--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/textrendering/textformatting/tagma/TMTEXT.CPP	Tue Feb 02 02:02:46 2010 +0200
@@ -0,0 +1,729 @@
+/*
+* Copyright (c) 1999-2009 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: 
+*
+*/
+
+
+#include "TmText.h"
+#include <txtfrmat.h>
+#include <txtetext.h>
+#include "TMSTD.H"
+
+/**
+ * Creates a CTmText object using the specified device map and formatting parameters.
+ */
+EXPORT_C CTmText* CTmText::NewL(MGraphicsDeviceMap& aDevice,const TTmFormatParamBase& aFormatParam)
+	{
+	CTmText* t = new(ELeave) CTmText;
+	CleanupStack::PushL(t);
+	t->iImp = new(ELeave) CTmTextImp(aDevice,aFormatParam);
+	CleanupStack::Pop();
+	return t;
+	}
+
+/**
+ * Creates a CTmText object using the specified device map and formatting
+ * parameters that have default values (as in the default constructor for
+ * TTmFormatParamBase) apart from the wrap width and flags. The values of the
+ * flags are those used in for TTmFormatParamBase::iFlags.
+ */
+EXPORT_C CTmText* CTmText::NewL(MGraphicsDeviceMap& aDevice,TInt aWrapWidth,TInt aFlags)
+	{
+	TTmFormatParamBase param;
+	param.iWrapWidth = aWrapWidth;
+	param.iFlags = aFlags;
+	return NewL(aDevice,param);
+	}
+
+CTmText::CTmText()
+	{
+	}
+/**
+ * Destroys a CTmText object.
+ */
+EXPORT_C CTmText::~CTmText()
+	{
+	delete iImp;
+	}
+
+/**
+ * Inserts the text aText at the document position aPos. The other arguments
+ * are all pointers which have default values of null. The first two,
+ * aCharFormat and aParFormat, specify the format for the inserted text. If
+ * either is null the format immediately before the insertion point is used.
+ *
+ * Put the coordinates of the area that has been reformatted and needs to be
+ * redrawn, relative to the origin of the CText object, in aRedrawRect. Put the
+ * amount by which the text after the redrawn text needs to be scrolled up or
+ * down in aScroll: this is the amount by which the reformatted text has
+ * changed in height, and thus is positive if the text after the redrawn text
+ * has increased in height, which is usually, but not always, the case.
+ */
+EXPORT_C void CTmText::InsertL(TInt aPos,const TDesC& aText,
+	const TTmCharFormat* aCharFormat,const RTmParFormat* aParFormat,
+	TRect* aRedrawRect,TInt* aScroll)
+	{
+	iImp->InsertL(aPos,aText,aCharFormat,aParFormat,aRedrawRect,aScroll);
+	}
+
+/**
+ * Retrieves the current formatting parameters.
+ */
+EXPORT_C void CTmText::GetFormat(TTmFormatParamBase& aFormatParam) const
+	{
+	iImp->GetFormat(aFormatParam);
+	}
+
+/**
+ * Sets the wrap width and reformat the text.
+ */
+EXPORT_C void CTmText::SetWrapWidthL(TInt aWrapWidth)
+	{
+	iImp->SetWrapWidthL(aWrapWidth);
+	}
+
+/**
+ * Set the formatting parameters and reformat the text.
+ */
+EXPORT_C void CTmText::ChangeFormatL(const TTmFormatParamBase& aFormatParam)
+	{
+	iImp->ChangeFormatL(aFormatParam);
+	}
+
+/**
+ * Deletes all the text.
+ */
+EXPORT_C void CTmText::Clear()
+	{
+	iImp->Clear();
+	}
+
+/**
+ * Specifies custom drawing or layout for the object, or if aCustom is NULL,
+ * removes any customization. Reformats the object according to the new
+ * customized layout. See the MTmCustom class for details. Custom drawing
+ * allows background graphics to be drawn, and custom layout allows, among
+ * other things, control over the way line height is calculated and special
+ * characters are displayed.
+ */
+EXPORT_C void CTmText::CustomizeL(const MTmCustom* aCustom)
+	{
+	iImp->CustomizeL(aCustom);
+	}
+
+/**
+ * Returns the number of bytes of memory used by a CTmText object, allowing 8
+ * bytes overhead per heap allocation.
