sw/source/core/text/redlnitr.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sal/config.h>
  21
  22 #include <string_view>
  23
  24 #include <hintids.hxx>
  25 #include <o3tl/safeint.hxx>
  26 #include <svl/whiter.hxx>
  27 #include <com/sun/star/i18n/ScriptType.hpp>
  28 #include <scriptinfo.hxx>
  29 #include <swmodule.hxx>
  30 #include <redline.hxx>
  31 #include <txatbase.hxx>
  32 #include <docary.hxx>
  33 #include "itratr.hxx"
  34 #include <ndtxt.hxx>
  35 #include <doc.hxx>
  36 #include <IDocumentRedlineAccess.hxx>
  37 #include <IDocumentLayoutAccess.hxx>
  38 #include <IDocumentMarkAccess.hxx>
  39 #include <IMark.hxx>
  40 #include <bookmark.hxx>
  41 #include <rootfrm.hxx>
  42 #include <breakit.hxx>
  43 #include <vcl/commandevent.hxx>
  44 #include <vcl/settings.hxx>
  45 #include <txtfrm.hxx>
  46 #include <ftnfrm.hxx>
  47 #include <vcl/svapp.hxx>
  48 #include "redlnitr.hxx"
  49 #include <extinput.hxx>
  50 #include <fmtpdsc.hxx>
  51 #include <editeng/charhiddenitem.hxx>
  52 #include <editeng/colritem.hxx>
  53 #include <editeng/crossedoutitem.hxx>
  54 #include <editeng/formatbreakitem.hxx>
  55 #include <editeng/udlnitem.hxx>
  56
  57 using namespace ::com::sun::star;
  58
  59 namespace {
  60
  61 class HideIterator
  62 {
  63 private:
  64     IDocumentRedlineAccess const& m_rIDRA;
  65     IDocumentMarkAccess const& m_rIDMA;
  66     bool const m_isHideRedlines;
  67     sw::FieldmarkMode const m_eFieldmarkMode;
  68     bool const m_isHideParagraphBreaks;
  69     SwPosition const m_Start;
  70     /// next redline
  71     SwRedlineTable::size_type m_RedlineIndex;
  72     /// next fieldmark
  73     std::pair<sw::mark::IFieldmark const*, std::optional<SwPosition>> m_Fieldmark;
  74     std::optional<SwPosition> m_oNextFieldmarkHide;
  75     /// previous paragraph break - because m_pStartPos/EndPos are non-owning
  76     std::optional<std::pair<SwPosition, SwPosition>> m_oParagraphBreak;
  77     /// current start/end pair
  78     SwPosition const* m_pStartPos;
  79     SwPosition const* m_pEndPos;
  80
  81 public:
  82     SwPosition const* GetStartPos() const { return m_pStartPos; }
  83     SwPosition const* GetEndPos() const { return m_pEndPos; }
  84
  85     HideIterator(SwTextNode & rTextNode,
  86             bool const isHideRedlines, sw::FieldmarkMode const eMode,
  87             sw::ParagraphBreakMode const ePBMode)
  88         : m_rIDRA(rTextNode.getIDocumentRedlineAccess())
  89         , m_rIDMA(*rTextNode.getIDocumentMarkAccess())
  90         , m_isHideRedlines(isHideRedlines)
  91         , m_eFieldmarkMode(eMode)
  92         , m_isHideParagraphBreaks(ePBMode == sw::ParagraphBreakMode::Hidden)
  93         , m_Start(rTextNode, 0)
  94         , m_RedlineIndex(isHideRedlines ? m_rIDRA.GetRedlinePos(rTextNode, RedlineType::Any) : SwRedlineTable::npos)
  95         , m_pStartPos(nullptr)
  96         , m_pEndPos(&m_Start)
  97     {
  98     }
  99
 100     // delete redlines and fieldmarks can't overlap, due to sw::CalcBreaks()
 101     // and no combining of adjacent redlines
 102     // -> dummy chars are delete-redlined *iff* entire fieldmark is
 103     // Note: caller is responsible for checking for immediately adjacent hides
 104     bool Next()
 105     {
 106         SwPosition const* pNextRedlineHide(nullptr);
 107         assert(m_pEndPos);
 108         if (m_isHideRedlines)
 109         {
 110             // position on current or next redline
 111             for (; m_RedlineIndex < m_rIDRA.GetRedlineTable().size(); ++m_RedlineIndex)
 112             {
 113                 SwRangeRedline const*const pRed = m_rIDRA.GetRedlineTable()[m_RedlineIndex];
 114
 115                 if (m_pEndPos->GetNodeIndex() < pRed->Start()->GetNodeIndex())
 116                     break;
 117
 118                 if (pRed->GetType() != RedlineType::Delete)
 119                     continue;
 120
 121                 auto [pStart, pEnd] = pRed->StartEnd(); // SwPosition*
 122                 if (*pStart == *pEnd)
 123                 {   // only allowed while moving (either way?)
