/*

* Copyright (c) 2008 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:   This is the source file for the CClockWorldItemProcessor class.

*

*/

// System includes

#include <e32base.h>

// User includes

#include "clockworlditemprocessor.h"

#include "clockworldcontainer.h"

#include "clock_debug.h"

// Literals

// Constants 

const TInt KEvenNumber( 2 );

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

// CClockWorldItemProcessor::NewL

// rest of the details are commented in the header

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

//

CClockWorldItemProcessor* CClockWorldItemProcessor::NewL( CClockWorldContainer* aContainer )

    {

    __PRINTS( "CClockWorldItemProcessor::NewL - Entry" );

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

    CleanupStack::PushL( self );

    self->ConstructL( aContainer );

    CleanupStack::Pop( self );

    __PRINTS( "CClockWorldItemProcessor::NewL - Exit" );

    return self;

    }

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

// CClockWorldItemProcessor::~CClockWorldItemProcessor

// rest of the details are commented in the header

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

//

CClockWorldItemProcessor::~CClockWorldItemProcessor()

    {

    __PRINTS( "CClockWorldItemProcessor::~CClockWorldItemProcessor - Entry" );

    Cancel();

    __PRINTS( "CClockWorldItemProcessor::~CClockWorldItemProcessor - Exit" );

    }

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

// CClockWorldItemProcessor::ProcessEachItem

// rest of the details are commented in the header

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

//

TInt CClockWorldItemProcessor::ProcessEachItem( TInt aIndex )

    {

    __PRINTS( "CClockWorldItemProcessor::ProcessEachItem - Entry" );

    TInt retValue( KErrNotFound );

    if( iContainer )

        {

        retValue = iContainer->RedrawItem( aIndex );

        }

    __PRINTS( "CClockWorldItemProcessor::ProcessEachItem - Exit" );

    return retValue;

    }

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

// CClockWorldItemProcessor::RunL

// rest of the details are commented in the header

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

//

void CClockWorldItemProcessor::RunL()

    {

    __PRINTS( "CClockWorldItemProcessor::RunL - Entry" );

    // Call the redraw for even number lisitems first and then for the odd number lisitems

    // This gives a faster loading effect on the hardware 	

    TInt returnValue( KErrNone );

    returnValue = ProcessEachItem( iDrawnListItem );

    if( returnValue )

        {

        iDrawnListItem = iDrawnListItem + KEvenNumber;	

        }  

    else if( KErrNone == iDrawnListItem % KEvenNumber )

        {             

        iDrawnListItem = KEvenNumber - 1;	             

        }

    else

        {

        Cancel();

        __PRINTS( "CClockWorldItemProcessor::RunL - Exit" );

        return;	

        }

    DoAsyncCallback();	

    __PRINTS( "CClockWorldItemProcessor::RunL - Exit" );

    }

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

// CClockWorldItemProcessor::DoCancel

// rest of the details are commented in the header

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

//

void CClockWorldItemProcessor::DoCancel()

    {

    __PRINTS( "CClockWorldItemProcessor::DoCancel - Entry" );

	// No Implementation Yet.

    __PRINTS( "CClockWorldItemProcessor::DoCancel - Exit" );

    }

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

// CClockWorldItemProcessor::CClockWorldItemProcessor

// rest of the details are commented in the header

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

//

CClockWorldItemProcessor::CClockWorldItemProcessor() : CActive( CActive::EPriorityStandard )

    {

    __PRINTS( "CClockWorldItemProcessor::CClockWorldItemProcessor - Entry" );

    CActiveScheduler::Add( this );

    DoAsyncCallback();

	__PRINTS( "CClockWorldItemProcessor::CClockWorldItemProcessor - Exit" );

    }

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

// CClockWorldItemProcessor::ConstructL

// rest of the details are commented in the header

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

//

void CClockWorldItemProcessor::ConstructL( CClockWorldContainer* aContainer )

    {

	__PRINTS( "CClockWorldItemProcessor::ConstructL - Entry" );

	iContainer = aContainer;

    iDrawnListItem = 0;	

    __PRINTS( "CClockWorldItemProcessor::ConstructL - Exit" );

    }

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

// CClockWorldItemProcessor::DoAsyncCallback

// rest of the details are commented in the header

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

//

void CClockWorldItemProcessor::DoAsyncCallback()

    {

    __PRINTS( "CClockWorldItemProcessor::DoAsyncCallback - Entry" );

        {

            {

            // Make sure this is the last Active Object in the list

            Deque();

            CActiveScheduler::Add( this );

            }

        }

    __PRINTS( "CClockWorldItemProcessor::DoAsyncCallback - Exit" );

    }

// End of file