/* -*- 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 <vcl/outdev.hxx>
#include <SwPortionHandler.hxx>
#include "porlin.hxx"
#include "portxt.hxx"
#include "inftxt.hxx"
#include "pormulti.hxx"
#if OSL_DEBUG_LEVEL > 0
static bool ChkChain( SwLinePortion *pStart )
{
SwLinePortion *pPor = pStart->GetNextPortion();
sal_uInt16 nCount = 0;
while( pPor )
{
++nCount;
OSL_ENSURE( nCount < 200 && pPor != pStart,
"ChkChain(): lost in chains" );
if( nCount >= 200 || pPor == pStart )
{
// the lifesaver
pPor = pStart->GetNextPortion();
pStart->SetNextPortion(nullptr);
pPor->Truncate();
pStart->SetNextPortion( pPor );
return false;
}
pPor = pPor->GetNextPortion();
}
return true;
}
#endif
SwLinePortion::~SwLinePortion()
{
}
SwLinePortion *SwLinePortion::Compress()
{
return GetLen() || Width() ?
this : nullptr;
}
SwTwips SwLinePortion::GetViewWidth(
const SwTextSizeInfo&)
const {
return 0; }
SwLinePortion::SwLinePortion( ) :
mpNextPortion( nullptr ),
mnLineLength( 0 ),
mnAscent( 0 ),
mnHangingBaseline( 0 ),
mnWhichPor( PortionType::NONE ),
m_bJoinBorderWithPrev(
false),
m_bJoinBorderWithNext(
false),
m_bIsFieldmarkText(
false)
{
}
void SwLinePortion::PrePaint(
const SwTextPaintInfo& rInf,
const SwLinePortion* pLast )
const
{
OSL_ENSURE( rInf.OnWin(),
"SwLinePortion::PrePaint: don't prepaint on a printer");
OSL_ENSURE( !Width(),
"SwLinePortion::PrePaint: For Width()==0 only!");
const SwTwips nViewWidth = GetViewWidth(rInf);
if( ! nViewWidth )
return;
const SwTwips nHalfView = nViewWidth / 2;
SwTwips nLastWidth = pLast->Width() + pLast->ExtraBlankWidth();
if ( pLast->InSpaceGrp() && rInf.GetSpaceAdd(
/*bShrink=*/true) )
nLastWidth += pLast->CalcSpacing( rInf.GetSpaceAdd(
/*bShrink=*/true), rInf );
SwTwips nPos;
SwTextPaintInfo aInf( rInf );
const bool bBidiPor = rInf.GetTextFrame()->IsRightToLeft() !=
bool( vcl::text::ComplexTextLayoutFlags::BiDiRtl & rInf.GetOut()->GetLayoutMode(
) );
Degree10 nDir = bBidiPor ?
1800_deg10 :
rInf.GetFont()->GetOrientation( rInf.GetTextFrame()->IsVertical() );
// pLast == this *only* for the 1st portion in the line so nLastWidth is 0;
// allow this too, will paint outside the frame but might look better...
if (nLastWidth > nHalfView || pLast == this)
{
switch (nDir.get())
{
case 0:
nPos = rInf.X();
nPos += nLastWidth - nHalfView;
aInf.X( nPos );
break;
case 900:
nPos = rInf.Y();
nPos -= nLastWidth - nHalfView;
aInf.Y( nPos );
break;
case 1800:
nPos = rInf.X();
nPos -= nLastWidth - nHalfView;
aInf.X( nPos );
break;
case 2700:
nPos = rInf.Y();
nPos += nLastWidth - nHalfView;
aInf.Y( nPos );
break;
}
}
SwLinePortion *pThis = const_cast<SwLinePortion*>(this);
pThis->Width( nViewWidth );
Paint( aInf );
pThis->Width(0);
}
void SwLinePortion::CalcTextSize( const SwTextSizeInfo &rInf )
{
if( GetLen() == rInf.GetLen() )
*static_cast<SwPositiveSize*>(this) = GetTextSize( rInf );
else
{
SwTextSizeInfo aInf( rInf );
aInf.SetLen( GetLen() );
*static_cast<SwPositiveSize*>(this) = GetTextSize( aInf );
}
}
// all following portions will be deleted
void SwLinePortion::Truncate_()
{
SwLinePortion *pPos = mpNextPortion;
do
{
OSL_ENSURE( pPos != this, "SwLinePortion::Truncate: loop" );
SwLinePortion *pLast = pPos;
pPos = pPos->GetNextPortion();
pLast->SetNextPortion( nullptr );
delete pLast;
} while( pPos );
mpNextPortion = nullptr;
}
// It always will be inserted after us.
SwLinePortion *SwLinePortion::Insert( SwLinePortion *pIns )
{
pIns->FindLastPortion()->SetNextPortion( mpNextPortion );
SetNextPortion( pIns );
#if OSL_DEBUG_LEVEL > 0
ChkChain( this );
#endif
return pIns;
}
SwLinePortion *SwLinePortion::FindLastPortion()
{
SwLinePortion *pPos = this;
// Find the end and link pLinPortion to the last one...
while( pPos->GetNextPortion() )
{
pPos = pPos->GetNextPortion();
}
return pPos;
}
SwLinePortion *SwLinePortion::Append( SwLinePortion *pIns )
{
SwLinePortion *pPos = FindLastPortion();
pPos->SetNextPortion( pIns );
pIns->SetNextPortion( nullptr );
#if OSL_DEBUG_LEVEL > 0
ChkChain( this );
#endif
return pIns;
}
SwLinePortion *SwLinePortion::Cut( SwLinePortion *pVictim )
{
SwLinePortion *pPrev = pVictim->FindPrevPortion( this );
OSL_ENSURE( pPrev, "SwLinePortion::Cut(): can't cut" );
// note: if pVictim is a follow then clearing pPrev's m_bHasFollow here is
// tricky because it could be that the HookChar inserted a tab portion
// between 2 field portions
pPrev->SetNextPortion( pVictim->GetNextPortion() );
pVictim->SetNextPortion(nullptr);
return pVictim;
}
SwLinePortion *SwLinePortion::FindPrevPortion( const SwLinePortion *pRoot )
{
OSL_ENSURE( pRoot != this, "SwLinePortion::FindPrevPortion(): invalid root" );
SwLinePortion *pPos = const_cast<SwLinePortion*>(pRoot);
while( pPos->GetNextPortion() && pPos->GetNextPortion() != this )
{
pPos = pPos->GetNextPortion();
}
OSL_ENSURE( pPos->GetNextPortion(),
"SwLinePortion::FindPrevPortion: blowing in the wind");
return pPos;
}
TextFrameIndex SwLinePortion::GetModelPositionForViewPoint(const SwTwips nOfst) const
{
if( nOfst > ( PrtWidth() / 2 ) )
return GetLen();
else
return TextFrameIndex(0);
}
SwPositiveSize SwLinePortion::GetTextSize( const SwTextSizeInfo & ) const
{
OSL_ENSURE( false, "SwLinePortion::GetTextSize: don't ask me about sizes, "
"I'm only a stupid SwLinePortion" );
return SwPositiveSize();
}
bool SwLinePortion::Format( SwTextFormatInfo &rInf )
{
if( rInf.X() > rInf.Width() )
{
Truncate();
rInf.SetUnderflow( this );
return true;
}
const SwLinePortion *pLast = rInf.GetLast();
Height( pLast->Height() );
SetAscent( pLast->GetAscent() );
const SwTwips nNewWidth = rInf.X() + PrtWidth();
// Only portions with true width can return true
// Notes for example never set bFull==true
if( rInf.Width() <= nNewWidth && PrtWidth() && ! IsKernPortion() )
{
Truncate();
if( nNewWidth > rInf.Width() )
PrtWidth( nNewWidth - rInf.Width() );
rInf.GetLast()->FormatEOL( rInf );
return true;
}
return false;
}
// Format end of line
void SwLinePortion::FormatEOL( SwTextFormatInfo & )
{ }
void SwLinePortion::Move(SwTextPaintInfo & rInf) const
{
bool bB2T = rInf.GetDirection() == DIR_BOTTOM2TOP;
const bool bFrameDir = rInf.GetTextFrame()->IsRightToLeft();
bool bCounterDir = ( ! bFrameDir && DIR_RIGHT2LEFT == rInf.GetDirection() ) ||
( bFrameDir && DIR_LEFT2RIGHT == rInf.GetDirection() );
SwTwips nTmp = PrtWidth() + ExtraBlankWidth();
if ( InSpaceGrp() && rInf.GetSpaceAdd(/*bShrink=*/true) )
{
nTmp += CalcSpacing( rInf.GetSpaceAdd(/*bShrink=*/true), rInf );
if( rInf.IsRotated() )
rInf.Y( rInf.Y() + ( bB2T ? -nTmp : nTmp ) );
else if ( bCounterDir )
rInf.X( rInf.X() - nTmp );
else
rInf.X( rInf.X() + nTmp );
}
else
{
if( InFixMargGrp() && !IsMarginPortion() )
{
rInf.IncSpaceIdx();
rInf.IncKanaIdx();
}
if( rInf.IsRotated() )
rInf.Y(rInf.Y() + (bB2T ? -nTmp : nTmp));
else if ( bCounterDir )
rInf.X(rInf.X() - nTmp);
else
rInf.X(rInf.X() + nTmp);
}
if (IsMultiPortion() && static_cast<SwMultiPortion const*>(this)->HasTabulator())
rInf.IncSpaceIdx();
rInf.SetIdx( rInf.GetIdx() + GetLen() );
}
SwTwips SwLinePortion::CalcSpacing( tools::Long , const SwTextSizeInfo & ) const
{
return 0;
}
bool SwLinePortion::GetExpText( const SwTextSizeInfo &, OUString & ) const
{
return false;
}
void SwLinePortion::HandlePortion( SwPortionHandler& rPH ) const
{
rPH.Special( GetLen(), OUString(), GetWhichPor() );
}
void SwLinePortion::dumpAsXml(xmlTextWriterPtr pWriter, const OUString& rText, TextFrameIndex& nOffset) const
{
(void)xmlTextWriterStartElement(pWriter, BAD_CAST("SwLinePortion"));
dumpAsXmlAttributes(pWriter, rText, nOffset);
nOffset += GetLen();
(void)xmlTextWriterEndElement(pWriter);
}
void SwLinePortion::dumpAsXmlAttributes(xmlTextWriterPtr pWriter, std::u16string_view rText, TextFrameIndex nOffset) const
{
(void)xmlTextWriterWriteFormatAttribute(pWriter, BAD_CAST("ptr"), "%p", this);
(void)xmlTextWriterWriteAttribute(pWriter, BAD_CAST("symbol"), BAD_CAST(typeid(*this).name()));
(void)xmlTextWriterWriteAttribute(
pWriter, BAD_CAST("width"),
BAD_CAST(OString::number(Width()).getStr()));
(void)xmlTextWriterWriteAttribute(
pWriter, BAD_CAST("height"),
BAD_CAST(OString::number(Height()).getStr()));
(void)xmlTextWriterWriteAttribute(
pWriter, BAD_CAST("length"),
BAD_CAST(OString::number(static_cast<sal_Int32>(mnLineLength)).getStr()));
(void)xmlTextWriterWriteAttribute(
pWriter, BAD_CAST("type"),
BAD_CAST(sw::PortionTypeToString(GetWhichPor())));
OUString aText( rText.substr(sal_Int32(nOffset), sal_Int32(GetLen())) );
for (int i = 0; i < 32; ++i)
aText = aText.replace(i, '*');
(void)xmlTextWriterWriteAttribute(pWriter, BAD_CAST("portion"),
BAD_CAST(aText.toUtf8().getStr()));
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
