libreoffice/sw/source/core/layout/ssfrm.cxx

/* -*- 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 <ftnfrm.hxx>
#include <pagefrm.hxx>
#include <rootfrm.hxx>
#include <cntfrm.hxx>
#include <doc.hxx>
#include <node.hxx>
#include <dview.hxx>
#include <dcontact.hxx>
#include <dflyobj.hxx>
#include <flyfrm.hxx>
#include <txtfrm.hxx>       // ClearPara()
#include <cellfrm.hxx>
#include <swtable.hxx>
#include <fmtfsize.hxx>
#include <ftnidx.hxx>
#include <txtftn.hxx>
#include <ndtxt.hxx>
#include <ndindex.hxx>
#include <frmtool.hxx>
#include <pagedesc.hxx>
#include <editeng/boxitem.hxx>
#include <editeng/shaditem.hxx>
#include <fmtclds.hxx>
#include <viewsh.hxx>
#include <viewimp.hxx>
#include <sortedobjs.hxx>
#include <hints.hxx>
#include <switerator.hxx>

    // No inline cause we need the function pointers
long SwFrm::GetTopMargin() const
    { return Prt().Top(); }
long SwFrm::GetBottomMargin() const
    { return Frm().Height() -Prt().Height() -Prt().Top(); }
long SwFrm::GetLeftMargin() const
    { return Prt().Left(); }
long SwFrm::GetRightMargin() const
    { return Frm().Width() - Prt().Width() - Prt().Left(); }
long SwFrm::GetPrtLeft() const
    { return Frm().Left() + Prt().Left(); }
long SwFrm::GetPrtBottom() const
    { return Frm().Top() + Prt().Height() + Prt().Top(); }
long SwFrm::GetPrtRight() const
    { return Frm().Left() + Prt().Width() + Prt().Left(); }
long SwFrm::GetPrtTop() const
    { return Frm().Top() + Prt().Top(); }

sal_Bool SwFrm::SetMinLeft( long nDeadline )
{
    SwTwips nDiff = nDeadline - Frm().Left();
    if( nDiff > 0 )
    {
        Frm().Left( nDeadline );
        Prt().Width( Prt().Width() - nDiff );
        return sal_True;
    }
    return sal_False;
}

sal_Bool SwFrm::SetMaxBottom( long nDeadline )
{
    SwTwips nDiff = Frm().Top() + Frm().Height() - nDeadline;
    if( nDiff > 0 )
    {
        Frm().Height( Frm().Height() - nDiff );
        Prt().Height( Prt().Height() - nDiff );
        return sal_True;
    }
    return sal_False;
}

sal_Bool SwFrm::SetMinTop( long nDeadline )
{
    SwTwips nDiff = nDeadline - Frm().Top();
    if( nDiff > 0 )
    {
        Frm().Top( nDeadline );
        Prt().Height( Prt().Height() - nDiff );
        return sal_True;
    }
    return sal_False;
}

sal_Bool SwFrm::SetMaxRight( long nDeadline )
{
    SwTwips nDiff = Frm().Left() + Frm().Width() - nDeadline;
    if( nDiff > 0 )
    {
        Frm().Width( Frm().Width() - nDiff );
        Prt().Width( Prt().Width() - nDiff );
        return sal_True;
    }
    return sal_False;
}

void SwFrm::MakeBelowPos( const SwFrm* pUp, const SwFrm* pPrv, sal_Bool bNotify )
{
    if( pPrv )
    {
        maFrm.Pos( pPrv->Frm().Pos() );
        maFrm.Pos().Y() += pPrv->Frm().Height();
    }
    else
    {
        maFrm.Pos( pUp->Frm().Pos() );
        maFrm.Pos() += pUp->Prt().Pos();
    }
    if( bNotify )
        maFrm.Pos().Y() += 1;
}

void SwFrm::MakeUpperPos( const SwFrm* pUp, const SwFrm* pPrv, sal_Bool bNotify )
{
    if( pPrv )
    {
        maFrm.Pos( pPrv->Frm().Pos() );
        maFrm.Pos().Y() -= Frm().Height();
    }
    else
    {
        maFrm.Pos( pUp->Frm().Pos() );
        maFrm.Pos() += pUp->Prt().Pos();
        maFrm.Pos().Y() += pUp->Prt().Height() - maFrm.Height();
    }
    if( bNotify )
        maFrm.Pos().Y() -= 1;
}

void SwFrm::MakeLeftPos( const SwFrm* pUp, const SwFrm* pPrv, sal_Bool bNotify )
{
    if( pPrv )
    {
        maFrm.Pos( pPrv->Frm().Pos() );
        maFrm.Pos().X() -= Frm().Width();
    }
    else
    {
        maFrm.Pos( pUp->Frm().Pos() );
        maFrm.Pos() += pUp->Prt().Pos();
        maFrm.Pos().X() += pUp->Prt().Width() - maFrm.Width();
    }
    if( bNotify )
        maFrm.Pos().X() -= 1;
}

void SwFrm::MakeRightPos( const SwFrm* pUp, const SwFrm* pPrv, sal_Bool bNotify )
{
    if( pPrv )
    {
        maFrm.Pos( pPrv->Frm().Pos() );
        maFrm.Pos().X() += pPrv->Frm().Width();
    }
    else
    {
        maFrm.Pos( pUp->Frm().Pos() );
        maFrm.Pos() += pUp->Prt().Pos();
    }
    if( bNotify )
        maFrm.Pos().X() += 1;
}

void SwFrm::SetTopBottomMargins( long nTop, long nBot )
{
    Prt().Top( nTop );
    Prt().Height( Frm().Height() - nTop - nBot );
}

void SwFrm::SetBottomTopMargins( long nBot, long nTop )
{
    Prt().Top( nTop );
    Prt().Height( Frm().Height() - nTop - nBot );
}

void SwFrm::SetLeftRightMargins( long nLeft, long nRight)
{
    Prt().Left( nLeft );
    Prt().Width( Frm().Width() - nLeft - nRight );
}

void SwFrm::SetRightLeftMargins( long nRight, long nLeft)
{
    Prt().Left( nLeft );
    Prt().Width( Frm().Width() - nLeft - nRight );
}

const sal_uInt16 nMinVertCellHeight = 1135;

/*--------------------------------------------------
 * SwFrm::CheckDirChange(..)
 * checks the layout direction and
 * invalidates the lower frames rekursivly, if necessary.
 * --------------------------------------------------*/

void SwFrm::CheckDirChange()
{
    sal_Bool bOldVert = GetVerticalFlag();
    sal_Bool bOldRev = IsReverse();
    sal_Bool bOldR2L = GetRightToLeftFlag();
    SetInvalidVert( sal_True );
    SetInvalidR2L( sal_True );
    bool bChg = bOldR2L != IsRightToLeft();
    //Badaa: 2008-04-18 * Support for Classical Mongolian Script (SCMS) joint with Jiayanmin
    sal_Bool bOldVertL2R = IsVertLR();
    if( ( IsVertical() != bOldVert ) || bChg || IsReverse() != bOldRev || bOldVertL2R != IsVertLR() )
    {
        InvalidateAll();
        if( IsLayoutFrm() )
        {
            // set minimum row height for vertical cells in horizontal table:
            if ( IsCellFrm() && GetUpper() )
            {
                if ( IsVertical() != GetUpper()->IsVertical() &&
                     ((SwCellFrm*)this)->GetTabBox()->getRowSpan() == 1 )
                {
                    SwTableLine* pLine = (SwTableLine*)((SwCellFrm*)this)->GetTabBox()->GetUpper();
                    SwFrmFmt* pFrmFmt = pLine->GetFrmFmt();
                    SwFmtFrmSize aNew( pFrmFmt->GetFrmSize() );
                    if ( ATT_FIX_SIZE != aNew.GetHeightSizeType() )
                        aNew.SetHeightSizeType( ATT_MIN_SIZE );
                    if ( aNew.GetHeight() < nMinVertCellHeight )
                        aNew.SetHeight( nMinVertCellHeight );
                    SwDoc* pDoc = pFrmFmt->GetDoc();
                    pDoc->SetAttr( aNew, *pLine->ClaimFrmFmt() );
                }
            }

