// Copyright (c) 2006-2009 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:

 // CPlaybackGc and associated classes definitions

 // 

 //

 #ifndef __PLAYBACKGC_H__

 #define __PLAYBACKGC_H__

 #include "wnredraw.h"

 #include "cliwin.h"

 class CWsFbsFont;

 class MWsGraphicsContext;

 class CPlaybackGc : public CBase, public MWsGc, public MWsSurfacePlacement

 	{

 public:

 	static void InitStaticsL();

 	static void DeleteStatics();

 	static CPlaybackGc * Instance() { return iSelf; }

 public:

 	void ConstructL();

 	void Activate(CWsClientWindow * aWin, MWsGraphicsContext * aGc, const TRegion * aRegion);

 	void CommandL(TWsGcOpcodes aOpcode, const TDesC8& aCmdData);

 	void Deactivate();

 	inline CFbsBitGc *Gdi() const;

 	void BitGcChanged(CFbsBitGc *aGc);

 	void Resized();

 	void SetOrigin(const TPoint &aOrigin);

 	void InternalizeL(const CBufBase& aBuffer,TInt& aStartPos);

 	void InternalizeClippingRegionL(RReadStream& aReadStream);

 	TInt FbsBitmapHandle(TInt aOpcode, const TWsGcCmdUnion &pData, TInt& aMaskHandle);

 	TInt WsBitmapHandle(TInt aOpcode, const TWsGcCmdUnion &pData, TInt& aMaskHandle);

 	// implementing MWsGc

 	MWsClient& Client();

 	MWsScreen& Screen();

 	const TTime& Now() const;

 	void ScheduleAnimation(const TRect& aRect,const TTimeIntervalMicroSeconds& aFromNow);

 	void ScheduleAnimation(const TRect& aRect,const TTimeIntervalMicroSeconds& aFromNow,const TTimeIntervalMicroSeconds& aFreq,const TTimeIntervalMicroSeconds& aStop);

 	void SetGcOrigin(const TPoint& aOrigin);

 	void SetTargetRegion(const TRegion* aRegion);

 	void Reset();

 	TInt	GcDrawingCount();

 public: // implementing MWsObjectProvider

 	TAny * ResolveObjectInterface(TUint aId);

   /** 

   * @deprecated

   */

 	TInt   PlaceSurface(const TSurfaceConfiguration& aConfig); 

 private:

 	CPlaybackGc();

 	~CPlaybackGc();

 	void DoDrawing(TWsGcOpcodes aOpcode, const TDesC8& aCmdData);

 	void CancelUserClippingRegion();

 	void SetFadingParams(CWsClientWindow* aWin);

 	void RemoteReadDataAndDrawL(const CWsGraphicDrawer* aGraphic, CWsClient* aOwner, const TWsGcCmdUnion &aData);

 	void DoDrawCommand(TWsGcOpcodes aOpcode, const TDesC8& aCmdData, const TRegion *aRegion);

 	void SetClippingRect(const TRect &aRect);

 	void DoDrawPolygon(const TWsGcCmdDrawPolygon *aDrawPolygon);

 	void DoDrawPolyLine(const TWsGcCmdDrawPolyLine *aDrawPolyLine, TBool aContinued);

 	void sendGdiMessage(TInt opcode,TAny *params);

 	void GcOwnerPanic(TClientPanic aPanic);

 	void ResetClippingRect();

 	void EndSegmentedPolygon();

 	void StartSegmentedDrawPolygonL(const TWsGcCmdStartSegmentedDrawPolygon *aDrawPolygon);

 	void SegmentedDrawPolygonData(const TWsGcCmdSegmentedDrawPolygonData *aDrawPolygon);

 	void UpdateJustification(TText* aText, TInt aLen, const TDesC8& aCmdData, CGraphicsContext::TTextParameters* aParam);

 #if defined(_DEBUG)

 	inline TBool IsPolyPointData() {return(iPolyPointListSize>0 || iPolyPoints!=NULL);}

 #endif

 	void InternalizeAlphaValueL(RReadStream& aReadStream);

 	void ChangeDevice();

 	void CheckPolyData(const TAny* aDataPtr, TInt aHeaderSize, TInt aNumPoints);

 	TPtrC BufferTPtr(TText* aStart, TInt aLen, const TDesC8& aCmdData);

 	void	GcDrawingDone();

 	void DoDrawResource(TWsGcOpcodes aOpcode, const TWsGcCmdUnion &aData);

 	void SendOriginIfRequired();

 	void SendClippingRegionIfRequired(const TRegion* aRegion);

 // Data

 private:

 	static CPlaybackGc * iSelf;

 	CWsClientWindow *iWin;

 	TPoint iMasterOrigin;     // Origin available to wserv.  Usually the window origin.

 	MWsGraphicsContext * iGc;

 	CWsFbsFont * iFont;

 	const TRegion *iTargetRegion;          //Clipping region set by wserv window management.

 	RWsRegion* iUserDefinedClippingRegion; //Clipping region that is set explicitly by the user.

 	const TRegion *iDrawRegion;            //Pointer to one of the above regions

 	TRect iClippingRect;	// All drawing clipped to this rectangle in addition to other clipping

 	TBool iClippingRectSet;	// ETrue if the iClippingRect is in use

 	RRegion iIntersectedRegion; // iDrawRegion clipped to iClippingRect, or just iDrawRegion if no user clipping rect active

 	TPoint iOrigin;			// User defined origin, relative to the top left of the window

 	TPoint iLinePos;		// Current line position for LineBy, LineTo etc

 	TPoint *iPolyPoints;

 	TInt iPolyPointListSize;

 	// members used for keeping state when drawing CWsGraphicDrawers

 	CBufBase* iGcBuf;

 	const TRegion* iCurrentClippingRegion; // Clipping region while doing DoDrawCommand

 	TInt	iGcDrawingCounter;				// Flags that some drawing has occurred between readings

 	TBool iSendOrigin; // MWsGraphicsContext::SetOrigin must be called at next opportunity

     TPoint iLastSentOrigin; // last origin value sent to render stage

 	};

 #endif // __PLAYBACKGC_H__