一个简单的QQ登陆界面

来源：互联网发布：上海美工刀片批发2011 编辑：程序博客网时间：2024/05/16 08:13

dialog.h

#ifndef DIALOG_H

#define DIALOG_H

#include <QDialog>

#include <QPushButton>

#include <QLineEdit>

#include <QLabel>

#include <QMessageBox>

#include <QGridLayout>

namespace Ui {

class Dialog;

class Dialog : public QDialog

    Q_OBJECT

public:

    //登录button以及取消button

    QPushButton* loginButton;

    QPushButton* cancelButton;

//账号和密码label

    QLabel* name;

    QLabel* password;

//输入框

    QLineEdit* nameLineEdit;

    QLineEdit* passwordLineEdit;

//布局

    QGridLayout* layout;

    explicit Dialog(QWidget *parent = 0);

    ~Dialog();

private slots:

    void login();

    void cancel();

private:

    Ui::Dialog *ui;

};

#endif // DIALOG_H

dialog.m

#include "dialog.h"

#include "ui_dialog.h"

Dialog::Dialog(QWidget *parent) :

    QDialog(parent),

    ui(new Ui::Dialog)

    ui->setupUi(this);

//设置主窗口的标题

    setWindowTitle(tr("QQ 登陆"));

    //设置label标签

    name = new QLabel;

    name->setText(tr("账号："));

    password = new QLabel;

    password->setText(tr("密码："));

    //添加输入lineEdit控件

    nameLineEdit = new QLineEdit;

    passwordLineEdit = new QLineEdit;

    //设置密码输入框接受的内容为黑色的圆点

    passwordLineEdit->setEchoMode(QLineEdit::Password);

    //设置登陆和取消的按钮

    loginButton = new QPushButton;

    loginButton->setText(tr("登陆"));

    cancelButton = new QPushButton;

    cancelButton->setText(tr("取消"));

    //窗口布局,添加用到的控件

    layout = new QGridLayout(this);

    layout->addWidget(name,0,0);

    layout->addWidget(nameLineEdit,0,1);

    layout->addWidget(password,1,0);

    layout->addWidget(passwordLineEdit,1,1);

    layout->addWidget(loginButton,2,0);

    layout->addWidget(cancelButton,3,0);

    //链接信号与槽

    connect(loginButton,SIGNAL(clicked()),this,SLOT(login()));

    connect(cancelButton,SIGNAL(clicked()),this,SLOT(cancel()));

//登陆按钮接收到信号之后做的处理

void Dialog::login()

    //用户名前如果有空格按照正确的处理

  //  if(nameLineEdit->text().trimmed() == tr("123456") && passwordLineEdit->text() == tr("456789"))

    //如果输入的账号和密码已经存在且都相同，就接受

    if(nameLineEdit->text() == tr("123456") && passwordLineEdit->text() == tr("456789"))

        accept();

    else//显示一个警告框

        QMessageBox::warning(this,tr("Waring"),tr("user and password waring"),QMessageBox::Yes);

        //登陆不正确时，清空账户输入框和密码框，然后光标自动跳转到账户名输入框

        nameLineEdit->clear();

        passwordLineEdit->clear();

        nameLineEdit->setFocus();

//取消操作处理

void Dialog::cancel()

    exit(1);

Dialog::~Dialog()

    delete ui;

0 0