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diff --git a/sw/source/core/inc/sectfrm.hxx b/sw/source/core/inc/sectfrm.hxx
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+++ b/sw/source/core/inc/sectfrm.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef INCLUDED_SW_SOURCE_CORE_INC_SECTFRM_HXX
+#define INCLUDED_SW_SOURCE_CORE_INC_SECTFRM_HXX
+
+#include "layfrm.hxx"
+#include "flowfrm.hxx"
+
+class SwSection;
+class SwSectionFormat;
+class SwAttrSetChg;
+class SwFootnoteContFrame;
+class SwLayouter;
+
+enum class SwFindMode
+{
+    None = 0, EndNote = 1, LastCnt = 2, MyLast = 4
+};
+
+class SwSectionFrame: public SwLayoutFrame, public SwFlowFrame
+{
+    SwSection* m_pSection;
+    bool m_bFootnoteAtEnd; // footnotes at the end of section
+    bool m_bEndnAtEnd; // endnotes at the end of section
+    bool m_bContentLock; // content locked
+    bool m_bOwnFootnoteNum; // special numbering of footnotes
+    bool m_bFootnoteLock; // ftn, don't leave this section bwd
+
+    void UpdateAttr_( const SfxPoolItem*, const SfxPoolItem*, sal_uInt8 &,
+                      SwAttrSetChg *pa = nullptr, SwAttrSetChg *pb = nullptr );
+    void Cut_( bool bRemove );
+    // Is there a FootnoteContainer?
+    // An empty sectionfrm without FootnoteCont is superfluous
+    bool IsSuperfluous() const { return !ContainsAny() && !ContainsFootnoteCont(); }
+    void CalcFootnoteAtEndFlag();
+    void CalcEndAtEndFlag();
+    const SwSectionFormat* GetEndSectFormat_() const;
+    bool IsEndnoteAtMyEnd() const;
+
+    virtual void DestroyImpl() override;
+    virtual ~SwSectionFrame() override;
+
+protected:
+    virtual void MakeAll(vcl::RenderContext* pRenderContext) override;
+    virtual bool ShouldBwdMoved( SwLayoutFrame *pNewUpper, bool &rReformat ) override;
+    virtual void Format( vcl::RenderContext* pRenderContext, const SwBorderAttrs *pAttrs = nullptr ) override;
+    virtual void Modify( const SfxPoolItem*, const SfxPoolItem* ) override;
+    virtual void SwClientNotify( const SwModify&, const SfxHint& ) override;
+
+public:
+    SwSectionFrame( SwSection &, SwFrame* ); // Content is not created!
+    SwSectionFrame( SwSectionFrame &, bool bMaster ); // _ONLY_ for creating Master/Follows!
+
+    void Init();
+    virtual void CheckDirection( bool bVert ) override;
+
+    virtual void PaintSubsidiaryLines( const SwPageFrame*, const SwRect& ) const override;
+
+    virtual void Cut() override;
+    virtual void Paste( SwFrame* pParent, SwFrame* pSibling = nullptr ) override;
+
+    inline const SwSectionFrame *GetFollow() const;
+    inline       SwSectionFrame *GetFollow();
+    SwSectionFrame* FindMaster() const;
+
+                 SwContentFrame *FindLastContent( SwFindMode nMode = SwFindMode::None );
+    inline const SwContentFrame *FindLastContent() const;
+    SwSection* GetSection() { return m_pSection; }
+    const SwSection* GetSection() const { return m_pSection; }
+    void ColLock()       { mbColLocked = true; }
+    void ColUnlock()     { mbColLocked = false; }
+
+    void CalcFootnoteContent();
+    void SimpleFormat();
+    bool IsDescendantFrom( const SwSectionFormat* pSect ) const;
+    bool HasToBreak( const SwFrame* pFrame ) const;
+    void MergeNext( SwSectionFrame* pNxt );
+
+    /**
+     * Splits the SectionFrame surrounding the pFrame up in two parts:
+     * pFrame and the start of the 2nd part
+     */
+    bool SplitSect( SwFrame* pFrame, bool bApres );
+    void DelEmpty( bool bRemove ); // Like Cut(), except for that Follow chaining is maintained
+    SwFootnoteContFrame* ContainsFootnoteCont( const SwFootnoteContFrame* pCont = nullptr ) const;
+    bool Growable() const;
+    SwTwips Shrink_( SwTwips, bool bTst );
+    SwTwips Grow_  ( SwTwips, bool bTst );
+
+    /**
+     * A sectionfrm has to maximize, if he has a follow or a ftncontainer at
+     * the end of the page. A superfluous follow will be ignored,
+     * if bCheckFollow is set.
+     */
+    bool ToMaximize( bool bCheckFollow ) const;
+    bool ToMaximize_() const {
+        if( !m_pSection ) return false;
+        return ToMaximize( false );
+    }
+    bool MoveAllowed( const SwFrame* ) const;
+    bool CalcMinDiff( SwTwips& rMinDiff ) const;
+
+    /**
+     * Returns the size delta that the section would like to be
+     * greater if it has undersized TextFrames in it.
+     *
+     * The return value is > 0 for undersized Frames, or 0 otherwise.
+     *
+     * If necessary the undersized-flag is corrected.
+     * We need this in the FormatWidthCols to "deflate" columns there.
+     */
+    SwTwips Undersize();
+    SwTwips CalcUndersize() const;
+
+    /// Adapt size to surroundings
+    void CheckClipping( bool bGrow, bool bMaximize );
+
+    void InvalidateFootnotePos();
+    void CollectEndnotes( SwLayouter* pLayouter );
+    const SwSectionFormat* GetEndSectFormat() const {
+        if( IsEndnAtEnd() ) return GetEndSectFormat_();
+        return nullptr;
+    }
+
+    static void MoveContentAndDelete( SwSectionFrame* pDel, bool bSave );
+
+    bool IsBalancedSection() const;
+
+    virtual void dumpAsXmlAttributes(xmlTextWriterPtr writer) const override;
+
+    bool IsFootnoteAtEnd() const { return m_bFootnoteAtEnd; }
+    bool IsEndnAtEnd() const { return m_bEndnAtEnd;   }
+    bool IsAnyNoteAtEnd() const { return m_bFootnoteAtEnd || m_bEndnAtEnd; }
+
+    void SetContentLock( bool bNew ) { m_bContentLock = bNew; }
+    bool IsContentLocked() const { return m_bContentLock; }
+
+    bool IsOwnFootnoteNum() const { return m_bOwnFootnoteNum; }
+
+    void SetFootnoteLock( bool bNew ) { m_bFootnoteLock = bNew; }
+    bool IsFootnoteLock() const { return m_bFootnoteLock; }
+};
+
+inline const SwSectionFrame *SwSectionFrame::GetFollow() const
+{
+    return static_cast<const SwSectionFrame*>(SwFlowFrame::GetFollow());
+}
+inline SwSectionFrame *SwSectionFrame::GetFollow()
+{
+    return static_cast<SwSectionFrame*>(SwFlowFrame::GetFollow());
+}
+inline const SwContentFrame *SwSectionFrame::FindLastContent() const
+{
+    return const_cast<SwSectionFrame*>(this)->FindLastContent();
+}
+
+#endif // INCLUDED_SW_SOURCE_CORE_INC_SECTFRM_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */