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libreoffice/sw/source/core/text/porlin.cxx
Stephan Bergmann 62f47bb2a5 loplugin:includeform: sw 
Change-Id: Ifc3c4c31a31ee7189eeab6f1af30b94d64f2f92a
2017-10-23 22:45:50 +02:00

324 lines
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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 <vcl/outdev.hxx>
#include <SwPortionHandler.hxx>
#include "porlin.hxx"
#include "inftxt.hxx"
#include "portxt.hxx"
#include "pormulti.hxx"
#include "porglue.hxx"
#include <blink.hxx>
#if OSL_DEBUG_LEVEL > 0
bool ChkChain( SwLinePortion *pStart )
{
SwLinePortion *pPor = pStart->GetPortion();
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->GetPortion();
pStart->SetPortion(nullptr);
pPor->Truncate();
pStart->SetPortion( pPor );
return false;
}
pPor = pPor->GetPortion();
}
return true;
}
#endif
SwLinePortion::~SwLinePortion()
{
if( pBlink )
pBlink->Delete( this );
}
SwLinePortion *SwLinePortion::Compress()
{
return GetLen() || Width() ? this : nullptr;
}
sal_uInt16 SwLinePortion::GetViewWidth( const SwTextSizeInfo & ) const
{
return 0;
}
SwLinePortion::SwLinePortion( ) :
pPortion( nullptr ),
nLineLength( 0 ),
nAscent( 0 ),
nWhichPor( POR_LIN ),
m_bJoinBorderWithPrev(false),
m_bJoinBorderWithNext(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 sal_uInt16 nViewWidth = GetViewWidth( rInf );
if( ! nViewWidth )
return;
const sal_uInt16 nHalfView = nViewWidth / 2;
sal_uInt16 nLastWidth = pLast->Width();
if ( pLast->InSpaceGrp() && rInf.GetSpaceAdd() )
nLastWidth = nLastWidth + (sal_uInt16)pLast->CalcSpacing( rInf.GetSpaceAdd(), rInf );
sal_uInt16 nPos;
SwTextPaintInfo aInf( rInf );
const bool bBidiPor = rInf.GetTextFrame()->IsRightToLeft() !=
bool( ComplexTextLayoutFlags::BiDiRtl & rInf.GetOut()->GetLayoutMode() );
sal_uInt16 nDir = bBidiPor ?
1800 :
rInf.GetFont()->GetOrientation( rInf.GetTextFrame()->IsVertical() );
switch ( nDir )
{
case 0 :
nPos = sal_uInt16( rInf.X() );
if( nLastWidth > nHalfView )
nPos += nLastWidth - nHalfView;
aInf.X( nPos );
break;
case 900 :
nPos = sal_uInt16( rInf.Y() );
if( nLastWidth > nHalfView )
nPos -= nLastWidth + nHalfView;
aInf.Y( nPos );
break;
case 1800 :
nPos = sal_uInt16( rInf.X() );
if( nLastWidth > nHalfView )
nPos -= nLastWidth + nHalfView;
aInf.X( nPos );
break;
case 2700 :
nPos = sal_uInt16( rInf.Y() );
if( nLastWidth > nHalfView )
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<SwPosSize*>(this) = GetTextSize( rInf );
else
{
SwTextSizeInfo aInf( rInf );
aInf.SetLen( GetLen() );
*static_cast<SwPosSize*>(this) = GetTextSize( aInf );
}
}
// all following portions will be deleted
void SwLinePortion::Truncate_()
{
SwLinePortion *pPos = pPortion;
do
{ OSL_ENSURE( pPos != this, "SwLinePortion::Truncate: loop" );
SwLinePortion *pLast = pPos;
pPos = pPos->GetPortion();
pLast->SetPortion( nullptr );
delete pLast;
} while( pPos );
pPortion = nullptr;
}
// It always will be inserted after us.
SwLinePortion *SwLinePortion::Insert( SwLinePortion *pIns )
{
pIns->FindLastPortion()->SetPortion( pPortion );
SetPortion( 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->GetPortion() )
{
pPos = pPos->GetPortion();
}
return pPos;
}
SwLinePortion *SwLinePortion::Append( SwLinePortion *pIns )
{
SwLinePortion *pPos = FindLastPortion();
pPos->SetPortion( pIns );
pIns->SetPortion( 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" );
pPrev->SetPortion( pVictim->GetPortion() );
pVictim->SetPortion(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->GetPortion() && pPos->GetPortion() != this )
{
pPos = pPos->GetPortion();
}
OSL_ENSURE( pPos->GetPortion(),
"SwLinePortion::FindPrevPortion: blowing in the wind");
return pPos;
}
sal_Int32 SwLinePortion::GetCursorOfst( const sal_uInt16 nOfst ) const
{
if( nOfst > ( PrtWidth() / 2 ) )
return GetLen();
else
return 0;
}
SwPosSize SwLinePortion::GetTextSize( const SwTextSizeInfo & ) const
{
OSL_ENSURE( false, "SwLinePortion::GetTextSize: don't ask me about sizes, "
"I'm only a stupid SwLinePortion" );
return SwPosSize();
}
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 sal_uInt16 nNewWidth = static_cast<sal_uInt16>(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 )
{
bool bB2T = rInf.GetDirection() == DIR_BOTTOM2TOP;
const bool bFrameDir = rInf.GetTextFrame()->IsRightToLeft();
bool bCounterDir = ( ! bFrameDir && DIR_RIGHT2LEFT == rInf.GetDirection() ) ||
( bFrameDir && DIR_LEFT2RIGHT == rInf.GetDirection() );
if ( InSpaceGrp() && rInf.GetSpaceAdd() )
{
SwTwips nTmp = PrtWidth() + CalcSpacing( rInf.GetSpaceAdd(), 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 ? -PrtWidth() : PrtWidth() ) );
else if ( bCounterDir )
rInf.X( rInf.X() - PrtWidth() );
else
rInf.X( rInf.X() + PrtWidth() );
}
if( IsMultiPortion() && static_cast<SwMultiPortion*>(this)->HasTabulator() )
rInf.IncSpaceIdx();
rInf.SetIdx( rInf.GetIdx() + GetLen() );
}
long SwLinePortion::CalcSpacing( 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(), Height(), Width() );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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