1 // Copyright (c) 2006-2009 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 // CPlaybackGc and associated classes definitions

    15 // 

    16 //

    17 

    18 #ifndef __PLAYBACKGC_H__

    19 #define __PLAYBACKGC_H__

    20 

    21 #include "wnredraw.h"

    22 #include "cliwin.h"

    23 

    24 class CWsFbsFont;

    25 

    26 class CPlaybackGc : public CBase, public MWsGc

    27 	{

    28 public:

    29 	static void InitStaticsL();

    30 	static void DeleteStatics();

    31 	static CPlaybackGc * Instance() { return iSelf; }

    32 public:

    33 	void ConstructL();

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

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

    36 	void Deactivate();

    37 	inline CFbsBitGc *Gdi() const;

    38 	void SetOrigin(const TPoint &aOrigin);

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

    40 	void InternalizeClippingRegionL(RReadStream& aReadStream);

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

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

    43 	// implementing MWsGc

    44 	MWsClient& Client();

    45 	MWsScreen& Screen();

    46 	TPoint GcOrigin() const;

    47 	const TRegion& ClippingRegion();

    48 	CFbsBitGc& BitGc();

    49 	TInt PushBitGcSettings();

    50 	void PopBitGcSettings();	

    51 	const TTime& Now() const;

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

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

    54 	void SetGcOrigin(const TPoint& aOrigin);

    55 	void SetTargetRegion(const TRegion* aRegion);

    56 	void Reset();

    57 public: // from MWsObjectProvider

    58 	TAny * ResolveObjectInterface(TUint aId);

    59 private:

    60 	CPlaybackGc();

    61 	~CPlaybackGc();

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

    63 	void CancelUserClippingRegion();

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

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

    66 	void SetClippingRect(const TRect &aRect);

    67 	const RWsRegion& Region();

    68 	void DoDrawPolygon(const TWsGcCmdDrawPolygon *aDrawPolygon);

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

    70 	void GcOwnerPanic(TClientPanic aPanic);

    71 	void ResetClippingRect();

    72 	void EndSegmentedPolygon();

    73 	void StartSegmentedDrawPolygonL(const TWsGcCmdStartSegmentedDrawPolygon *aDrawPolygon);

    74 	void SegmentedDrawPolygonData(const TWsGcCmdSegmentedDrawPolygonData *aDrawPolygon);

    75 	void UpdateJustification(TText* aText,TInt aLen, const TDesC8& aCmdData);

    76 	void InternalizeAlphaValueL(RReadStream& aReadStream);

    77 

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

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

    80 // Data

    81 private:

    82 	static CPlaybackGc * iSelf;

    83 	CWsClientWindow *iWin;

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

    85 	CFbsBitGc * iGc;

    86 	CWsFbsFont * iFont;

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

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

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

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

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

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

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

    94 	TPoint *iPolyPoints;

    95 	TInt iPolyPointListSize;

    96 	CFbsBitmap *iScratchBitmap;

    97 	CFbsBitmap *iScratchMaskBitmap;

    98 	// members used for keeping state when drawing CWsGraphicDrawers

    99 	CBufBase* iGcBuf;

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

   101 	};

   102 

   103 #endif // __PLAYBACKGC_H__