lib/gui_lite.py

   1 import sys
   2
   3 from PyQt4.QtCore import *
   4 from PyQt4.QtGui import *
   5
   6 from decimal import Decimal as D
   7 from util import get_resource_path as rsrc
   8 from i18n import _
   9 import decimal
  10 import exchange_rate
  11 import os.path
  12 import random
  13 import re
  14 import time
  15 import wallet
  16 import webbrowser
  17 import history_widget
  18 import util
  19
  20 try:
  21     import lib.gui_qt as gui_qt
  22 except ImportError:
  23     import electrum.gui_qt as gui_qt
  24
  25 bitcoin = lambda v: v * 100000000
  26
  27 def IconButton(filename, parent=None):
  28     pixmap = QPixmap(filename)
  29     icon = QIcon(pixmap)
  30     return QPushButton(icon, "", parent)
  31
  32 class Timer(QThread):
  33     def run(self):
  34         while True:
  35             self.emit(SIGNAL('timersignal'))
  36             time.sleep(0.5)
  37
  38 def resize_line_edit_width(line_edit, text_input):
  39     metrics = QFontMetrics(qApp.font())
  40     # Create an extra character to add some space on the end
  41     text_input += "A"
  42     line_edit.setMinimumWidth(metrics.width(text_input))
  43
  44 class ElectrumGui:
  45
  46     def __init__(self, wallet):
  47         self.wallet = wallet
  48         self.app = QApplication(sys.argv)
  49
  50     def main(self, url):
  51         actuator = MiniActuator(self.wallet)
  52         # Should probably not modify the current path but instead
  53         # change the behaviour of rsrc(...)
  54         old_path = QDir.currentPath()
  55         actuator.load_theme()
  56
  57         self.mini = MiniWindow(actuator, self.expand)
  58         driver = MiniDriver(self.wallet, self.mini)
  59
  60         # Reset path back to original value now that loading the GUI
  61         # is completed.
  62         QDir.setCurrent(old_path)
  63
  64         if url:
  65             self.set_url(url)
  66
  67         timer = Timer()
  68         timer.start()
  69         self.expert = gui_qt.ElectrumWindow(self.wallet)
  70         self.expert.app = self.app
  71         self.expert.connect_slots(timer)
  72         self.expert.update_wallet()
  73
  74         self.app.exec_()
  75
  76     def expand(self):
  77         self.mini.hide()
  78         self.expert.show()
  79
  80     def set_url(self, url):
  81         payto, amount, label, message, signature, identity, url = \
  82             self.wallet.parse_url(url, self.show_message, self.show_question)
  83         self.mini.set_payment_fields(payto, amount)
  84
  85     def show_message(self, message):
  86         QMessageBox.information(self.mini, _("Message"), message, _("OK"))
  87
  88     def show_question(self, message):
  89         choice = QMessageBox.question(self.mini, _("Message"), message,
  90                                       QMessageBox.Yes|QMessageBox.No,
  91                                       QMessageBox.No)
  92         return choice == QMessageBox.Yes
  93
  94     def restore_or_create(self):
  95         qt_gui_object = gui_qt.ElectrumGui(self.wallet, self.app)
  96         return qt_gui_object.restore_or_create()
  97
  98 class MiniWindow(QDialog):
  99
 100     def __init__(self, actuator, expand_callback):
 101         super(MiniWindow, self).__init__()
 102
 103         self.actuator = actuator
 104
 105         self.btc_balance = None
 106         self.quote_currencies = ["EUR", "USD", "GBP"]
 107         self.actuator.set_configured_currency(self.set_quote_currency)
 108         self.exchanger = exchange_rate.Exchanger(self)
 109         # Needed because price discovery is done in a different thread
 110         # which needs to be sent back to this main one to update the GUI
 111         self.connect(self, SIGNAL("refresh_balance()"), self.refresh_balance)
 112
 113         self.balance_label = BalanceLabel(self.change_quote_currency)
 114         self.balance_label.setObjectName("balance_label")
 115
 116         self.receive_button = QPushButton(_("&Receive"))
 117         self.receive_button.setObjectName("receive_button")
 118         self.receive_button.setDefault(True)
 119         self.receive_button.clicked.connect(self.copy_address)
 120
 121         # Bitcoin address code
 122         self.address_input = QLineEdit()
 123         self.address_input.setPlaceholderText(_("Enter a Bitcoin address..."))
 124         self.address_input.setObjectName("address_input")
 125
 126
 127         self.address_input.textEdited.connect(self.address_field_changed)
 128         resize_line_edit_width(self.address_input,
 129                                "1BtaFUr3qVvAmwrsuDuu5zk6e4s2rxd2Gy")
 130
 131         self.address_completions = QStringListModel()
 132         address_completer = QCompleter(self.address_input)
 133         address_completer.setCaseSensitivity(False)
 134         address_completer.setModel(self.address_completions)
 135         self.address_input.setCompleter(address_completer)
 136
 137         address_layout = QHBoxLayout()
 138         address_layout.addWidget(self.address_input)
 139
 140         self.amount_input = QLineEdit()
 141         self.amount_input.setPlaceholderText(_("... and amount"))
 142         self.amount_input.setObjectName("amount_input")
 143         # This is changed according to the user's displayed balance
 144         self.amount_validator = QDoubleValidator(self.amount_input)
 145         self.amount_validator.setNotation(QDoubleValidator.StandardNotation)
 146         self.amount_validator.setDecimals(8)
 147         self.amount_input.setValidator(self.amount_validator)
 148
 149         # This removes the very ugly OSX highlighting, please leave this in :D
 150         self.address_input.setAttribute(Qt.WA_MacShowFocusRect, 0)
 151         self.amount_input.setAttribute(Qt.WA_MacShowFocusRect, 0)
 152         self.amount_input.textChanged.connect(self.amount_input_changed)
 153
 154         self.send_button = QPushButton(_("&Send"))
 155         self.send_button.setObjectName("send_button")
 156         self.send_button.setDisabled(True);
 157         self.send_button.clicked.connect(self.send)
 158
 159         main_layout = QGridLayout(self)
 160
 161         main_layout.addWidget(self.balance_label, 0, 0)
 162         main_layout.addWidget(self.receive_button, 0, 1)
 163
 164         main_layout.addWidget(self.address_input, 1, 0, 1, -1)
 165
 166         main_layout.addWidget(self.amount_input, 2, 0)
 167         main_layout.addWidget(self.send_button, 2, 1)
 168
 169         self.history_list = history_widget.HistoryWidget()
 170         self.history_list.setObjectName("history")
 171         self.history_list.hide()
 172         self.history_list.setAlternatingRowColors(True)
 173         main_layout.addWidget(self.history_list, 3, 0, 1, -1)
 174
 175         menubar = QMenuBar()
 176         electrum_menu = menubar.addMenu(_("&Bitcoin"))
 177         self.servers_menu = electrum_menu.addMenu(_("&Servers"))
 178         self.servers_menu.addAction(_("Foo"))
 179         electrum_menu.addSeparator()
 180         brain_seed = electrum_menu.addAction(_("&BrainWallet Info"))
 181         brain_seed.triggered.connect(self.actuator.show_seed_dialog)
 182
 183         electrum_menu.addAction(_("&Quit"))
 184
 185         view_menu = menubar.addMenu(_("&View"))
 186         expert_gui = view_menu.addAction(_("&Pro Mode"))
 187         expert_gui.triggered.connect(expand_callback)
 188         view_menu.addMenu(_("&Themes"))
 189         view_menu.addSeparator()
 190         show_history = view_menu.addAction(_("Show History"))
 191         show_history.setCheckable(True)
 192         show_history.toggled.connect(self.show_history)
 193
 194         help_menu = menubar.addMenu(_("&Help"))
 195         the_website = help_menu.addAction(_("&Website"))
 196         the_website.triggered.connect(self.the_website)
 197         help_menu.addSeparator()
 198         report_bug = help_menu.addAction(_("&Report Bug"))
 199         report_bug.triggered.connect(self.show_report_bug)
 200         show_about = help_menu.addAction(_("&About"))
 201         show_about.triggered.connect(self.show_about)
 202         main_layout.setMenuBar(menubar)
 203
 204         quit_shortcut = QShortcut(QKeySequence("Ctrl+Q"), self)
 205         quit_shortcut.activated.connect(self.close)
 206         close_shortcut = QShortcut(QKeySequence("Ctrl+W"), self)
 207         close_shortcut.activated.connect(self.close)
 208
 209         self.setWindowIcon(QIcon(":electrum.png"))
 210         self.setWindowTitle("Electrum")
 211         self.setWindowFlags(Qt.Window|Qt.MSWindowsFixedSizeDialogHint)
 212         self.layout().setSizeConstraint(QLayout.SetFixedSize)
 213         self.setObjectName("main_window")
 214         self.show()
 215
 216     def recompute_style(self):
 217         qApp.style().unpolish(self)
 218         qApp.style().polish(self)
 219
 220     def closeEvent(self, event):
 221         super(MiniWindow, self).closeEvent(event)
 222         qApp.quit()
 223
 224     def set_payment_fields(self, dest_address, amount):
 225         self.address_input.setText(dest_address)
 226         self.address_field_changed(dest_address)
 227         self.amount_input.setText(amount)
 228
 229     def activate(self):
 230         pass
 231
 232     def deactivate(self):
 233         pass
 234
 235     def set_quote_currency(self, currency):
 236         assert currency in self.quote_currencies
 237         self.quote_currencies.remove(currency)
 238         self.quote_currencies = [currency] + self.quote_currencies
 239         self.refresh_balance()
 240
 241     def change_quote_currency(self):
 242         self.quote_currencies = \
 243             self.quote_currencies[1:] + self.quote_currencies[0:1]
 244         self.actuator.set_config_currency(self.quote_currencies[0])
 245         self.refresh_balance()
 246
 247     def refresh_balance(self):
 248         if self.btc_balance is None:
 249             # Price has been discovered before wallet has been loaded
 250             # and server connect... so bail.
 251             return
 252         self.set_balances(self.btc_balance)
 253         self.amount_input_changed(self.amount_input.text())
 254
 255     def set_balances(self, btc_balance):
 256         self.btc_balance = btc_balance
 257         quote_text = self.create_quote_text(btc_balance)
 258         if quote_text:
 259             quote_text = "(%s)" % quote_text
 260         btc_balance = "%.2f" % (btc_balance / bitcoin(1))
 261         self.balance_label.set_balance_text(btc_balance, quote_text)
 262         self.setWindowTitle("Electrum - %s BTC" % btc_balance)
 263
 264     def amount_input_changed(self, amount_text):
 265         self.check_button_status()
 266
 267         try:
 268             amount = D(str(amount_text))
 269         except decimal.InvalidOperation:
 270             self.balance_label.show_balance()
 271         else:
 272             quote_text = self.create_quote_text(amount * bitcoin(1))
 273             if quote_text:
 274                 self.balance_label.set_amount_text(quote_text)
 275                 self.balance_label.show_amount()
 276             else:
 277                 self.balance_label.show_balance()
 278
 279     def create_quote_text(self, btc_balance):
 280         quote_currency = self.quote_currencies[0]
 281         quote_balance = self.exchanger.exchange(btc_balance, quote_currency)
 282         if quote_balance is None:
 283             quote_text = ""
 284         else:
 285             quote_text = "%.2f %s" % ((quote_balance / bitcoin(1)),
 286                                       quote_currency)
 287         return quote_text
 288
 289     def send(self):
 290         if self.actuator.send(self.address_input.text(),
 291                               self.amount_input.text(), self):
 292             self.address_input.setText("")
 293             self.amount_input.setText("")
 294
 295     def check_button_status(self):
 296         if (self.address_input.property("isValid") == True and
 297             len(self.amount_input.text()) > 0):
 298             self.send_button.setDisabled(False)
 299         else:
 300             self.send_button.setDisabled(True)
 301
 302     def address_field_changed(self, address):
 303         if self.actuator.is_valid(address):
 304             self.check_button_status()
 305             self.address_input.setProperty("isValid", True)
 306             self.recompute_style(self.address_input)
 307         else:
 308             self.send_button.setDisabled(True)
 309             self.address_input.setProperty("isValid", False)
 310             self.recompute_style(self.address_input)
 311
 312         if len(address) == 0:
 313             self.address_input.setProperty("isValid", None)
 314             self.recompute_style(self.address_input)
 315
 316     def recompute_style(self, element):
 317         self.style().unpolish(element)
 318         self.style().polish(element)
 319
 320     def copy_address(self):
 321         receive_popup = ReceivePopup(self.receive_button)
 322         self.actuator.copy_address(receive_popup)
 323
 324     def update_completions(self, completions):
 325         self.address_completions.setStringList(completions)
 326
 327     def update_history(self, tx_history):
 328         for tx in tx_history[-10:]:
 329             address = tx["default_label"]
 330             amount = D(tx["value"]) / 10**8
 331             self.history_list.append(address, amount)
 332
 333     def acceptbit(self):
 334         self.actuator.acceptbit(self.quote_currencies[0])
 335
 336     def the_website(self):
 337         webbrowser.open("http://electrum-desktop.com")
 338
 339     def show_about(self):
 340         QMessageBox.about(self, "Electrum",
 341             _("Electrum's focus is speed, with low resource usage and simplifying Bitcoin. You do not need to perform regular backups, because your wallet can be recovered from a secret phrase that you can memorize or write on paper. Startup times are instant because it operates in conjuction with high-performance servers that handle the most complicated parts of the Bitcoin system.\n\nSend donations to 1JwTMv4GWaPdf931N6LNPJeZBfZgZJ3zX1"))
 342
 343     def show_report_bug(self):
 344         QMessageBox.information(self, "Electrum - " + _("Reporting Bugs"),
 345             _("Email bug reports to %s") % "genjix" + "@" + "riseup.net")
 346
 347     def show_history(self, toggle_state):
 348         if toggle_state:
 349             self.history_list.show()
 350         else:
 351             self.history_list.hide()
 352
 353 class BalanceLabel(QLabel):
 354
 355     SHOW_CONNECTING = 1
 356     SHOW_BALANCE = 2
 357     SHOW_AMOUNT = 3
 358
 359     def __init__(self, change_quote_currency, parent=None):
 360         super(QLabel, self).__init__(_("Connecting..."), parent)
 361         self.change_quote_currency = change_quote_currency
 362         self.state = self.SHOW_CONNECTING
 363         self.balance_text = ""
 364         self.amount_text = ""
 365
 366     def mousePressEvent(self, event):
 367         if self.state != self.SHOW_CONNECTING:
 368             self.change_quote_currency()
 369
 370     def set_balance_text(self, btc_balance, quote_text):
 371         if self.state == self.SHOW_CONNECTING:
 372             self.state = self.SHOW_BALANCE
 373         self.balance_text = "<span style='font-size: 18pt'>%s</span> <span style='font-size: 10pt'>BTC</span> <span style='font-size: 10pt'>%s</span>" % (btc_balance, quote_text)
 374         if self.state == self.SHOW_BALANCE:
 375             self.setText(self.balance_text)
 376
 377     def set_amount_text(self, quote_text):
 378         self.amount_text = "<span style='font-size: 10pt'>%s</span>" % quote_text
 379         if self.state == self.SHOW_AMOUNT:
 380             self.setText(self.amount_text)
 381
 382     def show_balance(self):
 383         if self.state == self.SHOW_AMOUNT:
 384             self.state = self.SHOW_BALANCE
 385             self.setText(self.balance_text)
 386
 387     def show_amount(self):
 388         if self.state == self.SHOW_BALANCE:
 389             self.state = self.SHOW_AMOUNT
 390             self.setText(self.amount_text)
 391
 392 def ok_cancel_buttons(dialog):
 393     row_layout = QHBoxLayout()
 394     row_layout.addStretch(1)
 395     ok_button = QPushButton(_("OK"))
 396     row_layout.addWidget(ok_button)
 397     ok_button.clicked.connect(dialog.accept)
 398     cancel_button = QPushButton(_("Cancel"))
 399     row_layout.addWidget(cancel_button)
 400     cancel_button.clicked.connect(dialog.reject)
 401     return row_layout
 402
 403 class PasswordDialog(QDialog):
 404
 405     def __init__(self, parent):
 406         super(QDialog, self).__init__(parent)
 407
 408         self.setModal(True)
 409
 410         self.password_input = QLineEdit()
 411         self.password_input.setEchoMode(QLineEdit.Password)
 412
 413         main_layout = QVBoxLayout(self)
 414         message = _('Please enter your password')
 415         main_layout.addWidget(QLabel(message))
 416
 417         grid = QGridLayout()
 418         grid.setSpacing(8)
 419         grid.addWidget(QLabel(_('Password')), 1, 0)
 420         grid.addWidget(self.password_input, 1, 1)
 421         main_layout.addLayout(grid)
 422
 423         main_layout.addLayout(ok_cancel_buttons(self))
 424         self.setLayout(main_layout)
 425
 426     def run(self):
 427         if not self.exec_():
 428             return
 429         return unicode(self.password_input.text())
 430
 431 class ReceivePopup(QDialog):
 432
 433     def leaveEvent(self, event):
 434         self.close()
 435
 436     def setup(self, address):
 437         label = QLabel(_("Copied your Bitcoin address to the clipboard!"))
 438         address_display = QLineEdit(address)
 439         address_display.setReadOnly(True)
 440         resize_line_edit_width(address_display, address)
 441
 442         main_layout = QVBoxLayout(self)
 443         main_layout.addWidget(label)
 444         main_layout.addWidget(address_display)
 445
 446         self.setMouseTracking(True)
 447         self.setWindowTitle("Electrum - " + _("Receive Bitcoin payment"))
 448         self.setWindowFlags(Qt.Window|Qt.FramelessWindowHint|Qt.MSWindowsFixedSizeDialogHint)
 449         self.layout().setSizeConstraint(QLayout.SetFixedSize)
 450         #self.setFrameStyle(QFrame.WinPanel|QFrame.Raised)
 451         #self.setAlignment(Qt.AlignCenter)
 452
 453     def popup(self):
 454         parent = self.parent()
 455         top_left_pos = parent.mapToGlobal(parent.rect().bottomLeft())
 456         self.move(top_left_pos)
 457         center_mouse_pos = self.mapToGlobal(self.rect().center())
 458         QCursor.setPos(center_mouse_pos)
 459         self.show()
 460
 461 class MiniActuator:
 462
 463     def __init__(self, wallet):
 464         self.wallet = wallet
 465
 466         self.theme_name = self.wallet.theme
 467         self.themes = util.load_theme_paths()
 468
 469     def load_theme(self):
 470         try:
 471             theme_prefix, theme_path = self.themes[self.theme_name]
 472         except KeyError:
 473             util.print_error("Theme not found! ", self.theme_name)
 474             return
 475         theme_css = os.path.join(theme_path, "style.css")
 476         QDir.setCurrent(theme_prefix)
 477         with open(rsrc(theme_css)) as style_file:
 478             qApp.setStyleSheet(style_file.read())
 479
 480     def theme_names(self):
 481         return self.themes.keys()
 482     def selected_theme(self):
 483         return self.theme_name
 484
 485     def set_configured_currency(self, set_quote_currency):
 486         currency = self.wallet.conversion_currency
 487         # currency can be none when Electrum is used for the first
 488         # time and no setting has been created yet.
 489         if currency is not None:
 490             set_quote_currency(currency)
 491
 492     def set_config_currency(self, conversion_currency):
 493         self.wallet.conversion_currency = conversion_currency
 494
 495     def copy_address(self, receive_popup):
 496         addrs = [addr for addr in self.wallet.all_addresses()
 497                  if not self.wallet.is_change(addr)]
 498         # Select most recent addresses from gap limit
 499         addrs = addrs[-self.wallet.gap_limit:]
 500         copied_address = random.choice(addrs)
 501         qApp.clipboard().setText(copied_address)
 502         receive_popup.setup(copied_address)
 503         receive_popup.popup()
 504
 505     def send(self, address, amount, parent_window):
 506         dest_address = self.fetch_destination(address)
 507
 508         if dest_address is None or not self.wallet.is_valid(dest_address):
 509             QMessageBox.warning(parent_window, _('Error'),
 510                 _('Invalid Bitcoin Address') + ':\n' + address, _('OK'))
 511             return False
 512
 513         convert_amount = lambda amount: \
 514             int(D(unicode(amount)) * bitcoin(1))
 515         amount = convert_amount(amount)
 516
 517         if self.wallet.use_encryption:
 518             password_dialog = PasswordDialog(parent_window)
 519             password = password_dialog.run()
 520             if not password:
 521                 return
 522         else:
 523             password = None
 524
 525         fee = 0
 526         # 0.1 BTC = 10000000
 527         if amount < bitcoin(1) / 10:
 528             # 0.001 BTC
 529             fee = bitcoin(1) / 1000
 530
 531         try:
 532             tx = self.wallet.mktx(dest_address, amount, "", password, fee)
 533         except BaseException as error:
 534             QMessageBox.warning(parent_window, _('Error'), str(error), _('OK'))
 535             return False
 536
 537         status, message = self.wallet.sendtx(tx)
 538         if not status:
 539             QMessageBox.warning(parent_window, _('Error'), message, _('OK'))
 540             return False
 541
 542         QMessageBox.information(parent_window, '',
 543             _('Payment sent.') + '\n' + message, _('OK'))
 544         return True
 545
 546     def fetch_destination(self, address):
 547         recipient = unicode(address).strip()
 548
 549         # alias
 550         match1 = re.match("^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$",
 551                           recipient)
 552
 553         # label or alias, with address in brackets
 554         match2 = re.match("(.*?)\s*\<([1-9A-HJ-NP-Za-km-z]{26,})\>",
 555                           recipient)
 556
 557         if match1:
 558             dest_address = \
 559                 self.wallet.get_alias(recipient, True,
 560                                       self.show_message, self.question)
 561             return dest_address
 562         elif match2:
 563             return match2.group(2)
 564         else:
 565             return recipient
 566
 567     def is_valid(self, address):
 568         return self.wallet.is_valid(address)
 569
 570     def acceptbit(self, currency):
 571         master_pubkey = self.wallet.master_public_key.encode("hex")
 572         url = "http://acceptbit.com/mpk/%s/%s" % (master_pubkey, currency)
 573         webbrowser.open(url)
 574
 575     def show_seed_dialog(self):
 576         gui_qt.ElectrumWindow.show_seed_dialog(self.wallet)
 577
 578 class MiniDriver(QObject):
 579
 580     INITIALIZING = 0
 581     CONNECTING = 1
 582     SYNCHRONIZING = 2
 583     READY = 3
 584
 585     def __init__(self, wallet, window):
 586         super(QObject, self).__init__()
 587
 588         self.wallet = wallet
 589         self.window = window
 590
 591         self.wallet.register_callback(self.update_callback)
 592
 593         self.state = None
 594
 595         self.initializing()
 596         self.connect(self, SIGNAL("updatesignal()"), self.update)
 597         self.update_callback()
 598
 599     # This is a hack to workaround that Qt does not like changing the
 600     # window properties from this other thread before the runloop has
 601     # been called from.
 602     def update_callback(self):
 603         self.emit(SIGNAL("updatesignal()"))
 604
 605     def update(self):
 606         if not self.wallet.interface:
 607             self.initializing()
 608         elif not self.wallet.interface.is_connected:
 609             self.connecting()
 610         elif not self.wallet.blocks == -1:
 611             self.connecting()
 612         elif not self.wallet.is_up_to_date:
 613             self.synchronizing()
 614         else:
 615             self.ready()
 616
 617         if self.wallet.up_to_date:
 618             self.update_balance()
 619             self.update_completions()
 620             self.update_history()
 621
 622     def initializing(self):
 623         if self.state == self.INITIALIZING:
 624             return
 625         self.state = self.INITIALIZING
 626         self.window.deactivate()
 627
 628     def connecting(self):
 629         if self.state == self.CONNECTING:
 630             return
 631         self.state = self.CONNECTING
 632         self.window.deactivate()
 633
 634     def synchronizing(self):
 635         if self.state == self.SYNCHRONIZING:
 636             return
 637         self.state = self.SYNCHRONIZING
 638         self.window.deactivate()
 639
 640     def ready(self):
 641         if self.state == self.READY:
 642             return
 643         self.state = self.READY
 644         self.window.activate()
 645
 646     def update_balance(self):
 647         conf_balance, unconf_balance = self.wallet.get_balance()
 648         balance = D(conf_balance + unconf_balance)
 649         self.window.set_balances(balance)
 650
 651     def update_completions(self):
 652         completions = []
 653         for addr, label in self.wallet.labels.items():
 654             if addr in self.wallet.addressbook:
 655                 completions.append("%s <%s>" % (label, addr))
 656         completions = completions + self.wallet.aliases.keys()
 657         self.window.update_completions(completions)
 658
 659     def update_history(self):
 660         tx_history = self.wallet.get_tx_history()
 661         self.window.update_history(tx_history)
 662
 663 if __name__ == "__main__":
 664     app = QApplication(sys.argv)
 665     with open(rsrc("style.css")) as style_file:
 666         app.setStyleSheet(style_file.read())
 667     mini = MiniWindow()
 668     sys.exit(app.exec_())
 669