/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

 *   with this work for additional information regarding copyright

 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#pragma once

#include <svl/undo.hxx>

#include <vcl/texteng.hxx>

class TextView;

class TextSelection;

class TextDoc;

class TEParaPortions;

class TextUndoManager : public SfxUndoManager

{

    TextEngine*     mpTextEngine;

protected:

    void            UndoRedoStart();

    void            UndoRedoEnd();

    TextView*       GetView() const { return mpTextEngine->GetActiveView(); }

public:

    explicit TextUndoManager( TextEngine* pTextEngine );

    virtual ~TextUndoManager() override;

    using SfxUndoManager::Undo;

    virtual bool Undo() override;

    using SfxUndoManager::Redo;

    virtual bool Redo() override;

};

class TextUndo : public SfxUndoAction

{

private:

    TextEngine*         mpTextEngine;

protected:

    TextView*           GetView() const { return mpTextEngine->GetActiveView(); }

    void                SetSelection( const TextSelection& rSel );

    TextDoc*            GetDoc() const { return mpTextEngine->mpDoc.get(); }

    TEParaPortions*     GetTEParaPortions() const { return mpTextEngine->mpTEParaPortions.get(); }

public:

    explicit            TextUndo( TextEngine* pTextEngine );

    virtual             ~TextUndo() override;

    TextEngine*         GetTextEngine() const   { return mpTextEngine; }

    virtual void        Undo() override      = 0;

    virtual void        Redo() override      = 0;

    virtual OUString GetComment() const override;

};

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