forked from amazingfate/loongoffice
571 lines
18 KiB
C++
571 lines
18 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <hintids.hxx>
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#include <editeng/unolingu.hxx>
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#include <com/sun/star/i18n/WordType.hpp>
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#include <viewopt.hxx>
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#include <viewsh.hxx>
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#include <SwPortionHandler.hxx>
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#include <porhyph.hxx>
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#include <inftxt.hxx>
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#include <itrform2.hxx>
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#include <guess.hxx>
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#include <splargs.hxx>
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using namespace ::com::sun::star;
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using namespace ::com::sun::star::uno;
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using namespace ::com::sun::star::beans;
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using namespace ::com::sun::star::linguistic2;
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using namespace ::com::sun::star::i18n;
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Reference< XHyphenatedWord > SwTxtFormatInfo::HyphWord(
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const OUString &rTxt, const sal_uInt16 nMinTrail )
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{
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if( rTxt.getLength() < 4 || m_pFnt->IsSymbol(m_pVsh) )
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return 0;
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Reference< XHyphenator > xHyph = ::GetHyphenator();
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Reference< XHyphenatedWord > xHyphWord;
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if( xHyph.is() )
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xHyphWord = xHyph->hyphenate( OUString(rTxt),
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g_pBreakIt->GetLocale( m_pFnt->GetLanguage() ),
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rTxt.getLength() - nMinTrail, GetHyphValues() );
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return xHyphWord;
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}
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// Wir formatieren eine Zeile fuer die interaktive Trennung
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bool SwTxtFrm::Hyphenate( SwInterHyphInfo &rHyphInf )
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{
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OSL_ENSURE( ! IsVertical() || ! IsSwapped(),"swapped frame at SwTxtFrm::Hyphenate" );
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if( !g_pBreakIt->GetBreakIter().is() )
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return false;
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// Wir machen den Laden erstmal dicht:
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OSL_ENSURE( !IsLocked(), "SwTxtFrm::Hyphenate: this is locked" );
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// 4935: Der frame::Frame muss eine gueltige SSize haben!
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Calc();
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GetFormatted();
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bool bRet = false;
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if( !IsEmpty() )
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{
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// Wir muessen die Trennung immer einschalten.
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// Keine Angst, der SwTxtIter sichert im Hyphenate die alte Zeile.
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SwTxtFrmLocker aLock( this );
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if ( IsVertical() )
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SwapWidthAndHeight();
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SwTxtFormatInfo aInf( this, true ); // true for interactive hyph!
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SwTxtFormatter aLine( this, &aInf );
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aLine.CharToLine( rHyphInf.nStart );
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// Wenn wir innerhalb des ersten Wortes einer Zeile stehen, so koennte
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// dieses in der vorherigen getrennt werden, deshalb gehen wir ein Zeile
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// zurueck.
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if( aLine.Prev() )
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{
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SwLinePortion *pPor = aLine.GetCurr()->GetFirstPortion();
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while( pPor->GetPortion() )
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pPor = pPor->GetPortion();
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if( pPor->GetWhichPor() == POR_SOFTHYPH ||
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pPor->GetWhichPor() == POR_SOFTHYPHSTR )
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aLine.Next();
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}
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const sal_Int32 nEnd = rHyphInf.GetEnd();
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while( !bRet && aLine.GetStart() < nEnd )
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{
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bRet = aLine.Hyphenate( rHyphInf );
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if( !aLine.Next() )
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break;
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}
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if ( IsVertical() )
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SwapWidthAndHeight();
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}
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return bRet;
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}
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// Wir formatieren eine Zeile fuer die interaktive Trennung
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//
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// Wir koennen davon ausgehen, dass bereits formatiert wurde.
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// Fuer die CeBIT'93 gehen wir den einfachen, sicheren Weg:
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// Die Zeile wird einfach neu formatiert, der Hyphenator wird dann
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// so vorbereitet, wie ihn die UI erwartet.
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// Hier stehen natuerlich enorme Optimierungsmoeglichkeiten offen.
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void SetParaPortion( SwTxtInfo *pInf, SwParaPortion *pRoot )
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{
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OSL_ENSURE( pRoot, "SetParaPortion: no root anymore" );
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pInf->pPara = pRoot;
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}
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bool SwTxtFormatter::Hyphenate( SwInterHyphInfo &rHyphInf )
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{
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SwTxtFormatInfo &rInf = GetInfo();
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// In der letzten Zeile gibt es nie etwas zu trennen.
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// Es sei denn, es befindet sich eine FlyPortion darin,
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// oder es ist die letzte Zeile des Masters
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if( !GetNext() && !rInf.GetTxtFly().IsOn() && !pFrm->GetFollow() )
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return false;
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sal_Int32 nWrdStart = nStart;
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// Wir muessen die alte Zeile erhalten. Ein Beispiel:
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// Das Attribut fuer Trennung wurde nicht gesetzt,
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// in SwTxtFrm::Hyphenate wird es jedoch immer gesetzt,
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// weil wir Trennpositionen im Hyphenator einstellen wollen.
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SwLineLayout *pOldCurr = pCurr;
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InitCntHyph();
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// 5298: IsParaLine() (ex.IsFirstLine) fragt auf GetParaPortion() ab.
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// wir muessen gleiche Bedingungen schaffen: in der ersten
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// Zeile formatieren wir SwParaPortions...
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if( pOldCurr->IsParaPortion() )
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{
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SwParaPortion *pPara = new SwParaPortion();
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SetParaPortion( &rInf, pPara );
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pCurr = pPara;
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OSL_ENSURE( IsParaLine(), "SwTxtFormatter::Hyphenate: not the first" );
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}
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else
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pCurr = new SwLineLayout();
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nWrdStart = FormatLine( nWrdStart );
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// Man muss immer im Hinterkopf behalten, dass es z.B.
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// Felder gibt, die aufgetrennt werden koennen ...
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if( pCurr->PrtWidth() && pCurr->GetLen() )
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{
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// Wir muessen uns darauf einstellen, dass in der Zeile
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// FlyFrms haengen, an denen auch umgebrochen werden darf.
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// Wir suchen also die erste HyphPortion in dem angegebenen
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// Bereich.
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SwLinePortion *pPos = pCurr->GetPortion();
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const sal_Int32 nPamStart = rHyphInf.nStart;
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nWrdStart = nStart;
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const sal_Int32 nEnd = rHyphInf.GetEnd();
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while( pPos )
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{
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// Entweder wir liegen drueber oder wir laufen gerade auf eine
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// Hyphportion die am Ende der Zeile oder vor einem Flys steht.
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if( nWrdStart >= nEnd )
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{
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nWrdStart = 0;
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break;
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}
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if( nWrdStart >= nPamStart && pPos->InHyphGrp()
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&& ( !pPos->IsSoftHyphPortion()
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|| ((SwSoftHyphPortion*)pPos)->IsExpand() ) )
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{
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nWrdStart = nWrdStart + pPos->GetLen();
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break;
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}
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nWrdStart = nWrdStart + pPos->GetLen();
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pPos = pPos->GetPortion();
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}
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// Wenn pPos 0 ist, wurde keine Trennstelle ermittelt.
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if( !pPos )
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nWrdStart = 0;
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}
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// Das alte LineLayout wird wieder eingestellt ...
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delete pCurr;
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pCurr = pOldCurr;
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if( pOldCurr->IsParaPortion() )
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{
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SetParaPortion( &rInf, (SwParaPortion*)pOldCurr );
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OSL_ENSURE( IsParaLine(), "SwTxtFormatter::Hyphenate: even not the first" );
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}
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if( nWrdStart==0 )
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return false;
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// nWrdStart bezeichnet nun die Position im String, der
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// fuer eine Trennung zur Debatte steht.
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// Start() hangelt sich zum End()
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rHyphInf.nWordStart = nWrdStart;
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sal_Int32 nLen = 0;
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const sal_Int32 nEnd = nWrdStart;
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// Wir suchen vorwaerts
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Reference< XHyphenatedWord > xHyphWord;
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Boundary aBound =
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g_pBreakIt->GetBreakIter()->getWordBoundary( rInf.GetTxt(), nWrdStart,
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g_pBreakIt->GetLocale( rInf.GetFont()->GetLanguage() ), WordType::DICTIONARY_WORD, true );
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nWrdStart = aBound.startPos;
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nLen = aBound.endPos - nWrdStart;
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if ( nLen == 0 )
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return false;
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OUString aSelTxt( rInf.GetTxt().copy(nWrdStart, nLen) );
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sal_uInt16 nMinTrail = 0;
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if( nWrdStart + nLen > nEnd )
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nMinTrail = nWrdStart + nLen - nEnd - 1;
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//!! rHyphInf.SetHyphWord( ... ) mu??? hier geschehen
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xHyphWord = rInf.HyphWord( aSelTxt, nMinTrail );
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if ( xHyphWord.is() )
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{
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rHyphInf.SetHyphWord( xHyphWord );
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rHyphInf.nWordStart = nWrdStart;
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rHyphInf.nWordLen = nLen;
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rHyphInf.SetNoLang( false );
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rHyphInf.SetCheck( true );
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return true;
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}
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if ( !rHyphInf.IsCheck() )
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rHyphInf.SetNoLang( true );
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return false;
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}
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bool SwTxtPortion::CreateHyphen( SwTxtFormatInfo &rInf, SwTxtGuess &rGuess )
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{
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Reference< XHyphenatedWord > xHyphWord = rGuess.HyphWord();
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OSL_ENSURE( !pPortion, "SwTxtPortion::CreateHyphen(): another portion, another planet..." );
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OSL_ENSURE( xHyphWord.is(), "SwTxtPortion::CreateHyphen(): You are lucky! The code is robust here." );
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if( rInf.IsHyphForbud() ||
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pPortion || // robust
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!xHyphWord.is() || // more robust
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// Mehrzeilige Felder duerfen nicht interaktiv getrennt werden.
