diff -r ea44a32a96bc -r 662fa7de7023 fontservices/textbase/tgdi/TGraphicsContext.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fontservices/textbase/tgdi/TGraphicsContext.cpp	Mon Jul 12 14:38:26 2010 +0800
@@ -0,0 +1,716 @@
+// Copyright (c) 2002-2010 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:
+//
+
+/**
+ @file
+ @test
+ @internalComponent Internal Symbian test code
+*/
+
+#include "TTYPES.H"
+#include "TGraphicsContext.h"
+
+
+
+// Utility functions to show contents of test data using test.Printf
+
+extern void PrintTestData (const TDesC& aTitle , const TDesC16& aDataBuffer);
+
+extern void PrintTestData(const TDesC& aTitle, const TText16* aDataBuffer, const TInt aSize);
+
+
+
+
+_LIT(KTestFontName, "Non Functional Test Font");
+
+
+CTestPalette2::~CTestPalette2()
+	{
+	iArray = 0; //avoid attempting to deallocate iArray in ~CPalette
+	iNumEntries = 0;
+	}
+
+//
+//
+// CTestGraphicsDevice
+//
+//
+CTestGraphicsDevice* CTestGraphicsDevice::NewL(TSize aSizeInPixels)
+	{
+	CTestGraphicsDevice* theDevice = new (ELeave) CTestGraphicsDevice(aSizeInPixels);
+	CleanupStack::PushL(theDevice);
+	theDevice->iPalette = new (ELeave) CTestPalette2;
+	theDevice->iPalette->SetEntry(0, KRgbBlack);
+	theDevice->iPalette->SetEntry(1, KRgbWhite);
+	theDevice->iPalette->SetEntry(2, KRgbMagenta);
+	theDevice->iPalette->SetEntry(3, KRgbCyan);
+	
+	CleanupStack::Pop(theDevice);
+	return theDevice;
+	}
+
+CTestGraphicsDevice::CTestGraphicsDevice(TSize aSizeInPixels)
+	: iSize(aSizeInPixels),
+	iHorizontalTwipsToPixels(40),
+	iVerticalTwipsToPixels(40)
+	{
+	}
+CTestGraphicsDevice::~CTestGraphicsDevice()
+	{
+	delete iPalette;
+	}
+
+void CTestGraphicsDevice::SetHorizontalTwipsToPixels(TInt aTwipsToPixels)
+	{
+	iHorizontalTwipsToPixels = aTwipsToPixels;
+	}
+
+void CTestGraphicsDevice::SetVerticalTwipsToPixels(TInt aTwipsToPixels)
+	{
+	iVerticalTwipsToPixels = aTwipsToPixels;
+	}
+
+TDisplayMode CTestGraphicsDevice::DisplayMode() const
+	{
+	return EColor16M;
+	}
+
+TSize CTestGraphicsDevice::SizeInPixels() const
+	{
+	return iSize;
+	}
+
+TSize CTestGraphicsDevice::SizeInTwips() const
+	{
+	return TSize(iSize.iWidth * iHorizontalTwipsToPixels,
+		iSize.iHeight * iVerticalTwipsToPixels);
+	}
+
+TInt CTestGraphicsDevice::CreateContext(CGraphicsContext*& aGC)
+	{
+	CGraphicsContext* r = new CTestGraphicsContext(this);
+	if (!r)
+		return KErrNoMemory;
+	aGC = r;
+	return KErrNone;
+	}
+
+TInt CTestGraphicsDevice::NumTypefaces() const
+	{
+	return 1;
+	}
+
+void CTestGraphicsDevice::TypefaceSupport(TTypefaceSupport& aTypefaceSupport, TInt aTypefaceIndex) const
+	{
+	// The only font we have at the moment is 10 pixels * 12 pixels for every character
+	__ASSERT_ALWAYS(aTypefaceIndex == 0,
+		CTestGraphicsContext::Panic(CTestGraphicsContext::ETypefaceIndexOutOfRange));
+	aTypefaceSupport.iIsScalable = EFalse;
+	aTypefaceSupport.iMaxHeightInTwips = iVerticalTwipsToPixels * 12;
+	aTypefaceSupport.iMinHeightInTwips = iVerticalTwipsToPixels * 10;
+	aTypefaceSupport.iNumHeights = 1;
+	aTypefaceSupport.iTypeface.iName = KTestFontName;
+	aTypefaceSupport.iTypeface.SetIsProportional(ETrue); // a bit of a lie
+	aTypefaceSupport.iTypeface.SetIsSerif(EFalse);
+	aTypefaceSupport.iTypeface.SetIsSymbol(EFalse);
+	}
+
+TInt CTestGraphicsDevice::FontHeightInTwips(TInt aTypefaceIndex, TInt aHeightIndex) const
+	{
+	// The only font we have at the moment is 10 pixels * 12 pixels for every character
+	__ASSERT_ALWAYS(aTypefaceIndex == 0,
+		CTestGraphicsContext::Panic(CTestGraphicsContext::ETypefaceIndexOutOfRange));
+	return iVerticalTwipsToPixels * FontHeightInPixels(aTypefaceIndex, aHeightIndex);
+	}
+
+void CTestGraphicsDevice::PaletteAttributes(TBool& aModifiable, TInt& aNumEntries) const
+	{
+	aModifiable = ETrue;
+	aNumEntries = 4;
+	}
+
+void CTestGraphicsDevice::SetPalette(CPalette* aPalette)
+	{
+	for (TInt i = 0; i != CTestPalette2::KNumEntries; ++i)
+		{
+		TRgb col = aPalette->GetEntry(i);
+		iPalette -> SetEntry(i, col);
+		}
+	}
+
+TInt CTestGraphicsDevice::GetPalette(CPalette*& aPalette) const
+	{
+	aPalette =  const_cast<CTestPalette2*>(iPalette);
+	return KErrNone;
+	}
+
+void CTestGraphicsDevice::GetPixel(TRgb& aColor, const TPoint&) const
+	{
+	aColor = KRgbWhite;
+	}
+
+void CTestGraphicsDevice::GetScanLine(TDes8&, const TPoint&, TInt, TDisplayMode) const
+	{
+	__ASSERT_DEBUG(0, CTestGraphicsContext::Panic(CTestGraphicsContext::EUnimplemented));
+	}
+
+TInt CTestGraphicsDevice::AddFile(const TDesC&, TInt&)
+	{
+	return KErrNotSupported;
+	}
+
+void CTestGraphicsDevice::RemoveFile(TInt)
+	{
+	}
+
+TInt CTestGraphicsDevice::GetNearestFontInPixels(CFont*& aFont, const TFontSpec& aFontSpec)
+	{
+	return GetNearestFontToDesignHeightInPixels(aFont, aFontSpec);
+	}
+
+TInt CTestGraphicsDevice::GetNearestFontToDesignHeightInPixels(CFont*& aFont, const TFontSpec& /*aFontSpec*/)
+	{
+	CTestFont* font = new CTestFont();
+	if (!font)
+		return KErrNoMemory;
+	aFont = font;
+	return KErrNone;
+	}
+
+TInt CTestGraphicsDevice::GetNearestFontToMaxHeightInPixels(CFont*& aFont, const TFontSpec& /*aFontSpec*/, TInt /*aMaxHeight*/)
+	{
+	CTestFont* font = new CTestFont();
+	if (!font)
+		return KErrNoMemory;
+	aFont = font;
+	return KErrNone;
+	}
+
+TInt CTestGraphicsDevice::FontHeightInPixels(TInt, TInt) const
+	{
+	return 12;
+	}
+
+TInt CTestGraphicsDevice::HorizontalTwipsToPixels(TInt aTwips) const
+	{
+	return aTwips / iHorizontalTwipsToPixels;
+	}
+
+TInt CTestGraphicsDevice::VerticalTwipsToPixels(TInt aTwips) const
+	{
+	return aTwips / iVerticalTwipsToPixels;
+	}
+
+TInt CTestGraphicsDevice::HorizontalPixelsToTwips(TInt aPixels) const
+	{
+	return aPixels * iHorizontalTwipsToPixels;
+	}
+
+TInt CTestGraphicsDevice::VerticalPixelsToTwips(TInt aPixels) const
+	{
+	return aPixels * iVerticalTwipsToPixels;
+	}
+
+TInt CTestGraphicsDevice::GetNearestFontInTwips(CFont*& aFont, const TFontSpec& aFontSpec)
+	{
+	return GetNearestFontToDesignHeightInTwips(aFont, aFontSpec);
+	}
+
+TInt CTestGraphicsDevice::GetNearestFontToDesignHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec)
+	{
+	TFontSpec fontSpec = aFontSpec;
+	fontSpec.iHeight = VerticalTwipsToPixels(fontSpec.iHeight);
+	return GetNearestFontToDesignHeightInPixels(aFont, fontSpec);
+	}
+
+TInt CTestGraphicsDevice::GetNearestFontToMaxHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight)
+	{
+	TFontSpec fontSpec = aFontSpec;
+	fontSpec.iHeight = VerticalTwipsToPixels(fontSpec.iHeight);
+	return GetNearestFontToMaxHeightInPixels(aFont, fontSpec, VerticalTwipsToPixels(aMaxHeight));
+	}
+
+void CTestGraphicsDevice::ReleaseFont(CFont* aFont)
+	{
+	__ASSERT_ALWAYS(aFont->TypeUid() == TUid::Uid(12345),
+		CTestGraphicsContext::Panic(CTestGraphicsContext::EUnknownFont));
+	delete static_cast<CTestFont*>(aFont);
+	}
+
+//
+//
+// CTestGraphicsContext
+//
+//
+void CTestGraphicsContext::Panic(TInt aReason)
+	{
+	User::Panic(_L("CTestGC"), aReason);
+	}
+
+CTestGraphicsContext::CTestGraphicsContext(CTestGraphicsDevice* aGd)
+	: iGd(aGd), iDrawMode(EDrawModePEN), iPenSize(1,1)
+	{
+	}
+
+CTestGraphicsContext::~CTestGraphicsContext()
+	{
+	iLineArray.Reset();
+	}
+void CTestGraphicsContext::AddRectToDrawnArea(const TRect& aRect)
+	{
+	if (iDrawnArea.IsEmpty())
+		iDrawnArea = aRect;
+	else
+		iDrawnArea.BoundingRect(aRect);
+	// only one condition at the moment
+	if (iDrawMode == EDrawModeXOR)
+		{
+		if (iAreaDrawnWithCondition.IsEmpty())
+			iAreaDrawnWithCondition = aRect;
+		else
+			iAreaDrawnWithCondition.BoundingRect(aRect);
+		}
+	}
+
+void CTestGraphicsContext::AddPointToDrawnArea(const TPoint& aPoint)
+	{
+	AddRectToDrawnArea(TRect(aPoint, iPenSize));
+	}
+
+CGraphicsDevice* CTestGraphicsContext::Device() const
+	{
+	return iGd;
+	}
+
+void CTestGraphicsContext::SetOrigin(const TPoint& aPos)
+	{
+	iOrigin = aPos;
+	}
+
+void CTestGraphicsContext::SetDrawMode(TDrawMode aDrawingMode)
+	{
+	iDrawMode = aDrawingMode;
+	}
+
+void CTestGraphicsContext::SetClippingRect(const TRect& /*aRect*/)
+	{
+	}
+
+void CTestGraphicsContext::CancelClippingRect()
+	{
+	}
+
+void CTestGraphicsContext::Reset()
+	{
+	iDrawMode = EDrawModePEN;
+	iFont = 0;
+	iPenSize.iWidth = 1;
+	iPenSize.iHeight = 1;
+	}
+
+void CTestGraphicsContext::UseFont(const CFont* aFont)
+	{
+	iFont = aFont;
+	}
+
+void CTestGraphicsContext::DiscardFont()
+	{
+	iFont = 0;
+	}
+
+void CTestGraphicsContext::SetUnderlineStyle(TFontUnderline /*UnderlineStyle*/)
+	{
+	}
+
+void CTestGraphicsContext::SetStrikethroughStyle(TFontStrikethrough /*aStrikethroughStyle*/)
+	{
+	}
+
+void CTestGraphicsContext::SetWordJustification(TInt /*aExcessWidth*/,TInt /*aNumGaps*/)
+	{
+	}
+
+void CTestGraphicsContext::SetCharJustification(TInt /*aExcessWidth*/,TInt /*aNumChars*/)
+	{
+	}
+
+void CTestGraphicsContext::SetPenColor(const TRgb& aColor)
+	{
+	CPalette* palette;
+	iGd->GetPalette(palette);
+	iPenColorIndex = palette->NearestIndex(aColor);
+	}
+
+void CTestGraphicsContext::SetPenStyle(TPenStyle /*aPenStyle*/)
+	{
+	}
+
+void CTestGraphicsContext::SetPenSize(const TSize& aSize)
+	{
+	iPenSize = aSize;
+	}
+
+void CTestGraphicsContext::SetBrushColor(const TRgb& /*aColor*/)
+	{
+	}
+
+void CTestGraphicsContext::SetBrushStyle(TBrushStyle /*aBrushStyle*/)
+	{
+	}
+
+void CTestGraphicsContext::SetBrushOrigin(const TPoint& /*aOrigin*/)
+	{
+	}
+
+void CTestGraphicsContext::UseBrushPattern(const CFbsBitmap* /*aBitmap*/)
+	{
+	}
+
+void CTestGraphicsContext::DiscardBrushPattern()
+	{
+	}
+
+void CTestGraphicsContext::MoveTo(const TPoint& aPoint)
+	{
+	iCurrentPos = iOrigin + aPoint;
+	}
+
+void CTestGraphicsContext::MoveBy(const TPoint& aVector)
+	{
+	iCurrentPos += aVector;
+	}
+
+void CTestGraphicsContext::Plot(const TPoint& aPoint)
+	{
+	iCurrentPos = iOrigin + aPoint;
+	AddPointToDrawnArea(iCurrentPos);
+	}
+
+void CTestGraphicsContext::DrawArc(const TRect& aRect,const TPoint& /*aStart*/,const TPoint& aEnd)
+	{
+	TRect r = aRect;
+	r.Move(iOrigin);
+	AddRectToDrawnArea(r);
+	iCurrentPos = iOrigin + aEnd;
+	}
+
+void CTestGraphicsContext::DrawLine(const TPoint& aPoint1,const TPoint& aPoint2)
+	{
+	AddPointToDrawnArea(iOrigin + aPoint1);
+	iCurrentPos = iOrigin + aPoint2;
+	AddPointToDrawnArea(iCurrentPos);
+	}
+
+void CTestGraphicsContext::DrawLineTo(const TPoint& aPoint)
+	{
+	AddPointToDrawnArea(iCurrentPos);
+	iCurrentPos = iOrigin + aPoint;
+	AddPointToDrawnArea(iCurrentPos);
+	}
+
+void CTestGraphicsContext::DrawLineBy(const TPoint& aVector)
+	{
+	AddPointToDrawnArea(iCurrentPos);
+	iCurrentPos += aVector;
+	AddPointToDrawnArea(iCurrentPos);
+	}
+
+void CTestGraphicsContext::DrawPolyLine(const CArrayFix<TPoint>* aPointList)
+	{
+	TInt num = aPointList->Count();
+	while (num--)
+		{
+		iCurrentPos = iOrigin + (*aPointList)[num - 1];
+		AddPointToDrawnArea(iCurrentPos);
+		}
+	}
+
+void CTestGraphicsContext::DrawPolyLine(const TPoint* aPointList,TInt aNumPoints)
+	{
+	while (aNumPoints--)
+		{
+		iCurrentPos = iOrigin + aPointList[aNumPoints - 1];
+		AddPointToDrawnArea(iCurrentPos);
+		}
+	}
+
+void CTestGraphicsContext::DrawPie(const TRect& aRect,
+	const TPoint& /*aStart*/, const TPoint& aEnd)
+	{
+	TRect r = aRect;
+	r.Move(iOrigin);
+	AddRectToDrawnArea(r);
+	iCurrentPos = iOrigin + aEnd;
+	}
+
+void CTestGraphicsContext::DrawEllipse(const TRect& aRect)
+	{
+	TRect r = aRect;
+	r.Move(iOrigin);
+	AddRectToDrawnArea(r);
+	}
+
+void CTestGraphicsContext::DrawRect(const TRect& aRect)
+	{
+	TRect r = aRect;
+	r.Move(iOrigin);
+	AddRectToDrawnArea(r);
+	}
+
+void CTestGraphicsContext::DrawRoundRect(const TRect& aRect,const TSize& aCornerSize)
+	{
+	TRect r = aRect;
+	r.Move(iOrigin);
+	r.Grow(aCornerSize);
+	AddRectToDrawnArea(r);
+	}
+
+TInt CTestGraphicsContext::DrawPolygon(const CArrayFix<TPoint>* aPointList,TFillRule /*aFillRule*/)
+	{
+	TInt num = aPointList->Count();
+	while (num--)
+		{
+		iCurrentPos = iOrigin + (*aPointList)[num - 1];
+		AddPointToDrawnArea(iCurrentPos);
+		}
+	return KErrNone;
+	}
+
+TInt CTestGraphicsContext::DrawPolygon(const TPoint* aPointList,TInt aNumPoints,TFillRule /*aFillRule*/)
+	{
+	while (aNumPoints--)
+		{
+		iCurrentPos = iOrigin + aPointList[aNumPoints - 1];
+		AddPointToDrawnArea(iCurrentPos);
+		}
+	return KErrNone;
+	}
+
+void CTestGraphicsContext::DrawBitmap(const TPoint& /*aTopLeft*/,const CFbsBitmap* /*aSource*/)
+	{
+	}
+
+void CTestGraphicsContext::DrawBitmap(const TRect& /*aDestRect*/,const CFbsBitmap* /*aSource*/)
+	{
+	}
+
+void CTestGraphicsContext::DrawBitmap(const TRect& /*aDestRect*/,const CFbsBitmap* /*aSource*/,const TRect& /*aSourceRect*/)
+	{
+	}
+
+void CTestGraphicsContext::DrawBitmapMasked(const TRect& /*aDestRect*/,const CFbsBitmap* /*aBitmap*/,const TRect& /*aSourceRect*/,const CFbsBitmap* /*aMaskBitmap*/,TBool /*aInvertMask*/)
+	{}
+	
+void CTestGraphicsContext::DrawBitmapMasked(const TRect& /*aDestRect*/,const CWsBitmap* /*aBitmap*/,const TRect& /*aSourceRect*/,const CWsBitmap* /*aMaskBitmap*/,TBool /*aInvertMask*/)
+	{
+	}
+
+void CTestGraphicsContext::MapColors(const TRect &/*aRect*/,const TRgb */*aColors*/,TInt /*aNumPairs*/,TBool /*aMapForwards*/)
+	{}
+	
+TInt CTestGraphicsContext::SetClippingRegion(const TRegion &/*aRegion*/)
+	{
+		return KErrNone;
+	}	
+	
+void CTestGraphicsContext::CancelClippingRegion()
+	{}
+	
+void CTestGraphicsContext::DrawTextVertical(const TDesC& /*aText*/,const TPoint& /*aPos*/,TBool /*aUp*/)
+	{}
+	
+void CTestGraphicsContext::DrawTextVertical(const TDesC& /*aText*/,const TRect& /*aBox*/,TInt /*aBaselineOffset*/,TBool /*aUp*/,TTextAlign /*aVert*/,TInt /*aMargin*/)
+	{}
+	
+/**
+ *
+ * DrawText - merely add line "drawn" to collection
+ *
+ */
+
+
+void CTestGraphicsContext::DrawText(const TDesC& aText,const TPoint& aPosition)
+	{
+
+#ifdef PRINT_DRAWTEXT_LINES
+
+	_LIT(KDrawTextFormat, "DrawText called for position %d,%d:");
+	_LIT(KDrawTextTitle, "Text being drawn");
+		test.Printf(KDrawTextFormat, aPosition.iX, aPosition.iY);
+		PrintTestData(KDrawTextTitle, aText);
+
+#endif /* PRINT_DRAWTEXT_LINES */
+	
+	TTestGCDisplayLine thisLine;
+	thisLine.Set(aPosition, aText);
+	iLineArray.Append(thisLine);
+
+	}
+
+void CTestGraphicsContext::DrawText(const TDesC& aText,const TRect& aBox,TInt aBaselineOffset,
+	TTextAlign /*aAlignment*/, TInt aLeftMargin)
+	{
+	TPoint pos(aBox.iBr.iX + aLeftMargin, aBox.iTl.iY + aBaselineOffset);
+	pos += iOrigin;
+	DrawText(aText, pos);
+	}
+
+void CTestGraphicsContext::DrawText(const TDesC& aText, const TPoint& aPosition,
+	const TDrawTextParam&)
+	{
+	DrawText(aText, aPosition);
+	}
+
+//
+//
+// CTestFont
+//
+//
+TUid CTestFont::DoTypeUid() const
+	{
+	return TUid::Uid(12345);
+	}
+
+TInt CTestFont::DoHeightInPixels() const
+	{
+	return 12;
+	}
+
+TInt CTestFont::DoAscentInPixels() const
+	{
+	return 10;
+	}
+
+TInt CTestFont::DoCharWidthInPixels(TChar aChar) const
+	{
+	switch (aChar)
+		{
+	case 0x200C:
+	case 0x200D:
+	case 0x200E:
+	case 0x200F:
+	case 0x202A:
+	case 0x202B:
+	case 0x202C:
+	case 0x202D:
+	case 0x202E:
+	case 0xFFFF:
+		return 0;
