/*

* Copyright (c) 2005-2010 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 of HWR engine

*

*/

//SYSTEM INCLUDES

#include <AknFepGlobalEnums.h>

#include <aknfeppeninputenums.h>

#include <PtiHwrRecognizer.h>

#include <e32property.h>

#include <peninputcommonlayoutglobalenum.h>

#include "ptidefs.h"

//USER INCLUDES

#include "peninputfingerhwrarengine.h"

#include "peninputfingerhwrardatastore.h"

// CONSTANT DEFINITION HEADER

#include "peninputfingerhwrarstoreconstants.h"

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

// Symbian constructor

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

//

CPeninputFingerHwrArEngine* CPeninputFingerHwrArEngine::NewL( CPtiEngine* aPtiEngine, 

    CPeninputFingerHwrArDataStore* aOwner )

    {

    CPeninputFingerHwrArEngine* self = new ( ELeave ) CPeninputFingerHwrArEngine();

    CleanupStack::PushL( self );

    self->ConstructL( aPtiEngine, aOwner );

    CleanupStack::Pop( self );//self

    return self;

    }

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

// destructor

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

//

CPeninputFingerHwrArEngine::~CPeninputFingerHwrArEngine()

    {

    if( iOwnPtiEngine )

        {

        delete iPtiEngine;

        }

    delete iCustomKeymap;

    delete iIdle;

    iNeedPermittedRanges.Close();

    }

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

// Do recoginize by engine

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

//

void CPeninputFingerHwrArEngine::DoRecognizeL( const RArray<TPoint>& aTraceData, 

    RPointerArray<HBufC>& aCandidates )

    {

    if ( !iRecognizer)

        {

        DoIdleConstructL();

        }

    TPoint ctrlStrokeEndMark = iOwner->StrokeEndMarkFromControl();

    if ( ctrlStrokeEndMark != iRecognizer->StrokeEndMark() )

        {

        ConvertStrokeEndMark( CONST_CAST( RArray<TPoint>&, aTraceData ), 

            iOwner->StrokeEndMarkFromControl(), 

            iRecognizer->StrokeEndMark() );

        iOwner->SetStrokeEndMark(); // make control's stroke end mark info same to engine

        }

    aCandidates.ResetAndDestroy();

    iRecognizer->Recognize( aTraceData, aCandidates ); 

    }

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

// Set primary and auxiliary ranges for hwr engine

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

//

void CPeninputFingerHwrArEngine::SetRanges( const RArray<TInt>& aPermittedRanges )

    {

    TRAP_IGNORE( SetRangesL( aPermittedRanges ) );

    }

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

// Set primary and auxiliary ranges for hwr engine

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

//

void CPeninputFingerHwrArEngine::SetRangesL( const RArray<TInt>& aPermittedRanges )

    {

   	ASSERT( aPermittedRanges.Count() > 0 );

    if ( !iRecognizer )

        {

    	iNeedPermittedRanges.Reset();

    	for ( TInt i = 0; i < aPermittedRanges.Count(); i++ )

    	    {

            iNeedPermittedRanges.Append( aPermittedRanges[i] );

    	    }

    	iNeedSetRange = ETrue;

    	return;    

        }

    else 

    	{

        iPremaryRange = aPermittedRanges[0];

        iRangeCount = aPermittedRanges.Count();

        SetCandidatesMaxCount( KCandidateCount );

        TRecognitionRange range;

        SetRecognitionRange( aPermittedRanges[0], range );

        iRecognizer->SetRange( range );

        SetCase( iCase );

    	}

    }

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

// Set case

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

//

void CPeninputFingerHwrArEngine::SetCase( const TInt aCase )

    {

    iCase = aCase;

    if ( !iRecognizer )

        {

    	iNeedSetCase = ETrue;

        }

    else

        {

        // set letter to lower first when LowerCase

	    // set letter to upper first when UpperCase and TextCase

        if ( aCase == ECaseLower )

            {

            iRecognizer->SetFirstLetterOrder( ELowerFirst );

            }

        else

            {

            iRecognizer->SetFirstLetterOrder( EUpperFirst );

            }

        }

    }

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

// Set number mode for hwr engine

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

//

void CPeninputFingerHwrArEngine::SetNumberMode( const TAknEditorNumericKeymap& aNumberMode )

    {

    iNumberMode = aNumberMode;

    if ( !iRecognizer )

        {

        iNeedSetNumberMode = ETrue;

        }

    else

        {

        iRecognizer->SetNumberMode( aNumberMode );

        if( aNumberMode !=  EKeymapFromResource )

            {

            ResetCustomKeyMap();

            }

        }

    }

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

// Get stroke end mark from hwr engine

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

//

TPoint CPeninputFingerHwrArEngine::StrokeEndMark() const

    {

	TPoint strokeEndMark( KDefaultStrokeEndMarkX, KDefaultStrokeEndMarkY );

    if ( iRecognizer )

        {

        strokeEndMark = iRecognizer->StrokeEndMark();

        }

	return strokeEndMark;

    }

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

// Set primary candidate num for hwr engine

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

//

TInt CPeninputFingerHwrArEngine::SetPrimaryCandidateNum( const TInt aNum )

    {

    if ( iRecognizer )

        {

        return iRecognizer->SetCandidateNum( aNum );

        }

    else

        {

        return KErrGeneral;

        }

    }

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

// Set total candidate num that should be shown

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

//

void CPeninputFingerHwrArEngine::SetCandidatesMaxCount( const TInt aCount )

    {

    iTotalCandidateNum = aCount;

    }

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

// Set language

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

//

void CPeninputFingerHwrArEngine::SetLanguageL( const TInt aLanguage )

    {

    if ( ( iLanguage == aLanguage ) ||

         ( aLanguage != ELangArabic ) )

        {

        return;

        }

    iLanguage = aLanguage;

	iRecognizer = NULL;

	if( !iIdle->IsActive() )

	    {

	    iIdle->Start( TCallBack( BackgroundTaskL, this ) );

	    }

    }

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

// Set recognition range for hwr engine

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

//

void CPeninputFingerHwrArEngine::SetCustomKeymapL( const TDesC& aKeyMap )

    {

    ResetCustomKeyMap();

    iCustomKeymap = HBufC::NewL( aKeyMap.Length() + KNumberString().Length() );

    iCustomKeymap->Des().Copy( KNumberString() );

    iCustomKeymap->Des().Append( aKeyMap );

    }

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

// Set recognition range for hwr engine

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

//

void CPeninputFingerHwrArEngine::ResetCustomKeyMap()

    {

    delete iCustomKeymap;

    iCustomKeymap = NULL;

    }

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

// CPeninputFingerHwrArEngine::BackgroundConstructL

// Do background construct.

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

//

TBool CPeninputFingerHwrArEngine::BackgroundTaskL( TAny* aPtr )

    {

    CPeninputFingerHwrArEngine* self = static_cast<CPeninputFingerHwrArEngine*>( aPtr );

    self->DoIdleConstructL();

    return EFalse;

    }

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

// Set hand writing area size

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

//

TInt CPeninputFingerHwrArEngine::SetInputAreaSize(TSize& aSize)

    {

    return iRecognizer ? iRecognizer->SetInputAreaSize(aSize) : KErrNotFound;     

    }

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

// Set hand writing screen size

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

//

TInt CPeninputFingerHwrArEngine::SetScreenSize(TSize& aSize)    

    {

    return iRecognizer ? iRecognizer->SetScreenSize(aSize) : KErrNotFound;

    }

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

// C++ constructor

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

//

CPeninputFingerHwrArEngine::CPeninputFingerHwrArEngine()

    {

    iNeedSetNumberMode = EFalse;

    iNeedSetCase = EFalse;

    iNeedSetRange = EFalse;

    iRecognizer = NULL;    

    iOwnPtiEngine = EFalse;

    }

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

// Second phase constructor

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

//

void CPeninputFingerHwrArEngine::ConstructL( CPtiEngine* aPtiEngine, 

    CPeninputFingerHwrArDataStore* aOwner )

    {

    if( !aPtiEngine )

        {

        iPtiEngine = CPtiEngine::NewL( ETrue );

        iOwnPtiEngine = ETrue;

        }

    else

    	{

    	iPtiEngine = aPtiEngine;

    	}

    iIdle = CIdle::NewL( CActive::EPriorityIdle );

    iOwner = aOwner;

    }

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

// Set recognition range for hwr engine

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

//

void CPeninputFingerHwrArEngine::SetRecognitionRange( const TInt aRange, 

    TRecognitionRange& aRecognitionRange )

    {

    aRecognitionRange.iLanguage = TLanguage( iLanguage );

    switch ( aRange )

        {

        case ERangeNative:

			{

			aRecognitionRange.iSubRange = EPtiRangeNative;

			}

            break;

        case ERangeEnglish:

            {

            aRecognitionRange.iLanguage = ELangEnglish;

            aRecognitionRange.iSubRange = EPtiRangeLatin;  

            }

            break;

        case ERangeNumber:

            {

            aRecognitionRange.iSubRange = EPtiRangeNumber;

            }

            break;

        case ERangeNativeNumber:

            {

            //convert to ERangeNumber to let engine recognize both native number

            //and latin number. 

            aRecognitionRange.iSubRange = EPtiRangeNumber;

            }

            break;

        default:

            break;

        }

    }

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

// CPeninputFingerHwrArEngine::DoIdleConstructL

// Do background construct.

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

//

void CPeninputFingerHwrArEngine::DoIdleConstructL()

    {

    if ( iRecognizer )

        {

        return;

        }

	iRecognizer = iPtiEngine->GetHwrRecognizerL( TLanguage( iLanguage ) );

	iOwner->SetStrokeEndMark();

	SetPrimaryCandidateNum( KPremaryCandidateCount );

    if ( iNeedSetRange )

        {

        SetRanges( iNeedPermittedRanges );

        iNeedPermittedRanges.Reset();

        iNeedSetRange = EFalse;        

        }

    if ( iNeedSetCase )

        {

    	SetCase( iCase );

    	iNeedSetCase = EFalse;

        }

    if ( iNeedSetNumberMode )

        {

    	SetNumberMode( TAknEditorNumericKeymap( iNumberMode ) );

    	iNeedSetNumberMode = EFalse;

        }

    }

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

// Convert stroke end mark

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

//

void CPeninputFingerHwrArEngine::ConvertStrokeEndMark( RArray<TPoint>& aTraceData, 

    TPoint aPnt1, TPoint aPnt2 )

    {

    TInt count = aTraceData.Count();

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

        {

    	if ( aTraceData[i] == aPnt1 )

    	    {

    		aTraceData.Remove( i );

    		aTraceData.Insert( aPnt2, i );

    	    }

        }

    }    

void CPeninputFingerHwrArEngine::GetTopGuideLinePos(TInt& aPos)

    {

    if(iRecognizer)

        {

        iRecognizer->GetTopGuideLinePos(aPos);

        }

    }

void CPeninputFingerHwrArEngine::GetBottomGuideLinePos(TInt& aPos)

    {

    if(iRecognizer)

        {

        iRecognizer->GetBottomGuideLinePos(aPos);

        }

    }

//End Of File