/* -*- C++ -*- * Model.h - header file for class Model * Copyright (c) 1999 Joe Yandle <yandle@cs.unc.edu> * * Class Model is an abstract class that declares the functions * needed by an implementation of a Model, and what data members it * should have. *  * 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 2 * 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, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. *  */#ifndef MODEL_H#define MODEL_H#include <time.h>#include "Database.h"#include "Modem.h"#include "Region.h"#include "String.h"class View;class Model{ public:    virtual void runModel()=0;    virtual void quitModel()=0;    virtual Database* getDbase()=0;    virtual void setView(View* v)=0;    virtual void startModel()=0;    virtual void stopModel()=0;    virtual void iterate()=0;    virtual bool modemOpen()=0;    virtual bool modemLock()=0;    virtual String getDate(time_t t)=0;    virtual String getTime(time_t t)=0;#ifdef VOICE    virtual void playGreeting()=0;    virtual void recordGreeting()=0;    virtual void playMessage(String messageFile)=0;    virtual void recordMessage(String messageFile)=0;    virtual void answerCall()=0;    virtual void handsetCallNumber(String& number)=0;    virtual void speakerphoneCallNumber(String& number)=0;    virtual void hangUp()=0;#endif protected:    Database* dbase;    View* view;    Modem* modem;    Region* region;};#endif