///////////////////////////////////////////////////////////////////
//  client.cpp  -  demonstrate command pattern                   //
//  ver 1.1                                                      //
//                                                               //
//  Participants are:                                            //
//  command  - provides interface for invoker to use commands    //
//  concreteCommand - implements command interface               //
//  invoker  - notifies clients of events using commands         //
//  receiver - receives the action of a command                  //
//  client   - creates receivers, concrete commands, invoker     //
//                                                               //
//  Language:      Visual C++, ver 7.1                           //
//  Platform:      Dell Dimension 8300, Windows XP, Pro, sp2     //
//  Application:   CSE776 - Design Patterns, Summer 2005         //
//  Author:        Jim Fawcett, Instructor                       //
//                 CST 2-187, (315) 443-3948                     //
//                 jfawcett@twcny.rr.com                         //
///////////////////////////////////////////////////////////////////

#include <iostream>
#include "receiver.h"
#include "concreteCommand.h"
using namespace std;

void main() {

  cout << "\n  Demonstrate Command Pattern "
       << "\n =============================";

///////////////////////////////////////////////////////////////
//  create concrete commands, passing them any information   //
//  needed for their execute functions                       //
///////////////////////////////////////////////////////////////

  receiver r1("receiver r1");
  receiver r2("receiver r2");

  concreteCommand1 comm1(r1);
  concreteCommand2 comm2(r2);

///////////////////////////////////////////////////////////////
//  any client can register interest in library events       //
///////////////////////////////////////////////////////////////

  invoker inv;
  inv.Register(invoker::event1,&comm1);   // client #1
  inv.Register(invoker::event2,&comm1);   // client #1
  inv.Register(invoker::event2,&comm2);   // client #2
  inv.Register(invoker::event3,&comm2);   // client #2

///////////////////////////////////////////////////////////////
//  use the library facilities                               //
///////////////////////////////////////////////////////////////

  inv.doEvents();         // clients get notified here

  cout << endl << endl;
}