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widget.h
- #ifndef WIDGET_H
- #define WIDGET_H
-
- #include <QWidget>
- #include <QDebug> //用于打印输出
- #include <QIcon> //图标头文件
- #include <QPushButton> //按钮类头文件
- #include <QLineEdit> //行编辑器类
- #include <QLabel> //标签文件
-
- class Widget : public QWidget
- {
- Q_OBJECT
-
- public:
- Widget(QWidget *parent = nullptr);
- ~Widget();
-
- //标签类
- QLabel *lab1;
- QLabel *lab2;
- QLabel *lab3;
-
- //行编辑器类
- QLineEdit *edit1;
- QLineEdit *edit2;
-
- //按钮类
- QPushButton *btn1;
- QPushButton *btn2;
-
- //自定义信号
- signals:
- void jump(); //跳转信号
-
- public slots:
- void cancel_slot();
- void login_slot();
-
- };
- #endif // WIDGET_H
second.h
- #ifndef SECOND_H
- #define SECOND_H
-
- #include <QWidget>
- #include <QDebug> //用于打印输出
- #include <QIcon> //图标头文件
- #include <QPushButton> //按钮类头文件
- #include <QLineEdit> //行编辑器类
- #include <QLabel> //标签文件
-
-
- namespace Ui {
- class Second;
- }
-
- class Second : public QWidget
- {
- Q_OBJECT
-
- public:
- explicit Second(QWidget *parent = nullptr);
- ~Second();
-
- //标签类
- QLabel *lab1;
-
- public slots:
- void jump_slot();
-
- private:
- Ui::Second *ui;
- };
-
- #endif // SECOND_H
widget.cpp
- #include "widget.h"
-
- Widget::Widget(QWidget *parent)
- : QWidget(parent)
- {
- //设置整体大小、标题及图标
- this->setFixedSize(700, 600);
- this->setWindowTitle("IKUN真爱小屋❤");
- this->setWindowIcon(QIcon(":/icon/1.jpeg"));
- this->setWindowOpacity(0.95); //设置透明度
-
- //设置Logo标签
- lab1 = new QLabel(this);
- lab1->resize(700,200);
- lab1->setPixmap(QPixmap(":/icon/2.JPG"));
- lab1->setScaledContents(true); //设置内容自适应
-
- //设置用户和密码所图标
- lab2 = new QLabel(this);
- lab2->resize(50,50);
- lab2->setPixmap(QPixmap(":/icon/username.png"));
- lab2->setScaledContents(true);
- lab2->move(150,260);
-
- lab3 = new QLabel(this);
- lab3->resize(50,50);
- lab3->setPixmap(QPixmap(":/icon/passwd.jpg"));
- lab3->setScaledContents(true);
- lab3->move(150,360);
-
- //设置行编辑器
- edit1 = new QLineEdit(this);
- edit1->resize(190, 40);
- edit1->move(280, 265);
- edit1->setStyleSheet("border : none; "
- "border-bottom: 2px solid grey;");
- edit1->setPlaceholderText("账号:");
-
- edit2 = new QLineEdit(this);
- edit2->resize(190, 40);
- edit2->move(280, 365);
- edit2->setStyleSheet("border : none; "
- "border-bottom: 2px solid grey;");
- edit2->setPlaceholderText("密码:");
- edit2->setEchoMode(QLineEdit::Password);
-
- //设置按钮 登录
- btn1 = new QPushButton(this);
- btn1->setText("登录");
- btn1->resize(130,40);
- btn1->move(150, 490);
- btn1->setIcon(QIcon(":/icon/login.png"));
- //手动将登录与自定义的槽函数进行连接,该连接是友好的连接qt-5
- connect(btn1, &QPushButton::clicked, this, &Widget::login_slot);
-
- //设置按钮 取消
- btn2 = new QPushButton(this);
- btn2->setText("取消");
- btn2->resize(130,40);
- btn2->move(440, 490);
- btn2->setIcon(QIcon(":/icon/cancel.png"));
- //手动将取消按钮的clicked信号与自定义的槽函数进行连接-qt4
- connect(btn2, SIGNAL(clicked()), this, SLOT(cancel_slot()));
-
- }
-
- Widget::~Widget()
- {
- }
-
- //自定义槽函数的实现
- void Widget::cancel_slot(){
- this->close();
- }
-
- //自定义槽函数的实现
- void Widget::login_slot(){
- if(this->edit1->text() == "admin" && this->edit2->text() == "123456"){
- qDebug() << "登陆成功!";
- emit jump(); //发射跳转函数信号
- this->close();
- }else{
- qDebug() << "登陆失败,请重新登录!";
- this->edit2->clear();
- }
- }
-
second.cpp
- #include "second.h"
- #include "ui_second.h"
-
- Second::Second(QWidget *parent) :
- QWidget(parent),
- ui(new Ui::Second)
- {
- ui->setupUi(this);
-
- //整体设置
- this->setWindowTitle("登录成功提示");
- this->setWindowIcon(QIcon(":/icon/3.jpeg"));
-
- //设置跳转标签
- lab1 = new QLabel(this);
- lab1->setText("登陆成功!");
- lab1->resize(390,300);
- lab1->setAlignment(Qt::AlignCenter);
- }
-
- Second::~Second()
- {
- delete ui;
- }
-
- //跳转槽信号
- void Second::jump_slot()
- {
- this->show();
- }
-
main.cpp
- #include "widget.h"
- #include "second.h"
- #include <QApplication>
-
- int main(int argc, char *argv[])
- {
- QApplication a(argc, argv);
- Widget w;
- w.show();
-
- Second s; //实例化第二个界面
-
- //将第一个界面发射信号与第二个界面的展示槽函数连接
- QObject::connect(&w, &Widget::jump, &s, &Second::jump_slot);
-
- return a.exec();
- }
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