gui/gui_lite.py

   1 import sys
   2
   3 # Let's do some dep checking and handle missing ones gracefully
   4 try:
   5     from PyQt4.QtCore import *
   6     from PyQt4.QtGui import *
   7     from PyQt4.Qt import Qt
   8     import PyQt4.QtCore as QtCore
   9
  10 except ImportError:
  11     print "You need to have PyQT installed to run Electrum in graphical mode."
  12     print "If you have pip installed try 'sudo pip install pyqt' if you are on Debian/Ubuntu try 'sudo apt-get install python-qt4'."
  13     sys.exit(0)
  14
  15 from decimal import Decimal as D
  16 from electrum.util import get_resource_path as rsrc
  17 from electrum.bitcoin import is_valid
  18 from i18n import _
  19 import decimal
  20 import exchange_rate
  21 import json
  22 import os.path
  23 import random
  24 import re
  25 import time
  26 from electrum.wallet import Wallet, WalletStorage
  27 import webbrowser
  28 import history_widget
  29 import receiving_widget
  30 from electrum import util
  31 import csv
  32 import datetime
  33
  34 from electrum.version import ELECTRUM_VERSION as electrum_version
  35 from electrum.util import format_satoshis, age
  36 import gui_classic
  37 import shutil
  38
  39 from qt_util import *
  40
  41 bitcoin = lambda v: v * 100000000
  42
  43 def IconButton(filename, parent=None):
  44     pixmap = QPixmap(filename)
  45     icon = QIcon(pixmap)
  46     return QPushButton(icon, "", parent)
  47
  48 class Timer(QThread):
  49     def run(self):
  50         while True:
  51             self.emit(SIGNAL('timersignal'))
  52             time.sleep(0.5)
  53
  54 def resize_line_edit_width(line_edit, text_input):
  55     metrics = QFontMetrics(qApp.font())
  56     # Create an extra character to add some space on the end
  57     text_input += "A"
  58     line_edit.setMinimumWidth(metrics.width(text_input))
  59
  60 def load_theme_name(theme_path):
  61     try:
  62         with open(os.path.join(theme_path, "name.cfg")) as name_cfg_file:
  63             return name_cfg_file.read().rstrip("\n").strip()
  64     except IOError:
  65         return None
  66
  67
  68 def theme_dirs_from_prefix(prefix):
  69     if not os.path.exists(prefix):
  70         return []
  71     theme_paths = {}
  72     for potential_theme in os.listdir(prefix):
  73         theme_full_path = os.path.join(prefix, potential_theme)
  74         theme_css = os.path.join(theme_full_path, "style.css")
  75         if not os.path.exists(theme_css):
  76             continue
  77         theme_name = load_theme_name(theme_full_path)
  78         if theme_name is None:
  79             continue
  80         theme_paths[theme_name] = prefix, potential_theme
  81     return theme_paths
  82
  83 def load_theme_paths():
  84     theme_paths = {}
  85     prefixes = (util.local_data_dir(), util.appdata_dir())
  86     for prefix in prefixes:
  87         theme_paths.update(theme_dirs_from_prefix(prefix))
  88     return theme_paths
  89
  90
  91 def csv_transaction(wallet):
  92     try:
  93         select_export = _('Select file to export your wallet transactions to')
  94         fileName = QFileDialog.getSaveFileName(QWidget(), select_export, os.path.expanduser('~/electrum-history.csv'), "*.csv")
  95         if fileName:
  96             with open(fileName, "w+") as csvfile:
  97                 transaction = csv.writer(csvfile)
  98                 transaction.writerow(["transaction_hash","label", "confirmations", "value", "fee", "balance", "timestamp"])
  99                 for item in wallet.get_tx_history():
 100                     tx_hash, confirmations, is_mine, value, fee, balance, timestamp = item
 101                     if confirmations:
 102                         if timestamp is not None:
 103                             try:
 104                                 time_string = datetime.datetime.fromtimestamp(timestamp).isoformat(' ')[:-3]
 105                             except [RuntimeError, TypeError, NameError] as reason:
 106                                 time_string = "unknown"
 107                                 pass
 108                         else:
 109                           time_string = "unknown"
 110                     else:
 111                         time_string = "pending"
 112
 113                     if value is not None:
 114                         value_string = format_satoshis(value, True, wallet.num_zeros)
 115                     else:
 116                         value_string = '--'
 117
 118                     if fee is not None:
 119                         fee_string = format_satoshis(fee, True, wallet.num_zeros)
 120                     else:
 121                         fee_string = '0'
 122
 123                     if tx_hash:
 124                         label, is_default_label = wallet.get_label(tx_hash)
 125                     else:
 126                       label = ""
 127
 128                     balance_string = format_satoshis(balance, False, wallet.num_zeros)
 129                     transaction.writerow([tx_hash, label, confirmations, value_string, fee_string, balance_string, time_string])
 130                 QMessageBox.information(None,"CSV Export created", "Your CSV export has been successfully created.")
 131     except (IOError, os.error), reason:
 132         export_error_label = _("Electrum was unable to produce a transaction export.")
 133         QMessageBox.critical(None,"Unable to create csv", export_error_label + "\n" + str(reason))
 134
 135
 136 class ElectrumGui(QObject):
 137
 138     def __init__(self, config, interface, blockchain, expert=None):
 139         super(QObject, self).__init__()
 140
 141         self.config = config
 142         self.check_qt_version()
 143         self.expert = expert
 144         self.interface = interface
 145         self.blockchain = blockchain
 146
 147
 148
 149
 150     def check_qt_version(self):
 151         qtVersion = qVersion()
 152         if not(int(qtVersion[0]) >= 4 and int(qtVersion[2]) >= 7):
 153             app = QApplication(sys.argv)
 154             QMessageBox.warning(None,"Could not start Lite GUI.", "Electrum was unable to load the 'Lite GUI' because it needs Qt version >= 4.7.\nChanging your config to use the 'Classic' GUI")
 155             self.config.set_key('gui','classic',True)
 156             sys.exit(0)
 157
 158
 159     def main(self, url):
 160
 161         if self.expert is None:
 162             self.app = QApplication(sys.argv)
 163             storage = WalletStorage(self.config)
 164             if not storage.file_exists:
 165                 exit()
 166             self.wallet = Wallet(storage)
 167             self.wallet.start_threads(self.interface, self.blockchain)
 168         else:
 169             self.app = self.expert.app
 170             self.wallet = self.expert.wallet
 171
 172         actuator = MiniActuator(self.config, self.wallet)
 173         # Should probably not modify the current path but instead
 174         # change the behaviour of rsrc(...)
 175         old_path = QDir.currentPath()
 176         actuator.load_theme()
 177
 178         self.mini = MiniWindow(actuator, self.expand, self.config)
 179         driver = MiniDriver(self.wallet, self.mini)
 180
 181         # Reset path back to original value now that loading the GUI
 182         # is completed.
 183         QDir.setCurrent(old_path)
 184
 185         if url:
 186             self.set_url(url)
 187
 188         if self.expert is None:
 189             self.expert = gui_classic.ElectrumWindow(self.config)
 190             self.expert.load_wallet(self.wallet)
 191             self.expert.app = self.app
 192             timer = Timer()
 193             timer.start()
 194             self.expert.connect_slots(timer)
 195             self.expert.update_wallet()
 196
 197             self.app.exec_()
 198
 199
 200     def expand(self):
 201         """Hide the lite mode window and show pro-mode."""
 202         self.config.set_key('gui', 'classic', True)
 203         self.mini.hide()
 204         self.expert.show()
 205
 206     def set_url(self, url):
 207         payto, amount, label, message, signature, identity, url = \
 208             self.wallet.parse_url(url, self.show_message, self.show_question)
 209         self.mini.set_payment_fields(payto, amount)
 210
 211     def show_message(self, message):
 212         QMessageBox.information(self.mini, _("Message"), message, _("OK"))
 213
 214     def show_question(self, message):
 215         choice = QMessageBox.question(self.mini, _("Message"), message,
 216                                       QMessageBox.Yes|QMessageBox.No,
 217                                       QMessageBox.No)
 218         return choice == QMessageBox.Yes
 219
 220     def restore_or_create(self):
 221         qt_gui_object = gui_classic.ElectrumGui(self.wallet, self.app)
 222         return qt_gui_object.restore_or_create()
 223
 224 class TransactionWindow(QDialog):
 225
 226     def set_label(self):
 227         label = unicode(self.label_edit.text())
 228         self.parent.wallet.labels[self.tx_id] = label
 229
 230         super(TransactionWindow, self).accept()
 231
 232     def __init__(self, transaction_id, parent):
 233         super(TransactionWindow, self).__init__()
 234
 235         self.tx_id = str(transaction_id)
 236         self.parent = parent
 237
 238         self.setModal(True)
 239         self.resize(200,100)
 240         self.setWindowTitle(_("Transaction successfully sent"))
 241
 242         self.layout = QGridLayout(self)
 243         history_label = "%s\n%s" % (_("Your transaction has been sent."), _("Please enter a label for this transaction for future reference."))
 244         self.layout.addWidget(QLabel(history_label))
 245
 246         self.label_edit = QLineEdit()
 247         self.label_edit.setPlaceholderText(_("Transaction label"))
 248         self.label_edit.setObjectName("label_input")
 249         self.label_edit.setAttribute(Qt.WA_MacShowFocusRect, 0)
 250         self.label_edit.setFocusPolicy(Qt.ClickFocus)
 251         self.layout.addWidget(self.label_edit)
 252
 253         self.save_button = QPushButton(_("Save"))
 254         self.layout.addWidget(self.save_button)
 255         self.save_button.clicked.connect(self.set_label)
 256
 257         self.exec_()
 258
 259 class MiniWindow(QDialog):
 260
 261     def __init__(self, actuator, expand_callback, config):
 262         super(MiniWindow, self).__init__()
 263         tx = "e08115d0f7819aee65b9d24f81ef9d46eb62bb67ddef5318156cbc3ceb7b703e"
 264
 265         self.actuator = actuator
 266         self.config = config
 267         self.btc_balance = None
 268         self.quote_currencies = ["BRL", "CNY", "EUR", "GBP", "RUB", "USD"]
 269         self.actuator.set_configured_currency(self.set_quote_currency)
 270         self.exchanger = exchange_rate.Exchanger(self)
 271         # Needed because price discovery is done in a different thread
 272         # which needs to be sent back to this main one to update the GUI
 273         self.connect(self, SIGNAL("refresh_balance()"), self.refresh_balance)
 274
 275         self.balance_label = BalanceLabel(self.change_quote_currency)
 276         self.balance_label.setObjectName("balance_label")
 277
 278
 279         # Bitcoin address code
 280         self.address_input = QLineEdit()
 281         self.address_input.setPlaceholderText(_("Enter a Bitcoin address or contact"))
 282         self.address_input.setObjectName("address_input")
 283
 284         self.address_input.setFocusPolicy(Qt.ClickFocus)
 285
 286         self.address_input.textChanged.connect(self.address_field_changed)
 287         resize_line_edit_width(self.address_input,
 288                                "1BtaFUr3qVvAmwrsuDuu5zk6e4s2rxd2Gy")
 289
 290         self.address_completions = QStringListModel()
 291         address_completer = QCompleter(self.address_input)
 292         address_completer.setCaseSensitivity(False)
 293         address_completer.setModel(self.address_completions)
 294         self.address_input.setCompleter(address_completer)
 295
 296         address_layout = QHBoxLayout()
 297         address_layout.addWidget(self.address_input)
 298
 299         self.amount_input = QLineEdit()
 300         self.amount_input.setPlaceholderText(_("... and amount"))
 301         self.amount_input.setObjectName("amount_input")
 302
 303         self.amount_input.setFocusPolicy(Qt.ClickFocus)
 304         # This is changed according to the user's displayed balance
 305         self.amount_validator = QDoubleValidator(self.amount_input)
 306         self.amount_validator.setNotation(QDoubleValidator.StandardNotation)
 307         self.amount_validator.setDecimals(8)
 308         self.amount_input.setValidator(self.amount_validator)
 309
 310         # This removes the very ugly OSX highlighting, please leave this in :D
 311         self.address_input.setAttribute(Qt.WA_MacShowFocusRect, 0)
 312         self.amount_input.setAttribute(Qt.WA_MacShowFocusRect, 0)
 313         self.amount_input.textChanged.connect(self.amount_input_changed)
 314
 315         if self.actuator.wallet.seed:
 316             self.send_button = QPushButton(_("&Send"))
 317         else:
 318             self.send_button = QPushButton(_("&Create"))
 319
 320         self.send_button.setObjectName("send_button")
 321         self.send_button.setDisabled(True);
 322         self.send_button.clicked.connect(self.send)
 323
 324         # Creating the receive button
 325         self.switch_button = QPushButton( QIcon(":icons/switchgui.png"),'' )
 326         self.switch_button.setMaximumWidth(25)
 327         self.switch_button.setFlat(True)
 328         self.switch_button.clicked.connect(expand_callback)
 329
 330         main_layout = QGridLayout(self)
 331
 332         main_layout.addWidget(self.balance_label, 0, 0, 1, 3)
 333         main_layout.addWidget(self.switch_button, 0, 3)
 334
 335         main_layout.addWidget(self.address_input, 1, 0, 1, 4)
 336         main_layout.addWidget(self.amount_input, 2, 0, 1, 2)
 337         main_layout.addWidget(self.send_button, 2, 2, 1, 2)
 338
 339         self.send_button.setMaximumWidth(125)
 340
 341         self.history_list = history_widget.HistoryWidget()
 342         self.history_list.setObjectName("history")
 343         self.history_list.hide()
 344         self.history_list.setAlternatingRowColors(True)
