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78425b0df6462a3c63c3b0241f0d71d464bb7b0c
libreoffice/sw/source/core/layout/flowfrm.cxx
Kohei Yoshida 1aaf9a9b36 Renamed hard-to-remember 8-char headers in editeng. 
Change-Id: If255802082890e1b1b4c5197a791fa79a011773e
2013-02-12 15:15:06 -05:00

2687 lines
96 KiB
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "pam.hxx"
#include "swtable.hxx"
#include "frame.hxx"
#include "rootfrm.hxx"
#include "pagefrm.hxx"
#include "flyfrm.hxx"
#include "viewsh.hxx"
#include "doc.hxx"
#include "viewimp.hxx"
#include "viewopt.hxx"
#include "dflyobj.hxx"
#include "frmtool.hxx"
#include "dcontact.hxx"
#include <editeng/formatbreakitem.hxx>
#include <editeng/keepitem.hxx>
#include <fmtsrnd.hxx>
#include <fmtanchr.hxx>
#include <fmtpdsc.hxx>
#include <editeng/ulspitem.hxx>
#include <tgrditem.hxx>
#include <txtftn.hxx>
#include <fmtftn.hxx>
#include <editeng/pgrditem.hxx>
#include <paratr.hxx>
#include "ftnfrm.hxx"
#include "txtfrm.hxx"
#include "tabfrm.hxx"
#include "pagedesc.hxx"
#include "layact.hxx"
#include "fmtornt.hxx"
#include "flyfrms.hxx"
#include "sectfrm.hxx"
#include "section.hxx"
#include "dbg_lay.hxx"
#include "lineinfo.hxx"
#include <fmtclbl.hxx>
#include <sortedobjs.hxx>
#include <layouter.hxx>
#include <fmtfollowtextflow.hxx>
#include <switerator.hxx>
sal_Bool SwFlowFrm::bMoveBwdJump = sal_False;
/*************************************************************************
|*
|* SwFlowFrm::SwFlowFrm()
|*
|*************************************************************************/
SwFlowFrm::SwFlowFrm( SwFrm &rFrm ) :
rThis( rFrm ),
m_pFollow( 0 ),
m_pPrecede( 0 ),
bLockJoin( false ),
bUndersized( false ),
bFlyLock( false )
{}
SwFlowFrm::~SwFlowFrm()
{
if (m_pFollow)
{
m_pFollow->m_pPrecede = 0;
}
if (m_pPrecede)
{
m_pPrecede->m_pFollow = 0;
}
}
void SwFlowFrm::SetFollow(SwFlowFrm *const pFollow)
{
if (m_pFollow)
{
assert(this == m_pFollow->m_pPrecede);
m_pFollow->m_pPrecede = 0;
}
m_pFollow = pFollow;
if (m_pFollow != NULL)
{
if (m_pFollow->m_pPrecede) // re-chaining pFollow?
{
assert(m_pFollow == m_pFollow->m_pPrecede->m_pFollow);
m_pFollow->m_pPrecede->m_pFollow = 0;
}
m_pFollow->m_pPrecede = this;
}
}
/*************************************************************************
|*
|* SwFlowFrm::IsFollowLocked()
|* return sal_True if any follow has the JoinLocked flag
|*
|*************************************************************************/
sal_Bool SwFlowFrm::HasLockedFollow() const
{
const SwFlowFrm* pFrm = GetFollow();
while( pFrm )
{
if( pFrm->IsJoinLocked() )
return sal_True;
pFrm = pFrm->GetFollow();
}
return sal_False;
}
/*************************************************************************
|*
|* SwFlowFrm::IsKeepFwdMoveAllowed()
|*
|*************************************************************************/
sal_Bool SwFlowFrm::IsKeepFwdMoveAllowed()
{
// If all the predecessors up to the first of the chain have
// the 'keep' attribute set, and the first of the chain's
// IsFwdMoveAllowed returns sal_False, then we're not allowed to move.
SwFrm *pFrm = &rThis;
if ( !pFrm->IsInFtn() )
do
{ if ( pFrm->GetAttrSet()->GetKeep().GetValue() )
pFrm = pFrm->GetIndPrev();
else
return sal_True;
} while ( pFrm );
//See IsFwdMoveAllowed()
sal_Bool bRet = sal_False;
if ( pFrm && pFrm->GetIndPrev() )
bRet = sal_True;
return bRet;
}
/*************************************************************************
|*
|* SwFlowFrm::CheckKeep()
|*
|*************************************************************************/
void SwFlowFrm::CheckKeep()
{
// Kick off the "last" predecessor with a 'keep' attribute, because
// it's possible for the whole troop to move back.
SwFrm *pPre = rThis.GetIndPrev();
if( pPre->IsSctFrm() )
{
SwFrm *pLast = ((SwSectionFrm*)pPre)->FindLastCntnt();
if( pLast && pLast->FindSctFrm() == pPre )
pPre = pLast;
else
return;
}
SwFrm* pTmp;
sal_Bool bKeep;
while ( sal_True == (bKeep = pPre->GetAttrSet()->GetKeep().GetValue()) &&
0 != ( pTmp = pPre->GetIndPrev() ) )
{
if( pTmp->IsSctFrm() )
{
SwFrm *pLast = ((SwSectionFrm*)pTmp)->FindLastCntnt();
if( pLast && pLast->FindSctFrm() == pTmp )
pTmp = pLast;
else
break;
}
pPre = pTmp;
}
if ( bKeep )
pPre->InvalidatePos();
}
/*************************************************************************
|*
|* SwFlowFrm::IsKeep()
|*
|*************************************************************************/
sal_Bool SwFlowFrm::IsKeep( const SwAttrSet& rAttrs, bool bCheckIfLastRowShouldKeep ) const
{
// 1. The keep attribute is ignored inside footnotes
// 2. For compatibility reasons, the keep attribute is
// ignored for frames inside table cells
// 3. If bBreakCheck is set to true, this function only checks
// if there are any break after attributes set at rAttrs
// or break before attributes set for the next content (or next table)
sal_Bool bKeep = bCheckIfLastRowShouldKeep ||
( !rThis.IsInFtn() &&
( !rThis.IsInTab() || rThis.IsTabFrm() ) &&
rAttrs.GetKeep().GetValue() );
OSL_ENSURE( !bCheckIfLastRowShouldKeep || rThis.IsTabFrm(),
"IsKeep with bCheckIfLastRowShouldKeep should only be used for tabfrms" );
// Ignore keep attribute if there are break situations:
if ( bKeep )
{
switch ( rAttrs.GetBreak().GetBreak() )
{
case SVX_BREAK_COLUMN_AFTER:
case SVX_BREAK_COLUMN_BOTH:
case SVX_BREAK_PAGE_AFTER:
case SVX_BREAK_PAGE_BOTH:
{
bKeep = sal_False;
}
default: break;
}
if ( bKeep )
{
SwFrm *pNxt;
if( 0 != (pNxt = rThis.FindNextCnt()) &&
(!m_pFollow || pNxt != m_pFollow->GetFrm()))
{
// #135914#
// The last row of a table only keeps with the next content
// it they are in the same section:
if ( bCheckIfLastRowShouldKeep )
{
const SwSection* pThisSection = 0;
const SwSection* pNextSection = 0;
const SwSectionFrm* pThisSectionFrm = rThis.FindSctFrm();
const SwSectionFrm* pNextSectionFrm = pNxt->FindSctFrm();
if ( pThisSectionFrm )
pThisSection = pThisSectionFrm->GetSection();
if ( pNextSectionFrm )
pNextSection = pNextSectionFrm->GetSection();
if ( pThisSection != pNextSection )
bKeep = sal_False;
}
if ( bKeep )
{
const SwAttrSet* pSet = NULL;
if ( pNxt->IsInTab() )
{
SwTabFrm* pTab = pNxt->FindTabFrm();
if ( ! rThis.IsInTab() || rThis.FindTabFrm() != pTab )
pSet = &pTab->GetFmt()->GetAttrSet();
}
if ( ! pSet )
pSet = pNxt->GetAttrSet();
OSL_ENSURE( pSet, "No AttrSet to check keep attribute" );
if ( pSet->GetPageDesc().GetPageDesc() )
bKeep = sal_False;
else switch ( pSet->GetBreak().GetBreak() )
{
case SVX_BREAK_COLUMN_BEFORE:
case SVX_BREAK_COLUMN_BOTH:
case SVX_BREAK_PAGE_BEFORE:
case SVX_BREAK_PAGE_BOTH:
bKeep = sal_False;
default: break;
}
}
}
}
}
return bKeep;
}
/*************************************************************************
|*
|* SwFlowFrm::BwdMoveNecessary()
|*
|*************************************************************************/
sal_uInt8 SwFlowFrm::BwdMoveNecessary( const SwPageFrm *pPage, const SwRect &rRect )
{
// The return value helps deciding whether we need to flow back (3),
// or whether we can use the good old WouldFit (0, 1), or if
// it's reasonable to relocate and test-format (2).
//
// Bit 1 in this case means that there are objects anchored to myself,
// bit 2 means that I have to evade other objects.
// If a SurroundObj that desires to be wrapped around overlaps with the
// Rect, it's required to flow (because we can't guess the relationships).
// However it's possible for a test formatting to happen.
// If the SurroundObj is a Fly and I'm a Lower, or the Fly is a Lower of
// mine, then it doesn't matter.
// If the SurroundObj is anchored in a character bound Fly, and I'm not
// a Lower of that character bound Fly myself, then the Fly doesn't matter.
// #32639# If the object is anchored with me, i can ignore it, because
// it's likely that it will follow me with the flow. A test formatting is
// not allowed in that case, however!
sal_uInt8 nRet = 0;
SwFlowFrm *pTmp = this;
do
{ // If there are objects hanging either on me or on a follow, we can't
// do a test formatting, because paragraph bound objects wouldn't
// be properly considered, and character bound objects shouldn't
// be test formatted at all.
if( pTmp->GetFrm()->GetDrawObjs() )
nRet = 1;
pTmp = pTmp->GetFollow();
} while ( !nRet && pTmp );
if ( pPage->GetSortedObjs() )
{
// #i28701# - new type <SwSortedObjs>
const SwSortedObjs &rObjs = *pPage->GetSortedObjs();
sal_uLong nIndex = ULONG_MAX;
for ( sal_uInt16 i = 0; nRet < 3 && i < rObjs.Count(); ++i )
{
// #i28701# - consider changed type of
// <SwSortedObjs> entries.
SwAnchoredObject* pObj = rObjs[i];
const SwFrmFmt& rFmt = pObj->GetFrmFmt();
const SwRect aRect( pObj->GetObjRect() );
if ( aRect.IsOver( rRect ) &&
rFmt.GetSurround().GetSurround() != SURROUND_THROUGHT )
{
if( rThis.IsLayoutFrm() && //Fly Lower of This?
Is_Lower_Of( &rThis, pObj->GetDrawObj() ) )
continue;
if( pObj->ISA(SwFlyFrm) )
{
const SwFlyFrm *pFly = static_cast<const SwFlyFrm*>(pObj);
if ( pFly->IsAnLower( &rThis ) )//This Lower of Fly?
continue;
}
const SwFrm* pAnchor = pObj->GetAnchorFrm();
if ( pAnchor == &rThis )
{
nRet |= 1;
continue;
}
// Don't do this if the object is anchored behind me in the text
// flow, because then I wouldn't evade it.
if ( ::IsFrmInSameKontext( pAnchor, &rThis ) )
{
if ( rFmt.GetAnchor().GetAnchorId() == FLY_AT_PARA )
{
// The index of the other one can be retrieved using the anchor attribute.
sal_uLong nTmpIndex = rFmt.GetAnchor().GetCntntAnchor()->nNode.GetIndex();
// Now we're going to check whether the current paragraph before
// the anchor of the displacing object sits in the text. If this
// is the case, we don't try to evade it.
// The index is being determined via SwFmtAnchor, because it's
// getting quite expensive otherwise.
if( ULONG_MAX == nIndex )
{
const SwNode *pNode;
if ( rThis.IsCntntFrm() )
pNode = ((SwCntntFrm&)rThis).GetNode();
else if( rThis.IsSctFrm() )
pNode = ((SwSectionFmt*)((SwSectionFrm&)rThis).
GetFmt())->GetSectionNode();
else
{
OSL_ENSURE( rThis.IsTabFrm(), "new FowFrm?" );
pNode = ((SwTabFrm&)rThis).GetTable()->
GetTabSortBoxes()[0]->GetSttNd()->FindTableNode();
}
nIndex = pNode->GetIndex();
}
if( nIndex < nTmpIndex )
continue;
}
}
else
continue;
nRet |= 2;
}
}
}
return nRet;
}
/*************************************************************************
|*
|* SwFlowFrm::CutTree(), PasteTree(), MoveSubTree()
|*
|* Description A specialized form of Cut() and Paste(), which
|* relocates a whole chain (this and the following, in particular).
|* During this process, only the minimum operations and notifications
|* are done.
|*
|*************************************************************************/
SwLayoutFrm *SwFlowFrm::CutTree( SwFrm *pStart )
{
// Cut the Start and all the neighbours; they are chained together and
// a handle to the first one is returned. Residuals are invalidated
// as appropriate.
SwLayoutFrm *pLay = pStart->GetUpper();
if ( pLay->IsInFtn() )
pLay = pLay->FindFtnFrm();
// #i58846#
// <pPrepare( PREP_QUOVADIS )> only for frames in footnotes
if( pStart->IsInFtn() )
{
SwFrm* pTmp = pStart->GetIndPrev();
if( pTmp )
pTmp->Prepare( PREP_QUOVADIS );
}
// Just cut quickly and take care that we don't cause problems with the
// left-behinds. The pointers of the chain being cut can point who-knows where.
if ( pStart == pStart->GetUpper()->Lower() )
pStart->GetUpper()->pLower = 0;
if ( pStart->GetPrev() )
{
pStart->GetPrev()->mpNext = 0;
pStart->mpPrev = 0;
}
if ( pLay->IsFtnFrm() )
{
if ( !pLay->Lower() && !pLay->IsColLocked() &&
!((SwFtnFrm*)pLay)->IsBackMoveLocked() )
{
pLay->Cut();
delete pLay;
}
else
{
bool bUnlock = !((SwFtnFrm*)pLay)->IsBackMoveLocked();
((SwFtnFrm*)pLay)->LockBackMove();
pLay->InvalidateSize();
pLay->Calc();
SwCntntFrm *pCnt = pLay->ContainsCntnt();
while ( pCnt && pLay->IsAnLower( pCnt ) )
{
// It's possible for the CntFrm to be locked, and we don't want
// to end up in an endless page migration, so we're not even
// going to call Calc!
OSL_ENSURE( pCnt->IsTxtFrm(), "The Graphic has landed." );
if ( ((SwTxtFrm*)pCnt)->IsLocked() ||
((SwTxtFrm*)pCnt)->GetFollow() == pStart )
break;
pCnt->Calc();
pCnt = pCnt->GetNextCntntFrm();
}
if( bUnlock )
((SwFtnFrm*)pLay)->UnlockBackMove();
}
pLay = 0;
}
return pLay;
}
sal_Bool SwFlowFrm::PasteTree( SwFrm *pStart, SwLayoutFrm *pParent, SwFrm *pSibling,
SwFrm *pOldParent )
{
//returns sal_True if there's a LayoutFrm in the chain.
sal_Bool bRet = sal_False;
// The chain beginning with pStart is inserted before pSibling
// under the parent. We take care to invalidate as required.
// I'm receiving a finished chain. We need to update the pointers for
// the beginning of the chain, then all the uppers and finally the end.
// On the way there, we invalidate as required.
if ( pSibling )
{
if ( 0 != (pStart->mpPrev = pSibling->GetPrev()) )
pStart->GetPrev()->mpNext = pStart;
else
pParent->pLower = pStart;
pSibling->_InvalidatePos();
pSibling->_InvalidatePrt();
}
else
{
if ( 0 == (pStart->mpPrev = pParent->Lower()) )
pParent->pLower = pStart;
else
//Modified for #i100782#,04/03/2009
//If the pParent has more than 1 child nodes, former design will
//ignore them directly without any collection work. It will make some
//dangling pointers. This lead the crash...
//The new design will find the last child of pParent in loop way, and
//add the pStart after the last child.
// pParent->Lower()->pNext = pStart;
{
SwFrm* pTemp = pParent->pLower;
while (pTemp)
{
if (pTemp->mpNext)
pTemp = pTemp->mpNext;
else
{
pStart->mpPrev = pTemp;
pTemp->mpNext = pStart;
break;
}
}
}
//End modification for #i100782#,04/03/2009
// #i27145#
if ( pParent->IsSctFrm() )
{
// We have no sibling because pParent is a section frame and
// has just been created to contain some content. The printing
// area of the frame behind pParent has to be invalidated, so
// that the correct distance between pParent and the next frame
// can be calculated.
pParent->InvalidateNextPrtArea();
}
}
SwFrm *pFloat = pStart;
SwFrm *pLst = 0;
SWRECTFN( pParent )
SwTwips nGrowVal = 0;
do
{ pFloat->mpUpper = pParent;
pFloat->_InvalidateAll();
pFloat->CheckDirChange();
// I'm a friend of the TxtFrm and thus am allowed to do many things.
// The CacheIdx idea seems to be a bit risky!
if ( pFloat->IsTxtFrm() )
{
if ( ((SwTxtFrm*)pFloat)->GetCacheIdx() != USHRT_MAX )
((SwTxtFrm*)pFloat)->Init(); // I'm his friend.
}
else
bRet = sal_True;
nGrowVal += (pFloat->Frm().*fnRect->fnGetHeight)();
if ( pFloat->GetNext() )
pFloat = pFloat->GetNext();
else
{
pLst = pFloat;
pFloat = 0;
}
} while ( pFloat );
if ( pSibling )
{
pLst->mpNext = pSibling;
pSibling->mpPrev = pLst;
if( pSibling->IsInFtn() )
{
if( pSibling->IsSctFrm() )
pSibling = ((SwSectionFrm*)pSibling)->ContainsAny();
if( pSibling )
pSibling->Prepare( PREP_ERGOSUM );
}
}
if ( nGrowVal )
{
if ( pOldParent && pOldParent->IsBodyFrm() ) // For variable page height while browsing
pOldParent->Shrink( nGrowVal );
pParent->Grow( nGrowVal );
}
if ( pParent->IsFtnFrm() )
((SwFtnFrm*)pParent)->InvalidateNxtFtnCnts( pParent->FindPageFrm() );
return bRet;
}
void SwFlowFrm::MoveSubTree( SwLayoutFrm* pParent, SwFrm* pSibling )
{
OSL_ENSURE( pParent, "No parent given." );
OSL_ENSURE( rThis.GetUpper(), "Where are we coming from?" );
// Be economical with notifications if an action is running.
ViewShell *pSh = rThis.getRootFrm()->GetCurrShell();
const SwViewImp *pImp = pSh ? pSh->Imp() : 0;
const bool bComplete = pImp && pImp->IsAction() && pImp->GetLayAction().IsComplete();
if ( !bComplete )
{
SwFrm *pPre = rThis.GetIndPrev();
if ( pPre )
{
pPre->SetRetouche();
// #115759# - follow-up of #i26250#
// invalidate printing area of previous frame, if it's in a table
if ( pPre->GetUpper()->IsInTab() )
{
pPre->_InvalidatePrt();
}
pPre->InvalidatePage();
}
else
{ rThis.GetUpper()->SetCompletePaint();
rThis.GetUpper()->InvalidatePage();
}
}
SwPageFrm *pOldPage = rThis.FindPageFrm();
SwLayoutFrm *pOldParent = CutTree( &rThis );
const sal_Bool bInvaLay = PasteTree( &rThis, pParent, pSibling, pOldParent );
// If, by cutting & pasting, an empty SectionFrm came into existence, it should
// disappear automatically.
SwSectionFrm *pSct;
// #126020# - adjust check for empty section
// #130797# - correct fix #126020#
if ( pOldParent && !pOldParent->Lower() &&
( pOldParent->IsInSct() &&
!(pSct = pOldParent->FindSctFrm())->ContainsCntnt() &&
!pSct->ContainsAny( true ) ) )
{
pSct->DelEmpty( sal_False );
}
// If we're in a column section, we'd rather not call Calc "from below"
if( !rThis.IsInSct() &&
( !rThis.IsInTab() || ( rThis.IsTabFrm() && !rThis.GetUpper()->IsInTab() ) ) )
rThis.GetUpper()->Calc();
else if( rThis.GetUpper()->IsSctFrm() )
{
SwSectionFrm* pTmpSct = (SwSectionFrm*)rThis.GetUpper();
sal_Bool bOld = pTmpSct->IsCntntLocked();
pTmpSct->SetCntntLock( sal_True );
pTmpSct->Calc();
if( !bOld )
pTmpSct->SetCntntLock( sal_False );
}
SwPageFrm *pPage = rThis.FindPageFrm();
if ( pOldPage != pPage )
{
rThis.InvalidatePage( pPage );
if ( rThis.IsLayoutFrm() )
{
SwCntntFrm *pCnt = ((SwLayoutFrm*)&rThis)->ContainsCntnt();
if ( pCnt )
pCnt->InvalidatePage( pPage );
}
else if ( pSh && pSh->GetDoc()->GetLineNumberInfo().IsRestartEachPage()
&& pPage->FindFirstBodyCntnt() == &rThis )
{
rThis._InvalidateLineNum();
}
}
if ( bInvaLay || (pSibling && pSibling->IsLayoutFrm()) )
rThis.GetUpper()->InvalidatePage( pPage );
}
/*************************************************************************
|*
|* SwFlowFrm::IsAnFollow()
|*
|*************************************************************************/
sal_Bool SwFlowFrm::IsAnFollow( const SwFlowFrm *pAssumed ) const
{
const SwFlowFrm *pFoll = this;
do
{ if ( pAssumed == pFoll )
return sal_True;
pFoll = pFoll->GetFollow();
} while ( pFoll );
return sal_False;
}
/*************************************************************************
|*
|* SwFlowFrm::FindMaster()
|*
|*************************************************************************/
SwTxtFrm* SwCntntFrm::FindMaster() const
{
OSL_ENSURE( IsFollow(), "SwCntntFrm::FindMaster(): !IsFollow" );
const SwCntntFrm* pPrec = GetPrecede();
if ( pPrec && pPrec->HasFollow() && pPrec->GetFollow() == this )
{
OSL_ENSURE( pPrec->IsTxtFrm(), "NoTxtFrm with follow found" );
return ( SwTxtFrm* )pPrec;
}
OSL_FAIL( "Follow ist lost in Space." );
return 0;
}
SwSectionFrm* SwSectionFrm::FindMaster() const
{
OSL_ENSURE( IsFollow(), "SwSectionFrm::FindMaster(): !IsFollow" );
SwIterator<SwSectionFrm,SwFmt> aIter( *pSection->GetFmt() );
SwSectionFrm* pSect = aIter.First();
while ( pSect )
{
if( pSect->GetFollow() == this )
return pSect;
pSect = aIter.Next();
}
OSL_FAIL( "Follow ist lost in Space." );
return 0;
}
SwTabFrm* SwTabFrm::FindMaster( bool bFirstMaster ) const
{
OSL_ENSURE( IsFollow(), "SwTabFrm::FindMaster(): !IsFollow" );
SwIterator<SwTabFrm,SwFmt> aIter( *GetTable()->GetFrmFmt() );
SwTabFrm* pTab = aIter.First();
while ( pTab )
{
if ( bFirstMaster )
{
//
// Optimization. This makes code like this obsolete:
// while ( pTab->IsFollow() )
// pTab = pTab->FindMaster();
//
if ( !pTab->IsFollow() )
{
SwTabFrm* pNxt = pTab;
while ( pNxt )
{
if ( pNxt->GetFollow() == this )
return pTab;
pNxt = pNxt->GetFollow();
}
}
}
else
{
if ( pTab->GetFollow() == this )
return pTab;
}
pTab = aIter.Next();
}
OSL_FAIL( "Follow ist lost in Space." );
return 0;
}
/*************************************************************************
|*
|* SwFrm::GetLeaf()
|*
|* Description Returns the next/previous Layout leaf that's NOT below
|* this (or even is this itself). Also, that leaf must be in the same
|* text flow as the pAnch origin frm (Body, Ftn)
|*
|*************************************************************************/
const SwLayoutFrm *SwFrm::GetLeaf( MakePageType eMakePage, sal_Bool bFwd,
const SwFrm *pAnch ) const
{
// No flow, no joy...
