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 <QApplication>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 <QWidget>
#include <QMessageBox>QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACEclass Widget : public QWidget
{Q_OBJECTpublic: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 <QWidget>
#include <QMessageBox>namespace Ui {
class loginsuccess;
}class loginsuccess : public QWidget
{Q_OBJECTpublic: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：