/*

* Copyright (c) 2003-2007 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* 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:  ?Description

*

*/

// INCLUDE FILES

#include "InlineTextCompositeSource.h"

// MODULE TEMPLATES

// MODULE DATA STRUCTURES

_LIT( KBadCharacter, " " );

// ============================ MEMBER FUNCTIONS ===============================

EXPORT_C CInlineTextCompositeSource* CInlineTextCompositeSource::NewL()

    { 

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

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

CInlineTextCompositeSource::~CInlineTextCompositeSource()

    {

    // delete the pointed-to objects because this object owns them

    if (iInlineTextSourceArray)

        iInlineTextSourceArray->ResetAndDestroy();

    delete iInlineTextSourceArray;

    }

EXPORT_C void CInlineTextCompositeSource::InstallInlineTextSourceL( CInlineTextSource* aInlineTextSource )

    {

    if ( aInlineTextSource ) 

        iInlineTextSourceArray->AppendL( aInlineTextSource );

    }

TInt CInlineTextCompositeSource::GetNextInlineTextPosition(

    const TTmDocPos& aFrom, 

    TInt aMaxLength, 

    TTmDocPos& aNext)

    {

    TInt retValue = KErrNotFound;

    // For now, call CheckFormattingL() at the top of each 

    TTmDocPos to( aFrom.iPos + aMaxLength - 1, EFalse );

    if ( to < aFrom )

        {

        to = aFrom; // Makes at least a legal, if zero containing, range

        }

    TRAP_IGNORE( CheckFormattingL( aFrom, to ) );

    // The individual formatters are requested and the minimum position is returned

    TTmDocPos minDocPos(aFrom);

    minDocPos.iPos += ( aMaxLength + 2); // Ensure it is bigger than legal 

    TInt count = iInlineTextSourceArray->Count();

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

        {

        TTmDocPos thisNextPos;

        TInt err = iInlineTextSourceArray->At(i)

            ->GetNextInlineTextPosition( aFrom, aMaxLength, thisNextPos );

        if ( err == KErrNone ) // one has been found

            {

            if ( thisNextPos < minDocPos )

                {

                minDocPos = thisNextPos;

                retValue = KErrNone;

                }

            }

        }

    if ( retValue == KErrNone )

        aNext = minDocPos;

    return retValue;

    }

//

//

TPtrC CInlineTextCompositeSource::GetInlineText(const TTmDocPos& aAt)

    {

    TInt count = iInlineTextSourceArray->Count();

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

        {

        TPtrC retPtr;

        if ( iInlineTextSourceArray->At(i)->HasInlineTextAt( aAt, retPtr ) )

            return retPtr;

        }

#ifdef _DEBUG    

    TBuf<80> buf;

    buf.Format( _L("Bad fetch of inline text at Pos: %d  Trailing/Leading: %d"), 

        aAt.iPos,

        aAt.iLeadingEdge );

    RDebug::Print( buf );    

    __ASSERT_DEBUG( EFalse, Panic( EInlineTextBadInlineTextFetch ) );

#endif

    return KBadCharacter();

    }

//

// Formatting notification is just passed to all inline text formatters

//

void CInlineTextCompositeSource::CheckFormattingL(

    const TTmDocPos& aFrom, const TTmDocPos& aTo )

    {

    TInt count = iInlineTextSourceArray->Count();

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

        {

        iInlineTextSourceArray->At(i)->CheckFormattingL( aFrom, aTo );

        }

    }

CInlineTextCompositeSource::CInlineTextCompositeSource()

    {}

void CInlineTextCompositeSource::ConstructL()

    {

    iInlineTextSourceArray = new (ELeave) CInlineTextSourceArray(1); // Unit granularity

    }

void CInlineTextCompositeSource::EditObserver( TInt aStart, TInt aExtent )

    {

    TInt count = iInlineTextSourceArray->Count();

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

        {

        iInlineTextSourceArray->At(i)->EditObserver( aStart, aExtent );

        }

    }

//  End of File