463 lines
16 KiB
C++
463 lines
16 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 <libxml/xmlwriter.h>
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#include <editeng/ulspitem.hxx>
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#include <osl/diagnose.h>
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#include <fmtclds.hxx>
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#include <fmtfordr.hxx>
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#include <frmfmt.hxx>
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#include <frmatr.hxx>
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#include <frmtool.hxx>
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#include <colfrm.hxx>
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#include <pagefrm.hxx>
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#include <bodyfrm.hxx>
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#include <rootfrm.hxx>
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#include <sectfrm.hxx>
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#include <calbck.hxx>
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#include <ftnfrm.hxx>
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#include <IDocumentState.hxx>
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#include <IDocumentLayoutAccess.hxx>
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#include <IDocumentUndoRedo.hxx>
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SwColumnFrame::SwColumnFrame( SwFrameFormat *pFormat, SwFrame* pSib ):
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SwFootnoteBossFrame( pFormat, pSib )
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{
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mnFrameType = SwFrameType::Column;
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SwBodyFrame* pColBody = new SwBodyFrame( pFormat->GetDoc()->GetDfltFrameFormat(), pSib );
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pColBody->InsertBehind( this, nullptr ); // ColumnFrames now with BodyFrame
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SetMaxFootnoteHeight( LONG_MAX );
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}
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void SwColumnFrame::DestroyImpl()
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{
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SwFrameFormat *pFormat = GetFormat();
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SwDoc *pDoc;
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if ( !(pDoc = pFormat->GetDoc())->IsInDtor() && pFormat->HasOnlyOneListener() )
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{
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//I'm the only one, delete the format.
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//Get default format before, so the base class can cope with it.
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pDoc->GetDfltFrameFormat()->Add(*this);
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// tdf#134009, like #i32968# avoid SwUndoFrameFormatDelete creation,
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// the format is owned by the SwColumnFrame, see lcl_AddColumns()
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::sw::UndoGuard const ug(pDoc->GetIDocumentUndoRedo());
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pDoc->DelFrameFormat( pFormat );
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}
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SwFootnoteBossFrame::DestroyImpl();
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}
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SwColumnFrame::~SwColumnFrame()
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{
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}
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void SwColumnFrame::dumpAsXml(xmlTextWriterPtr writer) const
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{
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(void)xmlTextWriterStartElement(writer, reinterpret_cast<const xmlChar*>("column"));
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dumpAsXmlAttributes(writer);
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(void)xmlTextWriterStartElement(writer, BAD_CAST("infos"));
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dumpInfosAsXml(writer);
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(void)xmlTextWriterEndElement(writer);
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dumpChildrenAsXml(writer);
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(void)xmlTextWriterEndElement(writer);
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}
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static void lcl_RemoveColumns( SwLayoutFrame *pCont, sal_uInt16 nCnt )
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{
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OSL_ENSURE( pCont && pCont->Lower() && pCont->Lower()->IsColumnFrame(),
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"no columns to remove." );
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SwColumnFrame *pColumn = static_cast<SwColumnFrame*>(pCont->Lower());
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sw_RemoveFootnotes( pColumn, true, true );
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while ( pColumn->GetNext() )
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{
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OSL_ENSURE( pColumn->GetNext()->IsColumnFrame(),
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"neighbor of ColumnFrame is no ColumnFrame." );
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pColumn = static_cast<SwColumnFrame*>(pColumn->GetNext());
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}
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for ( sal_uInt16 i = 0; i < nCnt; ++i )
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{
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SwColumnFrame *pTmp = static_cast<SwColumnFrame*>(pColumn->GetPrev());
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pColumn->Cut();
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SwFrame::DestroyFrame(pColumn); //format is going to be destroyed in the DTor if needed.
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pColumn = pTmp;
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}
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}
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static SwLayoutFrame * lcl_FindColumns( SwLayoutFrame *pLay, sal_uInt16 nCount )
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{
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SwFrame *pCol = pLay->Lower();
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if ( pLay->IsPageFrame() )
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pCol = static_cast<SwPageFrame*>(pLay)->FindBodyCont()->Lower();
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if ( pCol && pCol->IsColumnFrame() )
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{
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SwFrame *pTmp = pCol;
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sal_uInt16 i;
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for ( i = 0; pTmp; pTmp = pTmp->GetNext(), ++i )
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/* do nothing */;
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return i == nCount ? static_cast<SwLayoutFrame*>(pCol) : nullptr;
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}
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return nullptr;
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}
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static bool lcl_AddColumns( SwLayoutFrame *pCont, sal_uInt16 nCount )
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{
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SwDoc *pDoc = pCont->GetFormat()->GetDoc();
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const bool bMod = pDoc->getIDocumentState().IsModified();
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//Formats should be shared whenever possible. If a neighbour already has
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//the same column settings we can add them to the same format.
