/*

* 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: 

* MTmTextLayoutForwarder functions.

*

*/

#include "TAGMA.H"

#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS

#include "TAGMA_INTERNAL.H"

#endif

/**

Return the number of lines in the text.

*/

EXPORT_C TInt MTmTextLayoutForwarder::Lines() const

	{

	return TextLayout().Lines();

	}

/**

Return the number of paragraphs in the text.

*/

EXPORT_C TInt MTmTextLayoutForwarder::Paragraphs() const

	{

	return TextLayout().Paragraphs();

	}

/**

Return the displayed form of the text for a particular line. See CTmLayout::GetDisplayedText for details.

*/

EXPORT_C TBool MTmTextLayoutForwarder::GetDisplayedText(TInt aLineNumber,TDes& aText,TInt& aNeeded) const

	{

	return TextLayout().GetDisplayedText(aLineNumber,aText,aNeeded);

	}

/**

Get the minimum size of the formatted text. See CTmTextLayout::GetMinimumLayoutSizeL for details.

*/

EXPORT_C void MTmTextLayoutForwarder::GetMinimumLayoutSizeL(TInt aWrapWidth,TSize& aSize) const

	{

	TextLayout().GetMinimumLayoutSizeL(aWrapWidth,aSize);

	}

/**

Get the minimum size of the formatted text. See CTmTextLayout::GetMinimumLayoutSizeL for details.

*/

EXPORT_C void MTmTextLayoutForwarder::GetMinimumLayoutSizeL(TInt aWrapWidth,TBool aAllowLegalLineBreaksOnly,TSize& aSize) const

	{

	TextLayout().GetMinimumLayoutSizeL(aWrapWidth,aAllowLegalLineBreaksOnly,aSize);

	}

/**

Return the first formatted character.

*/

EXPORT_C TInt MTmTextLayoutForwarder::StartChar() const

	{

	return TextLayout().StartChar();

	}

/**

Return the character after the last formatted character.

*/

EXPORT_C TInt MTmTextLayoutForwarder::EndChar() const

	{

	return TextLayout().EndChar();

	}

/**

Return the width in pixels of the formatted text, not including paragraph labels if present.

*/

EXPORT_C TInt MTmTextLayoutForwarder::LayoutWidth() const

	{

	return TextLayout().LayoutWidth();

	}

/**

Return the height in pixels of the formatted text.

*/

EXPORT_C TInt MTmTextLayoutForwarder::LayoutHeight() const

	{

	return TextLayout().LayoutHeight();

	}

EXPORT_C void MTmTextLayoutForwarder::DrawLayout(CGraphicsContext& aGc,const TPoint& aTopLeft,const TRect& aClipRect,

												 const TLogicalRgb* aDocBackground,TBool aDrawParBackground) const

	{

	TPoint origin;

	GetOrigin(origin);

	TextLayout().DrawLayout(aGc,aTopLeft + origin,aClipRect,aDocBackground,aDrawParBackground);

	}

EXPORT_C void MTmTextLayoutForwarder::DrawBackground(CGraphicsContext& aGc,const TPoint& aTopLeft,

													 const TRect& aClipRect,const TLogicalRgb& aBackground) const

	{

	TPoint origin;

	GetOrigin(origin);

	TextLayout().DrawBackground(aGc,aTopLeft + origin,aClipRect,aBackground);

	}

EXPORT_C void MTmTextLayoutForwarder::InvertLayout(CGraphicsContext& aGc,const TPoint& aTopLeft,

												   TInt aStartDocPos,TInt aEndDocPos)

	{

	TPoint origin;

	GetOrigin(origin);

	TextLayout().InvertLayout(aGc,aTopLeft + origin,aStartDocPos,aEndDocPos);

	}

EXPORT_C TBool MTmTextLayoutForwarder::FindDocPos(const TTmDocPosSpec& aDocPos,

	TTmPosInfo2& aPosInfo, TTmLineInfo& aLineInfo) const

	{

	TPoint origin;

	GetOrigin(origin);

	TBool result = TextLayout().FindDocPos(aDocPos,aPosInfo,aLineInfo);

	if (origin.iX || origin.iY)

		{

		FixUpLineInfo(aLineInfo,&origin);

		aPosInfo.iEdge += origin;

		}

	return result;

	}

/** @deprecated 7.0s */

EXPORT_C TBool MTmTextLayoutForwarder::FindDocPos(const TTmDocPos& aDocPos,TTmPosInfo& aPosInfo,

												  TTmLineInfo& aLineInfo) const

	{

	TTmDocPosSpec dp = aDocPos;

	TTmPosInfo2 pi;

	TBool r = FindDocPos(dp, pi, aLineInfo);

	aPosInfo = pi;

	return r;

	}

EXPORT_C TBool MTmTextLayoutForwarder::FindXyPos(const TPoint& aXyPos,

	TTmPosInfo2& aPosInfo,TTmLineInfo& aLineInfo) const

	{

	TPoint origin;

	GetOrigin(origin);

	TBool result = TextLayout().FindXyPos(aXyPos - origin,aPosInfo,aLineInfo);

	if (origin.iX || origin.iY)

		{

		FixUpLineInfo(aLineInfo,&origin);

		aPosInfo.iEdge += origin;

		}

	return result;

	}

EXPORT_C TBool MTmTextLayoutForwarder::FindXyPosWithDisambiguation(

	const TPoint& aXyPos, TTmPosInfo2& aPosLeft, TTmPosInfo2& aPosRight,

	TTmLineInfo& aLineInfo) const

	{

	TPoint origin;

	GetOrigin(origin);

	TBool result = TextLayout().FindXyPosWithDisambiguation(aXyPos - origin,

		aPosLeft, aPosRight, aLineInfo);

	if (origin.iX || origin.iY)

		{

		FixUpLineInfo(aLineInfo, &origin);

		aPosLeft.iEdge += origin;

		aPosRight.iEdge += origin;

		}

	return result;

	}

EXPORT_C TBool MTmTextLayoutForwarder::GetNextPosLeftWithDisambiguation(

	const TTmDocPosSpec& aDocPos,

	TTmPosInfo2& aPosLeft, TTmPosInfo2& aPosRight) const

	{

	TPoint origin;

	GetOrigin(origin);

	TBool result = TextLayout().GetNextPosLeftWithDisambiguation(aDocPos,

		aPosLeft, aPosRight);

	if (origin.iX || origin.iY)

		{

		aPosLeft.iEdge += origin;

		aPosRight.iEdge += origin;

		}

	return result;

	}

EXPORT_C TBool MTmTextLayoutForwarder::GetNextPosRightWithDisambiguation(

	const TTmDocPosSpec& aDocPos,

	TTmPosInfo2& aPosLeft, TTmPosInfo2& aPosRight) const

	{

	TPoint origin;

	GetOrigin(origin);

	TBool result = TextLayout().GetNextPosRightWithDisambiguation(aDocPos,

		aPosLeft, aPosRight);

	if (origin.iX || origin.iY)

		{

		aPosLeft.iEdge += origin;

		aPosRight.iEdge += origin;

		}

	return result;

	}

/** @deprecated 7.0s */

EXPORT_C TBool MTmTextLayoutForwarder::FindXyPos(const TPoint& aXyPos,TTmPosInfo& aPosInfo,TTmLineInfo& aLineInfo) const

	{

	TTmPosInfo2 pi;

	TBool r = FindXyPos(aXyPos, pi, aLineInfo);

	aPosInfo = pi;

	return r;

	}

EXPORT_C TBool MTmTextLayoutForwarder::DocPosToLine(

	const TTmDocPosSpec& aDocPos, TTmLineInfo& aLineInfo) const

	{

	TBool result = TextLayout().DocPosToLine(aDocPos,aLineInfo);

	FixUpLineInfo(aLineInfo);

	return result;

	}

/** @deprecated 7.0s */

EXPORT_C TBool MTmTextLayoutForwarder::DocPosToLine(const TTmDocPos& aDocPos,TTmLineInfo& aLineInfo) const

	{

	TTmDocPosSpec dp = aDocPos;

	return DocPosToLine(dp, aLineInfo);

	}

EXPORT_C TBool MTmTextLayoutForwarder::LineNumberToLine(TInt aLineNumber,TTmLineInfo& aLineInfo) const

	{

	TBool result = TextLayout().LineNumberToLine(aLineNumber,aLineInfo);

	FixUpLineInfo(aLineInfo);

	return result;

	}

EXPORT_C TBool MTmTextLayoutForwarder::ParNumberToLine(TInt aParNumber,TInt aLineInPar,TTmLineInfo& aLineInfo) const

	{

	TBool result = TextLayout().ParNumberToLine(aParNumber,aLineInPar,aLineInfo);

	FixUpLineInfo(aLineInfo);

	return result;

	}

EXPORT_C TBool MTmTextLayoutForwarder::YPosToLine(TInt aYPos,TTmLineInfo& aLineInfo) const

	{

	TPoint origin;

	GetOrigin(origin);

	TBool result = TextLayout().YPosToLine(aYPos - origin.iY,aLineInfo);

	if (origin.iX || origin.iY)

		FixUpLineInfo(aLineInfo,&origin);

	return result;

	}

EXPORT_C TInt MTmTextLayoutForwarder::WidthOfWidestLine(TInt aTop,TInt aBottom) const

	{

	TPoint origin;

	GetOrigin(origin);

	aTop -= origin.iY;

	aBottom -= origin.iY;

	return TextLayout().WidthOfWidestLine(aTop,aBottom);

	}

EXPORT_C void MTmTextLayoutForwarder::HorizontalExtremes(

	TInt &aLeft, TInt &aRight, TInt aTopY, TInt aBottomY) const

	{

	TPoint origin;

	GetOrigin(origin);

	aTopY -= origin.iY;

	aBottomY -= origin.iY;

	TextLayout().HorizontalExtremes(aLeft, aRight, aTopY, aBottomY);

	if (aLeft != KMaxTInt)

		aLeft += origin.iX;

	if (aRight != KMinTInt)

		aRight += origin.iX;

	}

EXPORT_C TBool MTmTextLayoutForwarder::GetNextVisualCursorPos(

	const TTmDocPosSpec& aDocPos, TTmPosInfo2& aInfo, TBool aToLeft) const

	{

	TBool result = TextLayout().GetNextVisualCursorPos(aDocPos,aInfo,aToLeft);

	TPoint origin;

	GetOrigin(origin);

	aInfo.iEdge += origin;

	return result;

	}

/** deprecated 7.0s */

EXPORT_C TBool MTmTextLayoutForwarder::GetNextVisualCursorPos(const TTmDocPos& aDocPos,TTmPosInfo& aInfo,

															  TBool aToLeft) const

	{

	TBool result = TextLayout().GetNextVisualCursorPos(aDocPos,aInfo,aToLeft);

	TPoint origin;

	GetOrigin(origin);

	aInfo.iEdge += origin;

	return result;

	}

EXPORT_C TBool MTmTextLayoutForwarder::GetCursor(const TTmDocPosSpec& aDocPos,

	TTmCursorPlacement aPlacement, TTmLineInfo& aLineInfo, TPoint& aOrigin,

	TInt& aWidth, TInt& aAscent, TInt& aDescent) const

	{

	TBool result = TextLayout().GetCursor(aDocPos, aPlacement, aLineInfo,

		aOrigin, aWidth, aAscent, aDescent);

	if (result)

		{

		TPoint origin;

		GetOrigin(origin);

		if (origin.iX || origin.iY)

			{

			aOrigin += origin;

			FixUpLineInfo(aLineInfo,&origin);

			}

		}

	return result;

	}

/** @deprecated 7.0s */

EXPORT_C TBool MTmTextLayoutForwarder::GetCursor(const TTmDocPos& aDocPos,TTmCursorPlacement aPlacement,

		TTmLineInfo& aLineInfo,TPoint& aOrigin,TInt& aWidth,TInt& aAscent,TInt& aDescent) const

	{

	TBool result = TextLayout().GetCursor(aDocPos,aPlacement,aLineInfo,aOrigin,aWidth,aAscent,aDescent);

	if (result)

		{

		TPoint origin;

		GetOrigin(origin);

		if (origin.iX || origin.iY)

			{

			aOrigin += origin;

			FixUpLineInfo(aLineInfo,&origin);

			}

		}

	return result;

	}

void MTmTextLayoutForwarder::FixUpLineInfo(TTmLineInfo& aInfo,const TPoint* aOrigin) const

	{

	TPoint origin;

	if (aOrigin)

		origin = *aOrigin;

	else

		GetOrigin(origin);

	if (origin.iX || origin.iY)

		{

		aInfo.iInnerRect.Move(origin);

		aInfo.iOuterRect.Move(origin);

		aInfo.iBaseline += origin.iY;

		aInfo.iParTop += origin.iY;

		}

	}

EXPORT_C void MTmTextLayoutForwarder::GetOrigin(TPoint& aPoint) const

	{

	aPoint.iX = aPoint.iY = 0;

	}