// 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:

//

#ifndef __REMOTEGC_H__

#define __REMOTEGC_H__

#include <w32std.h>

#include <s32mem.h>

class CCommandBuffer;

class RWsDrawableSource;

/**

MCommandBufferObserver should be implemented by classes that want a notification when the commandbuffer has been updated.

@publishedPartner

@released*/

class MCommandBufferObserver

    {

public:

	/** 

	CommandBufferUpdated is called when the commandbuffer has been updated.

	@param aDrawRect The rect that has been updated.

	@param aBoundingRect The boundingrect of the commands that has been updated.

	*/

	virtual void CommandBufferUpdated(const TRect& aDrawRect, const TRect& aBoundingRect) = 0;

	};

/** 

Intercepts and logs all draw operations to a window-gc 

@publishedPartner

@released*/

NONSHARABLE_CLASS(CRemoteGc): public CWindowGc

	{

public:

	IMPORT_C static CRemoteGc* NewL(CWsScreenDevice* aDevice);

	IMPORT_C ~CRemoteGc();	

	IMPORT_C void SetCommandBufferObserver(MCommandBufferObserver* aCommandBufferObserver);		

	IMPORT_C void ResetCommandBuffer();

	IMPORT_C void ExternalizeL(RWsGraphicMsgBuf& aMsgBuf, TBool aEntireBuffer);

	IMPORT_C void BeginDraw(const TRect& aRect);

	IMPORT_C void EndDraw();

public: // inherited methods		

	// CWindowGc

	void Activate(RDrawableWindow &aDevice);

	void Deactivate();	

	void BitBlt(const TPoint &aPoint, const CWsBitmap *aBitmap);

	void BitBlt(const TPoint &aDestination, const CWsBitmap *aBitmap, const TRect &aSource);

	void BitBltMasked(const TPoint& aPoint, const CWsBitmap *aBitmap, const TRect& aSourceRect, const CWsBitmap *aMaskBitmap, TBool aInvertMask);

	// CBitmapContext

	void Clear();

	void Clear(const TRect &aRect);

	void CopyRect(const TPoint &anOffset, const TRect &aRect);

	void BitBlt(const TPoint &aPoint, const CFbsBitmap *aBitmap);

	void BitBlt(const TPoint &aDestination, const CFbsBitmap *aBitmap, const TRect &aSource);

	void BitBltMasked(const TPoint& aPoint, const CFbsBitmap* aBitmap, const TRect& aSourceRect, const CFbsBitmap* aMaskBitmap, TBool aInvertMask);

	void SetFaded(TBool aFaded);

	void SetFadingParameters(TUint8 aBlackMap,TUint8 aWhiteMap);

	TInt AlphaBlendBitmaps(const TPoint& aDestPt, const CFbsBitmap* aSrcBmp, const TRect& aSrcRect, const CFbsBitmap* aAlphaBmp, const TPoint& aAlphaPt);

	TInt AlphaBlendBitmaps(const TPoint& aDestPt, const CWsBitmap* aSrcBmp, const TRect& aSrcRect, const CWsBitmap* aAlphaBmp, const TPoint& aAlphaPt);	

	// CGraphicsContext

	void SetOrigin(const TPoint &aPoint);

	void SetDrawMode(TDrawMode aDrawingMode);

	void SetClippingRect(const TRect& aRect);

	void CancelClippingRect();

	void Reset();

	void UseFont(const CFont *aFont);

	void DiscardFont();

	void SetUnderlineStyle(TFontUnderline aUnderlineStyle);

	void SetStrikethroughStyle(TFontStrikethrough aStrikethroughStyle);

	void SetWordJustification(TInt aExcessWidth,TInt aNumGaps);

	void SetCharJustification(TInt aExcessWidth,TInt aNumChars);

	void SetPenColor(const TRgb &aColor);

	void SetPenStyle(TPenStyle aPenStyle);

	void SetPenSize(const TSize& aSize);

	void SetBrushColor(const TRgb &aColor);

	void SetBrushStyle(TBrushStyle aBrushStyle);

	void SetBrushOrigin(const TPoint &aOrigin);

	void UseBrushPattern(const CFbsBitmap *aDevice);

	void DiscardBrushPattern();

	void MoveTo(const TPoint &aPoint);

	void MoveBy(const TPoint &aPoint);

	void Plot(const TPoint &aPoint);

	void DrawArc(const TRect &aRect,const TPoint &aStart,const TPoint &aEnd);

	void DrawLine(const TPoint &aPoint1,const TPoint &aPoint2);

	void DrawLineTo(const TPoint &aPoint);

	void DrawLineBy(const TPoint &aPoint);

	void DrawPolyLine(const CArrayFix<TPoint> *aPointList);

	void DrawPolyLine(const TPoint* aPointList, TInt aNumPoints);

	void DrawPie(const TRect &aRect,const TPoint &aStart,const TPoint &aEnd);

	void DrawEllipse(const TRect &aRect);

	void DrawRect(const TRect &aRect);

	void DrawRoundRect(const TRect &aRect,const TSize &aEllipse);

	TInt DrawPolygon(const CArrayFix<TPoint> *aPointList, TFillRule aFillRule);

	TInt DrawPolygon(const TPoint* aPointList,TInt aNumPoints, TFillRule aFillRule);

	void DrawBitmap(const TPoint &aTopLeft, const CFbsBitmap *aDevice);

	void DrawBitmap(const TRect &aDestRect, const CFbsBitmap *aDevice);

	void DrawBitmap(const TRect &aDestRect, const CFbsBitmap *aDevice, const TRect &aSourceRect);

	void DrawBitmapMasked(const TRect& aDestRect, const CFbsBitmap* aBitmap, const TRect& aSourceRect, const CFbsBitmap* aMaskBitmap, TBool aInvertMask);

	void DrawBitmapMasked(const TRect& aDestRect, const CWsBitmap* aBitmap, const TRect& aSourceRect, const CWsBitmap* aMaskBitmap, TBool aInvertMask);

	// Required as not all DrawText and DrawTextVertical functions are implemented in CRemoteGc

	using CWindowGc::DrawText;

	using CWindowGc::DrawTextVertical;

	void DrawText(const TDesC &aBuf,const TPoint &aPos);

	void DrawText(const TDesC &aBuf,const TRect &aBox,TInt aBaselineOffset, TTextAlign aHoriz, TInt aLeftMrg);

	void DrawText(const TDesC& aText,const TPoint& aPosition,const TDrawTextParam& aParam);

	void MapColors(const TRect& aRect,const TRgb* aColors, TInt aNumPairs, TBool aMapForwards);

	TInt SetClippingRegion(const TRegion &aRegion);

	void CancelClippingRegion();	

	void DrawTextVertical(const TDesC& aText,const TPoint& aPos,TBool aUp);

	void DrawTextVertical(const TDesC& aText,const TRect& aBox,TInt aBaselineOffset,TBool aUp,TTextAlign aVert,TInt aMargin);

	void DrawWsGraphic(const TWsGraphicId& aId,const TRect& aDestRect);

	void DrawWsGraphic(const TWsGraphicId& aId,const TRect& aDestRect,const TDesC8& aData);

	void SetDitherOrigin(const TPoint& aPoint);

	void SetOpaque(TBool aDrawOpaque=ETrue);	

protected:	

	TInt APIExtension(TUid aUid, TAny*& aOutput, TAny* aInput);

private:

	CRemoteGc(CWsScreenDevice* aDevice);

	void ConstructL();

	TInt APIExGetUnderlineMetrics(TAny*& aOutput);

	TInt APIExSetShadowColor(TAny* aShadowColor);

	TInt APIExGetShadowColor(TAny*& aOutput);

	// New DrawText API's that take in context

	TInt APIExDrawText(const TDesC &aBuf,const TTextParameters* aParam,const TPoint &aPos);

	TInt APIExDrawText(const TDesC &aBuf,const TTextParameters* aParam,const TRect &aBox,TInt aBaselineOffset,TTextAlign aHoriz=ELeft,TInt aLeftMrg=0);

	TInt APIExDrawTextVertical(const TDesC& aText,const TTextParameters* aParam,const TPoint& aPos,TBool aUp);

	TInt APIExDrawTextVertical(const TDesC& aText,const TTextParameters* aParam,const TRect& aBox,TInt aBaselineOffset,TBool aUp,TTextAlign aVert=ELeft,TInt aMargin=0);

	TInt APIExInterface(TAny*& aInterface, TUid aInterfaceId);

	void DrawResource(const TPoint& aPos, const RWsDrawableSource& aSource, CWindowGc::TGraphicsRotation aRotation=CWindowGc::EGraphicsRotationNone);

	void DrawResource(const TRect& aDestRect, const RWsDrawableSource& aSource, CWindowGc::TGraphicsRotation aRotation=CWindowGc::EGraphicsRotationNone);

	void DrawResource(const TRect& aDestRect, const RWsDrawableSource& aSource, const TRect& aSrcRect, CWindowGc::TGraphicsRotation aRotation=CWindowGc::EGraphicsRotationNone);

	void DrawResource(const TRect& aDestRect, const RWsDrawableSource& aSource, const TDesC8& aParam);

private:

	TRect iDrawRect;

	TRect iBoundingRect;

	TBool iHasBitmapCommand;

	CCommandBuffer* iCommandBuffer;	

	MCommandBufferObserver* iCommandBufferObserver;

#ifdef SYMBIAN_GRAPHICS_GCE

	CFbsFont *iFont;

	TRgb iShadowColor;

	class CPimpl;

	friend class CPimpl;

	CPimpl* iRemoteGcPimpl;

#endif	

	};

#endif	// __REMOTEGC_H__