Files
libreoffice/sw/source/core/layout/ssfrm.cxx
Caolán McNamara f9eff2a402 Resolves: fdo#87199 deregister during destroy as lower of upper
Change-Id: I7e52bba78a0fbe32814510b44ad049d3504e7164
2014-12-15 13:46:33 +00:00

693 lines
22 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 <pagefrm.hxx>
#include <rootfrm.hxx>
#include <dcontact.hxx>
#include <flyfrm.hxx>
#include <txtfrm.hxx>
#include <cellfrm.hxx>
#include <swtable.hxx>
#include <fmtfsize.hxx>
#include <editeng/boxitem.hxx>
#include <editeng/shaditem.hxx>
#include <fmtclds.hxx>
#include <viewimp.hxx>
#include <sortedobjs.hxx>
#include <hints.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(); }
bool SwFrm::SetMinLeft( long nDeadline )
{
SwTwips nDiff = nDeadline - Frm().Left();
if( nDiff > 0 )
{
Frm().Left( nDeadline );
Prt().Width( Prt().Width() - nDiff );
return true;
}
return false;
}
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 true;
}
return false;
}
bool SwFrm::SetMinTop( long nDeadline )
{
SwTwips nDiff = nDeadline - Frm().Top();
if( nDiff > 0 )
{
Frm().Top( nDeadline );
Prt().Height( Prt().Height() - nDiff );
return true;
}
return false;
}
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 true;
}
return false;
}
void SwFrm::MakeBelowPos( const SwFrm* pUp, const SwFrm* pPrv, 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, 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, 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, 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 );
}
/// checks the layout direction and invalidates the lower frames rekursivly, if necessary.
void SwFrm::CheckDirChange()
{
bool bOldVert = GetVerticalFlag();
bool bOldRev = IsReverse();
bool bOldR2L = GetRightToLeftFlag();
SetInvalidVert( true );
SetInvalidR2L( true );
bool bChg = bOldR2L != IsRightToLeft();
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() &&
static_cast<SwCellFrm*>(this)->GetTabBox()->getRowSpan() == 1 )
{
enum {
MIN_VERT_CELL_HEIGHT = 1135
};
SwTableLine* pLine = (SwTableLine*)static_cast<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() < MIN_VERT_CELL_HEIGHT )
aNew.SetHeight( MIN_VERT_CELL_HEIGHT );
SwDoc* pDoc = pFrmFmt->GetDoc();
pDoc->SetAttr( aNew, *pLine->ClaimFrmFmt() );
}
}
SwFrm* pFrm = static_cast<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 = static_cast<SwPageFrm*>(this)->FindBodyCont();
if(pBody && pBody->Lower() && pBody->Lower()->IsColumnFrm())
pCol = &static_cast<SwPageFrm*>(this)->GetFmt()->GetCol();
}
else if( pFrm->IsColumnFrm() )
{
pBody = static_cast<SwLayoutFrm*>(this);
const SwFrmFmt *pFmt = pBody->GetFmt();
if( pFmt )
pCol = &pFmt->GetCol();
}
}
while( pFrm )
{
pFrm->CheckDirChange();
pFrm = pFrm->GetNext();
}
if( pCol )
pBody->AdjustColumns( pCol, true );
}
else if( IsTxtFrm() )
static_cast<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();
const size_t nCnt = pObjs->size();
for ( size_t 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();
}
}
}
}
}
/// 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( bool bIgnoreFlysAnchoredAtThisFrame ) const
{
Point aAnchor = Frm().Pos();
if ( ( IsVertical() && !IsVertLR() ) || IsRightToLeft() )
aAnchor.X() += Frm().Width();
if ( IsTxtFrm() )
{
SwTwips nBaseOfstForFly =
static_cast<const 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;
}
void SwFrm::Destroy()
{
mbInDtor = true;
// 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() )
{
SwViewShell *pVSh = pRootFrm->GetCurrShell();
if( pVSh && pVSh->Imp() )
{
OSL_ENSURE( !GetLower(), "Lowers should be dispose already!" );
pVSh->Imp()->DisposeAccessibleFrm( this );
}
}
}
if( mpDrawObjs )
{
for ( size_t i = mpDrawObjs->size(); 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;
}
SwLayoutFrm *pFrm = GetUpper();
if (pFrm && pFrm->pLower == this)
{
pFrm->pLower = NULL;
}
}
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 = reinterpret_cast<SwSortedObjs*>(0x33333333);
#endif
}
const SwFrmFmt * SwLayoutFrm::GetFmt() const
{
return static_cast< const SwFrmFmt * >( GetDep() );
}
SwFrmFmt * SwLayoutFrm::GetFmt()
{
return static_cast< SwFrmFmt * >( GetDep() );
}
void SwLayoutFrm::SetFrmFmt( SwFrmFmt *pNew )
{
if ( pNew != GetFmt() )
{
SwFmtChg aOldFmt( GetFmt() );
pNew->Add( this );
SwFmtChg aNewFmt( pNew );
ModifyNotification( &aOldFmt, &aNewFmt );
}
}
SwCntntFrm::SwCntntFrm( SwCntntNode * const pCntnt, SwFrm* pSib ) :
SwFrm( pCntnt, pSib ),
SwFlowFrm( (SwFrm&)*this )
{
}
SwCntntFrm::~SwCntntFrm()
{
const 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();
}
}
}
void SwCntntFrm::RegisterToNode( SwCntntNode& rNode )
{
rNode.Add( this );
}
void SwLayoutFrm::Destroy()
{
while (!aVertPosOrientFrmsFor.empty())
{
SwAnchoredObject *pObj = *aVertPosOrientFrmsFor.begin();
pObj->ClearVertPosOrientFrm();
}
assert(aVertPosOrientFrmsFor.empty());
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.
while ( pFrm->GetDrawObjs() && pFrm->GetDrawObjs()->size() )
{
const size_t nCnt = pFrm->GetDrawObjs()->size();
// #i28701#
SwAnchoredObject* pAnchoredObj = (*pFrm->GetDrawObjs())[0];
if ( pAnchoredObj->ISA(SwFlyFrm) )
{
delete pAnchoredObj;
assert(!pFrm->GetDrawObjs() || nCnt > pFrm->GetDrawObjs()->size());
}
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()->size() )
{
pFrm->GetDrawObjs()->Remove( *pAnchoredObj );
}
}
}
pFrm->Remove();
delete pFrm;
pFrm = pLower;
}
//Delete the Flys, the last one also deletes the array.
while ( GetDrawObjs() && GetDrawObjs()->size() )
{
const size_t nCnt = GetDrawObjs()->size();
// #i28701#
SwAnchoredObject* pAnchoredObj = (*GetDrawObjs())[0];
if ( pAnchoredObj->ISA(SwFlyFrm) )
{
delete pAnchoredObj;
assert(!GetDrawObjs() || nCnt > GetDrawObjs()->size());
}
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()->size() )
{
GetDrawObjs()->Remove( *pAnchoredObj );
}
}
}
}
else
{
while( pFrm )
{
SwFrm *pNxt = pFrm->GetNext();
delete pFrm;
pFrm = pNxt;
}
}
}
SwLayoutFrm::~SwLayoutFrm()
{
if (!IsRootFrm()) // ~SwRootFrm already calls Destroy!
{
Destroy();
}
}
/**
|* 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 bool bVert = IsVertical();
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 = static_cast<const 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
{
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;
}
/**
|* 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( bool bBorder ) const
{
bool bVert = IsVertical();
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() && static_cast<const SwTxtFrm*>(this)->HasPara() )
{
long nTmp = static_cast<const 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;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */