1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
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9  * This file incorporates work covered by the following license notice:
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18  */
19 
20 #pragma once
21 
22 #include <svx/sdrundomanager.hxx>
23 
24 namespace sd
25 {
26 
27 class UndoManager final : public SdrUndoManager
28 {
29 public:
30     UndoManager();
31 
32     virtual void            EnterListAction(const OUString &rComment, const OUString& rRepeatComment, sal_uInt16 nId, ViewShellId nViewShellId) override;
33 
34     virtual void            AddUndoAction( std::unique_ptr<SfxUndoAction> pAction, bool bTryMerg=false ) override;
35 
36     /** Set or reset the undo manager linked with the called undo manager.
37     */
38     void SetLinkedUndoManager (SfxUndoManager* pLinkedUndoManager);
39 
40 private:
41     using SdrUndoManager::Undo;
42     using SdrUndoManager::Redo;
43 
44     /** Used when the outline view is visible as a last resort to
45         synchronize the undo managers.
46     */
47     SfxUndoManager* mpLinkedUndoManager;
48 
49     /** Call ClearRedo() at the linked undo manager, when present.
50 
51         It should not be necessary to call ClearRedo() explicitly, but the
52         synchronization between the under managers of the document and the
53         outline view seems to have a bug.  Therefore this method is called
54         whenever a new undo action is added.
55     */
56     void ClearLinkedRedoActions();
57 };
58 
59 }
60 
61 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
62