Files
libreoffice/sw/source/core/layout/calcmove.cxx
Michael Stahl 0295c8a34e sw: let SwTxtNode::GetTxt() return OUString
Change-Id: I36e777b2f623429773277e092284f7d2ba61e6ef
2013-02-18 20:16:07 +01:00

2047 lines
79 KiB
C++

/* -*- 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 "rootfrm.hxx"
#include "pagefrm.hxx"
#include "cntfrm.hxx"
#include "viewsh.hxx"
#include "doc.hxx"
#include "viewimp.hxx"
#include "viewopt.hxx"
#include "swtypes.hxx"
#include "dflyobj.hxx"
#include "dcontact.hxx"
#include "flyfrm.hxx"
#include "frmtool.hxx"
#include "txtftn.hxx"
#include "fmtftn.hxx"
#include <editeng/ulspitem.hxx>
#include <editeng/keepitem.hxx>
#include <vcl/outdev.hxx>
#include <fmtfsize.hxx>
#include <fmtanchr.hxx>
#include <fmtclbl.hxx>
#include "tabfrm.hxx"
#include "ftnfrm.hxx"
#include "txtfrm.hxx"
#include "pagedesc.hxx"
#include "ftninfo.hxx"
#include "sectfrm.hxx"
#include "dbg_lay.hxx"
// #i28701#
#include <sortedobjs.hxx>
#include <layouter.hxx>
// #i36347#
#include <flyfrms.hxx>
#include <ndtxt.hxx>
//------------------------------------------------------------------------
// Move methods
//------------------------------------------------------------------------
/*************************************************************************
|*
|* SwCntntFrm::ShouldBwdMoved()
|*
|* Description Return value tells whether the Frm should be moved.
|*
|*************************************************************************/
sal_Bool SwCntntFrm::ShouldBwdMoved( SwLayoutFrm *pNewUpper, sal_Bool, sal_Bool & )
{
if ( (SwFlowFrm::IsMoveBwdJump() || !IsPrevObjMove()))
{
// Floating back a frm uses a bit of time unfortunately.
// The most common case is the following: The Frm wants to float to
// somewhere where the FixSize is the same that the Frm itself has already.
// In that case it's pretty easy to check if the Frm has enough space
// for its VarSize. If this is NOT the case, we already know that
// we don't need to move.
// The Frm checks itself whether it has enough space - respecting the fact
// that it could possibly split itself if needed.
// If, however, the FixSize differs from the Frm or Flys are involved
// (either in the old or the new position), checking is pointless,
// and we have to move the Frm just to see what happens - if there's
// some space available to do it, that is.
// The FixSize of the containers of Cntnts is always the width.
// If we moved more than one sheet back (for example jumping over empty
// pages), we have to move either way. Otherwise, if the Frm doesn't fit
// into the page, empty pages wouldn't be respected anymore.
sal_uInt8 nMoveAnyway = 0;
SwPageFrm * const pNewPage = pNewUpper->FindPageFrm();
SwPageFrm *pOldPage = FindPageFrm();
if ( SwFlowFrm::IsMoveBwdJump() )
return sal_True;
if( IsInFtn() && IsInSct() )
{
SwFtnFrm* pFtn = FindFtnFrm();
SwSectionFrm* pMySect = pFtn->FindSctFrm();
if( pMySect && pMySect->IsFtnLock() )
{
SwSectionFrm *pSect = pNewUpper->FindSctFrm();
while( pSect && pSect->IsInFtn() )
pSect = pSect->GetUpper()->FindSctFrm();
OSL_ENSURE( pSect, "Escaping footnote" );
if( pSect != pMySect )
return sal_False;
}
}
SWRECTFN( this )
SWRECTFNX( pNewUpper )
if( Abs( (pNewUpper->Prt().*fnRectX->fnGetWidth)() -
(GetUpper()->Prt().*fnRect->fnGetWidth)() ) > 1 ) {
// In this case, only a _WouldFit with test move is possible
nMoveAnyway = 2;
}
// OD 2004-05-26 #i25904# - do *not* move backward,
// if <nMoveAnyway> equals 3 and no space is left in new upper.
nMoveAnyway |= BwdMoveNecessary( pOldPage, Frm() );
{
const IDocumentSettingAccess* pIDSA = pNewPage->GetFmt()->getIDocumentSettingAccess();
SwTwips nSpace = 0;
SwRect aRect( pNewUpper->Prt() );
aRect.Pos() += pNewUpper->Frm().Pos();
const SwFrm *pPrevFrm = pNewUpper->Lower();
while ( pPrevFrm )
{
SwTwips nNewTop = (pPrevFrm->Frm().*fnRectX->fnGetBottom)();
// OD 2004-03-01 #106629#:
// consider lower spacing of last frame in a table cell
{
// check, if last frame is inside table and if it includes
// its lower spacing.
if ( !pPrevFrm->GetNext() && pPrevFrm->IsInTab() &&
pIDSA->get(IDocumentSettingAccess::ADD_PARA_SPACING_TO_TABLE_CELLS) )
{
const SwFrm* pLastFrm = pPrevFrm;
// if last frame is a section, take its last content
if ( pPrevFrm->IsSctFrm() )
{
pLastFrm = static_cast<const SwSectionFrm*>(pPrevFrm)->FindLastCntnt();
if ( pLastFrm &&
pLastFrm->FindTabFrm() != pPrevFrm->FindTabFrm() )
{
pLastFrm = pLastFrm->FindTabFrm();
}
}
if ( pLastFrm )
{
SwBorderAttrAccess aAccess( SwFrm::GetCache(), pLastFrm );
const SwBorderAttrs& rAttrs = *aAccess.Get();
nNewTop -= rAttrs.GetULSpace().GetLower();
}
}
}
(aRect.*fnRectX->fnSetTop)( nNewTop );
pPrevFrm = pPrevFrm->GetNext();
}
nMoveAnyway |= BwdMoveNecessary( pNewPage, aRect);
//determine space left in new upper frame
nSpace = (aRect.*fnRectX->fnGetHeight)();
const ViewShell *pSh = pNewUpper->getRootFrm()->GetCurrShell();
if ( IsInFtn() ||
(pSh && pSh->GetViewOptions()->getBrowseMode()) ||
pNewUpper->IsCellFrm() ||
( pNewUpper->IsInSct() && ( pNewUpper->IsSctFrm() ||
( pNewUpper->IsColBodyFrm() &&
!pNewUpper->GetUpper()->GetPrev() &&
!pNewUpper->GetUpper()->GetNext() ) ) ) )
nSpace += pNewUpper->Grow( LONG_MAX, sal_True );
if ( nMoveAnyway < 3 )
{
if ( nSpace )
{
// Do not notify footnotes which are stuck to the paragraph:
// This would require extremely confusing code, taking into
// account the widths
// and Flys, that in turn influence the footnotes, ...
// _WouldFit can only be used if the width is the same and
// ONLY self-anchored Flys are present.
// _WouldFit can also be used if ONLY Flys anchored
// somewhere else are present.
// In this case, the width doesn't even matter,
// because we're running a TestFormat in the new upper.
const sal_uInt8 nBwdMoveNecessaryResult =
BwdMoveNecessary( pNewPage, aRect);
const bool bObjsInNewUpper( nBwdMoveNecessaryResult == 2 ||
nBwdMoveNecessaryResult == 3 );
return _WouldFit( nSpace, pNewUpper, nMoveAnyway == 2,
bObjsInNewUpper );
}
// It's impossible for _WouldFit to return a usable result if
// we have a fresh multi-column section - so we really have to
// float back
else if( pNewUpper->IsInSct() && pNewUpper->IsColBodyFrm() &&
!(pNewUpper->Prt().*fnRectX->fnGetWidth)() &&
( pNewUpper->GetUpper()->GetPrev() ||
pNewUpper->GetUpper()->GetNext() ) )
return sal_True;
else
return sal_False; // No space. No sense in floating back
}
else
{
// OD 2004-05-26 #i25904# - check for space left in new upper
if ( nSpace )
return sal_True;
else
return sal_False;
}
}
}
return sal_False;
}
//------------------------------------------------------------------------
// Calc methods
//------------------------------------------------------------------------
/*************************************************************************
|*
|* SwFrm::Prepare()
|*
|* Description: Prepares the Frm for "formatting" (MakeAll()).
|* This method serves to save stack space: To calculate the position
|* of the Frm we have to make sure that the positions of Upper and Prev
|* respectively are valid. This may require a recursive call (a loop
|* would be quite expensive, as it's not required very often).
|* Every call of MakeAll requires around 500 bytes on the stack - you
|* easily see where this leads. _Prepare requires only a little bit of
|* stack space, so the recursive call should not be a problem here.
|* Another advantage is that one nice day, _Prepare and with it
|* the formatting of predecessors could be avoided. Then it could
|* probably be possible to jump "quickly" to the document's end.
|*
|*************************************************************************/
// Two little friendships form a secret society
inline void PrepareLock( SwFlowFrm *pTab )
{
pTab->LockJoin();
}
inline void PrepareUnlock( SwFlowFrm *pTab )
{
pTab->UnlockJoin();
}
// hopefully, one day this function simply will return 'false'
static bool lcl_IsCalcUpperAllowed( const SwFrm& rFrm )
{
return !rFrm.GetUpper()->IsSctFrm() &&
!rFrm.GetUpper()->IsFooterFrm() &&
// #i23129#, #i36347# - no format of upper Writer fly frame
!rFrm.GetUpper()->IsFlyFrm() &&
!( rFrm.GetUpper()->IsTabFrm() && rFrm.GetUpper()->GetUpper()->IsInTab() ) &&
!( rFrm.IsTabFrm() && rFrm.GetUpper()->IsInTab() );
}
void SwFrm::PrepareMake()
{
StackHack aHack;
if ( GetUpper() )
{
if ( lcl_IsCalcUpperAllowed( *this ) )
GetUpper()->Calc();
OSL_ENSURE( GetUpper(), ":-( Layout unstable (Upper gone)." );
if ( !GetUpper() )
return;
const bool bCnt = IsCntntFrm();
const bool bTab = IsTabFrm();
sal_Bool bNoSect = IsInSct();
sal_Bool bOldTabLock = sal_False, bFoll = sal_False;
SwFlowFrm* pThis = bCnt ? (SwCntntFrm*)this : NULL;
if ( bTab )
{
pThis = (SwTabFrm*)this;
bOldTabLock = ((SwTabFrm*)this)->IsJoinLocked();
::PrepareLock( (SwTabFrm*)this );
bFoll = pThis->IsFollow();
}
else if( IsSctFrm() )
{
pThis = (SwSectionFrm*)this;
bFoll = pThis->IsFollow();
bNoSect = sal_False;
}
else if ( bCnt && sal_True == (bFoll = pThis->IsFollow()) &&
GetPrev() )
{
//Do not follow the chain when we need only one instance
const SwTxtFrm* pMaster = ((SwCntntFrm*)this)->FindMaster();
if ( pMaster && pMaster->IsLocked() )
{
MakeAll();
return;
}
}
// #i44049# - no format of previous frame, if current
// frame is a table frame and its previous frame wants to keep with it.
const bool bFormatPrev = !bTab ||
!GetPrev() ||
!GetPrev()->GetAttrSet()->GetKeep().GetValue();
if ( bFormatPrev )
{
SwFrm *pFrm = GetUpper()->Lower();
while ( pFrm != this )
{
OSL_ENSURE( pFrm, ":-( Layout unstable (this not found)." );
if ( !pFrm )
return; //Oioioioi ...
if ( !pFrm->IsValid() )
{
// A small interference that hopefully improves on the stability:
// If I'm Follow AND neighbor of a Frm before me, it would delete
// me when formatting. This as you can see could easily become a
// confusing situation that we want to avoid.
if ( bFoll && pFrm->IsFlowFrm() &&
(SwFlowFrm::CastFlowFrm(pFrm))->IsAnFollow( pThis ) )
break;
//MA: 24. Mar. 94, Calc would run into a _Prepare again and cause the whole chain to
// be run again.
// pFrm->Calc();
pFrm->MakeAll();
if( IsSctFrm() && !((SwSectionFrm*)this)->GetSection() )
break;
}
// With CntntFrms, the chain may be broken while walking through
// it. Therefore we have to figure out the follower in a bit more
// complicated way. However, I'll HAVE to get back to myself
// sometime again.
pFrm = pFrm->FindNext();
// If we started out in a SectionFrm, it might have happened that
// we landed in a Section Follow via the MakeAll calls.
// FindNext only gives us the SectionFrm, not it's content - we
// won't find ourselves anymore!
if( bNoSect && pFrm && pFrm->IsSctFrm() )
{
SwFrm* pCnt = ((SwSectionFrm*)pFrm)->ContainsAny();
if( pCnt )
pFrm = pCnt;
}
}
OSL_ENSURE( GetUpper(), "Layout unstable (Upper gone II)." );
if ( !GetUpper() )
return;
if ( lcl_IsCalcUpperAllowed( *this ) )
GetUpper()->Calc();
OSL_ENSURE( GetUpper(), "Layout unstable (Upper gone III)." );
}
if ( bTab && !bOldTabLock )
::PrepareUnlock( (SwTabFrm*)this );
}
MakeAll();
}
void SwFrm::OptPrepareMake()
{
// #i23129#, #i36347# - no format of upper Writer fly frame
if ( GetUpper() && !GetUpper()->IsFooterFrm() &&
!GetUpper()->IsFlyFrm() )
{
GetUpper()->Calc();
OSL_ENSURE( GetUpper(), ":-( Layout unstable (Upper gone)." );
if ( !GetUpper() )
return;
}
if ( GetPrev() && !GetPrev()->IsValid() )
PrepareMake();
else
{
StackHack aHack;
MakeAll();
}
}
void SwFrm::PrepareCrsr()
{
StackHack aHack;
if( GetUpper() && !GetUpper()->IsSctFrm() )
{
GetUpper()->PrepareCrsr();
GetUpper()->Calc();
OSL_ENSURE( GetUpper(), ":-( Layout unstable (Upper gone)." );
if ( !GetUpper() )
return;
const bool bCnt = IsCntntFrm();
const bool bTab = IsTabFrm();
sal_Bool bNoSect = IsInSct();
sal_Bool bOldTabLock = sal_False, bFoll;
SwFlowFrm* pThis = bCnt ? (SwCntntFrm*)this : NULL;
if ( bTab )
{
bOldTabLock = ((SwTabFrm*)this)->IsJoinLocked();
::PrepareLock( (SwTabFrm*)this );
pThis = (SwTabFrm*)this;
}
else if( IsSctFrm() )
{
pThis = (SwSectionFrm*)this;
bNoSect = sal_False;
}
bFoll = pThis && pThis->IsFollow();
SwFrm *pFrm = GetUpper()->Lower();
while ( pFrm != this )
{
OSL_ENSURE( pFrm, ":-( Layout unstable (this not found)." );
if ( !pFrm )
return; //Oioioioi ...
if ( !pFrm->IsValid() )
{
// A small interference that hopefully improves on the stability:
// If I'm Follow AND neighbor of a Frm before me, it would delete
// me when formatting. This as you can see could easily become a
// confusing situation that we want to avoid.
if ( bFoll && pFrm->IsFlowFrm() &&
(SwFlowFrm::CastFlowFrm(pFrm))->IsAnFollow( pThis ) )
break;
pFrm->MakeAll();
}
// With CntntFrms, the chain may be broken while walking through
// it. Therefore we have to figure out the follower in a bit more
// complicated way. However, I'll HAVE to get back to myself
// sometime again.
pFrm = pFrm->FindNext();
if( bNoSect && pFrm && pFrm->IsSctFrm() )
{
SwFrm* pCnt = ((SwSectionFrm*)pFrm)->ContainsAny();
if( pCnt )
pFrm = pCnt;
}
}
OSL_ENSURE( GetUpper(), "Layout unstable (Upper gone II)." );
if ( !GetUpper() )
return;
GetUpper()->Calc();
OSL_ENSURE( GetUpper(), "Layout unstable (Upper gone III)." );
if ( bTab && !bOldTabLock )
::PrepareUnlock( (SwTabFrm*)this );
}
Calc();
}
/*************************************************************************
|*
|* SwFrm::MakePos()
|*
|*************************************************************************/
// Here we return GetPrev(); however we will ignore empty SectionFrms
static SwFrm* lcl_Prev( SwFrm* pFrm, bool bSectPrv = true )
{
SwFrm* pRet = pFrm->GetPrev();
if( !pRet && pFrm->GetUpper() && pFrm->GetUpper()->IsSctFrm() &&
bSectPrv && !pFrm->IsColumnFrm() )
pRet = pFrm->GetUpper()->GetPrev();
while( pRet && pRet->IsSctFrm() &&
!((SwSectionFrm*)pRet)->GetSection() )
pRet = pRet->GetPrev();
return pRet;
}
static SwFrm* lcl_NotHiddenPrev( SwFrm* pFrm )
{
SwFrm *pRet = pFrm;
do
{
pRet = lcl_Prev( pRet );
} while ( pRet && pRet->IsTxtFrm() && ((SwTxtFrm*)pRet)->IsHiddenNow() );
return pRet;
}
void SwFrm::MakePos()
{
if ( !mbValidPos )
{
mbValidPos = sal_True;
bool bUseUpper = false;
SwFrm* pPrv = lcl_Prev( this );
if ( pPrv &&
( !pPrv->IsCntntFrm() ||
( ((SwCntntFrm*)pPrv)->GetFollow() != this ) )
)
{
if ( !StackHack::IsLocked() &&
( !IsInSct() || IsSctFrm() ) &&
!pPrv->IsSctFrm() &&
!pPrv->GetAttrSet()->GetKeep().GetValue()
)
{
pPrv->Calc(); // This may cause Prev to vanish!
