1 /*

     2 * Copyright (c) 2006 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:  This class represents the Widget Renderer object

    15 *

    16 */

    17 

    18 #ifndef __WIDGETENGINERENDERER

    19 #define __WIDGETENGINERENDERER

    20 

    21 //  INCLUDES

    22 #include <e32base.h>

    23 #include "WidgetEngineCallbacks.h"

    24 

    25 // CONSTANTS

    26 

    27 // MACROS

    28 

    29 // DATA TYPES

    30 

    31 // FUNCTION PROTOTYPES

    32 

    33 // FORWARD DECLARATION

    34 

    35 // CLASS DECLARATION

    36 

    37 /**

    38 *  WidgetRenderer

    39 *

    40 *  @lib widgetengine.dll

    41 *  @since 3.1

    42 */

    43 class WidgetRenderer

    44 {

    45 

    46 public:

    47     WidgetRenderer(MWidgetEngineCallbacks& aWidgetEngineCallback);

    48     ~WidgetRenderer();

    49 

    50 public:

    51     void prepareForTransitionL(const TDesC& aTransition);

    52     void performTransitionL();

    53 

    54 public:

    55     void transitionCb();

    56     TBool transitionInProgress() { return m_transitionbitmap!=0; }

    57     void preparetodrawTransition();    

    58     void drawTransition(CWindowGc& gc, CFbsBitmap* aCurrentBitmap);

    59     

    60 protected:

    61     void createTransitionBitmapL();

    62     void destroyTransitionBitmap();

    63     void createFadeMaskL();

    64     void destroyFadeMask();

    65     void drawFadeMaskL();

    66 

    67 private:      

    68     CFbsBitmap*     m_transitionbitmap;

    69     CFbsBitmap*     m_fademask;

    70     CPeriodic*      m_transitiontimer; 

    71     TUint8          m_transitioncount;

    72     TUint8          m_maxtransitions;

    73     MWidgetEngineCallbacks* m_widgetenginecallback;

    74 

    75 };

    76 

    77 #endif