Symaptic: os/graphics/graphicsdeviceinterface/gdi/tgdi/TGraphicsContext.h@260cb5ec6c19

     1 // Copyright (c) 2002-2009 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 // Simple stubs for testing purposes

    15 //

    16 //

    18 /**

    19  @file

    20  @test

    21  @internalComponent Internal Symbian test code

    22 */

    24 #ifndef __TGRAPHICSCONTEXT_H__

    25 #define __TGRAPHICSCONTEXT_H__

    27 #include <gdi.h>

    29 /**

    30  *

    31  * Class to provide a dummy palette for test purposes

    32  *

    33  */

    36 class CTestPalette2 : public CPalette

    37 	{

    38 public:

    39 	enum { KNumEntries = 4 };

    40 	CTestPalette2()

    41 		{

    42 		iArray = iRgbArray;

    43 		iNumEntries = KNumEntries;

    44 		}

    45 	~CTestPalette2();

    46 private:

    47 	TRgb iRgbArray[KNumEntries];

    48 	};

    50 /**

    51  *

    52  * Class to provide a dummy graphics device for test purposes

    53  *

    54  */

    57 class CTestGraphicsDevice : public CBitmapDevice

    58 	{

    59 public:

    60 	static CTestGraphicsDevice* NewL(TSize aSizeInPixels);

    61 	~CTestGraphicsDevice();

    62 	void SetHorizontalTwipsToPixels(TInt aTwipsToPixels);

    63 	void SetVerticalTwipsToPixels(TInt aTwipsToPixels);

    64 	TDisplayMode DisplayMode() const;

    65 	TSize SizeInPixels() const;

    66 	TSize SizeInTwips() const;

    67 	TInt CreateContext(CGraphicsContext*& aGC);

    68 	TInt NumTypefaces() const;

    69 	void TypefaceSupport(TTypefaceSupport& aTypefaceSupport,TInt aTypefaceIndex) const;

    70 	TInt FontHeightInTwips(TInt aTypefaceIndex,TInt aHeightIndex) const;

    71 	void PaletteAttributes(TBool& aModifiable,TInt& aNumEntries) const;

    72 	void SetPalette(CPalette* aPalette);

    73 	TInt GetPalette(CPalette*& aPalette) const;

    75 	// from CBitmapFont

    76 	void GetPixel(TRgb& aColor,const TPoint& aPixel) const;

    77 	void GetScanLine(TDes8& aBuf,const TPoint& aStartPixel,TInt aLength,TDisplayMode aDispMode) const;

    78 	TInt AddFile(const TDesC& aName,TInt& aId);

    79 	void RemoveFile(TInt aId);

    80 	TInt GetNearestFontInPixels(CFont*& aFont,const TFontSpec& aFontSpec);

    81 	TInt GetNearestFontToDesignHeightInPixels(CFont*& aFont, const TFontSpec& aFontSpec);

    82 	TInt GetNearestFontToMaxHeightInPixels(CFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight);

    83 	TInt FontHeightInPixels(TInt aTypefaceIndex,TInt aHeightIndex) const;

    85 	// from MGraphicsDeviceMap from CBitmapFont

    86 	TInt HorizontalTwipsToPixels(TInt aTwips) const;

    87 	TInt VerticalTwipsToPixels(TInt aTwips) const;

    88 	TInt HorizontalPixelsToTwips(TInt aPixels) const;

    89 	TInt VerticalPixelsToTwips(TInt aPixels) const;

    90 	TInt GetNearestFontInTwips(CFont*& aFont,const TFontSpec& aFontSpec);

    91 	TInt GetNearestFontToDesignHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec);

    92 	TInt GetNearestFontToMaxHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight);

    93 	void ReleaseFont(CFont* aFont);

    94 private:

    95 	CTestGraphicsDevice(TSize aSizeInPixels);

    96 private:

    97 	TSize iSize;

    98 	TInt iHorizontalTwipsToPixels;

    99 	TInt iVerticalTwipsToPixels;

   100 	CTestPalette2* iPalette;

   101 	};

   104 /**

   105  *

   106  * Class representing a line of displayed data

   107  *

   108  */

   111 class TTestGCDisplayLine

   112 	{

   113 public:

   114 	TPoint iLinePos;

   115 	TBuf16<80> iLineData;

   117 	void Set(const TPoint& aLinePos, const TDesC16& aLineData)

   118 		{

   119 			iLineData = aLineData;

   120 			iLinePos = aLinePos;

   121 		}

   123 	TPtrC16 LineData() const

   124 		{

   125 			return TPtrC16(iLineData.Ptr(), iLineData.Length());

   126 		}

   128 	const TPoint& Position() const

   129 		{

   130 			return iLinePos;

   131 		}

   133 	};

   135 /**

   136  *

   137  * Class to provide a dummy graphics context for test purposes

   138  *

   139  */

   141 class CTestGraphicsContext : public CGraphicsContext

   142 	{

   143 public:

   144 	enum TPanic

   145 		{

   146 		EUnimplemented,

   147 		ETypefaceIndexOutOfRange,

   148 		EUnknownFont

   149 		};

   150 	static void Panic(TInt aReason);

   151 	CTestGraphicsContext(CTestGraphicsDevice* aGd);

   152 	~CTestGraphicsContext();

   153 	CGraphicsDevice* Device() const;

   154 	void SetOrigin(const TPoint& aPos);

   155 	void SetDrawMode(TDrawMode aDrawingMode);

   156 	void SetClippingRect(const TRect& aRect);

   157 	void CancelClippingRect();

   158 	void Reset();

   159 	void UseFont(const CFont* aFont);

   160 	void DiscardFont();

   161 	void SetUnderlineStyle(TFontUnderline aUnderlineStyle);

   162 	void SetStrikethroughStyle(TFontStrikethrough aStrikethroughStyle);

   163 	void SetWordJustification(TInt aExcessWidth,TInt aNumGaps);

   164 	void SetCharJustification(TInt aExcessWidth,TInt aNumChars);

   165 	void SetPenColor(const TRgb& aColor);

   166 	void SetPenStyle(TPenStyle aPenStyle);

   167 	void SetPenSize(const TSize& aSize);

   168 	void SetBrushColor(const TRgb& aColor);

   169 	void SetBrushStyle(TBrushStyle aBrushStyle);

   170 	void SetBrushOrigin(const TPoint& aOrigin);

   171 	void UseBrushPattern(const CFbsBitmap* aBitmap);

   172 	void DiscardBrushPattern();

   173 	void MoveTo(const TPoint& aPoint);

   174 	void MoveBy(const TPoint& aVector);

   175 	void Plot(const TPoint& aPoint);

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

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

   178 	void DrawLineTo(const TPoint& aPoint);

   179 	void DrawLineBy(const TPoint& aVector);

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

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

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

   183 	void DrawEllipse(const TRect& aRect);

   184 	void DrawRect(const TRect& aRect);

   185 	void DrawRoundRect(const TRect& aRect,const TSize& aCornerSize);

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

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

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

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

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

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

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

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

   194 	void DrawText(const TDesC& aText,const TRect& aBox,TInt aBaselineOffset,TTextAlign aAlignment,

   195 		TInt aLeftMargin);

   196 	void DrawText(const TDesC& aText, const TPoint& aPosition,

   197 		const TDrawTextParam&);

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

   200 	TInt SetClippingRegion(const TRegion &aRegion);

   201 	void CancelClippingRegion();

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

   203 	void DrawTextVertical(const TDesC& aText,const TRect& aBox,TInt aBaselineOffset,TBool aUp,TTextAlign aVert=ELeft,TInt aMargin=0);

   205 	void ClearDrawnArea()

   206 		{

   207 		iDrawnArea.iTl.iX = iDrawnArea.iBr.iX = iDrawnArea.iTl.iY = iDrawnArea.iBr.iY = 0;

   208 		}

   209 	TRect DrawnArea() const

   210 		{

   211 		return iDrawnArea;

   212 		}

   213 	void ClearAreaDrawnWithCondition()

   214 		{

   215 		iAreaDrawnWithCondition.iTl.iX = iAreaDrawnWithCondition.iBr.iX

   216 			= iAreaDrawnWithCondition.iTl.iY = iAreaDrawnWithCondition.iBr.iY = 0;

   217 		}

   218 	const TRect& AreaDrawnWithCondition() const

   219 		{

   220 		return iAreaDrawnWithCondition;

   221 		}

   222 	void AddRectToDrawnArea(const TRect& aRect);

   223 	void AddPointToDrawnArea(const TPoint& aPoint);

   225 	const TTestGCDisplayLine& DisplayLine(TInt index)

   226 		{

   227 			return iLineArray[index];

   228 		}

   229 private:

   230 	CTestGraphicsDevice* iGd;

   231 	TPoint iOrigin;

   232 	TDrawMode iDrawMode;

   233 	const CFont* iFont;

   234 	TSize iPenSize;

   235 	TPoint iCurrentPos;

   236 	TRect iDrawnArea;

   237 	TRect iAreaDrawnWithCondition;

   238 	TInt iPenColorIndex;

   239 	RArray<TTestGCDisplayLine> iLineArray;

   240 	};

   242 /**

   243  *

   244  * Class to provide a dummy font for test purposes

   245  *

   246  */

   247 class CTestFont : public CFont

   248 	{

   249 public:

   250 	virtual TUid DoTypeUid() const;

   251 	TInt DoHeightInPixels() const;

   252 	TInt DoAscentInPixels() const;

   253 	TInt DoCharWidthInPixels(TChar aChar) const;

   254 	TInt DoTextWidthInPixels(const TDesC& aText) const;

   255 	TInt DoBaselineOffsetInPixels() const;

   256 	TInt DoTextCount(const TDesC& aText,TInt aWidthInPixels) const;

   257 	TInt DoTextCount(const TDesC& aText,TInt aWidthInPixels,TInt& aExcessWidthInPixels) const;

   258 	TInt DoMaxCharWidthInPixels() const;

   259 	TInt DoMaxNormalCharWidthInPixels() const;

   260 	TFontSpec DoFontSpecInTwips() const;

   261 	TCharacterDataAvailability DoGetCharacterData(TUint aCode,

   262 		TOpenFontCharMetrics& aMetrics,const TUint8*& aBitmap,TSize& aBitmapSize) const;

   263 	};

   266 #endif /* __TGRAPHICSCONTEXT_H__ */

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200
changeset 1	260cb5ec6c19
permissions	-rw-r--r--