videolisttype.cpp

光盘出租管理系统

#include "videoListType.h"
#include <iostream.h>


bool videoListType::isVideoAvailable(newString title)       //检查某张影碟数量是否>1
{
	bool found;
	nodeType<videoType>* location;
	searchVideoList(title,found,location);                  //注意searchVideoList中的
	                                                        //found 要用引用才能改变值
	if(found)                                               
		found = (location->info.getNoOfCopiesInStock() > 0);
	else
		found = false;
	return found;
}

void videoListType::videoCheckIn(newString title)            //返还一张碟
{
	bool found = false;
	nodeType<videoType>* location;
	searchVideoList(title,found,location);
	if(found)
		location->info.checkIn();                            //注意，用了videoType中的checkIn
	else
		cout<<"Video not in stock 此碟不是本商店的"<<endl;
}

void videoListType::videoCheckOut(newString title)           //出租一张碟
{
	bool found = false;
	nodeType<videoType>* location;
	searchVideoList(title,found,location);
	if(found)
		location->info.checkOut();                           //注意用了videoType中的checkOut

	else
		cout<<"Video not in stock 商店没有此碟"<<endl;

}

bool videoListType::videoCheckTitle(newString title)         //查找库中有没有此碟
{
	bool found = false;
	nodeType<videoType>* location;
	searchVideoList(title,found,location);

	return found;
}

void videoListType::videoUpdateInStock(newString title,int num)//增加某张碟的数量
{
	bool found = false;
	nodeType<videoType>* location;
	searchVideoList(title,found,location);
	if(found)
		location->info.updateInStock(num);                    //更新                 
	else
		cout<<"Video not in stock库中并没有此碟"<<endl;
}

void videoListType::videoSetCopiesInStock(newString title,int num)//设置某张碟的数量
{
	bool found = false;
	nodeType<videoType>* location;
	searchVideoList(title,found,location);
	if(found)
		location->info.setCopiesInStock(num);                 //设置
	else
		cout<<"Video not in stock"<<endl;
}

bool videoListType::videoSearch(newString title)             //查看库中是否有此碟
{
	bool found = false;
	nodeType<videoType>* location;
	searchVideoList(title,found,location);
	return found;
}

void videoListType::videoPrintTitle()                          //打印所有碟的名字
{
	nodeType<videoType>* current;
	current = first;
	while(current != NULL)
	{
		current->info.printTitle();
		current = current->link;
	}
}

void videoListType::videoPrintInfo(newString title)             //自己增加的函数
{
	bool found = false;
	nodeType<videoType>* location;
	searchVideoList(title,found,location);
	if(found)
		location->info.printInfo();
}


void videoListType::searchVideoList(newString title,bool& found,
									nodeType<videoType>* &current)
{
	found = false;
	if(first == NULL)
		cout<<"Cannot search an empty list."<<endl;
	else
	{
		current = first;	    
		while(!found && current !=NULL)
		{
			if(current->info.checkTitle(title))
				found = true;
			else
				current = current->link;
		}
	}
}


void videoListType::insertVideo()
{/*custType customer;
	newString acctno;
	newString fname;
	newString lname;
	cout<<"请输入帐号：";
	cin>>acctno;
	while(seachAcctNo(acctno))                             //用到了上面的seachAccNo函数！！！
	{
		cout<<"你所输入的帐号已经存在，请重新输入！";
		cout<<"请输入帐号：";
		cin>>acctno;
	}

	cout<<"请输入名字：";
	cin>>fname;
	cout<<"请输入姓氏：";
	cin>>lname;
	customer.setCustInfo(acctno,fname,lname," "," "," ");
	insertFirst(customer);*/
	videoType video;
	newString title;
	newString star1;
	newString star2;
	newString producer;
	newString director;
	newString productionCo;
	int copiesinstock;
	cout<<"请输入影碟名:";
	cin>>title;
	cout<<"请输入主演1:";
	cin>>star1;
	cout<<"请输入主演2:";
	cin>>star2;
	cout<<"请输入制片人:";
	cin>>producer;
	cout<<"请输入导演:";
	cin>>director;
	cout<<"请输入制片厂:";
	cin>>productionCo;
	cout<<"请输入库存量:";
	cin>>copiesinstock;
	video.setVideoInfo(title,star1,star2,producer,director,productionCo,copiesinstock);
	insertFirst(video);
}