widget.cpp

#include "widget.h"
#include "ui_widget.h"
#include "structure.h"
#include "function.h"
#include <QLabel>
#include <QLineEdit>
#include <QString>
#include <QButtonGroup>
#include <QMessageBox>
#include <QFont>
#include <QOverload>
//食物数量，套餐数量，关闭与开放系统的阈值
int N,M,n,maxOrder,minOrder;
//食物数组
FOOD foods[MAX_FOODS];
//套餐数组
SET sets[MAX_SETS];
//订单数组
ORDER orders[MAX_ORDERS];
//完成时间的数组
int completed_time[MAX_ORDERS];
int ordercount=0;
//初始化ui
void initUi(Ui::Widget* ui);
//将食物加入菜单
void initFood(FILE* menu,Ui::Widget* ui);
//将套餐加入菜单
void initSet(FILE* menu,Ui::Widget* ui);
//制作食物
void addFood();
//分配食物
void deliverFood(NODE** foodList,NODE** lastFood);
//上传到队列
void updateFoodList(NODE** lastFood,int prs);


Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    //初始化变量
    T=1000;
    ui->setupUi(this);
    initUi(ui);
    FILE* menu=fopen("dict.dic","r");
    fscanf(menu,"%d %d",&N,&M);
    initFood(menu,ui);
    fscanf(menu,"%d%d",&maxOrder,&minOrder);
    initSet(menu,ui);
    fclose(menu);
    //把按钮加到按钮组
    buttons=new QButtonGroup();
    for(int i=0;i<M+N;i++){
        QPushButton *confirm=this->findChild<QPushButton*>("confirm"+QString::number(i));
        buttons->addButton(confirm,i);
    }
    foodList=createList(N);
    lastFood=createLastNode(foodList,N);
    waitingOrder=(NODE*)malloc(sizeof(NODE));
    waitingOrder->next=NULL;
    lastOrder=waitingOrder;
    timer=new QTimer;
    Widget::timeoutSlot();
    //连接信号与槽
    connect(buttons, &QButtonGroup::buttonClicked, this, [=](QAbstractButton* button){
        int id = buttons->id(button);
        this->purchase(id);
    });
}

Widget::~Widget()
{
    delete ui;
}

//处理订单
void Widget::timeoutSlot()
{
    int second = sec % 60;
    int min = (sec/60) % 60;
    int hour = (sec/3600)%24+7;
    QString timestr = QString("%1:%2:%3")
                          .arg(hour, 2, 10, QChar('0'))
                          .arg(min, 2, 10, QChar('0'))
                          .arg(second, 2, 10, QChar('0'));
    ui->lineEdit->setText(timestr);
    //制作食物
    addFood();
    //当前时刻产生新的订单
    if(!reception){
        lastOrder=addNode(prs,lastOrder);
        waitNum++;
        updateFoodList(lastFood,prs);
        prs++;
        reception=1;
    }
    //将食物按队列顺序分配给等待的订单并同步食物数量
    deliverFood(foodList,lastFood);
    //遍历等待订单的队列，检查各订单是否完成
    ui->textEdit->clear();
    for(NODE* cur=waitingOrder;cur->next!=NULL;){
        //若已完成，将其从队列删除并同步状态，记录时间
        if(orders[cur->next->num].foodState==0){
            ui->textEdit_2->append( QString::number(cur->next->num+10001));
            waitNum--;
            completed_time[orders[cur->next->num].count]=sec;
            lastOrder=deleteNode(cur,lastOrder);
        }
        else{
            ui->textEdit->append( QString::number(cur->next->num+10001));
            cur=cur->next;
        }
    }
    for(int i=0;i<N;i++){
         QLineEdit *quan=this->findChild<QLineEdit*>("quan"+QString::number(i));
         quan->setText(QString::number(foods[i].quan));
         QLineEdit *foodState=this->findChild<QLineEdit*>("foodState"+QString::number(i));
         if(foods[i].producingState){
             foodState->setText("生产中");
         }
         else{
             foodState->setText("已停产");
         }
    }
    //检查当前等待订单数，决定开放或关闭系统
    switch(state){
        case 1:if(waitNum>maxOrder) state=0;break;
        case 0:if(waitNum<minOrder) state=1;break;
    }
    sec++;
}




//启动计时
void Widget::on_startButton_clicked()
{
    QTimer::singleShot(T,this,SLOT(timeoutSlot()));
    QTimer::singleShot(T,this,SLOT(on_startButton_clicked()));
}
//退出系统
void Widget::on_exitButton_clicked()
{
    this->close();
    FILE *fp=fopen("output.txt","w");
    for(int i=1;i<=ordercount;i++){
        if(completed_time[i]==-1)
            fprintf(fp,"Fail\n");
        else
            fprintf(fp,"%02d:%02d:%02d\n", (completed_time[i]/3600)%24+7,(completed_time[i]/60)%60,completed_time[i]%60);
    }
    fclose(fp);
}
//下单
void Widget::purchase(int num)
{
    if(reception&&state){
        orders[prs].type=num;
        orders[prs].foodState=sets[orders[prs].type].size;
        ordercount++;
        orders[prs].count=ordercount;
        reception=0;
        QMessageBox::information(this, "",tr("点餐成功，订单编号：%1").arg(prs+10001));
    }
    else if(!reception){
        QMessageBox::information(this,"","系统繁忙，请稍后再试");
    }
    else{
        ordercount++;
        completed_time[ordercount]=-1;
        QMessageBox::information(this,"","系统已关闭，点餐失败");
    }
}
//更改倍速
void Widget::on_spinBox_valueChanged(int arg1)
{
    T=1000/arg1;
}