exam_timer_teacher/tlogin.cpp

#include "tlogin.h"

#include "appevent.h"
#include "qlabel.h"
#include "qlineedit.h"

#include <QGroupBox>
#include <QMessageBox>
#include <QMouseEvent>
#include <QRegExpValidator>

#include "qpushbutton.h"
#include "qstyle.h"
#include "qwidget.h"
#include "utils/layoutbuilder.h"

#include "api/tloginapi.h"

TLogin::TLogin(QWidget *parent)
    : QDialog(parent)
{
    setObjectName("Login");
    setWindowFlags(Qt::Window | Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint);
    setWindowTitle(tr("Login"));

    using namespace Layouting;

    info = new QLabel;
    info->setStyleSheet("color: white;");
    info->setText(tr("link failure"));
    // 创建登录组件
    usernameEdit = new QLineEdit();
    usernameEdit->setPlaceholderText(tr("Enter your user name"));
    passwordEdit = new QLineEdit();
    // passwordEdit->setEchoMode(QLineEdit::Password);
    passwordEdit->setPlaceholderText(tr("Enter your ExamNo"));
    // QRegExp regExp("[a-zA-Z0-9]{6,12}");
    // QValidator *validator = new QRegExpValidator(regExp, passwordEdit);
    // passwordEdit->setValidator(validator);

    QWidget *w = Group{Column{Row{st, tr("Login"), st},
                              Form{tr("Username:"), usernameEdit, br, tr("ExamNo:"), passwordEdit},
                              PushButton{bindTo(&loginPushButton),
                                         text(tr("Login")),
                                         onClicked(std::bind(&TLogin::on_login_clicked, this))}}}
                     .emerge();

    QPushButton *close;
    auto h = Row{"", st, PushButton{bindTo(&close), "test"}};

    Column{h, st, Row{st, w, st}, st, info, noMargin}.attachTo(this);

    QString styleSheet = R"(
    QDialog#Login {
        background-image: url(:/bg/bg1.png);
    }
    QGroupBox {
        background-color: rgba(255, 255, 255, 128);
    }
)";
    setStyleSheet(styleSheet);

    QPixmap closePix = style()->standardPixmap(QStyle::SP_TitleBarCloseButton);

    close->setIcon(closePix);
    close->setStyleSheet(R"__(
    QPushButton {
        border: none;
        background-color: #ffffff; /* 红色背景 */
        color: white; /* 文字颜色 */
        padding: 10px 10px; /* 内边距 */
        text-align: center; /* 文字居中 */
        text-decoration: none; /* 去掉下划线 */
        font-size: 12px; /* 字体大小 */
        margin: 2px 2px; /* 外边距 */
        border-radius: 10px; /* 圆角 */
    }
    QPushButton:hover {
        background-color: #d32f2f; /* 鼠标悬停时背景色 */
    }
    )__");

    resize({400, 400});
    // usernameEdit->setText("test");
    // passwordEdit->setText("SW1111112");
    loginPushButton->setDisabled(true);
    QObject::connect(close, &QPushButton::clicked, this, &TLogin::close);
    // QObject::connect(AppEvent::instance(), &AppEvent::serverLinkSignals, this, [this](bool isok) {
    //     if (isok) {
    //         info->setText(tr("link succeeded"));
    //         loginPushButton->setDisabled(false);
    //     } else {
    //         info->setText(tr("link failure"));
    //         loginPushButton->setDisabled(true);
    //     }
    // });
}

void TLogin::mousePressEvent(QMouseEvent *event)
{
    if (event->button() == Qt::LeftButton) {
        m_dragPosition = event->globalPos() - frameGeometry().topLeft();
        event->accept();
    }
}

void TLogin::mouseMoveEvent(QMouseEvent *event)
{
    if (event->buttons() & Qt::LeftButton) {
        move(event->globalPos() - m_dragPosition);
        event->accept();
    }
}
void TLogin::on_login_clicked()
{
    const QString userName = usernameEdit->text();
    const QString password = passwordEdit->text();

    if (userName.isEmpty() || password.isEmpty()) {
        QMessageBox::warning(this,
                             tr("Login failed"),
                             tr("User name or password error, please try again."));
        return;
    }
    bool ok = TC::Login(userName, password).post();
    if (ok && AppEvent::instance()->isLogin()) {
        // 登录成功，发出信号
        emit loginSuccessful();
        close();
    } else {
        // 登录失败，显示提示框
        QMessageBox::warning(this,
                             tr("Login failed"),
                             tr("User name or password error, please try again."));
        return;
    }
}