def __init__(self, win):
        QWidget.__init__(self)
        self.win = win
        self.setWindowTitle('Electrum-BOLI - '+_('Payment Request'))
        self.setMinimumSize(800, 250)
        self.address = ''
        self.label = ''
        self.amount = 0
        self.setFocusPolicy(QtCore.Qt.NoFocus)

        main_box = QHBoxLayout()

        self.qrw = QRCodeWidget()
        main_box.addWidget(self.qrw, 1)

        vbox = QVBoxLayout()
        main_box.addLayout(vbox)

        self.address_label = QLabel("")
        #self.address_label.setFont(QFont(MONOSPACE_FONT))
        vbox.addWidget(self.address_label)

        self.label_label = QLabel("")
        vbox.addWidget(self.label_label)

        self.amount_label = QLabel("")
        vbox.addWidget(self.amount_label)

        vbox.addStretch(1)
        self.setLayout(main_box)
    def setup_google_auth(self, window, _id, otp_secret):
        vbox = QVBoxLayout()
        window.set_layout(vbox)
        if otp_secret is not None:
            uri = "otpauth://totp/%s?secret=%s" % ('trustedcoin.com',
                                                   otp_secret)
            vbox.addWidget(
                QLabel("Please scan this QR code in Google Authenticator."))
            qrw = QRCodeWidget(uri)
            vbox.addWidget(qrw, 1)
            msg = _('Then, enter your Google Authenticator code:')
        else:
            label = QLabel(
                "This wallet is already registered, but it was never authenticated. To finalize your registration, please enter your Google Authenticator Code. If you do not have this code, delete the wallet file and start a new registration"
            )
            label.setWordWrap(1)
            vbox.addWidget(label)
            msg = _('Google Authenticator code:')

        hbox = QHBoxLayout()
        hbox.addWidget(QLabel(msg))
        pw = AmountEdit(None, is_int=True)
        pw.setFocus(True)
        hbox.addWidget(pw)
        hbox.addStretch(1)
        vbox.addLayout(hbox)

        b = OkButton(window, _('Next'))
        b.setEnabled(False)
        vbox.addLayout(Buttons(CancelButton(window), b))
        pw.textChanged.connect(lambda: b.setEnabled(len(pw.text()) == 6))

        while True:
            if not window.exec_():
                return False
            otp = pw.get_amount()
            try:
                server.auth(_id, otp)
                return True
            except:
                QMessageBox.information(self.window, _('Message'),
                                        _('Incorrect password'), _('OK'))
                pw.setText('')