 124 //                  assert(IDocumentRedlineAccess::IsHideChanges(rIDRA.GetRedlineFlags()));
 125                     continue;
 126                 }
 127                 if (pStart->GetNode().IsTableNode())
 128                 {
 129                     assert(pEnd->GetNode() == m_Start.GetNode() && pEnd->GetContentIndex() == 0);
 130                     continue; // known pathology, ignore it
 131                 }
 132                 if (*m_pEndPos <= *pStart)
 133                 {
 134                     pNextRedlineHide = pStart;
 135                     break; // the next one
 136                 }
 137             }
 138         }
 139
 140         // position on current or next fieldmark
 141         m_oNextFieldmarkHide.reset();
 142         if (m_eFieldmarkMode != sw::FieldmarkMode::ShowBoth)
 143         {
 144             sal_Unicode const magic(m_eFieldmarkMode == sw::FieldmarkMode::ShowResult
 145                     ? CH_TXT_ATR_FIELDSTART
 146                     : CH_TXT_ATR_FIELDSEP);
 147             SwTextNode* pTextNode = m_pEndPos->GetNode().GetTextNode();
 148             sal_Int32 const nPos = pTextNode ? pTextNode->GetText().indexOf(
 149                     magic, m_pEndPos->GetContentIndex()) : -1;
 150             if (nPos != -1)
 151             {
 152                 m_oNextFieldmarkHide.emplace(*pTextNode, nPos);
 153                 sw::mark::IFieldmark const*const pFieldmark(
 154                         m_eFieldmarkMode == sw::FieldmarkMode::ShowResult
 155                             ? m_rIDMA.getFieldmarkAt(*m_oNextFieldmarkHide)
 156                             : m_rIDMA.getFieldmarkFor(*m_oNextFieldmarkHide));
 157                 assert(pFieldmark);
 158                 m_Fieldmark.first = pFieldmark;
 159                 // for cursor travelling, there should be 2 visible chars;
 160                 // whichever char is hidden, the cursor travelling needs to
 161                 // be adapted in any case to skip in some situation or other;
 162                 // always hide the CH_TXT_ATR_FIELDSEP for now
 163                 if (m_eFieldmarkMode == sw::FieldmarkMode::ShowResult)
 164                 {
 165                     m_Fieldmark.second.emplace(
 166                         sw::mark::FindFieldSep(*m_Fieldmark.first));
 167                     m_Fieldmark.second->AdjustContent(+1);
 168                     m_oNextFieldmarkHide->AdjustContent(+1); // skip start
 169                 }
 170                 else
 171                 {
 172                     m_Fieldmark.second.emplace(pFieldmark->GetMarkEnd());
 173                     m_Fieldmark.second->AdjustContent(-1);
 174                 }
 175             }
 176         }
 177
 178         // == can happen only if redline starts inside field command, and in
 179         // that case redline will end before field separator
 180         assert(!pNextRedlineHide || !m_oNextFieldmarkHide
 181             || *pNextRedlineHide != *m_oNextFieldmarkHide
 182             || *m_rIDRA.GetRedlineTable()[m_RedlineIndex]->End() < *m_Fieldmark.second);
 183         if (pNextRedlineHide
 184             && (!m_oNextFieldmarkHide || *pNextRedlineHide < *m_oNextFieldmarkHide))
 185         {
 186             SwRangeRedline const*const pRed(m_rIDRA.GetRedlineTable()[m_RedlineIndex]);
 187             m_pStartPos = pRed->Start();
 188             m_pEndPos = pRed->End();
 189             ++m_RedlineIndex;
 190             return true;
 191         }
 192         else if (m_oNextFieldmarkHide)
 193         {
 194             assert(!pNextRedlineHide || *m_oNextFieldmarkHide <= *pNextRedlineHide);
 195             m_pStartPos = &*m_oNextFieldmarkHide;
 196             m_pEndPos = &*m_Fieldmark.second;
 197             return true;
 198         }
 199         else
 200         {
 201             assert(!pNextRedlineHide && !m_oNextFieldmarkHide);
 202             auto const hasHiddenItem = [](auto const& rNode) {
 203                 auto const& rpSet(rNode.GetAttr(RES_PARATR_LIST_AUTOFMT).GetStyleHandle());
 204                 return rpSet ? rpSet->Get(RES_CHRATR_HIDDEN).GetValue() : false;
 205             };
 206             auto const hasBreakBefore = [](SwTextNode const& rNode) {
 207                 if (rNode.GetAttr(RES_PAGEDESC).GetPageDesc())
 208                 {
 209                     return true;
 210                 }
 211                 switch (rNode.GetAttr(RES_BREAK).GetBreak())
 212                 {
 213                     case SvxBreak::ColumnBefore:
 214                     case SvxBreak::ColumnBoth:
 215                     case SvxBreak::PageBefore:
 216                     case SvxBreak::PageBoth:
 217                         return true;
 218                     default:
 219                         break;
 220                 }
 221                 return false;
 222             };
 223             auto const hasBreakAfter = [](SwTextNode const& rNode) {
 224                 switch (rNode.GetAttr(RES_BREAK).GetBreak())
 225                 {
 226                     case SvxBreak::ColumnAfter:
 227                     case SvxBreak::ColumnBoth:
 228                     case SvxBreak::PageAfter:
 229                     case SvxBreak::PageBoth:
 230                         return true;
 231                     default:
 232                         break;
 233                 }
 234                 return false;
 235             };
 236             if (m_isHideParagraphBreaks
 237                 && m_pEndPos->GetNode().IsTextNode() // ooo27109-1.sxw
 238                 // only merge if next node is also text node
 239                 && m_pEndPos->GetNodes()[m_pEndPos->GetNodeIndex()+1]->IsTextNode()
 240                 && hasHiddenItem(*m_pEndPos->GetNode().GetTextNode())
 241                 // no merge if there's a page break on any node
 242                 && !hasBreakBefore(*m_pEndPos->GetNodes()[m_pEndPos->GetNodeIndex()+1]->GetTextNode())
 243                 // first node, see SwTextFrame::GetBreak()
 244                 && !hasBreakAfter(*m_Start.GetNode().GetTextNode()))
 245             {
 246                 m_oParagraphBreak.emplace(
 247                     SwPosition(*m_pEndPos->GetNode().GetTextNode(), m_pEndPos->GetNode().GetTextNode()->Len()),
 248                     SwPosition(*m_pEndPos->GetNodes()[m_pEndPos->GetNodeIndex()+1]->GetTextNode(), 0));
 249                 m_pStartPos = &m_oParagraphBreak->first;
 250                 m_pEndPos = &m_oParagraphBreak->second;
 251                 return true;
 252             }
 253             else // nothing
 254             {
 255                 m_pStartPos = nullptr;
 256                 m_pEndPos = nullptr;
 257                 return false;
 258             }
 259         }
 260     }
 261 };
 262
 263 }
 264
 265 namespace sw {
 266
 267 std::unique_ptr<sw::MergedPara>
 268 CheckParaRedlineMerge(SwTextFrame & rFrame, SwTextNode & rTextNode,
 269        FrameMode const eMode)
 270 {
 271     if (!rFrame.getRootFrame()->HasMergedParas())
 272     {
 273         return nullptr;
 274     }
 275     bool bHaveRedlines(false);
 276     std::vector<SwTextNode *> nodes{ &rTextNode };
 277     std::vector<SwTableNode *> tables;
 278     std::vector<SwSectionNode *> sections;
 279     std::vector<sw::Extent> extents;
 280     OUStringBuffer mergedText;
 281     SwTextNode * pParaPropsNode(nullptr);
 282     SwTextNode * pNode(&rTextNode);
 283     sal_Int32 nLastEnd(0);
 284     for (auto iter = HideIterator(rTextNode,
 285                 rFrame.getRootFrame()->IsHideRedlines(),
 286                 rFrame.getRootFrame()->GetFieldmarkMode(),
 287                 rFrame.getRootFrame()->GetParagraphBreakMode());
 288             iter.Next(); )
 289     {
 290         SwPosition const*const pStart(iter.GetStartPos());
 291         SwPosition const*const pEnd(iter.GetEndPos());
 292         bHaveRedlines = true;
 293         assert(pNode != &rTextNode || &pStart->GetNode() == &rTextNode); // detect calls with wrong start node
 294         if (pStart->GetContentIndex() != nLastEnd) // not 0 so we eliminate adjacent deletes
 295         {
 296             extents.emplace_back(pNode, nLastEnd, pStart->GetContentIndex());
 297             mergedText.append(pNode->GetText().subView(nLastEnd, pStart->GetContentIndex() - nLastEnd));
 298         }
 299         if (&pEnd->GetNode() != pNode)
 300         {
 301             if (pNode == &rTextNode)
 302             {
 303                 pNode->SetRedlineMergeFlag(SwNode::Merge::First);
 304             } // else: was already set before
 305             int nLevel(0);
 306             for (SwNodeOffset j = pNode->GetIndex() + 1; j < pEnd->GetNodeIndex(); ++j)
 307             {
 308                 SwNode *const pTmp(pNode->GetNodes()[j]);
 309                 if (nLevel == 0)
 310                 {
 311                     if (pTmp->IsTextNode())
 312                     {
 313                         nodes.push_back(pTmp->GetTextNode());
 314                     }
 315                     else if (pTmp->IsTableNode())
 316                     {
 317                         tables.push_back(pTmp->GetTableNode());
 318                     }
 319                     else if (pTmp->IsSectionNode())
 320                     {
 321                         sections.push_back(pTmp->GetSectionNode());
 322                     }
 323                 }
 324                 if (pTmp->IsStartNode())
 325                 {
 326                     ++nLevel;
 327                 }
 328                 else if (pTmp->IsEndNode())
 329                 {
 330                     --nLevel;
 331                 }
 332                 pTmp->SetRedlineMergeFlag(SwNode::Merge::Hidden);
 333             }
 334             // note: in DelLastPara() case, the end node is not actually merged
 335             // and is likely a SwTableNode!
 336             if (!pEnd->GetNode().IsTextNode())
 337             {
 338                 assert(pEnd->GetNode() != pStart->GetNode());
 339                 // must set pNode too because it will mark the last node
 340                 pNode = nodes.back();
 341                 assert(pNode == pNode->GetNodes()[pEnd->GetNodeIndex() - 1]);
 342                 if (pNode != &rTextNode)
 343                 {   // something might depend on last merged one being NonFirst?
 344                     pNode->SetRedlineMergeFlag(SwNode::Merge::NonFirst);
 345                 }
 346                 nLastEnd = pNode->Len();
 347             }
 348             else
 349             {
 350                 pNode = pEnd->GetNode().GetTextNode();
 351                 nodes.push_back(pNode);
 352                 pNode->SetRedlineMergeFlag(SwNode::Merge::NonFirst);
 353                 nLastEnd = pEnd->GetContentIndex();
 354             }
 355         }
 356         else
 357         {
 358             nLastEnd = pEnd->GetContentIndex();
 359         }
 360     }
 361     if (pNode == &rTextNode)
 362     {
 363         if (rTextNode.GetRedlineMergeFlag() != SwNode::Merge::None)
 364         {
 365             rTextNode.SetRedlineMergeFlag(SwNode::Merge::None);
 366         }
 367     }
 368     // Reset flag of the following text node since we know it's not merged;
 369     // also any table/sections in between.
 370     // * the following SwTextNode is in same nodes section as pNode (nLevel=0)
 371     // * the start nodes that don't have a SwTextNode before them
 372     //   on their level, and their corresponding end nodes
 373     // * the first SwTextNode inside each start node of the previous point
 374     // Other (non-first) SwTextNodes in nested sections shouldn't be reset!
 375     int nLevel(0);
 376     for (SwNodeOffset j = pNode->GetIndex() + 1; j < pNode->GetNodes().Count(); ++j)
 377     {
 378         SwNode *const pTmp(pNode->GetNodes()[j]);
 379         if (!pTmp->IsCreateFrameWhenHidingRedlines())
 380         {   // clear stale flag caused by editing with redlines shown
 381             pTmp->SetRedlineMergeFlag(SwNode::Merge::None);
 382         }
 383         if (pTmp->IsStartNode())
 384         {
 385             ++nLevel;
 386         }
 387         else if (pTmp->IsEndNode())
 388         {
 389             if (nLevel == 0)
 390             {
 391                 break; // there is no following text node; avoid leaving section
 392             }
 393             --nLevel;
 394         }
 395         else if (pTmp->IsTextNode())
 396         {
 397             if (nLevel == 0)
 398             {
 399                 break; // done
 400             }
 401             else
 402             {   // skip everything other than 1st text node in section!
 403                 j = pTmp->EndOfSectionIndex() - 1; // will be incremented again
 404             }
 405         }
 406     }
 407     if (!bHaveRedlines)
 408     {
 409         if (rTextNode.IsInList() && !rTextNode.GetNum(rFrame.getRootFrame()))
 410         {
 411             rTextNode.AddToListRLHidden(); // try to add it...
 412         }
 413         return nullptr;
 414     }
 415     if (nLastEnd != pNode->Len())
 416     {
 417         extents.emplace_back(pNode, nLastEnd, pNode->Len());
 418         mergedText.append(pNode->GetText().subView(nLastEnd, pNode->Len() - nLastEnd));
 419     }
 420     if (extents.empty()) // there was no text anywhere
 421     {
 422         assert(mergedText.isEmpty());
 423         pParaPropsNode = pNode; // if every node is empty, the last one wins
 424     }
 425     else
 426     {
 427         assert(!mergedText.isEmpty());
 428         pParaPropsNode = extents.begin()->pNode; // para props from first node that isn't empty
 429     }
 430 //    pParaPropsNode = &rTextNode; // well, actually...
 431     // keep lists up to date with visible nodes
 432     if (pParaPropsNode->IsInList() && !pParaPropsNode->GetNum(rFrame.getRootFrame()))
 433     {
 434         pParaPropsNode->AddToListRLHidden(); // try to add it...
 435     }
 436     for (auto const pTextNode : nodes)
 437     {
 438         if (pTextNode != pParaPropsNode)
 439         {
 440             pTextNode->RemoveFromListRLHidden();
 441         }
 442     }
 443     if (eMode == FrameMode::Existing)
 444     {
 445         // remove existing footnote frames for first node;
 446         // for non-first nodes with own frames, DelFrames will remove all
 447         // (could possibly call lcl_ChangeFootnoteRef, not sure if worth it)
 448         // note: must be done *before* changing listeners!
 449         // for non-first nodes that are already merged with this frame,
 450         // need to remove here too, otherwise footnotes can be removed only
 451         // by lucky accident, e.g. TruncLines().
 452         auto itExtent(extents.begin());
 453         for (auto const pTextNode : nodes)
 454         {
 455             sal_Int32 nLast(0);
 456             std::vector<std::pair<sal_Int32, sal_Int32>> hidden;
 457             for ( ; itExtent != extents.end(); ++itExtent)
 458             {
 459                 if (itExtent->pNode != pTextNode)
 460                 {
 461                     break;
 462                 }
 463                 if (itExtent->nStart != 0)
 464                 {
 465                     assert(itExtent->nStart != nLast);
 466                     hidden.emplace_back(nLast, itExtent->nStart);
 467                 }
 468                 nLast = itExtent->nEnd;
 469             }
 470             if (nLast != pTextNode->Len())
 471             {
 472                 hidden.emplace_back(nLast, pTextNode->Len());
 473             }
 474             sw::RemoveFootnotesForNode(*rFrame.getRootFrame(), *pTextNode, &hidden);
 475         }
 476         // unfortunately DelFrames() must be done before StartListening too,
 477         // otherwise footnotes cannot be deleted by SwTextFootnote::DelFrames!
