/*

* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  This class represents the Widget Renderer object

*

*/

#ifndef __WIDGETENGINERENDERER

#define __WIDGETENGINERENDERER

//  INCLUDES

#include <e32base.h>

#include "WidgetEngineCallbacks.h"

// CONSTANTS

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATION

// CLASS DECLARATION

/**

*  WidgetRenderer

*

*  @lib widgetengine.dll

*  @since 3.1

*/

class WidgetRenderer

{

public:

    WidgetRenderer(MWidgetEngineCallbacks& aWidgetEngineCallback);

    ~WidgetRenderer();

public:

    void prepareForTransitionL(const TDesC& aTransition);

    void performTransitionL();

public:

    void transitionCb();

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

    void preparetodrawTransition();    

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

protected:

    void createTransitionBitmapL();

    void destroyTransitionBitmap();

    void createFadeMaskL();

    void destroyFadeMask();

    void drawFadeMaskL();

private:      

    CFbsBitmap*     m_transitionbitmap;

    CFbsBitmap*     m_fademask;

    CPeriodic*      m_transitiontimer; 

    TUint8          m_transitioncount;

    TUint8          m_maxtransitions;

    MWidgetEngineCallbacks* m_widgetenginecallback;

};

#endif