            SwFrm* pFrm = ((SwLayoutFrm*)this)->Lower();
            const SwFmtCol* pCol = NULL;
            SwLayoutFrm* pBody = 0;
            if( pFrm )
            {
                if( IsPageFrm() )
                {
                    // If we're a page frame and we change our layout direction,
                    // we have to look for columns and rearrange them.
                    pBody = ((SwPageFrm*)this)->FindBodyCont();
                    if(pBody && pBody->Lower() && pBody->Lower()->IsColumnFrm())
                        pCol = &((SwPageFrm*)this)->GetFmt()->GetCol();
                }
                else if( pFrm->IsColumnFrm() )
                {
                    pBody = ((SwLayoutFrm*)this);
                    const SwFrmFmt *pFmt = pBody->GetFmt();
                    if( pFmt )
                        pCol = &pFmt->GetCol();
                }
            }
            while( pFrm )
            {
                pFrm->CheckDirChange();
                pFrm = pFrm->GetNext();
            }
            if( pCol )
                pBody->AdjustColumns( pCol, sal_True );
        }
        else if( IsTxtFrm() )
            ((SwTxtFrm*)this)->Prepare( PREP_CLEAR );

        // #i31698# - notify anchored objects also for page frames.
        // Remove code above for special handling of page frames
        if ( GetDrawObjs() )
        {
            const SwSortedObjs *pObjs = GetDrawObjs();
            sal_uInt32 nCnt = pObjs->Count();
            for ( sal_uInt32 i = 0; i < nCnt; ++i )
            {
                SwAnchoredObject* pAnchoredObj = (*pObjs)[i];
                if( pAnchoredObj->ISA(SwFlyFrm) )
                    static_cast<SwFlyFrm*>(pAnchoredObj)->CheckDirChange();
                else
                {
                    // OD 2004-04-06 #i26791# - direct object
                    // positioning no longer needed. Instead
                    // invalidate
                    pAnchoredObj->InvalidateObjPos();
                }
                // #i31698# - update layout direction of
                // anchored object
                {
                    ::setContextWritingMode( pAnchoredObj->DrawObj(), pAnchoredObj->GetAnchorFrmContainingAnchPos() );
                    pAnchoredObj->UpdateLayoutDir();
                }
            }
        }
    }
}

/*--------------------------------------------------
 * SwFrm::GetFrmAnchorPos(..)
 * returns the position for anchors based on frame direction
 * --------------------------------------------------*/
// OD 2004-03-10 #i11860# - consider lower space and line spacing of
// previous frame according to new option 'Use former object positioning'
Point SwFrm::GetFrmAnchorPos( sal_Bool bIgnoreFlysAnchoredAtThisFrame ) const
{
    Point aAnchor = Frm().Pos();
    //Badaa: 2008-04-18 * Support for Classical Mongolian Script (SCMS) joint with Jiayanmin
    if ( ( IsVertical() && !IsVertLR() ) || IsRightToLeft() )
        aAnchor.X() += Frm().Width();

    if ( IsTxtFrm() )
    {
        SwTwips nBaseOfstForFly =
            ((SwTxtFrm*)this)->GetBaseOfstForFly( bIgnoreFlysAnchoredAtThisFrame );
        if ( IsVertical() )
            aAnchor.Y() += nBaseOfstForFly;
        else
            aAnchor.X() += nBaseOfstForFly;

        // OD 2004-03-10 #i11860# - if option 'Use former object positioning'
        // is OFF, consider the lower space and the line spacing of the
        // previous frame and the spacing considered for the page grid
        const SwTxtFrm* pThisTxtFrm = static_cast<const SwTxtFrm*>(this);
        const SwTwips nUpperSpaceAmountConsideredForPrevFrmAndPageGrid =
                pThisTxtFrm->GetUpperSpaceAmountConsideredForPrevFrmAndPageGrid();
        if ( IsVertical() )
        {
            aAnchor.X() -= nUpperSpaceAmountConsideredForPrevFrmAndPageGrid;
        }
        else
        {
            aAnchor.Y() += nUpperSpaceAmountConsideredForPrevFrmAndPageGrid;
        }
    }

    return aAnchor;
}


/*************************************************************************
|*
|*  SwFrm::~SwFrm()
|*
|*************************************************************************/

void SwFrm::Destroy()
{
    // accessible objects for fly and cell frames have been already disposed
    // by the destructors of the derived classes.
    if( IsAccessibleFrm() && !(IsFlyFrm() || IsCellFrm()) && GetDep() )
    {
        SwRootFrm *pRootFrm = getRootFrm();
        if( pRootFrm && pRootFrm->IsAnyShellAccessible() )
        {
            ViewShell *pVSh = pRootFrm->GetCurrShell();
            if( pVSh && pVSh->Imp() )
            {
                OSL_ENSURE( !GetLower(), "Lowers should be dispose already!" );
                pVSh->Imp()->DisposeAccessibleFrm( this );
            }
        }
    }

    if( mpDrawObjs )
    {
        for ( sal_uInt32 i = mpDrawObjs->Count(); i; )
        {
            SwAnchoredObject* pAnchoredObj = (*mpDrawObjs)[--i];
            if ( pAnchoredObj->ISA(SwFlyFrm) )
                delete pAnchoredObj;
            else
            {
                SdrObject* pSdrObj = pAnchoredObj->DrawObj();
                SwDrawContact* pContact =
                        static_cast<SwDrawContact*>(pSdrObj->GetUserCall());
                OSL_ENSURE( pContact,
                        "<SwFrm::~SwFrm> - missing contact for drawing object" );
                if ( pContact )
                {
                    pContact->DisconnectObjFromLayout( pSdrObj );
                }
            }
        }
        delete mpDrawObjs;
        mpDrawObjs = 0;
    }
}

SwFrm::~SwFrm()
{
    if (!IsRootFrm()) // ~SwRootFrm already calls Destroy!
    {
        Destroy();
    }

#if OSL_DEBUG_LEVEL > 0
    // JP 15.10.2001: for detection of access to deleted frames
    mpDrawObjs = (SwSortedObjs*)0x33333333;
#endif
}

/*************************************************************************/

const SwFrmFmt * SwLayoutFrm::GetFmt() const
{
    return static_cast< const SwFlyFrmFmt * >( GetDep() );
}

SwFrmFmt * SwLayoutFrm::GetFmt()
{
    return static_cast< SwFlyFrmFmt * >( GetDep() );
}


/*************************************************************************
|*
|*    SwLayoutFrm::SetFrmFmt()
|*
|*************************************************************************/


void SwLayoutFrm::SetFrmFmt( SwFrmFmt *pNew )
{
    if ( pNew != GetFmt() )
    {
        SwFmtChg aOldFmt( GetFmt() );
        pNew->Add( this );
        SwFmtChg aNewFmt( pNew );
        ModifyNotification( &aOldFmt, &aNewFmt );
    }
}

/*************************************************************************
|*                  SwCntntFrm::SwCntntFrm()
|*************************************************************************/
SwCntntFrm::SwCntntFrm( SwCntntNode * const pCntnt, SwFrm* pSib ) :
    SwFrm( pCntnt, pSib ),
    SwFlowFrm( (SwFrm&)*this )
{
}

/*************************************************************************
|*                  SwCntntFrm::~SwCntntFrm()
|*************************************************************************/
SwCntntFrm::~SwCntntFrm()
{
    SwCntntNode* pCNd;
    if( 0 != ( pCNd = PTR_CAST( SwCntntNode, GetRegisteredIn() )) &&
        !pCNd->GetDoc()->IsInDtor() )
    {
        //Unregister from root if I'm still in turbo there.
        SwRootFrm *pRoot = getRootFrm();
        if( pRoot && pRoot->GetTurbo() == this )
        {
            pRoot->DisallowTurbo();
            pRoot->ResetTurbo();
        }
        if( IsTxtFrm() && ((SwTxtFrm*)this)->HasFtn() )
        {
            SwTxtNode *pTxtNd = ((SwTxtFrm*)this)->GetTxtNode();
            const SwFtnIdxs &rFtnIdxs = pCNd->GetDoc()->GetFtnIdxs();
            sal_uInt16 nPos;
            sal_uLong nIndex = pCNd->GetIndex();
            rFtnIdxs.SeekEntry( *pTxtNd, &nPos );
            SwTxtFtn* pTxtFtn;
            if( nPos < rFtnIdxs.size() )
            {
                while( nPos && pTxtNd == &(rFtnIdxs[ nPos ]->GetTxtNode()) )
                    --nPos;
                if( nPos || pTxtNd != &(rFtnIdxs[ nPos ]->GetTxtNode()) )
                    ++nPos;
            }
            while( nPos < rFtnIdxs.size() )
            {
                pTxtFtn = rFtnIdxs[ nPos ];
                if( pTxtFtn->GetTxtNode().GetIndex() > nIndex )
                    break;
                pTxtFtn->DelFrms( this );
                ++nPos;
            }
        }
    }
}

void SwCntntFrm::RegisterToNode( SwCntntNode& rNode )
{
    rNode.Add( this );
}

void SwCntntFrm::DelFrms( const SwCntntNode& rNode )
{
    SwIterator<SwCntntFrm,SwCntntNode> aIter( rNode );
    for( SwCntntFrm* pFrm = aIter.First(); pFrm; pFrm = aIter.Next() )
    {
        // #i27138#
        // notify accessibility paragraphs objects about changed
        // CONTENT_FLOWS_FROM/_TO relation.
        // Relation CONTENT_FLOWS_FROM for current next paragraph will change
        // and relation CONTENT_FLOWS_TO for current previous paragraph will change.
        if ( pFrm->IsTxtFrm() )
        {
            ViewShell* pViewShell( pFrm->getRootFrm()->GetCurrShell() );
            if ( pViewShell && pViewShell->GetLayout() &&
                 pViewShell->GetLayout()->IsAnyShellAccessible() )
            {
                pViewShell->InvalidateAccessibleParaFlowRelation(
                            dynamic_cast<SwTxtFrm*>(pFrm->FindNextCnt( true )),
                            dynamic_cast<SwTxtFrm*>(pFrm->FindPrevCnt( true )) );
            }
        }
        if( pFrm->IsFollow() )
        {
            SwCntntFrm* pMaster = (SwTxtFrm*)pFrm->FindMaster();
            pMaster->SetFollow( pFrm->GetFollow() );
        }
        pFrm->SetFollow( 0 );//So it doesn't get funny ideas.
                                //Otherwise it could be possible that a follow
                                //gets destroyed before its master. Following
                                //the now invalid pointer will then lead to an
                                //illegal memory access. The chain can be
                                //crushed here because we'll destroy all of it
                                //anyway.

        if( pFrm->GetUpper() && pFrm->IsInFtn() && !pFrm->GetIndNext() &&
            !pFrm->GetIndPrev() )
        {
            SwFtnFrm *pFtn = pFrm->FindFtnFrm();
            OSL_ENSURE( pFtn, "You promised a FtnFrm?" );
            SwCntntFrm* pCFrm;
            if( !pFtn->GetFollow() && !pFtn->GetMaster() &&
                0 != ( pCFrm = pFtn->GetRefFromAttr()) && pCFrm->IsFollow() )
            {
                OSL_ENSURE( pCFrm->IsTxtFrm(), "NoTxtFrm has Footnote?" );
                ((SwTxtFrm*)pCFrm->FindMaster())->Prepare( PREP_FTN_GONE );
            }
        }
        pFrm->Cut();
        delete pFrm;
    }
}

/*************************************************************************
|*
|*  SwLayoutFrm::~SwLayoutFrm
|*
|*************************************************************************/

void SwLayoutFrm::Destroy()
{
    SwFrm *pFrm = pLower;

    if( GetFmt() && !GetFmt()->GetDoc()->IsInDtor() )
    {
        while ( pFrm )
        {
            //First delete the Objs of the Frm because they can't unregister
            //from the page after remove.
            //We don't want to create an endless loop only because one couldn't
            //unregister.

            sal_uInt32 nCnt;
            while ( pFrm->GetDrawObjs() && pFrm->GetDrawObjs()->Count() )
            {
                nCnt = pFrm->GetDrawObjs()->Count();
                // #i28701#
                SwAnchoredObject* pAnchoredObj = (*pFrm->GetDrawObjs())[0];
                if ( pAnchoredObj->ISA(SwFlyFrm) )
                    delete pAnchoredObj;
                else
                {
                    SdrObject* pSdrObj = pAnchoredObj->DrawObj();
                    SwDrawContact* pContact =
                            static_cast<SwDrawContact*>(pSdrObj->GetUserCall());
                    OSL_ENSURE( pContact,
                            "<SwFrm::~SwFrm> - missing contact for drawing object" );
                    if ( pContact )
                    {
                        pContact->DisconnectObjFromLayout( pSdrObj );
                    }
                }
                if ( pFrm->GetDrawObjs() &&
                     nCnt == pFrm->GetDrawObjs()->Count() )
                {
                    pFrm->GetDrawObjs()->Remove( *pAnchoredObj );
                }
            }
            pFrm->Remove();
            delete pFrm;
            pFrm = pLower;
        }
        //Delete the Flys, the last one also deletes the array.
        sal_uInt32 nCnt;
        while ( GetDrawObjs() && GetDrawObjs()->Count() )
        {
            nCnt = GetDrawObjs()->Count();

            // #i28701#
            SwAnchoredObject* pAnchoredObj = (*GetDrawObjs())[0];
            if ( pAnchoredObj->ISA(SwFlyFrm) )
                delete pAnchoredObj;
            else
            {
                SdrObject* pSdrObj = pAnchoredObj->DrawObj();
                SwDrawContact* pContact =
                        static_cast<SwDrawContact*>(pSdrObj->GetUserCall());
                OSL_ENSURE( pContact,
                        "<SwFrm::~SwFrm> - missing contact for drawing object" );
                if ( pContact )
                {
                    pContact->DisconnectObjFromLayout( pSdrObj );
                }
            }
            if ( GetDrawObjs() && nCnt == GetDrawObjs()->Count() )
            {
                GetDrawObjs()->Remove( *pAnchoredObj );
            }
        }
    }
    else
    {
        while( pFrm )
        {
            SwFrm *pNxt = pFrm->GetNext();
            delete pFrm;
            pFrm = pNxt;
        }
    }
}

SwLayoutFrm::~SwLayoutFrm()
{
    if (!IsRootFrm()) // ~SwRootFrm already calls Destroy!
    {
        Destroy();
    }
}

/*************************************************************************
|*
|*  SwFrm::PaintArea()
|*
|*  The paintarea is the area, in which the content of a frame is allowed
|*  to be displayed. This region could be larger than the printarea (Prt())
|*  of the upper, it includes e.g. often the margin of the page.
|*
|*************************************************************************/

const SwRect SwFrm::PaintArea() const
{
    // NEW TABLES
    // Cell frames may not leave their upper:
    SwRect aRect = IsRowFrm() ? GetUpper()->Frm() : Frm();
    const sal_Bool bVert = IsVertical();
    //Badaa: 2008-04-18 * Support for Classical Mongolian Script (SCMS) joint with Jiayanmin
    SwRectFn fnRect = bVert ? ( IsVertLR() ? fnRectVertL2R : fnRectVert ) : fnRectHori;
    long nRight = (aRect.*fnRect->fnGetRight)();
    long nLeft  = (aRect.*fnRect->fnGetLeft)();
    const SwFrm* pTmp = this;
    bool bLeft = true;
    bool bRight = true;
    long nRowSpan = 0;
    while( pTmp )
    {
        if( pTmp->IsCellFrm() && pTmp->GetUpper() &&
            pTmp->GetUpper()->IsVertical() != pTmp->IsVertical() )
            nRowSpan = ((SwCellFrm*)pTmp)->GetTabBox()->getRowSpan();
        long nTmpRight = (pTmp->Frm().*fnRect->fnGetRight)();
        long nTmpLeft = (pTmp->Frm().*fnRect->fnGetLeft)();
        if( pTmp->IsRowFrm() && nRowSpan > 1 )
        {
            const SwFrm* pNxt = pTmp;
            while( --nRowSpan > 0 && pNxt->GetNext() )
                pNxt = pNxt->GetNext();
            if( pTmp->IsVertical() )
                nTmpLeft = (pNxt->Frm().*fnRect->fnGetLeft)();
            else
                nTmpRight = (pNxt->Frm().*fnRect->fnGetRight)();
        }
        OSL_ENSURE( pTmp, "PaintArea lost in time and space" );
        if( pTmp->IsPageFrm() || pTmp->IsFlyFrm() ||
            pTmp->IsCellFrm() || pTmp->IsRowFrm() || //nobody leaves a table!
            pTmp->IsRootFrm() )
        {
            if( bLeft || nLeft < nTmpLeft )
                nLeft = nTmpLeft;
            if( bRight || nTmpRight < nRight )
                nRight = nTmpRight;
            if( pTmp->IsPageFrm() || pTmp->IsFlyFrm() || pTmp->IsRootFrm() )
                break;
            bLeft = false;
            bRight = false;
        }
        else if( pTmp->IsColumnFrm() )  // nobody enters neightbour columns
        {
            sal_Bool bR2L = pTmp->IsRightToLeft();
            // the first column has _no_ influence to the left range
            if( bR2L ? pTmp->GetNext() : pTmp->GetPrev() )
            {
                if( bLeft || nLeft < nTmpLeft )
                    nLeft = nTmpLeft;
                bLeft = false;
            }
             // the last column has _no_ influence to the right range
            if( bR2L ? pTmp->GetPrev() : pTmp->GetNext() )
            {
                if( bRight || nTmpRight < nRight )
                    nRight = nTmpRight;
                bRight = false;
            }
        }
        else if( bVert && pTmp->IsBodyFrm() )
        {
            // Header and footer frames have always horizontal direction and
            // limit the body frame.
            // A previous frame of a body frame must be a header,
            // the next frame of a body frame may be a footnotecontainer or
            // a footer. The footnotecontainer has the same direction like
            // the body frame.
            if( pTmp->GetPrev() && ( bLeft || nLeft < nTmpLeft ) )
            {
                nLeft = nTmpLeft;
                bLeft = false;
            }
            if( pTmp->GetNext() &&
                ( pTmp->GetNext()->IsFooterFrm() || pTmp->GetNext()->GetNext() )
                && ( bRight || nTmpRight < nRight ) )
            {
                nRight = nTmpRight;
                bRight = false;
            }
        }
        pTmp = pTmp->GetUpper();
    }
    (aRect.*fnRect->fnSetLeft)( nLeft );
    (aRect.*fnRect->fnSetRight)( nRight );
    return aRect;
}

/*************************************************************************
|*
|*  SwFrm::UnionFrm()
|*
|*  The unionframe is the framearea (Frm()) of a frame expanded by the
|*  printarea, if there's a negative margin at the left or right side.
|*
|*************************************************************************/

const SwRect SwFrm::UnionFrm( sal_Bool bBorder ) const
{
    sal_Bool bVert = IsVertical();
    //Badaa: 2008-04-18 * Support for Classical Mongolian Script (SCMS) joint with Jiayanmin
    SwRectFn fnRect = bVert ? ( IsVertLR() ? fnRectVertL2R : fnRectVert ) : fnRectHori;
    long nLeft = (Frm().*fnRect->fnGetLeft)();
    long nWidth = (Frm().*fnRect->fnGetWidth)();
    long nPrtLeft = (Prt().*fnRect->fnGetLeft)();
    long nPrtWidth = (Prt().*fnRect->fnGetWidth)();
    if( nPrtLeft + nPrtWidth > nWidth )
        nWidth = nPrtLeft + nPrtWidth;
    if( nPrtLeft < 0 )
    {
        nLeft += nPrtLeft;
        nWidth -= nPrtLeft;
    }
    SwTwips nRight = nLeft + nWidth;
    long nAdd = 0;
    if( bBorder )
    {
        SwBorderAttrAccess aAccess( SwFrm::GetCache(), this );
        const SwBorderAttrs &rAttrs = *aAccess.Get();
        const SvxBoxItem &rBox = rAttrs.GetBox();
        if ( rBox.GetLeft() )
            nLeft -= rBox.CalcLineSpace( BOX_LINE_LEFT );
        else if ( rAttrs.IsBorderDist() )
            nLeft -= rBox.GetDistance( BOX_LINE_LEFT ) + 1;
        if ( rBox.GetRight() )
            nAdd += rBox.CalcLineSpace( BOX_LINE_RIGHT );
        else if ( rAttrs.IsBorderDist() )
            nAdd += rBox.GetDistance( BOX_LINE_RIGHT ) + 1;
        if( rAttrs.GetShadow().GetLocation() != SVX_SHADOW_NONE )
        {
            const SvxShadowItem &rShadow = rAttrs.GetShadow();
            nLeft -= rShadow.CalcShadowSpace( SHADOW_LEFT );
            nAdd += rShadow.CalcShadowSpace( SHADOW_RIGHT );
        }
    }
    if( IsTxtFrm() && ((SwTxtFrm*)this)->HasPara() )
    {
        long nTmp = ((SwTxtFrm*)this)->HangingMargin();
        if( nTmp > nAdd )
            nAdd = nTmp;
    }
    nWidth = nRight + nAdd - nLeft;
    SwRect aRet( Frm() );
    (aRet.*fnRect->fnSetPosX)( nLeft );
    (aRet.*fnRect->fnSetWidth)( nWidth );
    return aRet;
}




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