def update_fee_fields(self):
freeze_fee = self.is_send_fee_frozen()
freeze_feerate = self.is_send_feerate_frozen()
tx = self.tx
if self.no_dynfee_estimates and tx:
size = tx.estimated_size()
self.size_e.setAmount(size)
if self.not_enough_funds or self.no_dynfee_estimates:
if not freeze_fee:
self.fee_e.setAmount(None)
if not freeze_feerate:
self.feerate_e.setAmount(None)
self.feerounding_icon.setVisible(False)
return
assert tx is not None
size = tx.estimated_size()
fee = tx.get_fee()
self.size_e.setAmount(size)
fiat_fee = self.main_window.format_fiat_and_units(fee)
self.fiat_fee_label.setAmount(fiat_fee)
# Displayed fee/fee_rate values are set according to user input.
# Due to rounding or dropping dust in CoinChooser,
# actual fees often differ somewhat.
if freeze_feerate or self.fee_slider.is_active():
displayed_feerate = self.feerate_e.get_amount()
if displayed_feerate is not None:
displayed_feerate = quantize_feerate(displayed_feerate)
elif self.fee_slider.is_active():
# fallback to actual fee
displayed_feerate = quantize_feerate(fee * 1000 / size) if fee is not None else None
self.feerate_e.setAmount(displayed_feerate)
displayed_fee = round(displayed_feerate * size / 1000) if displayed_feerate is not None else None
self.fee_e.setAmount(displayed_fee)
else:
if freeze_fee:
displayed_fee = self.fee_e.get_amount()
else:
# fallback to actual fee if nothing is frozen
displayed_fee = fee
self.fee_e.setAmount(displayed_fee)
displayed_fee = displayed_fee if displayed_fee else 0
displayed_feerate = quantize_feerate(displayed_fee * 1000 / size) if displayed_fee is not None else None
self.feerate_e.setAmount(displayed_feerate)
# show/hide fee rounding icon
feerounding = (fee - displayed_fee) if (fee and displayed_fee is not None) else 0
self.set_feerounding_text(int(feerounding))
self.feerounding_icon.setToolTip(self.feerounding_text)
self.feerounding_icon.setVisible(abs(feerounding) >= 1)
if not self.is_ps_tx: # PS coinchooser does not use fee rounding
feerounding = (fee - displayed_fee) if fee else 0
if abs(feerounding) >= 1:
self.set_feerounding_text(int(feerounding))
if self.config.get('show_fee', False):
self.feerounding_icon.setVisible(True)
def fee_slider_callback(self, dyn, pos, fee_rate):
super().fee_slider_callback(dyn, pos, fee_rate)
self.fee_slider.activate()
if fee_rate:
fee_rate = Decimal(fee_rate)
self.feerate_e.setAmount(quantize_feerate(fee_rate))
else:
self.feerate_e.setAmount(None)
self.fee_e.setModified(False)
def setAmount(self, amount):
amount = quantize_feerate(amount)
super().setAmount(amount)
def get_amount(self):
sat_per_kb_amount = BTCAmountEdit.get_amount(self)
return quantize_feerate(sat_per_kb_amount)
