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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <ndtxt.hxx>
#include <txatbase.hxx>
#include <paratr.hxx>
#include <vcl/outdev.hxx>
#include <editeng/paravertalignitem.hxx>
#include "pormulti.hxx"
#include <pagefrm.hxx>
#include <tgrditem.hxx>
#include "porfld.hxx"
#include "itrtxt.hxx"
#include <txtfrm.hxx>
void SwTextIter::CtorInitTextIter( SwTextFrame *pNewFrame, SwTextInfo *pNewInf )
{
assert(pNewFrame->GetPara());
CtorInitAttrIter( *pNewFrame->GetTextNodeFirst(), pNewFrame->GetPara()->GetScriptInfo(), pNewFrame );
SwTextNode const*const pNode = pNewFrame->GetTextNodeForParaProps();
m_pFrame = pNewFrame;
m_pInf = pNewInf;
m_aLineInf.CtorInitLineInfo( pNode->GetSwAttrSet(), *pNode );
m_nFrameStart = m_pFrame->getFrameArea().Pos().Y() + m_pFrame->getFramePrintArea().Pos().Y();
SwTextIter::Init();
// Order is important: only execute FillRegister if GetValue!=0
m_bRegisterOn = pNode->GetSwAttrSet().GetRegister().GetValue()
&& m_pFrame->FillRegister( m_nRegStart, m_nRegDiff );
}
void SwTextIter::Init()
{
m_pCurr = m_pInf->GetParaPortion();
m_nStart = m_pInf->GetTextStart();
m_nY = m_nFrameStart;
m_bPrev = true;
m_pPrev = nullptr;
m_nLineNr = 1;
}
void SwTextIter::CalcAscentAndHeight( sal_uInt16 &rAscent, sal_uInt16 &rHeight ) const
{
rHeight = GetLineHeight();
rAscent = m_pCurr->GetAscent() + rHeight - m_pCurr->Height();
}
SwLineLayout *SwTextIter::GetPrev_()
{
m_pPrev = nullptr;
m_bPrev = true;
SwLineLayout *pLay = m_pInf->GetParaPortion();
if( m_pCurr == pLay )
return nullptr;
while( pLay->GetNext() != m_pCurr )
pLay = pLay->GetNext();
return m_pPrev = pLay;
}
const SwLineLayout *SwTextIter::GetPrev()
{
if(! m_bPrev)
GetPrev_();
return m_pPrev;
}
const SwLineLayout *SwTextIter::Prev()
{
if( !m_bPrev )
GetPrev_();
if( m_pPrev )
{
m_bPrev = false;
m_pCurr = m_pPrev;
m_nStart = m_nStart - m_pCurr->GetLen();
m_nY = m_nY - GetLineHeight();
if( !m_pCurr->IsDummy() && !(--m_nLineNr) )
++m_nLineNr;
return m_pCurr;
}
else
return nullptr;
}
const SwLineLayout *SwTextIter::Next()
{
if(m_pCurr->GetNext())
{
m_pPrev = m_pCurr;
m_bPrev = true;
m_nStart = m_nStart + m_pCurr->GetLen();
m_nY += GetLineHeight();
if( m_pCurr->GetLen() || ( m_nLineNr>1 && !m_pCurr->IsDummy() ) )
++m_nLineNr;
return m_pCurr = m_pCurr->GetNext();
}
else
return nullptr;
}
const SwLineLayout *SwTextIter::NextLine()
{
const SwLineLayout *pNext = Next();
while( pNext && pNext->IsDummy() && pNext->GetNext() )
{
pNext = Next();
}
return pNext;
}
const SwLineLayout *SwTextIter::GetNextLine() const
{
const SwLineLayout *pNext = m_pCurr->GetNext();
while( pNext && pNext->IsDummy() && pNext->GetNext() )
{
pNext = pNext->GetNext();
}
return pNext;
}
const SwLineLayout *SwTextIter::GetPrevLine()
{
const SwLineLayout *pRoot = m_pInf->GetParaPortion();
if( pRoot == m_pCurr )
return nullptr;
const SwLineLayout *pLay = pRoot;
while( pLay->GetNext() != m_pCurr )
pLay = pLay->GetNext();
if( pLay->IsDummy() )
{
const SwLineLayout *pTmp = pRoot;
pLay = pRoot->IsDummy() ? nullptr : pRoot;
while( pTmp->GetNext() != m_pCurr )
{
if( !pTmp->IsDummy() )
pLay = pTmp;
