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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_SD_INC_UNDO_UNDOMANAGER_HXX
      21             : #define INCLUDED_SD_INC_UNDO_UNDOMANAGER_HXX
      22             : 
      23             : #include <misc/scopelock.hxx>
      24             : #include <svx/sdrundomanager.hxx>
      25             : 
      26             : namespace sd
      27             : {
      28             : 
      29         626 : class UndoManager : public SdrUndoManager
      30             : {
      31             : public:
      32             :     UndoManager( sal_uInt16 nMaxUndoActionCount = 20 );
      33             : 
      34             :     virtual void            EnterListAction(const OUString &rComment, const OUString& rRepeatComment, sal_uInt16 nId=0) SAL_OVERRIDE;
      35             : 
      36             :     virtual void            AddUndoAction( SfxUndoAction *pAction, bool bTryMerg=false ) SAL_OVERRIDE;
      37             : 
      38             :     /** Set or reset the undo manager linked with the called undo manager.
      39             :     */
      40             :     void SetLinkedUndoManager (::svl::IUndoManager* pLinkedUndoManager);
      41             : 
      42             : private:
      43             :     using SdrUndoManager::Undo;
      44             :     using SdrUndoManager::Redo;
      45             : 
      46             :     /** Used when the outline view is visible as a last resort to
      47             :         synchronize the undo managers.
      48             :     */
      49             :     ::svl::IUndoManager* mpLinkedUndoManager;
      50             : 
      51             :     /** Call ClearRedo() at the linked undo manager, when present.
      52             : 
      53             :         It should not be necessary to call ClearRedo() explicitly, but the
      54             :         synchronization between the under managers of the document and the
      55             :         outline view seems to have a bug.  Therefore this method is called
      56             :         whenever a new undo action is added.
      57             :     */
      58             :     void ClearLinkedRedoActions();
      59             : };
      60             : 
      61             : }
      62             : 
      63             : #endif // INCLUDED_SD_INC_UNDO_UNDOMANAGER_HXX
      64             : 
      65             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */