// Copyright (c) 1997-2009 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 METAFILE_H
#define METAFILE_H

#include <e32std.h>
#include <gdi.h>
#include <s32file.h>

const TInt KWinPrintMetafileUidVal(268435687);

/**
 * @internalTechnology
 * Internal to Symbian
 */
class CMetafileDevice :	public CGraphicsDevice
	{
protected:
	IMPORT_C CMetafileDevice(CGraphicsDevice* aDevice);
public:
	IMPORT_C static CMetafileDevice* NewL(CGraphicsDevice* aDevice);
	IMPORT_C ~CMetafileDevice();
	IMPORT_C TInt HorizontalTwipsToPixels(TInt aTwips) const;
	IMPORT_C TInt VerticalTwipsToPixels(TInt aTwips) const;
	IMPORT_C TInt HorizontalPixelsToTwips(TInt aPixels) const;
	IMPORT_C TInt VerticalPixelsToTwips(TInt aPixels) const;
	IMPORT_C TInt GetNearestFontInTwips(CFont*& aFont, const TFontSpec& aFontSpec);
	IMPORT_C TInt GetNearestFontToDesignHeightInTwips(CFont*& aFont,const TFontSpec& aFontSpec);
	IMPORT_C TInt GetNearestFontToMaxHeightInTwips(CFont*& aFont,const TFontSpec& aFontSpec, TInt aMaxHeight);
	IMPORT_C void ReleaseFont(CFont* aFont);
	IMPORT_C TDisplayMode DisplayMode() const;
	IMPORT_C TSize SizeInPixels() const;
	IMPORT_C TSize SizeInTwips() const;
	IMPORT_C TInt CreateContext(CGraphicsContext*& aGC);
	IMPORT_C TInt NumTypefaces() const;
	IMPORT_C void TypefaceSupport(TTypefaceSupport& aTypefaceSupport, TInt aTypefaceIndex) const;
	IMPORT_C TInt FontHeightInTwips(TInt aTypefaceIndex, TInt aHeightIndex) const;
	IMPORT_C void PaletteAttributes(TBool& aModifiable, TInt& aNumEntries) const;
	IMPORT_C void SetPalette(CPalette* aPalette);
	IMPORT_C TInt GetPalette(CPalette*& aPalette) const;
	IMPORT_C void UseGcL(TInt aGcIndex);
	IMPORT_C void StartOutputStreamL(RWriteStream& aStream);  // Returns error code
	IMPORT_C void EndOfStreamL(); 
	IMPORT_C RWriteStream& WriteStream();
private:
	TInt iGcCount;
	TInt iGcIndex;
	CGraphicsDevice* iRealDevice;
	RWriteStream* iWriteStream;
	};

/**
 * @internalTechnology
 * Internal to Symbian
 */
class CMetafileGc : public CGraphicsContext
	{
	friend class CMetafileDevice;
protected:
	IMPORT_C CMetafileGc(CMetafileDevice* aMetafileDevice, TInt anIndex);
public:
	IMPORT_C ~CMetafileGc();
	IMPORT_C CGraphicsDevice* Device() const;
	IMPORT_C void SetOrigin(const TPoint& aPos = TPoint(0, 0));
	IMPORT_C void SetDrawMode(TDrawMode aDrawingMode);
	IMPORT_C void SetClippingRect(const TRect& aRect);
	IMPORT_C void CancelClippingRect();
	IMPORT_C void Reset();
	IMPORT_C void UseFont(const CFont* aFont);
	IMPORT_C void DiscardFont();
	IMPORT_C void SetUnderlineStyle(TFontUnderline aUnderlineStyle);
	IMPORT_C void SetStrikethroughStyle(TFontStrikethrough aStrikethroughStyle);
	IMPORT_C void SetWordJustification(TInt aExcessWidth, TInt aNumGaps);
	IMPORT_C void SetCharJustification(TInt aExcessWidth, TInt aNumChars);
	IMPORT_C void SetPenColor(const TRgb& aColor);
	IMPORT_C void SetPenStyle(TPenStyle aPenStyle);
	IMPORT_C void SetPenSize(const TSize& aSize);
	IMPORT_C void SetBrushColor(const TRgb& aColor);
	IMPORT_C void SetBrushStyle(TBrushStyle aBrushStyle);
	IMPORT_C void SetBrushOrigin(const TPoint& aOrigin);
	IMPORT_C void UseBrushPattern(const CFbsBitmap* aBitmap);
	IMPORT_C void DiscardBrushPattern();
	IMPORT_C void MoveTo(const TPoint& aPoint);
	IMPORT_C void MoveBy(const TPoint& aVector);
	IMPORT_C void Plot(const TPoint& aPoint);
	IMPORT_C void DrawArc(const TRect& aRect, const TPoint& aStart, const TPoint& aEnd);
	IMPORT_C void DrawLine(const TPoint& aPoint1, const TPoint& aPoint2);
	IMPORT_C void DrawLineTo(const TPoint& aPoint);
	IMPORT_C void DrawLineBy(const TPoint& aVector);
	IMPORT_C void DrawPolyLine(const CArrayFix<TPoint>* aPointList);
	IMPORT_C void DrawPolyLine(const TPoint* aPointList, TInt aNumPoints);
	IMPORT_C void DrawPie(const TRect& aRect, const TPoint& aStart, const TPoint& aEnd);
	IMPORT_C void DrawEllipse(const TRect& aRect);
	IMPORT_C void DrawRect(const TRect& aRect);
	IMPORT_C void DrawRoundRect(const TRect& aRect, const TSize& aCornerSize);
	IMPORT_C TInt DrawPolygon(const CArrayFix<TPoint>* aPointList, TFillRule aFillRule = EAlternate);
	IMPORT_C TInt DrawPolygon(const TPoint* aPointList, TInt aNumPoints, TFillRule aFillRule = EAlternate);
	IMPORT_C void DrawBitmap(const TPoint& aTopLeft, const CFbsBitmap* aSource);
	IMPORT_C void DrawBitmap(const TRect& aDestRect, const CFbsBitmap* aSource);
	IMPORT_C void DrawBitmap(const TRect& aDestRect, const CFbsBitmap* aSource, const TRect& aSourceRect);
	IMPORT_C void DrawBitmapMasked(const TRect& aDestRect,const CFbsBitmap* aBitmap,const TRect& aSourceRect,const CFbsBitmap* aMaskBitmap,TBool aInvertMask);
	IMPORT_C void DrawBitmapMasked(const TRect& aDestRect,const CWsBitmap* aBitmap,const TRect& aSourceRect,const CWsBitmap* aMaskBitmap,TBool aInvertMask);
	IMPORT_C void DrawText(const TDesC& aString, const TPoint& aPosition);
	IMPORT_C void DrawText(const TDesC& aString, const TRect& aBox, TInt aBaselineOffset, TTextAlign aHoriz = ELeft, TInt aLeftMrg = 0);
							
	IMPORT_C void MapColors(const TRect& aRect,const TRgb* aColors,TInt aNumPairs,TBool aMapForwards);
	IMPORT_C TInt SetClippingRegion(const TRegion &aRegion);
	IMPORT_C void CancelClippingRegion();
	IMPORT_C void DrawTextVertical(const TDesC& aText,const TPoint& aPos,TBool aUp);
	IMPORT_C void DrawTextVertical(const TDesC& aText,const TRect& aBox,TInt aBaselineOffset,TBool aUp,TTextAlign aVert=ELeft,TInt aMargin=0);								
	IMPORT_C TInt AlphaBlendBitmaps(const TPoint& aDestPt, const CFbsBitmap* aSrcBmp, const TRect& aSrcRect, const CFbsBitmap* aAlphaBmp, const TPoint& aAlphaPt);
	IMPORT_C TInt AlphaBlendBitmaps(const TPoint& aDestPt, const CWsBitmap* aSrcBmp,  const TRect& aSrcRect, const CWsBitmap*  aAlphaBmp, const TPoint& aAlphaPt);
	
private:
	void ExternalizeBitmapL(const CFbsBitmap* aSource);
private:
	CMetafileDevice* iDevice;
	TInt iIndex;
	};

/**
 * @internalTechnology
 * Internal to Symbian
 */
class CMetafilePlayback : public CBase
	{
protected:
	IMPORT_C CMetafilePlayback(CGraphicsDevice* aDevice);
public:
	IMPORT_C static CMetafilePlayback* NewL(CGraphicsDevice* aDevice);
	IMPORT_C ~CMetafilePlayback();
	IMPORT_C void DrawL(RReadStream& aReadStream);
protected:
	CGraphicsDevice* iDevice;
	};

#endif