Line data    Source code

       1             : /*
       2             :  * This file is part of the LibreOffice project.
       3             :  *
       4             :  * This Source Code Form is subject to the terms of the Mozilla Public
       5             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       6             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       7             :  *
       8             :  * This file incorporates work covered by the following license notice:
       9             :  *
      10             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      11             :  *   contributor license agreements. See the NOTICE file distributed
      12             :  *   with this work for additional information regarding copyright
      13             :  *   ownership. The ASF licenses this file to you under the Apache
      14             :  *   License, Version 2.0 (the "License"); you may not use this file
      15             :  *   except in compliance with the License. You may obtain a copy of
      16             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      17             :  */
      18             : #ifndef _SDR_UNDOMANAGER_HXX
      19             : #define _SDR_UNDOMANAGER_HXX
      20             : 
      21             : #include "svx/svxdllapi.h"
      22             : #include <sal/types.h>
      23             : #include <editeng/editund2.hxx>
      24             : #include <tools/link.hxx>
      25             : 
      26             : //////////////////////////////////////////////////////////////////////////////
      27             : 
      28             : class SVX_DLLPUBLIC SdrUndoManager : public EditUndoManager
      29             : {
      30             : private:
      31             :     using EditUndoManager::Undo;
      32             :     using EditUndoManager::Redo;
      33             : 
      34             :     Link            maEndTextEditHdl;
      35             :     SfxUndoAction*  mpLastUndoActionBeforeTextEdit;
      36             :     bool            mbEndTextEditTriggeredFromUndo;
      37             : 
      38             : protected:
      39             :     // call to check for TextEdit active
      40             :     bool isTextEditActive() const;
      41             : 
      42             : public:
      43             :     SdrUndoManager(sal_uInt16 nMaxUndoActionCount = 20);
      44             :     virtual ~SdrUndoManager();
      45             : 
      46             :     /// react depending on edit mode and if no more undo is possible
      47             :     virtual bool Undo();
      48             :     virtual bool Redo();
      49             : 
      50             :     // Call for the view which starts the interactive text edit. Use link to
      51             :     // activate (start text edit) and empty link to reset (end text edit). On
      52             :     // reset all text edit actions will be removed from this undo manager to
      53             :     // restore the state before activation
      54             :     void SetEndTextEditHdl(const Link& rLink);
      55             : 
      56             :     // check from outside if we are inside a callback for ending text edit. This
      57             :     // is needed to detect inside end text edit if it is a regular one or triggered
      58             :     // by a last undo during text edit
      59           0 :     bool isEndTextEditTriggeredFromUndo() { return mbEndTextEditTriggeredFromUndo; }
      60             : };
      61             : 
      62             : //////////////////////////////////////////////////////////////////////////////
      63             : 
      64             : #endif //_SDR_UNDOMANAGER_HXX
      65             : // eof