pTmp = pTmp->GetNext();
}
}
// If nothing has changed, then there are only dummy's
return pLay;
}
const SwLineLayout *SwTextIter::PrevLine()
{
const SwLineLayout *pMyPrev = Prev();
if( !pMyPrev )
return nullptr;
const SwLineLayout *pLast = pMyPrev;
while( pMyPrev && pMyPrev->IsDummy() )
{
pLast = pMyPrev;
pMyPrev = Prev();
}
return pMyPrev ? pMyPrev : pLast;
}
void SwTextIter::Bottom()
{
while( Next() )
{
// nothing
}
}
void SwTextIter::CharToLine(TextFrameIndex const nChar)
{
while( m_nStart + m_pCurr->GetLen() <= nChar && Next() )
;
while( m_nStart > nChar && Prev() )
;
}
// 1170: takes into account ambiguities:
const SwLineLayout *SwTextCursor::CharCursorToLine(TextFrameIndex const nPosition)
{
CharToLine( nPosition );
if( nPosition != m_nStart )
bRightMargin = false;
bool bPrevious = bRightMargin && m_pCurr->GetLen() && GetPrev() &&
GetPrev()->GetLen();
if (bPrevious && nPosition && CH_BREAK == GetInfo().GetChar(nPosition - TextFrameIndex(1)))
bPrevious = false;
return bPrevious ? PrevLine() : m_pCurr;
}
sal_uInt16 SwTextCursor::AdjustBaseLine( const SwLineLayout& rLine,
const SwLinePortion* pPor,
sal_uInt16 nPorHeight, sal_uInt16 nPorAscent,
const bool bAutoToCentered ) const
{
if ( pPor )
{
nPorHeight = pPor->Height();
nPorAscent = pPor->GetAscent();
}
sal_uInt16 nOfst = rLine.GetRealHeight() - rLine.Height();
SwTextGridItem const*const pGrid(GetGridItem(m_pFrame->FindPageFrame()));
if ( pGrid && GetInfo().SnapToGrid() && pGrid->IsSquaredMode() )
{
const sal_uInt16 nRubyHeight = pGrid->GetRubyHeight();
const bool bRubyTop = ! pGrid->GetRubyTextBelow();
if ( GetInfo().IsMulti() )
// we are inside the GetCharRect recursion for multi portions
// we center the portion in its surrounding line
nOfst = ( m_pCurr->Height() - nPorHeight ) / 2 + nPorAscent;
else
{
// We have to take care for ruby portions.
// The ruby portion is NOT centered
nOfst = nOfst + nPorAscent;
if ( ! pPor || ! pPor->IsMultiPortion() ||
! static_cast<const SwMultiPortion*>(pPor)->IsRuby() )
{
// Portions which are bigger than on grid distance are
// centered inside the whole line.
//for text refactor
const sal_uInt16 nLineNet = rLine.Height() - nRubyHeight;
//const sal_uInt16 nLineNet = ( nPorHeight > nGridWidth ) ?
// rLine.Height() - nRubyHeight :
// nGridWidth;
nOfst += ( nLineNet - nPorHeight ) / 2;
if ( bRubyTop )
nOfst += nRubyHeight;
}
}
}
else
{
switch ( GetLineInfo().GetVertAlign() ) {
case SvxParaVertAlignItem::Align::Top :
nOfst = nOfst + nPorAscent;
break;
case SvxParaVertAlignItem::Align::Center :
OSL_ENSURE( rLine.Height() >= nPorHeight, "Portion height > Line height");
nOfst += ( rLine.Height() - nPorHeight ) / 2 + nPorAscent;
break;
case SvxParaVertAlignItem::Align::Bottom :
nOfst += rLine.Height() - nPorHeight + nPorAscent;
break;
case SvxParaVertAlignItem::Align::Automatic :
if ( bAutoToCentered || GetInfo().GetTextFrame()->IsVertical() )
{
// Vertical text has these cases to calculate the baseline:
// - Implicitly TB and RL: the origo is the top right corner, offset is the
// ascent.
// - (Implicitly TB and) LR: the origo is the top left corner, offset is the
// descent.
// - BT and LR: the origo is the bottom left corner, offset is the ascent.
if (GetInfo().GetTextFrame()->IsVertLR() && !GetInfo().GetTextFrame()->IsVertLRBT())
nOfst += rLine.Height() - ( rLine.Height() - nPorHeight ) / 2 - nPorAscent;
else
nOfst += ( rLine.Height() - nPorHeight ) / 2 + nPorAscent;
break;
}
[[fallthrough]];
case SvxParaVertAlignItem::Align::Baseline :
// base line
nOfst = nOfst + rLine.GetAscent();
break;
}
}
return nOfst;
}
void SwTextIter::TwipsToLine( const SwTwips y)
{
while( m_nY + GetLineHeight() <= y && Next() )
;
while( m_nY > y && Prev() )
;
}
// Local helper function to check, if pCurr needs a field rest portion:
static bool lcl_NeedsFieldRest( const SwLineLayout* pCurr )
{
const SwLinePortion *pPor = pCurr->GetNextPortion();
bool bRet = false;
while( pPor && !bRet )
{
bRet = pPor->InFieldGrp() && static_cast<const SwFieldPortion*>(pPor)->HasFollow();
if( !pPor->GetNextPortion() || !pPor->GetNextPortion()->InFieldGrp() )
break;
pPor = pPor->GetNextPortion();
}
return bRet;
}
void SwTextIter::TruncLines( bool bNoteFollow )
{
SwLineLayout *pDel = m_pCurr->GetNext();
TextFrameIndex const nEnd = m_nStart + m_pCurr->GetLen();
if( pDel )
{
m_pCurr->SetNext( nullptr );
if (MaybeHasHints() && bNoteFollow)
{
GetInfo().GetParaPortion()->SetFollowField( pDel->IsRest() ||
lcl_NeedsFieldRest( m_pCurr ) );
// bug 88534: wrong positioning of flys
SwTextFrame* pFollow = GetTextFrame()->GetFollow();
if ( pFollow && ! pFollow->IsLocked() &&
nEnd == pFollow->GetOffset() )
{
TextFrameIndex nRangeEnd = nEnd;
SwLineLayout* pLine = pDel;
// determine range to be searched for flys anchored as characters
while ( pLine )
{
nRangeEnd = nRangeEnd + pLine->GetLen();
pLine = pLine->GetNext();
}
// examine hints in range nEnd - (nEnd + nRangeChar)
SwTextNode const* pNode(nullptr);
sw::MergedAttrIter iter(*GetTextFrame());
for (SwTextAttr const* pHt = iter.NextAttr(&pNode); pHt; pHt = iter.NextAttr(&pNode))
{
if( RES_TXTATR_FLYCNT == pHt->Which() )
{
// check if hint is in our range
TextFrameIndex const nTmpPos(
GetTextFrame()->MapModelToView(pNode, pHt->GetStart()));
if ( nEnd <= nTmpPos && nTmpPos < nRangeEnd )
pFollow->InvalidateRange_(
SwCharRange( nTmpPos, nTmpPos ) );
}
}
}
}
delete pDel;
}
if( m_pCurr->IsDummy() &&
!m_pCurr->GetLen() &&
m_nStart < TextFrameIndex(GetTextFrame()->GetText().getLength()))
{
m_pCurr->SetRealHeight( 1 );
}
if (MaybeHasHints())
m_pFrame->RemoveFootnote( nEnd );
}
void SwTextIter::CntHyphens( sal_uInt8 &nEndCnt, sal_uInt8 &nMidCnt) const
{
nEndCnt = 0;
nMidCnt = 0;
if ( m_bPrev && m_pPrev && !m_pPrev->IsEndHyph() && !m_pPrev->IsMidHyph() )
return;
SwLineLayout *pLay = m_pInf->GetParaPortion();
if( m_pCurr == pLay )
return;
while( pLay != m_pCurr )
{
if ( pLay->IsEndHyph() )
nEndCnt++;
else
nEndCnt = 0;
if ( pLay->IsMidHyph() )
nMidCnt++;
else
nMidCnt = 0;
pLay = pLay->GetNext();
}
}
// Change current output device to formatting device, this has to be done before
// formatting.
SwHookOut::SwHookOut( SwTextSizeInfo& rInfo ) :
pInf( &rInfo ),
pOut( rInfo.GetOut() ),
bOnWin( rInfo.OnWin() )
{
OSL_ENSURE( rInfo.GetRefDev(), "No reference device for text formatting" );
// set new values
rInfo.SetOut( rInfo.GetRefDev() );
rInfo.SetOnWin( false );
}
SwHookOut::~SwHookOut()
{
pInf->SetOut( pOut );
pInf->SetOnWin( bOnWin );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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