qt 登录页面点击事件

 实现

#include "loginwidget.h"
#include "ui_loginwidget.h"
#define Account "admin"
#define Pwd "123456"
#include 

LoginWidget::LoginWidget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::LoginWidget)
{
    ui->setupUi(this);
    this->setWindowTitle("有道笔记");
    this->setWindowIcon(QIcon(":/pictrue/logo_icon.png"));
    //    this->setStyleSheet("background-color:white;border-radius:10px");
    this->setStyleSheet("background-color:white;border-radius:10px");
    this->resize(788,1243);
    this->setFixedSize(788,1243);
    this->setWindowFlag(Qt::FramelessWindowHint);//隐藏表头

    QLabel * lab1 = new QLabel(this);
    lab1->resize(150,150);
    lab1->move(638,5);
    //    lab1->setStyleSheet("background-color:red");
    lab1->setPixmap(QPixmap(":pictrue\\right_top.png"));
    lab1->setScaledContents(true);//图片自适应

    topBtn = new QPushButton(this);
    topBtn->resize(lab1->width(),lab1->height());
    topBtn->move(lab1->x(),lab1->y());
    topBtn->setStyleSheet("background:transparent");
    connect(topBtn,&QPushButton::clicked,this,&LoginWidget::change);


    QLabel * lab2 = new QLabel(this);
    lab2->resize(230,230);
    lab2->move(269,85);
    //    lab2->setStyleSheet("background-color:red");
    lab2->setPixmap(QPixmap(":/pictrue/logo.png"));
    lab2->setScaledContents(true);//图片自适应

    edit1 = new QLineEdit(this);
    edit1->setPlaceholderText("  请输入邮箱账号");
    edit1->setStyleSheet("barder-radius:10px;border: 1px solid gray;");
    edit1->resize(630,70);
    edit1->move(75,365);
    edit1->setMaxLength(18);

    edit2 = new QLineEdit(this);
    edit2->setPlaceholderText("  请输入邮箱密码");
    edit2->setStyleSheet("barder-radius:10px;border: 1px solid gray;");
    edit2->resize(630,70);
    edit2->move(75,465);
    edit2->setMaxLength(18);
    edit2->setEchoMode(QLineEdit::Password);

    QPushButton * btn1 = new QPushButton(this);
    btn1->setText("登录");
    btn1->setStyleSheet("background-color:rgb(101,136,246);border-radius:10px;color:white");
    btn1->resize(630,70);
    btn1->move(75,665);
    connect(btn1,&QPushButton::clicked,this,&LoginWidget::login);


    btn2 = new QPushButton(this);
    btn2->setText("手机号登录");
    btn2->setStyleSheet("background-color:rgb(241,243,245);border-radius:10px;");
    btn2->resize(630,70);
    btn2->move(75,775);


    QLabel * lab3 = new QLabel(this);
    lab3->resize(666,294);
    lab3->move(70,926);
    //    lab2->setStyleSheet("background-color:red");
    lab3->setPixmap(QPixmap(":/pictrue/bottom.png"));
    lab3->setScaledContents(true);//图片自适应



    lab4 = new QLabel(this);
    lab4->resize(722,1125);
    lab4->move(28,105);
    //    lab1->setStyleSheet("background-color:red");
    lab4->setPixmap(QPixmap(":pictrue\\ewm.png"));
    lab4->setScaledContents(true);//图片自适应
    lab4->setHidden(true);

}

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

void LoginWidget::close_fun()
{
        this->close();

}

void LoginWidget::login()
{

    if(this->edit1->text() == Account && this->edit2->text() == Pwd  ){
        qDebug()<<"login success";
        this->close();
    }else {
        if(this->edit1->text().size()!=0){
            this->edit1->clear();
        }

        this->edit2->clear();
        qDebug()<<"login faild";
    }

}

void LoginWidget::change()
{
   static int type = 0;
   if(type == 0){
     this->lab4->setHidden(false);
     type = 1;
     return;
   }
   if(type == 1){
     this->lab4->setHidden(true);
       type = 0;
       return;
   }


}

声明

#ifndef LOGINWIDGET_H
#define LOGINWIDGET_H

#include 
#include 
#include 
#include 
#include 

namespace Ui {
class LoginWidget;
}

class LoginWidget : public QWidget
{
    Q_OBJECT

public:
    explicit LoginWidget(QWidget *parent = nullptr);
    ~LoginWidget();

    //槽函数
public slots:
    void close_fun();
    void login();
    void change();
signals:
    void my_signal();
private:
    Ui::LoginWidget *ui;
    QLabel * lab1;
    QPushButton *topBtn;
    QPushButton * btn2;
    QLineEdit * edit1 ;
    QLineEdit * edit2;
    QLabel * lab4 ;

};

#endif // LOGINWIDGET_H