}
else if ( pPrv->Frm().Top() == 0 )
{
bUseUpper = true;
}
}
pPrv = lcl_Prev( this, false );
sal_uInt16 nMyType = GetType();
SWRECTFN( ( IsCellFrm() && GetUpper() ? GetUpper() : this ) )
if ( !bUseUpper && pPrv )
{
maFrm.Pos( pPrv->Frm().Pos() );
if( FRM_NEIGHBOUR & nMyType )
{
sal_Bool bR2L = IsRightToLeft();
if( bR2L )
(maFrm.*fnRect->fnSetPosX)( (maFrm.*fnRect->fnGetLeft)() -
(maFrm.*fnRect->fnGetWidth)() );
else
(maFrm.*fnRect->fnSetPosX)( (maFrm.*fnRect->fnGetLeft)() +
(pPrv->Frm().*fnRect->fnGetWidth)() );
// cells may now leave their uppers
if( bVert && FRM_CELL & nMyType && !mbReverse )
maFrm.Pos().X() -= maFrm.Width() -pPrv->Frm().Width();
}
else if( bVert && FRM_NOTE_VERT & nMyType )
{
if( mbReverse )
maFrm.Pos().X() += pPrv->Frm().Width();
else
//Badaa: 2008-04-18 * Support for Classical Mongolian Script (SCMS) joint with Jiayanmin
{
if ( bVertL2R )
maFrm.Pos().X() += pPrv->Frm().Width();
else
maFrm.Pos().X() -= maFrm.Width();
}
}
else
maFrm.Pos().Y() += pPrv->Frm().Height();
}
else if ( GetUpper() )
{
// OD 15.10.2002 #103517# - add safeguard for <SwFooterFrm::Calc()>
// If parent frame is a footer frame and its <ColLocked()>, then
// do *not* calculate it.
// NOTE: Footer frame is <ColLocked()> during its
// <FormatSize(..)>, which is called from <Format(..)>, which
// is called from <MakeAll()>, which is called from <Calc()>.
// #i56850#
// - no format of upper Writer fly frame, which is anchored
// at-paragraph or at-character.
if ( !GetUpper()->IsTabFrm() &&
!( IsTabFrm() && GetUpper()->IsInTab() ) &&
!GetUpper()->IsSctFrm() &&
!dynamic_cast<SwFlyAtCntFrm*>(GetUpper()) &&
!( GetUpper()->IsFooterFrm() &&
GetUpper()->IsColLocked() )
)
{
GetUpper()->Calc();
}
pPrv = lcl_Prev( this, false );
if ( !bUseUpper && pPrv )
{
maFrm.Pos( pPrv->Frm().Pos() );
if( FRM_NEIGHBOUR & nMyType )
{
sal_Bool bR2L = IsRightToLeft();
if( bR2L )
(maFrm.*fnRect->fnSetPosX)( (maFrm.*fnRect->fnGetLeft)() -
(maFrm.*fnRect->fnGetWidth)() );
else
(maFrm.*fnRect->fnSetPosX)( (maFrm.*fnRect->fnGetLeft)() +
(pPrv->Frm().*fnRect->fnGetWidth)() );
// cells may now leave their uppers
if( bVert && FRM_CELL & nMyType && !mbReverse )
maFrm.Pos().X() -= maFrm.Width() -pPrv->Frm().Width();
}
else if( bVert && FRM_NOTE_VERT & nMyType )
{
if( mbReverse )
maFrm.Pos().X() += pPrv->Frm().Width();
else
maFrm.Pos().X() -= maFrm.Width();
}
else
maFrm.Pos().Y() += pPrv->Frm().Height();
}
else
{
maFrm.Pos( GetUpper()->Frm().Pos() );
maFrm.Pos() += GetUpper()->Prt().Pos();
if( FRM_NEIGHBOUR & nMyType && IsRightToLeft() )
{
if( bVert )
maFrm.Pos().Y() += GetUpper()->Prt().Height()
- maFrm.Height();
else
maFrm.Pos().X() += GetUpper()->Prt().Width()
- maFrm.Width();
}
//Badaa: 2008-04-18 * Support for Classical Mongolian Script (SCMS) joint with Jiayanmin
else if( bVert && !bVertL2R && FRM_NOTE_VERT & nMyType && !mbReverse )
maFrm.Pos().X() -= maFrm.Width() - GetUpper()->Prt().Width();
}
}
else
maFrm.Pos().X() = maFrm.Pos().Y() = 0;
//Badaa: 2008-04-18 * Support for Classical Mongolian Script (SCMS) joint with Jiayanmin
if( IsBodyFrm() && bVert && !bVertL2R && !mbReverse && GetUpper() )
maFrm.Pos().X() += GetUpper()->Prt().Width() - maFrm.Width();
mbValidPos = sal_True;
}
}
/*************************************************************************
|*
|* SwPageFrm::MakeAll()
|*
|*************************************************************************/
// #i28701# - new type <SwSortedObjs>
static void lcl_CheckObjects( SwSortedObjs* pSortedObjs, SwFrm* pFrm, long& rBot )
{
// And then there can be paragraph anchored frames that sit below their paragraph.
long nMax = 0;
for ( sal_uInt16 i = 0; i < pSortedObjs->Count(); ++i )
{
// #i28701# - consider changed type of <SwSortedObjs>
// entries.
SwAnchoredObject* pObj = (*pSortedObjs)[i];
long nTmp = 0;
if ( pObj->ISA(SwFlyFrm) )
{
SwFlyFrm *pFly = static_cast<SwFlyFrm*>(pObj);
if( pFly->Frm().Top() != FAR_AWAY &&
( pFrm->IsPageFrm() ? pFly->IsFlyLayFrm() :
( pFly->IsFlyAtCntFrm() &&
( pFrm->IsBodyFrm() ? pFly->GetAnchorFrm()->IsInDocBody() :
pFly->GetAnchorFrm()->IsInFtn() ) ) ) )
{
nTmp = pFly->Frm().Bottom();
}
}
else
nTmp = pObj->GetObjRect().Bottom();
nMax = Max( nTmp, nMax );
}
++nMax; // Lower edge vs. height!
rBot = Max( rBot, nMax );
}
void SwPageFrm::MakeAll()
{
PROTOCOL_ENTER( this, PROT_MAKEALL, 0, 0 )
const SwRect aOldRect( Frm() ); // Adjust root size
const SwLayNotify aNotify( this ); // takes care of the notification in the dtor
SwBorderAttrAccess *pAccess = 0;
const SwBorderAttrs*pAttrs = 0;
while ( !mbValidPos || !mbValidSize || !mbValidPrtArea )
{
if ( !mbValidPos )
{
// PAGES01
mbValidPos = sal_True; // positioning of the pages is taken care of by the root frame
}
if ( !mbValidSize || !mbValidPrtArea )
{
if ( IsEmptyPage() )
{
Frm().Width( 0 ); Prt().Width( 0 );
Frm().Height( 0 ); Prt().Height( 0 );
Prt().Left( 0 ); Prt().Top( 0 );
mbValidSize = mbValidPrtArea = sal_True;
}
else
{
if ( !pAccess )
{
pAccess = new SwBorderAttrAccess( SwFrm::GetCache(), this );
pAttrs = pAccess->Get();
}
// In BrowseView, we use fixed settings
ViewShell *pSh = getRootFrm()->GetCurrShell();
if ( pSh && pSh->GetViewOptions()->getBrowseMode() )
{
const Size aBorder = pSh->GetOut()->PixelToLogic( pSh->GetBrowseBorder() );
const long nTop = pAttrs->CalcTopLine() + aBorder.Height();
const long nBottom = pAttrs->CalcBottomLine()+ aBorder.Height();
long nWidth = GetUpper() ? ((SwRootFrm*)GetUpper())->GetBrowseWidth() : 0;
if ( nWidth < pSh->GetBrowseWidth() )
nWidth = pSh->GetBrowseWidth();
nWidth += + 2 * aBorder.Width();
nWidth = Max( nWidth, 2L * aBorder.Width() + 4L*MM50 );
Frm().Width( nWidth );
SwLayoutFrm *pBody = FindBodyCont();
if ( pBody && pBody->Lower() && pBody->Lower()->IsColumnFrm() )
{
// Columns have a fixed height
Frm().Height( pAttrs->GetSize().Height() );
}
else
{
// In pages without columns, the content defines the size.
long nBot = Frm().Top() + nTop;
SwFrm *pFrm = Lower();
while ( pFrm )
{
long nTmp = 0;
SwFrm *pCnt = ((SwLayoutFrm*)pFrm)->ContainsAny();
while ( pCnt && (pCnt->GetUpper() == pFrm ||
((SwLayoutFrm*)pFrm)->IsAnLower( pCnt )))
{
nTmp += pCnt->Frm().Height();
if( pCnt->IsTxtFrm() &&
((SwTxtFrm*)pCnt)->IsUndersized() )
nTmp += ((SwTxtFrm*)pCnt)->GetParHeight()
- pCnt->Prt().Height();
else if( pCnt->IsSctFrm() &&
((SwSectionFrm*)pCnt)->IsUndersized() )
nTmp += ((SwSectionFrm*)pCnt)->Undersize();
pCnt = pCnt->FindNext();
}
// OD 29.10.2002 #97265# - consider invalid body frame properties
if ( pFrm->IsBodyFrm() &&
( !pFrm->GetValidSizeFlag() ||
!pFrm->GetValidPrtAreaFlag() ) &&
( pFrm->Frm().Height() < pFrm->Prt().Height() )
)
{
nTmp = Min( nTmp, pFrm->Frm().Height() );
}
else
{
// OD 30.10.2002 #97265# - assert invalid lower property
OSL_ENSURE( !(pFrm->Frm().Height() < pFrm->Prt().Height()),
"SwPageFrm::MakeAll(): Lower with frame height < printing height" );
nTmp += pFrm->Frm().Height() - pFrm->Prt().Height();
}
if ( !pFrm->IsBodyFrm() )
nTmp = Min( nTmp, pFrm->Frm().Height() );
nBot += nTmp;
// Here we check whether paragraph anchored objects
// protrude outside the Body/FtnCont.
if( pSortedObjs && !pFrm->IsHeaderFrm() &&
!pFrm->IsFooterFrm() )
lcl_CheckObjects( pSortedObjs, pFrm, nBot );
pFrm = pFrm->GetNext();
}
nBot += nBottom;
// And the page anchored ones
if ( pSortedObjs )
lcl_CheckObjects( pSortedObjs, this, nBot );
nBot -= Frm().Top();
// #i35143# - If second page frame
// exists, the first page doesn't have to fulfill the
// visible area.
if ( !GetPrev() && !GetNext() )
{
nBot = Max( nBot, pSh->VisArea().Height() );
}
// #i35143# - Assure, that the page
// doesn't exceed the defined browse height.