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( rInf.IsInterHyph() && InFldGrp() ) )
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return false;
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SwHyphPortion *pHyphPor;
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sal_Int32 nPorEnd;
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SwTxtSizeInfo aInf( rInf );
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// first case: hyphenated word has alternative spelling
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if ( xHyphWord->isAlternativeSpelling() )
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{
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SvxAlternativeSpelling aAltSpell;
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aAltSpell = SvxGetAltSpelling( xHyphWord );
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OSL_ENSURE( aAltSpell.bIsAltSpelling, "no alternatve spelling" );
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OUString aAltTxt = aAltSpell.aReplacement;
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nPorEnd = aAltSpell.nChangedPos + rGuess.BreakStart() - rGuess.FieldDiff();
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sal_Int32 nTmpLen = 0;
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// soft hyphen at alternative spelling position?
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if( rInf.GetTxt()[ rInf.GetSoftHyphPos() ] == CHAR_SOFTHYPHEN )
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{
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pHyphPor = new SwSoftHyphStrPortion( aAltTxt );
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nTmpLen = 1;
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}
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else {
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pHyphPor = new SwHyphStrPortion( aAltTxt );
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}
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// length of pHyphPor is adjusted
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pHyphPor->SetLen( aAltTxt.getLength() + 1 );
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(SwPosSize&)(*pHyphPor) = pHyphPor->GetTxtSize( rInf );
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pHyphPor->SetLen( aAltSpell.nChangedLength + nTmpLen );
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}
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else
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{
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// second case: no alternative spelling
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SwHyphPortion aHyphPor;
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aHyphPor.SetLen( 1 );
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static const void* pLastMagicNo = 0;
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static sal_uInt16 aMiniCacheH = 0, aMiniCacheW = 0;
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const void* pTmpMagic;
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sal_uInt16 nFntIdx;
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rInf.GetFont()->GetMagic( pTmpMagic, nFntIdx, rInf.GetFont()->GetActual() );
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if( !pLastMagicNo || pLastMagicNo != pTmpMagic ) {
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pLastMagicNo = pTmpMagic;
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(SwPosSize&)aHyphPor = aHyphPor.GetTxtSize( rInf );
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aMiniCacheH = aHyphPor.Height(), aMiniCacheW = aHyphPor.Width();
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} else {
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aHyphPor.Height( aMiniCacheH ), aHyphPor.Width( aMiniCacheW );
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}
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aHyphPor.SetLen( 0 );
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pHyphPor = new SwHyphPortion( aHyphPor );
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pHyphPor->SetWhichPor( POR_HYPH );
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// values required for this
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nPorEnd = xHyphWord->getHyphenPos() + 1 + rGuess.BreakStart()
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- rGuess.FieldDiff();
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}
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// portion end must be in front of us
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// we do not put hyphens at start of line
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if ( nPorEnd > rInf.GetIdx() ||
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( nPorEnd == rInf.GetIdx() && rInf.GetLineStart() != rInf.GetIdx() ) )
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{
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aInf.SetLen( nPorEnd - rInf.GetIdx() );
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pHyphPor->SetAscent( GetAscent() );
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SetLen( aInf.GetLen() );
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CalcTxtSize( aInf );
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Insert( pHyphPor );
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short nKern = rInf.GetFont()->CheckKerning();
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if( nKern )
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new SwKernPortion( *this, nKern );
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return true;
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}
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// last exit for the lost
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delete pHyphPor;
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BreakCut( rInf, rGuess );
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return false;
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}
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bool SwHyphPortion::GetExpTxt( const SwTxtSizeInfo &/*rInf*/, OUString &rTxt ) const
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{
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rTxt = "-";
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return true;
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}
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void SwHyphPortion::HandlePortion( SwPortionHandler& rPH ) const
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{
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OUString aString( '-' );
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rPH.Special( GetLen(), aString, GetWhichPor() );
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}
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bool SwHyphPortion::Format( SwTxtFormatInfo &rInf )
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{
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const SwLinePortion *pLast = rInf.GetLast();
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Height( pLast->Height() );
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SetAscent( pLast->GetAscent() );
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OUString aTxt;
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if( !GetExpTxt( rInf, aTxt ) )
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return false;
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PrtWidth( rInf.GetTxtSize( aTxt ).Width() );
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const bool bFull = rInf.Width() <= rInf.X() + PrtWidth();
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if( bFull && !rInf.IsUnderflow() ) {
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Truncate();
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rInf.SetUnderflow( this );
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}
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return bFull;
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}
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bool SwHyphStrPortion::GetExpTxt( const SwTxtSizeInfo &, OUString &rTxt ) const
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{
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rTxt = aExpand;
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return true;
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}
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void SwHyphStrPortion::HandlePortion( SwPortionHandler& rPH ) const
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{
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rPH.Special( GetLen(), aExpand, GetWhichPor() );
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}
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SwLinePortion *SwSoftHyphPortion::Compress() { return this; }
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SwSoftHyphPortion::SwSoftHyphPortion() :
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bExpand(false), nViewWidth(0), nHyphWidth(0)
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{
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SetLen(1);
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SetWhichPor( POR_SOFTHYPH );
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}
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sal_uInt16 SwSoftHyphPortion::GetViewWidth( const SwTxtSizeInfo &rInf ) const
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{
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// Wir stehen zwar im const, aber nViewWidth sollte erst im letzten
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// Moment errechnet werden:
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if( !Width() && rInf.OnWin() && rInf.GetOpt().IsSoftHyph() && !IsExpand() )
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{
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if( !nViewWidth )
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((SwSoftHyphPortion*)this)->nViewWidth
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= rInf.GetTxtSize(OUString('-')).Width();
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}
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else
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((SwSoftHyphPortion*)this)->nViewWidth = 0;
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return nViewWidth;
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}
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/* Faelle:
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* 1) SoftHyph steht in der Zeile, ViewOpt aus.
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* -> unsichtbar, Nachbarn unveraendert
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* 2) SoftHyph steht in der Zeile, ViewOpt an.
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* -> sichtbar, Nachbarn veraendert
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* 3) SoftHyph steht am Zeilenende, ViewOpt aus/an.
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* -> immer sichtbar, Nachbarn unveraendert
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*/
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void SwSoftHyphPortion::Paint( const SwTxtPaintInfo &rInf ) const
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{
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if( Width() )
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{
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rInf.DrawViewOpt( *this, POR_SOFTHYPH );
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SwExpandPortion::Paint( rInf );
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}
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}
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/* Die endgueltige Breite erhalten wir im FormatEOL().
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* In der Underflow-Phase stellen wir fest, ob ueberhaupt ein
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* alternatives Spelling vorliegt. Wenn ja ...
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*
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* Fall 1: "Au-to"
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* 1) {Au}{-}{to}, {to} passt nicht mehr => Underflow
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* 2) {-} ruft Hyphenate => keine Alternative
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* 3) FormatEOL() und bFull = true
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*
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* Fall 2: "Zuc-ker"
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* 1) {Zuc}{-}{ker}, {ker} passt nicht mehr => Underflow
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* 2) {-} ruft Hyphenate => Alternative!
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* 3) Underflow() und bFull = true
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* 4) {Zuc} ruft Hyphenate => {Zuk}{-}{ker}
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*/
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bool SwSoftHyphPortion::Format( SwTxtFormatInfo &rInf )
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{
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bool bFull = true;
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// special case for old german spelling
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if( rInf.IsUnderflow() )
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{
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if( rInf.GetSoftHyphPos() )
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return true;
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const bool bHyph = rInf.ChgHyph( true );
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if( rInf.IsHyphenate() )
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{
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rInf.SetSoftHyphPos( rInf.GetIdx() );
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Width(0);
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// if the soft hyphend word has an alternative spelling
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// when hyphenated (old german spelling), the soft hyphen
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// portion has to trigger an underflow
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SwTxtGuess aGuess;
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bFull = rInf.IsInterHyph() ||
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!aGuess.AlternativeSpelling( rInf, rInf.GetIdx() - 1 );
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}
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rInf.ChgHyph( bHyph );
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|
|
|
if( bFull && !rInf.IsHyphForbud() )
|
|
{
|
|
rInf.SetSoftHyphPos(0);
|
|
FormatEOL( rInf );
|
|
if ( rInf.GetFly() )
|
|
rInf.GetRoot()->SetMidHyph( true );
|
|
else
|
|
rInf.GetRoot()->SetEndHyph( true );
|
|
}
|
|
else
|
|
{
|
|
rInf.SetSoftHyphPos( rInf.GetIdx() );
|
|
Truncate();
|
|
rInf.SetUnderflow( this );
|
|
}
|
|
return true;
|
|
}
|
|
|
|
rInf.SetSoftHyphPos(0);
|
|
SetExpand( true );
|
|
bFull = SwHyphPortion::Format( rInf );
|
|
SetExpand( false );
|
|
if( !bFull )
|
|
{
|
|
// default-maessig besitzen wir keine Breite, aber eine Hoehe
|
|
nHyphWidth = Width();
|
|
Width(0);
|
|
}
|
|
return bFull;
|
|
}
|
|
|
|
// Format end of Line
|
|
|
|
void SwSoftHyphPortion::FormatEOL( SwTxtFormatInfo &rInf )
|
|
{
|
|
if( !IsExpand() )
|
|
{
|
|
SetExpand( true );
|
|
if( rInf.GetLast() == this )
|
|
rInf.SetLast( FindPrevPortion( rInf.GetRoot() ) );
|
|
|
|
// 5964: alte Werte muessen wieder zurueckgesetzt werden.
|
|
const SwTwips nOldX = rInf.X();
|
|
const sal_Int32 nOldIdx = rInf.GetIdx();
|
|
rInf.X( rInf.X() - PrtWidth() );
|
|
rInf.SetIdx( rInf.GetIdx() - GetLen() );
|
|
const bool bFull = SwHyphPortion::Format( rInf );
|
|
nHyphWidth = Width();
|
|
|
|
// 6976: Eine truebe Sache: Wir werden erlaubterweise breiter,
|
|
// aber gleich wird noch ein Fly verarbeitet, der eine korrekte
|
|
// X-Position braucht.
|
|
if( bFull || !rInf.GetFly() )
|
|
rInf.X( nOldX );
|
|
else
|
|
rInf.X( nOldX + Width() );
|
|
rInf.SetIdx( nOldIdx );
|
|
}
|
|
}
|
|
|
|
// Wir expandieren:
|
|
// - wenn die Sonderzeichen sichtbar sein sollen
|
|
// - wenn wir am Ende der Zeile stehen.
|
|
// - wenn wir vor einem (echten/emuliertem) Zeilenumbruch stehen
|
|
bool SwSoftHyphPortion::GetExpTxt( const SwTxtSizeInfo &rInf, OUString &rTxt ) const
|
|
{
|
|
if( IsExpand() || ( rInf.OnWin() && rInf.GetOpt().IsSoftHyph() ) ||
|
|
( GetPortion() && ( GetPortion()->InFixGrp() ||
|
|
GetPortion()->IsDropPortion() || GetPortion()->IsLayPortion() ||
|
|
GetPortion()->IsParaPortion() || GetPortion()->IsBreakPortion() ) ) )
|
|
{
|
|
return SwHyphPortion::GetExpTxt( rInf, rTxt );
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void SwSoftHyphPortion::HandlePortion( SwPortionHandler& rPH ) const
|
|
{
|
|
const OUString aString( '-' );
|
|
const sal_uInt16 nWhich = ! Width() ?
|
|
POR_SOFTHYPH_COMP :
|
|
GetWhichPor();
|
|
rPH.Special( GetLen(), aString, nWhich );
|
|
}
|
|
|
|
void SwSoftHyphStrPortion::Paint( const SwTxtPaintInfo &rInf ) const
|
|
{
|
|
// Bug oder feature?:
|
|
// {Zu}{k-}{ker}, {k-} wird grau statt {-}
|
|
rInf.DrawViewOpt( *this, POR_SOFTHYPH );
|
|
SwHyphStrPortion::Paint( rInf );
|
|
}
|
|
|
|
SwSoftHyphStrPortion::SwSoftHyphStrPortion( const OUString &rStr )
|
|
: SwHyphStrPortion( rStr )
|
|
{
|
|
SetLen( 1 );
|
|
SetWhichPor( POR_SOFTHYPHSTR );
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|