Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 720 insertions, 0 deletions

diff --git a/sw/source/core/undo/undobj1.cxx b/sw/source/core/undo/undobj1.cxx
new file mode 100644
index 0000000000..f0430b965b
--- /dev/null
+++ b/sw/source/core/undo/undobj1.cxx
@@ -0,0 +1,720 @@
+/* -*- 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 <libxml/xmlwriter.h>
+
+#include <svl/itemiter.hxx>
+#include <svx/svdundo.hxx>
+#include <osl/diagnose.h>
+#include <hintids.hxx>
+#include <hints.hxx>
+#include <fmtflcnt.hxx>
+#include <fmtanchr.hxx>
+#include <fmtcntnt.hxx>
+#include <txtflcnt.hxx>
+#include <frmfmt.hxx>
+#include <UndoCore.hxx>
+#include <rolbck.hxx>
+#include <doc.hxx>
+#include <IDocumentLayoutAccess.hxx>
+#include <rootfrm.hxx>
+#include <swundo.hxx>
+#include <pam.hxx>
+#include <mvsave.hxx>
+#include <ndtxt.hxx>
+#include <ndole.hxx>
+#include <frameformats.hxx>
+#include <svx/svdobj.hxx>
+
+SwUndoFlyBase::SwUndoFlyBase( SwFrameFormat* pFormat, SwUndoId nUndoId )
+    : SwUndo(nUndoId, pFormat->GetDoc())
+    , m_pFrameFormat(pFormat)
+    , m_nNodePagePos(0)
+    , m_nContentPos(0)
+    , m_nRndId(RndStdIds::FLY_AT_PARA)
+    , m_bDelFormat(false)
+{
+}
+
+SwUndoFlyBase::~SwUndoFlyBase()
+{
+    if( m_bDelFormat )       // delete during an Undo?
+    {
+        if (const auto& pTextBoxes = m_pFrameFormat->GetOtherTextBoxFormats())
+        {
+            // Clear and unregister before release.
+            if (m_pFrameFormat->Which() == RES_FLYFRMFMT)
+                pTextBoxes->DelTextBox(m_pFrameFormat);
+
+            if (m_pFrameFormat->Which() == RES_DRAWFRMFMT)
+                pTextBoxes->ClearAll();
+
+            // clear that before delete
+            m_pFrameFormat->SetOtherTextBoxFormats(nullptr);
+        }
+        delete m_pFrameFormat;
+    }
+}
+
+void SwUndoFlyBase::dumpAsXml(xmlTextWriterPtr pWriter) const
+{
+    (void)xmlTextWriterStartElement(pWriter, BAD_CAST("SwUndoFlyBase"));
+    (void)xmlTextWriterWriteAttribute(pWriter, BAD_CAST("m_nNodePagePos"),
+                                BAD_CAST(OString::number(sal_Int32(m_nNodePagePos)).getStr()));
+    (void)xmlTextWriterWriteAttribute(pWriter, BAD_CAST("m_nContentPos"),
+                                BAD_CAST(OString::number(m_nContentPos).getStr()));
+    (void)xmlTextWriterWriteAttribute(pWriter, BAD_CAST("m_nRndId"),
+                                BAD_CAST(OString::number(static_cast<int>(m_nRndId)).getStr()));
+    (void)xmlTextWriterWriteAttribute(pWriter, BAD_CAST("m_bDelFormat"),
+                                BAD_CAST(OString::boolean(m_bDelFormat).getStr()));
+
+    SwUndo::dumpAsXml(pWriter);
+    SwUndoSaveSection::dumpAsXml(pWriter);
+
+    if (m_pFrameFormat)
+    {
+        m_pFrameFormat->dumpAsXml(pWriter);
+    }
+
+    (void)xmlTextWriterEndElement(pWriter);
+}
+
+void SwUndoFlyBase::InsFly(::sw::UndoRedoContext & rContext, bool bShowSelFrame)
+{
+    SwDoc *const pDoc = & rContext.GetDoc();
+
