1 /*

     2 * Copyright (c) 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 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: 

    15 *

    16 */

    17 

    18 

    19 

    20 // INCLUDE FILES

    21 

    22 #include "BrowserFaviconScaler.h"

    23 

    24 #include <fbs.h>

    25 #include <BitmapTransforms.h>

    26 

    27 // EXTERNAL DATA STRUCTURES

    28 

    29 // EXTERNAL FUNCTION PROTOTYPES

    30 

    31 // CONSTANTS

    32 

    33 // MACROS

    34 

    35 // LOCAL CONSTANTS AND MACROS

    36 

    37 // MODULE DATA STRUCTURES

    38 

    39 // LOCAL FUNCTION PROTOTYPES

    40 

    41 // FORWARD DECLARATIONS

    42 

    43 // ============================= LOCAL FUNCTIONS ===============================

    44 

    45 

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

    47 

    48 // -----------------------------------------------------------------------------

    49 // CBrowserFaviconScaler::CBrowserFaviconScaler

    50 // C++ default constructor can NOT contain any code, that

    51 // might leave.

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

    53 //

    54 CBrowserFaviconScaler::CBrowserFaviconScaler(MBrowserFaviconScalerCallback& aCallback)

    55     : CActive(CActive::EPriorityIdle-1), iCallback(&aCallback)

    56     {

    57     CActiveScheduler::Add(this);

    58     }

    59 

    60 // -----------------------------------------------------------------------------

    61 // CBrowserFaviconScaler::ConstructL

    62 // Symbian 2nd phase constructor can leave.

    63 // -----------------------------------------------------------------------------

    64 //

    65 void CBrowserFaviconScaler::ConstructL()

    66     {

    67     iScaler = CBitmapScaler::NewL();

    68     }

    69 

    70 // -----------------------------------------------------------------------------

    71 // CBrowserFaviconScaler::NewL

    72 // Two-phased constructor.

    73 // -----------------------------------------------------------------------------

    74 //

    75 CBrowserFaviconScaler* CBrowserFaviconScaler::NewL(MBrowserFaviconScalerCallback& aCallback)

    76     {

    77     CBrowserFaviconScaler* self = new( ELeave ) CBrowserFaviconScaler(aCallback);

    78 

    79     CleanupStack::PushL( self );

    80     self->ConstructL();

    81     CleanupStack::Pop();

    82 

    83     return self;

    84     }

    85 

    86 

    87 // Destructor

    88 CBrowserFaviconScaler::~CBrowserFaviconScaler()

    89     {

    90     Cancel();

    91     delete iScaler;

    92     //delete iResultBitmap;

    93     }

    94 

    95 

    96 // -----------------------------------------------------------------------------

    97 // CBrowserFaviconScaler::StartScalingL

    98 //

    99 //

   100 // -----------------------------------------------------------------------------

   101 //

   102 void CBrowserFaviconScaler::StartScalingL(CFbsBitmap& aSource, const TRect& aTargetRect, TBool aIsMask)

   103     {

   104     // cancel outstanding request

   105     Cancel();

   106 

   107     // create target bitmap

   108     iResultBitmap = new (ELeave) CFbsBitmap();

   109     TDisplayMode dispMode = (aIsMask) ? EGray256 : aSource.DisplayMode();

   110     User::LeaveIfError(iResultBitmap->Create(aTargetRect.Size(), dispMode));

   111     

   112     // start scaling, async

   113     iTargetRect = aTargetRect;

   114     iScaler->Scale(&iStatus, aSource, *iResultBitmap, EFalse);

   115 

   116     SetActive();

   117     }

   118 

   119 // -----------------------------------------------------------------------------

   120 // CPageOverview::DeleteResultBitmap

   121 //

   122 //

   123 // -----------------------------------------------------------------------------

   124 //

   125 void CBrowserFaviconScaler::DeleteResultBitmap()

   126     {

   127     delete iResultBitmap;

   128     iResultBitmap = 0;

   129     }

   130 

   131 

   132 // -----------------------------------------------------------------------------

   133 // CPageOverview::DoCancel

   134 //

   135 //

   136 // -----------------------------------------------------------------------------

   137 //

   138 void CBrowserFaviconScaler::DoCancel()

   139     {

   140     iScaler->Cancel();

   141     DeleteResultBitmap();

   142     }

   143 

   144 

   145 // -----------------------------------------------------------------------------

   146 // CPageOverview::RunL

   147 //

   148 //

   149 // -----------------------------------------------------------------------------

   150 //

   151 void CBrowserFaviconScaler::RunL()

   152     {

   153     iCallback->ScalingCompletedL(iResultBitmap, iTargetRect);

   154     // if the callback called StartScalingL(), we must not delete the bitmap

   155     if (!IsActive())

   156         {

   157         //DeleteResultBitmap();

   158         }

   159     }

   160 

   161 

   162 // ========================== OTHER EXPORTED FUNCTIONS =========================

   163 

   164 

   165 //  End of File