直接從 小對話框裏面讀數據就完事了。
剛寫的例子：
//////////////////////dialog.cpp
Dialog::Dialog(QWidget *parent) :
QDialog(parent),
ui(new Ui::Dialog)
{
ui->setupUi(this);
ui->lineEditPassword->setEchoMode(QLineEdit::Password);
}
Dialog::~Dialog()
{
delete ui;
}
void Dialog::on_pushButtonLogin_clicked()
{
//獲取數據
m_strUser = ui->lineEditUser->text();
m_strPassword = ui->lineEditPassword->text();
//校驗數據
if(m_strUser.isEmpty() || m_strPassword.isEmpty())
{
QMessageBox::information(this, QString(tr("Tips"))
,QString(tr("User name or Password is empty!")));
//等待下次按鈕
}
else
{
//正確的用戶名和密碼
this->accept();
}
}
void Dialog::on_pushButtonQuit_clicked()
{
this->reject();
}
////////////////////////////////mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "dialog.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
//
ui->setupUi(this);
//
Dialog* pDlgLogin = new Dialog(NULL);
//以模式對話框顯示
int nResult = pDlgLogin->exec();
if(nResult != QDialog::Accepted)
{
//登錄錯誤，退出
exit(1);
}
//正常登錄
//讀取用戶名和密碼
m_strUser = pDlgLogin->m_strUser;
m_Password = pDlgLogin->m_strPassword;
//設置標簽為用戶名
ui->labelUserName->setText(m_strUser);
//綁定退出信號到關閉槽函數
connect(ui->action_Quit, SIGNAL(triggered()), this, SLOT(close()));
//將主窗口移到指定位置
this->move(QPoint(0,0));
//
}
MainWindow::~MainWindow()
{
delete ui;
}