+    // add again into array
+    sw::SpzFrameFormats& rFlyFormats = *pDoc->GetSpzFrameFormats();
+    rFlyFormats.push_back( static_cast<sw::SpzFrameFormat*>(m_pFrameFormat));
+
+    // OD 26.06.2003 #108784# - insert 'master' drawing object into drawing page
+    if ( RES_DRAWFRMFMT == m_pFrameFormat->Which() )
+        m_pFrameFormat->CallSwClientNotify(sw::DrawFrameFormatHint(sw::DrawFrameFormatHintId::PREP_INSERT_FLY));
+
+    SwFormatAnchor aAnchor( m_nRndId );
+
+    if (RndStdIds::FLY_AT_PAGE == m_nRndId)
+    {
+        aAnchor.SetPageNum( o3tl::narrowing<sal_uInt16>(sal_Int32(m_nNodePagePos)) );
+    }
+    else
+    {
+        SwPosition aNewPos(*pDoc->GetNodes()[m_nNodePagePos]);
+        if ((RndStdIds::FLY_AS_CHAR == m_nRndId) || (RndStdIds::FLY_AT_CHAR == m_nRndId))
+        {
+            aNewPos.SetContent( m_nContentPos );
+        }
+        aAnchor.SetAnchor( &aNewPos );
+    }
+
+    m_pFrameFormat->SetFormatAttr( aAnchor );     // reset anchor
+
+    if( RES_DRAWFRMFMT != m_pFrameFormat->Which() )
+    {
+        // get Content and reset ContentAttribute
+        SwNodeIndex aIdx( pDoc->GetNodes() );
+        RestoreSection( pDoc, &aIdx, SwFlyStartNode );
+        m_pFrameFormat->SetFormatAttr( SwFormatContent( aIdx.GetNode().GetStartNode() ));
+    }
+
+    // Set InContentAttribute not until there is content!
+    // Otherwise the layout would format the Fly beforehand but would not find
+    // content; this happened with graphics from the internet.
+    if (RndStdIds::FLY_AS_CHAR == m_nRndId)
+    {
+        // there must be at least the attribute in a TextNode
+        SwContentNode* pCNd = aAnchor.GetAnchorNode()->GetContentNode();
+        OSL_ENSURE( pCNd->IsTextNode(), "no Text Node at position." );
+        SwFormatFlyCnt aFormat( m_pFrameFormat );
+        pCNd->GetTextNode()->InsertItem(aFormat, m_nContentPos, m_nContentPos, SetAttrMode::NOHINTEXPAND);
+    }
+
+    if (m_pFrameFormat->GetOtherTextBoxFormats())
+    {
+        // recklessly assume that this thing will live longer than the
+        // SwUndoFlyBase - not sure what could be done if that isn't the case...
+        m_pFrameFormat->GetOtherTextBoxFormats()->GetOwnerShape()->SetOtherTextBoxFormats(
+            m_pFrameFormat->GetOtherTextBoxFormats());
+
+        SdrObject* pSdrObject
+            = m_pFrameFormat->GetOtherTextBoxFormats()->GetOwnerShape()->FindSdrObject();
+        if (pSdrObject && m_pFrameFormat->Which() == RES_FLYFRMFMT)
+            m_pFrameFormat->GetOtherTextBoxFormats()->AddTextBox(pSdrObject, m_pFrameFormat);
+
+        if (m_pFrameFormat->GetOtherTextBoxFormats()->GetOwnerShape()->Which() == RES_DRAWFRMFMT)
+        {
+
+            if (pSdrObject)
+            {
+                // Make sure the old UNO wrapper is no longer cached after changing the shape +
+                // textframe pair. Otherwise we would have a wrapper which doesn't know about its
+                // textframe, even if it's there.
+                pSdrObject->setUnoShape(nullptr);
+            }
+        }
+        if (m_pFrameFormat->Which() == RES_FLYFRMFMT)
+        {
+            SwFrameFormat* pShapeFormat = m_pFrameFormat->GetOtherTextBoxFormats()->GetOwnerShape();
+            pShapeFormat->SetFormatAttr(m_pFrameFormat->GetContent());
+        }
+    }
+
+    m_pFrameFormat->MakeFrames();
+
+    if( bShowSelFrame )
+    {
+        rContext.SetSelections(m_pFrameFormat, nullptr);
+    }
+
+    if( GetHistory() )
+        GetHistory()->Rollback( pDoc );
+
+    switch( m_nRndId )
+    {
+    case RndStdIds::FLY_AS_CHAR:
+    case RndStdIds::FLY_AT_CHAR:
+        {
+            const SwFormatAnchor& rAnchor = m_pFrameFormat->GetAnchor();
+            m_nNodePagePos = rAnchor.GetAnchorNode()->GetIndex();
+            m_nContentPos = rAnchor.GetAnchorContentOffset();
+        }
+        break;
+    case RndStdIds::FLY_AT_PARA:
+    case RndStdIds::FLY_AT_FLY:
+        {
+            const SwFormatAnchor& rAnchor = m_pFrameFormat->GetAnchor();
+            m_nNodePagePos = rAnchor.GetAnchorNode()->GetIndex();
+        }
+        break;
+    case RndStdIds::FLY_AT_PAGE:
+        break;
+    default: break;
+    }
+    m_bDelFormat =  false;
+}
+
+void SwUndoFlyBase::DelFly( SwDoc* pDoc )
+{
+    m_bDelFormat = true;                 // delete Format in DTOR
+    m_pFrameFormat->DelFrames();                 // destroy Frames
+
+    if (m_pFrameFormat->GetOtherTextBoxFormats())
+    {   // tdf#108867 clear that pointer
+        m_pFrameFormat->GetOtherTextBoxFormats()->GetOwnerShape()->SetOtherTextBoxFormats(nullptr);
+    }
+
+    // all Uno objects should now log themselves off
+    m_pFrameFormat->RemoveAllUnos();
+
+    if ( RES_DRAWFRMFMT != m_pFrameFormat->Which() )
+    {
+        // if there is content than save it
+        const SwFormatContent& rContent = m_pFrameFormat->GetContent();
+        OSL_ENSURE( rContent.GetContentIdx(), "Fly without content" );
+
+        SaveSection( *rContent.GetContentIdx() );
+        const_cast<SwFormatContent&>(rContent).SetNewContentIdx( nullptr );
+    }
+    // OD 02.07.2003 #108784# - remove 'master' drawing object from drawing page
+    else
+        m_pFrameFormat->CallSwClientNotify(sw::DrawFrameFormatHint(sw::DrawFrameFormatHintId::PREP_DELETE_FLY));
+
+    const SwFormatAnchor& rAnchor = m_pFrameFormat->GetAnchor();
+    SwNode* pAnchorNode = rAnchor.GetAnchorNode();
+    // The positions in Nodes array got shifted.
+    m_nRndId = rAnchor.GetAnchorId();
+    if (RndStdIds::FLY_AS_CHAR == m_nRndId)
+    {
+        m_nNodePagePos = pAnchorNode->GetIndex();
+        m_nContentPos = rAnchor.GetAnchorContentOffset();
+        SwTextNode *const pTextNd = pAnchorNode->GetTextNode();
+        OSL_ENSURE( pTextNd, "No Textnode found" );
+        SwTextFlyCnt* const pAttr = static_cast<SwTextFlyCnt*>(
+            pTextNd->GetTextAttrForCharAt( m_nContentPos, RES_TXTATR_FLYCNT ) );
+        // attribute is still in TextNode, delete
+        if( pAttr && pAttr->GetFlyCnt().GetFrameFormat() == m_pFrameFormat )
+        {
+            // Pointer to 0, do not delete
+            const_cast<SwFormatFlyCnt&>(pAttr->GetFlyCnt()).SetFlyFormat();
+            pTextNd->EraseText( *rAnchor.GetContentAnchor(), 1 );
+        }
+    }
+    else if (RndStdIds::FLY_AT_CHAR == m_nRndId)
+    {
+        m_nNodePagePos = pAnchorNode->GetIndex();
+        m_nContentPos = rAnchor.GetAnchorContentOffset();
+    }
+    else if ((RndStdIds::FLY_AT_PARA == m_nRndId) || (RndStdIds::FLY_AT_FLY == m_nRndId))
+    {
+        m_nNodePagePos = pAnchorNode->GetIndex();
+    }
+    else
+    {
+        m_nNodePagePos = SwNodeOffset(rAnchor.GetPageNum());
+    }
+
+    m_pFrameFormat->ResetFormatAttr( RES_ANCHOR );        // delete anchor
+
+    // delete from array
+    sw::SpzFrameFormats& rFlyFormats = *pDoc->GetSpzFrameFormats();
+    rFlyFormats.erase(static_cast<sw::SpzFrameFormat*>(m_pFrameFormat));
+}
+
+SwUndoInsLayFormat::SwUndoInsLayFormat( SwFrameFormat* pFormat, SwNodeOffset nNodeIdx, sal_Int32 nCntIdx )
+    : SwUndoFlyBase( pFormat, RES_DRAWFRMFMT == pFormat->Which() ?
