// conducteö - free software for 2d thermal bridges computation.
// Copyright (C) 2009-2020, Clément MARCEL.
//
// This file is part of conducteö software.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the  Free Software Foundation,  either version 3 of the License,  or
// (at your option) any later version.
//
// This program is  distributed  in  the  hope that it  will be useful,
// but  WITHOUT ANY WARRANTY ;  without even  the  implied  warranty of
// MERCHANTABILITY  or  FITNESS  FOR  A  PARTICULAR  PURPOSE.  See  the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU  General  Public  License
// along with this program. If not, see <http://www.gnu.org/licenses/>.

#ifndef _ACTIONS_MANAGER_H
#define _ACTIONS_MANAGER_H

#include <actions/Observable.h>
#include <tools/Singleton.h>
#include <vector>

class UserAction;
class Volume;
class Image;

class ActionsManager: public Singleton<ActionsManager>,
                      public Observable
{

public:

    ActionsManager();
    virtual ~ActionsManager();
    
    void exec(UserAction *action);
    void removeAction(UserAction *action);
    void clear();

    void undo();
    void redo();

    bool canUndo() const;
    bool canRedo() const;

    void setSavedModel(bool saved);
    bool saved() const;

private:

    void clearRedoActions();
    void clearUndoActions();

    std::vector<UserAction*>    _undo;
    std::vector<UserAction*>    _redo;

    bool                        _savedModel;

};

#endif
