/*

* Copyright (c) 2002-2006 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:  Implementation of the ScanListIterator class.

*

*/

#include "genscanlist.h"

#include "genscanlistiterator.h"

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

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

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

//

ScanListIterator::ScanListIterator(

    const ScanList& scan_list ) :

    current_m( &scan_list.data_m[0] ),

    scan_list_m( scan_list )

    {

    }

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

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

//

const ScanFrame* ScanListIterator::First()

    {

    if ( !scan_list_m.size_m )

        {

        return NULL;

        }

    /**

     * Data exist, set the iterator to the beginning of the container.

     */

    current_m = &scan_list_m.data_m[0];

    return current_m;

    }

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

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

//

const ScanFrame* ScanListIterator::Next()

    {

    if ( !scan_list_m.size_m )

        {

        return NULL;

        }

    current_m += ScanList::AddPadding( Size() );

    return Current();

    }

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

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

//

const ScanFrame* ScanListIterator::Current() const

    {

    if( current_m >= scan_list_m.data_m + scan_list_m.size_m )

        {

        return NULL;

        }

    return current_m;

    }

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

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

//

bool_t ScanListIterator::IsDone() const

    {

    return ( current_m >= scan_list_m.data_m + scan_list_m.size_m );

    }