1 files changed, 661 insertions, 0 deletions
diff --git a/editeng/source/editeng/editundo.cxx b/editeng/source/editeng/editundo.cxx
new file mode 100644
index 0000000000..5854d1683e
--- /dev/null
+++ b/editeng/source/editeng/editundo.cxx
@@ -0,0 +1,661 @@
+/* -*- 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 <memory>
+#include "impedit.hxx"
+#include "editundo.hxx"
+#include <editeng/editview.hxx>
+#include <editeng/editeng.hxx>
+#include <utility>
+#include <osl/diagnose.h>
+
+
+static void lcl_DoSetSelection( EditView const * pView, sal_uInt16 nPara )
+{
+    EPaM aEPaM( nPara, 0 );
+    EditPaM aPaM( pView->GetImpEditEngine()->CreateEditPaM( aEPaM ) );
+    aPaM.SetIndex( aPaM.GetNode()->Len() );
+    EditSelection aSel( aPaM, aPaM );
+    pView->GetImpEditView()->SetEditSelection( aSel );
+}
+
+EditUndoManager::EditUndoManager(sal_uInt16 nMaxUndoActionCount )
+:   SfxUndoManager(nMaxUndoActionCount),
+    mpEditEngine(nullptr)
+{
+}
+
+void EditUndoManager::SetEditEngine(EditEngine* pNew)
+{
+    mpEditEngine = pNew;
+}
+
+bool EditUndoManager::Undo()
+{
+    if ( !mpEditEngine || GetUndoActionCount() == 0 )
+        return false;
+
+    DBG_ASSERT( mpEditEngine->GetActiveView(), "Active View?" );
+
+    if ( !mpEditEngine->GetActiveView() )
+    {
+        if (!mpEditEngine->GetEditViews().empty())
+            mpEditEngine->SetActiveView(mpEditEngine->GetEditViews()[0]);
+        else
+        {
+            OSL_FAIL("Undo in engine is not possible without a View! ");
+            return false;
+        }
+    }
+
+    mpEditEngine->GetActiveView()->GetImpEditView()->DrawSelectionXOR(); // Remove the old selection
+
+    mpEditEngine->SetUndoMode( true );
+    bool bDone = SfxUndoManager::Undo();
+    mpEditEngine->SetUndoMode( false );
+
+    EditSelection aNewSel( mpEditEngine->GetActiveView()->GetImpEditView()->GetEditSelection() );
+    DBG_ASSERT( !aNewSel.IsInvalid(), "Invalid selection after Undo () ");
+    DBG_ASSERT( !aNewSel.DbgIsBuggy( mpEditEngine->GetEditDoc() ), "Broken selection afte Undo () ");
+
+    aNewSel.Min() = aNewSel.Max();
+    mpEditEngine->GetActiveView()->GetImpEditView()->SetEditSelection( aNewSel );
+    if (mpEditEngine->IsUpdateLayout())
+        mpEditEngine->FormatAndLayout( mpEditEngine->GetActiveView(), true );
+
+    return bDone;
+}
+
+bool EditUndoManager::Redo()
+{
+    if ( !mpEditEngine || GetRedoActionCount() == 0 )
+        return false;
+
+    DBG_ASSERT( mpEditEngine->GetActiveView(), "Active View?" );
+
+    if ( !mpEditEngine->GetActiveView() )
+    {
+        if (!mpEditEngine->GetEditViews().empty())
+            mpEditEngine->SetActiveView(mpEditEngine->GetEditViews()[0]);
+        else
+        {
+            OSL_FAIL( "Redo in Engine without View not possible!" );
+            return false;
+        }
+    }
+
+    mpEditEngine->GetActiveView()->GetImpEditView()->DrawSelectionXOR(); // Remove the old selection
+
+    mpEditEngine->SetUndoMode( true );
+    bool bDone = SfxUndoManager::Redo();
+    mpEditEngine->SetUndoMode( false );
+
+    EditSelection aNewSel( mpEditEngine->GetActiveView()->GetImpEditView()->GetEditSelection() );
+    DBG_ASSERT( !aNewSel.IsInvalid(), "Invalid selection after Undo () ");
+    DBG_ASSERT( !aNewSel.DbgIsBuggy( mpEditEngine->GetEditDoc() ), "Broken selection afte Undo () ");
+
+    aNewSel.Min() = aNewSel.Max();
+    mpEditEngine->GetActiveView()->GetImpEditView()->SetEditSelection( aNewSel );
+    if (mpEditEngine->IsUpdateLayout())
+        mpEditEngine->FormatAndLayout( mpEditEngine->GetActiveView() );
+
+    return bDone;
+}
+
+EditUndo::EditUndo(sal_uInt16 nI, EditEngine* pEE) :
+    nId(nI), mnViewShellId(-1), mpEditEngine(pEE)
+{
+    const EditView* pEditView = mpEditEngine ? mpEditEngine->GetActiveView() : nullptr;
+    const OutlinerViewShell* pViewShell = pEditView ? pEditView->GetImpEditView()->GetViewShell() : nullptr;
+    if (pViewShell)
+        mnViewShellId = pViewShell->GetViewShellId();
+}
+
+EditUndo::~EditUndo()
+{
+}
+
+
+sal_uInt16 EditUndo::GetId() const
+{
+    return nId;
+}
+
+bool EditUndo::CanRepeat(SfxRepeatTarget&) const
+{
+    return false;
+}
+
+OUString EditUndo::GetComment() const
+{
+    OUString aComment;
+
+    if (mpEditEngine)
+        aComment = mpEditEngine->GetUndoComment( GetId() );
+
+    return aComment;
+}
+
+ViewShellId EditUndo::GetViewShellId() const
+{
+    return mnViewShellId;
+}
+
+EditUndoDelContent::EditUndoDelContent(
+    EditEngine* pEE, ContentNode* pNode, sal_Int32 nPortion) :
+    EditUndo(EDITUNDO_DELCONTENT, pEE),
+    bDelObject(true),
+    nNode(nPortion),
+    pContentNode(pNode) {}
+
+EditUndoDelContent::~EditUndoDelContent()
+{
+    if ( bDelObject )
+        delete pContentNode;
+}
+
+void EditUndoDelContent::Undo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    GetEditEngine()->InsertContent( pContentNode, nNode );
+    bDelObject = false; // belongs to the Engine again
+    EditSelection aSel( EditPaM( pContentNode, 0 ), EditPaM( pContentNode, pContentNode->Len() ) );
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection(aSel);
+}
+
+void EditUndoDelContent::Redo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+
+    EditEngine* pEE = GetEditEngine();
+
+    // pNode is no longer correct, if the paragraphs where merged
+    // in between Undos
+    pContentNode = pEE->GetEditDoc().GetObject( nNode );
+    DBG_ASSERT( pContentNode, "EditUndoDelContent::Redo(): Node?!" );
+
+    pEE->RemoveParaPortion(nNode);
+
+    // Do not delete node, depends on the undo!
+    pEE->GetEditDoc().Release( nNode );
+    if (pEE->IsCallParaInsertedOrDeleted())
+        pEE->ParagraphDeleted( nNode );
+
+    DeletedNodeInfo* pInf = new DeletedNodeInfo( pContentNode, nNode );
+    pEE->AppendDeletedNodeInfo(pInf);
+    pEE->UpdateSelections();
+
+    ContentNode* pN = ( nNode < pEE->GetEditDoc().Count() )
+        ? pEE->GetEditDoc().GetObject( nNode )
+        : pEE->GetEditDoc().GetObject( nNode-1 );
+    DBG_ASSERT( pN && ( pN != pContentNode ), "?! RemoveContent !? " );
+    EditPaM aPaM( pN, pN->Len() );
+
+    bDelObject = true;  // belongs to the Engine again
+
+    pEE->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aPaM, aPaM ) );
+}
+
+EditUndoConnectParas::EditUndoConnectParas(
+    EditEngine* pEE, sal_Int32 nN, sal_uInt16 nSP,
+    SfxItemSet _aLeftParaAttribs, SfxItemSet _aRightParaAttribs,
+    const SfxStyleSheet* pLeftStyle, const SfxStyleSheet* pRightStyle, bool bBkwrd) :
+    EditUndo(EDITUNDO_CONNECTPARAS, pEE),
+    nNode(nN),
+    nSepPos(nSP),
+    aLeftParaAttribs(std::move(_aLeftParaAttribs)),
+    aRightParaAttribs(std::move(_aRightParaAttribs)),
+    eLeftStyleFamily(SfxStyleFamily::All),
+    eRightStyleFamily(SfxStyleFamily::All),
+    bBackward(bBkwrd)
+{
+    if ( pLeftStyle )
+    {
+        aLeftStyleName = pLeftStyle->GetName();
+        eLeftStyleFamily = pLeftStyle->GetFamily();
+    }
+    if ( pRightStyle )
+    {
+        aRightStyleName = pRightStyle->GetName();
+        eRightStyleFamily = pRightStyle->GetFamily();
+    }
+}
+
+EditUndoConnectParas::~EditUndoConnectParas()
+{
+}
+
+void EditUndoConnectParas::Undo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+
+    // For SplitContent ParagraphInserted can not be called yet because the
+    // Outliner relies on the attributes to initialize the depth
+
+    bool bCall = GetEditEngine()->IsCallParaInsertedOrDeleted();
+    GetEditEngine()->SetCallParaInsertedOrDeleted(false);
+
+    EditPaM aPaM = GetEditEngine()->SplitContent(nNode, nSepPos);
+
+    GetEditEngine()->SetCallParaInsertedOrDeleted( bCall );
+    if (GetEditEngine()->IsCallParaInsertedOrDeleted())
+    {
+        GetEditEngine()->ParagraphInserted( nNode+1 );
+        GetEditEngine()->SetParaAttribs( nNode+1, aRightParaAttribs );
+    }
+
+    // Calling SetParaAttribs is effective only after ParagraphInserted
+    GetEditEngine()->SetParaAttribs( nNode, aLeftParaAttribs );
+
+    if (GetEditEngine()->GetStyleSheetPool())
+    {
+        if ( !aLeftStyleName.isEmpty() )
+            GetEditEngine()->SetStyleSheet( nNode, static_cast<SfxStyleSheet*>(GetEditEngine()->GetStyleSheetPool()->Find( aLeftStyleName, eLeftStyleFamily )) );
+        if ( !aRightStyleName.isEmpty() )
+            GetEditEngine()->SetStyleSheet( nNode+1, static_cast<SfxStyleSheet*>(GetEditEngine()->GetStyleSheetPool()->Find( aRightStyleName, eRightStyleFamily )) );
+    }
+
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aPaM, aPaM ) );
+}
+
+void EditUndoConnectParas::Redo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: Np Active View!" );
+    EditPaM aPaM = GetEditEngine()->ConnectContents( nNode, bBackward );
+
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aPaM, aPaM ) );
+}
+
+EditUndoSplitPara::EditUndoSplitPara(
+    EditEngine* pEE, sal_Int32 nN, sal_uInt16 nSP) :
+    EditUndo(EDITUNDO_SPLITPARA, pEE),
+    nNode(nN), nSepPos(nSP) {}
+
+EditUndoSplitPara::~EditUndoSplitPara() {}
+
+void EditUndoSplitPara::Undo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    EditPaM aPaM = GetEditEngine()->ConnectContents(nNode, false);
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aPaM, aPaM ) );
+}
+
+void EditUndoSplitPara::Redo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    EditPaM aPaM = GetEditEngine()->SplitContent(nNode, nSepPos);
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aPaM, aPaM ) );
+}
+
+EditUndoInsertChars::EditUndoInsertChars(
+    EditEngine* pEE, const EPaM& rEPaM, OUString aStr) :
+    EditUndo(EDITUNDO_INSERTCHARS, pEE),
+    aEPaM(rEPaM),
+    aText(std::move(aStr)) {}
+
+void EditUndoInsertChars::Undo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    EditPaM aPaM = GetEditEngine()->CreateEditPaM(aEPaM);
+    EditSelection aSel( aPaM, aPaM );
+    aSel.Max().SetIndex( aSel.Max().GetIndex() + aText.getLength() );
+    EditPaM aNewPaM( GetEditEngine()->DeleteSelection(aSel) );
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aNewPaM, aNewPaM ) );
+}
+
+void EditUndoInsertChars::Redo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    EditPaM aPaM = GetEditEngine()->CreateEditPaM(aEPaM);
+    GetEditEngine()->InsertText(EditSelection(aPaM, aPaM), aText);
+    EditPaM aNewPaM( aPaM );
+    aNewPaM.SetIndex( aNewPaM.GetIndex() + aText.getLength() );
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aPaM, aNewPaM ) );
+}
+
+bool EditUndoInsertChars::Merge( SfxUndoAction* pNextAction )
+{
+    EditUndoInsertChars* pNext = dynamic_cast<EditUndoInsertChars*>(pNextAction);
+    if (!pNext)
+        return false;
+
+    if ( aEPaM.nPara != pNext->aEPaM.nPara )
+        return false;
+
+    if ( ( aEPaM.nIndex + aText.getLength() ) == pNext->aEPaM.nIndex )
+    {
+        aText += pNext->aText;
+        return true;
+    }
+    return false;
+}
+
+EditUndoRemoveChars::EditUndoRemoveChars(
+    EditEngine* pEE, const EPaM& rEPaM, OUString aStr) :
+    EditUndo(EDITUNDO_REMOVECHARS, pEE),
+    aEPaM(rEPaM), aText(std::move(aStr)) {}
+
+void EditUndoRemoveChars::Undo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    EditPaM aPaM = GetEditEngine()->CreateEditPaM(aEPaM);
+    EditSelection aSel( aPaM, aPaM );
+    GetEditEngine()->InsertText(aSel, aText);
+    aSel.Max().SetIndex( aSel.Max().GetIndex() + aText.getLength() );
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection(aSel);
+}
+
+void EditUndoRemoveChars::Redo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    EditPaM aPaM = GetEditEngine()->CreateEditPaM(aEPaM);
+    EditSelection aSel( aPaM, aPaM );
+    aSel.Max().SetIndex( aSel.Max().GetIndex() + aText.getLength() );
+    EditPaM aNewPaM = GetEditEngine()->DeleteSelection(aSel);
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection(aNewPaM);
+}
+
+EditUndoInsertFeature::EditUndoInsertFeature(
+    EditEngine* pEE, const EPaM& rEPaM, const SfxPoolItem& rFeature) :
+    EditUndo(EDITUNDO_INSERTFEATURE, pEE),
+    aEPaM(rEPaM),
+    pFeature(rFeature.Clone())
+{
+    DBG_ASSERT( pFeature, "Feature could not be duplicated: EditUndoInsertFeature" );
+}
+
+EditUndoInsertFeature::~EditUndoInsertFeature()
+{
+}
+
+void EditUndoInsertFeature::Undo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    EditPaM aPaM = GetEditEngine()->CreateEditPaM(aEPaM);
+    EditSelection aSel( aPaM, aPaM );
+    // Attributes are then corrected implicitly by the document ...
+    aSel.Max().SetIndex( aSel.Max().GetIndex()+1 );
+    GetEditEngine()->DeleteSelection(aSel);
+    aSel.Max().SetIndex( aSel.Max().GetIndex()-1 ); // For Selection
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection(aSel);
+}
+
+void EditUndoInsertFeature::Redo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    EditPaM aPaM = GetEditEngine()->CreateEditPaM(aEPaM);
+    EditSelection aSel( aPaM, aPaM );
+    GetEditEngine()->InsertFeature(aSel, *pFeature);
+    if ( pFeature->Which() == EE_FEATURE_FIELD )
+        GetEditEngine()->UpdateFieldsOnly();
+    aSel.Max().SetIndex( aSel.Max().GetIndex()+1 );
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection(aSel);
+}
+
+EditUndoMoveParagraphs::EditUndoMoveParagraphs(
+    EditEngine* pEE, const Range& rParas, sal_Int32 n) :
+    EditUndo(EDITUNDO_MOVEPARAGRAPHS, pEE), nParagraphs(rParas), nDest(n) {}
+
+EditUndoMoveParagraphs::~EditUndoMoveParagraphs() {}
+
+void EditUndoMoveParagraphs::Undo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    Range aTmpRange( nParagraphs );
+    tools::Long nTmpDest = aTmpRange.Min();
+
+    tools::Long nDiff = nDest - aTmpRange.Min();
+    aTmpRange.Min() += nDiff;
+    aTmpRange.Max() += nDiff;
+
+    if ( nParagraphs.Min() < static_cast<tools::Long>(nDest) )
+    {
+        tools::Long nLen = aTmpRange.Len();
+        aTmpRange.Min() -= nLen;
+        aTmpRange.Max() -= nLen;
+    }
+    else
+        nTmpDest += aTmpRange.Len();
+
+    EditSelection aNewSel = GetEditEngine()->MoveParagraphs(aTmpRange, nTmpDest);
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( aNewSel );
+}
+
+void EditUndoMoveParagraphs::Redo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    EditSelection aNewSel = GetEditEngine()->MoveParagraphs(nParagraphs, nDest);
+    GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( aNewSel );
+}
+
+EditUndoSetStyleSheet::EditUndoSetStyleSheet(
+    EditEngine* pEE, sal_Int32 nP, OUString _aPrevName, SfxStyleFamily ePrevFam,
+    OUString _aNewName, SfxStyleFamily eNewFam, SfxItemSet _aPrevParaAttribs) :
+    EditUndo(EDITUNDO_STYLESHEET, pEE),
+    nPara(nP),
+    aPrevName(std::move(_aPrevName)),
+    aNewName(std::move(_aNewName)),
+    ePrevFamily(ePrevFam),
+    eNewFamily(eNewFam),
+    aPrevParaAttribs(std::move(_aPrevParaAttribs))
+{
+}
+
+EditUndoSetStyleSheet::~EditUndoSetStyleSheet()
+{
+}
+
+void EditUndoSetStyleSheet::Undo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    GetEditEngine()->SetStyleSheet( nPara, static_cast<SfxStyleSheet*>(GetEditEngine()->GetStyleSheetPool()->Find( aPrevName, ePrevFamily )) );
+    GetEditEngine()->SetParaAttribsOnly( nPara, aPrevParaAttribs );
+    lcl_DoSetSelection( GetEditEngine()->GetActiveView(), nPara );
+}
+
+void EditUndoSetStyleSheet::Redo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    GetEditEngine()->SetStyleSheet( nPara, static_cast<SfxStyleSheet*>(GetEditEngine()->GetStyleSheetPool()->Find( aNewName, eNewFamily )) );
+    lcl_DoSetSelection( GetEditEngine()->GetActiveView(), nPara );
+}
+
+EditUndoSetParaAttribs::EditUndoSetParaAttribs(
+    EditEngine* pEE, sal_Int32 nP, SfxItemSet _aPrevItems, SfxItemSet _aNewItems) :
+    EditUndo(EDITUNDO_PARAATTRIBS, pEE),
+    nPara(nP),
+    aPrevItems(std::move(_aPrevItems)),
+    aNewItems(std::move(_aNewItems)) {}
+
+EditUndoSetParaAttribs::~EditUndoSetParaAttribs() {}
+
+void EditUndoSetParaAttribs::Undo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    GetEditEngine()->SetParaAttribsOnly( nPara, aPrevItems );
+    lcl_DoSetSelection( GetEditEngine()->GetActiveView(), nPara );
+}
+
+void EditUndoSetParaAttribs::Redo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    GetEditEngine()->SetParaAttribsOnly( nPara, aNewItems );
+    lcl_DoSetSelection( GetEditEngine()->GetActiveView(), nPara );
+}
+
+EditUndoSetAttribs::EditUndoSetAttribs(EditEngine* pEE, const ESelection& rESel, SfxItemSet aNewItems) :
+    EditUndo(EDITUNDO_ATTRIBS, pEE),
+    aESel(rESel),
+    aNewAttribs(std::move(aNewItems)),
+    nSpecial(SetAttribsMode::NONE),
+    m_bSetSelection(true),
+    // When EditUndoSetAttribs actually is a RemoveAttribs this could be
+    // recognize by the empty itemset, but then it would have to be caught in
+    // its own place, which possible a setAttribs does with an empty itemset.
+    bSetIsRemove(false),
+    bRemoveParaAttribs(false),
+    nRemoveWhich(0)
+{
+}
+
+EditUndoSetAttribs::~EditUndoSetAttribs()
+{
+}
+
+void EditUndoSetAttribs::Undo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    EditEngine* pEE = GetEditEngine();
+    bool bFields = false;
+    for ( sal_Int32 nPara = aESel.nStartPara; nPara <= aESel.nEndPara; nPara++ )
+    {
+        const ContentAttribsInfo& rInf = *aPrevAttribs[nPara-aESel.nStartPara];
+
+        // first the paragraph attributes ...
+        pEE->SetParaAttribsOnly(nPara, rInf.GetPrevParaAttribs());
+
+        // Then the character attributes ...
+        // Remove all attributes including features, are later re-established.
+        pEE->RemoveCharAttribs(nPara, 0, true);
+        DBG_ASSERT( pEE->GetEditDoc().GetObject( nPara ), "Undo (SetAttribs): pNode = NULL!" );
+        ContentNode* pNode = pEE->GetEditDoc().GetObject( nPara );
+        for (const auto & nAttr : rInf.GetPrevCharAttribs())
+        {
+            const EditCharAttrib& rX = *nAttr;
+            // is automatically "poolsized"
+            pEE->GetEditDoc().InsertAttrib(pNode, rX.GetStart(), rX.GetEnd(), *rX.GetItem());
+            if (rX.Which() == EE_FEATURE_FIELD)
+                bFields = true;
+        }
+    }
+    if ( bFields )
+        pEE->UpdateFieldsOnly();
+    if (m_bSetSelection)
+    {
+        ImpSetSelection();
+    }
+}
+
+void EditUndoSetAttribs::Redo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    EditEngine* pEE = GetEditEngine();
+
+    EditSelection aSel = pEE->CreateSelection(aESel);
+    if ( !bSetIsRemove )
+        pEE->SetAttribs( aSel, aNewAttribs, nSpecial );
+    else
+        pEE->RemoveCharAttribs( aSel, bRemoveParaAttribs, nRemoveWhich );
+
+    if (m_bSetSelection)
+    {
+        ImpSetSelection();
+    }
+}
+
+void EditUndoSetAttribs::AppendContentInfo(ContentAttribsInfo* pNew)
+{
+    aPrevAttribs.push_back(std::unique_ptr<ContentAttribsInfo>(pNew));
+}
+
+void EditUndoSetAttribs::ImpSetSelection()
+{
+    EditEngine* pEE = GetEditEngine();
+    EditSelection aSel = pEE->CreateSelection(aESel);
+    pEE->GetActiveView()->GetImpEditView()->SetEditSelection(aSel);
+}
+
+EditUndoTransliteration::EditUndoTransliteration(EditEngine* pEE, const ESelection& rESel, TransliterationFlags nM) :
+    EditUndo(EDITUNDO_TRANSLITERATE, pEE),
+    aOldESel(rESel), nMode(nM) {}
+
+EditUndoTransliteration::~EditUndoTransliteration()
+{
+}
+
+void EditUndoTransliteration::Undo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+
+    EditEngine* pEE = GetEditEngine();
+
+    EditSelection aSel = pEE->CreateSelection(aNewESel);
+
+    // Insert text, but don't expand Attribs at the current position:
+    aSel = pEE->DeleteSelected( aSel );
+    EditSelection aDelSel( aSel );
+    aSel = pEE->InsertParaBreak( aSel );
+    aDelSel.Max() = aSel.Min();
+    aDelSel.Max().GetNode()->GetCharAttribs().DeleteEmptyAttribs();
+    EditSelection aNewSel;
+    if ( pTxtObj )
+    {
+        aNewSel = pEE->InsertText( *pTxtObj, aSel );
+    }
+    else
+    {
+        aNewSel = pEE->InsertText( aSel, aText );
+    }
+    if ( aNewSel.Min().GetNode() == aDelSel.Max().GetNode() )
+    {
+        aNewSel.Min().SetNode( aDelSel.Min().GetNode() );
+        aNewSel.Min().SetIndex( aNewSel.Min().GetIndex() + aDelSel.Min().GetIndex() );
+    }
+    if ( aNewSel.Max().GetNode() == aDelSel.Max().GetNode() )
+    {
+        aNewSel.Max().SetNode( aDelSel.Min().GetNode() );
+        aNewSel.Max().SetIndex( aNewSel.Max().GetIndex() + aDelSel.Min().GetIndex() );
+    }
+    pEE->DeleteSelected( aDelSel );
+    pEE->GetActiveView()->GetImpEditView()->SetEditSelection( aNewSel );
+}
+
+void EditUndoTransliteration::Redo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    EditEngine* pEE = GetEditEngine();
+
+    EditSelection aSel = pEE->CreateSelection(aOldESel);
+    EditSelection aNewSel = pEE->TransliterateText( aSel, nMode );
+    pEE->GetActiveView()->GetImpEditView()->SetEditSelection( aNewSel );
+}
+
+EditUndoMarkSelection::EditUndoMarkSelection(EditEngine* pEE, const ESelection& rSel) :
+    EditUndo(EDITUNDO_MARKSELECTION, pEE), aSelection(rSel) {}
+
+EditUndoMarkSelection::~EditUndoMarkSelection() {}
+
+void EditUndoMarkSelection::Undo()
+{
+    DBG_ASSERT( GetEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
+    if ( GetEditEngine()->GetActiveView() )
+    {
+        if ( GetEditEngine()->IsFormatted() )
+            GetEditEngine()->GetActiveView()->SetSelection( aSelection );
+        else
+            GetEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( GetEditEngine()->CreateSelection(aSelection) );
+    }
+}
+
+void EditUndoMarkSelection::Redo()
+{
+    // For redo unimportant, because at the beginning of the undo parentheses
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */