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713 lines
29 KiB
713 lines
29 KiB
#!/usr/bin/env python |
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# |
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# Electrum - lightweight Bitcoin client |
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# Copyright (2019) The Electrum Developers |
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# |
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# Permission is hereby granted, free of charge, to any person |
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# obtaining a copy of this software and associated documentation files |
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# (the "Software"), to deal in the Software without restriction, |
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# including without limitation the rights to use, copy, modify, merge, |
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# publish, distribute, sublicense, and/or sell copies of the Software, |
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# and to permit persons to whom the Software is furnished to do so, |
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# subject to the following conditions: |
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# |
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# The above copyright notice and this permission notice shall be |
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# included in all copies or substantial portions of the Software. |
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# |
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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# SOFTWARE. |
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from decimal import Decimal |
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from functools import partial |
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from typing import TYPE_CHECKING, Optional, Union, Callable |
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from PyQt5.QtCore import Qt |
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from PyQt5.QtGui import QIcon |
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from PyQt5.QtWidgets import QWidget, QHBoxLayout, QVBoxLayout, QLabel, QGridLayout, QPushButton, QLineEdit, QToolButton, QMenu |
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from electrum.i18n import _ |
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from electrum.util import NotEnoughFunds, NoDynamicFeeEstimates |
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from electrum.util import quantize_feerate |
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from electrum.plugin import run_hook |
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from electrum.transaction import Transaction, PartialTransaction |
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from electrum.wallet import InternalAddressCorruption |
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from electrum.simple_config import SimpleConfig |
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from electrum.bitcoin import DummyAddress |
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from .util import (WindowModalDialog, ColorScheme, HelpLabel, Buttons, CancelButton, |
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BlockingWaitingDialog, PasswordLineEdit, WWLabel, read_QIcon) |
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from .fee_slider import FeeSlider, FeeComboBox |
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if TYPE_CHECKING: |
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from electrum.simple_config import ConfigVarWithConfig |
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from .main_window import ElectrumWindow |
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from .transaction_dialog import TxSizeLabel, TxFiatLabel, TxInOutWidget |
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from .fee_slider import FeeSlider, FeeComboBox |
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from .amountedit import FeerateEdit, BTCAmountEdit |
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from .locktimeedit import LockTimeEdit |
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class TxEditor(WindowModalDialog): |
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def __init__(self, *, title='', |
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window: 'ElectrumWindow', |
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make_tx, |
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output_value: Union[int, str] = None, |
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allow_preview=True): |
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WindowModalDialog.__init__(self, window, title=title) |
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self.main_window = window |
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self.make_tx = make_tx |
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self.output_value = output_value |
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self.tx = None # type: Optional[PartialTransaction] |
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self.messages = [] |
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self.error = '' # set by side effect |
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self.config = window.config |
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self.wallet = window.wallet |
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self.feerounding_sats = 0 |
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self.not_enough_funds = False |
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self.no_dynfee_estimates = False |
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self.needs_update = False |
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# preview is disabled for lightning channel funding |
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self.allow_preview = allow_preview |
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self.is_preview = False |
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self.locktime_e = LockTimeEdit(self) |
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self.locktime_e.valueEdited.connect(self.trigger_update) |
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self.locktime_label = QLabel(_("LockTime") + ": ") |
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self.io_widget = TxInOutWidget(self.main_window, self.wallet) |
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self.create_fee_controls() |
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vbox = QVBoxLayout() |
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self.setLayout(vbox) |
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top = self.create_top_bar(self.help_text) |
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grid = self.create_grid() |
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vbox.addLayout(top) |
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vbox.addLayout(grid) |
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vbox.addWidget(self.io_widget) |
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self.message_label = WWLabel('') |
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self.message_label.setMinimumHeight(70) |
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vbox.addWidget(self.message_label) |
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buttons = self.create_buttons_bar() |
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vbox.addStretch(1) |
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vbox.addLayout(buttons) |
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self.set_io_visible(self.config.GUI_QT_TX_EDITOR_SHOW_IO) |
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self.set_fee_edit_visible(self.config.GUI_QT_TX_EDITOR_SHOW_FEE_DETAILS) |
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self.set_locktime_visible(self.config.GUI_QT_TX_EDITOR_SHOW_LOCKTIME) |
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self.update_fee_target() |
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self.resize(self.layout().sizeHint()) |
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self.main_window.gui_object.timer.timeout.connect(self.timer_actions) |
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def timer_actions(self): |
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if self.needs_update: |
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self.update() |
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self.needs_update = False |
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def update(self): |
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self.update_tx() |
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self.set_locktime() |
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self._update_widgets() |
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def stop_editor_updates(self): |
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self.main_window.gui_object.timer.timeout.disconnect(self.timer_actions) |
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def set_fee_config(self, dyn, pos, fee_rate): |
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if dyn: |
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if self.config.use_mempool_fees(): |
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self.config.cv.FEE_EST_DYNAMIC_MEMPOOL_SLIDERPOS.set(pos, save=False) |
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else: |
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self.config.cv.FEE_EST_DYNAMIC_ETA_SLIDERPOS.set(pos, save=False) |
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else: |
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self.config.cv.FEE_EST_STATIC_FEERATE_FALLBACK.set(fee_rate, save=False) |
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def update_tx(self, *, fallback_to_zero_fee: bool = False): |
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# expected to set self.tx, self.message and self.error |
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raise NotImplementedError() |
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def update_fee_target(self): |
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text = self.fee_slider.get_dynfee_target() |
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self.fee_target.setText(text) |
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self.fee_target.setVisible(bool(text)) # hide in static mode |
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def update_feerate_label(self): |
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self.feerate_label.setText(self.feerate_e.text() + ' ' + self.feerate_e.base_unit()) |
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def create_fee_controls(self): |
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self.fee_label = QLabel('') |
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self.fee_label.setTextInteractionFlags(Qt.TextSelectableByMouse) |
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self.size_label = TxSizeLabel() |
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self.size_label.setAlignment(Qt.AlignCenter) |
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self.size_label.setAmount(0) |
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self.size_label.setStyleSheet(ColorScheme.DEFAULT.as_stylesheet()) |
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self.feerate_label = QLabel('') |
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self.feerate_label.setTextInteractionFlags(Qt.TextSelectableByMouse) |
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self.fiat_fee_label = TxFiatLabel() |
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self.fiat_fee_label.setAlignment(Qt.AlignCenter) |
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self.fiat_fee_label.setAmount(0) |
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self.fiat_fee_label.setStyleSheet(ColorScheme.DEFAULT.as_stylesheet()) |
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self.feerate_e = FeerateEdit(lambda: 0) |
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self.feerate_e.setAmount(self.config.fee_per_byte()) |
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self.feerate_e.textEdited.connect(partial(self.on_fee_or_feerate, self.feerate_e, False)) |
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self.feerate_e.editingFinished.connect(partial(self.on_fee_or_feerate, self.feerate_e, True)) |
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self.update_feerate_label() |
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self.fee_e = BTCAmountEdit(self.main_window.get_decimal_point) |
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self.fee_e.textEdited.connect(partial(self.on_fee_or_feerate, self.fee_e, False)) |
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self.fee_e.editingFinished.connect(partial(self.on_fee_or_feerate, self.fee_e, True)) |
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self.feerate_e.setFixedWidth(150) |
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self.fee_e.setFixedWidth(150) |
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self.fee_e.textChanged.connect(self.entry_changed) |
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self.feerate_e.textChanged.connect(self.entry_changed) |
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self.fee_target = QLabel('') |
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self.fee_slider = FeeSlider(self, self.config, self.fee_slider_callback) |
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self.fee_combo = FeeComboBox(self.fee_slider) |
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self.fee_combo.setFocusPolicy(Qt.NoFocus) |
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def feerounding_onclick(): |
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text = (self.feerounding_text() + '\n\n' + |
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_('To somewhat protect your privacy, Electrum tries to create change with similar precision to other outputs.') + ' ' + |
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_('At most 100 satoshis might be lost due to this rounding.') + ' ' + |
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_("You can disable this setting in '{}'.").format(_('Preferences')) + '\n' + |
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_('Also, dust is not kept as change, but added to the fee.') + '\n' + |
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_('Also, when batching RBF transactions, BIP 125 imposes a lower bound on the fee.')) |
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self.show_message(title=_('Fee rounding'), msg=text) |
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self.feerounding_icon = QToolButton() |
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self.feerounding_icon.setStyleSheet("background-color: rgba(255, 255, 255, 0); ") |
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self.feerounding_icon.setAutoRaise(True) |
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self.feerounding_icon.clicked.connect(feerounding_onclick) |
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self.set_feerounding_visibility(False) |
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self.fee_hbox = fee_hbox = QHBoxLayout() |
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fee_hbox.addWidget(self.feerate_e) |
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fee_hbox.addWidget(self.feerate_label) |
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fee_hbox.addWidget(self.size_label) |
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fee_hbox.addWidget(self.fee_e) |
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fee_hbox.addWidget(self.fee_label) |
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fee_hbox.addWidget(self.fiat_fee_label) |
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fee_hbox.addWidget(self.feerounding_icon) |
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fee_hbox.addStretch() |
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self.fee_target_hbox = fee_target_hbox = QHBoxLayout() |
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fee_target_hbox.addWidget(self.fee_target) |
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fee_target_hbox.addWidget(self.fee_slider) |
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fee_target_hbox.addWidget(self.fee_combo) |
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fee_target_hbox.addStretch() |
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# set feerate_label to same size as feerate_e |
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self.feerate_label.setFixedSize(self.feerate_e.sizeHint()) |
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self.fee_label.setFixedSize(self.fee_e.sizeHint()) |
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self.fee_slider.setFixedWidth(200) |
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self.fee_target.setFixedSize(self.feerate_e.sizeHint()) |
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def trigger_update(self): |
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# set tx to None so that the ok button is disabled while we compute the new tx |
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self.tx = None |
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self.messages = [] |
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self.error = '' |
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self._update_widgets() |
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self.needs_update = True |
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def fee_slider_callback(self, dyn, pos, fee_rate): |
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self.set_fee_config(dyn, pos, fee_rate) |
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self.fee_slider.activate() |
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if fee_rate: |
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fee_rate = Decimal(fee_rate) |
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self.feerate_e.setAmount(quantize_feerate(fee_rate / 1000)) |
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else: |
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self.feerate_e.setAmount(None) |
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self.fee_e.setModified(False) |
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self.update_fee_target() |
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self.update_feerate_label() |
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self.trigger_update() |
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def on_fee_or_feerate(self, edit_changed, editing_finished): |
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edit_other = self.feerate_e if edit_changed == self.fee_e else self.fee_e |
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if editing_finished: |
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if edit_changed.get_amount() is None: |
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# This is so that when the user blanks the fee and moves on, |
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# we go back to auto-calculate mode and put a fee back. |
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edit_changed.setModified(False) |
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else: |
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# edit_changed was edited just now, so make sure we will |
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# freeze the correct fee setting (this) |
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edit_other.setModified(False) |
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self.fee_slider.deactivate() |
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# do not call trigger_update on editing_finished, |
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# because that event is emitted when we press OK |
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self.trigger_update() |
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def is_send_fee_frozen(self): |
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return self.fee_e.isVisible() and self.fee_e.isModified() \ |
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and (self.fee_e.text() or self.fee_e.hasFocus()) |
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def is_send_feerate_frozen(self): |
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return self.feerate_e.isVisible() and self.feerate_e.isModified() \ |
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and (self.feerate_e.text() or self.feerate_e.hasFocus()) |
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def feerounding_text(self): |
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return (_('Additional {} satoshis are going to be added.').format(self.feerounding_sats)) |
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def set_feerounding_visibility(self, b:bool): |
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# we do not use setVisible because it affects the layout |
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self.feerounding_icon.setIcon(read_QIcon('info.png') if b else QIcon()) |
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self.feerounding_icon.setEnabled(b) |
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def get_fee_estimator(self): |
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if self.is_send_fee_frozen() and self.fee_e.get_amount() is not None: |
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fee_estimator = self.fee_e.get_amount() |
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elif self.is_send_feerate_frozen() and self.feerate_e.get_amount() is not None: |
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amount = self.feerate_e.get_amount() # sat/byte feerate |
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amount = 0 if amount is None else amount * 1000 # sat/kilobyte feerate |
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fee_estimator = partial( |
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SimpleConfig.estimate_fee_for_feerate, amount) |
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else: |
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fee_estimator = None |
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return fee_estimator |
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def entry_changed(self): |
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# blue color denotes auto-filled values |
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text = "" |
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fee_color = ColorScheme.DEFAULT |
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feerate_color = ColorScheme.DEFAULT |
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if self.not_enough_funds: |
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fee_color = ColorScheme.RED |
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feerate_color = ColorScheme.RED |
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elif self.fee_e.isModified(): |
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feerate_color = ColorScheme.BLUE |
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elif self.feerate_e.isModified(): |
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fee_color = ColorScheme.BLUE |
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else: |
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fee_color = ColorScheme.BLUE |
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feerate_color = ColorScheme.BLUE |
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self.fee_e.setStyleSheet(fee_color.as_stylesheet()) |
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self.feerate_e.setStyleSheet(feerate_color.as_stylesheet()) |
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# |
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self.needs_update = True |
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def update_fee_fields(self): |
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freeze_fee = self.is_send_fee_frozen() |
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freeze_feerate = self.is_send_feerate_frozen() |
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tx = self.tx |
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if self.no_dynfee_estimates and tx: |
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size = tx.estimated_size() |
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self.size_label.setAmount(size) |
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#self.size_e.setAmount(size) |
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if self.not_enough_funds or self.no_dynfee_estimates: |
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if not freeze_fee: |
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self.fee_e.setAmount(None) |
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if not freeze_feerate: |
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self.feerate_e.setAmount(None) |
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self.set_feerounding_visibility(False) |
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return |
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assert tx is not None |
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size = tx.estimated_size() |
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fee = tx.get_fee() |
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#self.size_e.setAmount(size) |
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self.size_label.setAmount(size) |
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fiat_fee = self.main_window.format_fiat_and_units(fee) |
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self.fiat_fee_label.setAmount(fiat_fee) |
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# Displayed fee/fee_rate values are set according to user input. |
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# Due to rounding or dropping dust in CoinChooser, |
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# actual fees often differ somewhat. |
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if freeze_feerate or self.fee_slider.is_active(): |
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displayed_feerate = self.feerate_e.get_amount() |
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if displayed_feerate is not None: |
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displayed_feerate = quantize_feerate(displayed_feerate) |
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elif self.fee_slider.is_active(): |
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# fallback to actual fee |
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displayed_feerate = quantize_feerate(fee / size) if fee is not None else None |
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self.feerate_e.setAmount(displayed_feerate) |
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displayed_fee = round(displayed_feerate * size) if displayed_feerate is not None else None |
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self.fee_e.setAmount(displayed_fee) |
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else: |
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if freeze_fee: |
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displayed_fee = self.fee_e.get_amount() |
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else: |
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# fallback to actual fee if nothing is frozen |
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displayed_fee = fee |
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self.fee_e.setAmount(displayed_fee) |
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displayed_fee = displayed_fee if displayed_fee else 0 |
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displayed_feerate = quantize_feerate(displayed_fee / size) if displayed_fee is not None else None |
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self.feerate_e.setAmount(displayed_feerate) |
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# set fee rounding icon to empty if there is no rounding |
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feerounding = (fee - displayed_fee) if (fee and displayed_fee is not None) else 0 |
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self.feerounding_sats = int(feerounding) |
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self.feerounding_icon.setToolTip(self.feerounding_text()) |
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self.set_feerounding_visibility(abs(feerounding) >= 1) |
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# feerate_label needs to be updated from feerate_e |
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self.update_feerate_label() |
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def create_buttons_bar(self): |
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self.preview_button = QPushButton(_('Preview')) |
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self.preview_button.clicked.connect(self.on_preview) |
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self.preview_button.setVisible(self.allow_preview) |
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self.ok_button = QPushButton(_('OK')) |
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self.ok_button.clicked.connect(self.on_send) |
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self.ok_button.setDefault(True) |
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buttons = Buttons(CancelButton(self), self.preview_button, self.ok_button) |
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return buttons |
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def create_top_bar(self, text): |
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self.pref_menu = QMenu() |
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self.pref_menu.setToolTipsVisible(True) |
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def add_pref_action(b, action, text, tooltip): |
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m = self.pref_menu.addAction(text, action) |
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m.setCheckable(True) |
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m.setChecked(b) |
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m.setToolTip(tooltip) |
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return m |
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def add_cv_action(configvar: 'ConfigVarWithConfig', action: Callable[[], None]): |
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b = configvar.get() |
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short_desc = configvar.get_short_desc() |
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assert short_desc is not None, f"short_desc missing for {configvar}" |
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tooltip = configvar.get_long_desc() or "" |
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return add_pref_action(b, action, short_desc, tooltip) |
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add_cv_action(self.config.cv.GUI_QT_TX_EDITOR_SHOW_IO, self.toggle_io_visibility) |
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add_cv_action(self.config.cv.GUI_QT_TX_EDITOR_SHOW_FEE_DETAILS, self.toggle_fee_details) |
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add_cv_action(self.config.cv.GUI_QT_TX_EDITOR_SHOW_LOCKTIME, self.toggle_locktime) |
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self.pref_menu.addSeparator() |
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add_cv_action(self.config.cv.WALLET_SEND_CHANGE_TO_LIGHTNING, self.toggle_send_change_to_lightning) |
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add_pref_action( |
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self.wallet.use_change, |
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self.toggle_use_change, |
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_('Use change addresses'), |
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_('Using change addresses makes it more difficult for other people to track your transactions.')) |
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self.use_multi_change_menu = add_pref_action( |
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self.wallet.multiple_change, self.toggle_multiple_change, |
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_('Use multiple change addresses',), |
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'\n'.join([ |
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_('In some cases, use up to 3 change addresses in order to break ' |
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'up large coin amounts and obfuscate the recipient address.'), |
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_('This may result in higher transactions fees.') |
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])) |
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self.use_multi_change_menu.setEnabled(self.wallet.use_change) |
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add_cv_action(self.config.cv.WALLET_BATCH_RBF, self.toggle_batch_rbf) |
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add_cv_action(self.config.cv.WALLET_SPEND_CONFIRMED_ONLY, self.toggle_confirmed_only) |
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add_cv_action(self.config.cv.WALLET_COIN_CHOOSER_OUTPUT_ROUNDING, self.toggle_output_rounding) |
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self.pref_button = QToolButton() |
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self.pref_button.setIcon(read_QIcon("preferences.png")) |
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self.pref_button.setMenu(self.pref_menu) |
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self.pref_button.setPopupMode(QToolButton.InstantPopup) |
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self.pref_button.setFocusPolicy(Qt.NoFocus) |
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hbox = QHBoxLayout() |
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hbox.addWidget(QLabel(text)) |
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hbox.addStretch() |
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hbox.addWidget(self.pref_button) |
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return hbox |
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def resize_to_fit_content(self): |
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# fixme: calling resize once is not enough... |
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size = self.layout().sizeHint() |
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self.resize(size) |
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self.resize(size) |
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def toggle_output_rounding(self): |
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b = not self.config.WALLET_COIN_CHOOSER_OUTPUT_ROUNDING |
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self.config.WALLET_COIN_CHOOSER_OUTPUT_ROUNDING = b |
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self.trigger_update() |
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def toggle_use_change(self): |
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self.wallet.use_change = not self.wallet.use_change |
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self.wallet.db.put('use_change', self.wallet.use_change) |
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self.use_multi_change_menu.setEnabled(self.wallet.use_change) |
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self.trigger_update() |
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def toggle_multiple_change(self): |
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self.wallet.multiple_change = not self.wallet.multiple_change |
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self.wallet.db.put('multiple_change', self.wallet.multiple_change) |
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self.trigger_update() |
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def toggle_batch_rbf(self): |
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b = not self.config.WALLET_BATCH_RBF |
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self.config.WALLET_BATCH_RBF = b |
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self.trigger_update() |
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def toggle_send_change_to_lightning(self): |
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b = not self.config.WALLET_SEND_CHANGE_TO_LIGHTNING |
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self.config.WALLET_SEND_CHANGE_TO_LIGHTNING = b |
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self.trigger_update() |
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def toggle_confirmed_only(self): |
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b = not self.config.WALLET_SPEND_CONFIRMED_ONLY |
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self.config.WALLET_SPEND_CONFIRMED_ONLY = b |
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self.trigger_update() |
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|
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def toggle_io_visibility(self): |
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b = not self.config.GUI_QT_TX_EDITOR_SHOW_IO |
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self.config.GUI_QT_TX_EDITOR_SHOW_IO = b |
|
self.set_io_visible(b) |
|
self.resize_to_fit_content() |
|
|
|
def toggle_fee_details(self): |
|
b = not self.config.GUI_QT_TX_EDITOR_SHOW_FEE_DETAILS |
|
self.config.GUI_QT_TX_EDITOR_SHOW_FEE_DETAILS = b |
|
self.set_fee_edit_visible(b) |
|
self.resize_to_fit_content() |
|
|
|
def toggle_locktime(self): |
|
b = not self.config.GUI_QT_TX_EDITOR_SHOW_LOCKTIME |
|
self.config.GUI_QT_TX_EDITOR_SHOW_LOCKTIME = b |
|
self.set_locktime_visible(b) |
|
self.resize_to_fit_content() |
|
|
|
def set_io_visible(self, b): |
|
self.io_widget.setVisible(b) |
|
|
|
def set_fee_edit_visible(self, b): |
|
detailed = [self.feerounding_icon, self.feerate_e, self.fee_e] |
|
basic = [self.fee_label, self.feerate_label] |
|
# first hide, then show |
|
for w in (basic if b else detailed): |
|
w.hide() |
|
for w in (detailed if b else basic): |
|
w.show() |
|
|
|
def set_locktime_visible(self, b): |
|
for w in [ |
|
self.locktime_e, |
|
self.locktime_label]: |
|
w.setVisible(b) |
|
|
|
def run(self): |
|
cancelled = not self.exec_() |
|
self.stop_editor_updates() |
|
self.deleteLater() # see #3956 |
|
return self.tx if not cancelled else None |
|
|
|
def on_send(self): |
|
self.accept() |
|
|
|
def on_preview(self): |
|
self.is_preview = True |
|
self.accept() |
|
|
|
def _update_widgets(self): |
|
# side effect: self.error |
|
self._update_amount_label() |
|
if self.not_enough_funds: |
|
self.error = _('Not enough funds.') |
|
confirmed_only = self.config.WALLET_SPEND_CONFIRMED_ONLY |
|
if confirmed_only and self.can_pay_assuming_zero_fees(confirmed_only=False): |
|
self.error += ' ' + _('Change your settings to allow spending unconfirmed coins.') |
|
elif self.can_pay_assuming_zero_fees(confirmed_only=confirmed_only): |
|
self.error += ' ' + _('You need to set a lower fee.') |
|
else: |
|
self.error += '' |
|
if not self.tx: |
|
if self.not_enough_funds: |
|
self.io_widget.update(None) |
|
self.set_feerounding_visibility(False) |
|
self.messages = [] |
|
else: |
|
self.messages = self.get_messages() |
|
self.update_fee_fields() |
|
if self.locktime_e.get_locktime() is None: |
|
self.locktime_e.set_locktime(self.tx.locktime) |
|
self.io_widget.update(self.tx) |
|
self.fee_label.setText(self.main_window.config.format_amount_and_units(self.tx.get_fee())) |
|
self._update_extra_fees() |
|
|
|
self._update_send_button() |
|
self._update_message() |
|
|
|
def get_messages(self): |
|
# side effect: self.error |
|
messages = [] |
|
fee = self.tx.get_fee() |
|
assert fee is not None |
|
amount = self.tx.output_value() if self.output_value == '!' else self.output_value |
|
tx_size = self.tx.estimated_size() |
|
fee_warning_tuple = self.wallet.get_tx_fee_warning( |
|
invoice_amt=amount, tx_size=tx_size, fee=fee) |
|
if fee_warning_tuple: |
|
allow_send, long_warning, short_warning = fee_warning_tuple |
|
if not allow_send: |
|
self.error = long_warning |
|
else: |
|
messages.append(long_warning) |
|
if self.tx.has_dummy_output(DummyAddress.SWAP): |
|
messages.append(_('This transaction will send funds to a submarine swap.')) |
|
# warn if spending unconf |
|
if any((txin.block_height is not None and txin.block_height<=0) for txin in self.tx.inputs()): |
|
messages.append(_('This transaction will spend unconfirmed coins.')) |
|
# warn if we merge from mempool |
|
if self.tx.rbf_merge_txid: |
|
messages.append(_('This payment will be merged with another existing transaction.')) |
|
# warn if we use multiple change outputs |
|
num_change = sum(int(o.is_change) for o in self.tx.outputs()) |
|
if num_change > 1: |
|
messages.append(_('This transaction has {} change outputs.'.format(num_change))) |
|
if num_change == 0: |
|
messages.append(_('Make sure you pay enough mining fees; you will not be able to bump the fee later.')) |
|
|
|
# TODO: warn if we send change back to input address |
|
return messages |
|
|
|
def set_locktime(self): |
|
if not self.tx: |
|
return |
|
locktime = self.locktime_e.get_locktime() |
|
if locktime is not None: |
|
self.tx.locktime = locktime |
|
|
|
def _update_amount_label(self): |
|
pass |
|
|
|
def _update_extra_fees(self): |
|
pass |
|
|
|
def _update_message(self): |
|
style = ColorScheme.RED if self.error else ColorScheme.BLUE |
|
message_str = '\n'.join(self.messages) if self.messages else '' |
|
self.message_label.setStyleSheet(style.as_stylesheet()) |
|
self.message_label.setText(self.error or message_str) |
|
|
|
def _update_send_button(self): |
|
enabled = bool(self.tx) and not self.error |
|
self.preview_button.setEnabled(enabled) |
|
self.ok_button.setEnabled(enabled) |
|
|
|
|
|
class ConfirmTxDialog(TxEditor): |
|
help_text = ''#_('Set the mining fee of your transaction') |
|
|
|
def __init__(self, *, window: 'ElectrumWindow', make_tx, output_value: Union[int, str], allow_preview=True): |
|
|
|
TxEditor.__init__( |
|
self, |
|
window=window, |
|
make_tx=make_tx, |
|
output_value=output_value, |
|
title=_("New Transaction"), # todo: adapt title for channel funding tx, swaps |
|
allow_preview=allow_preview) |
|
|
|
BlockingWaitingDialog(window, _("Preparing transaction..."), self.update) |
|
|
|
def _update_amount_label(self): |
|
tx = self.tx |
|
if self.output_value == '!': |
|
if tx: |
|
amount = tx.output_value() |
|
amount_str = self.main_window.format_amount_and_units(amount) |
|
else: |
|
amount_str = "max" |
|
else: |
|
amount = self.output_value |
|
amount_str = self.main_window.format_amount_and_units(amount) |
|
self.amount_label.setText(amount_str) |
|
|
|
def update_tx(self, *, fallback_to_zero_fee: bool = False): |
|
fee_estimator = self.get_fee_estimator() |
|
confirmed_only = self.config.WALLET_SPEND_CONFIRMED_ONLY |
|
try: |
|
self.tx = self.make_tx(fee_estimator, confirmed_only=confirmed_only) |
|
self.not_enough_funds = False |
|
self.no_dynfee_estimates = False |
|
except NotEnoughFunds: |
|
self.not_enough_funds = True |
|
self.tx = None |
|
if fallback_to_zero_fee: |
|
try: |
|
self.tx = self.make_tx(0, confirmed_only=confirmed_only) |
|
except BaseException: |
|
return |
|
else: |
|
return |
|
except NoDynamicFeeEstimates: |
|
self.no_dynfee_estimates = True |
|
self.tx = None |
|
try: |
|
self.tx = self.make_tx(0, confirmed_only=confirmed_only) |
|
except NotEnoughFunds: |
|
self.not_enough_funds = True |
|
return |
|
except BaseException: |
|
return |
|
except InternalAddressCorruption as e: |
|
self.tx = None |
|
self.main_window.show_error(str(e)) |
|
raise |
|
self.tx.set_rbf(True) |
|
|
|
def can_pay_assuming_zero_fees(self, confirmed_only) -> bool: |
|
# called in send_tab.py |
|
try: |
|
tx = self.make_tx(0, confirmed_only=confirmed_only) |
|
except NotEnoughFunds: |
|
return False |
|
else: |
|
return True |
|
|
|
def create_grid(self): |
|
grid = QGridLayout() |
|
msg = (_('The amount to be received by the recipient.') + ' ' |
|
+ _('Fees are paid by the sender.')) |
|
self.amount_label = QLabel('') |
|
self.amount_label.setTextInteractionFlags(Qt.TextSelectableByMouse) |
|
|
|
grid.addWidget(HelpLabel(_("Amount to be sent") + ": ", msg), 0, 0) |
|
grid.addWidget(self.amount_label, 0, 1) |
|
|
|
msg = _('Bitcoin transactions are in general not free. A transaction fee is paid by the sender of the funds.') + '\n\n'\ |
|
+ _('The amount of fee can be decided freely by the sender. However, transactions with low fees take more time to be processed.') + '\n\n'\ |
|
+ _('A suggested fee is automatically added to this field. You may override it. The suggested fee increases with the size of the transaction.') |
|
|
|
grid.addWidget(HelpLabel(_("Mining Fee") + ": ", msg), 1, 0) |
|
grid.addLayout(self.fee_hbox, 1, 1, 1, 3) |
|
|
|
grid.addWidget(HelpLabel(_("Fee target") + ": ", self.fee_combo.help_msg), 3, 0) |
|
grid.addLayout(self.fee_target_hbox, 3, 1, 1, 3) |
|
|
|
grid.setColumnStretch(4, 1) |
|
|
|
# extra fee |
|
self.extra_fee_label = QLabel(_("Additional fees") + ": ") |
|
self.extra_fee_label.setVisible(False) |
|
self.extra_fee_value = QLabel('') |
|
self.extra_fee_value.setTextInteractionFlags(Qt.TextSelectableByMouse) |
|
self.extra_fee_value.setVisible(False) |
|
grid.addWidget(self.extra_fee_label, 5, 0) |
|
grid.addWidget(self.extra_fee_value, 5, 1) |
|
|
|
# locktime editor |
|
grid.addWidget(self.locktime_label, 6, 0) |
|
grid.addWidget(self.locktime_e, 6, 1, 1, 2) |
|
|
|
return grid |
|
|
|
def _update_extra_fees(self): |
|
x_fee = run_hook('get_tx_extra_fee', self.wallet, self.tx) |
|
if x_fee: |
|
x_fee_address, x_fee_amount = x_fee |
|
self.extra_fee_label.setVisible(True) |
|
self.extra_fee_value.setVisible(True) |
|
self.extra_fee_value.setText(self.main_window.format_amount_and_units(x_fee_amount))
|
|
|