QFormLayout表单布局

#include "FormLayoutExampleWindow.h"

FormLayoutExampleWindow::FormLayoutExampleWindow(QWidget* parent)
    : QWidget(parent)
{
    this->setWindowTitle("Form表单");

    //表单布局
    EditText* edtUserName = new EditText;
    edtUserName->setPlaceholderText("请输入用户名");
    edtUserName->setFixedSize(150, 30);
    EditText* edtPassword = new EditText;
    edtPassword->setPlaceholderText("请输入密码");
    edtPassword->setFixedSize(150, 30);
    edtPassword->setEchoMode(EditText::Password);
    Button* btnLogin = new Button;
    btnLogin->setFixedSize(100, 40);
    btnLogin->setText("登录");
    QFormLayout* formLayout = new QFormLayout(this);
    formLayout->addRow("用户名:", edtUserName);
    formLayout->addRow("密    码:", edtPassword);
    formLayout->addRow(btnLogin);
    formLayout->setSpacing(10);
    formLayout->setMargin(50);
    formLayout->setAlignment(btnLogin, Qt::AlignRight);

    this->setLayout(formLayout);
    formLayout->setFormAlignment(Qt::AlignCenter);
    formLayout->setAlignment(Qt::AlignCenter);

    connect(btnLogin, &Button::clicked, [=]() {
        QString userName = edtUserName->text();
        QString password = edtPassword->text();
        if (userName.isEmpty()) {
            QString dlgTitle = "温馨提示";
            QString strInfo = "用户名不能为空？";
            QMessageBox::StandardButton result = QMessageBox::information(this, dlgTitle, strInfo,
                QMessageBox::Ok);
            return;
        }
        else if (password.isEmpty()) {
            QString dlgTitle2 = "温馨提示";
            QString strInfo2 = "用户密码不能为空？";
            QMessageBox::StandardButton result2 = QMessageBox::information(this, dlgTitle2, strInfo2,
                QMessageBox::Ok);
            return;
        }
        QString dlgTitle3 = "温馨提示";
        QString strInfo3 = "登录成功";
        QMessageBox::StandardButton result2 = QMessageBox::information(this, dlgTitle3, strInfo3,
            QMessageBox::Ok);

        });

}

FormLayoutExampleWindow::~FormLayoutExampleWindow()
{
}