--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/textrendering/textformatting/test/src/TGraphicsContext.h	Tue Feb 02 02:02:46 2010 +0200
@@ -0,0 +1,345 @@
+/*
+* Copyright (c) 2002-2009 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: 
+* Simple stubs for testing purposes
+*
+*/
+
+
+#ifndef __TGRAPHICSCONTEXT_H__
+#define __TGRAPHICSCONTEXT_H__
+
+#include <w32std.h>
+
+/** Representing a line of displayed data.
+@internalComponent */
+class TTestGCDisplayLine 
+	{
+public:
+	TPoint iLinePos;
+	TBuf16<80> iLineData;
+
+	TTestGCDisplayLine() : iLinePos(0,0) {}
+	TTestGCDisplayLine(const TInt aX, const TInt aY, const TDesC16& aLineData) : iLinePos(aX, aY) 
+		{
+		iLineData = aLineData;
+		}
+	TTestGCDisplayLine(const TPoint aLinePos, const TDesC16& aLineData) : iLinePos(aLinePos) 
+		{
+		iLineData = aLineData;
+		}
+
+	void Set(const TPoint& aLinePos, const TDesC16& aLineData)
+		{
+		iLineData = aLineData;
+		iLinePos = aLinePos;
+		}
+
+	TPtrC16 LineData() const
+		{
+		return TPtrC16(iLineData.Ptr(), iLineData.Length());
+		}
+
+	const TPoint& Position() const
+		{
+		return iLinePos;
+		}
+	};
+
+/** Holds a reference-counted array of TTestGCDisplayLines. Copy makes another
+reference to the same array, allowing arrays to be shared between graphics
+contexts and devices.
+@internalComponent
+*/
+class CLineArray : public CBase
+	{
+public:
+	CLineArray();
+	~CLineArray();
+	void ConstructL(TInt aGranularity);
+	/** Make this refer to the same array as aOther currently does. */
+	void Copy(const CLineArray& aOther);
+	/** Removes this reference to the array. Deletes the array if all
+	references have been removed. */
+	void Null();
+	void ResetLineArray();
+	const TTestGCDisplayLine& Line(TInt aIndex);
+	void AddLineL(TTestGCDisplayLine& aLine);
+	TInt LinesPresent();
+	/** Finds a TTestGCDisplayLine with aText contained somewhere in its data.
+	Returns 0 if there is no such line. */
+	const TTestGCDisplayLine* Find(const TDesC& aText);
+	/** Disables any more adding to the line array, and disables it
+	in any CLineArrays copied from this one. */
+	void Disable() { iArrayIsEnabled = EFalse; }
+	/** Re-enables adding to the line array, and in any CLineArrays copied from
+	this one. */
+	void Enable() { iArrayIsEnabled = ETrue; }
+private:
+	// CLineArrays copied from one another form a circular doubly-linked
+	// list. This is roughly equivalent to reference-counting; when iPrev and
+	// iNext point to 'this', this is the same as the reference count being 1.
+	mutable const CLineArray* iPrev;
+	mutable const CLineArray* iNext;
+	TBool iArrayIsEnabled;
+	RArray<TTestGCDisplayLine>* iArray;
+	};
+
+class CTestPalette : public CPalette
+	{
+public:
+	enum { KNumEntries = 4 };
+	CTestPalette()
+		{
+		iArray = iRgbArray;
+		iNumEntries = KNumEntries;
+		}
+	~CTestPalette()
+		{
+		// Stop iRgbArray from being deleted by ~CPalette.
+		// Ideally, iRgbArray should be removed in favour of
+		// allocating one on the heap.
+		iArray = 0;
+		}
+private:
+	TRgb iRgbArray[KNumEntries];
+	};
+
+class CTestGraphicsDevice : public CWsScreenDevice
+	{
+public:
+	static CTestGraphicsDevice* NewL(TSize aSizeInPixels, RWsSession* aWsSession);
+	CTestGraphicsDevice(TSize aSizeInPixels, RWsSession* aWsSession);
+	CTestGraphicsDevice(TSize aSizeInPixels);
+	void SetHorizontalTwipsToPixels(TInt aTwipsToPixels);
+	void SetVerticalTwipsToPixels(TInt aTwipsToPixels);
+	TDisplayMode DisplayMode() const;
+	TSize SizeInPixels() const;
+	TSize SizeInTwips() const;
+	TInt CreateContext(CGraphicsContext*& aGC);
+	TInt CreateContext(CWindowGc*& aGC);
+	TInt NumTypefaces() const;
+	void TypefaceSupport(TTypefaceSupport& aTypefaceSupport,TInt aTypefaceIndex) const;
+	TInt FontHeightInTwips(TInt aTypefaceIndex,TInt aHeightIndex) const;
+	void PaletteAttributes(TBool& aModifiable,TInt& aNumEntries) const;
+	void SetPalette(CPalette* aPalette);
+	TInt GetPalette(CPalette*& aPalette) const;
+
+	// from CBitmapDevice
+	void GetPixel(TRgb& aColor,const TPoint& aPixel) const;
+	void GetScanLine(TDes8& aBuf,const TPoint& aStartPixel,TInt aLength,TDisplayMode aDispMode) const;
+	TInt AddFile(const TDesC& aName,TInt& aId);
+	void RemoveFile(TInt aId);
+	TInt GetNearestFontInPixels(CFont*& aFont,const TFontSpec& aFontSpec);
+	TInt FontHeightInPixels(TInt aTypefaceIndex,TInt aHeightIndex) const;
+
+	// from MGraphicsDeviceMap from CBitmapDevice
+	TInt HorizontalTwipsToPixels(TInt aTwips) const;
+	TInt VerticalTwipsToPixels(TInt aTwips) const;
+	TInt HorizontalPixelsToTwips(TInt aPixels) const;
+	TInt VerticalPixelsToTwips(TInt aPixels) const;
+	TInt GetNearestFontInTwips(CFont*& aFont,const TFontSpec& aFontSpec);
+	void ReleaseFont(CFont* aFont);
+
+	// new functions
+	void ClearDrawnArea()
+		{
+		iDrawnArea.iTl.iX = iDrawnArea.iBr.iX = iDrawnArea.iTl.iY = iDrawnArea.iBr.iY = 0;
+		}
+	TRect DrawnArea() const
+		{
+		return iDrawnArea;
+		}
+	void ClearAreaDrawnWithCondition()
+		{
+		iAreaDrawnWithCondition.iTl.iX = iAreaDrawnWithCondition.iBr.iX
+			= iAreaDrawnWithCondition.iTl.iY = iAreaDrawnWithCondition.iBr.iY = 0;
+		}
+	const TRect& AreaDrawnWithCondition() const
+		{
+		return iAreaDrawnWithCondition;
+		}
+	void AddRectToDrawnArea(const TRect& aRect, TBool aCondition);
+	CLineArray& LineArray() { return iLineArray; }
+	void SetLineArray(const CLineArray& aLineArray)
+		{
+		iLineArray.Copy(aLineArray);
+		}
+	
+	// new functions for testing area
+	void SetTestingArea(TRect& aTestingArea);
+	void AddTestingArea(TRect& moreTestingArea);
+	void ClearTestingArea()
+		{
+		iTestingArea.iTl.iX = iTestingArea.iBr.iX
+			= iTestingArea.iTl.iY = iTestingArea.iBr.iY = 0;
+		}
+	// check if anything has been drawn on testing area
+	inline TBool HasDrawnOnTestingArea()
+		{
+		return iHasDrawnOnTestingArea;
+		}
+	
+private:
+	void Set(TSize aSizeInPixels);
+
+	// a rect of testing area
+	TRect iTestingArea;
+	TBool iHasDrawnOnTestingArea;
+	
+	TRect iDrawnArea;
+	TRect iAreaDrawnWithCondition;
+	TSize iSize;
+	TInt iHorizontalTwipsToPixels;
+	TInt iVerticalTwipsToPixels;
+	CTestPalette iPalette;
+	CLineArray iLineArray;
+	};
+
+class CTestGraphicsContext : public CWindowGc
+	{
+public:
+	enum TPanic
+		{
+		EUnimplemented,
+		ETypefaceIndexOutOfRange,
+		EUnknownFont,
+		EErrorParameter
+		};
+	static void Panic(TInt aReason);
+	CTestGraphicsContext(CTestGraphicsDevice* aGd);
+	TInt Construct();
+
+	// from CBitmapContext
+	CGraphicsDevice* Device() const;
+	void SetOrigin(const TPoint& aPos);
+	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* aBitmap);
+	void DiscardBrushPattern();
+	void MoveTo(const TPoint& aPoint);
+	void MoveBy(const TPoint& aVector);
+	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& aVector);
+	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& aCornerSize);
+	TInt DrawPolygon(const CArrayFix<TPoint>* aPointList,TFillRule aFillRule);
+	TInt DrawPolygon(const TPoint* aPointList,TInt aNumPoints,TFillRule aFillRule);
+	void DrawBitmap(const TPoint& aTopLeft,const CFbsBitmap* aSource);
+	void DrawBitmap(const TRect& aDestRect,const CFbsBitmap* aSource);
+	void DrawBitmap(const TRect& aDestRect,const CFbsBitmap* aSource,const TRect& aSourceRect);
+	void DrawText(const TDesC& aText,const TPoint& aPosition);
+	void DrawText(const TDesC& aText,const TRect& aBox,TInt aBaselineOffset,TTextAlign aAlignment,
+		TInt aLeftMargin);
+	TInt SetClippingRegion(const TRegion &aRegion);
+	void CancelClippingRegion();
+
+	// from CBitmapContext
+	void Clear();
+	void Clear(const TRect& aRect);
+	void CopyRect(const TPoint& aOffset,const TRect& aRect);
+	void BitBlt(const TPoint& aPoint,const CFbsBitmap* aBitmap);
+	void BitBlt(const TPoint& aPoint,const CFbsBitmap* aBitmap,const TRect& aRect);
+	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);
+
+	// new functions
+	void AddRectToDrawnArea(const TRect& aRect);
+	void AddPointToDrawnArea(const TPoint& aPoint);
+	
+	void DrawText(const TDesC& aText,TTextParameters* aParam,const TPoint& aPosition);
+	void DrawText(const TDesC& aText,TTextParameters* aParam,const TRect& aBox,TInt aBaselineOffset,TTextAlign aAlignment,
+		TInt aLeftMargin);
+protected:	
+	TInt APIExtension(TUid aUid, TAny*& aOutput, TAny* aInput);
+
+private:
+	CTestGraphicsDevice* iGd;
+	TPoint iOrigin;
+	TDrawMode iDrawMode;
+	const CFont* iFont;
+	TSize iPenSize;
+	TPoint iCurrentPos;
+	TInt iPenColorIndex;
+	CLineArray iLineArray;
+	};
+
+class CTestFont : public CFont
+	{
+public:
+	/**
+	Sample Unicode characters.
+	@internalComponent
+	*/
+	enum
+		{
+ 		/** ESC has no data at all */
+ 		KEsc = 0x001B,
+ 		/** Hebrew letter Tav, has right side-bearing */
+ 		KTav = 0x05EA,
+ 		/** Arabic Waw has a massive left side-bearing */
+ 		KArabicWaw = 0x0648,
+   		/** ZWNBS has zero width. */
+   		KZeroWidthNoBreakSpace = 0xFEFF,
+   		/** ZWS has zero width. */
+   		KZeroWidthSpace = 0x200B,
+   		/** Hair space has one pixel width. */
+   		KHairSpace = 0x200A,
+   		/** Thin space has two pixel width. */
+   		KThinSpace = 0x2009,
+   		/** 3-per-em space has three pixel width. */
+   		KThreePerEmSpace = 0x2004,
+   		/** Full-width solidus has a right side-bearing */
+   		KFullWidthSolidus = 0xFF0F
+   		};
+   	TUid DoTypeUid() const;
+   	TInt DoHeightInPixels() const;
+   	TInt DoAscentInPixels() const;
+   	TInt DoCharWidthInPixels(TChar aChar) const;
+   	TInt DoTextWidthInPixels(const TDesC& aText) const;
+   	TInt DoBaselineOffsetInPixels() const;
+   	TInt DoTextCount(const TDesC& aText,TInt aWidthInPixels) const;
+   	TInt DoTextCount(const TDesC& aText,TInt aWidthInPixels,TInt& aExcessWidthInPixels) const;
+   	TInt DoMaxCharWidthInPixels() const;
+   	TInt DoMaxNormalCharWidthInPixels() const;
+   	TFontSpec DoFontSpecInTwips() const;
+ 	TCharacterDataAvailability DoGetCharacterData(TUint aCode,
+ 		TOpenFontCharMetrics& aMetrics,
+ 		const TUint8*& aBitmap, TSize& aBitmapSize) const;
+	};
+
+#endif