landmarks/locationlandmarks/localaccess/src/EPos_CPosLmLocalIterator.cpp
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     1 /*
       
     2 * Copyright (c) 2002-2005 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 "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: Local iterator base class.
       
    15 *
       
    16 *
       
    17 */
       
    18 
       
    19 
       
    20 #include    <EPos_LandmarksErrors.h>
       
    21 #include    "EPos_CPosLmLocalIterator.h"
       
    22 
       
    23 // ============================ MEMBER FUNCTIONS ===============================
       
    24 
       
    25 // -----------------------------------------------------------------------------
       
    26 // -----------------------------------------------------------------------------
       
    27 //
       
    28 CPosLmLocalIterator::CPosLmLocalIterator() :
       
    29     CPosLmItemIterator()
       
    30     {
       
    31     }
       
    32 
       
    33 // -----------------------------------------------------------------------------
       
    34 // -----------------------------------------------------------------------------
       
    35 //
       
    36 CPosLmLocalIterator::~CPosLmLocalIterator()
       
    37     {
       
    38     iIdArray.Close();
       
    39     }
       
    40 
       
    41 // -----------------------------------------------------------------------------
       
    42 // -----------------------------------------------------------------------------
       
    43 //
       
    44 TPosLmItemId CPosLmLocalIterator::NextL()
       
    45     {
       
    46     if (iCurrent >= iIdArray.Count())
       
    47         {
       
    48         return KPosLmNullItemId;
       
    49         }
       
    50 
       
    51     return iIdArray[iCurrent++];
       
    52     }
       
    53 
       
    54 // -----------------------------------------------------------------------------
       
    55 // -----------------------------------------------------------------------------
       
    56 //
       
    57 void CPosLmLocalIterator::Reset()
       
    58     {
       
    59     iCurrent = 0;
       
    60     }
       
    61 
       
    62 // -----------------------------------------------------------------------------
       
    63 // -----------------------------------------------------------------------------
       
    64 //
       
    65 TUint CPosLmLocalIterator::NumOfItemsL()
       
    66     {
       
    67     return iIdArray.Count();
       
    68     }
       
    69 
       
    70 // -----------------------------------------------------------------------------
       
    71 // -----------------------------------------------------------------------------
       
    72 //
       
    73 void CPosLmLocalIterator::GetItemIdsL(
       
    74     RArray<TPosLmItemId>& aIdArray,
       
    75     TInt aStartIndex,
       
    76     TInt aNumOfItems)
       
    77     {
       
    78     if (aStartIndex < 0 || aStartIndex >= iIdArray.Count() ||
       
    79         aStartIndex + aNumOfItems > iIdArray.Count())
       
    80         {
       
    81         Panic(KPosLandmarksClientPanic,
       
    82             EPosSpecifiedIntervalLiesOutsideIteratedSet);
       
    83         }
       
    84 
       
    85     aIdArray.Reset();
       
    86     aIdArray.ReserveL( aNumOfItems ); // to avoid heap fragmentation
       
    87     for (TInt i = aStartIndex; i < aStartIndex + aNumOfItems; i++)
       
    88         {
       
    89         aIdArray.Append( iIdArray[i] );
       
    90         }
       
    91     }
       
    92