widget.h
#ifndef WIDGET_H
#define WIDGET_H
#include <QWidget>
#include <QMainWindow>
#include <QString>
#include <QDebug>
#include <QIcon>
#include <QPushButton>//按钮
#include <QLineEdit>//文本框
#include <QLabel>//标签
#include <QCheckBox>
#include <QMessageBox>
namespace Ui {
class Widget;
}
class Widget : public QWidget
{
Q_OBJECT
signals: //该权限下定义的都是信号函数
void mysignal(); //信号函数
public slots:
void myslots(); //定义了一个槽函数
void my_slots();
public:
explicit Widget(QWidget *parent = nullptr);
~Widget();
QLabel *l1,*l2,*l3,*l4,*l5,*l7,*l6;//文本标签
QPushButton *b1,*b2;//按钮
QLineEdit *le1,*le2;//input框
QCheckBox *cb1,*cb2;//复选框
private:
Ui::Widget *ui;
};
#endif // WIDGET_H
chat.h
#ifndef CHAT_H
#define CHAT_H
#include <QWidget>
#include <QMainWindow>
#include <QString>
#include <QDebug>
#include <QIcon>
#include <QPushButton>//按钮
#include <QLineEdit>//文本框
#include <QLabel>//标签
#include <QCheckBox>
#include <QMessageBox>
namespace Ui {
class chat;
}
class chat : public QWidget
{
Q_OBJECT
public:
explicit chat(QWidget *parent = nullptr);
~chat();
QPushButton *b1;
public slots:
void chat_slot();
void login_out();
private:
Ui::chat *ui;
};
#endif // CHAT_H
chat.cpp
#include "chat.h"
#include "ui_chat.h"
chat::chat(QWidget *parent) :
QWidget(parent),
ui(new Ui::chat)
{
//ui->setupUi(this);
this->resize(350,600);
this->setWindowFlag(Qt::FramelessWindowHint);
b1 = new QPushButton(this);
b1 -> setIcon(QIcon(":/icon_/icon/denglu_1.png"));
b1->setStyleSheet("border-style: none;");
b1->resize(30,30);
b1->move(320,0);
connect(this->b1,&QPushButton::clicked,this,&chat::login_out);
}
chat::~chat()
{
delete ui;
}
void chat::chat_slot()
{
this->show();
}
void chat::login_out()
{
QMessageBox::StandardButtons ret = QMessageBox::question(this,
"提示","是否退出登录",
QMessageBox::Yes|QMessageBox::Cancel,
QMessageBox::Yes);
if(ret == QMessageBox::Yes){
this->close();
}
}
main.cpp
#include "widget.h"
#include <QApplication>
#include "chat.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
Widget w;
w.show();
chat c;
QObject::connect(&w,&Widget::mysignal,&c,&chat::chat_slot);
return a.exec();
}
widget.h
#include "widget.h"
#include "ui_widget.h"
Widget::Widget(QWidget *parent) :
QWidget(parent),
ui(new Ui::Widget)
{
//ui->setupUi(this);
//设置窗口大小
this->setFixedSize(430,340);
//设置icon
this->setWindowIcon(QIcon(":/icon_/icon/aichegujiabeifen6.png"));
//设置名称
this->setWindowTitle("QQ");
this -> setStyleSheet("background-color:#ffffff;");
//设置标签1
l1=new QLabel(this);
//设置大小
l1->resize(430,130);
//设置颜色
l1->setStyleSheet("background-color:#00a1db;");
//设置头像
l2=new QLabel(this);
l2->resize(60,60);
l2->move(185,100);
l2->setStyleSheet("QLabel {background-image: url(:/icon_/icon/tx.png);border-radius:30px;}");
//登录账号标签
l3=new QLabel(this);
l3->resize(25,25);
l3->setScaledContents(true);
l3->setPixmap(QPixmap(":/icon_/icon/denglu.png"));
l3->move(100,175);
//登录账号下划线
l5=new QLabel(this);
l5->resize(230,2);
l5 -> setStyleSheet("border-radius:1px;background-color:#00a1db;");
l5->move(100,210);
//登录密码标签
l4=new QLabel(this);
l4->resize(25,25);
l4->setScaledContents(true);
l4->setPixmap(QPixmap(":/icon_/icon/denglumima.png"));
l4->move(100,218);
//登录密码下划线
l6=new QLabel(this);
l6->resize(230,2);
l6 -> setStyleSheet("border-radius:1px;background-color:#00a1db;");
l6->move(100,250);
//账号框
le1 = new QLineEdit(this);
le1 -> resize(200,25);
le1 -> setStyleSheet("border-radius:3px;border: none;");
le1 -> setPlaceholderText("QQ号码/手机号/邮箱");
le1 -> move(130,175);
//密码框
le2 = new QLineEdit(this);
le2 -> resize(200,25);
le2 ->setEchoMode(QLineEdit::Password);
le2 -> setStyleSheet("border-radius:3px;border: none;");
le2 -> setPlaceholderText("密码");
le2 -> move(130,218);
//复选框
cb1 = new QCheckBox("记住密码",this);
cb1 -> move(100,255);
cb2 = new QCheckBox("自动登录",this);
cb2 -> move(190,255);
//找回密码
l7=new QLabel("找回密码",this);
l7->resize(56,18);
l7->move(280,255);
//登录按钮
b1=new QPushButton("登录",this);
b1->resize(100,35);
b1->move(100,280);
b1 -> setStyleSheet("background-color:#00a1db;border-radius:5px;border: none;");
connect(this->b1,&QPushButton::clicked,this,&Widget::my_slots);
//取消按钮
b2=new QPushButton("取消",this);
b2->resize(100,35);
b2->move(230,280);
b2 -> setStyleSheet("background-color:#00a1db;border-radius:5px;border: none;");
connect(this->b2,SIGNAL(clicked()),this,SLOT(myslots()));
}
Widget::~Widget()
{
delete ui;
}
void Widget::my_slots()
{
QString name = this->le1->text();
QString pass = this->le2->text();
if("admin"!=name || "123456"!=pass){
QString mes;
if("admin"!=name){
mes = "账户名错误请重新输入";
}else{
mes = "密码输入错误请重新输入";
}
QMessageBox box(QMessageBox::Critical,
"提示",
mes,
QMessageBox::Ok|QMessageBox::Cancel,
this);
int ret=box.exec();
switch(ret){
case QMessageBox::Ok:
this->le1->setText("");
this->le2->setText("");
break;
case QMessageBox::Cancel:
this->close();
break;
}
}
if("admin"==name && "123456"==pass){
QMessageBox::StandardButton ret = QMessageBox::information(this,
"提示框","登录成功",
QMessageBox::Ok,QMessageBox::Ok);
if(ret == QMessageBox::Ok){
emit mysignal();
this->close();
}
}
}
void Widget::myslots(){
QMessageBox sure(QMessageBox::Question,"提示","是否继续登录",QMessageBox::Yes|QMessageBox::No,this);
int ret = sure.exec();
if(ret == QMessageBox::Yes){
this->close();
}
}
