{

Q_OBJECT

public:

explicit SimpleScreen(QWidget *parent = nullptr);

void initUI();

void setErrorMessage(const QString &message);

void setTipOfTheDay(const QString &tip);

private:

void initHeaderUI();

void initContentUI();

void initFooterUI();

private slots:

void authenticate();

void reboot();

void shutdown();

signals:

void authenticate(const std::string &username, const std::string &password);

void reboot(const int &time);

void shutdown(const int &time);

private:

QLineEdit *m_usernameEdit;

QLineEdit *m_passwordEdit;