elevatorbutton.cpp

《c＋＋大学教程》源码

// Fig. 7.38: elevatorButton.cpp: 
// Member-function definitions for class ElevatorButton.
#include <iostream>

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

#include "elevatorButton.h"  // ElevatorButton class definition
#include "elevator.h"        // Elevator class definition

// constructor
ElevatorButton::ElevatorButton( Elevator &elevatorHandle )
   : pressed( false ), 
     elevatorRef( elevatorHandle )
{ 
   cout << "elevator button constructed" << endl; 

} // end ElevatorButton constructor

// destructor
ElevatorButton::~ElevatorButton() 
{ 
   cout << "elevator button destructed" << endl; 

} // end ~ElevatorButton destructor

// press button and signal elevator to prepare to leave floor
void ElevatorButton::pressButton() 
{
   pressed = true;
   cout << "elevator button tells elevator to prepare to leave" 
        << endl;
   elevatorRef.prepareToLeave( true );

} // end function pressButton

// reset button
void ElevatorButton::resetButton() 
{ 
   pressed = false; 

} // end function resetButton

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