taskswitcher/contextengine/tsfswserver/engine/src/tsfswiconcache.cpp
changeset 4 4d54b72983ae
child 34 d05a55b217df
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3:fb3763350a08 4:4d54b72983ae
       
     1 /*
       
     2 * Copyright (c) 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:  Icon cache
       
    15  *
       
    16 */
       
    17 
       
    18 
       
    19 #include "tsfswiconcache.h"
       
    20 #include <fbs.h>
       
    21 #include <AknsUtils.h>
       
    22 #include <gulicon.h>
       
    23 #include <avkon.mbg>
       
    24 
       
    25 // size for the created app icons
       
    26 const TInt KAppIconWidth = 96;
       
    27 const TInt KAppIconHeight = 96;
       
    28 
       
    29 // --------------------------------------------------------------------------
       
    30 // CTsFswIconCache::NewL
       
    31 // --------------------------------------------------------------------------
       
    32 //
       
    33 CTsFswIconCache* CTsFswIconCache::NewL()
       
    34     {
       
    35     CTsFswIconCache* self = new (ELeave) CTsFswIconCache;
       
    36     CleanupStack::PushL (self );
       
    37     self->ConstructL ( );
       
    38     CleanupStack::Pop ( self );
       
    39     return self;
       
    40     }
       
    41 
       
    42 // --------------------------------------------------------------------------
       
    43 // CTsFswIconCache::CTsFswIconCache
       
    44 // --------------------------------------------------------------------------
       
    45 //
       
    46 CTsFswIconCache::CTsFswIconCache()
       
    47     {
       
    48     }
       
    49 
       
    50 // --------------------------------------------------------------------------
       
    51 // CTsFswIconCache::~CTsFswIconCache
       
    52 // --------------------------------------------------------------------------
       
    53 //
       
    54 CTsFswIconCache::~CTsFswIconCache( )
       
    55     {
       
    56     THashMapIter<TInt, STsBitmapPair> iter( iAppIcons );
       
    57     while ( const TInt* key = iter.NextKey() )
       
    58         {
       
    59         STsBitmapPair* value = iter.CurrentValue();
       
    60         delete value->iBitmap;
       
    61         delete value->iMask;
       
    62         }
       
    63     iAppIcons.Close();
       
    64     delete iDefaultIcon;
       
    65     }
       
    66 
       
    67 // --------------------------------------------------------------------------
       
    68 // CTsFswIconCache::ConstructL
       
    69 // --------------------------------------------------------------------------
       
    70 //
       
    71 void CTsFswIconCache::ConstructL()
       
    72     {
       
    73     iDefaultIcon = AknsUtils::CreateGulIconL( 
       
    74         AknsUtils::SkinInstance(),
       
    75         KAknsIIDQgnMenuUnknownCxt,
       
    76         AknIconUtils::AvkonIconFileName(),
       
    77         EMbmAvkonQgn_menu_unknown_cxt,
       
    78         EMbmAvkonQgn_menu_unknown_cxt_mask );
       
    79     TSize sz( KAppIconWidth, KAppIconHeight );
       
    80     AknIconUtils::SetSize( iDefaultIcon->Bitmap(), sz );
       
    81     AknIconUtils::SetSize( iDefaultIcon->Mask(), sz );
       
    82     }
       
    83 
       
    84 // --------------------------------------------------------------------------
       
    85 // CTsFswIconCache::GetAppIconL
       
    86 // --------------------------------------------------------------------------
       
    87 //
       
    88 void CTsFswIconCache::GetAppIconL( const TUid& aAppUid,
       
    89         CFbsBitmap*& aBitmap, CFbsBitmap*& aMask )
       
    90     {
       
    91     aBitmap = aMask = 0;
       
    92     MAknsSkinInstance* skinInstance = AknsUtils::SkinInstance();
       
    93     if ( skinInstance )
       
    94         {
       
    95         AknsUtils::CreateAppIconLC( skinInstance, aAppUid, EAknsAppIconTypeList,
       
    96             aBitmap, aMask );
       
    97         // The CreateAppIconLC method leaves both the bitmaps in the cleanup stack.
       
    98         // The order in which they are pushed into the stack and types of 
       
    99         // the items in the stack are both undefined.
       
   100         CleanupStack::Pop( 2 ); // codescanner::cleanup
       
   101         TSize sz( KAppIconWidth, KAppIconHeight );
       
   102         AknIconUtils::SetSize( aBitmap, sz );
       
   103         AknIconUtils::SetSize( aMask, sz );
       
   104         }
       
   105     }
       
   106 
       
   107 // --------------------------------------------------------------------------
       
   108 // CTsFswIconCache::GetIconL
       
   109 // --------------------------------------------------------------------------
       
   110 //
       
   111 void CTsFswIconCache::GetIconL( const TUid& aAppUid,
       
   112         CFbsBitmap*& aBitmap, CFbsBitmap*& aMask )
       
   113     {
       
   114     aBitmap = aMask = 0;
       
   115     STsBitmapPair* bp = iAppIcons.Find( aAppUid.iUid );
       
   116     if ( bp )
       
   117         {
       
   118         // ownership stays with the hash table
       
   119         aBitmap = bp->iBitmap;
       
   120         aMask = bp->iMask;
       
   121         }
       
   122     else
       
   123         {
       
   124         GetAppIconL( aAppUid, aBitmap, aMask ); // ownership of the bitmap is ours
       
   125         // insert to hash table and pass ownership
       
   126         iAppIcons.InsertL( aAppUid.iUid, STsBitmapPair( aBitmap, aMask ) );
       
   127         }
       
   128     }
       
   129 
       
   130 // --------------------------------------------------------------------------
       
   131 // CTsFswIconCache::DefaultIcon
       
   132 // --------------------------------------------------------------------------
       
   133 //
       
   134 void CTsFswIconCache::DefaultIcon( CFbsBitmap*& aBitmap, CFbsBitmap*& aMask )
       
   135     {
       
   136     aBitmap = iDefaultIcon->Bitmap();
       
   137     aMask = iDefaultIcon->Mask();
       
   138     }
       
   139 
       
   140 
       
   141 // end of file