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

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #if !defined(__OFFSCREENBITMAP_H__)

    17 #define __OFFSCREENBITMAP_H__

    18 

    19 #include <e32std.h>

    20 #include <e32base.h>

    21 #include <gdi.h>

    22 

    23 #include <Graphics/WSGRAPHICDRAWERINTERFACE.H>

    24 

    25 class CFbsBitmapDevice;

    26 class CWsClientWindow;

    27 class CWsWindow;

    28 class CWsWindowBase;

    29 class CWsClient;

    30 class CScreen;

    31 class DWsBitmap;

    32 

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

    34 class CDebugOsbWin;

    35 #endif

    36 

    37 class CWsOffScreenBitmap : public CBase, public MWsBackBuffer

    38 	{

    39 public: // Construction / Destruction

    40 	static CWsOffScreenBitmap* NewL(CScreen* aScreen);

    41 	~CWsOffScreenBitmap();

    42 protected:

    43 	CWsOffScreenBitmap(CScreen* aScreen);

    44 	void ConstructL();

    45 public: // Bitmap

    46 	TInt DisplayModeChanged(TBool aSwapWidthAndHeight);

    47 	void UpdateGc(const TBool aSwapWidthAndHeight);

    48 public:

    49 	CFbsBitmap* Bitmap();

    50 	CFbsDevice* BitmapDevice();

    51 	

    52 public: // implementing MWsObjectProvider

    53 	TAny* ResolveObjectInterface(TUint aTypeId);

    54 	

    55 public: // implementing MWsBackBuffer

    56 	CFbsBitmap* GetBitmap();

    57 	CFbsBitGc* GetBitGc();

    58 	CFbsBitGc* GetBitGcCurrent();

    59 	TInt SetBitGc(CFbsBitGc* aBitGc);

    60 	TInt RedirectTo(MWsBackBuffer* aTarget);

    61 	void SetObserver(MWsFlickerFreeBufferObserver* aObserver);

    62 	MWsFlickerFreeBufferObserver* Observer();

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

    64 	void Update();

    65 #endif	

    66 

    67 protected:	// Data

    68 	CFbsBitGc* iBitmapGc;

    69 	CFbsBitmap* iBitmap;

    70 	CFbsBitmapDevice* iBitmapDevice;

    71 	CScreen* iScreen;

    72 	

    73 private:	// Data

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

    75 	CDebugOsbWin* iOsbWin;

    76 #endif

    77 

    78 private:	// Data

    79 	// used by MWsBackBuffer to redirect OSB output

    80 	CFbsBitGc* iRedirectGc;

    81 	MWsBackBuffer* iRedirectBuffer;

    82 	MWsFlickerFreeBufferObserver* iObserver;

    83 	};

    84 

    85 #endif // __OFFSCREENBITMAP__