418 lines
18 KiB
Python
418 lines
18 KiB
Python
# Copyright (C) 2022 The Electrum developers
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# Distributed under the MIT software license, see the accompanying
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# file LICENCE or http://www.opensource.org/licenses/mit-license.php
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from typing import Optional, TYPE_CHECKING
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from PyQt6.QtGui import QFont, QCursor, QMouseEvent
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from PyQt6.QtCore import Qt, QSize
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from PyQt6.QtWidgets import (QLabel, QVBoxLayout, QGridLayout, QTextEdit,
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QHBoxLayout, QPushButton, QWidget, QSizePolicy, QFrame)
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from electrum.i18n import _
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from electrum.util import InvoiceError, ChoiceItem
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from electrum.invoices import pr_expiration_values
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from electrum.logging import Logger
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from .amountedit import AmountEdit, BTCAmountEdit, SizedFreezableLineEdit
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from .qrcodewidget import QRCodeWidget
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from .util import read_QIcon, WWLabel, MessageBoxMixin, MONOSPACE_FONT, get_icon_qrcode
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if TYPE_CHECKING:
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from .main_window import ElectrumWindow
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class ReceiveTab(QWidget, MessageBoxMixin, Logger):
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# strings updated by update_current_request
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addr = ''
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lnaddr = ''
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URI = ''
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address_help = ''
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URI_help = ''
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ln_help = ''
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def __init__(self, window: 'ElectrumWindow'):
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QWidget.__init__(self, window)
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Logger.__init__(self)
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self.window = window
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self.wallet = window.wallet
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self.fx = window.fx
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self.config = window.config
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# A 4-column grid layout. All the stretch is in the last column.
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# The exchange rate plugin adds a fiat widget in column 2
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self.receive_grid = grid = QGridLayout()
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grid.setSpacing(8)
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grid.setColumnStretch(3, 1)
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self.receive_message_e = SizedFreezableLineEdit(width=400)
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grid.addWidget(QLabel(_('Description')), 0, 0)
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grid.addWidget(self.receive_message_e, 0, 1, 1, 4)
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self.receive_amount_e = BTCAmountEdit(self.window.get_decimal_point)
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grid.addWidget(QLabel(_('Requested amount')), 1, 0)
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grid.addWidget(self.receive_amount_e, 1, 1)
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self.fiat_receive_e = AmountEdit(self.fx.get_currency if self.fx else '')
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if not self.fx or not self.fx.is_enabled():
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self.fiat_receive_e.setVisible(False)
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grid.addWidget(self.fiat_receive_e, 1, 2, Qt.AlignmentFlag.AlignLeft)
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self.window.connect_fields(self.receive_amount_e, self.fiat_receive_e)
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self.expiry_button = QPushButton('')
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self.expiry_button.clicked.connect(self.expiry_dialog)
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grid.addWidget(QLabel(_('Expiry')), 2, 0)
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grid.addWidget(self.expiry_button, 2, 1)
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self.clear_invoice_button = QPushButton(_('Clear'))
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self.clear_invoice_button.clicked.connect(self.do_clear)
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text = _('Onchain') if self.wallet.has_lightning() else _('Request')
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self.create_onchain_invoice_button = QPushButton(text)
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self.create_onchain_invoice_button.setIcon(read_QIcon("bitcoin.png"))
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self.create_onchain_invoice_button.clicked.connect(lambda: self.create_invoice(False))
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self.create_lightning_invoice_button = QPushButton(_('Lightning'))
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self.create_lightning_invoice_button.setIcon(read_QIcon("lightning.png"))
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self.create_lightning_invoice_button.clicked.connect(lambda: self.create_invoice(True))
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self.create_lightning_invoice_button.setVisible(self.wallet.has_lightning())
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self.receive_buttons = buttons = QHBoxLayout()
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buttons.addWidget(self.clear_invoice_button)
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buttons.addStretch(1)
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buttons.addWidget(self.create_onchain_invoice_button)
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buttons.addWidget(self.create_lightning_invoice_button)
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grid.addLayout(buttons, 4, 1, 1, -1)
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self.receive_e = QTextEdit()
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self.receive_e.setFont(QFont(MONOSPACE_FONT))
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self.receive_e.setReadOnly(True)
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self.receive_e.setContextMenuPolicy(Qt.ContextMenuPolicy.NoContextMenu)
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self.receive_e.setTextInteractionFlags(Qt.TextInteractionFlag.NoTextInteraction)
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self.receive_e.textChanged.connect(self.update_receive_widgets)
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self.receive_qr = QRCodeWidget(manual_size=True)
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self.receive_help_text = WWLabel('')
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self.receive_help_text.setLayout(QHBoxLayout())
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self.receive_rebalance_button = QPushButton('Rebalance')
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self.receive_rebalance_button.suggestion = None
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self.receive_zeroconf_button = QPushButton(_('Accept'))
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self.receive_zeroconf_button.clicked.connect(self.on_accept_zeroconf)
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def on_receive_rebalance():
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if self.receive_rebalance_button.suggestion:
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chan1, chan2, delta = self.receive_rebalance_button.suggestion
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self.window.rebalance_dialog(chan1, chan2, amount_sat=delta)
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self.receive_rebalance_button.clicked.connect(on_receive_rebalance)
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self.receive_swap_button = QPushButton('Swap')
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self.receive_swap_button.suggestion = None
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def on_receive_swap():
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if self.receive_swap_button.suggestion:
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chan, swap_recv_amount_sat = self.receive_swap_button.suggestion
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self.window.run_swap_dialog(is_reverse=True, recv_amount_sat_or_max=swap_recv_amount_sat, channels=[chan])
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self.receive_swap_button.clicked.connect(on_receive_swap)
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buttons = QHBoxLayout()
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buttons.addWidget(self.receive_rebalance_button)
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buttons.addWidget(self.receive_swap_button)
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buttons.addWidget(self.receive_zeroconf_button)
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vbox = QVBoxLayout()
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vbox.addWidget(self.receive_help_text)
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vbox.addLayout(buttons)
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self.receive_help_widget = FramedWidget()
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self.receive_help_widget.setVisible(False)
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self.receive_help_widget.setLayout(vbox)
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self.receive_widget = ReceiveWidget(
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self, self.receive_e, self.receive_qr, self.receive_help_widget)
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#self.receive_widget.mouseReleaseEvent = lambda x: self.toggle_receive_qr()
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receive_widget_sp = QSizePolicy(QSizePolicy.Policy.MinimumExpanding, QSizePolicy.Policy.MinimumExpanding)
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receive_widget_sp.setRetainSizeWhenHidden(True)
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self.receive_widget.setSizePolicy(receive_widget_sp)
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self.receive_widget.setVisible(False)
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self.receive_requests_label = QLabel(_('Requests'))
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# with QDarkStyle, this label may partially cover the qrcode widget.
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# setMaximumWidth prevents that
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self.receive_requests_label.setMaximumWidth(400)
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from .request_list import RequestList
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self.request_list = RequestList(self)
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# toolbar
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self.toolbar, menu = self.request_list.create_toolbar_with_menu('')
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self.toggle_qr_button = QPushButton('')
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self.toggle_qr_button.setIcon(get_icon_qrcode())
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self.toggle_qr_button.setToolTip(_('Switch between text and QR code view'))
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self.toggle_qr_button.clicked.connect(self.toggle_receive_qr)
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self.toggle_qr_button.setEnabled(False)
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self.toolbar.insertWidget(2, self.toggle_qr_button)
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# menu
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self.qr_menu_action = menu.addToggle(_("Show detached QR code window"), self.window.toggle_qr_window)
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menu.addAction(_("Import requests"), self.window.import_requests)
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menu.addAction(_("Export requests"), self.window.export_requests)
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menu.addAction(_("Delete expired requests"), self.request_list.delete_expired_requests)
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self.toolbar_menu = menu
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# layout
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vbox_g = QVBoxLayout()
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vbox_g.addLayout(grid)
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vbox_g.addStretch()
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hbox = QHBoxLayout()
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hbox.addLayout(vbox_g)
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hbox.addStretch()
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hbox.addWidget(self.receive_widget, 1)
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self.searchable_list = self.request_list
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vbox = QVBoxLayout(self)
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vbox.addLayout(self.toolbar)
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vbox.addLayout(hbox)
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vbox.addStretch()
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vbox.addWidget(self.receive_requests_label)
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vbox.addWidget(self.request_list)
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vbox.setStretchFactor(hbox, 40)
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vbox.setStretchFactor(self.request_list, 60)
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self.request_list.update() # after parented and put into a layout, can update without flickering
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self.update_expiry_text()
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def update_expiry_text(self):
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expiry = self.config.WALLET_PAYREQ_EXPIRY_SECONDS
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text = pr_expiration_values()[expiry]
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self.expiry_button.setText(text)
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def expiry_dialog(self):
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msg = ''.join([
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_('Expiration period of your request.'), ' ',
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_('This information is seen by the recipient if you send them a signed payment request.'),
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'\n\n',
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_('For on-chain requests, the address gets reserved until expiration. After that, it might get reused.'), ' ',
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_('The bitcoin address never expires and will always be part of this electrum wallet.'), ' ',
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_('You can reuse a bitcoin address any number of times but it is not good for your privacy.'),
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'\n\n',
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_('For Lightning requests, payments will not be accepted after the expiration.'),
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])
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expiry = self.config.WALLET_PAYREQ_EXPIRY_SECONDS
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choices = [ChoiceItem(key=exptime, label=label)
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for (exptime, label) in pr_expiration_values().items()]
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v = self.window.query_choice(msg, choices, title=_('Expiry'), default_key=expiry)
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if v is None:
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return
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self.config.WALLET_PAYREQ_EXPIRY_SECONDS = v
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self.update_expiry_text()
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def on_tab_changed(self):
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text, data, help_text, title = self.get_tab_data()
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self.window.do_copy(text, title=title)
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self.update_receive_qr_window()
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def do_copy(self, e: 'QMouseEvent'):
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if e.button() != Qt.MouseButton.LeftButton:
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return
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text, data, help_text, title = self.get_tab_data()
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self.window.do_copy(text, title=title)
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def toggle_receive_qr(self):
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b = not self.config.GUI_QT_RECEIVE_TAB_QR_VISIBLE
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self.config.GUI_QT_RECEIVE_TAB_QR_VISIBLE = b
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self.update_receive_widgets()
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def update_receive_widgets(self):
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b = self.config.GUI_QT_RECEIVE_TAB_QR_VISIBLE
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self.receive_widget.update_visibility(b)
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def update_current_request(self):
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if len(self.request_list.selectionModel().selectedRows(0)) > 1:
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key = None
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else:
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key = self.request_list.get_current_key()
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req = self.wallet.get_request(key) if key else None
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if req is None:
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self.receive_e.setText('')
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self.addr = self.URI = self.lnaddr = ''
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self.address_help = self.URI_help = self.ln_help = ''
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return
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help_texts = self.wallet.get_help_texts_for_receive_request(req)
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self.addr = (req.get_address() or '') if not help_texts.address_is_error else ''
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self.URI = (self.wallet.get_request_URI(req) or '') if not help_texts.URI_is_error else ''
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self.lnaddr = self.wallet.get_bolt11_invoice(req) if not help_texts.ln_is_error else ''
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self.address_help = help_texts.address_help
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self.URI_help = help_texts.URI_help
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self.ln_help = help_texts.ln_help
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can_rebalance = help_texts.can_rebalance()
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can_swap = help_texts.can_swap()
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can_zeroconf = help_texts.can_zeroconf()
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self.receive_rebalance_button.suggestion = help_texts.ln_rebalance_suggestion
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self.receive_swap_button.suggestion = help_texts.ln_swap_suggestion
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self.receive_rebalance_button.setVisible(can_rebalance)
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self.receive_swap_button.setVisible(can_swap)
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self.receive_rebalance_button.setEnabled(can_rebalance and self.window.num_tasks() == 0)
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self.receive_swap_button.setEnabled(can_swap and self.window.num_tasks() == 0)
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self.receive_zeroconf_button.setVisible(can_zeroconf)
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self.receive_zeroconf_button.setEnabled(can_zeroconf)
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text, data, help_text, title = self.get_tab_data()
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self.receive_e.setText(text)
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self.receive_qr.setData(data)
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self.receive_help_text.setText(help_text)
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for w in [self.receive_e, self.receive_qr]:
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w.setEnabled(bool(text) and (not help_text or can_zeroconf))
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w.setToolTip(help_text)
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# macOS hack (similar to #4777)
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self.receive_e.repaint()
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# always show
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if can_zeroconf:
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# show the help message if zeroconf so user can first accept it and still sees the invoice
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# after accepting
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self.receive_widget.show_help()
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self.receive_widget.setVisible(True)
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self.toggle_qr_button.setEnabled(True)
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self.update_receive_qr_window()
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def on_accept_zeroconf(self):
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self.receive_zeroconf_button.setVisible(False)
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self.update_receive_widgets()
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def get_tab_data(self):
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if self.URI:
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out = self.URI, self.URI, self.URI_help, _('Bitcoin URI')
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elif self.addr:
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out = self.addr, self.addr, self.address_help, _('Address')
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else:
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# encode lightning invoices as uppercase so QR encoding can use
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# alphanumeric mode; resulting in smaller QR codes
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out = self.lnaddr, self.lnaddr.upper(), self.ln_help, _('Lightning Request')
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return out
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def update_receive_qr_window(self):
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if self.window.qr_window and self.window.qr_window.isVisible():
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text, data, help_text, title = self.get_tab_data()
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self.window.qr_window.qrw.setData(data)
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def create_invoice(self, is_lightning: bool):
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amount_sat = self.receive_amount_e.get_amount()
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message = self.receive_message_e.text()
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expiry = self.config.WALLET_PAYREQ_EXPIRY_SECONDS
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if is_lightning:
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address = None
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else:
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if amount_sat and amount_sat < self.wallet.dust_threshold():
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self.show_error(_('Amount too small to be received onchain'))
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return
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address = self.get_bitcoin_address_for_request(amount_sat)
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if not address:
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return
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self.window.address_list.update()
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# generate even if we cannot receive
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try:
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key = self.wallet.create_request(amount_sat, message, expiry, address)
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except InvoiceError as e:
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self.show_error(_('Error creating payment request') + ':\n' + str(e))
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return
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except Exception as e:
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self.logger.exception('Error adding payment request')
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self.show_error(_('Error adding payment request') + ':\n' + repr(e))
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return
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assert key is not None
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self.window.address_list.refresh_all()
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self.request_list.update()
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self.request_list.set_current_key(key)
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# clear request fields
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self.receive_amount_e.setText('')
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self.receive_message_e.setText('')
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# copy current tab to clipboard
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self.on_tab_changed()
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def get_bitcoin_address_for_request(self, amount) -> Optional[str]:
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addr = self.wallet.get_unused_address()
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if addr is None:
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if not self.wallet.is_deterministic(): # imported wallet
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msg = [
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_('No more addresses in your wallet.'), ' ',
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_('You are using a non-deterministic wallet, which cannot create new addresses.'), ' ',
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_('If you want to create new addresses, use a deterministic wallet instead.'), '\n\n',
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_('Creating a new payment request will reuse one of your addresses and overwrite an existing request. Continue anyway?'),
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]
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if not self.question(''.join(msg)):
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return
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addr = self.wallet.get_receiving_address()
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else: # deterministic wallet
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if not self.question(_("Warning: The next address will not be recovered automatically if you restore your wallet from seed; you may need to add it manually.\n\nThis occurs because you have too many unused addresses in your wallet. To avoid this situation, use the existing addresses first.\n\nCreate anyway?")):
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return
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addr = self.wallet.create_new_address(False)
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return addr
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def do_clear(self):
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self.receive_e.setText('')
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self.addr = self.URI = self.lnaddr = ''
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self.address_help = self.URI_help = self.ln_help = ''
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self.receive_widget.setVisible(False)
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self.toggle_qr_button.setEnabled(False)
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self.receive_message_e.setText('')
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self.receive_amount_e.setAmount(None)
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self.request_list.clearSelection()
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class ReceiveWidget(QWidget):
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min_size = QSize(200, 200)
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def __init__(self, receive_tab: 'ReceiveTab', textedit: QWidget, qr: QWidget, help_widget: QWidget):
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QWidget.__init__(self)
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self.textedit = textedit
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self.qr = qr
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self.help_widget = help_widget
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self.setMinimumSize(self.min_size)
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for w in [textedit, qr]:
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w.mousePressEvent = receive_tab.do_copy
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w.setCursor(QCursor(Qt.CursorShape.PointingHandCursor))
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textedit.setFocusPolicy(Qt.FocusPolicy.NoFocus)
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if isinstance(help_widget, QLabel):
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help_widget.setFrameStyle(QFrame.Shape.StyledPanel)
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help_widget.setStyleSheet("QLabel {border:1px solid gray; border-radius:2px; }")
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hbox = QHBoxLayout()
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hbox.addStretch()
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hbox.addWidget(textedit)
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hbox.addWidget(help_widget)
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hbox.addWidget(qr)
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vbox = QVBoxLayout()
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vbox.addLayout(hbox)
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vbox.addStretch()
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self.setLayout(vbox)
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def update_visibility(self, is_qr):
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if str(self.textedit.toPlainText()):
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self.help_widget.setVisible(False)
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self.textedit.setVisible(not is_qr)
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self.qr.setVisible(is_qr)
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else:
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self.show_help()
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def show_help(self):
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self.help_widget.setVisible(True)
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self.textedit.setVisible(False)
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self.qr.setVisible(False)
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def resizeEvent(self, e):
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# keep square aspect ratio when resized
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size = e.size()
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margin = 10
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x = min(size.height(), size.width()) - margin
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for w in [self.textedit, self.qr, self.help_widget]:
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w.setFixedWidth(x)
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w.setFixedHeight(x)
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return super().resizeEvent(e)
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class FramedWidget(QFrame):
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def __init__(self):
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QFrame.__init__(self)
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self.setFrameStyle(QFrame.Shape.StyledPanel)
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self.setStyleSheet("FramedWidget {border:1px solid gray; border-radius:2px; }")
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