qtday3

widget.cpp

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    QMovie *mv = new QMovie(":/pictrue/xhr.gif");
    ui->lab1->setMovie(mv);
    mv->start();
    ui->lineEdit->setPlaceholderText("账号");
    ui->lineEdit_2->setPlaceholderText("密码");
}

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

void Widget::my_close()
{
    emit this->my_signal();
    this->close();
}


void Widget::on_pushButton_clicked()
{
    if(ui->lineEdit->text()=="admin" && ui->lineEdit_2->text() =="123456")
    {
      int res =  QMessageBox::information(this,"提示","登陆成功",QMessageBox::Ok);
       if(res == QMessageBox::Ok)
       {
           emit this->my_signal();
           this->close();
       }
    }
    else
    {

        int res = QMessageBox::critical(this,"错误","账号密码错误",QMessageBox::Yes | QMessageBox ::No);
        if(res == QMessageBox::Yes)
        {
            ui->lineEdit->setText("");
            ui->lineEdit_2->setText("");
        }
        else
        {
            this->close();
        }

    }
}

void Widget::on_quit_clicked()
{
//    QMessageBox box1(
//                QMessageBox::information,
//                "提示",
//                "您是否确定要退出",
//                QMessageBox::Yes | QMessageBox::No,
//                this);
//    int res= box1.exec();
    int res = QMessageBox::information(this,"提示","您是否确定要退出",QMessageBox::Yes | QMessageBox ::No);
    if(res == QMessageBox::Yes)
    {
        this->close();
    }
}