void Homepage::login_utente(){
    hideAll();
    setFixedSize(600,400);
    setAutoFillBackground(true);
    QPalette pal = this->palette();
    pal.setColor(QPalette::Window, Qt::white);
    this->setPalette(pal);
    setWindowTitle("Login Utente");
    QHBoxLayout* loglayout=new QHBoxLayout;

    username=new QLabel("Username");
    password=new QLabel("Password");
    usline=new QLineEdit();
    pwdline=new QLineEdit();
    pwdline->setEchoMode(QLineEdit::Password);
    accedi=new QPushButton("Accedi");
    //back=new QPushButton("Back");
    connect(accedi, SIGNAL(clicked()), this, SLOT(verifica()));
    //connect(back,SIGNAL(clicked()),SLOT(backtohome()));
    //loglayout->addWidget(back);
    loglayout->addWidget(username);
    loglayout->addWidget(usline);
    loglayout->addWidget(password);
    loglayout->addWidget(pwdline);
    loglayout->addWidget(accedi);
    QLayout* oldlayout=layout();
    delete oldlayout;
    setLayout(loglayout);
}