/*
* 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