if ( !(IsInDocBody() || IsInFtn() || IsInFly()) )
return 0;
const SwFrm *pLeaf = this;
bool bFound = false;
do
{ pLeaf = ((SwFrm*)pLeaf)->GetLeaf( eMakePage, bFwd );
if ( pLeaf &&
(!IsLayoutFrm() || !((SwLayoutFrm*)this)->IsAnLower( pLeaf )))
{
if ( pAnch->IsInDocBody() == pLeaf->IsInDocBody() &&
pAnch->IsInFtn() == pLeaf->IsInFtn() )
{
bFound = true;
}
}
} while ( !bFound && pLeaf );
return (const SwLayoutFrm*)pLeaf;
}
/*************************************************************************
|*
|* SwFrm::GetLeaf()
|*
|* Description calls Get[Next|Prev]Leaf
|*
|*************************************************************************/
SwLayoutFrm *SwFrm::GetLeaf( MakePageType eMakePage, sal_Bool bFwd )
{
if ( IsInFtn() )
return bFwd ? GetNextFtnLeaf( eMakePage ) : GetPrevFtnLeaf( eMakePage );
// #i53323#
// A frame could be inside a table AND inside a section.
// Thus, it has to be determined, which is the first parent.
bool bInTab( IsInTab() );
bool bInSct( IsInSct() );
if ( bInTab && bInSct )
{
const SwFrm* pUpperFrm( GetUpper() );
while ( pUpperFrm )
{
if ( pUpperFrm->IsTabFrm() )
{
// the table is the first.
bInSct = false;
break;
}
else if ( pUpperFrm->IsSctFrm() )
{
// the section is the first.
bInTab = false;
break;
}
pUpperFrm = pUpperFrm->GetUpper();
}
}
if ( bInTab && ( !IsTabFrm() || GetUpper()->IsCellFrm() ) ) // TABLE IN TABLE
return bFwd ? GetNextCellLeaf( eMakePage ) : GetPrevCellLeaf( eMakePage );
if ( bInSct )
return bFwd ? GetNextSctLeaf( eMakePage ) : GetPrevSctLeaf( eMakePage );
return bFwd ? GetNextLeaf( eMakePage ) : GetPrevLeaf( eMakePage );
}
sal_Bool SwFrm::WrongPageDesc( SwPageFrm* pNew )
{
// Now it's getting a bit complicated:
//
// Maybe i'm bringing a Pagedesc myself; in that case,
// the pagedesc of the next page needs to correspond.
// Otherwise, I'll have to dig a bit deeper to see where
// the following Pagedesc is coming from.
// If the following page itself tells me that it's pagedesc
// is wrong, I can happily exchange it.
// If the page however thinks that it's pagedesc is correct,
// this doesn't mean it's useful to me:
// If the first BodyCntnt asks for a PageDesc or a PageBreak,
// I'll have to insert a new page - except the desired page is
// the correct one.
// If I inserted a new page, the problems only get started:
// because then it's likely for the next page to have been
// wrong and having been swapped because of that.
// This in turn means that I have a new (and correct) page,
// but the conditions to swap still apply.
// Way out of the situation: Try to preliminarily insert a
// new page once (empty pages are already inserted by InsertPage()
// if required)
const SwFmtPageDesc &rFmtDesc = GetAttrSet()->GetPageDesc();
//My Pagedesc doesn't count if I'm a follow!
SwPageDesc *pDesc = 0;
sal_uInt16 nTmp = 0;
SwFlowFrm *pFlow = SwFlowFrm::CastFlowFrm( this );
if ( !pFlow || !pFlow->IsFollow() )
{
pDesc = (SwPageDesc*)rFmtDesc.GetPageDesc();
if( pDesc )
{
if( !pDesc->GetRightFmt() )
nTmp = 2;
else if( !pDesc->GetLeftFmt() )
nTmp = 1;
else if( rFmtDesc.GetNumOffset() )
nTmp = rFmtDesc.GetNumOffset();
}
}
// Does the Cntnt bring a Pagedesc or do we need the
// virtual page number of the new layout leaf?
// PageDesc isn't allowed with Follows
const sal_Bool bOdd = nTmp ? ( (nTmp % 2) ? sal_True : sal_False )
: pNew->OnRightPage();
if ( !pDesc )
pDesc = pNew->FindPageDesc();
bool bFirst = pNew->OnFirstPage();
const SwFlowFrm *pNewFlow = pNew->FindFirstBodyCntnt();
// Did we find ourselves?
if( pNewFlow == pFlow )
pNewFlow = NULL;
if ( pNewFlow && pNewFlow->GetFrm()->IsInTab() )
pNewFlow = pNewFlow->GetFrm()->FindTabFrm();
const SwPageDesc *pNewDesc= ( pNewFlow && !pNewFlow->IsFollow() )
? pNewFlow->GetFrm()->GetAttrSet()->GetPageDesc().GetPageDesc() : 0;
return ( pNew->GetPageDesc() != pDesc || // own desc ?
pNew->GetFmt() != (bFirst ? pDesc->GetFirstFmt() : (bOdd ? pDesc->GetRightFmt() : pDesc->GetLeftFmt())) ||
( pNewDesc && pNewDesc == pDesc ) );
}
/*************************************************************************
|*
|* SwFrm::GetNextLeaf()
|*
|* Description Returns the next layout leaf in which we can move
|* the frame.
|*
|*************************************************************************/
SwLayoutFrm *SwFrm::GetNextLeaf( MakePageType eMakePage )
{
OSL_ENSURE( !IsInFtn(), "GetNextLeaf(), don't call me for Ftn." );
OSL_ENSURE( !IsInSct(), "GetNextLeaf(), don't call me for Sections." );
const bool bBody = IsInDocBody(); // If I'm coming from the DocBody,
// I want to end up in the body.
// It doesn't make sense to insert pages, as we only want to search the
// chain.
if( IsInFly() )
eMakePage = MAKEPAGE_NONE;
// For tables, we just take the big leap. A simple GetNext would
// iterate through the first cells and, in turn, all other cells.
SwLayoutFrm *pLayLeaf = 0;
if ( IsTabFrm() )
{
SwCntntFrm* pTmp = ((SwTabFrm*)this)->FindLastCntnt();
if ( pTmp )
pLayLeaf = pTmp->GetUpper();
}
if ( !pLayLeaf )
pLayLeaf = GetNextLayoutLeaf();
SwLayoutFrm *pOldLayLeaf = 0; // Make sure that we don't have to
// start searching from top when we
// have a freshly created page.
bool bNewPg = false; // Only insert a new page once.
while ( true )
{
if ( pLayLeaf )
{
// There's yet another LayoutFrm. Let's see if it's ready to host
// me as well.
// It only needs to be of the same kind like my starting point
// (DocBody or Footnote respectively)
if ( pLayLeaf->FindPageFrm()->IsFtnPage() )
{ // If I ended up at the end note pages, we're done.
pLayLeaf = 0;
continue;
}
if ( (bBody && !pLayLeaf->IsInDocBody()) || pLayLeaf->IsInTab()
|| pLayLeaf->IsInSct() )
{
// They don't want me! Try again
pOldLayLeaf = pLayLeaf;
pLayLeaf = pLayLeaf->GetNextLayoutLeaf();
continue;
}
// I'm wanted, therefore I'm done. However, it may still be that,
// during a page break, the page type isn't the desired one. In that
// case we have to insert a page of the correct type.
if( !IsFlowFrm() && ( eMakePage == MAKEPAGE_NONE ||
eMakePage==MAKEPAGE_APPEND || eMakePage==MAKEPAGE_NOSECTION ) )
return pLayLeaf;
SwPageFrm *pNew = pLayLeaf->FindPageFrm();
const ViewShell *pSh = getRootFrm()->GetCurrShell();
// #111704# The pagedesc check does not make sense for frames in fly frames
if ( pNew != FindPageFrm() && !bNewPg && !IsInFly() &&
// #i46683#
// Do not consider page descriptions in browse mode (since
// MoveBwd ignored them)
!(pSh && pSh->GetViewOptions()->getBrowseMode() ) )
{
if( WrongPageDesc( pNew ) )
{
SwFtnContFrm *pCont = pNew->FindFtnCont();
if( pCont )
{
// If the reference of the first footnote of this page
// lies before the page, we'd rather not insert a new page.
// (Bug #55620#)
SwFtnFrm *pFtn = (SwFtnFrm*)pCont->Lower();
if( pFtn && pFtn->GetRef() )
{
const sal_uInt16 nRefNum = pNew->GetPhyPageNum();
if( pFtn->GetRef()->GetPhyPageNum() < nRefNum )
break;
}
}
//Gotcha! The following page is wrong, therefore we need to
//insert a new one.
if ( eMakePage == MAKEPAGE_INSERT )
{
bNewPg = true;
SwPageFrm *pPg = pOldLayLeaf ?
pOldLayLeaf->FindPageFrm() : 0;
if ( pPg && pPg->IsEmptyPage() )
// Don't insert behind. Insert before the EmptyPage.
pPg = (SwPageFrm*)pPg->GetPrev();
if ( !pPg || pPg == pNew )
pPg = FindPageFrm();
InsertPage( pPg, sal_False );
pLayLeaf = GetNextLayoutLeaf();
pOldLayLeaf = 0;
continue;
}
else
pLayLeaf = 0;
}
}
break;
}
else
{
// There's no other matching LayoutFrm, so we have to insert
// a new page.
if ( eMakePage == MAKEPAGE_APPEND || eMakePage == MAKEPAGE_INSERT )
{
InsertPage(
pOldLayLeaf ? pOldLayLeaf->FindPageFrm() : FindPageFrm(),
sal_False );
// And again from the start.
pLayLeaf = pOldLayLeaf ? pOldLayLeaf : GetNextLayoutLeaf();
}
else
break;
}
}
return pLayLeaf;
}
/*************************************************************************
|*
|* SwFrm::GetPrevLeaf()
|*
|* Beschreibung Returns the previous layout leaf where we can move
|* the frame.
|*
|*************************************************************************/
SwLayoutFrm *SwFrm::GetPrevLeaf( MakePageType )
{
OSL_ENSURE( !IsInFtn(), "GetPrevLeaf(), don't call me for Ftn." );
const bool bBody = IsInDocBody(); // If I'm coming from the DocBody,
// I want to end up in the body.
const sal_Bool bFly = IsInFly();
SwLayoutFrm *pLayLeaf = GetPrevLayoutLeaf();
SwLayoutFrm *pPrevLeaf = 0;
while ( pLayLeaf )
{
if ( pLayLeaf->IsInTab() || // Never go into tables.
pLayLeaf->IsInSct() ) // Same goes for sections!
pLayLeaf = pLayLeaf->GetPrevLayoutLeaf();
else if ( bBody && pLayLeaf->IsInDocBody() )
{
if ( pLayLeaf->Lower() )
break;
pPrevLeaf = pLayLeaf;
pLayLeaf = pLayLeaf->GetPrevLayoutLeaf();
if ( pLayLeaf )
SwFlowFrm::SetMoveBwdJump( sal_True );
}
else if ( bFly )
break; //Cntnts in Flys should accept any layout leaf.
else
pLayLeaf = pLayLeaf->GetPrevLayoutLeaf();
}
return pLayLeaf ? pLayLeaf : pPrevLeaf;
}
/*************************************************************************
|*
|* SwFlowFrm::IsPrevObjMove()
|*
|*************************************************************************/
sal_Bool SwFlowFrm::IsPrevObjMove() const
{
//sal_True The FlowFrm must respect the a border of the predecessor, also needs
// to insert a break if required.
//!!!!!!!!!!!Hack!!!!!!!!!!!
const ViewShell *pSh = rThis.getRootFrm()->GetCurrShell();
if( pSh && pSh->GetViewOptions()->getBrowseMode() )
return sal_False;
SwFrm *pPre = rThis.FindPrev();
if ( pPre && pPre->GetDrawObjs() )
{
OSL_ENSURE( SwFlowFrm::CastFlowFrm( pPre ), "new flowfrm?" );
if( SwFlowFrm::CastFlowFrm( pPre )->IsAnFollow( this ) )
return sal_False;
SwLayoutFrm* pPreUp = pPre->GetUpper();
// If the upper is a SectionFrm, or a column of a SectionFrm, we're
// allowed to protrude out of it. However, we need to respect the
// Upper of the SectionFrm.
if( pPreUp->IsInSct() )
{
if( pPreUp->IsSctFrm() )
pPreUp = pPreUp->GetUpper();
else if( pPreUp->IsColBodyFrm() &&
pPreUp->GetUpper()->GetUpper()->IsSctFrm() )
pPreUp = pPreUp->GetUpper()->GetUpper()->GetUpper();
}
// #i26945# - re-factoring
// use <GetVertPosOrientFrm()> to determine, if object has followed the
// text flow to the next layout frame
for ( sal_uInt16 i = 0; i < pPre->GetDrawObjs()->Count(); ++i )
{
// #i28701# - consider changed type of
// <SwSortedObjs> entries.
const SwAnchoredObject* pObj = (*pPre->GetDrawObjs())[i];
// OD 2004-01-20 #110582# - do not consider hidden objects
// #i26945# - do not consider object, which
// doesn't follow the text flow.
if ( pObj->GetFrmFmt().GetDoc()->IsVisibleLayerId(
pObj->GetDrawObj()->GetLayer() ) &&
pObj->GetFrmFmt().GetFollowTextFlow().GetValue() )
{
const SwLayoutFrm* pVertPosOrientFrm = pObj->GetVertPosOrientFrm();
if ( pVertPosOrientFrm &&
pPreUp != pVertPosOrientFrm &&
!pPreUp->IsAnLower( pVertPosOrientFrm ) )
{
return sal_True;
}
}
}
}
return sal_False;
}
/*************************************************************************
|*
|* sal_Bool SwFlowFrm::IsPageBreak()
|*
|* Description If there's a hard page break before the Frm AND there's a
|* predecessor on the same page, sal_True is returned (we need to create a
|* new PageBreak). Otherwise, returns sal_False.
|* If bAct is set to sal_True, this function returns sal_True if
|* there's a PageBreak.
|* Of course, we don't evaluate the hard page break for follows.
|* The page break is in it's own FrmFmt (BEFORE) or in the FrmFmt of the
|* predecessor (AFTER). If there's no predecessor on the page, we don't
|* need to think further.
|* Also, a page break (or the need for one) is also present if
|* the FrmFmt contains a PageDesc.
|* The implementation works only on CntntFrms! - the definition
|* of the predecessor is not clear for LayoutFrms.
|*
|*************************************************************************/
sal_Bool SwFlowFrm::IsPageBreak( sal_Bool bAct ) const
{
if ( !IsFollow() && rThis.IsInDocBody() &&
( !rThis.IsInTab() || ( rThis.IsTabFrm() && !rThis.GetUpper()->IsInTab() ) ) ) // i66968
{
const ViewShell *pSh = rThis.getRootFrm()->GetCurrShell();
if( pSh && pSh->GetViewOptions()->getBrowseMode() )
return sal_False;
const SwAttrSet *pSet = rThis.GetAttrSet();
// Determine predecessor
const SwFrm *pPrev = rThis.FindPrev();
while ( pPrev && ( !pPrev->IsInDocBody() ||
( pPrev->IsTxtFrm() && ((SwTxtFrm*)pPrev)->IsHiddenNow() ) ) )
pPrev = pPrev->FindPrev();
if ( pPrev )
{
OSL_ENSURE( pPrev->IsInDocBody(), "IsPageBreak: Not in DocBody?" );
if ( bAct )
{ if ( rThis.FindPageFrm() == pPrev->FindPageFrm() )
return sal_False;
}
else
{ if ( rThis.FindPageFrm() != pPrev->FindPageFrm() )
return sal_False;
}
const SvxBreak eBreak = pSet->GetBreak().GetBreak();
if ( eBreak == SVX_BREAK_PAGE_BEFORE || eBreak == SVX_BREAK_PAGE_BOTH )
return sal_True;
else
{
const SvxBreak &ePrB = pPrev->GetAttrSet()->GetBreak().GetBreak();
if ( ePrB == SVX_BREAK_PAGE_AFTER ||
ePrB == SVX_BREAK_PAGE_BOTH ||
pSet->GetPageDesc().GetPageDesc() )
return sal_True;
}
}
}
return sal_False;
}
/*************************************************************************
|*
|* sal_Bool SwFlowFrm::IsColBreak()
|*
|* If there's a hard column break before the Frm AND there is
|* a predecessor in the same column, we return sal_True (we need to create
|* a ColBreak). Otherwise, we return sal_False.
|* If bAct is set to sal_True, we return sal_True if there's a ColBreak.
|* Of course, we don't evaluate the hard column break for follows.
|*
|* The column break is in it's own FrmFmt (BEFORE) or in the FrmFmt of the
|* predecessor (AFTER). If there's no predecessor in the column, we don't
|* need to think further.
|* The implementation works only on CntntFrms! - the definition
|* of the predecessor is not clear for LayoutFrms.
|*
|*************************************************************************/
sal_Bool SwFlowFrm::IsColBreak( sal_Bool bAct ) const
{
if ( !IsFollow() && (rThis.IsMoveable() || bAct) )
{
const SwFrm *pCol = rThis.FindColFrm();
if ( pCol )
{
// Determine predecessor
const SwFrm *pPrev = rThis.FindPrev();
while( pPrev && ( ( !pPrev->IsInDocBody() && !rThis.IsInFly() ) ||
( pPrev->IsTxtFrm() && ((SwTxtFrm*)pPrev)->IsHiddenNow() ) ) )
pPrev = pPrev->FindPrev();
if ( pPrev )
{
if ( bAct )
{ if ( pCol == pPrev->FindColFrm() )
return sal_False;
}
else
{ if ( pCol != pPrev->FindColFrm() )
return sal_False;
}
const SvxBreak eBreak = rThis.GetAttrSet()->GetBreak().GetBreak();
if ( eBreak == SVX_BREAK_COLUMN_BEFORE ||
eBreak == SVX_BREAK_COLUMN_BOTH )
return sal_True;
else
{
const SvxBreak &ePrB = pPrev->GetAttrSet()->GetBreak().GetBreak();
if ( ePrB == SVX_BREAK_COLUMN_AFTER ||
ePrB == SVX_BREAK_COLUMN_BOTH )
return sal_True;
}
}
}
}
return sal_False;
}
sal_Bool SwFlowFrm::HasParaSpaceAtPages( sal_Bool bSct ) const
{
if( rThis.IsInSct() )
{
const SwFrm* pTmp = rThis.GetUpper();
while( pTmp )
{
if( pTmp->IsCellFrm() || pTmp->IsFlyFrm() ||
pTmp->IsFooterFrm() || pTmp->IsHeaderFrm() ||
( pTmp->IsFtnFrm() && !((SwFtnFrm*)pTmp)->GetMaster() ) )
return sal_True;
if( pTmp->IsPageFrm() )
return ( pTmp->GetPrev() && !IsPageBreak(sal_True) ) ? sal_False : sal_True;
if( pTmp->IsColumnFrm() && pTmp->GetPrev() )
return IsColBreak( sal_True );
if( pTmp->IsSctFrm() && ( !bSct || pTmp->GetPrev() ) )
return sal_False;
pTmp = pTmp->GetUpper();
}
OSL_FAIL( "HasParaSpaceAtPages: Where's my page?" );
return sal_False;
}
if( !rThis.IsInDocBody() || ( rThis.IsInTab() && !rThis.IsTabFrm()) ||
IsPageBreak( sal_True ) || ( rThis.FindColFrm() && IsColBreak( sal_True ) ) )
return sal_True;
const SwFrm* pTmp = rThis.FindColFrm();
if( pTmp )
{
if( pTmp->GetPrev() )
return sal_False;
}
else
pTmp = &rThis;
pTmp = pTmp->FindPageFrm();
return pTmp && !pTmp->GetPrev();
}
/** helper method to determine previous frame for calculation of the
upper space
OD 2004-03-10 #i11860#
@author OD
*/
const SwFrm* SwFlowFrm::_GetPrevFrmForUpperSpaceCalc( const SwFrm* _pProposedPrevFrm ) const
{
const SwFrm* pPrevFrm = _pProposedPrevFrm
? _pProposedPrevFrm
: rThis.GetPrev();
// Skip hidden paragraphs and empty sections
while ( pPrevFrm &&
( ( pPrevFrm->IsTxtFrm() &&
static_cast<const SwTxtFrm*>(pPrevFrm)->IsHiddenNow() ) ||
( pPrevFrm->IsSctFrm() &&
!static_cast<const SwSectionFrm*>(pPrevFrm)->GetSection() ) ) )
{
pPrevFrm = pPrevFrm->GetPrev();
}
// Special case: no direct previous frame is found but frame is in footnote
// Search for a previous frame in previous footnote,
// if frame isn't in a section, which is also in the footnote
if ( !pPrevFrm && rThis.IsInFtn() &&
( rThis.IsSctFrm() ||
!rThis.IsInSct() || !rThis.FindSctFrm()->IsInFtn() ) )
{
const SwFtnFrm* pPrevFtnFrm =
static_cast<const SwFtnFrm*>(rThis.FindFtnFrm()->GetPrev());
if ( pPrevFtnFrm )
{
pPrevFrm = pPrevFtnFrm->GetLastLower();
// Skip hidden paragraphs and empty sections
while ( pPrevFrm &&
( ( pPrevFrm->IsTxtFrm() &&
static_cast<const SwTxtFrm*>(pPrevFrm)->IsHiddenNow() ) ||
( pPrevFrm->IsSctFrm() &&
!static_cast<const SwSectionFrm*>(pPrevFrm)->GetSection() ) ) )
{
pPrevFrm = pPrevFrm->GetPrev();
}
}
}
// Special case: found previous frame is a section
// Search for the last content in the section
if( pPrevFrm && pPrevFrm->IsSctFrm() )
{
const SwSectionFrm* pPrevSectFrm =
static_cast<const SwSectionFrm*>(pPrevFrm);
pPrevFrm = pPrevSectFrm->FindLastCntnt();
// If the last content is in a table _inside_ the section,
// take the table herself.
// OD 2004-02-18 #106629# - correction:
// Check directly, if table is inside table, instead of indirectly
// by checking, if section isn't inside a table
if ( pPrevFrm && pPrevFrm->IsInTab() )
{
const SwTabFrm* pTableFrm = pPrevFrm->FindTabFrm();
if ( pPrevSectFrm->IsAnLower( pTableFrm ) )
{
pPrevFrm = pTableFrm;
}
}
// OD 2004-02-18 #106629# correction: skip hidden text frames
while ( pPrevFrm &&
pPrevFrm->IsTxtFrm() &&
static_cast<const SwTxtFrm*>(pPrevFrm)->IsHiddenNow() )
{
pPrevFrm = pPrevFrm->GetPrev();
}
}
return pPrevFrm;
}
/// Compare styles attached to these text frames.
static bool lcl_IdenticalStyles(const SwFrm* pPrevFrm, const SwFrm* pFrm)
{
SwTxtFmtColl *pPrevFmtColl = 0;
if (pPrevFrm && pPrevFrm->IsTxtFrm())
{
SwTxtFrm *pTxtFrm = ( SwTxtFrm * ) pPrevFrm;
pPrevFmtColl = dynamic_cast<SwTxtFmtColl*>(pTxtFrm->GetTxtNode()->GetFmtColl());
}
bool bIdenticalStyles = false;
if (pFrm && pFrm->IsTxtFrm())
{
SwTxtFrm *pTxtFrm = ( SwTxtFrm * ) pFrm;
SwTxtFmtColl *pFmtColl = dynamic_cast<SwTxtFmtColl*>(pTxtFrm->GetTxtNode()->GetFmtColl());
bIdenticalStyles = pPrevFmtColl == pFmtColl;
}
return bIdenticalStyles;
}
static bool lcl_getContextualSpacing(const SwFrm* pPrevFrm)
{
bool bRet;
SwBorderAttrAccess *pAccess = new SwBorderAttrAccess( SwFrm::GetCache(), pPrevFrm );
const SwBorderAttrs *pAttrs = pAccess->Get();
bRet = pAttrs->GetULSpace().GetContext();
delete pAccess;
return bRet;
}
// OD 2004-03-12 #i11860# - add 3rd parameter <_bConsiderGrid>
SwTwips SwFlowFrm::CalcUpperSpace( const SwBorderAttrs *pAttrs,
const SwFrm* pPr,
const bool _bConsiderGrid ) const
{
// OD 2004-03-10 #i11860# - use new method <GetPrevFrmForUpperSpaceCalc(..)>
const SwFrm* pPrevFrm = _GetPrevFrmForUpperSpaceCalc( pPr );
SwBorderAttrAccess *pAccess;
SwFrm* pOwn;
if( !pAttrs )
{
if( rThis.IsSctFrm() )
{
SwSectionFrm* pFoll = &((SwSectionFrm&)rThis);
do
pOwn = pFoll->ContainsAny();
while( !pOwn && 0 != ( pFoll = pFoll->GetFollow() ) );
if( !pOwn )
return 0;
}
else
pOwn = &rThis;
pAccess= new SwBorderAttrAccess( SwFrm::GetCache(), pOwn );
pAttrs = pAccess->Get();
}
else
{
pAccess = NULL;
pOwn = &rThis;
}
SwTwips nUpper = 0;
// OD 06.01.2004 #i11859#
{
const IDocumentSettingAccess* pIDSA = rThis.GetUpper()->GetFmt()->getIDocumentSettingAccess();
const bool bUseFormerLineSpacing = pIDSA->get(IDocumentSettingAccess::OLD_LINE_SPACING);
if( pPrevFrm )
{
// OD 2004-03-10 #i11860# - use new method to determine needed spacing
// values of found previous frame and use these values.
SwTwips nPrevLowerSpace = 0;
SwTwips nPrevLineSpacing = 0;
// #i102458#
bool bPrevLineSpacingPorportional = false;
GetSpacingValuesOfFrm( (*pPrevFrm),
nPrevLowerSpace, nPrevLineSpacing,
bPrevLineSpacingPorportional );
if( pIDSA->get(IDocumentSettingAccess::PARA_SPACE_MAX) )
{
nUpper = nPrevLowerSpace + pAttrs->GetULSpace().GetUpper();
SwTwips nAdd = nPrevLineSpacing;
// OD 07.01.2004 #i11859# - consideration of the line spacing
// for the upper spacing of a text frame
if ( bUseFormerLineSpacing )
{
// former consideration
if ( pOwn->IsTxtFrm() )
{
nAdd = Max( nAdd, static_cast<SwTxtFrm&>(rThis).GetLineSpace() );
}
nUpper += nAdd;
}
else
{
// new consideration:
// Only the proportional line spacing of the previous
// text frame is considered for the upper spacing and
// the line spacing values are add up instead of
// building its maximum.
if ( pOwn->IsTxtFrm() )
{
// #i102458#
// Correction:
// A proportional line spacing of the previous text frame
// is added up to a own leading line spacing.
// Otherwise, the maximum of the leading line spacing
// of the previous text frame and the own leading line
// spacing is built.
if ( bPrevLineSpacingPorportional )
{
nAdd += static_cast<SwTxtFrm&>(rThis).GetLineSpace( true );
}
else
{
nAdd = Max( nAdd, static_cast<SwTxtFrm&>(rThis).GetLineSpace( true ) );
}
}
nUpper += nAdd;
}
}
else
{
nUpper = Max( static_cast<long>(nPrevLowerSpace),
static_cast<long>(pAttrs->GetULSpace().GetUpper()) );
// OD 07.01.2004 #i11859# - consideration of the line spacing
// for the upper spacing of a text frame
if ( bUseFormerLineSpacing )
{
// former consideration
if ( pOwn->IsTxtFrm() )
nUpper = Max( nUpper, ((SwTxtFrm*)pOwn)->GetLineSpace() );
if ( nPrevLineSpacing != 0 )
{
nUpper = Max( nUpper, nPrevLineSpacing );
}
}
else
{
// new consideration:
// Only the proportional line spacing of the previous
// text frame is considered for the upper spacing and
// the line spacing values are add up and added to
// the paragraph spacing instead of building the
// maximum of the line spacings and the paragraph spacing.
SwTwips nAdd = nPrevLineSpacing;
if ( pOwn->IsTxtFrm() )
{
// #i102458#
// Correction:
// A proportional line spacing of the previous text frame
// is added up to a own leading line spacing.
// Otherwise, the maximum of the leading line spacing
// of the previous text frame and the own leading line
// spacing is built.
if ( bPrevLineSpacingPorportional )
{
nAdd += static_cast<SwTxtFrm&>(rThis).GetLineSpace( true );
}
else
{
nAdd = Max( nAdd, static_cast<SwTxtFrm&>(rThis).GetLineSpace( true ) );
}
}
nUpper += nAdd;
}
}
}
else if ( pIDSA->get(IDocumentSettingAccess::PARA_SPACE_MAX_AT_PAGES) &&
CastFlowFrm( pOwn )->HasParaSpaceAtPages( rThis.IsSctFrm() ) )
{
nUpper = pAttrs->GetULSpace().GetUpper();
}
}
// OD 2004-02-26 #i25029# - pass previous frame <pPrevFrm>
// to method <GetTopLine(..)>, if parameter <pPr> is set.
// Note: parameter <pPr> is set, if method is called from <SwTxtFrm::WouldFit(..)>
nUpper += pAttrs->GetTopLine( rThis, (pPr ? pPrevFrm : 0L) );
// OD 2004-03-12 #i11860# - consider value of new parameter <_bConsiderGrid>
// and use new method <GetUpperSpaceAmountConsideredForPageGrid(..)>
//consider grid in square page mode
if ( _bConsiderGrid && rThis.GetUpper()->GetFmt()->GetDoc()->IsSquaredPageMode() )
{
nUpper += _GetUpperSpaceAmountConsideredForPageGrid( nUpper );
}
bool bContextualSpacing = pAttrs->GetULSpace().GetContext();
delete pAccess;
if (bContextualSpacing && pPrevFrm && lcl_getContextualSpacing(pPrevFrm)
&& lcl_IdenticalStyles(pPrevFrm, &rThis))
{
return 0;
}
else
return nUpper;
}
/** method to detemine the upper space amount, which is considered for
the page grid
OD 2004-03-12 #i11860#
Precondition: Position of frame is valid.
@author OD
*/
SwTwips SwFlowFrm::_GetUpperSpaceAmountConsideredForPageGrid(
const SwTwips _nUpperSpaceWithoutGrid ) const
{
SwTwips nUpperSpaceAmountConsideredForPageGrid = 0;
if ( rThis.IsInDocBody() && rThis.GetAttrSet()->GetParaGrid().GetValue() )
{
const SwPageFrm* pPageFrm = rThis.FindPageFrm();
GETGRID( pPageFrm )
if( pGrid )
{
const SwFrm* pBodyFrm = pPageFrm->FindBodyCont();
if ( pBodyFrm )
{
const long nGridLineHeight =
pGrid->GetBaseHeight() + pGrid->GetRubyHeight();
SWRECTFN( (&rThis) )
const SwTwips nBodyPrtTop = (pBodyFrm->*fnRect->fnGetPrtTop)();
const SwTwips nProposedPrtTop =
(*fnRect->fnYInc)( (rThis.Frm().*fnRect->fnGetTop)(),
_nUpperSpaceWithoutGrid );
const SwTwips nSpaceAbovePrtTop =
(*fnRect->fnYDiff)( nProposedPrtTop, nBodyPrtTop );
const SwTwips nSpaceOfCompleteLinesAbove =
nGridLineHeight * ( nSpaceAbovePrtTop / nGridLineHeight );
SwTwips nNewPrtTop =
(*fnRect->fnYInc)( nBodyPrtTop, nSpaceOfCompleteLinesAbove );
if ( (*fnRect->fnYDiff)( nProposedPrtTop, nNewPrtTop ) > 0 )
{
nNewPrtTop = (*fnRect->fnYInc)( nNewPrtTop, nGridLineHeight );
}
const SwTwips nNewUpperSpace =
(*fnRect->fnYDiff)( nNewPrtTop,
(rThis.Frm().*fnRect->fnGetTop)() );
nUpperSpaceAmountConsideredForPageGrid =
nNewUpperSpace - _nUpperSpaceWithoutGrid;
OSL_ENSURE( nUpperSpaceAmountConsideredForPageGrid >= 0,
"<SwFlowFrm::GetUpperSpaceAmountConsideredForPageGrid(..)> - negative space considered for page grid!" );
}
}
}
return nUpperSpaceAmountConsideredForPageGrid;
}
/** method to determent the upper space amount, which is considered for
the previous frame
OD 2004-03-11 #i11860#
@author OD
*/
SwTwips SwFlowFrm::_GetUpperSpaceAmountConsideredForPrevFrm() const
{
SwTwips nUpperSpaceAmountOfPrevFrm = 0;
const SwFrm* pPrevFrm = _GetPrevFrmForUpperSpaceCalc();
if ( pPrevFrm )
{
SwTwips nPrevLowerSpace = 0;
SwTwips nPrevLineSpacing = 0;
// #i102458#
bool bDummy = false;
GetSpacingValuesOfFrm( (*pPrevFrm), nPrevLowerSpace, nPrevLineSpacing, bDummy );
if ( nPrevLowerSpace > 0 || nPrevLineSpacing > 0 )
{
const IDocumentSettingAccess* pIDSA = rThis.GetUpper()->GetFmt()->getIDocumentSettingAccess();
if ( pIDSA->get(IDocumentSettingAccess::PARA_SPACE_MAX) ||
!pIDSA->get(IDocumentSettingAccess::OLD_LINE_SPACING) )
{
nUpperSpaceAmountOfPrevFrm = nPrevLowerSpace + nPrevLineSpacing;
}
else
{
nUpperSpaceAmountOfPrevFrm = Max( nPrevLowerSpace, nPrevLineSpacing );
}
}
}
return nUpperSpaceAmountOfPrevFrm;
}
/** method to determine the upper space amount, which is considered for
the previous frame and the page grid, if option 'Use former object
positioning' is OFF
OD 2004-03-18 #i11860#
@author OD
*/
SwTwips SwFlowFrm::GetUpperSpaceAmountConsideredForPrevFrmAndPageGrid() const
{
SwTwips nUpperSpaceAmountConsideredForPrevFrmAndPageGrid = 0;
if ( !rThis.GetUpper()->GetFmt()->getIDocumentSettingAccess()->get(IDocumentSettingAccess::USE_FORMER_OBJECT_POS) )
{
nUpperSpaceAmountConsideredForPrevFrmAndPageGrid =
_GetUpperSpaceAmountConsideredForPrevFrm() +
_GetUpperSpaceAmountConsideredForPageGrid( CalcUpperSpace( 0L, 0L, false ) );
}
return nUpperSpaceAmountConsideredForPrevFrmAndPageGrid;
}
/** calculation of lower space
OD 2004-03-02 #106629#
@author OD
*/
SwTwips SwFlowFrm::CalcLowerSpace( const SwBorderAttrs* _pAttrs ) const
{
SwTwips nLowerSpace = 0;
SwBorderAttrAccess* pAttrAccess = 0L;
if ( !_pAttrs )
{
pAttrAccess = new SwBorderAttrAccess( SwFrm::GetCache(), &rThis );
_pAttrs = pAttrAccess->Get();
}
sal_Bool bCommonBorder = sal_True;
if ( rThis.IsInSct() && rThis.GetUpper()->IsColBodyFrm() )
{
const SwSectionFrm* pSectFrm = rThis.FindSctFrm();
bCommonBorder = pSectFrm->GetFmt()->GetBalancedColumns().GetValue();
}
nLowerSpace = bCommonBorder ?
_pAttrs->GetBottomLine( rThis ) :
_pAttrs->CalcBottomLine();
// #i26250#
// - correct consideration of table frames
// - use new method <CalcAddLowerSpaceAsLastInTableCell(..)>
if ( ( ( rThis.IsTabFrm() && rThis.GetUpper()->IsInTab() ) ||
// #115759# - no lower spacing, if frame has a follow
( rThis.IsInTab() && !GetFollow() ) ) &&
!rThis.GetIndNext() )
{
nLowerSpace += CalcAddLowerSpaceAsLastInTableCell( _pAttrs );
}
delete pAttrAccess;
return nLowerSpace;
}
/** calculation of the additional space to be considered, if flow frame
is the last inside a table cell
OD 2004-07-16 #i26250#
@author OD
*/
SwTwips SwFlowFrm::CalcAddLowerSpaceAsLastInTableCell(
const SwBorderAttrs* _pAttrs ) const
{
SwTwips nAdditionalLowerSpace = 0;
if ( rThis.GetUpper()->GetFmt()->getIDocumentSettingAccess()->get(IDocumentSettingAccess::ADD_PARA_SPACING_TO_TABLE_CELLS) )
{
const SwFrm* pFrm = &rThis;
if ( pFrm->IsSctFrm() )
{
const SwSectionFrm* pSectFrm = static_cast<const SwSectionFrm*>(pFrm);
pFrm = pSectFrm->FindLastCntnt();
if ( pFrm && pFrm->IsInTab() )
{
const SwTabFrm* pTableFrm = pFrm->FindTabFrm();
if ( pSectFrm->IsAnLower( pTableFrm ) )
{
pFrm = pTableFrm;
}
}
}
SwBorderAttrAccess* pAttrAccess = 0L;
if ( !_pAttrs || pFrm != &rThis )
{
pAttrAccess = new SwBorderAttrAccess( SwFrm::GetCache(), pFrm );
_pAttrs = pAttrAccess->Get();
}
nAdditionalLowerSpace += _pAttrs->GetULSpace().GetLower();
delete pAttrAccess;
}
return nAdditionalLowerSpace;
}
/*************************************************************************
|*
|* sal_Bool SwFlowFrm::CheckMoveFwd()
|*
|* Description Moves the Frm forward if it seems necessary regarding
|* the current conditions and attributes.
|*
|*************************************************************************/
sal_Bool SwFlowFrm::CheckMoveFwd( bool& rbMakePage, sal_Bool bKeep, sal_Bool )
{
const SwFrm* pNxt = rThis.GetIndNext();
if ( bKeep && //!bMovedBwd &&
( !pNxt || ( pNxt->IsTxtFrm() && ((SwTxtFrm*)pNxt)->IsEmptyMaster() ) ) &&
( 0 != (pNxt = rThis.FindNext()) ) && IsKeepFwdMoveAllowed() )
{
if( pNxt->IsSctFrm() )
{ // Don't get fooled by empty SectionFrms
const SwFrm* pTmp = NULL;
while( pNxt && pNxt->IsSctFrm() &&
( !((SwSectionFrm*)pNxt)->GetSection() ||
0 == ( pTmp = ((SwSectionFrm*)pNxt)->ContainsAny() ) ) )
{
pNxt = pNxt->FindNext();
pTmp = NULL;
}
if( pTmp )
pNxt = pTmp; // the content of the next notempty sectionfrm
}
if( pNxt && pNxt->GetValidPosFlag() )
{
bool bMove = false;
const SwSectionFrm *pSct = rThis.FindSctFrm();
if( pSct && !pSct->GetValidSizeFlag() )
{
const SwSectionFrm* pNxtSct = pNxt->FindSctFrm();
if( pNxtSct && pSct->IsAnFollow( pNxtSct ) )
bMove = true;
}
else
bMove = true;
if( bMove )
{
//Keep together with the following frame
MoveFwd( rbMakePage, sal_False );
return sal_True;
}
}
}
sal_Bool bMovedFwd = sal_False;
if ( rThis.GetIndPrev() )
{
if ( IsPrevObjMove() ) // Should we care about objects of the Prev?
{
bMovedFwd = sal_True;
if ( !MoveFwd( rbMakePage, sal_False ) )
rbMakePage = false;
}
else
{
if ( IsPageBreak( sal_False ) )
{
while ( MoveFwd( rbMakePage, sal_True ) )
/* do nothing */;
rbMakePage = false;
bMovedFwd = sal_True;
}
else if ( IsColBreak ( sal_False ) )
{
const SwPageFrm *pPage = rThis.FindPageFrm();
SwFrm *pCol = rThis.FindColFrm();
do
{ MoveFwd( rbMakePage, sal_False );
SwFrm *pTmp = rThis.FindColFrm();
if( pTmp != pCol )
{
bMovedFwd = sal_True;
pCol = pTmp;
}
else
break;
} while ( IsColBreak( sal_False ) );
if ( pPage != rThis.FindPageFrm() )
rbMakePage = false;
}
}
}
return bMovedFwd;
}
/*************************************************************************
|*
|* sal_Bool SwFlowFrm::MoveFwd()
|*
|* Description Return value tells us whether the Frm has changed
|* the page.
|*
|*************************************************************************/
sal_Bool SwFlowFrm::MoveFwd( sal_Bool bMakePage, sal_Bool bPageBreak, sal_Bool bMoveAlways )
{
//!!!!MoveFtnCntFwd might need to be updated as well.
SwFtnBossFrm *pOldBoss = rThis.FindFtnBossFrm();
if ( rThis.IsInFtn() )
return ((SwCntntFrm&)rThis).MoveFtnCntFwd( bMakePage, pOldBoss );
if( !IsFwdMoveAllowed() && !bMoveAlways )
{
bool bNoFwd = true;
if( rThis.IsInSct() )
{
SwFtnBossFrm* pBoss = rThis.FindFtnBossFrm();
bNoFwd = !pBoss->IsInSct() || ( !pBoss->Lower()->GetNext() &&
!pBoss->GetPrev() );
}
// Allow the MoveFwd even if we do not have an IndPrev in these cases:
if ( rThis.IsInTab() &&
( !rThis.IsTabFrm() ||
( rThis.GetUpper()->IsInTab() &&
rThis.GetUpper()->FindTabFrm()->IsFwdMoveAllowed() ) ) &&
0 != const_cast<SwFrm&>(rThis).GetNextCellLeaf( MAKEPAGE_NONE ) )
{
bNoFwd = false;
}
if( bNoFwd )
{
// It's allowed to move PageBreaks if the Frm isn't the first
// one on the page.
if ( !bPageBreak )
return sal_False;
const SwFrm *pCol = rThis.FindColFrm();
if ( !pCol || !pCol->GetPrev() )
return sal_False;
}
}
sal_Bool bSamePage = sal_True;
SwLayoutFrm *pNewUpper =
rThis.GetLeaf( bMakePage ? MAKEPAGE_INSERT : MAKEPAGE_NONE, sal_True );
if ( pNewUpper )
{
PROTOCOL_ENTER( &rThis, PROT_MOVE_FWD, 0, 0 );
SwPageFrm *pOldPage = pOldBoss->FindPageFrm();
// We move ourself and all the direct successors before the
// first CntntFrm below the new Upper.
// If our NewUpper lies in a SectionFrm, we need to make sure
// that it won't destroy itself in Calc.
SwSectionFrm* pSect = pNewUpper->FindSctFrm();
if( pSect )
{
// If we only switch column within our SectionFrm, we better don't
// call Calc, as this would format the SectionFrm, which in turn would
// call us again, etc.
if( pSect != rThis.FindSctFrm() )
{
bool bUnlock = !pSect->IsColLocked();
pSect->ColLock();
pNewUpper->Calc();
if( bUnlock )
pSect->ColUnlock();
}
}
// Do not calculate split cell frames.
else if ( !pNewUpper->IsCellFrm() || ((SwLayoutFrm*)pNewUpper)->Lower() )
pNewUpper->Calc();
SwFtnBossFrm *pNewBoss = pNewUpper->FindFtnBossFrm();
bool bBossChg = pNewBoss != pOldBoss;
pNewBoss = pNewBoss->FindFtnBossFrm( sal_True );
pOldBoss = pOldBoss->FindFtnBossFrm( sal_True );
SwPageFrm* pNewPage = pOldPage;
// First, we move the footnotes.
sal_Bool bFtnMoved = sal_False;
// #i26831#
// If pSect has just been created, the printing area of pSect has
// been calculated based on the first content of its follow.
// In this case we prefer to call a SimpleFormat for this new
// section after we inserted the contents. Otherwise the section
// frame will invalidate its lowers, if its printing area changes
// in SwSectionFrm::Format, which can cause loops.
const bool bForceSimpleFormat = pSect && pSect->HasFollow() &&
!pSect->ContainsAny();
if ( pNewBoss != pOldBoss )
{
pNewPage = pNewBoss->FindPageFrm();
bSamePage = pNewPage == pOldPage;
// Set deadline, so the footnotes don't think up
// silly things...
SWRECTFN( pOldBoss )
SwSaveFtnHeight aHeight( pOldBoss,
(pOldBoss->Frm().*fnRect->fnGetBottom)() );
SwCntntFrm* pStart = rThis.IsCntntFrm() ?
(SwCntntFrm*)&rThis : ((SwLayoutFrm&)rThis).ContainsCntnt();
OSL_ENSURE( pStart || ( rThis.IsTabFrm() && !((SwTabFrm&)rThis).Lower() ),
"MoveFwd: Missing Content" );
SwLayoutFrm* pBody = pStart ? ( pStart->IsTxtFrm() ?
(SwLayoutFrm*)((SwTxtFrm*)pStart)->FindBodyFrm() : 0 ) : 0;
if( pBody )
bFtnMoved = pBody->MoveLowerFtns( pStart, pOldBoss, pNewBoss,
sal_False);
}
// It's possible when dealing with SectionFrms that we have been moved
// by pNewUpper->Calc(), for instance into the pNewUpper.
// MoveSubTree or PasteTree respectively is not prepared to handle such a
// situation.
if( pNewUpper != rThis.GetUpper() )
{
// #i27145#
SwSectionFrm* pOldSct = 0;
if ( rThis.GetUpper()->IsSctFrm() )
{
pOldSct = static_cast<SwSectionFrm*>(rThis.GetUpper());
}
MoveSubTree( pNewUpper, pNewUpper->Lower() );
// #i27145#
if ( pOldSct && pOldSct->GetSection() )
{
// Prevent loops by setting the new height at
// the section frame if footnotes have been moved.
// Otherwise the call of SwLayNotify::~SwLayNotify() for
// the (invalid) section frame will invalidate the first
// lower of its follow, because it grows due to the removed
// footnotes.
// Note: If pOldSct has become empty during MoveSubTree, it
// has already been scheduled for removal. No SimpleFormat
// for these.
pOldSct->SimpleFormat();
}
// #i26831#
if ( bForceSimpleFormat )
{
pSect->SimpleFormat();
}
if ( bFtnMoved && !bSamePage )
{
pOldPage->UpdateFtnNum();
pNewPage->UpdateFtnNum();
}
if( bBossChg )
{
rThis.Prepare( PREP_BOSS_CHGD, 0, sal_False );
if( !bSamePage )
{
ViewShell *pSh = rThis.getRootFrm()->GetCurrShell();
if ( pSh && !pSh->Imp()->IsUpdateExpFlds() )
pSh->GetDoc()->SetNewFldLst(true); // Will be done by CalcLayout() later on!
pNewPage->InvalidateSpelling();
pNewPage->InvalidateSmartTags(); // SMARTTAGS
pNewPage->InvalidateAutoCompleteWords();
pNewPage->InvalidateWordCount();
}
}
}
// OD 30.10.2002 #97265# - no <CheckPageDesc(..)> in online layout
const ViewShell *pSh = rThis.getRootFrm()->GetCurrShell();
if ( !( pSh && pSh->GetViewOptions()->getBrowseMode() ) )
{
// #i106452#
// check page description not only in situation with sections.
if ( !bSamePage &&
( rThis.GetAttrSet()->GetPageDesc().GetPageDesc() ||
pOldPage->GetPageDesc()->GetFollow() != pNewPage->GetPageDesc() ) )
{
SwFrm::CheckPageDescs( pNewPage, sal_False );
}
}
}
return bSamePage;
}
/*************************************************************************
|*
|* sal_Bool SwFlowFrm::MoveBwd()
|*
|* Description Return value tells whether the Frm should change the page.
|* This should be called by derived classes.
|* The actual moving must be implemented in the subclasses.
|*
|*************************************************************************/
sal_Bool SwFlowFrm::MoveBwd( sal_Bool &rbReformat )
{
SwFlowFrm::SetMoveBwdJump( sal_False );
SwFtnFrm* pFtn = rThis.FindFtnFrm();
if ( pFtn && pFtn->IsBackMoveLocked() )
return sal_False;
// #115759# - text frames, which are directly inside
// tables aren't allowed to move backward.
if ( rThis.IsTxtFrm() && rThis.IsInTab() )
{
const SwLayoutFrm* pUpperFrm = rThis.GetUpper();
while ( pUpperFrm )
{
if ( pUpperFrm->IsTabFrm() )
{
return sal_False;
}
else if ( pUpperFrm->IsColumnFrm() && pUpperFrm->IsInSct() )
{
break;
}
pUpperFrm = pUpperFrm->GetUpper();
}
}
SwFtnBossFrm * pOldBoss = rThis.FindFtnBossFrm();
SwPageFrm * const pOldPage = pOldBoss->FindPageFrm();
SwLayoutFrm *pNewUpper = 0;
bool bCheckPageDescs = false;
bool bCheckPageDescOfNextPage = false;
if ( pFtn )
{
// If the footnote already sits on the same page/column as the reference,
// we can't flow back. The breaks don't need to be checked for footnotes.
// #i37084# FindLastCntnt does not necessarily
// have to have a result != 0
SwFrm* pRef = 0;
const bool bEndnote = pFtn->GetAttr()->GetFtn().IsEndNote();
if( bEndnote && pFtn->IsInSct() )
{
SwSectionFrm* pSect = pFtn->FindSctFrm();
if( pSect->IsEndnAtEnd() )
pRef = pSect->FindLastCntnt( FINDMODE_LASTCNT );
}
if( !pRef )
pRef = pFtn->GetRef();
OSL_ENSURE( pRef, "MoveBwd: Endnote for an empty section?" );
if( !bEndnote )
pOldBoss = pOldBoss->FindFtnBossFrm( sal_True );
SwFtnBossFrm *pRefBoss = pRef->FindFtnBossFrm( !bEndnote );
if ( pOldBoss != pRefBoss &&
// OD 08.11.2002 #104840# - use <SwLayoutFrm::IsBefore(..)>
( !bEndnote ||
pRefBoss->IsBefore( pOldBoss ) )
)
pNewUpper = rThis.GetLeaf( MAKEPAGE_FTN, sal_False );
}
else if ( IsPageBreak( sal_True ) ) // Do we have to respect a PageBreak?
{
// If the previous page doesn't have an Frm in the body,
// flowing back makes sense despite the PageBreak (otherwise,
// we'd get an empty page).
// Of course we need to overlook empty pages!
const SwFrm *pFlow = &rThis;
do
{
pFlow = pFlow->FindPrev();
} while ( pFlow &&
( pFlow->FindPageFrm() == pOldPage ||
!pFlow->IsInDocBody() ) );
if ( pFlow )
{
long nDiff = pOldPage->GetPhyPageNum() - pFlow->GetPhyPageNum();
if ( nDiff > 1 )
{
if ( ((SwPageFrm*)pOldPage->GetPrev())->IsEmptyPage() )
nDiff -= 1;
if ( nDiff > 1 )
{
pNewUpper = rThis.GetLeaf( MAKEPAGE_NONE, sal_False );
// #i53139#
// Now <pNewUpper> is a previous layout frame, which contains
// content. But the new upper layout frame has to be the next one.
// Thus, hack for issue i14206 no longer needed, but fix for issue 114442
// #136024# - correct fix for i53139
// Check for wrong page description before using next new upper.
// #i66051# - further correction of fix for i53139
// Check for correct type of new next upper layout frame
// #136538# - another correction of fix for i53139
// Assumption, that in all cases <pNewUpper> is a previous
// layout frame, which contains content, is wrong.
// #136538# - another correction of fix for i53139
// Beside type check, check also, if proposed new next upper
// frame is inside the same frame types.
// #i73194# - and yet another correction
// of fix for i53139:
// Assure that the new next upper layout frame doesn't
// equal the current one.
// E.g.: content is on page 3, on page 2 is only a 'ghost'
// section and on page 1 is normal content. Method <FindPrev(..)>
// will find the last content of page 1, but <GetLeaf(..)>
// returns new upper on page 2.
if ( pNewUpper->Lower() )
{
SwLayoutFrm* pNewNextUpper = pNewUpper->GetLeaf( MAKEPAGE_NONE, sal_True );
if ( pNewNextUpper &&
pNewNextUpper != rThis.GetUpper() &&
pNewNextUpper->GetType() == pNewUpper->GetType() &&
pNewNextUpper->IsInDocBody() == pNewUpper->IsInDocBody() &&
pNewNextUpper->IsInFtn() == pNewUpper->IsInFtn() &&
pNewNextUpper->IsInTab() == pNewUpper->IsInTab() &&
pNewNextUpper->IsInSct() == pNewUpper->IsInSct() &&
!rThis.WrongPageDesc( pNewNextUpper->FindPageFrm() ) )
{
pNewUpper = pNewNextUpper;
bCheckPageDescOfNextPage = true;
}
}
bCheckPageDescs = true;
}
}
}
}
else if ( IsColBreak( sal_True ) )
{
// If the previous column doesn't contain a CntntFrm, flowing back
// makes sense despite the ColumnBreak, as otherwise we'd get
// an empty column.
if( rThis.IsInSct() )
{
pNewUpper = rThis.GetLeaf( MAKEPAGE_NONE, sal_False );
if( pNewUpper && !SwFlowFrm::IsMoveBwdJump() &&
( pNewUpper->ContainsCntnt() ||
( ( !pNewUpper->IsColBodyFrm() ||
!pNewUpper->GetUpper()->GetPrev() ) &&
!pNewUpper->FindSctFrm()->GetPrev() ) ) )
{
pNewUpper = 0;
}
// #i53139#
// #i69409# - check <pNewUpper>
// #i71065# - check <SwFlowFrm::IsMoveBwdJump()>
else if ( pNewUpper && !SwFlowFrm::IsMoveBwdJump() )
{
// Now <pNewUpper> is a previous layout frame, which
// contains content. But the new upper layout frame
// has to be the next one.
// #136024# - correct fix for i53139
// Check for wrong page description before using next new upper.
// #i66051# - further correction of fix for i53139
// Check for correct type of new next upper layout frame
// #136538# - another correction of fix for i53139
// Beside type check, check also, if proposed new next upper
// frame is inside the same frame types.
SwLayoutFrm* pNewNextUpper = pNewUpper->GetLeaf( MAKEPAGE_NOSECTION, sal_True );
if ( pNewNextUpper &&
pNewNextUpper->GetType() == pNewUpper->GetType() &&
pNewNextUpper->IsInDocBody() == pNewUpper->IsInDocBody() &&
pNewNextUpper->IsInFtn() == pNewUpper->IsInFtn() &&
pNewNextUpper->IsInTab() == pNewUpper->IsInTab() &&
pNewNextUpper->IsInSct() == pNewUpper->IsInSct() &&
!rThis.WrongPageDesc( pNewNextUpper->FindPageFrm() ) )
{
pNewUpper = pNewNextUpper;
}
}
}
else
{
const SwFrm *pCol = rThis.FindColFrm();
bool bGoOn = true;
bool bJump = false;
do
{
if ( pCol->GetPrev() )
pCol = pCol->GetPrev();
else
{
bGoOn = false;
pCol = rThis.GetLeaf( MAKEPAGE_NONE, sal_False );
}
if ( pCol )
{
// ColumnFrms now with BodyFrm
SwLayoutFrm* pColBody = pCol->IsColumnFrm() ?
(SwLayoutFrm*)((SwLayoutFrm*)pCol)->Lower() :
(SwLayoutFrm*)pCol;
if ( pColBody->ContainsCntnt() )
{
bGoOn = false; // We have content here! we accept this
// only if GetLeaf() has set the MoveBwdJump.
if( SwFlowFrm::IsMoveBwdJump() )
{
pNewUpper = pColBody;
// #i53139#
// Now <pNewUpper> is a previous layout frame, which
// contains content. But the new upper layout frame
// has to be the next one.
// #136024# - correct fix for i53139
// Check for wrong page description before using next new upper.
// #i66051# - further correction of fix for i53139
// Check for correct type of new next upper layout frame
// #136538# - another correction of fix for i53139
// Beside type check, check also, if proposed new next upper
// frame is inside the same frame types.
// #i71065#
// Check that the proposed new next upper layout
// frame isn't the current one.
SwLayoutFrm* pNewNextUpper = pNewUpper->GetLeaf( MAKEPAGE_NONE, sal_True );
if ( pNewNextUpper &&
pNewNextUpper != rThis.GetUpper() &&
pNewNextUpper->GetType() == pNewUpper->GetType() &&
pNewNextUpper->IsInDocBody() == pNewUpper->IsInDocBody() &&
pNewNextUpper->IsInFtn() == pNewUpper->IsInFtn() &&
pNewNextUpper->IsInTab() == pNewUpper->IsInTab() &&
pNewNextUpper->IsInSct() == pNewUpper->IsInSct() &&
!rThis.WrongPageDesc( pNewNextUpper->FindPageFrm() ) )
{
pNewUpper = pNewNextUpper;
}
}
}
else
{
if( pNewUpper ) // We already had an empty column, in other
bJump = true; // words we skipped one.
pNewUpper = pColBody; // this empty column could be considered,
// but we continue searching nevertheless.
}
}
} while( bGoOn );
if( bJump )
SwFlowFrm::SetMoveBwdJump( sal_True );
}
}
else // No breaks - we can flow back.
pNewUpper = rThis.GetLeaf( MAKEPAGE_NONE, sal_False );
// #i27801# - no move backward of 'master' text frame,
// if - due to its object positioning - it isn't allowed to be on the new page frame
// #i44049# - add another condition for not moving backward
// If one of its objects has restarted the layout process, moving backward
// isn't sensible either.
// #i47697# - refine condition made for issue i44049
// - allow move backward as long as the anchored object is only temporarily
// positions considering its wrapping style.
if ( pNewUpper &&
rThis.IsTxtFrm() && !IsFollow() )
{
sal_uInt32 nToPageNum( 0L );
const bool bMoveFwdByObjPos = SwLayouter::FrmMovedFwdByObjPos(
*(pOldPage->GetFmt()->GetDoc()),
static_cast<SwTxtFrm&>(rThis),
nToPageNum );
if ( bMoveFwdByObjPos &&
pNewUpper->FindPageFrm()->GetPhyPageNum() < nToPageNum )
{
pNewUpper = 0;
}
// #i44049# - check, if one of its anchored objects
// has restarted the layout process.
else if ( rThis.GetDrawObjs() )
{
sal_uInt32 i = 0;
for ( ; i < rThis.GetDrawObjs()->Count(); ++i )
{
SwAnchoredObject* pAnchoredObj = (*rThis.GetDrawObjs())[i];
// #i47697# - refine condition - see above
if ( pAnchoredObj->RestartLayoutProcess() &&
!pAnchoredObj->IsTmpConsiderWrapInfluence() )
{
pNewUpper = 0;
break;
}
}
}
}
// With Follows, it's only allowed to flow back if there's no neighbor
// in the new environment (because that would be the Master).
// (6677) If however we skipped empty pages, we still have to move.
if ( pNewUpper && IsFollow() && pNewUpper->Lower() )
{
// #i79774#
// neglect empty sections in proposed new upper frame
bool bProposedNewUpperContainsOnlyEmptySections( true );
{
const SwFrm* pLower( pNewUpper->Lower() );
while ( pLower )
{
if ( pLower->IsSctFrm() &&
!dynamic_cast<const SwSectionFrm*>(pLower)->GetSection() )
{
pLower = pLower->GetNext();
continue;
}
else
{
bProposedNewUpperContainsOnlyEmptySections = false;
break;
}
}
}
if ( !bProposedNewUpperContainsOnlyEmptySections )
{
if ( SwFlowFrm::IsMoveBwdJump() )
{
// Don't move after the Master, but into the next empty page.
SwFrm *pFrm = pNewUpper->Lower();
while ( pFrm->GetNext() )
pFrm = pFrm->GetNext();
pNewUpper = pFrm->GetLeaf( MAKEPAGE_INSERT, sal_True );
if( pNewUpper == rThis.GetUpper() ) // Did we end up in the same place?
pNewUpper = NULL; // If so, moving is not needed.
}
else
pNewUpper = 0;
}
}
if ( pNewUpper && !ShouldBwdMoved( pNewUpper, sal_True, rbReformat ) )
{
if( !pNewUpper->Lower() )
{
if( pNewUpper->IsFtnContFrm() )
{
pNewUpper->Cut();
delete pNewUpper;
}
else
{
SwSectionFrm* pSectFrm = pNewUpper->FindSctFrm();
// #126020# - adjust check for empty section
// #130797# - correct fix #126020#
if ( pSectFrm && !pSectFrm->IsColLocked() &&
!pSectFrm->ContainsCntnt() && !pSectFrm->ContainsAny( true ) )
{
pSectFrm->DelEmpty( sal_True );
delete pSectFrm;
rThis.mbValidPos = sal_True;
}
}
}
pNewUpper = 0;
}
// OD 2004-05-26 #i21478# - don't move backward, if flow frame wants to
// keep with next frame and next frame is locked.
// #i38232# - If next frame is a table, do *not* check,
// if it's locked.
if ( pNewUpper && !IsFollow() &&
rThis.GetAttrSet()->GetKeep().GetValue() && rThis.GetIndNext() )
{
SwFrm* pIndNext = rThis.GetIndNext();
// #i38232#
if ( !pIndNext->IsTabFrm() )
{
// get first content of section, while empty sections are skipped
while ( pIndNext && pIndNext->IsSctFrm() )
{
if( static_cast<SwSectionFrm*>(pIndNext)->GetSection() )
{
SwFrm* pTmp = static_cast<SwSectionFrm*>(pIndNext)->ContainsAny();
if ( pTmp )
{
pIndNext = pTmp;
break;
}
}
pIndNext = pIndNext->GetIndNext();
}
OSL_ENSURE( !pIndNext || pIndNext->ISA(SwTxtFrm),
"<SwFlowFrm::MovedBwd(..)> - incorrect next found." );
if ( pIndNext && pIndNext->IsFlowFrm() &&
SwFlowFrm::CastFlowFrm(pIndNext)->IsJoinLocked() )
{
pNewUpper = 0L;
}
}
}
// #i65250#
// layout loop control for flowing content again and again moving
// backward under the same layout condition.
if ( pNewUpper && !IsFollow() &&
pNewUpper != rThis.GetUpper() &&
SwLayouter::MoveBwdSuppressed( *(pOldPage->GetFmt()->GetDoc()),
*this, *pNewUpper ) )
{
SwLayoutFrm* pNextNewUpper = pNewUpper->GetLeaf(
( !rThis.IsSctFrm() && rThis.IsInSct() )
? MAKEPAGE_NOSECTION
: MAKEPAGE_NONE,
sal_True );
// #i73194# - make code robust
OSL_ENSURE( pNextNewUpper, "<SwFlowFrm::MoveBwd(..)> - missing next new upper" );
if ( pNextNewUpper &&
( pNextNewUpper == rThis.GetUpper() ||
pNextNewUpper->GetType() != rThis.GetUpper()->GetType() ) )
{
pNewUpper = 0L;
OSL_FAIL( "<SwFlowFrm::MoveBwd(..)> - layout loop control for layout action <Move Backward> applied!" );
}
}
OSL_ENSURE( pNewUpper != rThis.GetUpper(),
"<SwFlowFrm::MoveBwd(..)> - moving backward to the current upper frame!? -> Please inform OD." );
if ( pNewUpper )
{
PROTOCOL_ENTER( &rThis, PROT_MOVE_BWD, 0, 0 );
if ( pNewUpper->IsFtnContFrm() )
{
//Kann sein, dass ich einen Container bekam.
SwFtnFrm *pOld = rThis.FindFtnFrm();
SwFtnFrm *pNew = new SwFtnFrm( pOld->GetFmt(), pOld,
pOld->GetRef(), pOld->GetAttr() );
if ( pOld->GetMaster() )
{
pNew->SetMaster( pOld->GetMaster() );
pOld->GetMaster()->SetFollow( pNew );
}
pNew->SetFollow( pOld );
pOld->SetMaster( pNew );
pNew->Paste( pNewUpper );
pNewUpper = pNew;
}
if( pNewUpper->IsFtnFrm() && rThis.IsInSct() )
{
SwSectionFrm* pSct = rThis.FindSctFrm();
// If we're in a section of a footnote, we may need to create
// a SwSectionFrm in the new upper
if( pSct->IsInFtn() )
{
SwFrm* pTmp = pNewUpper->Lower();
if( pTmp )
{
while( pTmp->GetNext() )
pTmp = pTmp->GetNext();
if( !pTmp->IsSctFrm() ||
((SwSectionFrm*)pTmp)->GetFollow() != pSct )
pTmp = NULL;
}
if( pTmp )
pNewUpper = (SwSectionFrm*)pTmp;
else
{
pSct = new SwSectionFrm( *pSct, sal_True );
pSct->Paste( pNewUpper );
pSct->Init();
pNewUpper = pSct;
pSct->SimpleFormat();
}
}
}
bool bUnlock = false;
sal_Bool bFollow = sal_False;
// Lock section. Otherwise, it could get destroyed if the only Cntnt
// moves e.g. from the second into the first column.
SwSectionFrm* pSect = pNewUpper->FindSctFrm();
if( pSect )
{
bUnlock = !pSect->IsColLocked();
pSect->ColLock();
bFollow = pSect->HasFollow();
}
pNewUpper->Calc();
rThis.Cut();
//
// optimization: format section, if its size is invalidated and if it's
// the new parent of moved backward frame.
bool bFormatSect( false );
if( bUnlock )
{
pSect->ColUnlock();
if( pSect->HasFollow() != bFollow )
{
pSect->InvalidateSize();
// - optimization
if ( pSect == pNewUpper )
bFormatSect = true;
}
}
rThis.Paste( pNewUpper );
// - optimization
if ( bFormatSect )
pSect->Calc();
SwPageFrm *pNewPage = rThis.FindPageFrm();
if( pNewPage != pOldPage )
{
rThis.Prepare( PREP_BOSS_CHGD, (const void*)pOldPage, sal_False );
ViewShell *pSh = rThis.getRootFrm()->GetCurrShell();
if ( pSh && !pSh->Imp()->IsUpdateExpFlds() )
pSh->GetDoc()->SetNewFldLst(true); // Will be done by CalcLayout() later on
pNewPage->InvalidateSpelling();
pNewPage->InvalidateSmartTags(); // SMARTTAGS
pNewPage->InvalidateAutoCompleteWords();
pNewPage->InvalidateWordCount();
// OD 30.10.2002 #97265# - no <CheckPageDesc(..)> in online layout
if ( !( pSh && pSh->GetViewOptions()->getBrowseMode() ) )
{
if ( bCheckPageDescs && pNewPage->GetNext() )
{
SwPageFrm* pStartPage = bCheckPageDescOfNextPage ?
pNewPage :
(SwPageFrm*)pNewPage->GetNext();
SwFrm::CheckPageDescs( pStartPage, sal_False);
}
else if ( rThis.GetAttrSet()->GetPageDesc().GetPageDesc() )
{
// First page could get empty for example by disabling
// a section
SwFrm::CheckPageDescs( (SwPageFrm*)pNewPage, sal_False);
}
}
}
}
return pNewUpper != 0;
}
/*************************************************************************
|*
|* SwFlowFrm::CastFlowFrm
|*
|*************************************************************************/
SwFlowFrm *SwFlowFrm::CastFlowFrm( SwFrm *pFrm )
{
if ( pFrm->IsCntntFrm() )
return (SwCntntFrm*)pFrm;
if ( pFrm->IsTabFrm() )
return (SwTabFrm*)pFrm;
if ( pFrm->IsSctFrm() )
return (SwSectionFrm*)pFrm;
return 0;
}
const SwFlowFrm *SwFlowFrm::CastFlowFrm( const SwFrm *pFrm )
{
if ( pFrm->IsCntntFrm() )
return (SwCntntFrm*)pFrm;
if ( pFrm->IsTabFrm() )
return (SwTabFrm*)pFrm;
if ( pFrm->IsSctFrm() )
return (SwSectionFrm*)pFrm;
return 0;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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