1 /*

     2 * Copyright (c) 2002-2006 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Implementation of the ScanListIterator class.

    15 *

    16 */

    17 

    18 

    19 #include "genscanlist.h"

    20 #include "genscanlistiterator.h"

    21 

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

    23 

    24 // ---------------------------------------------------------------------------

    25 // ---------------------------------------------------------------------------

    26 //

    27 ScanListIterator::ScanListIterator(

    28     const ScanList& scan_list ) :

    29     current_m( &scan_list.data_m[0] ),

    30     scan_list_m( scan_list )

    31     {

    32     }

    33 

    34 // ---------------------------------------------------------------------------

    35 // ---------------------------------------------------------------------------

    36 //

    37 const ScanFrame* ScanListIterator::First()

    38     {

    39     if ( !scan_list_m.size_m )

    40         {

    41         return NULL;

    42         }

    43 

    44     /**

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

    46      */

    47     current_m = &scan_list_m.data_m[0];

    48     return current_m;

    49     }

    50 

    51 // ---------------------------------------------------------------------------

    52 // ---------------------------------------------------------------------------

    53 //

    54 const ScanFrame* ScanListIterator::Next()

    55     {

    56     if ( !scan_list_m.size_m )

    57         {

    58         return NULL;

    59         }

    60     

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

    62     return Current();

    63     }

    64 

    65 // ---------------------------------------------------------------------------

    66 // ---------------------------------------------------------------------------

    67 //

    68 const ScanFrame* ScanListIterator::Current() const

    69     {

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

    71         {

    72         return NULL;

    73         }

    74 

    75     return current_m;

    76     }

    77 

    78 // ---------------------------------------------------------------------------

    79 // ---------------------------------------------------------------------------

    80 //

    81 bool_t ScanListIterator::IsDone() const

    82     {

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

    84     }