Frm().Height( Min( nBot, BROWSE_HEIGHT ) );
}
Prt().Left ( pAttrs->CalcLeftLine() + aBorder.Width() );
Prt().Top ( nTop );
Prt().Width( Frm().Width() - ( Prt().Left()
+ pAttrs->CalcRightLine() + aBorder.Width() ) );
Prt().Height( Frm().Height() - (nTop + nBottom) );
mbValidSize = mbValidPrtArea = sal_True;
}
else
{ // Set FixSize. For pages, this is not done from Upper, but from
// the attribute.
Frm().SSize( pAttrs->GetSize() );
Format( pAttrs );
}
}
}
} //while ( !mbValidPos || !mbValidSize || !mbValidPrtArea )
delete pAccess;
// PAGES01
if ( Frm() != aOldRect && GetUpper() )
static_cast<SwRootFrm*>(GetUpper())->CheckViewLayout( 0, 0 );
OSL_ENSURE( !GetUpper() || GetUpper()->Prt().Width() >= maFrm.Width(),
"Upper (Root) must be wide enough to contain the widest page");
}
/*************************************************************************
|*
|* SwLayoutFrm::MakeAll()
|*
|*************************************************************************/
void SwLayoutFrm::MakeAll()
{
PROTOCOL_ENTER( this, PROT_MAKEALL, 0, 0 )
// takes care of the notification in the dtor
const SwLayNotify aNotify( this );
sal_Bool bVert = IsVertical();
//Badaa: 2008-04-18 * Support for Classical Mongolian Script (SCMS) joint with Jiayanmin
SwRectFn fnRect = ( IsNeighbourFrm() == bVert )? fnRectHori : ( IsVertLR() ? fnRectVertL2R : fnRectVert );
SwBorderAttrAccess *pAccess = 0;
const SwBorderAttrs*pAttrs = 0;
while ( !mbValidPos || !mbValidSize || !mbValidPrtArea )
{
if ( !mbValidPos )
MakePos();
if ( GetUpper() )
{
// NEW TABLES
if ( IsLeaveUpperAllowed() )
{
if ( !mbValidSize )
mbValidPrtArea = sal_False;
}
else
{
if ( !mbValidSize )
{
// Set FixSize; VarSize is set by Format() after calculating the PrtArea
mbValidPrtArea = sal_False;
SwTwips nPrtWidth = (GetUpper()->Prt().*fnRect->fnGetWidth)();
if( bVert && ( IsBodyFrm() || IsFtnContFrm() ) )
{
SwFrm* pNxt = GetPrev();
while( pNxt && !pNxt->IsHeaderFrm() )
pNxt = pNxt->GetPrev();
if( pNxt )
nPrtWidth -= pNxt->Frm().Height();
pNxt = GetNext();
while( pNxt && !pNxt->IsFooterFrm() )
pNxt = pNxt->GetNext();
if( pNxt )
nPrtWidth -= pNxt->Frm().Height();
}
const long nDiff = nPrtWidth - (Frm().*fnRect->fnGetWidth)();
if( IsNeighbourFrm() && IsRightToLeft() )
(Frm().*fnRect->fnSubLeft)( nDiff );
else
(Frm().*fnRect->fnAddRight)( nDiff );
}
else
{
// Don't leave your upper
const SwTwips nDeadLine = (GetUpper()->*fnRect->fnGetPrtBottom)();
if( (Frm().*fnRect->fnOverStep)( nDeadLine ) )
mbValidSize = sal_False;
}
}
}
if ( !mbValidSize || !mbValidPrtArea )
{
if ( !pAccess )
{
pAccess = new SwBorderAttrAccess( SwFrm::GetCache(), this );
pAttrs = pAccess->Get();
}
Format( pAttrs );
}
} //while ( !mbValidPos || !mbValidSize || !mbValidPrtArea )
delete pAccess;
}
/*************************************************************************
|*
|* SwCntntFrm::MakePrtArea()
|*
|*************************************************************************/
bool SwTxtNode::IsCollapse() const
{
if (GetDoc()->get( IDocumentSettingAccess::COLLAPSE_EMPTY_CELL_PARA )
&& GetTxt().isEmpty())
{
sal_uLong nIdx=GetIndex();
const SwEndNode *pNdBefore=GetNodes()[nIdx-1]->GetEndNode();
const SwEndNode *pNdAfter=GetNodes()[nIdx+1]->GetEndNode();
// The paragraph is collapsed only if the NdAfter is the end of a cell
bool bInTable = this->FindTableNode( ) != NULL;
SwSortedObjs* pObjs = this->getLayoutFrm( GetDoc()->GetCurrentLayout() )->GetDrawObjs( );
sal_uInt32 nObjs = ( pObjs != NULL ) ? pObjs->Count( ) : 0;
if ( pNdBefore!=NULL && pNdAfter!=NULL && nObjs == 0 && bInTable ) {
return true;
} else {
return false;
}
} else
return false;
}
bool SwFrm::IsCollapse() const
{
if (IsTxtFrm()) {
const SwTxtFrm *pTxtFrm=(SwTxtFrm*)this;
const SwTxtNode *pTxtNode=pTxtFrm->GetTxtNode();
if (pTxtNode && pTxtNode->IsCollapse()) {
return true;
} else {
return false;
}
} else {
return false;
}
}
sal_Bool SwCntntFrm::MakePrtArea( const SwBorderAttrs &rAttrs )
{
sal_Bool bSizeChgd = sal_False;
if ( !mbValidPrtArea )
{
mbValidPrtArea = sal_True;
SWRECTFN( this )
const bool bTxtFrm = IsTxtFrm();
SwTwips nUpper = 0;
if ( bTxtFrm && ((SwTxtFrm*)this)->IsHiddenNow() )
{
if ( ((SwTxtFrm*)this)->HasFollow() )
((SwTxtFrm*)this)->JoinFrm();
if( (Prt().*fnRect->fnGetHeight)() )
((SwTxtFrm*)this)->HideHidden();
Prt().Pos().X() = Prt().Pos().Y() = 0;
(Prt().*fnRect->fnSetWidth)( (Frm().*fnRect->fnGetWidth)() );
(Prt().*fnRect->fnSetHeight)( 0 );
nUpper = -( (Frm().*fnRect->fnGetHeight)() );
}
else
{
// Simplification: CntntFrms are always variable in height!
// At the FixSize, the surrounding Frame enforces the size;
// the borders are simply subtracted.
const long nLeft = rAttrs.CalcLeft( this );
const long nRight = ((SwBorderAttrs&)rAttrs).CalcRight( this );
(this->*fnRect->fnSetXMargins)( nLeft, nRight );
ViewShell *pSh = getRootFrm()->GetCurrShell();
SwTwips nWidthArea;
if( pSh && 0!=(nWidthArea=(pSh->VisArea().*fnRect->fnGetWidth)()) &&
GetUpper()->IsPageBodyFrm() && // but not for BodyFrms in Columns
pSh->GetViewOptions()->getBrowseMode() )
{
// Do not protrude the edge of the visible area. The page may be
// wider, because there may be objects with excess width
// (RootFrm::ImplCalcBrowseWidth())
long nMinWidth = 0;
for (sal_uInt16 i = 0; GetDrawObjs() && i < GetDrawObjs()->Count();++i)
{
// #i28701# - consider changed type of
// <SwSortedObjs> entries
SwAnchoredObject* pObj = (*GetDrawObjs())[i];
const SwFrmFmt& rFmt = pObj->GetFrmFmt();
const sal_Bool bFly = pObj->ISA(SwFlyFrm);
if ((bFly && (FAR_AWAY == pObj->GetObjRect().Width()))
|| rFmt.GetFrmSize().GetWidthPercent())
{
continue;
}
if ( FLY_AS_CHAR == rFmt.GetAnchor().GetAnchorId() )
{
nMinWidth = Max( nMinWidth,
bFly ? rFmt.GetFrmSize().GetWidth()
: pObj->GetObjRect().Width() );
}
}
const Size aBorder = pSh->GetOut()->PixelToLogic( pSh->GetBrowseBorder() );
long nWidth = nWidthArea - 2 * ( IsVertical() ? aBorder.Height() : aBorder.Width() );
nWidth -= (Prt().*fnRect->fnGetLeft)();
nWidth -= rAttrs.CalcRightLine();
nWidth = Max( nMinWidth, nWidth );
(Prt().*fnRect->fnSetWidth)( Min( nWidth,
(Prt().*fnRect->fnGetWidth)() ) );
}
if ( (Prt().*fnRect->fnGetWidth)() <= MINLAY )
{
// The PrtArea should already be at least MINLAY wide, matching the
// minimal values of the UI
(Prt().*fnRect->fnSetWidth)( Min( long(MINLAY),
(Frm().*fnRect->fnGetWidth)() ) );
SwTwips nTmp = (Frm().*fnRect->fnGetWidth)() -
(Prt().*fnRect->fnGetWidth)();
if( (Prt().*fnRect->fnGetLeft)() > nTmp )
(Prt().*fnRect->fnSetLeft)( nTmp );
}
// The following rules apply for VarSize:
// 1. The first entry of a chain has no top border
// 2. There is never a bottom border
// 3. The top border is the maximum of the distance
// of Prev downwards and our own distance upwards
// Those three rules apply when calculating spacings
// that are given by UL- and LRSpace. There might be a spacing
// in all directions however; this may be caused by borders
// and / or shadows.
// 4. The spacing for TextFrms corresponds to the interline lead,
// at a minimum.
nUpper = CalcUpperSpace( &rAttrs, NULL );
SwTwips nLower = CalcLowerSpace( &rAttrs );
if (IsCollapse()) {
nUpper=0;
nLower=0;
}
(Prt().*fnRect->fnSetPosY)( (!bVert || mbReverse) ? nUpper : nLower);
nUpper += nLower;
nUpper -= (Frm().*fnRect->fnGetHeight)() -
(Prt().*fnRect->fnGetHeight)();
}
// If there's a difference between old and new size, call Grow() or
// Shrink() respectively.
if ( nUpper )
{
if ( nUpper > 0 )
GrowFrm( nUpper );
else
ShrinkFrm( -nUpper );
bSizeChgd = sal_True;
}
}
return bSizeChgd;
}
/*************************************************************************
|*
|* SwCntntFrm::MakeAll()
|*
|*************************************************************************/
#define STOP_FLY_FORMAT 10
// - loop prevention
const int cnStopFormat = 15;
inline void ValidateSz( SwFrm *pFrm )
{
if ( pFrm )
{
pFrm->mbValidSize = sal_True;
pFrm->mbValidPrtArea = sal_True;
}
}
void SwCntntFrm::MakeAll()
{
OSL_ENSURE( GetUpper(), "no Upper?" );
OSL_ENSURE( IsTxtFrm(), "MakeAll(), NoTxt" );
if ( !IsFollow() && StackHack::IsLocked() )
return;
if ( IsJoinLocked() )
return;
OSL_ENSURE( !((SwTxtFrm*)this)->IsSwapped(), "Calculation of a swapped frame" );
StackHack aHack;
if ( ((SwTxtFrm*)this)->IsLocked() )
{
OSL_FAIL( "Format for locked TxtFrm." );
return;
}
LockJoin();
long nFormatCount = 0;
// - loop prevention
int nConsequetiveFormatsWithoutChange = 0;
PROTOCOL_ENTER( this, PROT_MAKEALL, 0, 0 )
#ifdef DBG_UTIL
const SwDoc *pDoc = GetAttrSet()->GetDoc();
if( pDoc )
{
static bool bWarned = false;
if( pDoc->InXMLExport() )
{
SAL_WARN_IF( !bWarned, "sw", "Formatting during XML-export!" );
bWarned = true;
}
else
bWarned = false;
}
#endif
// takes care of the notification in the dtor
SwCntntNotify *pNotify = new SwCntntNotify( this );
// as long as bMakePage is true, a new page can be created (exactly once)
bool bMakePage = true;
// bMovedBwd gets set to true when the frame flows backwards
bool bMovedBwd = false;
// as long as bMovedFwd is false, the Frm may flow backwards (until
// it has been moved forward once)
bool bMovedFwd = false;
sal_Bool bFormatted = sal_False; // For the widow/orphan rules, we encourage the
// last CntntFrm of a chain to format. This only
// needs to happen once. Every time the Frm is
// moved, the flag will have to be reset.
bool bMustFit = false; // Once the emergency brake is pulled,
// no other prepares will be triggered
bool bFitPromise = false; // If a paragraph didn't fit, but promises
// with WouldFit that it would adjust accordingly,
// this flag is set. If it turns out that it
// didn't keep it's promise, we can act in a
// controlled fashion.
bool bMoveable;
const sal_Bool bFly = IsInFly();
const sal_Bool bTab = IsInTab();
const sal_Bool bFtn = IsInFtn();
const sal_Bool bSct = IsInSct();
Point aOldFrmPos; // This is so we can compare with the last pos
Point aOldPrtPos; // and determine whether it makes sense to Prepare
SwBorderAttrAccess aAccess( SwFrm::GetCache(), this );
const SwBorderAttrs &rAttrs = *aAccess.Get();
// OD 2004-02-26 #i25029#
if ( !IsFollow() && rAttrs.JoinedWithPrev( *(this) ) )
{
pNotify->SetBordersJoinedWithPrev();
}
const sal_Bool bKeep = IsKeep( rAttrs.GetAttrSet() );
SwSaveFtnHeight *pSaveFtn = 0;
if ( bFtn )
{
SwFtnFrm *pFtn = FindFtnFrm();
SwSectionFrm* pSct = pFtn->FindSctFrm();
if ( !((SwTxtFrm*)pFtn->GetRef())->IsLocked() )
{
SwFtnBossFrm* pBoss = pFtn->GetRef()->FindFtnBossFrm(
pFtn->GetAttr()->GetFtn().IsEndNote() );
if( !pSct || pSct->IsColLocked() || !pSct->Growable() )
pSaveFtn = new SwSaveFtnHeight( pBoss,
((SwTxtFrm*)pFtn->GetRef())->GetFtnLine( pFtn->GetAttr() ) );
}
}
//
if ( GetUpper()->IsSctFrm() &&
HasFollow() &&
GetFollow()->GetFrm() == GetNext() )
{
dynamic_cast<SwTxtFrm*>(this)->JoinFrm();
}
// #i28701# - move master forward, if it has to move,
// because of its object positioning.
if ( !static_cast<SwTxtFrm*>(this)->IsFollow() )
{
sal_uInt32 nToPageNum = 0L;
const bool bMoveFwdByObjPos = SwLayouter::FrmMovedFwdByObjPos(
*(GetAttrSet()->GetDoc()),
*(static_cast<SwTxtFrm*>(this)),
nToPageNum );
// #i58182#
// Also move a paragraph forward, which is the first one inside a table cell.
if ( bMoveFwdByObjPos &&
FindPageFrm()->GetPhyPageNum() < nToPageNum &&
( lcl_Prev( this ) ||
GetUpper()->IsCellFrm() ||
( GetUpper()->IsSctFrm() &&
GetUpper()->GetUpper()->IsCellFrm() ) ) &&
IsMoveable() )
{
bMovedFwd = true;
MoveFwd( bMakePage, sal_False );
}
}
// If a Follow sits next to it's Master and doesn't fit, we know it can
// be moved right now.
if ( lcl_Prev( this ) && ((SwTxtFrm*)this)->IsFollow() && IsMoveable() )
{
bMovedFwd = true;
// OD 2004-03-02 #106629# - If follow frame is in table, it's master
// will be the last in the current table cell. Thus, invalidate the
// printing area of the master,
if ( IsInTab() )
{
lcl_Prev( this )->InvalidatePrt();
}
MoveFwd( bMakePage, sal_False );
}
// OD 08.11.2002 #104840# - check footnote content for forward move.
// If a content of a footnote is on a prior page/column as its invalid
// reference, it can be moved forward.
if ( bFtn && !mbValidPos )
{
SwFtnFrm* pFtn = FindFtnFrm();
SwCntntFrm* pRefCnt = pFtn ? pFtn->GetRef() : 0;
if ( pRefCnt && !pRefCnt->IsValid() )
{
SwFtnBossFrm* pFtnBossOfFtn = pFtn->FindFtnBossFrm();
SwFtnBossFrm* pFtnBossOfRef = pRefCnt->FindFtnBossFrm();
//<loop of movefwd until condition held or no move>
if ( pFtnBossOfFtn && pFtnBossOfRef &&
pFtnBossOfFtn != pFtnBossOfRef &&
pFtnBossOfFtn->IsBefore( pFtnBossOfRef ) )
{
bMovedFwd = true;
MoveFwd( bMakePage, sal_False );
}
}
}
SWRECTFN( this )
while ( !mbValidPos || !mbValidSize || !mbValidPrtArea )
{
// - loop prevention
SwRect aOldFrm_StopFormat( Frm() );
SwRect aOldPrt_StopFormat( Prt() );
if ( (bMoveable = IsMoveable()) )
{
SwFrm *pPre = GetIndPrev();
if ( CheckMoveFwd( bMakePage, bKeep, bMovedBwd ) )
{
SWREFRESHFN( this )
bMovedFwd = true;
if ( bMovedBwd )
{
// While flowing back, the Upper was encouraged to
// completely re-paint itself. We can skip this now after
// flowing back and forth.
GetUpper()->ResetCompletePaint();
// The predecessor was invalidated, so this is obsolete as well now.
OSL_ENSURE( pPre, "missing old Prev" );
if( !pPre->IsSctFrm() )
::ValidateSz( pPre );
}
bMoveable = IsMoveable();
}
}
aOldFrmPos = (Frm().*fnRect->fnGetPos)();
aOldPrtPos = (Prt().*fnRect->fnGetPos)();
if ( !mbValidPos )
MakePos();
//Set FixSize. VarSize is being adjusted by Format().
if ( !mbValidSize )
{
// #125452#
// invalidate printing area flag, if the following conditions are hold:
// - current frame width is 0.
// - current printing area width is 0.
// - frame width is adjusted to a value greater than 0.
// - printing area flag is sal_True.
// Thus, it's assured that the printing area is adjusted, if the
// frame area width changes its width from 0 to something greater
// than 0.
// Note: A text frame can be in such a situation, if the format is
// triggered by method call <SwCrsrShell::SetCrsr()> after
// loading the document.
const SwTwips nNewFrmWidth = (GetUpper()->Prt().*fnRect->fnGetWidth)();
if ( mbValidPrtArea && nNewFrmWidth > 0 &&
(Frm().*fnRect->fnGetWidth)() == 0 &&
(Prt().*fnRect->fnGetWidth)() == 0 )
{
mbValidPrtArea = sal_False;
}
(Frm().*fnRect->fnSetWidth)( nNewFrmWidth );
}
if ( !mbValidPrtArea )
{
const long nOldW = (Prt().*fnRect->fnGetWidth)();
// #i34730# - keep current frame height
const SwTwips nOldH = (Frm().*fnRect->fnGetHeight)();
MakePrtArea( rAttrs );
if ( nOldW != (Prt().*fnRect->fnGetWidth)() )
Prepare( PREP_FIXSIZE_CHG );
// #i34730# - check, if frame height has changed.
// If yes, send a PREP_ADJUST_FRM and invalidate the size flag to
// force a format. The format will check in its method
// <SwTxtFrm::CalcPreps()>, if the already formatted lines still
// fit and if not, performs necessary actions.
// #i40150# - no check, if frame is undersized.
if ( mbValidSize && !IsUndersized() &&
nOldH != (Frm().*fnRect->fnGetHeight)() )
{
// #115759# - no PREP_ADJUST_FRM and size
// invalidation, if height decreases only by the additional
// lower space as last content of a table cell and an existing
// follow containing one line exists.
const SwTwips nHDiff = nOldH - (Frm().*fnRect->fnGetHeight)();
const bool bNoPrepAdjustFrm =
nHDiff > 0 && IsInTab() && GetFollow() &&
( 1 == static_cast<SwTxtFrm*>(GetFollow())->GetLineCount( STRING_LEN ) || (static_cast<SwTxtFrm*>(GetFollow())->Frm().*fnRect->fnGetWidth)() < 0 ) &&
GetFollow()->CalcAddLowerSpaceAsLastInTableCell() == nHDiff;
if ( !bNoPrepAdjustFrm )
{
Prepare( PREP_ADJUST_FRM );
mbValidSize = sal_False;
}
}
}
// To make the widow and orphan rules work, we need to notify the CntntFrm.
// Criteria:
// - It needs to be movable (otherwise, splitting doesn't make sense)
// - It needs to overlap with the lower edge of the PrtArea of the Upper
if ( !bMustFit )
{
sal_Bool bWidow = sal_True;
const SwTwips nDeadLine = (GetUpper()->*fnRect->fnGetPrtBottom)();
if ( bMoveable && !bFormatted && ( GetFollow() ||
( (Frm().*fnRect->fnOverStep)( nDeadLine ) ) ) )
{
Prepare( PREP_WIDOWS_ORPHANS, 0, sal_False );
mbValidSize = bWidow = sal_False;
}
if( (Frm().*fnRect->fnGetPos)() != aOldFrmPos ||
(Prt().*fnRect->fnGetPos)() != aOldPrtPos )
{
// In this Prepare, an _InvalidateSize() might happen.
// mbValidSize becomes sal_False and Format() gets called.
Prepare( PREP_POS_CHGD, (const void*)&bFormatted, sal_False );
if ( bWidow && GetFollow() )
{ Prepare( PREP_WIDOWS_ORPHANS, 0, sal_False );
mbValidSize = sal_False;
}
}
}
if ( !mbValidSize )
{
mbValidSize = bFormatted = sal_True;
++nFormatCount;
if( nFormatCount > STOP_FLY_FORMAT )
SetFlyLock( sal_True );
// - loop prevention
// No format any longer, if <cnStopFormat> consequetive formats
// without change occur.
if ( nConsequetiveFormatsWithoutChange <= cnStopFormat )
{
Format();
}
#if OSL_DEBUG_LEVEL > 0
else
{
OSL_FAIL( "debug assertion: <SwCntntFrm::MakeAll()> - format of text frame suppressed by fix b6448963" );
}
#endif
}
// If this is the first one in a chain, check if this can flow
// backwards (if this is movable at all).
// To prevent oscillations/loops, check that this has not just
// flowed forwards.
sal_Bool bDummy;
if ( !lcl_Prev( this ) &&
!bMovedFwd &&
( bMoveable || ( bFly && !bTab ) ) &&
( !bFtn || !GetUpper()->FindFtnFrm()->GetPrev() )
&& MoveBwd( bDummy ) )
{
SWREFRESHFN( this )
bMovedBwd = true;
bFormatted = sal_False;
if ( bKeep && bMoveable )
{
if( CheckMoveFwd( bMakePage, sal_False, bMovedBwd ) )
{
bMovedFwd = true;
bMoveable = IsMoveable();
SWREFRESHFN( this )
}
Point aOldPos = (Frm().*fnRect->fnGetPos)();
MakePos();
if( aOldPos != (Frm().*fnRect->fnGetPos)() )
{
Prepare( PREP_POS_CHGD, (const void*)&bFormatted, sal_False );
if ( !mbValidSize )
{
(Frm().*fnRect->fnSetWidth)( (GetUpper()->
Prt().*fnRect->fnGetWidth)() );
if ( !mbValidPrtArea )
{
const long nOldW = (Prt().*fnRect->fnGetWidth)();
MakePrtArea( rAttrs );
if( nOldW != (Prt().*fnRect->fnGetWidth)() )
Prepare( PREP_FIXSIZE_CHG, 0, sal_False );
}
if( GetFollow() )
Prepare( PREP_WIDOWS_ORPHANS, 0, sal_False );
mbValidSize = bFormatted = sal_True;
Format();
}
}
SwFrm *pNxt = HasFollow() ? NULL : FindNext();
while( pNxt && pNxt->IsSctFrm() )
{ // Leave empty sections out, go into the other ones.
if( ((SwSectionFrm*)pNxt)->GetSection() )
{
SwFrm* pTmp = ((SwSectionFrm*)pNxt)->ContainsAny();
if( pTmp )
{
pNxt = pTmp;
break;
}
}
pNxt = pNxt->FindNext();
}
if ( pNxt )
{
pNxt->Calc();
if( mbValidPos && !GetIndNext() )
{
SwSectionFrm *pSct = FindSctFrm();
if( pSct && !pSct->GetValidSizeFlag() )
{
SwSectionFrm* pNxtSct = pNxt->FindSctFrm();
if( pNxtSct && pSct->IsAnFollow( pNxtSct ) )
mbValidPos = sal_False;
}
else
mbValidPos = sal_False;
}
}
}
}
// In footnotes, the TxtFrm may validate itself, which can lead to the
// situation that it's position is wrong despite being "valid".
if ( mbValidPos )
{
// #i59341#
// Workaround for inadequate layout algorithm:
// suppress invalidation and calculation of position, if paragraph
// has formatted itself at least STOP_FLY_FORMAT times and
// has anchored objects.
// Thus, the anchored objects get the possibility to format itself
// and this probably solve the layout loop.
if ( bFtn &&
nFormatCount <= STOP_FLY_FORMAT &&
!GetDrawObjs() )
{
mbValidPos = sal_False;
MakePos();
aOldFrmPos = (Frm().*fnRect->fnGetPos)();
aOldPrtPos = (Prt().*fnRect->fnGetPos)();
}
}
// - loop prevention
{
if ( aOldFrm_StopFormat == Frm() &&
aOldPrt_StopFormat == Prt() )
{
++nConsequetiveFormatsWithoutChange;
}
else
{
nConsequetiveFormatsWithoutChange = 0;
}
}
// Yet again an invalid value? Repeat from the start...
if ( !mbValidPos || !mbValidSize || !mbValidPrtArea )
continue;
// Done?
// Attention: because height == 0, it's better to use Top()+Height() instead of
// Bottom(). This might happen with undersized TextFrms on the lower edge of a
// multi-column section
const long nPrtBottom = (GetUpper()->*fnRect->fnGetPrtBottom)();
const long nBottomDist = (Frm().*fnRect->fnBottomDist)( nPrtBottom );
if( nBottomDist >= 0 )
{
if ( bKeep && bMoveable )
{
// We make sure the successor will be formatted the same.
// This way, we keep control until (almost) everything is stable,
// allowing us to avoid endless loops caused by ever repeating
// retries.
//
// bMoveFwdInvalid is required for #38407#. This was originally solved
// in flowfrm.cxx rev 1.38, but broke the above schema and
// preferred to play towers of hanoi (#43669#).
SwFrm *pNxt = HasFollow() ? NULL : FindNext();
// For sections we prefer the content, because it can change
// the page if required.
while( pNxt && pNxt->IsSctFrm() )
{
if( ((SwSectionFrm*)pNxt)->GetSection() )
{
pNxt = ((SwSectionFrm*)pNxt)->ContainsAny();
break;
}
pNxt = pNxt->FindNext();
}
if ( pNxt )
{
const bool bMoveFwdInvalid = 0 != GetIndNext();
const bool bNxtNew =
( 0 == (pNxt->Prt().*fnRect->fnGetHeight)() ) &&
(!pNxt->IsTxtFrm() ||!((SwTxtFrm*)pNxt)->IsHiddenNow());
pNxt->Calc();
if ( !bMovedBwd &&
((bMoveFwdInvalid && !GetIndNext()) ||
bNxtNew) )
{
if( bMovedFwd )
pNotify->SetInvaKeep();
bMovedFwd = false;
}
}
}
continue;
}
// I don't fit into my parents, so it's time to make changes
// as constructively as possible.
//If I'm NOT allowed to leave the parent Frm, I've got a problem.
// Following Arthur Dent, we do the only thing that you can do with
// an unsolvable problem: We ignore it with all our power.
if ( !bMoveable || IsUndersized() )
{
if( !bMoveable && IsInTab() )
{
long nDiff = -(Frm().*fnRect->fnBottomDist)(
(GetUpper()->*fnRect->fnGetPrtBottom)() );
long nReal = GetUpper()->Grow( nDiff );
if( nReal )
continue;
}
break;
}
// If there's no way I can make myself fit into my Upper, the situation
// could still probably be mitigated by splitting up.
// This situation arises with freshly created Follows that had been moved
// to the next page but is still too big for it - ie. needs to be split
// as well.
//
// If I'm unable to split (WouldFit()) and can't be fitted, I'm going
// to tell my TxtFrm part that, if possible, we still need to split despite
// the "don't split" attribute.
bool bMoveOrFit = false;
bool bDontMoveMe = !GetIndPrev();
if( bDontMoveMe && IsInSct() )
{
SwFtnBossFrm* pBoss = FindFtnBossFrm();
bDontMoveMe = !pBoss->IsInSct() ||
( !pBoss->Lower()->GetNext() && !pBoss->GetPrev() );
}
// Finally, we are able to split table rows. Therefore, bDontMoveMe
// can be set to false:
if( bDontMoveMe && IsInTab() &&
0 != const_cast<SwCntntFrm*>(this)->GetNextCellLeaf( MAKEPAGE_NONE ) )
bDontMoveMe = false;
if ( bDontMoveMe && (Frm().*fnRect->fnGetHeight)() >
(GetUpper()->Prt().*fnRect->fnGetHeight)() )
{
if ( !bFitPromise )
{
SwTwips nTmp = (GetUpper()->Prt().*fnRect->fnGetHeight)() -
(Prt().*fnRect->fnGetTop)();
sal_Bool bSplit = !IsFwdMoveAllowed();
if ( nTmp > 0 && WouldFit( nTmp, bSplit, sal_False ) )
{
Prepare( PREP_WIDOWS_ORPHANS, 0, sal_False );
mbValidSize = sal_False;
bFitPromise = true;
continue;
}
/* --------------------------------------------------
* In earlier days, we never tried to fit TextFrms in
* frames and sections using bMoveOrFit by ignoring
* its attributes (Widows, Keep).
* This should have been done at least for column frames;
* as it must be tried anyway with linked frames and sections.
* Exception: If we sit in FormatWidthCols, we must not ignore
* the attributes.
* --------------------------------------------------*/
else if ( !bFtn && bMoveable &&
( !bFly || !FindFlyFrm()->IsColLocked() ) &&
( !bSct || !FindSctFrm()->IsColLocked() ) )
bMoveOrFit = true;
}
#if OSL_DEBUG_LEVEL > 0
else
{
OSL_FAIL( "+TxtFrm didn't respect WouldFit promise." );
}
#endif
}
// Let's see if I can find some space somewhere...
// footnotes in the neighbourhood are moved into _MoveFtnCntFwd
SwFrm *pPre = GetIndPrev();
SwFrm *pOldUp = GetUpper();
/* MA 13. Oct. 98: What is this supposed to be!?
* AMA 14. Dec 98: If a column section can't find any space for its first ContentFrm, it should be
* moved not only to the next column, but probably even to the next page, creating
* a section-follow there.
*/
if( IsInSct() && bMovedFwd && bMakePage && pOldUp->IsColBodyFrm() &&
pOldUp->GetUpper()->GetUpper()->IsSctFrm() &&
( pPre || pOldUp->GetUpper()->GetPrev() ) &&
((SwSectionFrm*)pOldUp->GetUpper()->GetUpper())->MoveAllowed(this) )
{
bMovedFwd = false;
}
const sal_Bool bCheckForGrownBody = pOldUp->IsBodyFrm();
const long nOldBodyHeight = (pOldUp->Frm().*fnRect->fnGetHeight)();
if ( !bMovedFwd && !MoveFwd( bMakePage, sal_False ) )
bMakePage = false;
SWREFRESHFN( this )
// If MoveFwd moves the paragraph to the next page, a following
// paragraph, which contains footnotes can can cause the old upper
// frame to grow. In this case we explicitly allow a new check
// for MoveBwd. Robust: We also check the bMovedBwd flag again.
// If pOldUp was a footnote frame, it has been deleted inside MoveFwd.
// Therefore we only check for growing body frames.
if ( bCheckForGrownBody && ! bMovedBwd && pOldUp != GetUpper() &&
(pOldUp->Frm().*fnRect->fnGetHeight)() > nOldBodyHeight )
{
bMovedFwd = false;
}
else
{
bMovedFwd = true;
}
bFormatted = sal_False;
if ( bMoveOrFit && GetUpper() == pOldUp )
{
// FME 2007-08-30 #i81146# new loop control
if ( nConsequetiveFormatsWithoutChange <= cnStopFormat )
{
Prepare( PREP_MUST_FIT, 0, sal_False );
mbValidSize = sal_False;
bMustFit = true;
continue;
}
#if OSL_DEBUG_LEVEL > 0
OSL_FAIL( "LoopControl in SwCntntFrm::MakeAll" );
#endif
}
if ( bMovedBwd && GetUpper() )
{ // Retire invalidations that have become useless.
GetUpper()->ResetCompletePaint();
if( pPre && !pPre->IsSctFrm() )
::ValidateSz( pPre );
}
} //while ( !mbValidPos || !mbValidSize || !mbValidPrtArea )
// NEW: Looping Louie (Light). Should not be applied in balanced sections.
// Should only be applied if there is no better solution!
LOOPING_LOUIE_LIGHT( bMovedFwd && bMovedBwd && !IsInBalancedSection() &&
(
// #118572#
( bFtn && !FindFtnFrm()->GetRef()->IsInSct() ) ||
// #i33887#
( IsInSct() && bKeep )
// ... add your conditions here ...
),
static_cast<SwTxtFrm&>(*this) );
delete pSaveFtn;
UnlockJoin();
if ( bMovedFwd || bMovedBwd )
pNotify->SetInvaKeep();
// OD 2004-02-26 #i25029#
if ( bMovedFwd )
{
pNotify->SetInvalidatePrevPrtArea();
}
delete pNotify;
SetFlyLock( sal_False );
}
/*************************************************************************
|*
|* SwCntntFrm::_WouldFit()
|*
|*************************************************************************/
void MakeNxt( SwFrm *pFrm, SwFrm *pNxt )
{
// fix(25455): Validate, otherwise this leads to a recursion.
// The first try, cancelling with pFrm = 0 if !Valid, leads to a problem, as
// the Keep may not be considered properly anymore (27417).
const sal_Bool bOldPos = pFrm->GetValidPosFlag();
const sal_Bool bOldSz = pFrm->GetValidSizeFlag();
const sal_Bool bOldPrt = pFrm->GetValidPrtAreaFlag();
pFrm->mbValidPos = pFrm->mbValidPrtArea = pFrm->mbValidSize = sal_True;
// fix(29272): Don't call MakeAll - there, pFrm might be invalidated again, and
// we recursively end up in here again.
if ( pNxt->IsCntntFrm() )
{
SwCntntNotify aNotify( (SwCntntFrm*)pNxt );
SwBorderAttrAccess aAccess( SwFrm::GetCache(), pNxt );
const SwBorderAttrs &rAttrs = *aAccess.Get();
if ( !pNxt->GetValidSizeFlag() )
{
if( pNxt->IsVertical() )
pNxt->Frm().Height( pNxt->GetUpper()->Prt().Height() );
else
pNxt->Frm().Width( pNxt->GetUpper()->Prt().Width() );
}
((SwCntntFrm*)pNxt)->MakePrtArea( rAttrs );
pNxt->Format( &rAttrs );
}
else
{
SwLayNotify aNotify( (SwLayoutFrm*)pNxt );
SwBorderAttrAccess aAccess( SwFrm::GetCache(), pNxt );
const SwBorderAttrs &rAttrs = *aAccess.Get();
if ( !pNxt->GetValidSizeFlag() )
{
if( pNxt->IsVertical() )
pNxt->Frm().Height( pNxt->GetUpper()->Prt().Height() );
else
pNxt->Frm().Width( pNxt->GetUpper()->Prt().Width() );
}
pNxt->Format( &rAttrs );
}
pFrm->mbValidPos = bOldPos;
pFrm->mbValidSize = bOldSz;
pFrm->mbValidPrtArea = bOldPrt;
}
// This routine checks whether there are no other FtnBosses
// between the pFrm's FtnBoss and the pNxt's FtnBoss.