+                                            SwUndoId::INSDRAWFMT : SwUndoId::INSLAYFMT ),
+    mnCursorSaveIndexPara( nNodeIdx ), mnCursorSaveIndexPos( nCntIdx )
+{
+    const SwFormatAnchor& rAnchor = m_pFrameFormat->GetAnchor();
+    m_nRndId = rAnchor.GetAnchorId();
+    m_bDelFormat = false;
+    // note: SwUndoInsLayFormat is called with the content being fully inserted
+    // from most places but with only an empty content section from
+    // CopyLayoutFormat(); it's not necessary here to init m_nNodePagePos
+    // because Undo will do it.
+}
+
+SwUndoInsLayFormat::~SwUndoInsLayFormat()
+{
+}
+
+void SwUndoInsLayFormat::UndoImpl(::sw::UndoRedoContext & rContext)
+{
+    SwDoc & rDoc(rContext.GetDoc());
+    const SwFormatContent& rContent = m_pFrameFormat->GetContent();
+    if( rContent.GetContentIdx() )  // no content
+    {
+        assert(&rContent.GetContentIdx()->GetNodes() == &rDoc.GetNodes());
+        if( mnCursorSaveIndexPara > SwNodeOffset(0) )
+        {
+            SwTextNode *const pNode =
+                rDoc.GetNodes()[mnCursorSaveIndexPara]->GetTextNode();
+            if( pNode )
+            {
+                SwNodeIndex aIdx( rDoc.GetNodes(),
+                        rContent.GetContentIdx()->GetIndex() );
+                SwNodeIndex aEndIdx( rDoc.GetNodes(),
+                        aIdx.GetNode().EndOfSectionIndex() );
+                SwPosition aPos( *pNode, mnCursorSaveIndexPos );
+                // don't delete bookmarks here, DelFly() will save them in history
+                ::PaMCorrAbs(SwPaM(aIdx, aEndIdx), aPos);
+                // TODO: is aPos actually a sensible pos for e.g. SwXText* ?
