X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=plugins%2Fexchange_rate.py;h=f8713a78ea64e89e6c5e78d5c4ebf9c08cda5847;hb=068609b4a65a172a15a24299b8a0fad0ef82898c;hp=e7da49742b2b426ec703fbfcabe4de567386375c;hpb=f9a52684e3fee5311b76cdb19d264e2a2ed667e7;p=electrum-nvc.git diff --git a/plugins/exchange_rate.py b/plugins/exchange_rate.py index e7da497..f8713a7 100644 --- a/plugins/exchange_rate.py +++ b/plugins/exchange_rate.py @@ -6,11 +6,27 @@ import decimal import httplib import json import threading +import time import re from decimal import Decimal from electrum.plugins import BasePlugin from electrum.i18n import _ from electrum_gui.qt.util import * +from electrum_gui.qt.amountedit import AmountEdit + + +EXCHANGES = ["BitcoinAverage", + "BitcoinVenezuela", + "Bitcurex", + "Bitmarket", + "BitPay", + "Blockchain", + "BTCChina", + "CaVirtEx", + "Coinbase", + "CoinDesk", + "LocalBitcoins", + "Winkdex"] class Exchanger(threading.Thread): @@ -21,13 +37,30 @@ class Exchanger(threading.Thread): self.parent = parent self.quote_currencies = None self.lock = threading.Lock() + self.query_rates = threading.Event() self.use_exchange = self.parent.config.get('use_exchange', "Blockchain") - self.parent.exchanges = ["Blockchain", "Coinbase", "CoinDesk"] - self.parent.currencies = ["EUR","GBP","USD"] + self.parent.exchanges = EXCHANGES + self.parent.currencies = ["EUR","GBP","USD","PLN"] self.parent.win.emit(SIGNAL("refresh_exchanges_combo()")) self.parent.win.emit(SIGNAL("refresh_currencies_combo()")) self.is_running = False + def get_json(self, site, get_string): + try: + connection = httplib.HTTPSConnection(site) + connection.request("GET", get_string) + except Exception: + raise + resp = connection.getresponse() + if resp.reason == httplib.responses[httplib.NOT_FOUND]: + raise + try: + json_resp = json.loads(resp.read()) + except Exception: + raise + return json_resp + + def exchange(self, btc_amount, quote_currency): with self.lock: if self.quote_currencies is None: @@ -37,47 +70,47 @@ class Exchanger(threading.Thread): return None if self.use_exchange == "CoinDesk": try: - connection = httplib.HTTPSConnection('api.coindesk.com') - connection.request("GET", "/v1/bpi/currentprice/" + str(quote_currency) + ".json") - except Exception: - return - resp = connection.getresponse() - if resp.reason == httplib.responses[httplib.NOT_FOUND]: - return - try: - resp_rate = json.loads(resp.read()) + resp_rate = self.get_json('api.coindesk.com', "/v1/bpi/currentprice/" + str(quote_currency) + ".json") except Exception: return return btc_amount * decimal.Decimal(str(resp_rate["bpi"][str(quote_currency)]["rate_float"])) - return btc_amount * decimal.Decimal(quote_currencies[quote_currency]) + return btc_amount * decimal.Decimal(str(quote_currencies[quote_currency])) def stop(self): self.is_running = False + def update_rate(self): + self.use_exchange = self.parent.config.get('use_exchange', "Blockchain") + update_rates = { + "BitcoinAverage": self.update_ba, + "BitcoinVenezuela": self.update_bv, + "Bitcurex": self.update_bx, + "Bitmarket": self.update_bm, + "BitPay": self.update_bp, + "Blockchain": self.update_bc, + "BTCChina": self.update_CNY, + "CaVirtEx": self.update_cv, + "CoinDesk": self.update_cd, + "Coinbase": self.update_cb, + "LocalBitcoins": self.update_lb, + "Winkdex": self.update_wd, + } + try: + update_rates[self.use_exchange]() + except KeyError: + return + def run(self): self.is_running = True while self.is_running: - self.use_exchange = self.parent.config.get('use_exchange', "Blockchain") - if self.use_exchange == "Blockchain": - self.update_bc() - elif self.use_exchange == "CoinDesk": - self.update_cd() - elif self.use_exchange == "Coinbase": - self.update_cb() - time.sleep(150) + self.query_rates.clear() + self.update_rate() + self.query_rates.wait(150) def update_cd(self): try: - connection = httplib.HTTPSConnection('api.coindesk.com') - connection.request("GET", "/v1/bpi/supported-currencies.json") - except Exception: - return - response = connection.getresponse() - if response.reason == httplib.responses[httplib.NOT_FOUND]: - return - try: - resp_currencies = json.loads(response.read()) + resp_currencies = self.get_json('api.coindesk.com', "/v1/bpi/supported-currencies.json") except Exception: return @@ -88,26 +121,110 @@ class Exchanger(threading.Thread): self.quote_currencies = quote_currencies self.parent.set_currencies(quote_currencies) - def update_cb(self): + def update_wd(self): try: - connection = httplib.HTTPSConnection('coinbase.com') - connection.request("GET", "/api/v1/currencies/exchange_rates") + winkresp = self.get_json('winkdex.com', "/static/data/0_600_288.json") + ####could need nonce value in GET, no Docs available except Exception: return - response = connection.getresponse() - if response.reason == httplib.responses[httplib.NOT_FOUND]: + quote_currencies = {"USD": 0.0} + ####get y of highest x in "prices" + lenprices = len(winkresp["prices"]) + usdprice = winkresp["prices"][lenprices-1]["y"] + try: + quote_currencies["USD"] = decimal.Decimal(str(usdprice)) + with self.lock: + self.quote_currencies = quote_currencies + except KeyError: + pass + self.parent.set_currencies(quote_currencies) + + def update_cv(self): + try: + jsonresp = self.get_json('www.cavirtex.com', "/api/CAD/ticker.json") + except Exception: return + quote_currencies = {"CAD": 0.0} + cadprice = jsonresp["last"] + try: + quote_currencies["CAD"] = decimal.Decimal(str(cadprice)) + with self.lock: + self.quote_currencies = quote_currencies + except KeyError: + pass + self.parent.set_currencies(quote_currencies) + def update_bm(self): try: - response = json.loads(response.read()) + jsonresp = self.get_json('www.bitmarket.pl', "/json/BTCPLN/ticker.json") except Exception: return + quote_currencies = {"PLN": 0.0} + pln_price = jsonresp["last"] + try: + quote_currencies["PLN"] = decimal.Decimal(str(pln_price)) + with self.lock: + self.quote_currencies = quote_currencies + except KeyError: + pass + self.parent.set_currencies(quote_currencies) + + def update_bx(self): + try: + jsonresp = self.get_json('pln.bitcurex.com', "/data/ticker.json") + except Exception: + return + quote_currencies = {"PLN": 0.0} + pln_price = jsonresp["last"] + try: + quote_currencies["PLN"] = decimal.Decimal(str(pln_price)) + with self.lock: + self.quote_currencies = quote_currencies + except KeyError: + pass + self.parent.set_currencies(quote_currencies) + + def update_CNY(self): + try: + jsonresp = self.get_json('data.btcchina.com', "/data/ticker") + except Exception: + return + quote_currencies = {"CNY": 0.0} + cnyprice = jsonresp["ticker"]["last"] + try: + quote_currencies["CNY"] = decimal.Decimal(str(cnyprice)) + with self.lock: + self.quote_currencies = quote_currencies + except KeyError: + pass + self.parent.set_currencies(quote_currencies) + def update_bp(self): + try: + jsonresp = self.get_json('bitpay.com', "/api/rates") + except Exception: + return quote_currencies = {} try: - for r in response: + for r in jsonresp: + quote_currencies[str(r["code"])] = decimal.Decimal(r["rate"]) + with self.lock: + self.quote_currencies = quote_currencies + except KeyError: + pass + self.parent.set_currencies(quote_currencies) + + def update_cb(self): + try: + jsonresp = self.get_json('coinbase.com', "/api/v1/currencies/exchange_rates") + except Exception: + return + + quote_currencies = {} + try: + for r in jsonresp: if r[:7] == "btc_to_": - quote_currencies[r[7:].upper()] = self._lookup_rate_cb(response, r) + quote_currencies[r[7:].upper()] = self._lookup_rate_cb(jsonresp, r) with self.lock: self.quote_currencies = quote_currencies except KeyError: @@ -117,29 +234,69 @@ class Exchanger(threading.Thread): def update_bc(self): try: - connection = httplib.HTTPSConnection('blockchain.info') - connection.request("GET", "/ticker") + jsonresp = self.get_json('blockchain.info', "/ticker") except Exception: return - response = connection.getresponse() - if response.reason == httplib.responses[httplib.NOT_FOUND]: + quote_currencies = {} + try: + for r in jsonresp: + quote_currencies[r] = self._lookup_rate(jsonresp, r) + with self.lock: + self.quote_currencies = quote_currencies + except KeyError: + pass + self.parent.set_currencies(quote_currencies) + # print "updating exchange rate", self.quote_currencies["USD"] + + def update_lb(self): + try: + jsonresp = self.get_json('localbitcoins.com', "/bitcoinaverage/ticker-all-currencies/") + except Exception: return + quote_currencies = {} try: - response = json.loads(response.read()) + for r in jsonresp: + quote_currencies[r] = self._lookup_rate_lb(jsonresp, r) + with self.lock: + self.quote_currencies = quote_currencies + except KeyError: + pass + self.parent.set_currencies(quote_currencies) + + + def update_bv(self): + try: + jsonresp = self.get_json('api.bitcoinvenezuela.com', "/") except Exception: return quote_currencies = {} try: - for r in response: - quote_currencies[r] = self._lookup_rate(response, r) + for r in jsonresp["BTC"]: + quote_currencies[r] = Decimal(jsonresp["BTC"][r]) + with self.lock: + self.quote_currencies = quote_currencies + except KeyError: + pass + self.parent.set_currencies(quote_currencies) + + + def update_ba(self): + try: + jsonresp = self.get_json('api.bitcoinaverage.com', "/ticker/global/all") + except Exception: + return + quote_currencies = {} + try: + for r in jsonresp: + if not r == "timestamp": + quote_currencies[r] = self._lookup_rate_ba(jsonresp, r) with self.lock: self.quote_currencies = quote_currencies except KeyError: pass self.parent.set_currencies(quote_currencies) - # print "updating exchange rate", self.quote_currencies["USD"] - + def get_currencies(self): return [] if self.quote_currencies == None else sorted(self.quote_currencies.keys()) @@ -147,7 +304,10 @@ class Exchanger(threading.Thread): return decimal.Decimal(str(response[str(quote_id)]["15m"])) def _lookup_rate_cb(self, response, quote_id): return decimal.Decimal(str(response[str(quote_id)])) - + def _lookup_rate_ba(self, response, quote_id): + return decimal.Decimal(response[str(quote_id)]["last"]) + def _lookup_rate_lb(self, response, quote_id): + return decimal.Decimal(response[str(quote_id)]["rates"]["last"]) class Plugin(BasePlugin): @@ -161,33 +321,59 @@ class Plugin(BasePlugin): def __init__(self,a,b): BasePlugin.__init__(self,a,b) - self.currencies = [self.config.get('currency', "EUR")] + self.currencies = [self.fiat_unit()] self.exchanges = [self.config.get('use_exchange', "Blockchain")] def init(self): self.win = self.gui.main_window self.win.connect(self.win, SIGNAL("refresh_currencies()"), self.win.update_status) + self.btc_rate = Decimal("0.0") # Do price discovery self.exchanger = Exchanger(self) self.exchanger.start() self.gui.exchanger = self.exchanger # + self.add_fiat_edit() def set_currencies(self, currency_options): self.currencies = sorted(currency_options) self.win.emit(SIGNAL("refresh_currencies()")) self.win.emit(SIGNAL("refresh_currencies_combo()")) - - def set_quote_text(self, btc_balance, r): - r[0] = self.create_quote_text(Decimal(btc_balance) / 100000000) - - def create_quote_text(self, btc_balance): - quote_currency = self.config.get("currency", "EUR") + def get_fiat_balance_text(self, btc_balance, r): + # return balance as: 1.23 USD + r[0] = self.create_fiat_balance_text(Decimal(btc_balance) / 100000000) + + def get_fiat_price_text(self, r): + # return BTC price as: 123.45 USD + r[0] = self.create_fiat_balance_text(1) + quote = r[0] + if quote: + r[0] = "%s"%quote + + def get_fiat_status_text(self, btc_balance, r2): + # return status as: (1.23 USD) 1 BTC~123.45 USD + text = "" + r = {} + self.get_fiat_price_text(r) + quote = r.get(0) + if quote: + price_text = "1 BTC~%s"%quote + fiat_currency = quote[-3:] + btc_price = self.btc_rate + fiat_balance = Decimal(btc_price) * (Decimal(btc_balance)/100000000) + balance_text = "(%.2f %s)" % (fiat_balance,fiat_currency) + text = " " + balance_text + " " + price_text + " " + r2[0] = text + + def create_fiat_balance_text(self, btc_balance): + quote_currency = self.fiat_unit() self.exchanger.use_exchange = self.config.get("use_exchange", "Blockchain") - quote_balance = self.exchanger.exchange(btc_balance, quote_currency) - if quote_balance is None: + cur_rate = self.exchanger.exchange(Decimal("1.0"), quote_currency) + if cur_rate is None: quote_text = "" else: + quote_balance = btc_balance * Decimal(cur_rate) + self.btc_rate = cur_rate quote_text = "%.2f %s" % (quote_balance, quote_currency) return quote_text @@ -197,18 +383,23 @@ class Plugin(BasePlugin): for item in self.wallet.get_tx_history(self.wallet.storage.get("current_account", None)): tx_hash, conf, is_mine, value, fee, balance, timestamp = item tx_list[tx_hash] = {'value': value, 'timestamp': timestamp, 'balance': balance} - + self.tx_list = tx_list - + def requires_settings(self): return True def toggle(self): - out = BasePlugin.toggle(self) + enabled = BasePlugin.toggle(self) self.win.update_status() - return out + self.win.tabs.removeTab(1) + new_send_tab = self.gui.main_window.create_send_tab() + self.win.tabs.insertTab(1, new_send_tab, _('Send')) + if enabled: + self.add_fiat_edit() + return enabled def close(self): @@ -216,22 +407,42 @@ class Plugin(BasePlugin): def history_tab_update(self): if self.config.get('history_rates', 'unchecked') == "checked": - tx_list = self.tx_list - - mintimestr = datetime.datetime.fromtimestamp(int(min(tx_list.items(), key=lambda x: x[1]['timestamp'])[1]['timestamp'])).strftime('%Y-%m-%d') - maxtimestr = datetime.datetime.fromtimestamp(int( max(tx_list.items(), key=lambda x: x[1]['timestamp'])[1]['timestamp'])).strftime('%Y-%m-%d') + cur_exchange = self.config.get('use_exchange', "Blockchain") try: - connection = httplib.HTTPSConnection('api.coindesk.com') - connection.request("GET", "/v1/bpi/historical/close.json?start=" + mintimestr + "&end=" + maxtimestr) + tx_list = self.tx_list except Exception: return - resp = connection.getresponse() - if resp.reason == httplib.responses[httplib.NOT_FOUND]: - return + try: - resp_hist = json.loads(resp.read()) + mintimestr = datetime.datetime.fromtimestamp(int(min(tx_list.items(), key=lambda x: x[1]['timestamp'])[1]['timestamp'])).strftime('%Y-%m-%d') except Exception: return + maxtimestr = datetime.datetime.now().strftime('%Y-%m-%d') + + if cur_exchange == "CoinDesk": + try: + resp_hist = self.exchanger.get_json('api.coindesk.com', "/v1/bpi/historical/close.json?start=" + mintimestr + "&end=" + maxtimestr) + except Exception: + return + elif cur_exchange == "Winkdex": + try: + resp_hist = self.exchanger.get_json('winkdex.com', "/static/data/0_86400_730.json")['prices'] + except Exception: + return + elif cur_exchange == "BitcoinVenezuela": + cur_currency = self.fiat_unit() + if cur_currency == "VEF": + try: + resp_hist = self.exchanger.get_json('api.bitcoinvenezuela.com', "/historical/index.php?coin=BTC")['VEF_BTC'] + except Exception: + return + elif cur_currency == "ARS": + try: + resp_hist = self.exchanger.get_json('api.bitcoinvenezuela.com', "/historical/index.php?coin=BTC")['ARS_BTC'] + except Exception: + return + else: + return self.gui.main_window.is_edit = True self.gui.main_window.history_list.setColumnCount(6) @@ -240,26 +451,56 @@ class Plugin(BasePlugin): childcount = root.childCount() for i in range(childcount): item = root.child(i) - tx_info = tx_list[str(item.data(0, Qt.UserRole).toPyObject())] + try: + tx_info = tx_list[str(item.data(0, Qt.UserRole).toPyObject())] + except Exception: + newtx = self.wallet.get_tx_history() + v = newtx[[x[0] for x in newtx].index(str(item.data(0, Qt.UserRole).toPyObject()))][3] + + tx_info = {'timestamp':int(time.time()), 'value': v } + pass tx_time = int(tx_info['timestamp']) - tx_time_str = datetime.datetime.fromtimestamp(tx_time).strftime('%Y-%m-%d') - tx_USD_val = "%.2f %s" % (Decimal(tx_info['value']) / 100000000 * Decimal(resp_hist['bpi'][tx_time_str]), "USD") + if cur_exchange == "CoinDesk": + tx_time_str = datetime.datetime.fromtimestamp(tx_time).strftime('%Y-%m-%d') + try: + tx_USD_val = "%.2f %s" % (Decimal(str(tx_info['value'])) / 100000000 * Decimal(resp_hist['bpi'][tx_time_str]), "USD") + except KeyError: + tx_USD_val = "%.2f %s" % (self.btc_rate * Decimal(str(tx_info['value']))/100000000 , "USD") + elif cur_exchange == "Winkdex": + tx_time_str = int(tx_time) - (int(tx_time) % (60 * 60 * 24)) + try: + tx_rate = resp_hist[[x['x'] for x in resp_hist].index(tx_time_str)]['y'] + tx_USD_val = "%.2f %s" % (Decimal(tx_info['value']) / 100000000 * Decimal(tx_rate), "USD") + except ValueError: + tx_USD_val = "%.2f %s" % (self.btc_rate * Decimal(tx_info['value'])/100000000 , "USD") + elif cur_exchange == "BitcoinVenezuela": + tx_time_str = datetime.datetime.fromtimestamp(tx_time).strftime('%Y-%m-%d') + try: + num = resp_hist[tx_time_str].replace(',','') + tx_BTCVEN_val = "%.2f %s" % (Decimal(str(tx_info['value'])) / 100000000 * Decimal(num), cur_currency) + except KeyError: + tx_BTCVEN_val = _("No data") + + if cur_exchange == "CoinDesk" or cur_exchange == "Winkdex": + item.setText(5, tx_USD_val) + elif cur_exchange == "BitcoinVenezuela": + item.setText(5, tx_BTCVEN_val) + if Decimal(str(tx_info['value'])) < 0: + item.setForeground(5, QBrush(QColor("#BC1E1E"))) - - item.setText(5, tx_USD_val) - for i, width in enumerate(self.gui.main_window.column_widths['history']): self.gui.main_window.history_list.setColumnWidth(i, width) self.gui.main_window.history_list.setColumnWidth(4, 140) self.gui.main_window.history_list.setColumnWidth(5, 120) self.gui.main_window.is_edit = False - + def settings_widget(self, window): return EnterButton(_('Settings'), self.settings_dialog) def settings_dialog(self): d = QDialog() + d.setWindowTitle("Settings") layout = QGridLayout(d) layout.addWidget(QLabel(_('Exchange rate API: ')), 0, 0) layout.addWidget(QLabel(_('Currency: ')), 1, 0) @@ -275,35 +516,54 @@ class Plugin(BasePlugin): ok_button = QPushButton(_("OK")) def on_change(x): - cur_request = str(self.currencies[x]) - if cur_request != self.config.get('currency', "EUR"): + try: + cur_request = str(self.currencies[x]) + except Exception: + return + if cur_request != self.fiat_unit(): self.config.set_key('currency', cur_request, True) - if cur_request == "USD" and self.config.get('use_exchange', "Blockchain") == "CoinDesk": + cur_exchange = self.config.get('use_exchange', "Blockchain") + if cur_request == "USD" and (cur_exchange == "CoinDesk" or cur_exchange == "Winkdex"): + hist_checkbox.setEnabled(True) + elif cur_request == "VEF" and (cur_exchange == "BitcoinVenezuela"): + hist_checkbox.setEnabled(True) + elif cur_request == "ARS" and (cur_exchange == "BitcoinVenezuela"): hist_checkbox.setEnabled(True) else: hist_checkbox.setChecked(False) hist_checkbox.setEnabled(False) self.win.update_status() + try: + self.fiat_button + except: + pass + else: + self.fiat_button.setText(cur_request) + + def disable_check(): + hist_checkbox.setChecked(False) + hist_checkbox.setEnabled(False) def on_change_ex(x): cur_request = str(self.exchanges[x]) if cur_request != self.config.get('use_exchange', "Blockchain"): self.config.set_key('use_exchange', cur_request, True) - if cur_request == "Blockchain": - self.exchanger.update_bc() - hist_checkbox.setChecked(False) - hist_checkbox.setEnabled(False) - elif cur_request == "CoinDesk": - self.exchanger.update_cd() - if self.config.get('currency', "EUR") == "USD": + self.currencies = [] + combo.clear() + self.exchanger.query_rates.set() + cur_currency = self.fiat_unit() + if cur_request == "CoinDesk" or cur_request == "Winkdex": + if cur_currency == "USD": hist_checkbox.setEnabled(True) else: - hist_checkbox.setChecked(False) - hist_checkbox.setEnabled(False) - elif cur_request == "Coinbase": - self.exchanger.update_cb() - hist_checkbox.setChecked(False) - hist_checkbox.setEnabled(False) + disable_check() + elif cur_request == "BitcoinVenezuela": + if cur_currency == "VEF" or cur_currency == "ARS": + hist_checkbox.setEnabled(True) + else: + disable_check() + else: + disable_check() set_currencies(combo) self.win.update_status() @@ -319,13 +579,16 @@ class Plugin(BasePlugin): self.gui.main_window.history_list.setColumnWidth(i, width) def set_hist_check(hist_checkbox): - if self.config.get('use_exchange', "Blockchain") == "CoinDesk": + cur_exchange = self.config.get('use_exchange', "Blockchain") + if cur_exchange == "CoinDesk" or cur_exchange == "Winkdex": + hist_checkbox.setEnabled(True) + elif cur_exchange == "BitcoinVenezuela": hist_checkbox.setEnabled(True) else: - hist_checkbox.setEnabled(False) - + hist_checkbox.setEnabled(False) + def set_currencies(combo): - current_currency = self.config.get('currency', "EUR") + current_currency = self.fiat_unit() try: combo.clear() except Exception: @@ -358,18 +621,45 @@ class Plugin(BasePlugin): combo.currentIndexChanged.connect(on_change) combo_ex.currentIndexChanged.connect(on_change_ex) hist_checkbox.stateChanged.connect(on_change_hist) - combo.connect(d, SIGNAL('refresh_currencies_combo()'), lambda: set_currencies(combo)) + combo.connect(self.win, SIGNAL('refresh_currencies_combo()'), lambda: set_currencies(combo)) combo_ex.connect(d, SIGNAL('refresh_exchanges_combo()'), lambda: set_exchanges(combo_ex)) ok_button.clicked.connect(lambda: ok_clicked()) layout.addWidget(combo,1,1) layout.addWidget(combo_ex,0,1) layout.addWidget(hist_checkbox,2,1) layout.addWidget(ok_button,3,1) - + if d.exec_(): return True else: return False + def fiat_unit(self): + return self.config.get("currency", "EUR") - + def add_fiat_edit(self): + self.fiat_e = AmountEdit(self.fiat_unit) + self.btc_e = self.win.amount_e + grid = self.btc_e.parent() + def fiat_changed(): + try: + fiat_amount = Decimal(str(self.fiat_e.text())) + except: + self.btc_e.setText("") + return + exchange_rate = self.exchanger.exchange(Decimal("1.0"), self.fiat_unit()) + if exchange_rate is not None: + btc_amount = fiat_amount/exchange_rate + self.btc_e.setAmount(int(btc_amount*Decimal(100000000))) + self.fiat_e.textEdited.connect(fiat_changed) + def btc_changed(): + btc_amount = self.btc_e.get_amount() + if btc_amount is None: + self.fiat_e.setText("") + return + fiat_amount = self.exchanger.exchange(Decimal(btc_amount)/Decimal(100000000), self.fiat_unit()) + if fiat_amount is not None: + self.fiat_e.setText("%.2f"%fiat_amount) + self.btc_e.textEdited.connect(btc_changed) + self.btc_e.frozen.connect(lambda: self.fiat_e.setFrozen(self.btc_e.isReadOnly())) + self.win.send_grid.addWidget(self.fiat_e, 4, 3, Qt.AlignHCenter)