skins/AknSkins/src/AknsASICacheEntry.cpp
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     1 /*
       
     2 * Copyright (c) 2002-2008 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:  Defines an internal class CAknsAppSkinInstanceCacheEntry which
       
    15 *                encapsulates a single skin instance cache entry.
       
    16 *
       
    17 */
       
    18 
       
    19 
       
    20 // INCLUDE FILES
       
    21 #include "AknsASICacheEntry.h"
       
    22 
       
    23 #include "AknsDebug.h"
       
    24 
       
    25 // ============================ MEMBER FUNCTIONS ===============================
       
    26 
       
    27 // -----------------------------------------------------------------------------
       
    28 // C++ constructor can NOT contain any code, that
       
    29 // might leave.
       
    30 // -----------------------------------------------------------------------------
       
    31 //
       
    32 CAknsAppSkinInstanceCacheEntry::CAknsAppSkinInstanceCacheEntry(
       
    33     const TAknsItemID& aID, CAknsItemData* aData )
       
    34     // Explicit initialization required here!
       
    35     : iID( aID ), iRefCount(0), iData( aData )
       
    36     {
       
    37     }
       
    38 
       
    39 // -----------------------------------------------------------------------------
       
    40 // Two-phased constructor.
       
    41 // -----------------------------------------------------------------------------
       
    42 //
       
    43 CAknsAppSkinInstanceCacheEntry* CAknsAppSkinInstanceCacheEntry::NewL(
       
    44     const TAknsItemID& aID, CAknsItemData* aData )
       
    45     {
       
    46     return new (ELeave) CAknsAppSkinInstanceCacheEntry( aID, aData );
       
    47     }
       
    48 //lint -esym(1714,CAknsAppSkinInstanceCacheEntry::NewL) Defined for completeness
       
    49 
       
    50 // -----------------------------------------------------------------------------
       
    51 // Destructor
       
    52 // -----------------------------------------------------------------------------
       
    53 //
       
    54 CAknsAppSkinInstanceCacheEntry::~CAknsAppSkinInstanceCacheEntry()
       
    55     {
       
    56     delete iData;
       
    57     }
       
    58 
       
    59 // -----------------------------------------------------------------------------
       
    60 // CAknsAppSkinInstanceCacheEntry::IncreaseRefCount()
       
    61 // -----------------------------------------------------------------------------
       
    62 //
       
    63 void CAknsAppSkinInstanceCacheEntry::IncreaseRefCount()
       
    64     {
       
    65     iRefCount++;
       
    66     }
       
    67 
       
    68 // -----------------------------------------------------------------------------
       
    69 // CAknsAppSkinInstanceCacheEntry::DecreaseRefCount()
       
    70 // -----------------------------------------------------------------------------
       
    71 //
       
    72 void CAknsAppSkinInstanceCacheEntry::DecreaseRefCount()
       
    73     {
       
    74     __ASSERT_DEBUG(iRefCount>0,AKNS_DEBUG_PANIC(EAknsDPanicInvalidRefCount));
       
    75     iRefCount--;
       
    76     }
       
    77 
       
    78 // -----------------------------------------------------------------------------
       
    79 // CAknsAppSkinInstanceCacheEntry::IsReferenced()
       
    80 // -----------------------------------------------------------------------------
       
    81 //
       
    82 TBool CAknsAppSkinInstanceCacheEntry::IsReferenced() const
       
    83     {
       
    84     return (iRefCount > 0);
       
    85     }
       
    86 
       
    87 // -----------------------------------------------------------------------------
       
    88 // CAknsAppSkinInstanceCacheEntry::LinearOrder()
       
    89 // -----------------------------------------------------------------------------
       
    90 //
       
    91 TInt CAknsAppSkinInstanceCacheEntry::LinearOrder(
       
    92     const CAknsAppSkinInstanceCacheEntry& aFirst,
       
    93     const CAknsAppSkinInstanceCacheEntry& aSecond )
       
    94     {
       
    95     return TAknsItemID::LinearOrder( aFirst.iID, aSecond.iID );
       
    96     }
       
    97 
       
    98 //  End of File