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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 _SD_UNDOMANAGER_HXX
      21                 :            : #define _SD_UNDOMANAGER_HXX
      22                 :            : 
      23                 :            : #include "misc/scopelock.hxx"
      24                 :            : #include <svl/undo.hxx>
      25                 :            : 
      26                 :            : namespace sd
      27                 :            : {
      28                 :            : 
      29         [ -  + ]:        390 : class UndoManager : public SfxUndoManager
      30                 :            : {
      31                 :            : public:
      32                 :            :     UndoManager( sal_uInt16 nMaxUndoActionCount = 20 );
      33                 :            : 
      34                 :            :     virtual void            EnterListAction(const UniString &rComment, const UniString& rRepeatComment, sal_uInt16 nId=0);
      35                 :            : 
      36                 :            :     virtual void            AddUndoAction( SfxUndoAction *pAction, sal_Bool bTryMerg=sal_False );
      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 SfxUndoManager::Undo;
      44                 :            :     using SfxUndoManager::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 (void);
      59                 :            : };
      60                 :            : 
      61                 :            : }
      62                 :            : 
      63                 :            : #endif     // _SD_UNDOMANAGER_HXX
      64                 :            : 
      65                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */