State.h

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/*
 *    scampl4cpp/engine
 *
 *    Copyright by European Southern Observatory, 2012
 *    All rights reserved
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation; either
 *    version 2.1 of the License, or (at your option) any later version.
 *
 *    This library 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
 *    Lesser General Public License for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
 *    02111-1307 USA.
 */

/*
 * $Id: State.h 1061 2015-07-13 15:03:59Z landolfa $
 */

#ifndef STATE_H
#define STATE_H

#ifndef __cplusplus
#error This is a C++ include file and cannot be used from plain C
#endif

#include <string>
#include <list>

namespace scxml4cpp
{

    class State;
    class Action;
    class Activity;
    class ExecutableContent;
    class StateHistory;
    class Transition;
    class Event;

    class State
    {
      public:
    enum StateType {
        Atomic = 0,
        Compound,
        Parallel,
        History
    };

    State(const std::string& id, const StateType type);
    virtual ~State();

    std::string     getId() const;
    StateType       getType() const;
    State*              getParent();
    StateHistory*           getHistory();
    ExecutableContent*  getEntryActions();
    ExecutableContent*  getExitActions();
    std::list<Transition*>& getInitialTrans();
    State*              getInitialState();
    std::list<State*>&  getSubstates();
    std::list<Transition*>& getTransitions();
    std::list<Activity*>&   getActivities();

    void setId(const std::string& id);
    void setParent(State* parent);
    void setIsInitial(const bool isInitial);
    void setIsFinal(const bool isFinal);
    void setHistory(StateHistory* h);
    void setInitialState(State* initialState, Action* a);
    void setFinalState(State* finalState);
    void setSubstates(std::list<State*>& substates);
    void setTransitions(std::list<Transition*>& transitions);
    void setActivities(std::list<Activity*>& activities);

    bool isInitial();
    bool isFinal();
    bool isCompound();
    bool isParallel();
    bool isAtomic();
    bool isHistory();

    void startActivities();
    void cancelActivities();
    
    void addEntryAction(Action*);
    void addExitAction(Action*);
    void addSubstate(State*);
    void addTransition(std::list<State*>& targets, const Event& event, 
               Action* condition, Action* action);
    void addTransition(State* target, const Event& event, Action* condition, Action* action);
    void addActivity(Activity* activity);

      private:
    std::string     mId;
    StateType       mType;
    State*              mParent;
    std::list<State*>   mSubstates;
    StateHistory*           mHistory;
    std::list<Transition*>  mTransitions;
    ExecutableContent*  mOnEntry;
    ExecutableContent*  mOnExit;
    std::list<Activity*>    mActivities;
    std::list<Transition*>  mInitialTrans;
    bool                mIsInitial;
    bool                mIsFinal;

    State(const State&);             
    State& operator= (const State&); 
    };

}
#endif