Files
libreoffice/sw/source/core/text/widorp.cxx
Michael Meeks ed40f62e64 Merge commit 'ooo/DEV300_m101' into integration/dev300_m101
Conflicts:
	starmath/inc/applicat.hxx
	starmath/inc/dialog.hxx
	starmath/inc/document.hxx
	starmath/inc/edit.hxx
	starmath/inc/format.hxx
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	starmath/qa/cppunit/version.map
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	starmath/source/mathmlexport.cxx
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	starmath/source/rect.cxx
	starmath/source/register.cxx
	starmath/source/smdetect.cxx
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	sw/source/ui/config/barcfg.cxx
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	sw/source/ui/dialog/abstract.cxx
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	sw/source/ui/docvw/SidebarWin.cxx
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	sw/source/ui/inc/envimg.hxx
	sw/source/ui/inc/envlop.hxx
	sw/source/ui/inc/frmpage.hxx
	sw/source/ui/inc/inputwin.hxx
	sw/source/ui/inc/javaedit.hxx
	sw/source/ui/inc/num.hxx
	sw/source/ui/inc/optpage.hxx
	sw/source/ui/inc/regionsw.hxx
	sw/source/ui/inc/split.hxx
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	sw/source/ui/inc/swmn_tmpl.hrc
	sw/source/ui/inc/swuiidxmrk.hxx
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	sw/source/ui/inc/toxmgr.hxx
	sw/source/ui/inc/uiitems.hxx
	sw/source/ui/inc/view.hxx
	sw/source/ui/inc/workctrl.hxx
	sw/source/ui/inc/wrap.hxx
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	sw/source/ui/misc/bookmark.cxx
	sw/source/ui/misc/docfnote.cxx
	sw/source/ui/misc/glosbib.cxx
	sw/source/ui/misc/glosdoc.cxx
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	sw/source/ui/misc/numberingtypelistbox.cxx
	sw/source/ui/misc/outline.cxx
	sw/source/ui/misc/pgfnote.cxx
	sw/source/ui/misc/pggrid.cxx
	sw/source/ui/misc/redlndlg.cxx
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	sw/source/ui/misc/swmodalredlineacceptdlg.cxx
	sw/source/ui/ribbar/conarc.cxx
	sw/source/ui/ribbar/drawbase.cxx
	sw/source/ui/ribbar/inputwin.cxx
	sw/source/ui/ribbar/inputwin.src
	sw/source/ui/ribbar/makefile.mk
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	sw/source/ui/ribbar/workctrl.cxx
	sw/source/ui/ribbar/workctrl.src
	sw/source/ui/shells/annotsh.cxx
	sw/source/ui/shells/basesh.cxx
	sw/source/ui/shells/beziersh.cxx
	sw/source/ui/shells/drawdlg.cxx
	sw/source/ui/shells/drwbassh.cxx
	sw/source/ui/shells/drwtxtex.cxx
	sw/source/ui/shells/drwtxtsh.cxx
	sw/source/ui/shells/frmsh.cxx
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	sw/source/ui/shells/makefile.mk
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	sw/source/ui/shells/textfld.cxx
	sw/source/ui/shells/textglos.cxx
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	sw/source/ui/shells/textsh1.cxx
	sw/source/ui/shells/txtattr.cxx
	sw/source/ui/shells/txtcrsr.cxx
	sw/source/ui/shells/txtnum.cxx
	sw/source/ui/table/convert.cxx
	sw/source/ui/table/instable.cxx
	sw/source/ui/table/makefile.mk
	sw/source/ui/table/swtablerep.cxx
	sw/source/ui/table/tabledlg.cxx
	sw/source/ui/table/tablemgr.cxx
	sw/source/ui/table/tablepg.hxx
	sw/source/ui/table/tautofmt.cxx
	sw/source/ui/uiview/formatclipboard.cxx
	sw/source/ui/uiview/makefile.mk
	sw/source/ui/uiview/pview.cxx
	sw/source/ui/uiview/pview.src
	sw/source/ui/uiview/scroll.cxx
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	sw/source/ui/uiview/swcli.cxx
	sw/source/ui/uiview/uivwimp.cxx
	sw/source/ui/uiview/view.cxx
	sw/source/ui/uiview/view1.cxx
	sw/source/ui/uiview/view2.cxx
	sw/source/ui/uiview/viewcoll.cxx
	sw/source/ui/uiview/viewdlg2.cxx
	sw/source/ui/uiview/viewling.cxx
	sw/source/ui/uiview/viewmdi.cxx
	sw/source/ui/uiview/viewport.cxx
	sw/source/ui/uiview/viewprt.cxx
	sw/source/ui/uiview/viewsrch.cxx
	sw/source/ui/uiview/viewtab.cxx
	sw/source/ui/uno/SwXDocumentSettings.cxx
	sw/source/ui/uno/SwXPrintPreviewSettings.cxx
	sw/source/ui/uno/SwXPrintPreviewSettings.hxx
	sw/source/ui/uno/unoatxt.cxx
	sw/source/ui/uno/unomod.cxx
	sw/source/ui/uno/unotxdoc.cxx
	sw/source/ui/uno/unotxvw.cxx
	sw/source/ui/utlui/attrdesc.cxx
	sw/source/ui/utlui/content.cxx
	sw/source/ui/utlui/glbltree.cxx
	sw/source/ui/utlui/initui.cxx
	sw/source/ui/utlui/makefile.mk
	sw/source/ui/utlui/navipi.cxx
	sw/source/ui/utlui/navipi.src
	sw/source/ui/utlui/numfmtlb.cxx
	sw/source/ui/utlui/prcntfld.cxx
	sw/source/ui/utlui/uiitems.cxx
	sw/source/ui/utlui/uitool.cxx
	sw/source/ui/utlui/unotools.cxx
	sw/source/ui/utlui/viewlayoutctrl.cxx
	sw/source/ui/utlui/zoomctrl.cxx
	sw/source/ui/vba/makefile.mk
	sw/source/ui/vba/service.cxx
	sw/source/ui/web/makefile.mk
	sw/source/ui/wrtsh/makefile.mk
	sw/source/ui/wrtsh/wrtsh1.cxx
	sw/source/ui/wrtsh/wrtsh2.cxx
	sw/source/ui/wrtsh/wrtsh4.cxx
	sw/source/ui/wrtsh/wrtundo.cxx
	sw/util/hidother.src
	sw/util/makefile.mk
	sw/util/msword.map
2011-03-14 16:51:14 +00:00

575 lines
21 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sw.hxx"
#include "hintids.hxx"
#include "layfrm.hxx"
#include "ftnboss.hxx"
#include "ndtxt.hxx"
#include "paratr.hxx"
#include <editeng/orphitem.hxx>
#include <editeng/widwitem.hxx>
#include <editeng/keepitem.hxx>
#include <editeng/spltitem.hxx>
#include <frmatr.hxx>
#include <txtftn.hxx>
#include <fmtftn.hxx>
#include <rowfrm.hxx>
#include "widorp.hxx"
#include "txtfrm.hxx"
#include "itrtxt.hxx"
#include "sectfrm.hxx" //SwSectionFrm
#include "ftnfrm.hxx"
#undef WIDOWTWIPS
/*************************************************************************
* inline IsNastyFollow()
*************************************************************************/
// Ein Follow, der auf der selben Seite steht, wie sein Master ist nasty.
inline sal_Bool IsNastyFollow( const SwTxtFrm *pFrm )
{
OSL_ENSURE( !pFrm->IsFollow() || !pFrm->GetPrev() ||
((const SwTxtFrm*)pFrm->GetPrev())->GetFollow() == pFrm,
"IsNastyFollow: Was ist denn hier los?" );
return pFrm->IsFollow() && pFrm->GetPrev();
}
/*************************************************************************
* SwTxtFrmBreak::SwTxtFrmBreak()
*************************************************************************/
SwTxtFrmBreak::SwTxtFrmBreak( SwTxtFrm *pNewFrm, const SwTwips nRst )
: nRstHeight(nRst), pFrm(pNewFrm)
{
SWAP_IF_SWAPPED( pFrm )
SWRECTFN( pFrm )
nOrigin = (pFrm->*fnRect->fnGetPrtTop)();
SwSectionFrm* pSct;
bKeep = !pFrm->IsMoveable() || IsNastyFollow( pFrm ) ||
( pFrm->IsInSct() && (pSct=pFrm->FindSctFrm())->Lower()->IsColumnFrm()
&& !pSct->MoveAllowed( pFrm ) ) ||
!pFrm->GetTxtNode()->GetSwAttrSet().GetSplit().GetValue() ||
pFrm->GetTxtNode()->GetSwAttrSet().GetKeep().GetValue();
bBreak = sal_False;
if( !nRstHeight && !pFrm->IsFollow() && pFrm->IsInFtn() && pFrm->HasPara() )
{
nRstHeight = pFrm->GetFtnFrmHeight();
nRstHeight += (pFrm->Prt().*fnRect->fnGetHeight)() -
(pFrm->Frm().*fnRect->fnGetHeight)();
if( nRstHeight < 0 )
nRstHeight = 0;
}
UNDO_SWAP( pFrm )
}
/* BP 18.6.93: Widows.
* Im Gegensatz zur ersten Implementierung werden die Widows nicht
* mehr vorausschauend berechnet, sondern erst beim Formatieren des
* gesplitteten Follows festgestellt. Im Master faellt die Widows-
* Berechnung also generell weg (nWidows wird manipuliert).
* Wenn der Follow feststellt, dass die Widowsregel zutrifft,
* verschickt er an seinen Vorgaenger ein Prepare.
* Ein besonderes Problem ergibt sich, wenn die Widows zuschlagen,
* aber im Master noch ein paar Zeilen zur Verfuegung stehen.
*
*/
/*************************************************************************
* SwTxtFrmBreak::IsInside()
*************************************************************************/
/* BP(22.07.92): Berechnung von Witwen und Waisen.
* Die Methode liefert sal_True zurueck, wenn eine dieser Regelung zutrifft.
*
* Eine Schwierigkeit gibt es im Zusammenhang mit Widows und
* unterschiedlichen Formaten zwischen Master- und Folgeframes:
* Beispiel: Wenn die erste Spalte 3cm und die zweite 4cm breit ist
* und Widows auf sagen wir 3 gesetzt ist, so ist erst bei der Formatierung
* des Follows entscheidbar, ob die Widowsbedingung einhaltbar ist oder
* nicht. Leider ist davon abhaengig, ob der Absatz als Ganzes auf die
* naechste Seite rutscht.
*/
sal_Bool SwTxtFrmBreak::IsInside( SwTxtMargin &rLine ) const
{
sal_Bool bFit = sal_False;
SWAP_IF_SWAPPED( pFrm )
SWRECTFN( pFrm )
// nOrigin is an absolut value, rLine referes to the swapped situation.
SwTwips nTmpY;
if ( pFrm->IsVertical() )
nTmpY = pFrm->SwitchHorizontalToVertical( rLine.Y() + rLine.GetLineHeight() );
else
nTmpY = rLine.Y() + rLine.GetLineHeight();
SwTwips nLineHeight = (*fnRect->fnYDiff)( nTmpY , nOrigin );
// 7455 und 6114: Raum fuer die Umrandung unten einkalkulieren.
nLineHeight += (pFrm->*fnRect->fnGetBottomMargin)();
if( nRstHeight )
bFit = nRstHeight >= nLineHeight;
else
{
// Der Frm besitzt eine Hoehe, mit der er auf die Seite passt.
SwTwips nHeight =
(*fnRect->fnYDiff)( (pFrm->GetUpper()->*fnRect->fnGetPrtBottom)(), nOrigin );
// Wenn sich alles innerhalb des bestehenden Frames abspielt,
// ist das Ergebnis sal_True;
bFit = nHeight >= nLineHeight;
if( !bFit )
{
// Die LineHeight sprengt die aktuelle Frm-Hoehe.
// Nun rufen wir ein Probe-Grow, um zu ermitteln, ob der
// Frame um den gewuenschten Bereich wachsen wuerde.
nHeight += pFrm->GrowTst( LONG_MAX );
// Das Grow() returnt die Hoehe, um die der Upper des TxtFrm
// den TxtFrm wachsen lassen wuerde.
// Der TxtFrm selbst darf wachsen wie er will.
bFit = nHeight >= nLineHeight;
}
}
UNDO_SWAP( pFrm );
return bFit;
}
/*************************************************************************
* SwTxtFrmBreak::IsBreakNow()
*************************************************************************/
sal_Bool SwTxtFrmBreak::IsBreakNow( SwTxtMargin &rLine )
{
SWAP_IF_SWAPPED( pFrm )
// bKeep ist staerker als IsBreakNow()
// Ist noch genug Platz ?
if( bKeep || IsInside( rLine ) )
bBreak = sal_False;
else
{
/* Diese Klasse geht davon aus, dass der SwTxtMargin von Top nach Bottom
* durchgearbeitet wird. Aus Performancegruenden wird in folgenden
* Faellen der Laden fuer das weitere Aufspalten dicht gemacht:
* Wenn eine einzige Zeile nicht mehr passt.
* Sonderfall: bei DummyPortions ist LineNr == 1, obwohl wir splitten
* wollen.
*/
// 6010: DropLines mit einbeziehen
sal_Bool bFirstLine = 1 == rLine.GetLineNr() && !rLine.GetPrev();
bBreak = sal_True;
if( ( bFirstLine && pFrm->GetIndPrev() )
|| ( rLine.GetLineNr() <= rLine.GetDropLines() ) )
{
bKeep = sal_True;
bBreak = sal_False;
}
else if(bFirstLine && pFrm->IsInFtn() && !pFrm->FindFtnFrm()->GetPrev())
{
SwLayoutFrm* pTmp = pFrm->FindFtnBossFrm()->FindBodyCont();
if( !pTmp || !pTmp->Lower() )
bBreak = sal_False;
}
}
UNDO_SWAP( pFrm )
return bBreak;
}
// OD 2004-02-27 #106629# - no longer inline
void SwTxtFrmBreak::SetRstHeight( const SwTxtMargin &rLine )
{
// OD, FME 2004-02-27 #106629# - consider bottom margin
SWRECTFN( pFrm )
nRstHeight = (pFrm->*fnRect->fnGetBottomMargin)();
if ( bVert )
//Badaa: 2008-04-18 * Support for Classical Mongolian Script (SCMS) joint with Jiayanmin
{
if ( pFrm->IsVertLR() )
nRstHeight = (*fnRect->fnYDiff)( pFrm->SwitchHorizontalToVertical( rLine.Y() ) , nOrigin );
else
nRstHeight += nOrigin - pFrm->SwitchHorizontalToVertical( rLine.Y() );
}
else
nRstHeight += rLine.Y() - nOrigin;
}
/*************************************************************************
* WidowsAndOrphans::WidowsAndOrphans()
*************************************************************************/
WidowsAndOrphans::WidowsAndOrphans( SwTxtFrm *pNewFrm, const SwTwips nRst,
sal_Bool bChkKeep )
: SwTxtFrmBreak( pNewFrm, nRst ), nWidLines( 0 ), nOrphLines( 0 )
{
SWAP_IF_SWAPPED( pFrm )
if( bKeep )
{
// 5652: bei Absaetzen, die zusammengehalten werden sollen und
// groesser sind als die Seite wird bKeep aufgehoben.
if( bChkKeep && !pFrm->GetPrev() && !pFrm->IsInFtn() &&
pFrm->IsMoveable() &&
( !pFrm->IsInSct() || pFrm->FindSctFrm()->MoveAllowed(pFrm) ) )
bKeep = sal_False;
//Auch bei gesetztem Keep muessen Orphans beachtet werden,
//z.B. bei verketteten Rahmen erhaelt ein Follow im letzten Rahmen ein Keep,
//da er nicht (vorwaerts) Moveable ist,
//er darf aber trotzdem vom Master Zeilen anfordern wg. der Orphanregel.
if( pFrm->IsFollow() )
nWidLines = pFrm->GetTxtNode()->GetSwAttrSet().GetWidows().GetValue();
}
else
{
const SwAttrSet& rSet = pFrm->GetTxtNode()->GetSwAttrSet();
const SvxOrphansItem &rOrph = rSet.GetOrphans();
if ( rOrph.GetValue() > 1 )
nOrphLines = rOrph.GetValue();
if ( pFrm->IsFollow() )
nWidLines = rSet.GetWidows().GetValue();
}
if ( bKeep || nWidLines || nOrphLines )
{
bool bResetFlags = false;
if ( pFrm->IsInTab() )
{
// For compatibility reasons, we disable Keep/Widows/Orphans
// inside splittable row frames:
if ( pFrm->GetNextCellLeaf( MAKEPAGE_NONE ) || pFrm->IsInFollowFlowRow() )
{
const SwFrm* pTmpFrm = pFrm->GetUpper();
while ( !pTmpFrm->IsRowFrm() )
pTmpFrm = pTmpFrm->GetUpper();
if ( static_cast<const SwRowFrm*>(pTmpFrm)->IsRowSplitAllowed() )
bResetFlags = true;
}
}
if( pFrm->IsInFtn() && !pFrm->GetIndPrev() )
{
// Innerhalb von Fussnoten gibt es gute Gruende, das Keep-Attribut und
// die Widows/Orphans abzuschalten.
SwFtnFrm *pFtn = pFrm->FindFtnFrm();
sal_Bool bFt = !pFtn->GetAttr()->GetFtn().IsEndNote();
if( !pFtn->GetPrev() &&
pFtn->FindFtnBossFrm( bFt ) != pFtn->GetRef()->FindFtnBossFrm( bFt )
&& ( !pFrm->IsInSct() || pFrm->FindSctFrm()->MoveAllowed(pFrm) ) )
{
bResetFlags = true;
}
}
if ( bResetFlags )
{
bKeep = sal_False;
nOrphLines = 0;
nWidLines = 0;
}
}
UNDO_SWAP( pFrm )
}
/*************************************************************************
* WidowsAndOrphans::FindBreak()
*************************************************************************/
/* Die Find*-Methoden suchen nicht nur, sondern stellen den SwTxtMargin auf
* die Zeile ein, wo der Absatz gebrochen werden soll und kuerzen ihn dort.
* FindBreak()
*/
sal_Bool WidowsAndOrphans::FindBreak( SwTxtFrm *pFrame, SwTxtMargin &rLine,
sal_Bool bHasToFit )
{
// OD 2004-02-25 #i16128# - Why member <pFrm> _*and*_ parameter <pFrame>??
// Thus, assertion on situation, that these are different to figure out why.
OSL_ENSURE( pFrm == pFrame, "<WidowsAndOrphans::FindBreak> - pFrm != pFrame" );
SWAP_IF_SWAPPED( pFrm )
sal_Bool bRet = sal_True;
MSHORT nOldOrphans = nOrphLines;
if( bHasToFit )
nOrphLines = 0;
rLine.Bottom();
// OD 2004-02-25 #i16128# - method renamed
if( !IsBreakNowWidAndOrp( rLine ) )
bRet = sal_False;
if( !FindWidows( pFrame, rLine ) )
{
sal_Bool bBack = sal_False;
// OD 2004-02-25 #i16128# - method renamed
while( IsBreakNowWidAndOrp( rLine ) )
{
if( rLine.PrevLine() )
bBack = sal_True;
else
break;
}
// Eigentlich werden bei HasToFit Schusterjungen (Orphans) nicht
// beruecksichtigt, wenn allerdings Dummy-Lines im Spiel sind und
// die Orphansregel verletzt wird, machen wir mal eine Ausnahme:
// Wir lassen einfach eine Dummyline zurueck und wandern mit dem Text
// komplett auf die naechste Seite/Spalte.
if( rLine.GetLineNr() <= nOldOrphans &&
rLine.GetInfo().GetParaPortion()->IsDummy() &&
( ( bHasToFit && bRet ) || IsBreakNow( rLine ) ) )
rLine.Top();
rLine.TruncLines( sal_True );
bRet = bBack;
}
nOrphLines = nOldOrphans;
UNDO_SWAP( pFrm )
return bRet;
}
/*************************************************************************
* WidowsAndOrphans::FindWidows()
*************************************************************************/
/* FindWidows positioniert den SwTxtMargin des Masters auf die umzubrechende
* Zeile, indem der Follow formatiert und untersucht wird.
* Liefert sal_True zurueck, wenn die Widows-Regelung in Kraft tritt,
* d.h. der Absatz _zusammengehalten_ werden soll !
*/
sal_Bool WidowsAndOrphans::FindWidows( SwTxtFrm *pFrame, SwTxtMargin &rLine )
{
OSL_ENSURE( ! pFrame->IsVertical() || ! pFrame->IsSwapped(),
"WidowsAndOrphans::FindWidows with swapped frame" );
if( !nWidLines || !pFrame->IsFollow() )
return sal_False;
rLine.Bottom();
// Wir koennen noch was abzwacken
SwTxtFrm *pMaster = pFrame->FindMaster();
OSL_ENSURE(pMaster, "+WidowsAndOrphans::FindWidows: Widows in a master?");
if( !pMaster )
return sal_False;
// 5156: Wenn die erste Zeile des Follows nicht passt, wird der Master
// wohl voll mit Dummies sein. In diesem Fall waere ein PREP_WIDOWS fatal.
if( pMaster->GetOfst() == pFrame->GetOfst() )
return sal_False;
// Resthoehe des Masters
SWRECTFN( pFrame )
const SwTwips nDocPrtTop = (pFrame->*fnRect->fnGetPrtTop)();
SwTwips nOldHeight;
SwTwips nTmpY = rLine.Y() + rLine.GetLineHeight();
if ( bVert )
{
nTmpY = pFrame->SwitchHorizontalToVertical( nTmpY );
nOldHeight = -(pFrame->Prt().*fnRect->fnGetHeight)();
}
else
nOldHeight = (pFrame->Prt().*fnRect->fnGetHeight)();
const SwTwips nChg = (*fnRect->fnYDiff)( nTmpY, nDocPrtTop + nOldHeight );
// Unterhalb der Widows-Schwelle...
if( rLine.GetLineNr() >= nWidLines )
{
// 8575: Follow to Master I
// Wenn der Follow *waechst*, so besteht fuer den Master die Chance,
// Zeilen entgegenzunehmen, die er vor Kurzem gezwungen war an den
// Follow abzugeben: Prepare(Need); diese Abfrage unterhalb von nChg!
// (0W, 2O, 2M, 2F) + 1F = 3M, 2F
if( rLine.GetLineNr() > nWidLines && pFrame->IsJustWidow() )
{
// Wenn der Master gelockt ist, so hat er vermutlich gerade erst
// eine Zeile an uns abgegeben, diese geben nicht zurueck, nur
// weil bei uns daraus mehrere geworden sind (z.B. durch Rahmen).
if( !pMaster->IsLocked() && pMaster->GetUpper() )
{
const SwTwips nTmpRstHeight = (pMaster->Frm().*fnRect->fnBottomDist)
( (pMaster->GetUpper()->*fnRect->fnGetPrtBottom)() );
if ( nTmpRstHeight >=
SwTwips(rLine.GetInfo().GetParaPortion()->Height() ) )
{
pMaster->Prepare( PREP_ADJUST_FRM );
pMaster->_InvalidateSize();
pMaster->InvalidatePage();
}
}
pFrame->SetJustWidow( sal_False );
}
return sal_False;
}
// 8575: Follow to Master II
// Wenn der Follow *schrumpft*, so besteht fuer den Master die Chance,
// den kompletten Orphan zu inhalieren.
// (0W, 2O, 2M, 1F) - 1F = 3M, 0F -> PREP_ADJUST_FRM
// (0W, 2O, 3M, 2F) - 1F = 2M, 2F -> PREP_WIDOWS
if( 0 > nChg && !pMaster->IsLocked() && pMaster->GetUpper() )
{
SwTwips nTmpRstHeight = (pMaster->Frm().*fnRect->fnBottomDist)
( (pMaster->GetUpper()->*fnRect->fnGetPrtBottom)() );
if( nTmpRstHeight >= SwTwips(rLine.GetInfo().GetParaPortion()->Height() ) )
{
pMaster->Prepare( PREP_ADJUST_FRM );
pMaster->_InvalidateSize();
pMaster->InvalidatePage();
pFrame->SetJustWidow( sal_False );
return sal_False;
}
}
// Master to Follow
// Wenn der Follow nach seiner Formatierung weniger Zeilen enthaelt
// als Widows, so besteht noch die Chance, einige Zeilen des Masters
// abzuzwacken. Wenn dadurch die Orphans-Regel des Masters in Kraft
// tritt muss im CalcPrep() des Master-Frame der Frame so vergroessert
// werden, dass er nicht mehr auf seine urspruengliche Seite passt.
// Wenn er noch ein paar Zeilen entbehren kann, dann muss im CalcPrep()
// ein Shrink() erfolgen, der Follow mit dem Widows rutscht dann auf
// die Seite des Masters, haelt sich aber zusammen, so dass er (endlich)
// auf die naechste Seite rutscht. - So die Theorie!
// Wir fordern nur noch ein Zeile zur Zeit an, weil eine Zeile des Masters
// bei uns durchaus mehrere Zeilen ergeben koennten.
// Dafuer behaelt CalcFollow solange die Kontrolle, bis der Follow alle
// notwendigen Zeilen bekommen hat.
MSHORT nNeed = 1; // frueher: nWidLines - rLine.GetLineNr();
// Special case: Master cannot give lines to follow
// --> FME 2008-09-16 #i91421#
if ( !pMaster->GetIndPrev() )
{
sal_uLong nLines = pMaster->GetThisLines();
if(nLines == 0 && pMaster->HasPara())
{
const SwParaPortion *pMasterPara = pMaster->GetPara();
if(pMasterPara && pMasterPara->GetNext())
nLines = 2;
}
if( nLines <= nNeed )
return sal_False;
}
pMaster->Prepare( PREP_WIDOWS, (void*)&nNeed );
return sal_True;
}
/*************************************************************************
* WidowsAndOrphans::WouldFit()
*************************************************************************/
sal_Bool WidowsAndOrphans::WouldFit( SwTxtMargin &rLine, SwTwips &rMaxHeight, sal_Bool bTst )
{
// Here it does not matter, if pFrm is swapped or not.
// IsInside() takes care for itself
// Wir erwarten, dass rLine auf der letzten Zeile steht!!
OSL_ENSURE( !rLine.GetNext(), "WouldFit: aLine::Bottom missed!" );
MSHORT nLineCnt = rLine.GetLineNr();
// Erstmal die Orphansregel und den Initialenwunsch erfuellen ...
const MSHORT nMinLines = Max( GetOrphansLines(), rLine.GetDropLines() );
if ( nLineCnt < nMinLines )
return sal_False;
rLine.Top();
SwTwips nLineSum = rLine.GetLineHeight();
while( nMinLines > rLine.GetLineNr() )
{
if( !rLine.NextLine() )
return sal_False;
nLineSum += rLine.GetLineHeight();
}
// Wenn wir jetzt schon nicht mehr passen ...
if( !IsInside( rLine ) )
return sal_False;
// Jetzt noch die Widows-Regel ueberpruefen
if( !nWidLines && !pFrm->IsFollow() )
{
// I.A. brauchen Widows nur ueberprueft werden, wenn wir ein Follow
// sind. Bei WouldFit muss aber auch fuer den Master die Regel ueber-
// prueft werden, weil wir ja gerade erst die Trennstelle ermitteln.
// Im Ctor von WidowsAndOrphans wurde nWidLines aber nur fuer Follows
// aus dem AttrSet ermittelt, deshalb holen wir es hier nach:
const SwAttrSet& rSet = pFrm->GetTxtNode()->GetSwAttrSet();
nWidLines = rSet.GetWidows().GetValue();
}
// Sind nach Orphans/Initialen noch genug Zeilen fuer die Widows uebrig?
// #111937#: If we are currently doing a test formatting, we may not
// consider the widows rule for two reasons:
// 1. The columns may have different widths.
// Widow lines would have wrong width.
// 2. Test formatting is only done up to the given space.
// we do not have any lines for widows at all.
if( bTst || nLineCnt - nMinLines >= GetWidowsLines() )
{
if( rMaxHeight >= nLineSum )
{
rMaxHeight -= nLineSum;
return sal_True;
}
}
return sal_False;
}
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