plugins/exchange_rate.py

   1 from PyQt4.QtGui import *
   2 from PyQt4.QtCore import *
   3
   4 import datetime
   5 import decimal
   6 import httplib
   7 import json
   8 import threading
   9 import time
  10 import re
  11 from decimal import Decimal
  12 from electrum.plugins import BasePlugin
  13 from electrum.i18n import _
  14 from electrum_gui.qt.util import *
  15 from electrum_gui.qt.amountedit import AmountEdit
  16
  17
  18 EXCHANGES = ["BitcoinAverage",
  19              "BitcoinVenezuela",
  20              "BitPay",
  21              "Blockchain",
  22              "BTCChina",
  23              "CaVirtEx",
  24              "Coinbase",
  25              "CoinDesk",
  26              "LocalBitcoins",
  27              "Winkdex"]
  28
  29
  30 class Exchanger(threading.Thread):
  31
  32     def __init__(self, parent):
  33         threading.Thread.__init__(self)
  34         self.daemon = True
  35         self.parent = parent
  36         self.quote_currencies = None
  37         self.lock = threading.Lock()
  38         self.query_rates = threading.Event()
  39         self.use_exchange = self.parent.config.get('use_exchange', "Blockchain")
  40         self.parent.exchanges = EXCHANGES
  41         self.parent.currencies = ["EUR","GBP","USD"]
  42         self.parent.win.emit(SIGNAL("refresh_exchanges_combo()"))
  43         self.parent.win.emit(SIGNAL("refresh_currencies_combo()"))
  44         self.is_running = False
  45
  46     def get_json(self, site, get_string):
  47         try:
  48             connection = httplib.HTTPSConnection(site)
  49             connection.request("GET", get_string)
  50         except Exception:
  51             raise
  52         resp = connection.getresponse()
  53         if resp.reason == httplib.responses[httplib.NOT_FOUND]:
  54             raise
  55         try:
  56             json_resp = json.loads(resp.read())
  57         except Exception:
  58             raise
  59         return json_resp
  60
  61
  62     def exchange(self, btc_amount, quote_currency):
  63         with self.lock:
  64             if self.quote_currencies is None:
  65                 return None
  66             quote_currencies = self.quote_currencies.copy()
  67         if quote_currency not in quote_currencies:
  68             return None
  69         if self.use_exchange == "CoinDesk":
  70             try:
  71                 resp_rate = self.get_json('api.coindesk.com', "/v1/bpi/currentprice/" + str(quote_currency) + ".json")
  72             except Exception:
  73                 return
  74             return btc_amount * decimal.Decimal(str(resp_rate["bpi"][str(quote_currency)]["rate_float"]))
  75         return btc_amount * decimal.Decimal(str(quote_currencies[quote_currency]))
  76
  77     def stop(self):
  78         self.is_running = False
  79
  80     def update_rate(self):
  81         self.use_exchange = self.parent.config.get('use_exchange', "Blockchain")
  82         update_rates = {
  83             "BitcoinAverage": self.update_ba,
  84             "BitcoinVenezuela": self.update_bv,
  85             "BitPay": self.update_bp,
  86             "Blockchain": self.update_bc,
  87             "BTCChina": self.update_CNY,
  88             "CaVirtEx": self.update_cv,
  89             "CoinDesk": self.update_cd,
  90             "Coinbase": self.update_cb,
  91             "LocalBitcoins": self.update_lb,
  92             "Winkdex": self.update_wd,
  93         }
  94         try:
  95             update_rates[self.use_exchange]()
  96         except KeyError:
  97             return
  98
  99     def run(self):
 100         self.is_running = True
 101         while self.is_running:
 102             self.query_rates.clear()
 103             self.update_rate()
 104             self.query_rates.wait(150)
 105
 106
 107     def update_cd(self):
 108         try:
 109             resp_currencies = self.get_json('api.coindesk.com', "/v1/bpi/supported-currencies.json")
 110         except Exception:
 111             return
 112
 113         quote_currencies = {}
 114         for cur in resp_currencies:
 115             quote_currencies[str(cur["currency"])] = 0.0
 116         with self.lock:
 117             self.quote_currencies = quote_currencies
 118         self.parent.set_currencies(quote_currencies)
 119
 120     def update_wd(self):
 121         try:
 122             winkresp = self.get_json('winkdex.com', "/static/data/0_600_288.json")
 123             ####could need nonce value in GET, no Docs available
 124         except Exception:
 125             return
 126         quote_currencies = {"USD": 0.0}
 127         ####get y of highest x in "prices"
 128         lenprices = len(winkresp["prices"])
 129         usdprice = winkresp["prices"][lenprices-1]["y"]
 130         try:
 131             quote_currencies["USD"] = decimal.Decimal(str(usdprice))
 132             with self.lock:
 133                 self.quote_currencies = quote_currencies
 134         except KeyError:
 135             pass
 136         self.parent.set_currencies(quote_currencies)
 137
 138     def update_cv(self):
 139         try:
 140             jsonresp = self.get_json('www.cavirtex.com', "/api/CAD/ticker.json")
 141         except Exception:
 142             return
 143         quote_currencies = {"CAD": 0.0}
 144         cadprice = jsonresp["last"]
 145         try:
 146             quote_currencies["CAD"] = decimal.Decimal(str(cadprice))
 147             with self.lock:
 148                 self.quote_currencies = quote_currencies
 149         except KeyError:
 150             pass
 151         self.parent.set_currencies(quote_currencies)
 152
 153     def update_CNY(self):
 154         try:
 155             jsonresp = self.get_json('data.btcchina.com', "/data/ticker")
 156         except Exception:
 157             return
 158         quote_currencies = {"CNY": 0.0}
 159         cnyprice = jsonresp["ticker"]["last"]
 160         try:
 161             quote_currencies["CNY"] = decimal.Decimal(str(cnyprice))
 162             with self.lock:
 163                 self.quote_currencies = quote_currencies
 164         except KeyError:
 165             pass
 166         self.parent.set_currencies(quote_currencies)
 167
 168     def update_bp(self):
 169         try:
 170             jsonresp = self.get_json('bitpay.com', "/api/rates")
 171         except Exception:
 172             return
 173         quote_currencies = {}
 174         try:
 175             for r in jsonresp:
 176                 quote_currencies[str(r["code"])] = decimal.Decimal(r["rate"])
 177             with self.lock:
 178                 self.quote_currencies = quote_currencies
 179         except KeyError:
 180             pass
 181         self.parent.set_currencies(quote_currencies)
 182
 183     def update_cb(self):
 184         try:
 185             jsonresp = self.get_json('coinbase.com', "/api/v1/currencies/exchange_rates")
 186         except Exception:
 187             return
 188
 189         quote_currencies = {}
 190         try:
 191             for r in jsonresp:
 192                 if r[:7] == "btc_to_":
 193                     quote_currencies[r[7:].upper()] = self._lookup_rate_cb(jsonresp, r)
 194             with self.lock:
 195                 self.quote_currencies = quote_currencies
 196         except KeyError:
 197             pass
 198         self.parent.set_currencies(quote_currencies)
 199
 200
 201     def update_bc(self):
 202         try:
 203             jsonresp = self.get_json('blockchain.info', "/ticker")
 204         except Exception:
 205             return
 206         quote_currencies = {}
 207         try:
 208             for r in jsonresp:
 209                 quote_currencies[r] = self._lookup_rate(jsonresp, r)
 210             with self.lock:
 211                 self.quote_currencies = quote_currencies
 212         except KeyError:
 213             pass
 214         self.parent.set_currencies(quote_currencies)
 215         # print "updating exchange rate", self.quote_currencies["USD"]
 216
 217     def update_lb(self):
 218         try:
 219             jsonresp = self.get_json('localbitcoins.com', "/bitcoinaverage/ticker-all-currencies/")
 220         except Exception:
 221             return
 222         quote_currencies = {}
 223         try:
 224             for r in jsonresp:
 225                 quote_currencies[r] = self._lookup_rate_lb(jsonresp, r)
 226             with self.lock:
 227                 self.quote_currencies = quote_currencies
 228         except KeyError:
 229             pass
 230         self.parent.set_currencies(quote_currencies)
 231
 232
 233     def update_bv(self):
 234         try:
 235             jsonresp = self.get_json('api.bitcoinvenezuela.com', "/")
 236         except Exception:
 237             return
 238         quote_currencies = {}
 239         try:
 240             for r in jsonresp["BTC"]:
 241                 quote_currencies[r] = Decimal(jsonresp["BTC"][r])
 242             with self.lock:
 243                 self.quote_currencies = quote_currencies
 244         except KeyError:
 245             pass
 246         self.parent.set_currencies(quote_currencies)
 247
 248
 249     def update_ba(self):
 250         try:
 251             jsonresp = self.get_json('api.bitcoinaverage.com', "/ticker/global/all")
 252         except Exception:
 253             return
 254         quote_currencies = {}
 255         try:
 256             for r in jsonresp:
 257                 if not r == "timestamp":
 258                     quote_currencies[r] = self._lookup_rate_ba(jsonresp, r)
 259             with self.lock:
 260                 self.quote_currencies = quote_currencies
 261         except KeyError:
 262             pass
 263         self.parent.set_currencies(quote_currencies)
 264
 265
 266     def get_currencies(self):
 267         return [] if self.quote_currencies == None else sorted(self.quote_currencies.keys())
 268
 269     def _lookup_rate(self, response, quote_id):
 270         return decimal.Decimal(str(response[str(quote_id)]["15m"]))
 271     def _lookup_rate_cb(self, response, quote_id):
 272         return decimal.Decimal(str(response[str(quote_id)]))
 273     def _lookup_rate_ba(self, response, quote_id):
 274         return decimal.Decimal(response[str(quote_id)]["last"])
 275     def _lookup_rate_lb(self, response, quote_id):
 276         return decimal.Decimal(response[str(quote_id)]["rates"]["last"])
 277
 278
 279 class Plugin(BasePlugin):
 280
 281     def fullname(self):
 282         return "Exchange rates"
 283
 284     def description(self):
 285         return """exchange rates, retrieved from blockchain.info, CoinDesk, or Coinbase"""
 286
 287
 288     def __init__(self,a,b):
 289         BasePlugin.__init__(self,a,b)
 290         self.currencies = [self.config.get('currency', "EUR")]
 291         self.exchanges = [self.config.get('use_exchange', "Blockchain")]
 292
 293     def init(self):
 294         self.win = self.gui.main_window
 295         self.win.connect(self.win, SIGNAL("refresh_currencies()"), self.win.update_status)
 296         self.btc_rate = Decimal("0.0")
 297         # Do price discovery
 298         self.exchanger = Exchanger(self)
 299         self.exchanger.start()
 300         self.gui.exchanger = self.exchanger #
 301
 302     def set_currencies(self, currency_options):
 303         self.currencies = sorted(currency_options)
 304         self.win.emit(SIGNAL("refresh_currencies()"))
 305         self.win.emit(SIGNAL("refresh_currencies_combo()"))
 306
 307     def get_fiat_balance_text(self, btc_balance, r):
 308         # return balance as: 1.23 USD
 309         r[0] = self.create_fiat_balance_text(Decimal(btc_balance) / 100000000)
 310
 311     def get_fiat_price_text(self, r):
 312         # return BTC price as: 123.45 USD
 313         r[0] = self.create_fiat_balance_text(1)
 314         quote = r[0]
 315         if quote:
 316             r[0] = "%s"%quote
 317
 318     def get_fiat_status_text(self, btc_balance, r2):