+	default:
+		return 10;
+		}
+	}
+
+TInt CTestFont::DoTextWidthInPixels(const TDesC& aText) const
+	{
+	TInt total = 0;
+	const TText* p = aText.Ptr();
+	const TText* end = p + aText.Length();
+	for (;p != end; ++p)
+		total += CharWidthInPixels(*p);
+	return total;
+	}
+
+TInt CTestFont::DoBaselineOffsetInPixels() const
+	{
+	return 10;
+	}
+
+TInt CTestFont::DoTextCount(const TDesC& aText,TInt aWidthInPixels) const
+	{
+	TInt excess;
+	return DoTextCount(aText, aWidthInPixels, excess);
+	}
+
+TInt CTestFont::DoTextCount(const TDesC& aText,TInt aWidthInPixels,TInt& aExcessWidthInPixels) const
+	{
+	aExcessWidthInPixels = aWidthInPixels;
+	const TText* start = aText.Ptr();
+	const TText* end = start + aText.Length();
+	const TText* p = start;
+	TInt width;
+	while (p != end
+		&& (width = CharWidthInPixels(*p)) <= aExcessWidthInPixels)
+		{
+		aExcessWidthInPixels -= width;
+		++p;
+		}
+	return p - start;
+	}
+
+TInt CTestFont::DoMaxCharWidthInPixels() const
+	{
+	return 10;
+	}
+
+TInt CTestFont::DoMaxNormalCharWidthInPixels() const
+	{
+	return 10;
+	}
+
+TFontSpec CTestFont::DoFontSpecInTwips() const
+	{
+	return TFontSpec(KTestFontName, 12);
+	}
+
+CFont::TCharacterDataAvailability 
+ CTestFont::DoGetCharacterData(TUint aCode, TOpenFontCharMetrics& aMetrics,
+ 	const TUint8*& aBitmap, TSize& aBitmapSize) const
+   	{
+ 	TInt width;
+   	switch (aCode)
+   		{
+   	case 0x001B:
+ 		// ESC character should cause this fault; no character data available.
+   		return CFont::ENoCharacterData;
+ 	case 'W':
+ 		// We want 'W' to have side-bearings
+ 		CFont::DoGetCharacterData(aCode, aMetrics, aBitmap, aBitmapSize);
+ 		width = aMetrics.Width();
+ 		aMetrics.SetHorizBearingX(-1);
+ 		aMetrics.SetWidth(width + 2);
+ 		return CFont::ECharacterWidthOnly ;
+ 	case 0x0648:
+ 		// Arabic Waw-- has massive left side-bearing
+ 		CFont::DoGetCharacterData(aCode, aMetrics, aBitmap, aBitmapSize);
+ 		width = aMetrics.Width();
+ 		aMetrics.SetHorizBearingX(-5);
+ 		aMetrics.SetWidth(width + 5);
+ 		return CFont::ECharacterWidthOnly ;
+	case 'X':
+		// We want 'X' to have a left side-bearing only
+		CFont::DoGetCharacterData(aCode, aMetrics, aBitmap, aBitmapSize);
+		aMetrics.SetHorizBearingX(-1);
+		return CFont::ECharacterWidthOnly ;
+	case 0x05EA:
+		// We want Hebrew Tav to have a +ve left side-bearing
+		CFont::DoGetCharacterData(aCode, aMetrics, aBitmap, aBitmapSize);
+		aMetrics.SetHorizBearingX(1);
+		return CFont::ECharacterWidthOnly ;
+	case 0x304B:
+		// We want Hiragana Ka to have a top end-bearing
+		CFont::DoGetCharacterData(aCode, aMetrics, aBitmap, aBitmapSize);
+		aMetrics.SetVertBearingY(-1);
+		return CFont::EAllCharacterData ;
+	case 0x0020:
+		CFont::DoGetCharacterData(aCode, aMetrics, aBitmap, aBitmapSize);
+		aMetrics.SetWidth(0);
+		aMetrics.SetHeight(0);
+		aMetrics.SetVertAdvance(0);
+		return CFont::ECharacterWidthOnly ;	
+	default:
+		return CFont::DoGetCharacterData(aCode, aMetrics, aBitmap, aBitmapSize);
+		}
+	}