 478         auto const end(--nodes.rend());
 479         for (auto iter = nodes.rbegin(); iter != end; ++iter)
 480         {
 481             (**iter).DelFrames(rFrame.getRootFrame());
 482         }
 483         // also delete tables & sections here; not necessary, but convenient
 484         for (auto const pTableNode : tables)
 485         {
 486             pTableNode->DelFrames(rFrame.getRootFrame());
 487         }
 488         for (auto const pSectionNode : sections)
 489         {
 490             pSectionNode->GetSection().GetFormat()->DelFrames(/*rFrame.getRootFrame()*/);
 491         }
 492     }
 493     auto pRet(std::make_unique<sw::MergedPara>(rFrame, std::move(extents),
 494                 mergedText.makeStringAndClear(), pParaPropsNode, &rTextNode,
 495                 nodes.back()));
 496     for (SwTextNode * pTmp : nodes)
 497     {
 498         pRet->listener.StartListening(pTmp);
 499     }
 500     rFrame.EndListeningAll();
 501     return pRet;
 502 }
 503
 504 } // namespace sw
 505
 506 void SwAttrIter::InitFontAndAttrHandler(
 507         SwTextNode const& rPropsNode,
 508         SwTextNode const& rTextNode,
 509         std::u16string_view aText,
 510         bool const*const pbVertLayout,
 511         bool const*const pbVertLayoutLRBT)
 512 {
 513     // Build a font matching the default paragraph style:
 514     SwFontAccess aFontAccess( &rPropsNode.GetAnyFormatColl(), m_pViewShell );
 515     // It is possible that Init is called more than once, e.g., in a
 516     // SwTextFrame::FormatOnceMore situation or (since sw_redlinehide)
 517     // from SwAttrIter::Seek(); in the latter case SwTextSizeInfo::m_pFnt
 518     // is an alias of m_pFont so it must not be deleted!
 519     if (m_pFont)
 520     {
 521         *m_pFont = aFontAccess.Get()->GetFont();
 522     }
 523     else
 524     {
 525         m_pFont = new SwFont( aFontAccess.Get()->GetFont() );
 526     }
 527
 528     // set font to vertical if frame layout is vertical
 529     // if it's a re-init, the vert flag never changes
 530     bool bVertLayoutLRBT = false;
 531     if (pbVertLayoutLRBT)
 532         bVertLayoutLRBT = *pbVertLayoutLRBT;
 533     if (pbVertLayout ? *pbVertLayout : m_aAttrHandler.IsVertLayout())
 534     {
 535         m_pFont->SetVertical(m_pFont->GetOrientation(), true, bVertLayoutLRBT);
 536     }
 537
 538     // Initialize the default attribute of the attribute handler
 539     // based on the attribute array cached together with the font.
 540     // If any further attributes for the paragraph are given in pAttrSet
 541     // consider them during construction of the default array, and apply
 542     // them to the font
 543     m_aAttrHandler.Init(aFontAccess.Get()->GetDefault(), rTextNode.GetpSwAttrSet(),
 544            *rTextNode.getIDocumentSettingAccess(), m_pViewShell, *m_pFont,
 545            pbVertLayout ? *pbVertLayout : m_aAttrHandler.IsVertLayout(),
 546            bVertLayoutLRBT );
 547
 548     m_aFontCacheIds[SwFontScript::Latin] = m_aFontCacheIds[SwFontScript::CJK] = m_aFontCacheIds[SwFontScript::CTL] = nullptr;
 549
 550     assert(g_pBreakIt && g_pBreakIt->GetBreakIter().is());
 551
 552     m_pFont->SetActual( m_pScriptInfo->WhichFont(TextFrameIndex(0)) );
 553
 554     TextFrameIndex nChg(0);
 555     size_t nCnt = 0;
 556
 557     do
 558     {
 559         if ( nCnt >= m_pScriptInfo->CountScriptChg() )
 560             break;
 561         nChg = m_pScriptInfo->GetScriptChg( nCnt );
 562         SwFontScript nTmp = SW_SCRIPTS;
 563         switch ( m_pScriptInfo->GetScriptType( nCnt++ ) ) {
 564             case i18n::ScriptType::ASIAN :
 565                 if( !m_aFontCacheIds[SwFontScript::CJK] ) nTmp = SwFontScript::CJK;
 566                 break;
 567             case i18n::ScriptType::COMPLEX :
 568                 if( !m_aFontCacheIds[SwFontScript::CTL] ) nTmp = SwFontScript::CTL;
 569                 break;
 570             default:
 571                 if( !m_aFontCacheIds[SwFontScript::Latin ] ) nTmp = SwFontScript::Latin;
 572         }
 573         if( nTmp < SW_SCRIPTS )
 574         {
 575             m_pFont->CheckFontCacheId( m_pViewShell, nTmp );
 576             m_pFont->GetFontCacheId( m_aFontCacheIds[ nTmp ], m_aFontIdx[ nTmp ], nTmp );
 577         }
 578     }
 579     while (nChg < TextFrameIndex(aText.size()));
 580 }
 581
 582 void SwAttrIter::CtorInitAttrIter(SwTextNode & rTextNode,
 583         SwScriptInfo & rScriptInfo, SwTextFrame const*const pFrame)
 584 {
 585     // during HTML-Import it can happen, that no layout exists
 586     SwRootFrame* pRootFrame = rTextNode.getIDocumentLayoutAccess().GetCurrentLayout();
 587     m_pViewShell = pRootFrame ? pRootFrame->GetCurrShell() : nullptr;
 588
 589     m_pScriptInfo = &rScriptInfo;
 590
 591     // set font to vertical if frame layout is vertical
 592     bool bVertLayout = false;
 593     bool bVertLayoutLRBT = false;
 594     bool bRTL = false;
 595     if ( pFrame )
 596     {
 597         if ( pFrame->IsVertical() )
 598         {
 599             bVertLayout = true;
 600         }
 601         if (pFrame->IsVertLRBT())
 602         {
 603             bVertLayoutLRBT = true;
 604         }
 605         bRTL = pFrame->IsRightToLeft();
 606         m_pMergedPara = pFrame->GetMergedPara();
 607     }
 608
 609     // determine script changes if not already done for current paragraph
 610     assert(m_pScriptInfo);
 611     if (m_pScriptInfo->GetInvalidityA() != TextFrameIndex(COMPLETE_STRING))
 612          m_pScriptInfo->InitScriptInfo(rTextNode, m_pMergedPara, bRTL);
 613
 614     InitFontAndAttrHandler(
 615             m_pMergedPara ? *m_pMergedPara->pParaPropsNode : rTextNode,
 616             rTextNode,
 617             m_pMergedPara ? m_pMergedPara->mergedText : rTextNode.GetText(),
 618             & bVertLayout,
 619             & bVertLayoutLRBT);
 620
 621     m_nStartIndex = m_nEndIndex = m_nPosition = m_nChgCnt = 0;
 622     m_nPropFont = 0;
 623     SwDoc& rDoc = rTextNode.GetDoc();
 624     const IDocumentRedlineAccess& rIDRA = rTextNode.getIDocumentRedlineAccess();
 625
 626     // sw_redlinehide: this is a Ring - pExtInp is the first PaM that's inside
 627     // the node.  It's not clear whether there can be more than 1 PaM in the
 628     // Ring, and this code doesn't handle that case; neither did the old code.
 629     const SwExtTextInput* pExtInp = rDoc.GetExtTextInput( rTextNode );
 630     if (!pExtInp && m_pMergedPara)
 631     {
 632         SwTextNode const* pNode(&rTextNode);
 633         for (auto const& rExtent : m_pMergedPara->extents)
 634         {
 635             if (rExtent.pNode != pNode)
 636             {
 637                 pNode = rExtent.pNode;
 638                 pExtInp = rDoc.GetExtTextInput(*pNode);
 639                 if (pExtInp)
 640                     break;
 641             }
 642         }
 643     }
 644     const bool bShow = IDocumentRedlineAccess::IsShowChanges(rIDRA.GetRedlineFlags())
 645         && pRootFrame && !pRootFrame->IsHideRedlines();
 646     if (!(pExtInp || m_pMergedPara || bShow))
 647         return;
 648
 649     SwRedlineTable::size_type nRedlPos = rIDRA.GetRedlinePos( rTextNode, RedlineType::Any );
 650     if (SwRedlineTable::npos == nRedlPos && m_pMergedPara)
 651     {
 652         SwTextNode const* pNode(&rTextNode);
 653         for (auto const& rExtent : m_pMergedPara->extents)
 654         {   // note: have to search because extents based only on Delete
 655             if (rExtent.pNode != pNode)
 656             {
 657                 pNode = rExtent.pNode;
 658                 nRedlPos = rIDRA.GetRedlinePos(*pNode, RedlineType::Any);
 659                 if (SwRedlineTable::npos != nRedlPos)
 660                     break;
 661             }
 662         }
 663         // TODO this is true initially but after delete ops it may be false... need to delete m_pMerged somewhere?
 664         // assert(SwRedlineTable::npos != nRedlPos);
 665         // false now with fieldmarks
 666         assert(!pRootFrame
 667             || pRootFrame->GetFieldmarkMode() != sw::FieldmarkMode::ShowBoth
 668             || SwRedlineTable::npos != nRedlPos || m_pMergedPara->extents.size() <= 1);
 669     }
 670     if (!(pExtInp || m_pMergedPara || SwRedlineTable::npos != nRedlPos))
 671         return;
 672
 673     const std::vector<ExtTextInputAttr> *pArr = nullptr;
 674     if( pExtInp )
 675     {
 676         pArr = &pExtInp->GetAttrs();
 677         Seek( TextFrameIndex(0) );
 678     }
 679
 680     m_pRedline.reset(new SwRedlineItr( rTextNode, *m_pFont, m_aAttrHandler, nRedlPos,
 681                     (pRootFrame && pRootFrame->IsHideRedlines())
 682                         ? SwRedlineItr::Mode::Hide
 683                         : bShow
 684                             ? SwRedlineItr::Mode::Show
 685                             : SwRedlineItr::Mode::Ignore,
 686                     pArr, pExtInp ? pExtInp->Start() : nullptr));
 687
 688     if( m_pRedline->IsOn() )
 689         ++m_nChgCnt;
 690 }
 691
 692 // The Redline-Iterator
 693 // The following information/states exist in RedlineIterator:
 694 //
 695 // m_nFirst is the first index of RedlineTable, which overlaps with the paragraph.
 696 //
 697 // m_nAct is the currently active (if m_bOn is set) or the next possible index.
 698 // m_nStart and m_nEnd give you the borders of the object within the paragraph.
 699 //
 700 // If m_bOn is set, the font has been manipulated according to it.
 701 //
 702 // If m_nAct is set to SwRedlineTable::npos (via Reset()), then currently no
 703 // Redline is active, m_nStart and m_nEnd are invalid.
 704 SwRedlineItr::SwRedlineItr( const SwTextNode& rTextNd, SwFont& rFnt,
 705                             SwAttrHandler& rAH, sal_Int32 nRed,
 706                             Mode const mode,
 707                             const std::vector<ExtTextInputAttr> *pArr,
 708                             SwPosition const*const pExtInputStart)
 709     : m_rDoc( rTextNd.GetDoc() )
 710     , m_rAttrHandler( rAH )
 711     , m_nNdIdx( rTextNd.GetIndex() )
 712     , m_nFirst( nRed )
 713     , m_nAct( SwRedlineTable::npos )
 714     , m_nStart( COMPLETE_STRING )
 715     , m_nEnd( COMPLETE_STRING )
 716     , m_bOn( false )
 717     , m_eMode( mode )
 718 {
 719     if( pArr )
 720     {
 721         assert(pExtInputStart);
 722         m_pExt.reset( new SwExtend(*pArr, pExtInputStart->GetNodeIndex(),
 723                                      pExtInputStart->GetContentIndex()) );
 724     }
 725     else
 726         m_pExt = nullptr;
 727     assert(m_pExt || m_eMode != Mode::Ignore); // only create if necessary
 728     Seek(rFnt, m_nNdIdx, 0, COMPLETE_STRING);
 729 }
 730
 731 SwRedlineItr::~SwRedlineItr() COVERITY_NOEXCEPT_FALSE
 732 {
 733     Clear( nullptr );
 734     m_pExt.reset();
 735 }
 736
 737 // The return value of SwRedlineItr::Seek tells you if the current font
 738 // has been manipulated by leaving (-1) or accessing (+1) of a section
 739 short SwRedlineItr::Seek(SwFont& rFnt,
 740         SwNodeOffset const nNode, sal_Int32 const nNew, sal_Int32 const nOld)
 741 {
 742     short nRet = 0;
 743     if( ExtOn() )
 744         return 0; // Abbreviation: if we're within an ExtendTextInputs
 745                   // there can't be other changes of attributes (not even by redlining)
 746     if (m_eMode == Mode::Show)
 747     {
 748         if (m_bOn)
 749         {
 750             if (nNew >= m_nEnd)
 751             {
 752                 --nRet;
 753                 Clear_( &rFnt );    // We go behind the current section
 754                 ++m_nAct;             // and check the next one
 755             }
 756             else if (nNew < m_nStart)
 757             {
 758                 --nRet;
 759                 Clear_( &rFnt );    // We go in front of the current section
 760                 if (m_nAct > m_nFirst)
 761                     m_nAct = m_nFirst;  // the test has to run from the beginning
 762                 else
 763                     return nRet + EnterExtend(rFnt, nNode, nNew); // There's none prior to us
 764             }
 765             else
 766                 return nRet + EnterExtend(rFnt, nNode, nNew); // We stayed in the same section
 767         }
 768         if (SwRedlineTable::npos == m_nAct || nOld > nNew)
 769             m_nAct = m_nFirst;
 770
 771         m_nStart = COMPLETE_STRING;
 772         m_nEnd = COMPLETE_STRING;
 773         const SwRedlineTable& rTable = m_rDoc.getIDocumentRedlineAccess().GetRedlineTable();
 774
 775         for ( ; m_nAct < rTable.size() ; ++m_nAct)
 776         {