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//The neighbour can be searched using the format, however the owner of the
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//attribute depends on the frame type.
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SwLayoutFrame *pAttrOwner = pCont;
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if ( pCont->IsBodyFrame() )
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pAttrOwner = pCont->FindPageFrame();
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SwLayoutFrame *pNeighbourCol = nullptr;
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SwIterator<SwLayoutFrame,SwFormat> aIter( *pAttrOwner->GetFormat() );
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SwLayoutFrame *pNeighbour = aIter.First();
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sal_uInt16 nAdd = 0;
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SwFrame *pCol = pCont->Lower();
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if ( pCol && pCol->IsColumnFrame() )
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for ( nAdd = 1; pCol; pCol = pCol->GetNext(), ++nAdd )
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/* do nothing */;
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while ( pNeighbour )
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{
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if ( nullptr != (pNeighbourCol = lcl_FindColumns( pNeighbour, nCount+nAdd )) &&
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pNeighbourCol != pCont )
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break;
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pNeighbourCol = nullptr;
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pNeighbour = aIter.Next();
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}
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bool bRet;
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SwTwips nMax = pCont->IsPageBodyFrame() ?
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pCont->FindPageFrame()->GetMaxFootnoteHeight() : LONG_MAX;
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if ( pNeighbourCol )
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{
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bRet = false;
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SwFrame *pTmp = pCont->Lower();
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while ( pTmp )
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{
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pTmp = pTmp->GetNext();
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pNeighbourCol = static_cast<SwLayoutFrame*>(pNeighbourCol->GetNext());
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}
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for ( sal_uInt16 i = 0; i < nCount; ++i )
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{
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SwColumnFrame *pTmpCol = new SwColumnFrame( pNeighbourCol->GetFormat(), pCont );
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pTmpCol->SetMaxFootnoteHeight( nMax );
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pTmpCol->InsertBefore( pCont, nullptr );
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pNeighbourCol = static_cast<SwLayoutFrame*>(pNeighbourCol->GetNext());
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}
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}
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else
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{
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bRet = true;
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// tdf#103359, like #i32968# Inserting columns in the section causes MakeFrameFormat to put
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// nCount objects of type SwUndoFrameFormat on the undo stack. We don't want them.
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::sw::UndoGuard const undoGuard(pDoc->GetIDocumentUndoRedo());
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for ( sal_uInt16 i = 0; i < nCount; ++i )
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{
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SwFrameFormat *pFormat = pDoc->MakeFrameFormat(OUString(), pDoc->GetDfltFrameFormat());
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SwColumnFrame *pTmp = new SwColumnFrame( pFormat, pCont );
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pTmp->SetMaxFootnoteHeight( nMax );
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pTmp->Paste( pCont );
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}
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}
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if ( !bMod )
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pDoc->getIDocumentState().ResetModified();
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return bRet;
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}
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/** add or remove columns from a layoutframe.
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*
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* Normally, a layoutframe with a column attribute of 1 or 0 columns contains
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* no columnframe. However, a sectionframe with "footnotes at the end" needs
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* a columnframe.
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*
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* @param rOld
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* @param rNew
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* @param bChgFootnote if true, the columnframe will be inserted or removed, if necessary.
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*/
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void SwLayoutFrame::ChgColumns( const SwFormatCol &rOld, const SwFormatCol &rNew,
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const bool bChgFootnote )
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{
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if ( rOld.GetNumCols() <= 1 && rNew.GetNumCols() <= 1 && !bChgFootnote )
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return;
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// #i97379#
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// If current lower is a no text frame, then columns are not allowed
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if ( Lower() && Lower()->IsNoTextFrame() &&
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rNew.GetNumCols() > 1 )
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{
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return;
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}
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sal_uInt16 nNewNum, nOldNum = 1;
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if( Lower() && Lower()->IsColumnFrame() )
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{
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SwFrame* pCol = Lower();
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while( nullptr != (pCol=pCol->GetNext()) )
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++nOldNum;
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}
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nNewNum = rNew.GetNumCols();
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if( !nNewNum )
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++nNewNum;
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bool bAtEnd;
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if( IsSctFrame() )
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bAtEnd = static_cast<SwSectionFrame*>(this)->IsAnyNoteAtEnd();
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else
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bAtEnd = false;
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//Setting the column width is only needed for new formats.
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bool bAdjustAttributes = nOldNum != rOld.GetNumCols();
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//The content is saved and restored if the column count is different.
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SwFrame *pSave = nullptr;
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if( nOldNum != nNewNum || bChgFootnote )
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{
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SwDoc *pDoc = GetFormat()->GetDoc();
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OSL_ENSURE( pDoc, "FrameFormat doesn't return a document." );
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// SaveContent would also suck up the content of the footnote container
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// and store it within the normal text flow.
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if( IsPageBodyFrame() )
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pDoc->getIDocumentLayoutAccess().GetCurrentLayout()->RemoveFootnotes( static_cast<SwPageFrame*>(GetUpper()) );
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pSave = ::SaveContent( this );
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//If columns exist, they get deleted if a column count of 0 or 1 is requested.
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if ( nNewNum == 1 && !bAtEnd )
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{
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::lcl_RemoveColumns( this, nOldNum );
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if ( IsBodyFrame() )
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SetFrameFormat( pDoc->GetDfltFrameFormat() );
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else
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GetFormat()->SetFormatAttr( SwFormatFillOrder() );
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if ( pSave )
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::RestoreContent( pSave, this, nullptr );
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return;
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}
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if ( nOldNum == 1 )
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{
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if ( IsBodyFrame() )
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SetFrameFormat( pDoc->GetColumnContFormat() );
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else
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GetFormat()->SetFormatAttr( SwFormatFillOrder( ATT_LEFT_TO_RIGHT ) );
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if( !Lower() || !Lower()->IsColumnFrame() )
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--nOldNum;
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}
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if ( nOldNum > nNewNum )
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{
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::lcl_RemoveColumns( this, nOldNum - nNewNum );
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bAdjustAttributes = true;
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}
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else if( nOldNum < nNewNum )
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{
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sal_uInt16 nAdd = nNewNum - nOldNum;
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bAdjustAttributes = lcl_AddColumns( this, nAdd );
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}
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}
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if ( !bAdjustAttributes )
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{
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if ( rOld.GetLineWidth() != rNew.GetLineWidth() ||
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rOld.GetWishWidth() != rNew.GetWishWidth() ||
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rOld.IsOrtho() != rNew.IsOrtho() )
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bAdjustAttributes = true;
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else
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{
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const size_t nCount = std::min( rNew.GetColumns().size(), rOld.GetColumns().size() );
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for ( size_t i = 0; i < nCount; ++i )
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if ( !(rOld.GetColumns()[i] == rNew.GetColumns()[i]) )
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{
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bAdjustAttributes = true;
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break;
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}
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}
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}
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//The columns can now be easily adjusted.
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AdjustColumns( &rNew, bAdjustAttributes );
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//Don't restore the content before. An earlier restore would trigger useless
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//actions during setup.
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if ( pSave )
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{
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OSL_ENSURE( Lower() && Lower()->IsLayoutFrame() &&
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static_cast<SwLayoutFrame*>(Lower())->Lower() &&
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static_cast<SwLayoutFrame*>(Lower())->Lower()->IsLayoutFrame(),
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"no column body." ); // ColumnFrames contain BodyFrames
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::RestoreContent( pSave, static_cast<SwLayoutFrame*>(static_cast<SwLayoutFrame*>(Lower())->Lower()), nullptr );
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}
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}
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void SwLayoutFrame::AdjustColumns( const SwFormatCol *pAttr, bool bAdjustAttributes )
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{
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SwFrame* pLower = Lower();
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if (!pLower)
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return;
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if( !pLower->GetNext() )
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{
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pLower->ChgSize( getFramePrintArea().SSize() );
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return;
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}
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SwRectFnSet fnRect(this);
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//If we have a pointer or we have to configure an attribute, we set the
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//column widths in any case. Otherwise we check if a configuration is needed.
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if ( !pAttr )
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{
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pAttr = &GetFormat()->GetCol();
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if ( !bAdjustAttributes )
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{
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tools::Long nAvail = fnRect.GetWidth(getFramePrintArea());
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for ( SwLayoutFrame *pCol = static_cast<SwLayoutFrame*>(pLower);
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pCol;
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pCol = static_cast<SwLayoutFrame*>(pCol->GetNext()) )
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nAvail -= fnRect.GetWidth(pCol->getFrameArea());
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if ( !nAvail )
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return;
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}
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}
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//The columns can now be easily adjusted.
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//The widths get counted so we can give the reminder to the last one.
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SwTwips nAvail = fnRect.GetWidth(getFramePrintArea());
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const bool bLine = pAttr->GetLineAdj() != COLADJ_NONE;
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const sal_uInt16 nMin = bLine ? sal_uInt16( 20 + ( pAttr->GetLineWidth() / 2) ) : 0;
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const bool bR2L = IsRightToLeft();
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SwFrame *pCol = bR2L ? GetLastLower() : pLower;
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// #i27399#
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// bOrtho means we have to adjust the column frames manually. Otherwise
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// we may use the values returned by CalcColWidth:
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const bool bOrtho = pAttr->IsOrtho() && pAttr->GetNumCols() > 0;
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tools::Long nGutter = 0;
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for ( sal_uInt16 i = 0; i < pAttr->GetNumCols() && pCol; ++i ) //i118878, value returned by GetNumCols() can't be trusted
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{
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if( !bOrtho )
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{
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const SwTwips nWidth = i == (pAttr->GetNumCols() - 1) ?
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nAvail :
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pAttr->CalcColWidth( i, sal_uInt16( fnRect.GetWidth(getFramePrintArea()) ) );
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const Size aColSz = fnRect.IsVert() ?
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Size( getFramePrintArea().Width(), nWidth ) :
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Size( nWidth, getFramePrintArea().Height() );
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pCol->ChgSize( aColSz );
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// With this, the ColumnBodyFrames from page columns gets adjusted and
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// their bFixHeight flag is set so they won't shrink/grow.
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// Don't use the flag with frame columns because BodyFrames in frame
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// columns can grow/shrink.
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if( IsBodyFrame() )
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static_cast<SwLayoutFrame*>(pCol)->Lower()->ChgSize( aColSz );
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nAvail -= nWidth;
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}
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if ( bOrtho || bAdjustAttributes )
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{
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const SwColumn *pC = &pAttr->GetColumns()[i];
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const SwAttrSet* pSet = pCol->GetAttrSet();
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SvxLRSpaceItem aLR( pSet->GetLRSpace() );
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//In order to have enough space for the separation lines, we have to
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//take them into account here. Every time two columns meet we
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//calculate a clearance of 20 + half the pen width on the left or
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//right side, respectively.
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const sal_uInt16 nLeft = pC->GetLeft();
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const sal_uInt16 nRight = pC->GetRight();
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aLR.SetLeft(SvxIndentValue::twips(nLeft));
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aLR.SetRight(SvxIndentValue::twips(nRight));
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if ( bLine )
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{
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if ( i == 0 )
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{
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aLR.SetRight(SvxIndentValue::twips(std::max(nRight, nMin)));
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}
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else if ( i == pAttr->GetNumCols() - 1 )
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{
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aLR.SetLeft(SvxIndentValue::twips(std::max(nLeft, nMin)));
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}
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else
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{
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aLR.SetLeft(SvxIndentValue::twips(std::max(nLeft, nMin)));
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aLR.SetRight(SvxIndentValue::twips(std::max(nRight, nMin)));
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}
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}
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if ( bAdjustAttributes )
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{
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SvxULSpaceItem aUL( pSet->GetULSpace() );
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aUL.SetUpper(0);
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aUL.SetLower(0);
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static_cast<SwLayoutFrame*>(pCol)->GetFormat()->SetFormatAttr( aLR );
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static_cast<SwLayoutFrame*>(pCol)->GetFormat()->SetFormatAttr( aUL );
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}
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nGutter += aLR.ResolveLeft({}) + aLR.ResolveRight({});
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}
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pCol = bR2L ? pCol->GetPrev() : pCol->GetNext();
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}
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if( !bOrtho )
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return;
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tools::Long nInnerWidth = ( nAvail - nGutter ) / pAttr->GetNumCols();
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pCol = pLower;
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for( sal_uInt16 i = 0; i < pAttr->GetNumCols() && pCol; pCol = pCol->GetNext(), ++i ) //i118878, value returned by GetNumCols() can't be trusted
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{
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SwTwips nWidth;
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if ( i == pAttr->GetNumCols() - 1 )
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nWidth = nAvail;
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else
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{
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SvxLRSpaceItem aLR( pCol->GetAttrSet()->GetLRSpace() );
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nWidth = nInnerWidth + aLR.ResolveLeft({}) + aLR.ResolveRight({});
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}
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if( nWidth < 0 )
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nWidth = 0;
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const Size aColSz = fnRect.IsVert() ?
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Size( getFramePrintArea().Width(), nWidth ) :
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Size( nWidth, getFramePrintArea().Height() );
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pCol->ChgSize( aColSz );
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if( IsBodyFrame() )
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static_cast<SwLayoutFrame*>(pCol)->Lower()->ChgSize( aColSz );
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nAvail -= nWidth;
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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