include/svx/sdrundomanager.hxx

   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 #ifndef INCLUDED_SVX_SDRUNDOMANAGER_HXX
  20 #define INCLUDED_SVX_SDRUNDOMANAGER_HXX
  21
  22 #include <svx/svxdllapi.h>
  23 #include <sal/types.h>
  24 #include <editeng/editund2.hxx>
  25 #include <tools/link.hxx>
  26
  27 class SfxObjectShell;
  28
  29 class SVX_DLLPUBLIC SdrUndoManager : public EditUndoManager
  30 {
  31 private:
  32     using EditUndoManager::Undo;
  33     using EditUndoManager::Redo;
  34
  35     Link<SdrUndoManager*,void>  maEndTextEditHdl;
  36     SfxUndoAction*  mpLastUndoActionBeforeTextEdit;
  37     bool            mbEndTextEditTriggeredFromUndo;
  38
  39 protected:
  40     SfxObjectShell* m_pDocSh;
  41     // call to check for TextEdit active
  42     bool isTextEditActive() const;
  43     virtual void EmptyActionsChanged() override;
  44
  45 public:
  46     SdrUndoManager(sal_uInt16 nMaxUndoActionCount = 20);
  47     virtual ~SdrUndoManager() override;
  48
  49     /// react depending on edit mode and if no more undo is possible
  50     virtual bool Undo() override;
  51     virtual bool Redo() override;
  52
  53     // #i123350#
  54     virtual void Clear() override;
  55
  56     // Call for the view which starts the interactive text edit. Use link to
  57     // activate (start text edit) and empty link to reset (end text edit). On
  58     // reset all text edit actions will be removed from this undo manager to
  59     // restore the state before activation
  60     void SetEndTextEditHdl(const Link<SdrUndoManager*,void>& rLink);
  61
  62     // check from outside if we are inside a callback for ending text edit. This
  63     // is needed to detect inside end text edit if it is a regular one or triggered
  64     // by a last undo during text edit
  65     bool isEndTextEditTriggeredFromUndo() { return mbEndTextEditTriggeredFromUndo; }
  66     void SetDocShell(SfxObjectShell* pDocShell);
  67 };
  68
  69 #endif // INCLUDED_SVX_SDRUNDOMANAGER_HXX
  70
  71 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */