show_lightning_invoice: minor improvements

electrum/gui/qt/main_window.py

@@ -1449,8 +1449,14 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, Logger, QtEventListener):
         d = WindowModalDialog(self, _("Lightning Invoice"))
         vbox = QVBoxLayout(d)
         grid = QGridLayout()
-        grid.addWidget(QLabel(_("Node ID") + ':'), 0, 0)
-        grid.addWidget(QLabel(lnaddr.pubkey.serialize().hex()), 0, 1)
+        pubkey_e = ButtonsLineEdit(lnaddr.pubkey.serialize().hex())
+        pubkey_e.setFont(QFont(MONOSPACE_FONT))
+        pubkey_e.add_qr_show_button(config=self.config, title=_("Public Key"))
+        pubkey_e.addCopyButton()
+        pubkey_e.setReadOnly(True)
+        pubkey_e.setMinimumWidth(700)
+        grid.addWidget(QLabel(_("Public Key") + ':'), 0, 0)
+        grid.addWidget(pubkey_e, 0, 1)
         grid.addWidget(QLabel(_("Amount") + ':'), 1, 0)
         amount_str = self.format_amount(invoice.get_amount_sat()) + ' ' + self.base_unit()
         grid.addWidget(QLabel(amount_str), 1, 1)
@@ -1464,11 +1470,14 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, Logger, QtEventListener):
         grid.addWidget(QLabel(_('Features') + ':'), 5, 0)
         grid.addWidget(QLabel('\n'.join(lnaddr.get_features().get_names())), 5, 1)
         payhash_e = ButtonsLineEdit(lnaddr.paymenthash.hex())
+        payhash_e.setFont(QFont(MONOSPACE_FONT))
+        payhash_e.add_qr_show_button(config=self.config, title=_("Payment Hash"))
         payhash_e.addCopyButton()
         payhash_e.setReadOnly(True)
         grid.addWidget(QLabel(_("Payment Hash") + ':'), 6, 0)
         grid.addWidget(payhash_e, 6, 1)
         invoice_e = ShowQRTextEdit(config=self.config)
+        invoice_e.setFont(QFont(MONOSPACE_FONT))
         invoice_e.addCopyButton()
         invoice_e.setText(invoice.lightning_invoice)
         grid.addWidget(QLabel(_('Text') + ':'), 7, 0)