day0918

#include 
#include 
 
 
QT_BEGIN_NAMESPACE
namespace Ui { class hqyj; }
QT_END_NAMESPACE
 
class hqyj : public QWidget
{
    Q_OBJECT
 
public:
    hqyj(QWidget *parent = nullptr);
    ~hqyj();
signals:
    void jumpToLogin();
public slots:
    void loginBtn_slot();
    void cancelBtn_slot();
 
private:
    Ui::hqyj *ui;
 
    QLabel*lab1 = new QLabel(this);
    QLineEdit *edit1 = new QLineEdit(this);
    QLineEdit *edit2 = new QLineEdit(this);
    QLabel *lab2 = new QLabel(this);
    QLabel *lab3 = new QLabel(this);
    QPushButton *btn1 = new QPushButton("登录",this);
    QPushButton *btn2 = new QPushButton("取消",this);
    login *l1 = new login;;
};
#endif // HQYJ_H

#ifndef LOGIN_H
#define LOGIN_H
 
#include 
 
namespace Ui {
class login;
}
 
class login : public QDialog
{
    Q_OBJECT
public slots:
    void jumpToLogin_slot();
public:
    explicit login(QWidget *parent = nullptr);
    ~login();
 
private:
    Ui::login *ui;
};
 
#endif // LOGIN_H

#include "hqyj.h"
#include 
#include 
#include "ui_hqyj.h"
hqyj::hqyj(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::hqyj)
 
{
    ui->setupUi(this);
 
   this->setWindowTitle("Widget");
   this->setWindowIcon(QIcon("D:\\230906C++&Qt\\icon\\wodepeizhenshi.png"));
   this->setFixedSize(QSize(400,300));
 
 
   lab1->resize(QSize(400,133));
   lab1->move(0,0);
   lab1->setPixmap(QPixmap("D:\\230906C++&Qt\\icon\\logo.png"));
   lab1->setScaledContents(true);
   
 
   edit1->resize(QSize(240,40));
   edit1->move(110,150);
   edit1->setPlaceholderText("账号");
 
 
   edit2->resize(QSize(240,40));
   edit2->move(edit1->x(),edit1->y()+55);
   edit2->setPlaceholderText("密码");
   edit2->setEchoMode(QLineEdit::Password);
 
 
   lab2->resize(50,40);
   lab2->setPixmap(QPixmap("D:\\230906C++&Qt\\icon\\userName.jpg"));
   lab2->setScaledContents(true);
   lab2->move(edit1->x()-60,edit1->y());
 
 
   lab3->resize(50,40);
   lab3->setPixmap(QPixmap("D:\\230906C++&Qt\\icon\\passwd.jpg"));
   lab3->setScaledContents(true);
   lab3->move(edit2->x()-60,edit2->y());
 
 
 
   btn1->resize(QSize(60,30));
   btn2->resize(btn1->size());
 
   btn1->move(120,edit2->y()+55);
   btn2->move(btn1->x()+120,edit2->y()+55);
 
   btn1->setIcon(QIcon("D:\\230906C++&Qt\\icon\\login.png"));
   btn2->setIcon(QIcon("D:\\230906C++&Qt\\icon\\cancel.png"));
 
   connect(btn1,&QPushButton::clicked,this,&hqyj::loginBtn_slot);
   connect(btn2,&QPushButton::clicked,this,&hqyj::cancelBtn_slot);
   connect(this,&hqyj::jumpToLogin,l1,&login::jumpToLogin_slot);
}
 
hqyj::~hqyj()
{
    delete ui;
}
void hqyj::loginBtn_slot()
{
    if(edit1->text()==QString("damin")&&edit2->text()==QString("123456"))
    {
        QMessageBox box(QMessageBox::Information,
                        "登录成功",
                        "登录成功",
                        QMessageBox::Ok,
                        this);
        box.exec();
        emit this->jumpToLogin();
        this->close();
    }else
    {
        QMessageBox box(QMessageBox::Critical,
                        "错误",
                        "账号密码不匹配，是否重新登录",
                        QMessageBox::Ok|QMessageBox::Cancel,
                        this);
        box.setDefaultButton(QMessageBox::Ok);
        int ret = box.exec();
        if(QMessageBox::Ok==ret)
        {
            edit2->clear();
        }else
            this->close();
    }
}
 
void hqyj::cancelBtn_slot()
{
    int ret = QMessageBox::question(this,
                                    "请问",
                                    "是否确认要退出",
                                    QMessageBox::Yes|QMessageBox::No,
                                    QMessageBox::No);
    switch(ret)
    {
    case QMessageBox::Yes:
        this->close();
        break;
    case QMessageBox::No:
        break;
    default:
        break;
    }
}

#include "login.h"
#include "ui_login.h"
 
login::login(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::login)
{
    ui->setupUi(this);
}
 
login::~login()
{
    delete ui;
}
 
void login::jumpToLogin_slot()
{
    this->show();
}