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Diffstat (limited to 'sw/source/core/layout/laycache.cxx')
| -rw-r--r-- | sw/source/core/layout/laycache.cxx | 1205 |
1 files changed, 1205 insertions, 0 deletions
diff --git a/sw/source/core/layout/laycache.cxx b/sw/source/core/layout/laycache.cxx new file mode 100644 index 000000000..d7c9cc72f --- /dev/null +++ b/sw/source/core/layout/laycache.cxx @@ -0,0 +1,1205 @@ +/* -*- 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 <editeng/formatbreakitem.hxx> +#include <sal/log.hxx> +#include <tools/stream.hxx> +#include <doc.hxx> +#include <IDocumentStatistics.hxx> +#include <IDocumentLayoutAccess.hxx> +#include <docstat.hxx> +#include <docary.hxx> +#include <fmtpdsc.hxx> +#include <laycache.hxx> +#include "layhelp.hxx" +#include <pagefrm.hxx> +#include <rootfrm.hxx> +#include <txtfrm.hxx> +#include <swtable.hxx> +#include <tabfrm.hxx> +#include <rowfrm.hxx> +#include <sectfrm.hxx> +#include <fmtcntnt.hxx> +#include <pagedesc.hxx> +#include <frmtool.hxx> +#include <dflyobj.hxx> +#include <dcontact.hxx> +#include <viewopt.hxx> +#include <flyfrm.hxx> +#include <sortedobjs.hxx> +#include <ndindex.hxx> +#include <node.hxx> +#include <ndtxt.hxx> +#include <frameformats.hxx> + +#include <limits> +#include <set> + +using namespace ::com::sun::star; + +SwLayoutCache::SwLayoutCache() : nLockCount( 0 ) {} + +/* + * Reading and writing of the layout cache. + * The layout cache is not necessary, but it improves + * the performance and reduces the text flow during + * the formatting. + * The layout cache contains the index of the paragraphs/tables + * at the top of every page, so it's possible to create + * the right count of pages and to distribute the document content + * to this pages before the formatting starts. + */ + +void SwLayoutCache::Read( SvStream &rStream ) +{ + if( !pImpl ) + { + pImpl.reset( new SwLayCacheImpl ); + if( !pImpl->Read( rStream ) ) + { + pImpl.reset(); + } + } +} + +void SwLayCacheImpl::Insert( sal_uInt16 nType, sal_uLong nIndex, sal_Int32 nOffset ) +{ + aType.push_back( nType ); + mIndices.push_back( nIndex ); + aOffset.push_back( nOffset ); +} + +bool SwLayCacheImpl::Read( SvStream& rStream ) +{ + SwLayCacheIoImpl aIo( rStream, false ); + if( aIo.GetMajorVersion() > SW_LAYCACHE_IO_VERSION_MAJOR ) + return false; + + // Due to an evil bug in the layout cache (#102759#), we cannot trust the + // sizes of fly frames which have been written using the "old" layout cache. + // This flag should indicate that we do not want to trust the width and + // height of fly frames + bUseFlyCache = aIo.GetMinorVersion() >= 1; + + aIo.OpenRec( SW_LAYCACHE_IO_REC_PAGES ); + aIo.OpenFlagRec(); + aIo.CloseFlagRec(); + while( aIo.BytesLeft() && !aIo.HasError() ) + { + sal_uInt32 nIndex(0), nOffset(0); + + switch( aIo.Peek() ) + { + case SW_LAYCACHE_IO_REC_PARA: + { + aIo.OpenRec( SW_LAYCACHE_IO_REC_PARA ); + sal_uInt8 cFlags = aIo.OpenFlagRec(); + aIo.GetStream().ReadUInt32( nIndex ); + if( (cFlags & 0x01) != 0 ) + aIo.GetStream().ReadUInt32( nOffset ); + else + nOffset = COMPLETE_STRING; + aIo.CloseFlagRec(); + Insert( SW_LAYCACHE_IO_REC_PARA, nIndex, static_cast<sal_Int32>(nOffset) ); + aIo.CloseRec(); + break; + } + case SW_LAYCACHE_IO_REC_TABLE: + aIo.OpenRec( SW_LAYCACHE_IO_REC_TABLE ); + aIo.OpenFlagRec(); + aIo.GetStream().ReadUInt32( nIndex ) + .ReadUInt32( nOffset ); + Insert( SW_LAYCACHE_IO_REC_TABLE, nIndex, static_cast<sal_Int32>(nOffset) ); + aIo.CloseFlagRec(); + aIo.CloseRec(); + break; + case SW_LAYCACHE_IO_REC_FLY: + { + aIo.OpenRec( SW_LAYCACHE_IO_REC_FLY ); + aIo.OpenFlagRec(); + aIo.CloseFlagRec(); + sal_Int32 nX(0), nY(0), nW(0), nH(0); + sal_uInt16 nPgNum(0); + aIo.GetStream().ReadUInt16( nPgNum ).ReadUInt32( nIndex ) + .ReadInt32( nX ).ReadInt32( nY ).ReadInt32( nW ).ReadInt32( nH ); + m_FlyCache.emplace_back( nPgNum, nIndex, nX, nY, nW, nH ); + aIo.CloseRec(); + break; + } + default: + aIo.SkipRec(); + break; + } + } + aIo.CloseRec(); + + return !aIo.HasError(); +} + +/** writes the index (more precise: the difference between + * the index and the first index of the document content) + * of the first paragraph/table at the top of every page. + * If at the top of a page is the rest of a paragraph/table + * from the bottom of the previous page, the character/row + * number is stored, too. + * The position, size and page number of the text frames + * are stored, too + */ +void SwLayoutCache::Write( SvStream &rStream, const SwDoc& rDoc ) +{ + if( rDoc.getIDocumentLayoutAccess().GetCurrentLayout() ) // the layout itself .. + { + SwLayCacheIoImpl aIo( rStream, true ); + // We want to save the relative index, so we need the index + // of the first content + sal_uLong nStartOfContent = rDoc.GetNodes().GetEndOfContent(). + StartOfSectionNode()->GetIndex(); + // The first page... + SwPageFrame* pPage = const_cast<SwPageFrame*>(static_cast<const SwPageFrame*>(rDoc.getIDocumentLayoutAccess().GetCurrentLayout()->Lower())); + + aIo.OpenRec( SW_LAYCACHE_IO_REC_PAGES ); + aIo.OpenFlagRec( 0, 0 ); + aIo.CloseFlagRec(); + while( pPage ) + { + if( pPage->GetPrev() ) + { + SwLayoutFrame* pLay = pPage->FindBodyCont(); + SwFrame* pTmp = pLay ? pLay->ContainsAny() : nullptr; + // We are only interested in paragraph or table frames, + // a section frames contains paragraphs/tables. + if( pTmp && pTmp->IsSctFrame() ) + pTmp = static_cast<SwSectionFrame*>(pTmp)->ContainsAny(); + + if( pTmp ) // any content + { + if( pTmp->IsTextFrame() ) + { + SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(pTmp)); + assert(!pFrame->GetMergedPara()); + sal_uLong nNdIdx = pFrame->GetTextNodeFirst()->GetIndex(); + if( nNdIdx > nStartOfContent ) + { + /* Open Paragraph Record */ + aIo.OpenRec( SW_LAYCACHE_IO_REC_PARA ); + bool bFollow = static_cast<SwTextFrame*>(pTmp)->IsFollow(); + aIo.OpenFlagRec( bFollow ? 0x01 : 0x00, + bFollow ? 8 : 4 ); + nNdIdx -= nStartOfContent; + aIo.GetStream().WriteUInt32( nNdIdx ); + if( bFollow ) + aIo.GetStream().WriteUInt32( sal_Int32(static_cast<SwTextFrame*>(pTmp)->GetOffset()) ); + aIo.CloseFlagRec(); + /* Close Paragraph Record */ + aIo.CloseRec(); + } + } + else if( pTmp->IsTabFrame() ) + { + SwTabFrame* pTab = static_cast<SwTabFrame*>(pTmp); + sal_uLong nOfst = COMPLETE_STRING; + if( pTab->IsFollow() ) + { + // If the table is a follow, we have to look for the + // master and to count all rows to get the row number + nOfst = 0; + if( pTab->IsFollow() ) + pTab = pTab->FindMaster( true ); + while( pTab != pTmp ) + { + SwFrame* pSub = pTab->Lower(); + while( pSub ) + { + ++nOfst; + pSub = pSub->GetNext(); + } + pTab = pTab->GetFollow(); + assert(pTab && "Table follow without master"); + } + } + while (true) + { + sal_uLong nNdIdx = + pTab->GetTable()->GetTableNode()->GetIndex(); + if( nNdIdx > nStartOfContent ) + { + /* Open Table Record */ + aIo.OpenRec( SW_LAYCACHE_IO_REC_TABLE ); + aIo.OpenFlagRec( 0, 8 ); + nNdIdx -= nStartOfContent; + aIo.GetStream().WriteUInt32( nNdIdx ) + .WriteUInt32( nOfst ); + aIo.CloseFlagRec(); + /* Close Table Record */ + aIo.CloseRec(); + } + // If the table has a follow on the next page, + // we know already the row number and store this + // immediately. + if( pTab->GetFollow() ) + { + if( nOfst == sal_uLong(COMPLETE_STRING) ) + nOfst = 0; + do + { + SwFrame* pSub = pTab->Lower(); + while( pSub ) + { + ++nOfst; + pSub = pSub->GetNext(); + } + pTab = pTab->GetFollow(); + SwPageFrame *pTabPage = pTab->FindPageFrame(); + if( pTabPage != pPage ) + { + OSL_ENSURE( pPage->GetPhyPageNum() < + pTabPage->GetPhyPageNum(), + "Looping Tableframes" ); + pPage = pTabPage; + break; + } + } while ( pTab->GetFollow() ); + } + else + break; + } + } + } + } + if( pPage->GetSortedObjs() ) + { + SwSortedObjs &rObjs = *pPage->GetSortedObjs(); + for (SwAnchoredObject* pAnchoredObj : rObjs) + { + if (SwFlyFrame *pFly = dynamic_cast<SwFlyFrame*>(pAnchoredObj)) + { + if( pFly->getFrameArea().Left() != FAR_AWAY && + !pFly->GetAnchorFrame()->FindFooterOrHeader() ) + { + const SwContact *pC = + ::GetUserCall(pAnchoredObj->GetDrawObj()); + if( pC ) + { + sal_uInt32 nOrdNum = pAnchoredObj->GetDrawObj()->GetOrdNum(); + sal_uInt16 nPageNum = pPage->GetPhyPageNum(); + /* Open Fly Record */ + aIo.OpenRec( SW_LAYCACHE_IO_REC_FLY ); + aIo.OpenFlagRec( 0, 0 ); + aIo.CloseFlagRec(); + const SwRect& rRct = pFly->getFrameArea(); + sal_Int32 nX = rRct.Left() - pPage->getFrameArea().Left(); + sal_Int32 nY = rRct.Top() - pPage->getFrameArea().Top(); + aIo.GetStream().WriteUInt16( nPageNum ).WriteUInt32( nOrdNum ) + .WriteInt32( nX ).WriteInt32( nY ) + .WriteInt32( rRct.Width() ) + .WriteInt32( rRct.Height() ); + /* Close Fly Record */ + aIo.CloseRec(); + } + } + } + } + } + pPage = static_cast<SwPageFrame*>(pPage->GetNext()); + } + aIo.CloseRec(); + } +} + +#ifdef DBG_UTIL +bool SwLayoutCache::CompareLayout( const SwDoc& rDoc ) const +{ + if( !pImpl ) + return true; + const SwRootFrame *pRootFrame = rDoc.getIDocumentLayoutAccess().GetCurrentLayout(); + if( pRootFrame ) + { + size_t nIndex = 0; + sal_uLong nStartOfContent = rDoc.GetNodes().GetEndOfContent(). + StartOfSectionNode()->GetIndex(); + const SwPageFrame* pPage = static_cast<const SwPageFrame*>(pRootFrame->Lower()); + if( pPage ) + pPage = static_cast<const SwPageFrame*>(pPage->GetNext()); + while( pPage ) + { + if( nIndex >= pImpl->size() ) + return false; + + const SwLayoutFrame* pLay = pPage->FindBodyCont(); + const SwFrame* pTmp = pLay ? pLay->ContainsAny() : nullptr; + if( pTmp && pTmp->IsSctFrame() ) + pTmp = static_cast<const SwSectionFrame*>(pTmp)->ContainsAny(); + if( pTmp ) + { + if( pTmp->IsTextFrame() ) + { + + SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(pTmp)); + assert(!pFrame->GetMergedPara()); + sal_uLong nNdIdx = pFrame->GetTextNodeFirst()->GetIndex(); + if( nNdIdx > nStartOfContent ) + { + bool bFollow = static_cast<const SwTextFrame*>(pTmp)->IsFollow(); + nNdIdx -= nStartOfContent; + if( pImpl->GetBreakIndex( nIndex ) != nNdIdx || + SW_LAYCACHE_IO_REC_PARA != + pImpl->GetBreakType( nIndex ) || + (bFollow + ? sal_Int32(static_cast<const SwTextFrame*>(pTmp)->GetOffset()) + : COMPLETE_STRING) != pImpl->GetBreakOfst(nIndex)) + { + return false; + } + ++nIndex; + } + } + else if( pTmp->IsTabFrame() ) + { + const SwTabFrame* pTab = static_cast<const SwTabFrame*>(pTmp); + sal_Int32 nOfst = COMPLETE_STRING; + if( pTab->IsFollow() ) + { + nOfst = 0; + if( pTab->IsFollow() ) + pTab = pTab->FindMaster( true ); + while( pTab != pTmp ) + { + const SwFrame* pSub = pTab->Lower(); + while( pSub ) + { + ++nOfst; + pSub = pSub->GetNext(); + } + pTab = pTab->GetFollow(); + } + } + do + { + sal_uLong nNdIdx = + pTab->GetTable()->GetTableNode()->GetIndex(); + if( nNdIdx > nStartOfContent ) + { + nNdIdx -= nStartOfContent; + if( pImpl->GetBreakIndex( nIndex ) != nNdIdx || + SW_LAYCACHE_IO_REC_TABLE != + pImpl->GetBreakType( nIndex ) || + nOfst != pImpl->GetBreakOfst( nIndex ) ) + { + return false; + } + ++nIndex; + } + if( pTab->GetFollow() ) + { + if( nOfst == COMPLETE_STRING ) + nOfst = 0; + do + { + const SwFrame* pSub = pTab->Lower(); + while( pSub ) + { + ++nOfst; + pSub = pSub->GetNext(); + } + pTab = pTab->GetFollow(); + const SwPageFrame *pTabPage = pTab->FindPageFrame(); + if( pTabPage != pPage ) + { + pPage = pTabPage; + break; + } + } while ( pTab->GetFollow() ); + } + else + break; + } while( pTab ); + } + } + pPage = static_cast<const SwPageFrame*>(pPage->GetNext()); + } + } + return true; +} +#endif + +void SwLayoutCache::ClearImpl() +{ + if( !IsLocked() ) + { + pImpl.reset(); + } +} + +SwLayoutCache::~SwLayoutCache() +{ + OSL_ENSURE( !nLockCount, "Deleting a locked SwLayoutCache!?" ); +} + +/// helper class to create not nested section frames for nested sections. +SwActualSection::SwActualSection( SwActualSection *pUp, + SwSectionFrame *pSect, + SwSectionNode *pNd ) : + pUpper( pUp ), + pSectFrame( pSect ), + pSectNode( pNd ) +{ + if ( !pSectNode ) + { + const SwNodeIndex *pIndex = pSect->GetFormat()->GetContent().GetContentIdx(); + pSectNode = pIndex->GetNode().FindSectionNode(); + } +} + +namespace { + +bool sanityCheckLayoutCache(SwLayCacheImpl const& rCache, + SwNodes const& rNodes, sal_uLong nNodeIndex) +{ + auto const nStartOfContent(rNodes.GetEndOfContent().StartOfSectionNode()->GetIndex()); + nNodeIndex -= nStartOfContent; + auto const nMaxIndex(rNodes.GetEndOfContent().GetIndex() - nStartOfContent); + for (size_t nIndex = 0; nIndex < rCache.size(); ++nIndex) + { + auto const nBreakIndex(rCache.GetBreakIndex(nIndex)); + if (nBreakIndex < nNodeIndex || nMaxIndex <= nBreakIndex) + { + SAL_WARN("sw.layout", + "invalid node index in layout-cache: " << nBreakIndex); + return false; + } + auto const nBreakType(rCache.GetBreakType(nIndex)); + switch (nBreakType) + { + case SW_LAYCACHE_IO_REC_PARA: + if (!rNodes[nBreakIndex + nStartOfContent]->IsTextNode()) + { + SAL_WARN("sw.layout", + "invalid node of type 'P' in layout-cache"); + return false; + } + break; + case SW_LAYCACHE_IO_REC_TABLE: + if (!rNodes[nBreakIndex + nStartOfContent]->IsTableNode()) + { + SAL_WARN("sw.layout", + "invalid node of type 'T' in layout-cache"); + return false; + } + break; + default: + assert(false); // Read shouldn't have inserted that + } + } + return true; +} + +} // namespace + +/** helper class, which utilizes the layout cache information + * to distribute the document content to the right pages. + * It's used by the InsertCnt_(..)-function. + * If there's no layout cache, the distribution to the pages is more + * a guess, but a guess with statistical background. + */ +SwLayHelper::SwLayHelper( SwDoc *pD, SwFrame* &rpF, SwFrame* &rpP, SwPageFrame* &rpPg, + SwLayoutFrame* &rpL, std::unique_ptr<SwActualSection> &rpA, + sal_uLong nNodeIndex, bool bCache ) + : mrpFrame( rpF ) + , mrpPrv( rpP ) + , mrpPage( rpPg ) + , mrpLay( rpL ) + , mrpActualSection( rpA ) + , mbBreakAfter(false) + , mpDoc(pD) + , mnMaxParaPerPage( 25 ) + , mnParagraphCnt( bCache ? 0 : USHRT_MAX ) + , mnFlyIdx( 0 ) + , mbFirst( bCache ) +{ + mpImpl = mpDoc->GetLayoutCache() ? mpDoc->GetLayoutCache()->LockImpl() : nullptr; + if( mpImpl ) + { + SwNodes const& rNodes(mpDoc->GetNodes()); + if (sanityCheckLayoutCache(*mpImpl, rNodes, nNodeIndex)) + { + mnIndex = 0; + mnStartOfContent = rNodes.GetEndOfContent().StartOfSectionNode()->GetIndex(); + mnMaxParaPerPage = 1000; + } + else + { + mpDoc->GetLayoutCache()->UnlockImpl(); + mpImpl = nullptr; + mnIndex = std::numeric_limits<size_t>::max(); + mnStartOfContent = USHRT_MAX; + } + } + else + { + mnIndex = std::numeric_limits<size_t>::max(); + mnStartOfContent = ULONG_MAX; + } +} + +SwLayHelper::~SwLayHelper() +{ + if( mpImpl ) + { + OSL_ENSURE( mpDoc && mpDoc->GetLayoutCache(), "Missing layoutcache" ); + mpDoc->GetLayoutCache()->UnlockImpl(); + } +} + +/** Does NOT really calculate the page count, + * it returns the page count value from the layout cache, if available, + * otherwise it estimates the page count. + */ +sal_uLong SwLayHelper::CalcPageCount() +{ + sal_uLong nPgCount; + SwLayCacheImpl *pCache = mpDoc->GetLayoutCache() ? + mpDoc->GetLayoutCache()->LockImpl() : nullptr; + if( pCache ) + { + nPgCount = pCache->size() + 1; + mpDoc->GetLayoutCache()->UnlockImpl(); + } + else + { + nPgCount = mpDoc->getIDocumentStatistics().GetDocStat().nPage; + if ( nPgCount <= 10 ) // no page insertion for less than 10 pages + nPgCount = 0; + sal_uLong nNdCount = mpDoc->getIDocumentStatistics().GetDocStat().nPara; + if ( nNdCount <= 1 ) + { + //Estimates the number of paragraphs. + sal_uLong nTmp = mpDoc->GetNodes().GetEndOfContent().GetIndex() - + mpDoc->GetNodes().GetEndOfExtras().GetIndex(); + //Tables have a little overhead... + nTmp -= mpDoc->GetTableFrameFormats()->size() * 25; + //Fly frames, too .. + nTmp -= (mpDoc->GetNodes().GetEndOfAutotext().GetIndex() - + mpDoc->GetNodes().GetEndOfInserts().GetIndex()) / 3 * 5; + if ( nTmp > 0 ) + nNdCount = nTmp; + } + if ( nNdCount > 100 ) // no estimation below this value + { + if ( nPgCount > 0 ) + { // tdf#129529 avoid 0... + mnMaxParaPerPage = std::max<sal_uLong>(3, nNdCount / nPgCount); + } + else + { + mnMaxParaPerPage = std::max( sal_uLong(20), + sal_uLong(20 + nNdCount / 1000 * 3) ); + const sal_uLong nMax = 53; + mnMaxParaPerPage = std::min( mnMaxParaPerPage, nMax ); + nPgCount = nNdCount / mnMaxParaPerPage; + } + if ( nNdCount < 1000 ) + nPgCount = 0;// no progress bar for small documents + SwViewShell *pSh = nullptr; + if( mrpLay && mrpLay->getRootFrame() ) + pSh = mrpLay->getRootFrame()->GetCurrShell(); + if( pSh && pSh->GetViewOptions()->getBrowseMode() ) + mnMaxParaPerPage *= 6; + } + } + return nPgCount; +} + +/** + * inserts a page and return true, if + * - the break after flag is set + * - the actual content wants a break before + * - the maximum count of paragraph/rows is reached + * + * The break after flag is set, if the actual content + * wants a break after. + */ +bool SwLayHelper::CheckInsertPage() +{ + bool bEnd = nullptr == mrpPage->GetNext(); + const SvxFormatBreakItem& rBrk = mrpFrame->GetBreakItem(); + const SwFormatPageDesc& rDesc = mrpFrame->GetPageDescItem(); + // #118195# Do not evaluate page description if frame + // is a follow frame! + const SwPageDesc* pDesc = mrpFrame->IsFlowFrame() && + SwFlowFrame::CastFlowFrame( mrpFrame )->IsFollow() ? + nullptr : + rDesc.GetPageDesc(); + + bool bBrk = mnParagraphCnt > mnMaxParaPerPage || mbBreakAfter; + mbBreakAfter = rBrk.GetBreak() == SvxBreak::PageAfter || + rBrk.GetBreak() == SvxBreak::PageBoth; + if ( !bBrk ) + bBrk = rBrk.GetBreak() == SvxBreak::PageBefore || + rBrk.GetBreak() == SvxBreak::PageBoth; + + if ( bBrk || pDesc ) + { + ::std::optional<sal_uInt16> oPgNum; + if ( !pDesc ) + { + pDesc = mrpPage->GetPageDesc()->GetFollow(); + } + else + { + oPgNum = rDesc.GetNumOffset(); + if ( oPgNum ) + static_cast<SwRootFrame*>(mrpPage->GetUpper())->SetVirtPageNum(true); + } + bool bNextPageRight = !mrpPage->OnRightPage(); + bool bInsertEmpty = false; + assert(mrpPage->GetUpper()->GetLower()); + if (oPgNum && bNextPageRight != IsRightPageByNumber( + *static_cast<SwRootFrame*>(mrpPage->GetUpper()), *oPgNum)) + { + bNextPageRight = !bNextPageRight; + bInsertEmpty = true; + } + // If the page style is changing, we'll have a first page. + bool bNextPageFirst = pDesc != mrpPage->GetPageDesc(); + ::InsertNewPage( const_cast<SwPageDesc&>(*pDesc), mrpPage->GetUpper(), + bNextPageRight, bNextPageFirst, bInsertEmpty, false, mrpPage->GetNext()); + if ( bEnd ) + { + OSL_ENSURE( mrpPage->GetNext(), "No new page?" ); + do + { mrpPage = static_cast<SwPageFrame*>(mrpPage->GetNext()); + } while ( mrpPage->GetNext() ); + } + else + { + OSL_ENSURE( mrpPage->GetNext(), "No new page?" ); + mrpPage = static_cast<SwPageFrame*>(mrpPage->GetNext()); + if ( mrpPage->IsEmptyPage() ) + { + OSL_ENSURE( mrpPage->GetNext(), "No new page?" ); + mrpPage = static_cast<SwPageFrame*>(mrpPage->GetNext()); + } + } + mrpLay = mrpPage->FindBodyCont(); + while( mrpLay->Lower() ) + mrpLay = static_cast<SwLayoutFrame*>(mrpLay->Lower()); + return true; + } + return false; +} + +/** entry point for the InsertCnt_-function. + * The document content index is checked either it is + * in the layout cache either it's time to insert a page + * cause the maximal estimation of content per page is reached. + * A really big table or long paragraph may contains more than + * one page, in this case the needed count of pages will inserted. + */ +bool SwLayHelper::CheckInsert( sal_uLong nNodeIndex ) +{ + bool bRet = false; + bool bLongTab = false; + sal_uLong nMaxRowPerPage( 0 ); + nNodeIndex -= mnStartOfContent; + sal_uInt16 nRows( 0 ); + if( mrpFrame->IsTabFrame() ) + { + //Inside a table counts every row as a paragraph + SwFrame *pLow = static_cast<SwTabFrame*>(mrpFrame)->Lower(); + nRows = 0; + do + { + ++nRows; + pLow = pLow->GetNext(); + } while ( pLow ); + mnParagraphCnt += nRows; + if( !mpImpl && mnParagraphCnt > mnMaxParaPerPage + 10 ) + { + // OD 09.04.2003 #108698# - improve heuristics: + // Assume that a table, which has more than three times the quantity + // of maximal paragraphs per page rows, consists of rows, which have + // the height of a normal paragraph. Thus, allow as much rows per page + // as much paragraphs are allowed. + if ( nRows > ( 3*mnMaxParaPerPage ) ) + { + nMaxRowPerPage = mnMaxParaPerPage; + } + else + { + SwFrame *pTmp = static_cast<SwTabFrame*>(mrpFrame)->Lower(); + if( pTmp->GetNext() ) + pTmp = pTmp->GetNext(); + pTmp = static_cast<SwRowFrame*>(pTmp)->Lower(); + sal_uInt16 nCnt = 0; + do + { + ++nCnt; + pTmp = pTmp->GetNext(); + } while( pTmp ); + nMaxRowPerPage = std::max( sal_uLong(2), mnMaxParaPerPage / nCnt ); + } + bLongTab = true; + } + } + else + ++mnParagraphCnt; + if( mbFirst && mpImpl && mnIndex < mpImpl->size() && + mpImpl->GetBreakIndex( mnIndex ) == nNodeIndex && + ( mpImpl->GetBreakOfst( mnIndex ) < COMPLETE_STRING || + ( ++mnIndex < mpImpl->size() && + mpImpl->GetBreakIndex( mnIndex ) == nNodeIndex ) ) ) + mbFirst = false; + // OD 09.04.2003 #108698# - always split a big tables. + if ( !mbFirst || + ( mrpFrame->IsTabFrame() && bLongTab ) + ) + { + sal_Int32 nRowCount = 0; + do + { + if( mpImpl || bLongTab ) + { + sal_Int32 nOfst = COMPLETE_STRING; + sal_uInt16 nType = SW_LAYCACHE_IO_REC_PAGES; + if( bLongTab ) + { + mbBreakAfter = true; + nOfst = static_cast<sal_Int32>(nRowCount + nMaxRowPerPage); + } + else + { + while( mnIndex < mpImpl->size() && + mpImpl->GetBreakIndex(mnIndex) < nNodeIndex) + ++mnIndex; + if( mnIndex < mpImpl->size() && + mpImpl->GetBreakIndex(mnIndex) == nNodeIndex ) + { + nType = mpImpl->GetBreakType( mnIndex ); + nOfst = mpImpl->GetBreakOfst( mnIndex++ ); + mbBreakAfter = true; + } + } + + if( nOfst < COMPLETE_STRING ) + { + bool bSplit = false; + sal_uInt16 nRepeat( 0 ); + if( !bLongTab && mrpFrame->IsTextFrame() && + SW_LAYCACHE_IO_REC_PARA == nType && + nOfst < static_cast<SwTextFrame*>(mrpFrame)->GetText().getLength()) + bSplit = true; + else if( mrpFrame->IsTabFrame() && nRowCount < nOfst && + ( bLongTab || SW_LAYCACHE_IO_REC_TABLE == nType ) ) + { + nRepeat = static_cast<SwTabFrame*>(mrpFrame)-> + GetTable()->GetRowsToRepeat(); + bSplit = nOfst < nRows && nRowCount + nRepeat < nOfst; + bLongTab = bLongTab && bSplit; + } + if( bSplit ) + { + mrpFrame->InsertBehind( mrpLay, mrpPrv ); + + { + SwFrameAreaDefinition::FrameAreaWriteAccess aFrm(*mrpFrame); + aFrm.Pos() = mrpLay->getFrameArea().Pos(); + aFrm.Pos().AdjustY(1 ); + } + + mrpPrv = mrpFrame; + if( mrpFrame->IsTabFrame() ) + { + SwTabFrame* pTab = static_cast<SwTabFrame*>(mrpFrame); + // #i33629#, #i29955# + ::RegistFlys( pTab->FindPageFrame(), pTab ); + SwFrame *pRow = pTab->Lower(); + SwTabFrame *pFoll = new SwTabFrame( *pTab ); + + SwFrame *pPrv; + if( nRepeat > 0 ) + { + bDontCreateObjects = true; //frmtool + + // Insert new headlines: + sal_uInt16 nRowIdx = 0; + SwRowFrame* pHeadline = nullptr; + while( nRowIdx < nRepeat ) + { + OSL_ENSURE( pTab->GetTable()->GetTabLines()[ nRowIdx ], "Table without rows?" ); + pHeadline = + new SwRowFrame( *pTab->GetTable()->GetTabLines()[ nRowIdx ], pTab ); + pHeadline->SetRepeatedHeadline( true ); + pHeadline->InsertBefore( pFoll, nullptr ); + pHeadline->RegistFlys(); + + ++nRowIdx; + } + + bDontCreateObjects = false; + pPrv = pHeadline; + nRows = nRows + nRepeat; + } + else + pPrv = nullptr; + while( pRow && nRowCount < nOfst ) + { + pRow = pRow->GetNext(); + ++nRowCount; + } + while ( pRow ) + { + SwFrame* pNxt = pRow->GetNext(); + pRow->RemoveFromLayout(); + pRow->InsertBehind( pFoll, pPrv ); + pPrv = pRow; + pRow = pNxt; + } + mrpFrame = pFoll; + } + else + { + SwTextFrame *const pNew = static_cast<SwTextFrame*>( + static_cast<SwTextFrame*>(mrpFrame) + ->GetTextNodeFirst()->MakeFrame(mrpFrame)); + pNew->ManipOfst( TextFrameIndex(nOfst) ); + pNew->SetFollow( static_cast<SwTextFrame*>(mrpFrame)->GetFollow() ); + static_cast<SwTextFrame*>(mrpFrame)->SetFollow( pNew ); + mrpFrame = pNew; + } + } + } + } + + SwPageFrame* pLastPage = mrpPage; + if( CheckInsertPage() ) + { + CheckFlyCache_( pLastPage ); + if( mrpPrv && mrpPrv->IsTextFrame() && !mrpPrv->isFrameAreaSizeValid() ) + { + SwFrameAreaDefinition::FrameAreaWriteAccess aFrm(*mrpPrv); + aFrm.Height( mrpPrv->GetUpper()->getFramePrintArea().Height() ); + } + + bRet = true; + mrpPrv = nullptr; + mnParagraphCnt = 0; + + if ( mrpActualSection ) + { + //Did the SectionFrame even have a content? If not, we can + //directly put it somewhere else + SwSectionFrame *pSct; + bool bInit = false; + if ( !mrpActualSection->GetSectionFrame()->ContainsContent()) + { + pSct = mrpActualSection->GetSectionFrame(); + pSct->RemoveFromLayout(); + } + else + { + pSct = new SwSectionFrame( + *mrpActualSection->GetSectionFrame(), false ); + mrpActualSection->GetSectionFrame()->SimpleFormat(); + bInit = true; + } + mrpActualSection->SetSectionFrame( pSct ); + pSct->InsertBehind( mrpLay, nullptr ); + + if( bInit ) + { + pSct->Init(); + } + + { + SwFrameAreaDefinition::FrameAreaWriteAccess aFrm(*pSct); + aFrm.Pos() = mrpLay->getFrameArea().Pos(); + aFrm.Pos().AdjustY(1 ); //because of the notifications + } + + mrpLay = pSct; + if ( mrpLay->Lower() && mrpLay->Lower()->IsLayoutFrame() ) + mrpLay = mrpLay->GetNextLayoutLeaf(); + } + } + } while( bLongTab || ( mpImpl && mnIndex < mpImpl->size() && + mpImpl->GetBreakIndex( mnIndex ) == nNodeIndex ) ); + } + mbFirst = false; + return bRet; +} + +namespace { + +struct SdrObjectCompare +{ + bool operator()( const SdrObject* pF1, const SdrObject* pF2 ) const + { + return pF1->GetOrdNum() < pF2->GetOrdNum(); + } +}; + +struct FlyCacheCompare +{ + bool operator()( const SwFlyCache* pC1, const SwFlyCache* pC2 ) const + { + return pC1->nOrdNum < pC2->nOrdNum; + } +}; + +} + +/** + * If a new page is inserted, the last page is analysed. + * If there are text frames with default position, the fly cache + * is checked, if these frames are stored in the cache. + */ +void SwLayHelper::CheckFlyCache_( SwPageFrame* pPage ) +{ + if( !mpImpl || !pPage ) + return; + const size_t nFlyCount = mpImpl->GetFlyCount(); + // Any text frames at the page, fly cache available? + if( pPage->GetSortedObjs() && mnFlyIdx < nFlyCount ) + { + SwSortedObjs &rObjs = *pPage->GetSortedObjs(); + sal_uInt16 nPgNum = pPage->GetPhyPageNum(); + + // NOTE: Here we do not use the absolute ordnums but + // relative ordnums for the objects on this page. + + // skip fly frames from pages before the current page + while( mnFlyIdx < nFlyCount && + mpImpl->GetFlyCache(mnFlyIdx).nPageNum < nPgNum ) + ++mnFlyIdx; + + // sort cached objects on this page by ordnum + std::set< const SwFlyCache*, FlyCacheCompare > aFlyCacheSet; + size_t nIdx = mnFlyIdx; + + SwFlyCache* pFlyC; + while( nIdx < nFlyCount && + ( pFlyC = &mpImpl->GetFlyCache( nIdx ) )->nPageNum == nPgNum ) + { + aFlyCacheSet.insert( pFlyC ); + ++nIdx; + } + + // sort objects on this page by ordnum + std::set< const SdrObject*, SdrObjectCompare > aFlySet; + for (SwAnchoredObject* pAnchoredObj : rObjs) + { + if (SwFlyFrame *pFly = dynamic_cast<SwFlyFrame*>(pAnchoredObj)) // a text frame? + { + if( pFly->GetAnchorFrame() && + !pFly->GetAnchorFrame()->FindFooterOrHeader() ) + { + const SwContact *pC = ::GetUserCall( pAnchoredObj->GetDrawObj() ); + if( pC ) + { + aFlySet.insert( pAnchoredObj->GetDrawObj() ); + } + } + } + } + + if ( aFlyCacheSet.size() == aFlySet.size() ) + { + std::set< const SdrObject*, SdrObjectCompare >::iterator aFlySetIt = + aFlySet.begin(); + + for ( const SwFlyCache* pFlyCache : aFlyCacheSet ) + { + SwFlyFrame* pFly = const_cast<SwVirtFlyDrawObj*>(static_cast<const SwVirtFlyDrawObj*>(*aFlySetIt))->GetFlyFrame(); + + if ( pFly->getFrameArea().Left() == FAR_AWAY ) + { + // we get the stored information + SwFrameAreaDefinition::FrameAreaWriteAccess aFrm(*pFly); + aFrm.Pos().setX( pFlyCache->Left() + pPage->getFrameArea().Left() ); + aFrm.Pos().setY( pFlyCache->Top() + pPage->getFrameArea().Top() ); + + if ( mpImpl->IsUseFlyCache() ) + { + aFrm.Width( pFlyCache->Width() ); + aFrm.Height( pFlyCache->Height() ); + } + } + + ++aFlySetIt; + } + } + } +} + +SwLayCacheIoImpl::SwLayCacheIoImpl( SvStream& rStrm, bool bWrtMd ) : + pStream( &rStrm ), + nFlagRecEnd ( 0 ), + nMajorVersion(SW_LAYCACHE_IO_VERSION_MAJOR), + nMinorVersion(SW_LAYCACHE_IO_VERSION_MINOR), + bWriteMode( bWrtMd ), + bError( false ) +{ + if( bWriteMode ) + pStream->WriteUInt16( nMajorVersion ) + .WriteUInt16( nMinorVersion ); + + else + pStream->ReadUInt16( nMajorVersion ) + .ReadUInt16( nMinorVersion ); +} + +void SwLayCacheIoImpl::OpenRec( sal_uInt8 cType ) +{ + sal_uInt32 nPos = pStream->Tell(); + if( bWriteMode ) + { + aRecords.emplace_back(cType, nPos ); + pStream->WriteUInt32( 0 ); + } + else + { + sal_uInt32 nVal(0); + pStream->ReadUInt32( nVal ); + sal_uInt8 cRecTyp = static_cast<sal_uInt8>(nVal); + if (!nVal || cRecTyp != cType || !pStream->good()) + { + OSL_ENSURE( nVal, "OpenRec: Record-Header is 0" ); + OSL_ENSURE( cRecTyp == cType, "OpenRec: Wrong Record Type" ); + aRecords.emplace_back(0, pStream->Tell() ); + bError = true; + } + else + { + sal_uInt32 nSize = nVal >> 8; + aRecords.emplace_back(cRecTyp, nPos+nSize ); + } + } +} + +// Close record +void SwLayCacheIoImpl::CloseRec() +{ + bool bRes = true; + OSL_ENSURE( !aRecords.empty(), "CloseRec: no levels" ); + if( !aRecords.empty() ) + { + sal_uInt32 nPos = pStream->Tell(); + if( bWriteMode ) + { + sal_uInt32 nBgn = aRecords.back().size; + pStream->Seek( nBgn ); + sal_uInt32 nSize = nPos - nBgn; + sal_uInt32 nVal = ( nSize << 8 ) | aRecords.back().type; + pStream->WriteUInt32( nVal ); + pStream->Seek( nPos ); + if( pStream->GetError() != ERRCODE_NONE ) + bRes = false; + } + else + { + sal_uInt32 n = aRecords.back().size; + OSL_ENSURE( n >= nPos, "CloseRec: too much data read" ); + if( n != nPos ) + { + pStream->Seek( n ); + if( n < nPos ) + bRes = false; + } + if( pStream->GetErrorCode() != ERRCODE_NONE ) + bRes = false; + } + aRecords.pop_back(); + } + + if( !bRes ) + bError = true; +} + +sal_uInt32 SwLayCacheIoImpl::BytesLeft() +{ + sal_uInt32 n = 0; + if( !bError && !aRecords.empty() ) + { + sal_uInt32 nEndPos = aRecords.back().size; + sal_uInt32 nPos = pStream->Tell(); + if( nEndPos > nPos ) + n = nEndPos - nPos; + } + return n; +} + +sal_uInt8 SwLayCacheIoImpl::Peek() +{ + sal_uInt8 c(0); + if( !bError ) + { + sal_uInt32 nPos = pStream->Tell(); + pStream->ReadUChar( c ); + pStream->Seek( nPos ); + if( pStream->GetErrorCode() != ERRCODE_NONE ) + { + c = 0; + bError = true; + } + } + return c; +} + +void SwLayCacheIoImpl::SkipRec() +{ + sal_uInt8 c = Peek(); + OpenRec( c ); + pStream->Seek( aRecords.back().size ); + CloseRec(); +} + +sal_uInt8 SwLayCacheIoImpl::OpenFlagRec() +{ + OSL_ENSURE( !bWriteMode, "OpenFlagRec illegal in write mode" ); + sal_uInt8 cFlags(0); + pStream->ReadUChar( cFlags ); + nFlagRecEnd = pStream->Tell() + ( cFlags & 0x0F ); + return (cFlags >> 4); +} + +void SwLayCacheIoImpl::OpenFlagRec( sal_uInt8 nFlags, sal_uInt8 nLen ) +{ + OSL_ENSURE( bWriteMode, "OpenFlagRec illegal in read mode" ); + OSL_ENSURE( (nFlags & 0xF0) == 0, "illegal flags set" ); + OSL_ENSURE( nLen < 16, "wrong flag record length" ); + sal_uInt8 cFlags = (nFlags << 4) + nLen; + pStream->WriteUChar( cFlags ); + nFlagRecEnd = pStream->Tell() + nLen; +} + +void SwLayCacheIoImpl::CloseFlagRec() +{ + if( bWriteMode ) + { + OSL_ENSURE( pStream->Tell() == nFlagRecEnd, "Wrong amount of data written" ); + } + else + { + OSL_ENSURE( pStream->Tell() <= nFlagRecEnd, "Too many data read" ); + if( pStream->Tell() != nFlagRecEnd ) + pStream->Seek( nFlagRecEnd ); + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |