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:  Class for providing effect context for effect plugins.

    15 *

    16 */

    17 

    18 

    19 #ifndef AKNSALEFFECTCONTEXT_H

    20 #define AKNSALEFFECTCONTEXT_H

    21 

    22 // INCLUDES

    23 #include <AknsRlEffectContext.h>

    24 

    25 // CONSTANTS

    26 const TInt KAknsAlEffectContextLayerN = 5;

    27 

    28 // CLASS DECLARATION

    29 /**

    30 * Internal class for providing effect context for effect plugins used in

    31 * animations. This class is used by AnimatorBmp for managing input/output

    32 * layers during the lifetime of the animator.

    33 *

    34 * @since 3.0

    35 */

    36 NONSHARABLE_CLASS( CAknsAlEffectContext ):

    37     public CBase, public MAknsRlEffectContext

    38     {

    39     protected: // Protected constructors

    40         CAknsAlEffectContext();

    41 

    42     public: // New methods

    43 

    44         static CAknsAlEffectContext* NewL();

    45 

    46         ~CAknsAlEffectContext();

    47 

    48         void ConfigureL( const TSize& aSize,

    49                          TDisplayMode aRgbMode,

    50                          TInt aInputLayerIndex,

    51                          TInt aInputLayerMode );

    52 

    53         /// @return May return NULL if the bitmap does not exist.

    54         CFbsBitmap* RgbBitmap( TInt aLayerIndex ) const;

    55         /// @return May return NULL if the bitmap does not exist.

    56         CFbsBitmap* AlphaBitmap( TInt aLayerIndex ) const;

    57 

    58         CFbsBitGc* RgbGc( TInt aIndex ) const;

    59         CFbsBitGc* AlphaGc( TInt aIndex ) const;

    60 

    61         /**

    62         * Releases all layers but the output layer.

    63         */

    64         void ReleaseInputLayers( TInt aOutputLayerIndex );

    65 

    66         void SetSkinSrvSession( RAknsSrvSession* aSession );

    67 

    68     public: // From MAknsRlEffectContext

    69         const TSize LayerSize();

    70         void GetLayerDataL( TAknsRlLayerData& aData, const TInt aLayerIndex,

    71                             const TInt aLayerStatus, const TBool aInitialize );

    72         RAknsSrvSession* GetSkinSrvSession();

    73 

    74     private: // New methods

    75 

    76         void CreateIfNeededL( TInt aLayerIndex, const TInt aLayerStatus,

    77                               TBool aInitialize );

    78         void ReleaseLayers();

    79         void ReleaseLayer( TInt aLayerIndex );

    80 

    81     private:

    82         RAknsSrvSession* iSession; // Referenced only

    83         TSize iLayerSize;

    84         TDisplayMode iRgbMode;

    85         TAknsRlLayerData iLayers[KAknsAlEffectContextLayerN];

    86     };

    87 

    88 #endif // AKNSALEFFECTCONTEXT_H

    89 

    90 // End of File