+*/
+EXPORT_C TInt CTmText::MemoryUsed() const
+	{
+	return sizeof(*this) + iImp->MemoryUsed() + 8;
+	}
+
+/**
+ * Returns a const reference to the CTmTextLayout object owned by this object.
+ * This function implements MTmTextLayoutForwarder::TextLayout.
+ */
+const CTmTextLayout& CTmText::TextLayout() const
+	{
+	return iImp->TextLayout();
+	}
+
+template<class T> TInt RRefCountedArray<T>::Insert(const T& aEntry,TInt& aIndex)
+	{
+	//+ replace this linear search with a binary search
+	int n = iArray.Count();
+	for (int i = 0; i < n; i++)
+		if (aEntry == iArray[i].iEntry)
+			{
+			iArray[i].iRefCount++;
+			aIndex = i;
+			return KErrNone;
+			}
+	aIndex = n;
+	TCountedEntry new_entry;
+	new_entry.iRefCount = 1;
+	int error = iArray.Append(new_entry);
+	if (!error)
+		error = iArray[iArray.Count() - 1].iEntry.Copy(aEntry);
+	return error;
+	}
+
+template<class T> void RRefCountedArray<T>::Remove(TInt aIndex)
+	{
+	if (--iArray[aIndex].iRefCount == 0)
+		iArray.Remove(aIndex);
+	}
+
+template<class T> TInt RRefCountedArray<T>::MemoryUsed() const
+	{
+	TInt bytes = sizeof(*this);
+	if (iArray.Count())
+		bytes += User::AllocLen(&iArray[0]) + 8;
+	return bytes;
+	} 
+
+CTmTextImp::~CTmTextImp()
+	{
+	iCharFormatRun.Close();
+	iParFormatRun.Close();
+	iCharFormat.Close();
+	for (int i = 0; i < iParFormat.Count(); i++)
+		iParFormat[i].Close();
+	iParFormat.Close();
+	}
+
+void CTmTextImp::InsertL(TInt aPos,const TDesC& aText,
+						 const TTmCharFormat* aCharFormat,const RTmParFormat* aParFormat,
+						 TRect* aRedrawRect,TInt* aScroll)
+	{
+	__ASSERT_DEBUG(0 <= aPos, TmPanic(EBadArg));
+
+	// Don't insert zero-length text.
+	if (aText.Length() == 0)
+		return;
+
+	// Clamp aPos to the end of the document.
+	if (iTextLayout.EndChar() <= aPos)
+		aPos = Max(0,iTextLayout.EndChar() - 1);
+
+	// If the document is empty and character or paragraph format is unspecified, use a default format.
+	TTmCharFormat default_char_format;
+	default_char_format.iFontSpec.SetHeight(12 * 20);	// set height, which must be in twips, to 12pt
+	RTmParFormat default_par_format;
+	if (iText.Length() == 0)
+		{
+		if (aCharFormat == NULL)
+			aCharFormat = &default_char_format;
+		if (aParFormat == NULL)
+			aParFormat = &default_par_format;
+		}
+
+	// Insert the character format.
+	int error = 0;
+	int char_format_index = -1;
+	if (aCharFormat)
+		error = iCharFormat.Insert((TMyCharFormat&)*aCharFormat,char_format_index);
+	
+	// Insert the paragraph format.
+	int par_format_index = -1;
+	if (!error && aParFormat)
+		error = iParFormat.Insert((RMyParFormat&)*aParFormat,par_format_index);
+
+	// Insert the character format run.
+	if (!error)
+		error = iCharFormatRun.Insert(aPos,aText.Length(),char_format_index);
+
+	// If the paragraph format has changed extend it to the paragraph bounds.
+	int old_par_format_index = -1;
+	if (!error && iText.Length() > 0)
+		{
+		if (par_format_index != -1)
+			old_par_format_index = iParFormatRun.Index(aPos);
+		if (par_format_index != old_par_format_index)
+			{
+			int par_start = ParagraphStart(aPos);
+			int par_end = ParagraphEnd(aPos);
+			if (iText.Length() == par_end - 1)
+				--par_end;
+			error = iParFormatRun.Set(par_start, par_end - par_start,
+				par_format_index);
+			}
+		}
+
+	// Insert the paragraph format run.
+	if (!error)
+		error = iParFormatRun.Insert(aPos,aText.Length(),par_format_index);
+
+	// Insert the text.
+	if (!error)
+		{
+		TRAP(error,iText.InsertL(aPos,aText));
+		}
+
+	default_par_format.Close();
+
+	User::LeaveIfError(error);
+
+	if (iTextLayout.EndChar() > 0)
+		{
+		TTmReformatParam reformat_param;
+		reformat_param.iStartChar = aPos;
+		reformat_param.iOldLength = 0;
+		reformat_param.iNewLength = aText.Length();
+		reformat_param.iParFormatChanged = par_format_index != old_par_format_index;
+		TTmReformatResult result;
+		iTextLayout.FormatL(iFormatParam,reformat_param,result);
+		if (aRedrawRect)
+			*aRedrawRect = result.iRedrawRect;
+		if (aScroll)
+			*aScroll = result.iHeightChange;
+		}
+	else
+		{
+		iTextLayout.SetTextL(*this,iFormatParam);
+		if (aRedrawRect)
+			*aRedrawRect = TRect(0,0,iTextLayout.LayoutWidth(),iTextLayout.LayoutHeight());
+		if (aScroll)
+			*aScroll = 0;
+		}
+	}
+
+void CTmTextImp::ChangeFormatL(const TTmFormatParamBase& aFormatParam)
+	{
+	iFormatParam = aFormatParam;
+	ReformatL();
+	}
+
+void CTmTextImp::ReformatL()
+	{
+	if (iText.Length() > 0)
+		iTextLayout.SetTextL(*this,iFormatParam);
+	}
+
+void CTmTextImp::Clear()
+	{
+	iText.Reset();
+	iCharFormatRun.Reset();
+	iParFormatRun.Reset();
+	iCharFormat.Reset();
+	for (int i = 0; i < iParFormat.Count(); i++)
+		iParFormat[i].Close();
+	iParFormat.Reset();
+	iTextLayout.Clear();
+	}
+
+void CTmTextImp::CustomizeL(const MTmCustom* aCustom)
+	{
+	iCustom = aCustom;
+	ReformatL();
+	}
+
+TInt CTmTextImp::MemoryUsed() const
+	{
+	return sizeof(*this) +
+		   iText.MemoryUsed() - sizeof(iText) +
+		   iCharFormatRun.MemoryUsed() - sizeof(iCharFormatRun) +
+		   iParFormatRun.MemoryUsed() - sizeof(iParFormatRun) +
+		   iCharFormat.MemoryUsed() - sizeof(iCharFormat) +
+		   iParFormat.MemoryUsed() - sizeof(iParFormat) +
+		   iTextLayout.MemoryUsed() - sizeof(iTextLayout);
+	}
+
+MGraphicsDeviceMap& CTmTextImp::FormatDevice() const
+	{
+	return iDevice;
+	}
+
+MGraphicsDeviceMap& CTmTextImp::InterpretDevice() const
+	{
+	return iDevice;
+	}
+
+TInt CTmTextImp::DocumentLength() const
+	{
+	return iText.Length();
+	}
+
+void CTmTextImp::GetText(TInt aPos,TPtrC& aText,TTmCharFormat& aFormat) const
+	{
+	static const TText end_par = CEditableText::EParagraphDelimiter;
+	TInt index = 0;
+	TInt textLength = iText.Length();
+	__ASSERT_DEBUG(aPos <= textLength + 1, TmPanic(EIndexOutOfRange));
+	if (aPos < textLength)
+		{
+		TPtrC p = iText.PtrC(aPos);
+		TInt pLength = p.Length();
+		TRun charRun;
+		TInt charRunStart = iCharFormatRun.RunAndStartPos(aPos, charRun);
+		TInt remainingLength = charRunStart + charRun.iLength - aPos;
+		aText.Set(p.Ptr(), remainingLength < pLength? remainingLength : pLength);
+		index = charRun.iIndex;
+		}
+	else if (aPos == textLength)
+		{
+		aText.Set(&end_par,1);
+		if (0 < aPos)
+			index = iCharFormatRun.Index(aPos - 1);
+		else
+ 			{
+			TTmCharFormat d;
+			aFormat = d;
+			return;
+			}
+		}
+	else
+		{
+		aText.Set(0, 0);
+		return;
+		}
+	aFormat = iCharFormat[index];
+	}
+
+void CTmTextImp::GetParagraphFormatL(TInt aPos,RTmParFormat& aFormat) const
+	{
+	__ASSERT_DEBUG(0 <= aPos && aPos <= iText.Length(), TmPanic(EBadArg));
+	TInt textLength = iText.Length();
+	if (0 == textLength)
+		{
+		RTmParFormat d;
+		CleanupClosePushL(d);
+		aFormat.CopyL(d);
+		CleanupStack::PopAndDestroy(&d);
+		return;
+		}
+	if (aPos != textLength)
+		++aPos;
+	aFormat.CopyL(iParFormat[iParFormatRun.Index(aPos)]);
+	}
+
+TInt CTmTextImp::ParagraphStart(TInt aPos) const
+	{
+	while (aPos > 0)
+		{
+		TPtrC text = iText.BackPtrC(aPos);
+		const TText *p = text.Ptr();
+		const TText *q = p + text.Length();
+		while (p < q)
+			{
+			q--;
+			aPos--;
+			if (*q == CEditableText::EParagraphDelimiter)
+				return aPos + 1;
+			}
+		}
+	return 0;
+	}
+
+TRgb CTmTextImp::SystemColor(TUint aColorIndex,TRgb aDefaultColor) const
+	{
+	if (iCustom)
+		return iCustom->SystemColor(aColorIndex,aDefaultColor);
+	else
+		return MTmSource::SystemColor(aColorIndex,aDefaultColor);
+	}
+
+TInt CTmTextImp::Stretch(TUint aChar) const
+	{
+	if (iCustom)
+		return iCustom->Stretch(aChar);
+	else
+		return MTmSource::Stretch(aChar);
+	}
+
+TUint CTmTextImp::Map(TUint aChar) const
+	{
+	if (iCustom)
+		return iCustom->Map(aChar);
+	else
+		return MTmSource::Map(aChar);
+	}
+
+void CTmTextImp::SetLineHeight(const TLineHeightParam& aParam,TInt& aAscent,TInt& aDescent) const
+	{
+	if (iCustom)
+		iCustom->SetLineHeight(aParam,aAscent,aDescent);
+	else
+		MTmSource::SetLineHeight(aParam,aAscent,aDescent);
+	}
+
+void CTmTextImp::DrawBackground(CGraphicsContext& aGc,const TPoint& aTextLayoutTopLeft,const TRect& aRect,
+								const TLogicalRgb& aBackground,TRect& aRectDrawn) const
+	{
+	if (iCustom)
+		iCustom->DrawBackground(aGc,aTextLayoutTopLeft,aRect,aBackground,aRectDrawn);
+	else
+		MTmSource::DrawBackground(aGc,aTextLayoutTopLeft,aRect,aBackground,aRectDrawn);
+	}
+
+void CTmTextImp::DrawLineGraphics(CGraphicsContext& aGc,const TPoint& aTextLayoutTopLeft,const TRect& aRect,
+								  const TTmLineInfo& aLineInfo) const
+	{
+	if (iCustom)
+		iCustom->DrawLineGraphics(aGc,aTextLayoutTopLeft,aRect,aLineInfo);
+	else
+		MTmSource::DrawLineGraphics(aGc,aTextLayoutTopLeft,aRect,aLineInfo);
+	}
+
+void CTmTextImp::DrawText(CGraphicsContext& aGc,const TPoint& aTextLayoutTopLeft,const TRect& aRect,
+						  const TTmLineInfo& aLineInfo,const TTmCharFormat& aFormat,
+						  const TDesC& aText,const TPoint& aTextOrigin,TInt aExtraPixels) const
+	{
+	if (iCustom)
+		iCustom->DrawText(aGc,aTextLayoutTopLeft,aRect,aLineInfo,aFormat,aText,aTextOrigin,aExtraPixels);
+	else
+		MTmSource::DrawText(aGc,aTextLayoutTopLeft,aRect,aLineInfo,aFormat,aText,aTextOrigin,aExtraPixels);
+	}
+
+TInt CTmTextImp::RRunArray::SplitRun(TInt aRunIndex,TInt aOffset)
+	{
+	TRun& run = iRun[aRunIndex];
+	TRun new_run;
+	new_run.iIndex = run.iIndex;
+	new_run.iLength = run.iLength - aOffset;
+	int error = iRun.Insert(new_run, aRunIndex + 1);
+	if (!error)
+		run.iLength = aOffset;
+	return error;
+	}
+
+/*
+Find the run containing aPos. The position at the end of a run is in the run.
+The position at the start of a run is NOT in the run, but in the preceding run, if any.
+*/
+void CTmTextImp::RRunArray::FindRun(TInt aPos,TInt& aRunIndex,TInt& aOffset) const
+	{
+#ifdef _DEBUG
+	TInt error =
+#endif
+	FindRunNonstrict(aPos, aRunIndex, aOffset);
+	__ASSERT_DEBUG(!error, TmPanic(ETextRunNotFound));
+	}
+
+TInt CTmTextImp::RRunArray::FindRunNonstrict(TInt aPos,TInt& aRunIndex,TInt& aOffset) const
+	{
+	int n = iRun.Count();
+	int start = 0;
+	int end = 0;
+	for (int i = 0; i < n; i++)
+		{
+		__ASSERT_DEBUG(0 <= iRun[i].iLength, TmPanic(EInvalidTextRunLength));
+		__ASSERT_DEBUG(0 <= iRun[i].iIndex, TmPanic(EInvalidTextRunIndex));
+		end += iRun[i].iLength;
+		if (end >= aPos)
+			{
+			aRunIndex = i;
+			aOffset = aPos - start;
+			return KErrNone;
+			}
+		start = end;
+		}
+
+	aRunIndex = aOffset = -1;
+	return KErrNotFound;
+	}
+
+/* Find the latest run that starts less than or equal to aPos. Return it
+ * in aRunOut, and return its start position.
+ */
+TInt CTmTextImp::RRunArray::RunAndStartPos(TInt aPos, TRun& aRunOut) const
+	{
+	TInt runs = iRun.Count();
+	__ASSERT_DEBUG(0 < runs, TmPanic(ETextRunNotFound));
+	TInt start = 0;
+	TInt end = 0;
+	for (TInt i = 0; i != runs && end <= aPos; ++i)
+		{
+		aRunOut = iRun[i];
+		start = end;
+		end = start + aRunOut.iLength;
+		}
+	return start;
+	}
+
+// Insert a run of length aLength and attribute aIndex at aPos; if aIndex is < 0, use the index at aPos.
+TInt CTmTextImp::RRunArray::Insert(TInt aPos,TInt aLength,TInt aIndex)
+	{
+	__ASSERT_DEBUG(0 < aLength, TmPanic(EInvalidTextRunLength));
+	__ASSERT_DEBUG(0 <= aIndex || 0 < iRun.Count(), TmPanic(EParagraphFormatRequired));
+
+	int error = 0;
+	TRun new_run;
+	if (iRun.Count() == 0)
+		{
+		new_run.iLength = 0;
+		new_run.iIndex = aIndex;
+		error = iRun.Append(new_run);
+		if (error)
+			return error;
+		}
+
+	// Find the run; see if the index matches; if on a join between runs, check both.
+	int run_index, offset;
+	FindRun(aPos,run_index,offset);
+	if (offset == iRun[run_index].iLength && iRun[run_index].iIndex != aIndex && run_index < iRun.Count() - 1)
+		{
+		run_index++;
+		offset = 0;
+		}
+	TRun& run = iRun[run_index];
+
+	__ASSERT_DEBUG(0 <= offset && offset <= run.iLength, TmPanic(EInvariant));
+
+	// If aIndex is negative, it means don't change the attribute.
+	if (aIndex < 0)
+		aIndex = run.iIndex;
+
+	// No need to create a new run; just extend the existing one
+	if (run.iIndex == aIndex)
+		run.iLength += aLength;
+
+	// Split the run if necessary, then add a new run.
+	else
+		{
+		if (run.iLength == offset)
+			++run_index;
+		else if (offset != 0)
+			{
+			error = SplitRun(run_index,offset);
+			run_index++;
+			}
+		if (!error)
+			{
+			new_run.iIndex = aIndex;
+			new_run.iLength = aLength;
+			error = iRun.Insert(new_run, run_index);
+			}
+		}
+
+	return error;
+	}
+
+TInt CTmTextImp::RRunArray::Set(TInt aPos,TInt aLength,TInt aIndex)
+	{
+	__ASSERT_DEBUG(0 <= aLength, TmPanic(EInvalidTextRunLength));
+	__ASSERT_DEBUG(0 <= aIndex, TmPanic(EInvalidTextRunIndex));
+
+	if (aLength == 0)
+		return KErrNone;
+
+	// Find the run start.
+	int start_run_index, start_run_offset;
+	FindRun(aPos,start_run_index,start_run_offset);
+
+	// Adjust the run start if there is no change to the attribute; return if this eliminates the range to be set.
+	if (iRun[start_run_index].iIndex == aIndex)
+		{
+		int n = iRun[start_run_index].iLength - start_run_offset;
+		aPos += n;
+		aLength -= n;
+		if (aLength <= 0)
+			return KErrNone;
+		}
+
+	// Find the run end.
+	int end_run_index, end_run_offset;
+	FindRun(aPos + aLength,end_run_index,end_run_offset);
+
+	// Adjust the run end if there is no change to the attribute; return if this eliminates the range to be set.
+	if (iRun[end_run_index].iIndex == aIndex)
+		{
+		aLength -= end_run_offset;
+		if (aLength <= 0)
+			return KErrNone;
+		}
+
+	// Determine the change in the number of runs. The maximum increase is 2.
+	int runs_increase = start_run_index - end_run_index + 2;
+
+	// Insert extra runs if needed.
+	int error = KErrNone;
+	if (runs_increase > 0)
+		{
+		error = SplitRun(start_run_index,start_run_offset);
+		runs_increase--;
+		if (start_run_index == end_run_index)
+			end_run_offset -= start_run_offset;
+		end_run_index++;
+		}
+	if (!error && runs_increase > 0)
+		{
+		error = SplitRun(end_run_index,end_run_offset);
+		end_run_index++;
+		end_run_offset = 0;
+		runs_increase--;
+		}
+	if (!error)
+		{
+		// Delete unneeded runs.
+		while (runs_increase < 0)
+			{
+			iRun.Remove(start_run_index + 2);
+			end_run_index--;
+			++runs_increase;
+			}
+
+		// Adjust the size of the start run.
+		iRun[start_run_index].iLength = start_run_offset;
+
+		// Set the run after the start run to the new attribute.
+		TRun& run = iRun[start_run_index + 1];
+		run.iLength = aLength;
+		run.iIndex = aIndex;
+
+		// Adjust the size of the end run.
+		iRun[end_run_index].iLength -= end_run_offset;
+		}
+
+	return error;
+	}
+
+void CTmTextImp::RRunArray::Delete(TInt aPos,TInt aLength)
+	{
+	__ASSERT_DEBUG(0 <= aLength, TmPanic(EInvalidTextRunLength));
+
+	if (aLength == 0)
+		return;
+
+	// Find the start.
+	int start_run_index, start_run_offset;
+	FindRun(aPos,start_run_index,start_run_offset);
+
+	// Find the end.
+	int end_run_index, end_run_offset;
+	FindRun(aPos + aLength,end_run_index,end_run_offset);
+
+	// If the runs are the same it's trivial.
+	if (start_run_index == end_run_index)
+		{
+		iRun[start_run_index].iLength -= (end_run_offset - start_run_offset);
+		return;
+		}
+
+	// Shorten the start and end runs and determine the range of runs to delete.
+	iRun[start_run_index].iLength = start_run_offset;
+	int first_deleted_run = start_run_index + 1;
+	if (start_run_offset == 0)
+		first_deleted_run--;
+	iRun[end_run_index].iLength -= end_run_offset;
+	int last_deleted_run = end_run_index - 1;
+	if (iRun[end_run_index].iLength == 0)
+		last_deleted_run++;
+
+	// Delete runs.
+	for (int i = first_deleted_run; i <= last_deleted_run; i++)
+		iRun.Remove(first_deleted_run);
+	}
+
+TInt CTmTextImp::RRunArray::Index(TInt aPos) const
+	{
+	int run_index, offset;
+	TInt error = FindRunNonstrict(aPos,run_index,offset);
+	return error? error : iRun[run_index].iIndex;
+	}
+
+TInt CTmTextImp::RRunArray::MemoryUsed() const
+	{
+	TInt bytes = sizeof(*this);
+	if (iRun.Count())
+		bytes += User::AllocLen(&iRun[0]) + 8;
+	return bytes;
+	} 
+
+EXPORT_C void CTmText::Spare1()
+	{
+	TmPanic(EUnimplemented);
+	}