeave ) CAknFepHwrTriggerStr();

    //create the hwr engine

    iHwrEngine = CAknFepHwrEngine::NewL( aPtiEngine, this );

    //initialize the key mapping list

    InitKeyMappingListL();

    }

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

// Initialize the key mapping list

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

//   

void CPeninputHwrfscnDataStore::InitKeyMappingListL()

    {

     //read the key maping string from resource

    TResourceReader reader;

    CCoeEnv::Static()->CreateResourceReaderLC( reader, 

        R_AKN_FEP_HWR_KEY_MAPPING_STRING_LIST ); 

    const TInt count = reader.ReadInt16();

    for ( TInt i = 0; i < count; i++ )

        {

        iKeyMappingIdList.Append( reader.ReadInt16() );

        TPtrC ptr = reader.ReadTPtrC();

        iKeyMappingStringList.Append( ptr.Alloc() );

        }

    iCurrentNumberMode = EAknEditorStandardNumberModeKeymap;

    CleanupStack::PopAndDestroy();

    }

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

// Is candidate in Chinese range

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

//

TBool CPeninputHwrfscnDataStore::IsChinese( TInt aCandidateIndex ) const

    {

    TUint16 candidate =  ( *iCandidates[aCandidateIndex] )[0];

    if( candidate >= 0x4E00 && candidate <= 0x9FA5 )

        {

        return ETrue;

        }

    return EFalse;

    }

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

// Is candidate in Chinese range

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

//

TBool CPeninputHwrfscnDataStore::IsValid( TInt aCandidateIndex ) const

    {

    return ( *iCandidates[aCandidateIndex] ).Length() > 0;

    }

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

// Is the language which has the homephonic effect.

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

//

TBool CPeninputHwrfscnDataStore::IsHomephonicLanguage()

	{

	if ( iLanguage == ELangPrcChinese || iLanguage == ELangTaiwanChinese )

	    {

	    return ETrue;

	    }

	return EFalse;   	

	}

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

// Do recoginize by engine

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

//

void CPeninputHwrfscnDataStore::DoRecognizeL( const RArray<TPoint>& aTraceData )

    {

    iHwrEngine->DoRecognizeL( aTraceData, iCandidates );

    SetCandidatesL();

    }

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

// Do predictive using trigger string

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

//

void CPeninputHwrfscnDataStore::DoPredictiveL()

    {

    // clear the predictives

    iPredictives.ResetAndDestroy();

    //if the Primary range is chinese

    TInt primaryRange = iPermittedRanges[0];

    if( primaryRange == ERangeNative )

    	{

        GetPredictivesOfPriRangeAsChineseL();		

        }

    //if the Primary range is english

    else if( primaryRange == ERangeEnglish )

        {

        GetPredictivesOfPriRangeAsEnglishL();

        }

    //if the Primary range is number        

    else if( primaryRange == ERangeNumber )

        {

        GetPredictivesOfPriRangeAsNumberL();

        }                  

    }

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

// Get predictives of primary range as chinese

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

//    

void CPeninputHwrfscnDataStore::GetPredictivesOfPriRangeAsChineseL()

    {

    TPtrC string = TriggerStr()->GetString();

    iHwrEngine->DoPredictiveL( string, iPredictives );

    if( PredictiveCount() == 0 )

    	{

    	TriggerStr()->SetLast();

    	iHwrEngine->DoPredictiveL( TriggerStr()->GetString(), iPredictives );            	

    	}

    SetPredictives();

    }

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

// Get predictives of primary range as Number

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

//    

void CPeninputHwrfscnDataStore::GetPredictivesOfPriRangeAsNumberL()

    {

    if( iPermittedRanges.Count() == 1 )

        {

        if( iCurrentNumberMode != EAknEditorPlainNumberModeKeymap )

            {

            HBufC* keyMappingBuf = KeyMappingStringL();

            CleanupStack::PushL( keyMappingBuf );

            TInt strLen = keyMappingBuf->Length();

            if( strLen > KNumberCount )

                {  

                const TUint16* keyMapingPtr = keyMappingBuf->Ptr();

                //keyMappingBuf always contains 0~9 number symbol

                //move the pointer to 11th char, right after 0~9 numbers, 

                //because we just need symbol not number

                keyMapingPtr += KNumberCount;

                TInt length = strLen - KNumberCount;

                for( TInt i = 0; i < length; i++ )

                    {

	                TBuf<1> charBuf;

                    charBuf.Append( ( keyMapingPtr + i ), 1 );

                    iPredictives.AppendL( charBuf.AllocL() );

                    }

                SetPredictives();

                }

            CleanupStack::PopAndDestroy( keyMappingBuf );

            }

        }

    else

        {

        TInt symCount = sizeof( NumberPredictSymCode )/sizeof( TUint16 ); 	

        for( TInt i = 0; i < symCount; i++ )

            {

	        TBuf<1> charBuf;

            charBuf.Append( NumberPredictSymCode[i] );

            iPredictives.AppendL( charBuf.AllocL() );

            }    

        SetPredictives();

        }    

    } 

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

// Get predictives of primary range as English

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

//    

void CPeninputHwrfscnDataStore::GetPredictivesOfPriRangeAsEnglishL()

    {

    TInt symCount = sizeof( EnglishPredictSymCode )/sizeof( TUint16 );

    for( TInt i = 0; i < symCount; i++ )

        {

	    TBuf<1> charBuf;

        charBuf.Append( EnglishPredictSymCode[i] );

        iPredictives.AppendL( charBuf.AllocL() );

        }

    if( iPredictives.Count() > 0 )

    	{

	    SetPredictives();    

    	}

    } 

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

// Do homophonic using trigger string

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

//

void CPeninputHwrfscnDataStore::DoHomophonicL( const TDesC& aString )

    {

    iHwrEngine->DoHomophonicL( aString, iCandidates );

    SetHomephonicCandidatesL();

    }

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

// Get the predictive count

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

//

TInt CPeninputHwrfscnDataStore::PredictiveCount() const

    {

    return iPredictives.Count();

    }

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

// Add property subscriber

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

//

void CPeninputHwrfscnDataStore::AddSubscriber( 

    MPeninputHwrfscnPropertySubscriber* aSubscriber )

    {

    if ( aSubscriber )

        {

        const TInt index = iSubscriberList.Find( aSubscriber );

        if ( index == KErrNotFound )

            {

            iSubscriberList.Append( aSubscriber );

            }

        }

    }

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

// Get the trigger string

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

//

CAknFepHwrTriggerStr* CPeninputHwrfscnDataStore::TriggerStr() const

    {

    return iTriggerStr;

    }

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

// Set permitted ranges

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

//

void CPeninputHwrfscnDataStore::SetPermittedRanges( TInt aPermittedRanges )

    {

    iPermittedRanges.Reset();

    //order can not be changed

    if ( aPermittedRanges & ERangeNative )

        {

        iPermittedRanges.Append( ERangeNative );

        }

    if ( aPermittedRanges & ERangeEnglish )

        {

        iPermittedRanges.Append( ERangeEnglish );

        }

    if ( aPermittedRanges & ERangeNumber )

        {

        iPermittedRanges.Append( ERangeNumber );

        }

    if ( aPermittedRanges & ERangeSymbol )

        {

        iPermittedRanges.Append( ERangeSymbol );

        }

    iIntRange = aPermittedRanges;

    NotifySubscriber( MPeninputHwrfscnPropertySubscriber::

        EPeninputHwrfscnPropertyPermittedRange );

    NotifySubscriber( MPeninputHwrfscnPropertySubscriber::

        EPeninputHwrfscnPropertyRange );

    // set primary and auxiliary ranges for hwr engine

    iHwrEngine->SetRanges( iPermittedRanges );

    }

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

// Get the permitted ranges

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

//

const RArray<TInt>& CPeninputHwrfscnDataStore::PermittedRanges() const

    {

    return iPermittedRanges;

    }

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

// Set permitted cases

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

//

void CPeninputHwrfscnDataStore::SetPermittedCases( TInt aPermittedCases )

    {

    iPermittedCases = aPermittedCases;

    NotifySubscriber( MPeninputHwrfscnPropertySubscriber::

        EPeninputHwrfscnPropertyPermittedCases );

    }

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

// Set Primary range

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

//

void CPeninputHwrfscnDataStore::SetPrimaryRange( TInt aPrimaryRange )

    {

    const TInt oldIndex = iPermittedRanges.Find( aPrimaryRange );

    if ( oldIndex > 0 )

        {

        iPermittedRanges.Sort();

        const TInt index = iPermittedRanges.Find( aPrimaryRange );

        iPermittedRanges.Remove( index );

        iPermittedRanges.Insert( aPrimaryRange, 0 );

        NotifySubscriber( 

            MPeninputHwrfscnPropertySubscriber::

            EPeninputHwrfscnPropertyRange );

        // set primary and auxiliary ranges for hwr engine

        iHwrEngine->SetRanges( iPermittedRanges );

        }

    }

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

// get Primary range

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

//

TInt CPeninputHwrfscnDataStore::PrimaryRange()

	{

	if( iPermittedRanges.Count() > 0 )

		{

	    return iPermittedRanges[0];			

		}

	return -1;

	}

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

// get Primary range

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

//	

TBool CPeninputHwrfscnDataStore::IsChinesePrimaryRange()

    {

    return ( iPermittedRanges[0] == ERangeNative );

    }

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

// Set case

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

//

void CPeninputHwrfscnDataStore::SetCase( TInt aCase )

    {

    iCase = aCase;

    NotifySubscriber( MPeninputHwrfscnPropertySubscriber::

        EPeninputHwrfscnPropertyCase );

    iHwrEngine->SetCase( iCase );

    }

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

// Judge if a language is Chinese

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

//

TBool CPeninputHwrfscnDataStore::LanguageIsChinese( TInt aLanguage )

    {

	if ( ( aLanguage == ELangPrcChinese ) ||

	    ( aLanguage == ELangHongKongChinese ) ||

	    ( aLanguage == ELangTaiwanChinese ) )

	    {

		return ETrue;

	    }

	return EFalse;    

    }

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

// Set real engine language

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

//

void CPeninputHwrfscnDataStore::SetEngineLanguageL( TInt aLanguage )

    {

    SetLanguageShowText( aLanguage );       

    iHwrEngine->SetLanguageL( aLanguage );

    iHwrEngine->SetPrimaryCandidateNum( KCandidateCount );

    }

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

// Set language show text

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

//

void CPeninputHwrfscnDataStore::SetLanguageShowText( TInt aLanguage )

	{

    AknPenInputUtils::GetISOLanguageCode( TLanguage( aLanguage ), 

        iLanguageShowText );

    }

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

// Set stroke end mark

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

//

void CPeninputHwrfscnDataStore::SetStrokeEndMark()

    {

    NotifySubscriber( MPeninputHwrfscnPropertySubscriber::

        EPeninputHwrfscnPropertyStrokeEndMark );

    }

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

// get stroke end mark from hwr engine