static bool lcl_IsNextFtnBoss( const SwFrm *pFrm, const SwFrm* pNxt )
{
OSL_ENSURE( pFrm && pNxt, "lcl_IsNextFtnBoss: No Frames?" );
pFrm = pFrm->FindFtnBossFrm();
pNxt = pNxt->FindFtnBossFrm();
// If pFrm is a last column, we use the page instead.
while( pFrm && pFrm->IsColumnFrm() && !pFrm->GetNext() )
pFrm = pFrm->GetUpper()->FindFtnBossFrm();
// If pNxt is a first column, we use the page instead.
while( pNxt && pNxt->IsColumnFrm() && !pNxt->GetPrev() )
pNxt = pNxt->GetUpper()->FindFtnBossFrm();
// So.. now pFrm and pNxt are either two adjacent pages or columns.
return ( pFrm && pNxt && pFrm->GetNext() == pNxt );
}
//
sal_Bool SwCntntFrm::_WouldFit( SwTwips nSpace,
SwLayoutFrm *pNewUpper,
sal_Bool bTstMove,
const bool bObjsInNewUpper )
{
// To have the footnote select it's place carefully, it needs
// to be moved in any case if there is at least one page/column
// between the footnote and the new Upper.
SwFtnFrm* pFtnFrm = 0;
if ( IsInFtn() )
{
if( !lcl_IsNextFtnBoss( pNewUpper, this ) )
return sal_True;
pFtnFrm = FindFtnFrm();
}
sal_Bool bRet;
sal_Bool bSplit = !pNewUpper->Lower();
SwCntntFrm *pFrm = this;
const SwFrm *pTmpPrev = pNewUpper->Lower();
if( pTmpPrev && pTmpPrev->IsFtnFrm() )
pTmpPrev = ((SwFtnFrm*)pTmpPrev)->Lower();
while ( pTmpPrev && pTmpPrev->GetNext() )
pTmpPrev = pTmpPrev->GetNext();
do
{
// #i46181#
SwTwips nSecondCheck = 0;
SwTwips nOldSpace = nSpace;
sal_Bool bOldSplit = bSplit;
if ( bTstMove || IsInFly() || ( IsInSct() &&
( pFrm->GetUpper()->IsColBodyFrm() || ( pFtnFrm &&
pFtnFrm->GetUpper()->GetUpper()->IsColumnFrm() ) ) ) )
{
// This is going to get a bit insidious now. If you're faint of heart,
// you'd better look away here. If a Fly contains columns, then the Cntnts
// are movable, except ones in the last column (see SwFrm::IsMoveable()).
// Of course they're allowed to float back. WouldFit() only returns a usable
// value if the Frm is movable. To fool WouldFit() into believing there's
// a movable Frm, I'm just going to hang it somewhere else for the time.
// The same procedure applies for column sections to make SwSectionFrm::Growable()
// return the proper value.
// Within footnotes, we may even need to put the SwFtnFrm somewhere else, if
// there's no SwFtnFrm there.
SwFrm* pTmpFrm = pFrm->IsInFtn() && !pNewUpper->FindFtnFrm() ?
(SwFrm*)pFrm->FindFtnFrm() : pFrm;
SwLayoutFrm *pUp = pTmpFrm->GetUpper();
SwFrm *pOldNext = pTmpFrm->GetNext();
pTmpFrm->Remove();
pTmpFrm->InsertBefore( pNewUpper, 0 );
if ( pFrm->IsTxtFrm() &&
( bTstMove ||
((SwTxtFrm*)pFrm)->HasFollow() ||
( !((SwTxtFrm*)pFrm)->HasPara() &&
!((SwTxtFrm*)pFrm)->IsEmpty()
)
)
)
{
bTstMove = sal_True;
bRet = ((SwTxtFrm*)pFrm)->TestFormat( pTmpPrev, nSpace, bSplit );
}
else
bRet = pFrm->WouldFit( nSpace, bSplit, sal_False );
pTmpFrm->Remove();
pTmpFrm->InsertBefore( pUp, pOldNext );
}
else
{
bRet = pFrm->WouldFit( nSpace, bSplit, sal_False );
nSecondCheck = !bSplit ? 1 : 0;
}
SwBorderAttrAccess aAccess( SwFrm::GetCache(), pFrm );
const SwBorderAttrs &rAttrs = *aAccess.Get();
// Sad but true: We need to consider the spacing in our calculation.
// This already happened in TestFormat.
if ( bRet && !bTstMove )
{
SwTwips nUpper;
if ( pTmpPrev )
{
nUpper = CalcUpperSpace( NULL, pTmpPrev );
// in balanced columned section frames we do not want the
// common border
sal_Bool bCommonBorder = sal_True;
if ( pFrm->IsInSct() && pFrm->GetUpper()->IsColBodyFrm() )
{
const SwSectionFrm* pSct = pFrm->FindSctFrm();
bCommonBorder = pSct->GetFmt()->GetBalancedColumns().GetValue();
}
// #i46181#
nSecondCheck = ( 1 == nSecondCheck &&
pFrm == this &&
IsTxtFrm() &&
bCommonBorder &&
!static_cast<const SwTxtFrm*>(this)->IsEmpty() ) ?
nUpper :
0;
nUpper += bCommonBorder ?
rAttrs.GetBottomLine( *(pFrm) ) :
rAttrs.CalcBottomLine();
}
else
{
// #i46181#
nSecondCheck = 0;
if( pFrm->IsVertical() )
nUpper = pFrm->Frm().Width() - pFrm->Prt().Width();
else
nUpper = pFrm->Frm().Height() - pFrm->Prt().Height();
}
nSpace -= nUpper;
if ( nSpace < 0 )
{
bRet = sal_False;
// #i46181#
if ( nSecondCheck > 0 )
{
// The following code is intended to solve a (rare) problem
// causing some frames not to move backward:
// SwTxtFrm::WouldFit() claims that the whole paragraph
// fits into the given space and subtracts the height of
// all lines from nSpace. nSpace - nUpper is not a valid
// indicator if the frame should be allowed to move backward.
// We do a second check with the original remaining space
// reduced by the required upper space:
nOldSpace -= nSecondCheck;
const bool bSecondRet = nOldSpace >= 0 && pFrm->WouldFit( nOldSpace, bOldSplit, sal_False );
if ( bSecondRet && bOldSplit && nOldSpace >= 0 )
{
bRet = sal_True;
bSplit = sal_True;
}
}
}
}
// OD 2004-03-01 #106629# - also consider lower spacing in table cells
if ( bRet && IsInTab() &&
pNewUpper->GetFmt()->getIDocumentSettingAccess()->get(IDocumentSettingAccess::ADD_PARA_SPACING_TO_TABLE_CELLS) )
{
nSpace -= rAttrs.GetULSpace().GetLower();
if ( nSpace < 0 )
{
bRet = sal_False;
}
}
if ( bRet && !bSplit && pFrm->IsKeep( rAttrs.GetAttrSet() ) )
{
if( bTstMove )
{
while( pFrm->IsTxtFrm() && ((SwTxtFrm*)pFrm)->HasFollow() )
{
pFrm = ((SwTxtFrm*)pFrm)->GetFollow();
}
// OD 11.04.2003 #108824# - If last follow frame of <this> text
// frame isn't valid, a formatting of the next content frame
// doesn't makes sense. Thus, return sal_True.
if ( IsAnFollow( pFrm ) && !pFrm->IsValid() )
{
OSL_FAIL( "Only a warning for task 108824:/n<SwCntntFrm::_WouldFit(..) - follow not valid!" );
return sal_True;
}
}
SwFrm *pNxt;
if( 0 != (pNxt = pFrm->FindNext()) && pNxt->IsCntntFrm() &&
( !pFtnFrm || ( pNxt->IsInFtn() &&
pNxt->FindFtnFrm()->GetAttr() == pFtnFrm->GetAttr() ) ) )
{
// TestFormat(?) does not like paragraph- or character anchored objects.
//
// current solution for the test formatting doesn't work, if
// objects are present in the remaining area of the new upper
if ( bTstMove &&
( pNxt->GetDrawObjs() || bObjsInNewUpper ) )
{
return sal_True;
}
if ( !pNxt->IsValid() )
MakeNxt( pFrm, pNxt );
// Little trick: if the next has a predecessor, then the paragraph
// spacing has been calculated already, and we don't need to re-calculate
// it in an expensive way.
if( lcl_NotHiddenPrev( pNxt ) )
pTmpPrev = 0;
else
{
if( pFrm->IsTxtFrm() && ((SwTxtFrm*)pFrm)->IsHiddenNow() )
pTmpPrev = lcl_NotHiddenPrev( pFrm );
else
pTmpPrev = pFrm;
}
pFrm = (SwCntntFrm*)pNxt;
}
else
pFrm = 0;
}
else
pFrm = 0;
} while ( bRet && pFrm );
return bRet;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */