QT作业3

完善对话框,点击登录对话框,如果账号和密码匹配,则弹出信息对话框,给出提示”登录成功“,提供一个Ok按钮,用户点击Ok后,关闭登录界面,跳转到其他界面

如果账号和密码不匹配,弹出错误对话框,给出信息”账号和密码不匹配,是否重新登录“,并提供两个按钮Yes|No,用户点击Yes后,清除密码框中的内容,继续让用户进行登录,如果用户点击No按钮,则直接关闭登录界面

如果用户点击取消按钮,则弹出一个问题对话框,给出信息”您是否确定要退出登录?“,并给出两个按钮Yes|No,用户点击Yes后,关闭登录界面,用户点击No后,关闭对话框,继续执行登录功能

要求:基于属性版和基于静态成员函数版至少各用一个

代码:

主函数文件:

#include "widget.h"
#include "loginsuccess.h"

#include 

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();
    //登录成功界面
    loginsuccess s;
    //连接信号与槽
    QObject::connect(&w,&Widget::my_jump,&s,&loginsuccess::my_show);
    return a.exec();
}

登录界面源文件:

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

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    //纯净模式
    this->setWindowFlag(Qt::FramelessWindowHint);
    this->setAttribute(Qt::WA_TranslucentBackground);
    this->setWindowIcon(QIcon(":/Logo/1.jpg"));

}

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

//cancel按钮槽函数
void Widget::on_pushButton_2_clicked()
{
    //消息对话框( 基于属性版本)
    QMessageBox msg(QMessageBox::Question,"问题窗口","请确定是否取消登录",QMessageBox::Yes | QMessageBox::No,this);
    //调用exec()弹出对话框
    int ret = msg.exec();
    if(ret == QMessageBox::Yes){
        //关闭当前窗口
        this->close();
    }
}

void Widget::on_pushButton_clicked()
{
    //消息对话框(基于静态成员函数版本)
    if(ui->lineEdit->text() == "admin" && ui->lineEdit_2->text() == "123456"){
        int ret = QMessageBox::information(this,"信息窗口","登录成功",QMessageBox::Yes);
        if(ret == QMessageBox::Yes){
            //关闭当前窗口
            this->close();
            emit my_jump();
        }
    }else{
        //消息对话框(基于静态成员函数版本)
        int ret = QMessageBox::critical(this,"错误窗口","账号与密码不匹配,是否重新登录",QMessageBox::Yes | QMessageBox::No);
        if(ret == QMessageBox::No){
            //关闭当前窗口
            this->close();
        }
    }
}

登录成功界面源文件:

#include "loginsuccess.h"
#include "ui_loginsuccess.h"

loginsuccess::loginsuccess(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::loginsuccess)
{
    ui->setupUi(this);
}

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

//自定义槽函数实现
void loginsuccess::my_show()
{
    //展示当前窗口
    this->show();
}

登录界面头文件:

#ifndef WIDGET_H
#define WIDGET_H

#include 
#include 

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();

signals:
    void my_jump();  //自定义信号函数

private slots:
    void on_pushButton_2_clicked();

    void on_pushButton_clicked();

private:
    Ui::Widget *ui;
};
#endif // WIDGET_H

登录成功界面头文件:

#ifndef LOGINSUCCESS_H
#define LOGINSUCCESS_H

#include 
#include 

namespace Ui {
class loginsuccess;
}

class loginsuccess : public QWidget
{
    Q_OBJECT

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

public slots:
    void my_show();  //自定义槽函数

private:
    Ui::loginsuccess *ui;
};

#endif // LOGINSUCCESS_H

登录界面ui设计编辑样式表:

*{
	background-color: rgb(255, 255, 255);
}

QFrame#frame{
	border-image: url(:/Logo/wanXia.jpg);
	border-radius:30px;
}
#frame_2{
	background-color: rgba(132, 132, 132, 120);
	border-radius:30px;
}

QLabel#label{
	background-color: rgba(116, 116, 116, 130);
	border-radius:30px;
}
#label_2{
	background:transparent;	
	color: rgba(255, 255, 255, 120);
}
#label_3{
	background:transparent;	
	color: rgba(255, 255, 255, 120);
	font: 9pt "仿宋";
}

QLineEdit{
	background:transparent;
	border:none;
	border-bottom:1px solid rgba(255, 255, 255, 150);
	
	font: 14pt "仿宋";
	color: rgba(255, 255, 255, 120);
}

QPushButton#pushButton{
	border-radius:10px;
	
	color: rgba(255, 255, 255, 180);
	background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:1, stop:0 rgba(242, 198, 208, 255), stop:1 rgba(255, 255, 215, 220));
	font: 14pt "仿宋";
}
QPushButton#pushButton:hover{
	border-radius:10px;
	
	color: rgba(255, 255, 255, 180);
	background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:1, stop:0 rgba(242, 168, 208, 255), stop:1 rgba(255, 255, 215, 220));
	font: 14pt "仿宋";
}
QPushButton#pushButton:pressed{
	border-radius:10px;
	
	color: rgba(255, 255, 255, 180);
	background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:1, stop:0 rgba(242, 198, 208, 255), stop:1 rgba(255, 255, 215, 220));
	font: 14pt "仿宋";
	padding-top:5px;
	padding-left:5px;
}

#pushButton_2{
	border-radius:10px;
	
	color: rgba(255, 255, 255, 180);
	background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:1, stop:0 rgba(242, 198, 208, 255), stop:1 rgba(255, 255, 215, 220));
	font: 14pt "仿宋";
}
#pushButton_2:hover{
	border-radius:10px;
	
	color: rgba(255, 255, 255, 180);
	background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:1, stop:0 rgba(242, 168, 208, 255), stop:1 rgba(255, 255, 215, 220));
	font: 14pt "仿宋";
}
#pushButton_2:pressed{
	border-radius:10px;
	
	color: rgba(255, 255, 255, 180);
	background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:1, stop:0 rgba(242, 198, 208, 255), stop:1 rgba(255, 255, 215, 220));
	font: 14pt "仿宋";
	padding-top:5px;
	padding-left:5px;
}

运行结果:

取消功能:

登录失败:

登录成功:

思维导图:

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