1 /*

     2 * Copyright (c) 2004-2008 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:  Wrapper class for access to scalable item renderer.

    15 *

    16 */

    17 

    18 

    19 // INCLUDE FILES

    20 #include "AknsCppPreface.h"

    21 

    22 #include <AknsRendererWrapper.h>

    23 

    24 #include "AknsScalabilityUtils.h"

    25 #include "AknsRlRenderer.h"

    26 #include "AknsDebug.h"

    27 

    28 // ============================ MEMBER FUNCTIONS ===============================

    29 

    30 // -----------------------------------------------------------------------------

    31 // AknsRendererWrapper::RenderScalableItemL

    32 // (commented in the header).

    33 // -----------------------------------------------------------------------------

    34 //

    35 EXPORT_C void AknsRendererWrapper::RenderScalableItemL(

    36     MAknsSkinInstance* aSkin, const TAknsItemID& aIID, CFbsBitmap*& aOutRGB,

    37     CFbsBitmap*& aOutAlpha, const TRect& aRect,

    38     const CFbsBitmap* aInRGB, const CFbsBitmap* aInAlpha )

    39     {

    40     if( !aSkin ) User::Leave( KErrArgument );

    41 

    42     CAknsAppSkinInstance* appSkin = static_cast<CAknsAppSkinInstance*>(aSkin);

    43 

    44     TAknsItemID realIID =

    45         AknsScalabilityUtils::ConcreteEffectQueue( appSkin, aIID );

    46     if( realIID == KAknsIIDNone )

    47         {

    48         // No such item

    49         User::Leave( KErrNotFound );

    50         }

    51 

    52     CAknsEffectQueueItemData* queue = static_cast<CAknsEffectQueueItemData*>(

    53         appSkin->GetCachedItemData( realIID, EAknsITEffectQueue ) );

    54     if( !queue )

    55         {

    56         // No such item

    57         User::Leave( KErrNotFound );

    58         }

    59 

    60     MAknsRlRenderer* renderer = appSkin->DefaultRenderer();

    61 

    62     MAknsRlCommandIterator* commands =

    63         queue->CreateCommandIteratorL();

    64     CleanupStack::PushL( TCleanupItem(

    65         MAknsRlCommandIterator::CleanupOperation, commands ) ); // (1)

    66     TInt inputLayer = queue->InputLayer();

    67     TInt outputLayer = queue->OutputLayer();

    68 

    69     // Bitmap and mask being created, no leaves allowed

    70     TInt rendererErr = KErrNone;

    71     CFbsBitmap* bitmap = NULL;

    72     CFbsBitmap* alpha = NULL;

    73     if( aInRGB || aInAlpha )

    74         {

    75         rendererErr = renderer->RenderItemWithBackground(

    76             bitmap, alpha, outputLayer, commands, aRect.Size(),

    77             aInRGB, aInAlpha, aRect, inputLayer );

    78         }

    79     else

    80         {

    81         rendererErr = renderer->RenderItem(

    82             bitmap, alpha, outputLayer, commands, aRect.Size() );

    83         }

    84     if( rendererErr )

    85         {

    86         // Leave is safe (bitmaps not created)

    87         User::Leave( rendererErr );

    88         }

    89     CleanupStack::PopAndDestroy(); // commands (0)

    90 

    91     // Drop alpha, if RGB only

    92     if( queue->OutputLayerMode() == KAknsRlLayerRGBOnly )

    93         {

    94         delete alpha;

    95         alpha = NULL;

    96         }

    97 

    98     // Ownership transfer

    99     aOutRGB = bitmap;

   100     aOutAlpha = alpha;

   101     }

   102 

   103 //  End of File

   104