floorbutton.cpp

这是C＋＋编程经典的书上实例的源代码。 （英文名是《C＋＋ how to program》第3版）

// floorButton.cpp
// Member function definitions for class FloorButton.
#include <iostream>

using std::cout;
using std::endl;

#include "floorButton.h"
#include "elevator.h"

// constructor
FloorButton::FloorButton( const int number, 
                          Elevator &elevatorHandle  )
   : floorNumber( number ), pressed( false ), 
     elevatorRef( elevatorHandle ) 
{ 
   cout << "floor " << floorNumber << " button created" 
        << endl; 
}

FloorButton::~FloorButton() // destructor
{
   cout << "floor " << floorNumber << " button destroyed"
        << endl;
}

// press the button
void FloorButton::pressButton()
{
   pressed = true;
   cout << "floor " << floorNumber 
        << " button summons elevator" << endl;
   elevatorRef.summonElevator( floorNumber );
}

// reset the button
void FloorButton::resetButton() 
{ pressed = false; }

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