// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).

 // All rights reserved.

 // This component and the accompanying materials are made available

 // under the terms of "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:

 //

 #if !defined(__OFFSCREENBITMAP_H__)

 #define __OFFSCREENBITMAP_H__

 #include <e32std.h>

 #include <e32base.h>

 #include <gdi.h>

 #include <Graphics/WSGRAPHICDRAWERINTERFACE.H>

 class CFbsBitmapDevice;

 class CWsClientWindow;

 class CWsWindow;

 class CWsWindowBase;

 class CWsClient;

 class CScreen;

 class DWsBitmap;

 #if defined(__WINS__) && defined(_DEBUG)

 class CDebugOsbWin;

 #endif

 class CWsOffScreenBitmap : public CBase, public MWsBackBuffer

 	{

 public: // Construction / Destruction

 	static CWsOffScreenBitmap* NewL(CScreen* aScreen);

 	~CWsOffScreenBitmap();

 protected:

 	CWsOffScreenBitmap(CScreen* aScreen);

 	void ConstructL();

 public: // Bitmap

 	TInt DisplayModeChanged(TBool aSwapWidthAndHeight);

 	void UpdateGc(const TBool aSwapWidthAndHeight);

 public:

 	CFbsBitmap* Bitmap();

 	CFbsDevice* BitmapDevice();

 public: // implementing MWsObjectProvider

 	TAny* ResolveObjectInterface(TUint aTypeId);

 public: // implementing MWsBackBuffer

 	CFbsBitmap* GetBitmap();

 	CFbsBitGc* GetBitGc();

 	CFbsBitGc* GetBitGcCurrent();

 	TInt SetBitGc(CFbsBitGc* aBitGc);

 	TInt RedirectTo(MWsBackBuffer* aTarget);

 	void SetObserver(MWsFlickerFreeBufferObserver* aObserver);

 	MWsFlickerFreeBufferObserver* Observer();

 #if defined(__WINS__) && defined(_DEBUG)

 	void Update();

 #endif	

 protected:	// Data

 	CFbsBitGc* iBitmapGc;

 	CFbsBitmap* iBitmap;

 	CFbsBitmapDevice* iBitmapDevice;

 	CScreen* iScreen;

 private:	// Data

 #if defined(__WINS__) && defined(_DEBUG)

 	CDebugOsbWin* iOsbWin;

 #endif

 private:	// Data

 	// used by MWsBackBuffer to redirect OSB output

 	CFbsBitGc* iRedirectGc;

 	MWsBackBuffer* iRedirectBuffer;

 	MWsFlickerFreeBufferObserver* iObserver;

 	};

 #endif // __OFFSCREENBITMAP__