1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/graphics/windowing/windowserver/nga/SERVER/gc.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,106 @@
     1.4 +// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// CWsGc and associated classes definitions
    1.18 +// 
    1.19 +//
    1.20 +
    1.21 +#ifndef __GC_H__
    1.22 +#define __GC_H__
    1.23 +
    1.24 +#include "wnredraw.h"
    1.25 +#include "cliwin.h"
    1.26 +#include "graphicscontextstate.h"
    1.27 +
    1.28 +class CWsFbsFont;
    1.29 +
    1.30 +class CWsGc : public CWsObject
    1.31 +	{
    1.32 +	enum {ETextPtrBufLen=0x100};	// Buffer of TText, used on stack
    1.33 +// Functions
    1.34 +public:
    1.35 +	static CWsGc* NewL(CWsClient *aOwner);
    1.36 +	~CWsGc();
    1.37 +	static void InitStaticsL();
    1.38 +	static void DeleteStatics();
    1.39 +	void CommandL(TInt aOpcode, const TAny *aCmdData);
    1.40 +	void Deactivate();
    1.41 +	inline void SetNextWinGc(CWsGc *aGc);
    1.42 +	inline CWsGc *NextWinGc() const;
    1.43 +	TInt ExternalizeL(CBufBase& aBuffer, TInt aStartPos);
    1.44 +	TInt ExternalizeClippingRegionL(RWriteStream& aWriteStreem);
    1.45 +	TInt FbsBitmapHandle(TInt aOpcode, const TWsGcCmdUnion &pData, TInt& aMaskHandle);
    1.46 +	TInt WsBitmapHandle(TInt aOpcode, const TWsGcCmdUnion &pData, TInt& aMaskHandle);
    1.47 +	TInt WsDrawableSourceHandle(TInt aOpcode, const TWsGcCmdUnion &aData);
    1.48 +	void Reactivate();
    1.49 +private:
    1.50 +	CWsGc(CWsClient *aOwner);
    1.51 +	void ConstructL();
    1.52 +	void Activate(CWsClientWindow *win);
    1.53 +	void DoDrawing2(TWsGcOpcodes aOpcode, const TWsGcCmdUnion &pData);
    1.54 +	void SetGcAttribute(TInt aOpcode, TWsGcCmdUnion pData);
    1.55 +	void SetOrigin(const TPoint &aOrigin);
    1.56 +
    1.57 +	void DoDrawing0L(TWsGcOpcodes aOpcode, const TWsGcCmdUnion &pData);
    1.58 +	void DoDrawing1(TWsGcOpcodes aOpcode, const TWsGcCmdUnion &pData);
    1.59 +	void Activate(const TInt &aHandle);
    1.60 +	void DoDrawCommand(TWsGcOpcodes aOpcode, const TWsGcCmdUnion &pData);
    1.61 +	void SetClippingRegionL(TInt aCountRegion);
    1.62 +	void SetClippingRect(const TRect &aRect);
    1.63 +	void CancelClippingRegion();
    1.64 +	void DoDrawPolygon(const TWsGcCmdDrawPolygon *aDrawPolygon);
    1.65 +	void DoDrawPolyLine(const TWsGcCmdDrawPolyLine *aDrawPolyLine, TBool aContinued);
    1.66 +	void GcOwnerPanic(TClientPanic aPanic);
    1.67 +	void ResetClippingRect();
    1.68 +	void EndSegmentedPolygon();
    1.69 +	void StartSegmentedDrawPolygonL(const TWsGcCmdStartSegmentedDrawPolygon* aDrawPolygon);
    1.70 +	void SegmentedDrawPolygonData(const TWsGcCmdSegmentedDrawPolygonData* aDrawPolygon);
    1.71 +	void UpdateJustification(TText* aText,TInt aLen);
    1.72 +	void UpdateJustification(TText* aText,TInt aLen,CGraphicsContext::TTextParameters* aParam);
    1.73 +#if defined(_DEBUG)
    1.74 +	inline TBool IsPolyPointData() {return(iPolyPointListSize>0 || iPolyPoints!=NULL);}
    1.75 +#endif
    1.76 +	void ExternalizeAlphaValueL(RWriteStream& aWriteStream);
    1.77 +	TPtrC BufferTPtr(TText* aStart,TInt aLen);
    1.78 +	void CheckPolyData(const TAny* aDataPtr, TInt aHeaderSize, TInt aNumPoints);
    1.79 +// Data
    1.80 +private:
    1.81 +	CFbsBitGc *iBackedUpWinGc;
    1.82 +	CWsClientWindow *iWin;
    1.83 +	CWsGc *iNextWinGc;
    1.84 +	CWsFbsFont *iFont;
    1.85 +	RWsRegion* iUserDefinedClippingRegion; //Clipping region that is set explicitly by the user.
    1.86 +	TRect iClippingRect;	// All drawing clipped to this rectangle in addition to other clipping
    1.87 +	TBool iClippingRectSet;	// ETrue if the iClippingRect is in use
    1.88 +	TPoint iOrigin;			// User defined origin, relative to the top left of the window
    1.89 +	TPoint iLinePos;		// Current line position for LineBy, LineTo etc
    1.90 +	TPoint *iPolyPoints;
    1.91 +	TInt iPolyPointListSize;
    1.92 +	//member used for storing graphics context data for Internalize/Externalize
    1.93 +	TInternalGcStatus iInternalStatus;
    1.94 +	// static variables
    1.95 +	static CFbsBitmap *iScratchBitmap;
    1.96 +	static CFbsBitmap *iScratchMaskBitmap;
    1.97 +	};
    1.98 +
    1.99 +inline void CWsGc::SetNextWinGc(CWsGc *aGc)
   1.100 +	{
   1.101 +	iNextWinGc=aGc;
   1.102 +	}
   1.103 +
   1.104 +inline CWsGc *CWsGc::NextWinGc() const
   1.105 +	{
   1.106 +	return(iNextWinGc);
   1.107 +	}
   1.108 +
   1.109 +#endif