 777             rTable[ m_nAct ]->CalcStartEnd(nNode, m_nStart, m_nEnd);
 778
 779             if (nNew < m_nEnd)
 780             {
 781                 if (nNew >= m_nStart) // only possible candidate
 782                 {
 783                     m_bOn = true;
 784                     const SwRangeRedline *pRed = rTable[ m_nAct ];
 785
 786                     if (m_pSet)
 787                         m_pSet->ClearItem();
 788                     else
 789                     {
 790                         SwAttrPool& rPool =
 791                             const_cast<SwDoc&>(m_rDoc).GetAttrPool();
 792                         m_pSet = std::make_unique<SfxItemSetFixed<RES_CHRATR_BEGIN, RES_CHRATR_END-1>>(rPool);
 793                     }
 794
 795                     if( 1 < pRed->GetStackCount() )
 796                         FillHints( pRed->GetAuthor( 1 ), pRed->GetType( 1 ) );
 797                     FillHints( pRed->GetAuthor(), pRed->GetType() );
 798
 799                     SfxWhichIter aIter( *m_pSet );
 800
 801                     // moved text: dark green with double underline or strikethrough
 802                     if ( pRed->IsMoved() )
 803                     {
 804                         m_pSet->Put(SvxColorItem( COL_GREEN, RES_CHRATR_COLOR ));
 805                         if (SfxItemState::SET == m_pSet->GetItemState(RES_CHRATR_CROSSEDOUT, true))
 806                             m_pSet->Put(SvxCrossedOutItem( STRIKEOUT_DOUBLE, RES_CHRATR_CROSSEDOUT ));
 807                         else
 808                             m_pSet->Put(SvxUnderlineItem( LINESTYLE_DOUBLE, RES_CHRATR_UNDERLINE ));
 809                     }
 810
 811                     sal_uInt16 nWhich = aIter.FirstWhich();
 812                     while( nWhich )
 813                     {
 814                         const SfxPoolItem* pItem;
 815                         if( ( nWhich < RES_CHRATR_END ) &&
 816                             ( SfxItemState::SET == aIter.GetItemState( true, &pItem ) ) )
 817                         {
 818                             SwTextAttr* pAttr = MakeRedlineTextAttr(
 819                                 const_cast<SwDoc&>(m_rDoc),
 820                                 *const_cast<SfxPoolItem*>(pItem) );
 821                             pAttr->SetPriorityAttr( true );
 822                             m_Hints.push_back(pAttr);
 823                             m_rAttrHandler.PushAndChg( *pAttr, rFnt );
 824                         }
 825                         nWhich = aIter.NextWhich();
 826                     }
 827
 828                     ++nRet;
 829                 }
 830                 break;
 831             }
 832             m_nStart = COMPLETE_STRING;
 833             m_nEnd = COMPLETE_STRING;
 834         }
 835     }
 836     else if (m_eMode == Mode::Hide)
 837     {   // ... just iterate to update m_nAct for GetNextRedln();
 838         // there is no need to care about formatting in this mode
 839         if (m_nAct == SwRedlineTable::npos || nOld == COMPLETE_STRING)
 840         {   // reset, or move backward
 841             m_nAct = m_nFirst;
 842         }
 843         for ( ; m_nAct < m_rDoc.getIDocumentRedlineAccess().GetRedlineTable().size(); ++m_nAct)
 844         {   // only Start matters in this mode
 845             // Seeks until it finds a RL that starts at or behind the seek pos.
 846             // - then update m_nStart/m_nEnd to the intersection of it with the
 847             // current node (if any).
 848             // The only way to skip to a different node is if there is a Delete
 849             // RL, so if there is no intersection we'll never skip again.
 850             // Note: here, assume that delete can't nest inside delete!
 851             SwRangeRedline const*const pRedline(
 852                 m_rDoc.getIDocumentRedlineAccess().GetRedlineTable()[m_nAct]);
 853             SwPosition const*const pStart(pRedline->Start());
 854             if (pRedline->GetType() == RedlineType::Delete
 855                 && (nNode < pStart->GetNodeIndex()
 856                     || (nNode == pStart->GetNodeIndex()
 857                         && nNew <= pStart->GetContentIndex())))
 858             {
 859                 pRedline->CalcStartEnd(nNode, m_nStart, m_nEnd);
 860                 break;
 861             }
 862             m_nStart = COMPLETE_STRING;
 863             m_nEnd = COMPLETE_STRING;
 864         }
 865     }
 866     return nRet + EnterExtend(rFnt, nNode, nNew);
 867 }
 868
 869 void SwRedlineItr::FillHints( std::size_t nAuthor, RedlineType eType )
 870 {
 871     switch ( eType )
 872     {
 873         case RedlineType::Insert:
 874             SW_MOD()->GetInsertAuthorAttr(nAuthor, *m_pSet);
 875             break;
 876         case RedlineType::Delete:
 877             SW_MOD()->GetDeletedAuthorAttr(nAuthor, *m_pSet);
 878             break;
 879         case RedlineType::Format:
 880         case RedlineType::FmtColl:
 881             SW_MOD()->GetFormatAuthorAttr(nAuthor, *m_pSet);
 882             break;
 883         default:
 884             break;
 885     }
 886 }
 887
 888 void SwRedlineItr::ChangeTextAttr( SwFont* pFnt, SwTextAttr const &rHt, bool bChg )
 889 {
 890     OSL_ENSURE( IsOn(), "SwRedlineItr::ChangeTextAttr: Off?" );
 891
 892     if (m_eMode != Mode::Show && !m_pExt)
 893         return;
 894
 895     if( bChg )
 896     {
 897         if (m_pExt && m_pExt->IsOn())
 898             m_rAttrHandler.PushAndChg( rHt, *m_pExt->GetFont() );
 899         else
 900             m_rAttrHandler.PushAndChg( rHt, *pFnt );
 901     }
 902     else
 903     {
 904         OSL_ENSURE( ! m_pExt || ! m_pExt->IsOn(), "Pop of attribute during opened extension" );
 905         m_rAttrHandler.PopAndChg( rHt, *pFnt );
 906     }
 907 }
 908
 909 void SwRedlineItr::Clear_( SwFont* pFnt )
 910 {
 911     OSL_ENSURE( m_bOn, "SwRedlineItr::Clear: Off?" );
 912     m_bOn = false;
 913     for (auto const& hint : m_Hints)
 914     {
 915         if( pFnt )
 916             m_rAttrHandler.PopAndChg( *hint, *pFnt );
 917         else
 918             m_rAttrHandler.Pop( *hint );
 919         SwTextAttr::Destroy(hint, const_cast<SwDoc&>(m_rDoc).GetAttrPool() );
 920     }
 921     m_Hints.clear();
 922 }
 923
 924 /// Ignore mode: does nothing.
 925 /// Show mode: returns end of redline if currently in one, or start of next
 926 /// Hide mode: returns start of next redline in current node, plus (if it's a
 927 ///            Delete) its end position and number of consecutive RLs
 928 std::pair<sal_Int32, std::pair<SwRangeRedline const*, size_t>>
 929 SwRedlineItr::GetNextRedln(sal_Int32 nNext, SwTextNode const*const pNode,
 930         SwRedlineTable::size_type & rAct)
 931 {
 932     sal_Int32 nStart(m_nStart);
 933     sal_Int32 nEnd(m_nEnd);
 934     nNext = NextExtend(pNode->GetIndex(), nNext);
 935     if (m_eMode == Mode::Ignore || SwRedlineTable::npos == m_nFirst)
 936         return std::make_pair(nNext, std::make_pair(nullptr, 0));
 937     if (SwRedlineTable::npos == rAct)
 938     {
 939         rAct = m_nFirst;
 940     }
 941     if (rAct != m_nAct)
 942     {
 943         while (rAct < m_rDoc.getIDocumentRedlineAccess().GetRedlineTable().size())
 944         {
 945             SwRangeRedline const*const pRedline(
 946                     m_rDoc.getIDocumentRedlineAccess().GetRedlineTable()[rAct]);
 947             pRedline->CalcStartEnd(pNode->GetIndex(), nStart, nEnd);
 948             if (m_eMode != Mode::Hide
 949                 || pRedline->GetType() == RedlineType::Delete)
 950             {
 951                 break;
 952             }
 953             ++rAct; // Hide mode: search a Delete RL
 954         }
 955     }
 956     if (rAct == m_rDoc.getIDocumentRedlineAccess().GetRedlineTable().size())
 957     {
 958         return std::make_pair(nNext, std::make_pair(nullptr, 0)); // no Delete here
 959     }
 960     if (m_bOn || (m_eMode == Mode::Show && nStart == 0))
 961     {   // in Ignore mode, the end of redlines isn't relevant, except as returned in the second in the pair!
 962         if (nEnd < nNext)
 963             nNext = nEnd;
 964     }
 965     else if (nStart <= nNext)
 966     {
 967         if (m_eMode == Mode::Show)
 968         {
 969             nNext = nStart;
 970         }
 971         else
 972         {
 973             assert(m_eMode == Mode::Hide);
 974             SwRangeRedline const* pRedline(
 975                     m_rDoc.getIDocumentRedlineAccess().GetRedlineTable()[rAct]);
 976             assert(pRedline->GetType() == RedlineType::Delete); //?
 977             if (pRedline->GetType() == RedlineType::Delete)
 978             {
 979                 nNext = nStart;
 980                 size_t nSkipped(1); // (consecutive) candidates to be skipped
 981                 while (rAct + nSkipped <
 982                        m_rDoc.getIDocumentRedlineAccess().GetRedlineTable().size())
 983                 {
 984                     SwRangeRedline const*const pNext =
 985                         m_rDoc.getIDocumentRedlineAccess().GetRedlineTable()[rAct + nSkipped];
 986                     if (*pRedline->End() < *pNext->Start())
 987                     {
 988                         break; // done for now
 989                     }
 990                     else if (*pNext->Start() == *pRedline->End() &&
 991                             pNext->GetType() == RedlineType::Delete)
 992                     {
 993                         // consecutive delete - continue
 994                         pRedline = pNext;
 995                     }
 996                     ++nSkipped;
 997                 }
 998                 return std::make_pair(nNext, std::make_pair(pRedline, nSkipped));
 999             }
1000         }
1001     }
1002     return std::make_pair(nNext, std::make_pair(nullptr, 0));
1003 }
1004
1005 bool SwRedlineItr::ChkSpecialUnderline_() const
1006 {
1007     // If the underlining or the escapement is caused by redlining,
1008     // we always apply the SpecialUnderlining, i.e. the underlining
1009     // below the base line
1010     for (SwTextAttr* pHint : m_Hints)
1011     {
1012         const sal_uInt16 nWhich = pHint->Which();
1013         if( RES_CHRATR_UNDERLINE == nWhich ||
1014             RES_CHRATR_ESCAPEMENT == nWhich )
1015             return true;
1016     }
1017     return false;
1018 }
1019
1020 bool SwRedlineItr::CheckLine(
1021         SwNodeOffset const nStartNode, sal_Int32 const nChkStart,
1022         SwNodeOffset const nEndNode, sal_Int32 nChkEnd, OUString& rRedlineText,
1023         bool& bRedlineEnd, RedlineType& eRedlineEnd, size_t* pAuthorAtPos)
1024 {
1025     // note: previously this would return true in the (!m_bShow && m_pExt)
1026     // case, but surely that was a bug?
1027     if (m_nFirst == SwRedlineTable::npos || m_eMode != Mode::Show)
1028         return false;
1029     if( nChkEnd == nChkStart && pAuthorAtPos == nullptr ) // empty lines look one char further
1030         ++nChkEnd;
1031     sal_Int32 nOldStart = m_nStart;
1032     sal_Int32 nOldEnd = m_nEnd;
1033     SwRedlineTable::size_type const nOldAct = m_nAct;
1034     bool bRet = bRedlineEnd = false;
1035     eRedlineEnd = RedlineType::None;
1036
1037     SwPosition const start(*m_rDoc.GetNodes()[nStartNode]->GetContentNode(), nChkStart);
1038     SwPosition const end(*m_rDoc.GetNodes()[nEndNode]->GetContentNode(), nChkEnd);
1039     SwRangeRedline const* pPrevRedline = nullptr;
1040     bool isBreak(false);
1041     for (m_nAct = m_nFirst; m_nAct < m_rDoc.getIDocumentRedlineAccess().GetRedlineTable().size(); ++m_nAct)
1042     {
1043         SwRangeRedline const*const pRedline(
1044             m_rDoc.getIDocumentRedlineAccess().GetRedlineTable()[ m_nAct ] );
1045         // collect text of the hidden redlines at the end of the line
1046         bool isExtendText(false);
1047         switch (ComparePosition(*pRedline->Start(), *pRedline->End(), start, end))
1048         {
1049             case SwComparePosition::Behind:
1050                 isBreak = true;
1051                 break;
1052             case SwComparePosition::OverlapBehind:
1053             case SwComparePosition::CollideStart:
1054             case SwComparePosition::Outside:
1055             case SwComparePosition::Equal:
1056                 // store redlining at line end (for line break formatting)
1057                 eRedlineEnd = pRedline->GetType();
1058                 bRedlineEnd = true;
1059                 isBreak = true;
1060                 if (pAuthorAtPos)
1061                     *pAuthorAtPos = pRedline->GetAuthor();
1062                 [[fallthrough]];
1063             case SwComparePosition::OverlapBefore:
1064             case SwComparePosition::CollideEnd:
1065             case SwComparePosition::Inside:
1066             {
1067                 bRet = true;
1068                 // start to collect text of invisible redlines for ChangesInMargin layout
1069                 if (rRedlineText.isEmpty() && !pRedline->IsVisible())
1070                 {
1071                     rRedlineText = const_cast<SwRangeRedline*>(pRedline)->GetDescr(/*bSimplified=*/true);
1072                     pPrevRedline = pRedline;
1073                     isExtendText = true;
1074                 }
1075                 // join the text of the next invisible redlines in the same position
1076                 // i.e. characters deleted by pressing backspace or delete
1077                 else if (pPrevRedline && !pRedline->IsVisible() &&
1078                     *pRedline->Start() == *pPrevRedline->Start() && *pRedline->End() == *pPrevRedline->End() )
1079                 {
1080                     OUString sExtendText(const_cast<SwRangeRedline*>(pRedline)->GetDescr(/*bSimplified=*/true));
1081                     if (!sExtendText.isEmpty())
1082                     {
1083                         if (rRedlineText.getLength() < 12)
1084                         {
1085                             // TODO: remove extra space from GetDescr(true),
1086                             // but show deletion of paragraph or line break
1087                             rRedlineText = rRedlineText +
1088                                     const_cast<SwRangeRedline*>(pRedline)->GetDescr(/*bSimplified=*/true).subView(1);
1089                         }
1090                         else
1091                             rRedlineText = OUString::Concat(rRedlineText.subView(0, rRedlineText.getLength() - 3)) + "...";
1092                     }
1093                     isExtendText = true;
1094                 }
1095                 break;
1096             }
1097             case SwComparePosition::Before:
1098                 break; // -Werror=switch
1099         }
1100         if (isBreak && !isExtendText)
1101         {
1102             break;
1103         }
1104     }
1105
1106     m_nStart = nOldStart;
1107     m_nEnd = nOldEnd;
1108     m_nAct = nOldAct;
1109     return bRet;
1110 }
1111
1112 void SwExtend::ActualizeFont( SwFont &rFnt, ExtTextInputAttr nAttr )
1113 {
1114     if ( nAttr & ExtTextInputAttr::Underline )
1115         rFnt.SetUnderline( LINESTYLE_SINGLE );
1116     else if ( nAttr & ExtTextInputAttr::DoubleUnderline )
1117         rFnt.SetUnderline( LINESTYLE_DOUBLE );
1118     else if ( nAttr & ExtTextInputAttr::BoldUnderline )
1119         rFnt.SetUnderline( LINESTYLE_BOLD );
1120     else if ( nAttr & ExtTextInputAttr::DottedUnderline )
1121         rFnt.SetUnderline( LINESTYLE_DOTTED );
1122     else if ( nAttr & ExtTextInputAttr::DashDotUnderline )
1123         rFnt.SetUnderline( LINESTYLE_DOTTED );
1124
1125     if ( nAttr & ExtTextInputAttr::RedText )
1126         rFnt.SetColor( COL_RED );
1127
1128     if ( nAttr & ExtTextInputAttr::Highlight )
1129     {
1130         const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
1131         rFnt.SetColor( rStyleSettings.GetHighlightTextColor() );
1132         rFnt.SetBackColor( rStyleSettings.GetHighlightColor() );
1133     }
1134     if ( nAttr & ExtTextInputAttr::GrayWaveline )
1135         rFnt.SetGreyWave( true );
1136 }
1137
1138 short SwExtend::Enter(SwFont& rFnt, SwNodeOffset const nNode, sal_Int32 const nNew)
1139 {
1140     OSL_ENSURE( !m_pFont, "SwExtend: Enter with Font" );
1141     if (nNode != m_nNode)
1142         return 0;
1143     OSL_ENSURE( !Inside(), "SwExtend: Enter without Leave" );
1144     m_nPos = nNew;
1145     if( Inside() )
1146     {
1147         m_pFont.reset( new SwFont(rFnt) );
1148         ActualizeFont( rFnt, m_rArr[m_nPos - m_nStart] );
1149         return 1;
1150     }
1151     return 0;
1152 }
1153
1154 bool SwExtend::Leave_(SwFont& rFnt, SwNodeOffset const nNode, sal_Int32 const nNew)
1155 {
1156     OSL_ENSURE(nNode == m_nNode && Inside(), "SwExtend: Leave without Enter");
1157     if (nNode != m_nNode)
1158         return true;
1159     const ExtTextInputAttr nOldAttr = m_rArr[m_nPos - m_nStart];
1160     m_nPos = nNew;
1161     if( Inside() )
1162     {   // We stayed within the ExtendText-section
1163         const ExtTextInputAttr nAttr = m_rArr[m_nPos - m_nStart];
1164         if( nOldAttr != nAttr ) // Is there an (inner) change of attributes?
1165         {
1166             rFnt = *m_pFont;
1167             ActualizeFont( rFnt, nAttr );
1168         }
1169     }
1170     else
1171     {
1172         rFnt = *m_pFont;
1173         m_pFont.reset();
1174         return true;
1175     }
1176     return false;
1177 }
1178
1179 sal_Int32 SwExtend::Next(SwNodeOffset const nNode, sal_Int32 nNext)
1180 {
1181     if (nNode != m_nNode)
1182         return nNext;
1183     if (m_nPos < m_nStart)
1184     {
1185         if (nNext > m_nStart)
1186             nNext = m_nStart;
1187     }
1188     else if (m_nPos < m_nEnd)
1189     {
1190         sal_Int32 nIdx = m_nPos - m_nStart;
1191         const ExtTextInputAttr nAttr = m_rArr[ nIdx ];
1192         while (o3tl::make_unsigned(++nIdx) < m_rArr.size() && nAttr == m_rArr[nIdx])
1193             ; //nothing
1194         nIdx = nIdx + m_nStart;
1195         if( nNext > nIdx )
1196             nNext = nIdx;
1197     }
1198     return nNext;
1199 }
1200
1201 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */