/*

* Copyright (c) 2006-2009 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 "TMSTD.H"

#include "frmUtils.h"

/**

Find the next bidirectional category and the next strong bidirectional category

from the text.

@param aText What to look at.

@param aStartPosOfNextLine Where to start looking.

*/

void TBidirectionalEndOfLineContext::Set(RTmTextCache& aText, TInt aStartPosOfNextLine)

	{

	TInt documentLength = aText.Source().DocumentLength();

	if (documentLength <= aStartPosOfNextLine)

		{

		iFirstCategory = iFirstStrongCategory = TChar::EOtherNeutral;

		return;

		}

	iFirstCategory = BdCategory(aText.Char(aStartPosOfNextLine));

	// Only search for the first strong category if the text, or part of the text following aStartPosOfNextLine

	// has not already been searched through

	if (aStartPosOfNextLine >= iPositionOfLastStrongCategory || aStartPosOfNextLine < iStartPosOfThisLine)

		iFirstStrongCategory = FirstStrongCategoryInParagraph(aStartPosOfNextLine, aText, iPositionOfLastStrongCategory, iStartPosOfThisLine);

	iStartPosOfThisLine = aStartPosOfNextLine;

	}

void TBidirectionalEndOfLineContext::ExternalizeL(RWriteStream& aDest)

	{

	aDest.WriteInt8L(iFirstCategory);

	aDest.WriteInt8L(iFirstStrongCategory);

	}

void TBidirectionalEndOfLineContext::InternalizeL(RReadStream& aSource)

	{

	iFirstCategory = static_cast<TChar::TBdCategory>(aSource.ReadInt8L());

	iFirstStrongCategory = static_cast<TChar::TBdCategory>(aSource.ReadInt8L());

	iPositionOfLastStrongCategory = 0;

	iStartPosOfThisLine = 0;

	}

void TBidirectionalContext::InternalizeL(RReadStream& aSource)

	{

	TBidirectionalState::InternalizeL(aSource);

	iEndOfLine.InternalizeL(aSource);

	}