+            }
+        }
+    }
+    DelFly(& rDoc);
+}
+
+void SwUndoInsLayFormat::RedoImpl(::sw::UndoRedoContext & rContext)
+{
+    InsFly(rContext);
+}
+
+void SwUndoInsLayFormat::RepeatImpl(::sw::RepeatContext & rContext)
+{
+    SwDoc *const pDoc = & rContext.GetDoc();
+    // get anchor and reset it
+    SwFormatAnchor aAnchor( m_pFrameFormat->GetAnchor() );
+    if ((RndStdIds::FLY_AT_PARA == aAnchor.GetAnchorId()) ||
+        (RndStdIds::FLY_AT_CHAR == aAnchor.GetAnchorId()) ||
+        (RndStdIds::FLY_AS_CHAR == aAnchor.GetAnchorId()))
+    {
+        SwPosition aPos( *rContext.GetRepeatPaM().GetPoint() );
+        aAnchor.SetAnchor( &aPos );
+    }
+    else if( RndStdIds::FLY_AT_FLY == aAnchor.GetAnchorId() )
+    {
+        SwStartNode const*const pSttNd =
+            rContext.GetRepeatPaM().GetPointNode().FindFlyStartNode();
+        if( pSttNd )
+        {
+            SwPosition aPos( *pSttNd );
+            aAnchor.SetAnchor( &aPos );
+        }
+        else
+        {
+            return ;
+        }
+    }
+    else if (RndStdIds::FLY_AT_PAGE == aAnchor.GetAnchorId())
+    {
+        aAnchor.SetPageNum( pDoc->getIDocumentLayoutAccess().GetCurrentLayout()->GetCurrPage( &rContext.GetRepeatPaM() ));
+    }
+    else {
+        OSL_FAIL( "What kind of anchor is this?" );
+    }
+
+    (void) pDoc->getIDocumentLayoutAccess().CopyLayoutFormat( *m_pFrameFormat, aAnchor, true, true );
+}
+
+OUString SwUndoInsLayFormat::GetComment() const
+{
+    OUString aResult;
+
+    // HACK: disable caching:
+    // the SfxUndoManager calls GetComment() too early: the pFrameFormat does not
+    // have a SwDrawContact yet, so it will fall back to SwUndo::GetComment(),
+    // which sets pComment to a wrong value.
+//    if (! pComment)
+    if ((true))
+    {
+        /*
+          If frame format is present and has an SdrObject use the undo
+          comment of the SdrObject. Otherwise use the default comment.
+        */
+        bool bDone = false;
+        if (m_pFrameFormat)
+        {
+            const SdrObject * pSdrObj = m_pFrameFormat->FindSdrObject();
+            if ( pSdrObj )
+            {
+                aResult = SdrUndoNewObj::GetComment( *pSdrObj );
+                bDone = true;
+            }
+        }
+
+        if (! bDone)
+            aResult = SwUndo::GetComment();
+    }
+    else
+        aResult = *maComment;
+
+    return aResult;
+}
+
+static SwUndoId
+lcl_GetSwUndoId(SwFrameFormat const *const pFrameFormat)
+{
+    if (RES_DRAWFRMFMT != pFrameFormat->Which())
+    {
+        const SwFormatContent& rContent = pFrameFormat->GetContent();
+        OSL_ENSURE( rContent.GetContentIdx(), "Fly without content" );
+
+        SwNodeIndex firstNode(*rContent.GetContentIdx(), 1);
+        SwNoTextNode *const pNoTextNode(firstNode.GetNode().GetNoTextNode());
+        if (pNoTextNode && pNoTextNode->IsGrfNode())
+        {
+            return SwUndoId::DELGRF;
+        }
+        else if (pNoTextNode && pNoTextNode->IsOLENode())
+        {
+            // surprisingly not SwUndoId::DELOLE, which does not seem to work
+            return SwUndoId::DELETE;
+        }
+    }
+    return SwUndoId::DELLAYFMT;
+}
+
+SwUndoDelLayFormat::SwUndoDelLayFormat( SwFrameFormat* pFormat )
+    : SwUndoFlyBase( pFormat, lcl_GetSwUndoId(pFormat) )
+    , m_bShowSelFrame( true )
+{
+    SwDoc* pDoc = pFormat->GetDoc();
+    DelFly( pDoc );
+}
+
+SwRewriter SwUndoDelLayFormat::GetRewriter() const
+{
+    SwRewriter aRewriter;
+
+    SwDoc * pDoc = m_pFrameFormat->GetDoc();
+
+    if (pDoc)
+    {
+        const SwNodeIndex* pIdx = GetMvSttIdx();
+        if( SwNodeOffset(1) == GetMvNodeCnt() && pIdx)
+        {
+            SwNode *const pNd = & pIdx->GetNode();
+
+            if ( pNd->IsNoTextNode() && pNd->IsOLENode())
+            {
+                SwOLENode * pOLENd = pNd->GetOLENode();
+
+                aRewriter.AddRule(UndoArg1, pOLENd->GetDescription());
+            }
+        }
+    }
+
+    return aRewriter;
+}
+
+void SwUndoDelLayFormat::UndoImpl(::sw::UndoRedoContext & rContext)
+{
+    InsFly( rContext, m_bShowSelFrame );
+}
+
+void SwUndoDelLayFormat::RedoImpl(::sw::UndoRedoContext & rContext)
+{
+    SwDoc & rDoc(rContext.GetDoc());
+    const SwFormatContent& rContent = m_pFrameFormat->GetContent();
+    if( rContent.GetContentIdx() )  // no content
+    {
+        RemoveIdxFromSection(rDoc, rContent.GetContentIdx()->GetIndex());
+    }
+
+    DelFly(& rDoc);
+}
+
+void SwUndoDelLayFormat::RedoForRollback()
+{
+    const SwFormatContent& rContent = m_pFrameFormat->GetContent();
+    if( rContent.GetContentIdx() )  // no content
+        RemoveIdxFromSection( *m_pFrameFormat->GetDoc(),
+                                rContent.GetContentIdx()->GetIndex() );
+
+    DelFly( m_pFrameFormat->GetDoc() );
+}
+
+SwUndoSetFlyFormat::SwUndoSetFlyFormat( SwFrameFormat& rFlyFormat, const SwFrameFormat& rNewFrameFormat )
+    : SwUndo( SwUndoId::SETFLYFRMFMT, rFlyFormat.GetDoc() ), SwClient( &rFlyFormat ), m_pFrameFormat( &rFlyFormat ),
+    m_DerivedFromFormatName( rFlyFormat.IsDefault() ? "" : rFlyFormat.DerivedFrom()->GetName() ),
+    m_NewFormatName( rNewFrameFormat.GetName() ),
+    m_oItemSet( std::in_place, *rFlyFormat.GetAttrSet().GetPool(),
+                rFlyFormat.GetAttrSet().GetRanges() ),
+    m_nOldNode( 0 ), m_nNewNode( 0 ),
+    m_nOldContent( 0 ), m_nNewContent( 0 ),
+    m_nOldAnchorType( RndStdIds::FLY_AT_PARA ), m_nNewAnchorType( RndStdIds::FLY_AT_PARA ), m_bAnchorChanged( false )
+{
+}
+
+SwRewriter SwUndoSetFlyFormat::GetRewriter() const
+{
+    SwRewriter aRewriter;
+
+    aRewriter.AddRule(UndoArg1, m_NewFormatName);
+
+    return aRewriter;
+}
+
+SwUndoSetFlyFormat::~SwUndoSetFlyFormat()
+{
+}
+
+void SwUndoSetFlyFormat::GetAnchor( SwFormatAnchor& rAnchor,
+                                SwNodeOffset nNode, sal_Int32 nContent )
+{
+    RndStdIds nAnchorTyp = rAnchor.GetAnchorId();
+    if (RndStdIds::FLY_AT_PAGE != nAnchorTyp)
+    {
+        SwNode* pNd = m_pFrameFormat->GetDoc()->GetNodes()[ nNode ];
+
+        if( RndStdIds::FLY_AT_FLY == nAnchorTyp
+                ? ( !pNd->IsStartNode() || SwFlyStartNode !=
+                    static_cast<SwStartNode*>(pNd)->GetStartNodeType() )
+                : !pNd->IsTextNode() )
+        {
+            pNd = nullptr;    // invalid position
+        }
+        else
+        {
+            SwPosition aPos( *pNd );
+            if ((RndStdIds::FLY_AS_CHAR == nAnchorTyp) ||
+                (RndStdIds::FLY_AT_CHAR == nAnchorTyp))
+            {
+                if (nContent > pNd->GetTextNode()->GetText().getLength())
+                {
+                    pNd = nullptr;    // invalid position
+                }
+                else
+                {
+                    aPos.SetContent(nContent);
+                }
+            }
+            if ( pNd )
+            {
+                rAnchor.SetAnchor( &aPos );
+            }
+        }
+
+        if( !pNd )
+        {
+            // invalid position - assign first page
+            rAnchor.SetType( RndStdIds::FLY_AT_PAGE );
+            rAnchor.SetPageNum( 1 );
+        }
+    }
+    else
+        rAnchor.SetPageNum( nContent );
+}
+
+void SwUndoSetFlyFormat::UndoImpl(::sw::UndoRedoContext & rContext)
+{
+    SwDoc & rDoc = rContext.GetDoc();
+
+    // Is the new Format still existent?
+    SwFrameFormat* pDerivedFromFrameFormat = rDoc.FindFrameFormatByName(m_DerivedFromFormatName);
+    if (!pDerivedFromFrameFormat)
+        return;
+
+    if( m_bAnchorChanged )
+        m_pFrameFormat->DelFrames();
+
+    if( m_pFrameFormat->DerivedFrom() != pDerivedFromFrameFormat)
+        m_pFrameFormat->SetDerivedFrom(pDerivedFromFrameFormat);
+
+    SfxItemIter aIter( *m_oItemSet );
+    for (const SfxPoolItem* pItem = aIter.GetCurItem(); pItem; pItem = aIter.NextItem())
+    {
+        if( IsInvalidItem( pItem ))
+            m_pFrameFormat->ResetFormatAttr( m_oItemSet->GetWhichByOffset(
+                                    aIter.GetCurPos() ));
+        else
+            m_pFrameFormat->SetFormatAttr( *pItem );
+    }
+
+    if( m_bAnchorChanged )
+    {
+        const SwFormatAnchor& rOldAnch = m_pFrameFormat->GetAnchor();
+        if (RndStdIds::FLY_AS_CHAR == rOldAnch.GetAnchorId())
+        {
+            // With InContents it's tricky: the text attribute needs to be
+            // deleted. Unfortunately, this not only destroys the Frames but
+            // also the format. To prevent that, first detach the
+            // connection between attribute and format.
+            SwNode *pAnchorNode = rOldAnch.GetAnchorNode();
+            SwTextNode *pTextNode = pAnchorNode->GetTextNode();
+            OSL_ENSURE( pTextNode->HasHints(), "Missing FlyInCnt-Hint." );
+            const sal_Int32 nIdx = rOldAnch.GetAnchorContentOffset();
+            SwTextAttr * pHint = pTextNode->GetTextAttrForCharAt(
+                    nIdx, RES_TXTATR_FLYCNT );
+            assert(pHint && "Missing Hint.");
+            OSL_ENSURE( pHint->Which() == RES_TXTATR_FLYCNT,
+                        "Missing FlyInCnt-Hint." );
+            OSL_ENSURE( pHint->GetFlyCnt().GetFrameFormat() == m_pFrameFormat,
+                        "Wrong TextFlyCnt-Hint." );
+            const_cast<SwFormatFlyCnt&>(pHint->GetFlyCnt()).SetFlyFormat();
+
+            // Connection is now detached, therefore the attribute can be
+            // deleted
+            pTextNode->DeleteAttributes( RES_TXTATR_FLYCNT, nIdx, nIdx );
+        }
+
+        // reposition anchor
+        SwFormatAnchor aNewAnchor( m_nOldAnchorType );
+        GetAnchor( aNewAnchor, m_nOldNode, m_nOldContent );
+        m_pFrameFormat->SetFormatAttr( aNewAnchor );
+
+        if (RndStdIds::FLY_AS_CHAR == aNewAnchor.GetAnchorId())
+        {
+            SwNode* pAnchorNode = aNewAnchor.GetAnchorNode();
+            SwFormatFlyCnt aFormat( m_pFrameFormat );
+            pAnchorNode->GetTextNode()->InsertItem( aFormat,
+                m_nOldContent, 0 );
+        }
+
+        m_pFrameFormat->MakeFrames();
+    }
+    rContext.SetSelections(m_pFrameFormat, nullptr);
+}
+
+void SwUndoSetFlyFormat::RedoImpl(::sw::UndoRedoContext & rContext)
+{
+    SwDoc & rDoc = rContext.GetDoc();
+
+    // Is the new Format still existent?
+    SwFrameFormat* pNewFrameFormat = rDoc.FindFrameFormatByName(m_NewFormatName);
+    if (!pNewFrameFormat)
+        return;
+
+    if( m_bAnchorChanged )
+    {
+        SwFormatAnchor aNewAnchor( m_nNewAnchorType );
+        GetAnchor( aNewAnchor, m_nNewNode, m_nNewContent );
+        SfxItemSet aSet( rDoc.GetAttrPool(), aFrameFormatSetRange );
+        aSet.Put( aNewAnchor );
+        rDoc.SetFrameFormatToFly( *m_pFrameFormat, *pNewFrameFormat, &aSet );
+    }
+    else
+        rDoc.SetFrameFormatToFly( *m_pFrameFormat, *pNewFrameFormat);
+
+    rContext.SetSelections(m_pFrameFormat, nullptr);
+}
+
+void SwUndoSetFlyFormat::PutAttr( sal_uInt16 nWhich, const SfxPoolItem* pItem )
+{
+    if( pItem && !SfxPoolItem::areSame(pItem, GetDfltAttr( nWhich ) ) )
+    {
+        // Special treatment for this anchor
+        if( RES_ANCHOR == nWhich )
+        {
+            // only keep the first change
+            OSL_ENSURE( !m_bAnchorChanged, "multiple changes of an anchor are not allowed!" );
+
+            m_bAnchorChanged = true;
+
+            const SwFormatAnchor* pAnchor = static_cast<const SwFormatAnchor*>(pItem);
+            m_nOldAnchorType = pAnchor->GetAnchorId();
+            switch( m_nOldAnchorType )
+            {
+            case RndStdIds::FLY_AS_CHAR:
+            case RndStdIds::FLY_AT_CHAR:
+                m_nOldContent = pAnchor->GetAnchorContentOffset();
+                [[fallthrough]];
+            case RndStdIds::FLY_AT_PARA:
+            case RndStdIds::FLY_AT_FLY:
+                m_nOldNode = pAnchor->GetAnchorNode()->GetIndex();
+                break;
+
+            default:
+                m_nOldContent = pAnchor->GetPageNum();
+            }
+
+            pAnchor = &m_pFrameFormat->GetAnchor();
+            m_nNewAnchorType = pAnchor->GetAnchorId();
+            switch( m_nNewAnchorType )
+            {
+            case RndStdIds::FLY_AS_CHAR:
+            case RndStdIds::FLY_AT_CHAR:
+                m_nNewContent = pAnchor->GetAnchorContentOffset();
+                [[fallthrough]];
+            case RndStdIds::FLY_AT_PARA:
+            case RndStdIds::FLY_AT_FLY:
+                m_nNewNode = pAnchor->GetAnchorNode()->GetIndex();
+                break;
+
+            default:
+                m_nNewContent = pAnchor->GetPageNum();
+            }
+        }
+        else
+            m_oItemSet->Put( *pItem );
+    }
+    else
+        m_oItemSet->InvalidateItem( nWhich );
+}
+
+void SwUndoSetFlyFormat::SwClientNotify(const SwModify&, const SfxHint& rHint)
+{
+    if (rHint.GetId() != SfxHintId::SwLegacyModify)
+        return;
+    auto pLegacy = static_cast<const sw::LegacyModifyHint*>(&rHint);
+    if(!pLegacy->m_pOld)
+        return;
+    const sal_uInt16 nWhich = pLegacy->m_pOld->Which();
+    if(nWhich < POOLATTR_END)
+        PutAttr(nWhich, pLegacy->m_pOld);
+    else if(RES_ATTRSET_CHG == nWhich)
+    {
+        SfxItemIter aIter(*static_cast<const SwAttrSetChg*>(pLegacy->m_pOld)->GetChgSet());
+        for(const SfxPoolItem* pItem = aIter.GetCurItem(); pItem; pItem = aIter.NextItem())
+            PutAttr(pItem->Which(), pItem);
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */