videotypeimp.cpp

C++编成数据结构与程序设计方法 D.S.Malk编著

#include <iostream>
#include <string>
#include "videoType.h"

using namespace std;

void videoType::setVideoInfo(string title, string star1,
							 string star2, string producer,                               string director,
                             string productionCo,
							 int setInStock)
{
    videoTitle = title;
    movieStar1 = star1;
    movieStar2 = star2;
    movieProducer = producer;
    movieDirector = director;
    movieProductionCo = productionCo;
    copiesInStock = setInStock;
}

void videoType::checkOut()
{
    if (getNoOfCopiesInStock() > 0)
        copiesInStock--;
    else
        cout << "Currently out of stock." << endl;
}

void videoType::checkIn()
{
    copiesInStock++;
}

int videoType::getNoOfCopiesInStock() const
{
    return copiesInStock;
}

void videoType::printTitle() const
{
    cout << "Video Title: " << videoTitle << endl;
}

void videoType::printInfo() const
{
    cout << "Video Title: " << videoTitle << endl;
    cout << "Stars: " << movieStar1 << " and " 
         << movieStar2 << endl;
    cout << "Producer: " << movieProducer << endl;
    cout << "Director: " << movieDirector << endl;
    cout << "Production Company: " << movieProductionCo
         << endl;
    cout << "Copies in stock: " << copiesInStock
         << endl;
}

bool videoType::checkTitle(string title)
{
    return(videoTitle == title);
}

void videoType::updateInStock(int num)
{
    copiesInStock += num;
}

void videoType::setCopiesInStock(int num)
{
    copiesInStock = num;
}

string videoType::getTitle() const
{
    return videoTitle;
}

videoType::videoType(string title, string star1, 
                     string star2, string producer, 
                     string director,
                     string productionCo, int setInStock)
{
    setVideoInfo(title, star1, star2, producer, director,
                 productionCo, setInStock);
}

    //Overload the relational operators
bool videoType::operator==(const videoType& right) const
{
    return (videoTitle == right.videoTitle);
}

bool videoType::operator!=(const videoType& right) const
{
    return (videoTitle != right.videoTitle);
}

bool videoType::operator<(const videoType& right) const
{
    return (videoTitle < right.videoTitle);
}

bool videoType::operator<=(const videoType& right) const
{
    return (videoTitle <= right.videoTitle);
}

bool videoType::operator>(const videoType& right) const
{
    return (videoTitle > right.videoTitle);
}

bool videoType::operator>=(const videoType& right) const
{
    return (videoTitle >= right.videoTitle);
}

ostream& operator<< (ostream& osObject, const videoType& video)
{
    osObject << endl;
    osObject << "Video Title: " << video.videoTitle << endl;
    osObject << "Stars: " << video.movieStar1 << " and "
         << video.movieStar2 << endl;
    osObject << "Producer: " << video.movieProducer << endl;
    osObject << "Director: " << video.movieDirector << endl;
    osObject << "Production Company: "
             << video.movieProductionCo << endl;
    osObject << "Copies in stock: " << video.copiesInStock 
             << endl;
    osObject << "_____________________________________" 
             << endl;

    return osObject;
}