/*

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

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "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:  ?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