 319         # return status as:   (1.23 USD)    1 BTC~123.45 USD
 320         text = ""
 321         r = {}
 322         self.get_fiat_price_text(r)
 323         quote = r.get(0)
 324         if quote:
 325             price_text = "1 BTC~%s"%quote
 326             fiat_currency = quote[-3:]
 327             btc_price = quote[:-4]
 328             fiat_balance = Decimal(btc_price) * (Decimal(btc_balance)/100000000)
 329             balance_text = "(%.2f %s)" % (fiat_balance,fiat_currency)
 330             text = "  " + balance_text + "     " + price_text + " "
 331         r2[0] = text
 332
 333     def create_fiat_balance_text(self, btc_balance):
 334         quote_currency = self.config.get("currency", "EUR")
 335         self.exchanger.use_exchange = self.config.get("use_exchange", "Blockchain")
 336         cur_rate = self.exchanger.exchange(Decimal("1.0"), quote_currency)
 337         if cur_rate is None:
 338             quote_text = ""
 339         else:
 340             quote_balance = btc_balance * Decimal(cur_rate)
 341             self.btc_rate = cur_rate
 342             quote_text = "%.2f %s" % (quote_balance, quote_currency)
 343         return quote_text
 344
 345     def load_wallet(self, wallet):
 346         self.wallet = wallet
 347         tx_list = {}
 348         for item in self.wallet.get_tx_history(self.wallet.storage.get("current_account", None)):
 349             tx_hash, conf, is_mine, value, fee, balance, timestamp = item
 350             tx_list[tx_hash] = {'value': value, 'timestamp': timestamp, 'balance': balance}
 351
 352         self.tx_list = tx_list
 353
 354
 355     def requires_settings(self):
 356         return True
 357
 358
 359     def toggle(self):
 360         out = BasePlugin.toggle(self)
 361         self.win.update_status()
 362         if self.config.get('use_exchange_rate'):
 363             try:
 364                 self.fiat_button
 365             except:
 366                 self.gui.main_window.show_message(_("To see fiat amount when sending bitcoin, please restart Electrum to activate the new GUI settings."))
 367         return out
 368
 369
 370     def close(self):
 371         self.exchanger.stop()
 372
 373     def history_tab_update(self):
 374         if self.config.get('history_rates', 'unchecked') == "checked":
 375             cur_exchange = self.config.get('use_exchange', "Blockchain")
 376             try:
 377                 tx_list = self.tx_list
 378             except Exception:
 379                 return
 380
 381             try:
 382                 mintimestr = datetime.datetime.fromtimestamp(int(min(tx_list.items(), key=lambda x: x[1]['timestamp'])[1]['timestamp'])).strftime('%Y-%m-%d')
 383             except Exception:
 384                 return
 385             maxtimestr = datetime.datetime.now().strftime('%Y-%m-%d')
 386
 387             if cur_exchange == "CoinDesk":
 388                 try:
 389                     resp_hist = self.exchanger.get_json('api.coindesk.com', "/v1/bpi/historical/close.json?start=" + mintimestr + "&end=" + maxtimestr)
 390                 except Exception:
 391                     return
 392             elif cur_exchange == "Winkdex":
 393                 try:
 394                     resp_hist = self.exchanger.get_json('winkdex.com', "/static/data/0_86400_730.json")['prices']
 395                 except Exception:
 396                     return
 397             elif cur_exchange == "BitcoinVenezuela":
 398                 cur_currency = self.config.get('currency', "EUR")
 399                 if cur_currency == "VEF":
 400                     try:
 401                         resp_hist = self.exchanger.get_json('api.bitcoinvenezuela.com', "/historical/index.php")['VEF_BTC']
 402                     except Exception:
 403                         return
 404                 elif cur_currency == "ARS":
 405                     try:
 406                         resp_hist = self.exchanger.get_json('api.bitcoinvenezuela.com', "/historical/index.php")['ARS_BTC']
 407                     except Exception:
 408                         return
 409                 else:
 410                     return
 411
 412             self.gui.main_window.is_edit = True
 413             self.gui.main_window.history_list.setColumnCount(6)
 414             self.gui.main_window.history_list.setHeaderLabels( [ '', _('Date'), _('Description') , _('Amount'), _('Balance'), _('Fiat Amount')] )
 415             root = self.gui.main_window.history_list.invisibleRootItem()
 416             childcount = root.childCount()
 417             for i in range(childcount):
 418                 item = root.child(i)
 419                 try:
 420                     tx_info = tx_list[str(item.data(0, Qt.UserRole).toPyObject())]
 421                 except Exception:
 422                     newtx = self.wallet.get_tx_history()
 423                     v = newtx[[x[0] for x in newtx].index(str(item.data(0, Qt.UserRole).toPyObject()))][3]
 424
 425                     tx_info = {'timestamp':int(time.time()), 'value': v }
 426                     pass
 427                 tx_time = int(tx_info['timestamp'])
 428                 if cur_exchange == "CoinDesk":
 429                     tx_time_str = datetime.datetime.fromtimestamp(tx_time).strftime('%Y-%m-%d')
 430                     try:
 431                         tx_USD_val = "%.2f %s" % (Decimal(str(tx_info['value'])) / 100000000 * Decimal(resp_hist['bpi'][tx_time_str]), "USD")
 432                     except KeyError:
 433                         tx_USD_val = "%.2f %s" % (self.btc_rate * Decimal(str(tx_info['value']))/100000000 , "USD")
 434                 elif cur_exchange == "Winkdex":
 435                     tx_time_str = int(tx_time) - (int(tx_time) % (60 * 60 * 24))
 436                     try:
 437                         tx_rate = resp_hist[[x['x'] for x in resp_hist].index(tx_time_str)]['y']
 438                         tx_USD_val = "%.2f %s" % (Decimal(tx_info['value']) / 100000000 * Decimal(tx_rate), "USD")
 439                     except ValueError:
 440                         tx_USD_val = "%.2f %s" % (self.btc_rate * Decimal(tx_info['value'])/100000000 , "USD")
 441                 elif cur_exchange == "BitcoinVenezuela":
 442                     tx_time_str = datetime.datetime.fromtimestamp(tx_time).strftime('%Y-%m-%d')
 443                     try:
 444                         num = resp_hist[tx_time_str].replace(',','')
 445                         tx_BTCVEN_val = "%.2f %s" % (Decimal(str(tx_info['value'])) / 100000000 * Decimal(num), cur_currency)
 446                     except KeyError:
 447                         tx_BTCVEN_val = _("No data")
 448
 449                 if cur_exchange == "CoinDesk" or cur_exchange == "Winkdex":
 450                     item.setText(5, tx_USD_val)
 451                 elif cur_exchange == "BitcoinVenezuela":
 452                     item.setText(5, tx_BTCVEN_val)
 453                 if Decimal(str(tx_info['value'])) < 0:
 454                     item.setForeground(5, QBrush(QColor("#BC1E1E")))
 455
 456             for i, width in enumerate(self.gui.main_window.column_widths['history']):
 457                 self.gui.main_window.history_list.setColumnWidth(i, width)
 458             self.gui.main_window.history_list.setColumnWidth(4, 140)
 459             self.gui.main_window.history_list.setColumnWidth(5, 120)
 460             self.gui.main_window.is_edit = False
 461
 462
 463     def settings_widget(self, window):
 464         return EnterButton(_('Settings'), self.settings_dialog)
 465
 466     def settings_dialog(self):
 467         d = QDialog()
 468         d.setWindowTitle("Settings")
 469         layout = QGridLayout(d)
 470         layout.addWidget(QLabel(_('Exchange rate API: ')), 0, 0)
 471         layout.addWidget(QLabel(_('Currency: ')), 1, 0)
 472         layout.addWidget(QLabel(_('History Rates: ')), 2, 0)
 473         combo = QComboBox()
 474         combo_ex = QComboBox()
 475         hist_checkbox = QCheckBox()
 476         hist_checkbox.setEnabled(False)
 477         if self.config.get('history_rates', 'unchecked') == 'unchecked':
 478             hist_checkbox.setChecked(False)
 479         else:
 480             hist_checkbox.setChecked(True)
 481         ok_button = QPushButton(_("OK"))
 482
 483         def on_change(x):
 484             try:
 485                 cur_request = str(self.currencies[x])
 486             except Exception:
 487                 return
 488             if cur_request != self.config.get('currency', "EUR"):
 489                 self.config.set_key('currency', cur_request, True)
 490                 cur_exchange = self.config.get('use_exchange', "Blockchain")
 491                 if cur_request == "USD" and (cur_exchange == "CoinDesk" or cur_exchange == "Winkdex"):
 492                     hist_checkbox.setEnabled(True)
 493                 elif cur_request == "VEF" and (cur_exchange == "BitcoinVenezuela"):
 494                     hist_checkbox.setEnabled(True)
 495                 elif cur_request == "ARS" and (cur_exchange == "BitcoinVenezuela"):
 496                     hist_checkbox.setEnabled(True)
 497                 else:
 498                     hist_checkbox.setChecked(False)
 499                     hist_checkbox.setEnabled(False)
 500                 self.win.update_status()
 501                 try:
 502                     self.fiat_button
 503                 except:
 504                     pass
 505                 else:
 506                     self.fiat_button.setText(cur_request)
 507
 508         def disable_check():
 509             hist_checkbox.setChecked(False)
 510             hist_checkbox.setEnabled(False)
 511
 512         def on_change_ex(x):
 513             cur_request = str(self.exchanges[x])
 514             if cur_request != self.config.get('use_exchange', "Blockchain"):
 515                 self.config.set_key('use_exchange', cur_request, True)
 516                 self.currencies = []
 517                 combo.clear()
 518                 self.exchanger.query_rates.set()
 519                 cur_currency = self.config.get('currency', "EUR")
 520                 if cur_request == "CoinDesk" or cur_request == "Winkdex":
 521                     if cur_currency == "USD":
 522                         hist_checkbox.setEnabled(True)
 523                     else:
 524                         disable_check()
 525                 elif cur_request == "BitcoinVenezuela":
 526                     if cur_currency == "VEF" or cur_currency == "ARS":
 527                         hist_checkbox.setEnabled(True)
 528                     else:
 529                         disable_check()
 530                 else:
 531                     disable_check()
 532                 set_currencies(combo)
 533                 self.win.update_status()
 534
 535         def on_change_hist(checked):
 536             if checked:
 537                 self.config.set_key('history_rates', 'checked')
 538                 self.history_tab_update()
 539             else:
 540                 self.config.set_key('history_rates', 'unchecked')
 541                 self.gui.main_window.history_list.setHeaderLabels( [ '', _('Date'), _('Description') , _('Amount'), _('Balance')] )
 542                 self.gui.main_window.history_list.setColumnCount(5)
 543                 for i,width in enumerate(self.gui.main_window.column_widths['history']):
 544                     self.gui.main_window.history_list.setColumnWidth(i, width)
 545
 546         def set_hist_check(hist_checkbox):
 547             cur_exchange = self.config.get('use_exchange', "Blockchain")
 548             if cur_exchange == "CoinDesk" or cur_exchange == "Winkdex":
 549                 hist_checkbox.setEnabled(True)
 550             elif cur_exchange == "BitcoinVenezuela":
 551                 hist_checkbox.setEnabled(True)
 552             else:
 553                 hist_checkbox.setEnabled(False)
 554
 555         def set_currencies(combo):
 556             current_currency = self.config.get('currency', "EUR")
 557             try:
 558                 combo.clear()
 559             except Exception:
 560                 return
 561             combo.addItems(self.currencies)
 562             try:
 563                 index = self.currencies.index(current_currency)
 564             except Exception:
 565                 index = 0
 566             combo.setCurrentIndex(index)
 567
 568         def set_exchanges(combo_ex):
 569             try:
 570                 combo_ex.clear()
 571             except Exception:
 572                 return
 573             combo_ex.addItems(self.exchanges)
 574             try:
 575                 index = self.exchanges.index(self.config.get('use_exchange', "Blockchain"))
 576             except Exception:
 577                 index = 0
 578             combo_ex.setCurrentIndex(index)
 579
 580         def ok_clicked():
 581             d.accept();
 582
 583         set_exchanges(combo_ex)
 584         set_currencies(combo)
 585         set_hist_check(hist_checkbox)
 586         combo.currentIndexChanged.connect(on_change)
 587         combo_ex.currentIndexChanged.connect(on_change_ex)
 588         hist_checkbox.stateChanged.connect(on_change_hist)
 589         combo.connect(self.win, SIGNAL('refresh_currencies_combo()'), lambda: set_currencies(combo))
 590         combo_ex.connect(d, SIGNAL('refresh_exchanges_combo()'), lambda: set_exchanges(combo_ex))
 591         ok_button.clicked.connect(lambda: ok_clicked())
 592         layout.addWidget(combo,1,1)
 593         layout.addWidget(combo_ex,0,1)
 594         layout.addWidget(hist_checkbox,2,1)
 595         layout.addWidget(ok_button,3,1)
 596
 597         if d.exec_():
 598             return True
 599         else:
 600             return False
 601
 602     def fiat_unit(self):
 603         quote_currency = self.config.get("currency", "???")
 604         return quote_currency
 605
 606     def fiat_dialog(self):
 607         if not self.config.get('use_exchange_rate'):
 608           self.gui.main_window.show_message(_("To use this feature, first enable the exchange rate plugin."))
 609           return
 610
 611         if not self.gui.main_window.network.is_connected():
 612           self.gui.main_window.show_message(_("To use this feature, you must have a network connection."))
 613           return
 614
 615         quote_currency = self.fiat_unit()
 616
 617         d = QDialog(self.gui.main_window)
 618         d.setWindowTitle("Fiat")
 619         vbox = QVBoxLayout(d)
 620         text = "Amount to Send in " + quote_currency
 621         vbox.addWidget(QLabel(_(text)+':'))
 622
 623         grid = QGridLayout()
 624         fiat_e = AmountEdit(self.fiat_unit)
 625         grid.addWidget(fiat_e, 1, 0)
 626
 627         r = {}
 628         self.get_fiat_price_text(r)
 629         quote = r.get(0)
 630         if quote:
 631           text = "1 BTC~%s"%quote
 632           grid.addWidget(QLabel(_(text)), 4, 0, 3, 0)
 633         else:
 634             self.gui.main_window.show_message(_("Exchange rate not available.  Please check your network connection."))
 635             return
 636
 637         vbox.addLayout(grid)
 638         vbox.addLayout(ok_cancel_buttons(d))
 639
 640         if not d.exec_():
 641             return
 642
 643         fiat = str(fiat_e.text())
 644
 645         if str(fiat) == "" or str(fiat) == ".":
 646             fiat = "0"
 647
 648         quote = quote[:-4]
 649         btcamount = Decimal(fiat) / Decimal(quote)
 650         if str(self.gui.main_window.base_unit()) == "mBTC":
 651             btcamount = btcamount * 1000
 652         quote = "%.8f"%btcamount
 653         self.gui.main_window.amount_e.setText( quote )
 654
 655     def exchange_rate_button(self, grid):
 656         quote_currency = self.config.get("currency", "EUR")
 657         self.fiat_button = EnterButton(_(quote_currency), self.fiat_dialog)
 658         grid.addWidget(self.fiat_button, 4, 3, Qt.AlignHCenter)