lib/gui_lite.py

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