 345
 346         main_layout.addWidget(self.history_list, 3, 0, 1, 4)
 347
 348         self.receiving = receiving_widget.ReceivingWidget(self)
 349         self.receiving.setObjectName("receiving")
 350
 351         # Add to the right side
 352         self.receiving_box = QGroupBox(_("Select a receiving address"))
 353         extra_layout = QGridLayout()
 354
 355         # Checkbox to filter used addresses
 356         hide_used = QCheckBox(_('Hide used addresses'))
 357         hide_used.setChecked(True)
 358         hide_used.stateChanged.connect(self.receiving.toggle_used)
 359
 360         # Events for receiving addresses
 361         self.receiving.clicked.connect(self.receiving.copy_address)
 362         self.receiving.itemDoubleClicked.connect(self.receiving.edit_label)
 363         self.receiving.itemChanged.connect(self.receiving.update_label)
 364
 365
 366         # Label
 367         extra_layout.addWidget( QLabel(_('Selecting an address will copy it to the clipboard.') + '\n' + _('Double clicking the label will allow you to edit it.') ),0,0)
 368
 369         extra_layout.addWidget(self.receiving, 1,0)
 370         extra_layout.addWidget(hide_used, 2,0)
 371         extra_layout.setColumnMinimumWidth(0,200)
 372
 373         self.receiving_box.setLayout(extra_layout)
 374         main_layout.addWidget(self.receiving_box,0,4,-1,3)
 375         self.receiving_box.hide()
 376
 377         # Creating the menu bar
 378         menubar = QMenuBar()
 379         electrum_menu = menubar.addMenu(_("&Electrum"))
 380
 381         quit_option = electrum_menu.addAction(_("&Close"))
 382
 383         quit_option.triggered.connect(self.close)
 384
 385         view_menu = menubar.addMenu(_("&View"))
 386         extra_menu = menubar.addMenu(_("&Extra"))
 387
 388         backup_wallet_menu = extra_menu.addAction( _("&Create wallet backup"))
 389         backup_wallet_menu.triggered.connect(lambda: backup_wallet(self.config.path))
 390
 391         export_csv = extra_menu.addAction( _("&Export transactions to CSV") )
 392         export_csv.triggered.connect(lambda: csv_transaction(self.actuator.wallet))
 393
 394         master_key = extra_menu.addAction( _("Copy master public key to clipboard") )
 395         master_key.triggered.connect(self.actuator.copy_master_public_key)
 396
 397         expert_gui = view_menu.addAction(_("&Classic GUI"))
 398         expert_gui.triggered.connect(expand_callback)
 399         themes_menu = view_menu.addMenu(_("&Themes"))
 400         selected_theme = self.actuator.selected_theme()
 401         theme_group = QActionGroup(self)
 402         for theme_name in self.actuator.theme_names():
 403             theme_action = themes_menu.addAction(theme_name)
 404             theme_action.setCheckable(True)
 405             if selected_theme == theme_name:
 406                 theme_action.setChecked(True)
 407             class SelectThemeFunctor:
 408                 def __init__(self, theme_name, toggle_theme):
 409                     self.theme_name = theme_name
 410                     self.toggle_theme = toggle_theme
 411                 def __call__(self, checked):
 412                     if checked:
 413                         self.toggle_theme(self.theme_name)
 414             delegate = SelectThemeFunctor(theme_name, self.toggle_theme)
 415             theme_action.toggled.connect(delegate)
 416             theme_group.addAction(theme_action)
 417         view_menu.addSeparator()
 418
 419         show_receiving = view_menu.addAction(_("Show Receiving addresses"))
 420         show_receiving.setCheckable(True)
 421         show_receiving.toggled.connect(self.toggle_receiving_layout)
 422
 423         show_receiving_toggle = self.config.get("gui_show_receiving",False)
 424         show_receiving.setChecked(show_receiving_toggle)
 425         self.show_receiving = show_receiving
 426
 427         self.toggle_receiving_layout(show_receiving_toggle)
 428
 429
 430         show_history = view_menu.addAction(_("Show History"))
 431         show_history.setCheckable(True)
 432         show_history.toggled.connect(self.show_history)
 433
 434         help_menu = menubar.addMenu(_("&Help"))
 435         the_website = help_menu.addAction(_("&Website"))
 436         the_website.triggered.connect(self.the_website)
 437         help_menu.addSeparator()
 438         report_bug = help_menu.addAction(_("&Report Bug"))
 439         report_bug.triggered.connect(self.show_report_bug)
 440         show_about = help_menu.addAction(_("&About"))
 441         show_about.triggered.connect(self.show_about)
 442         main_layout.setMenuBar(menubar)
 443         self.main_layout = main_layout
 444
 445         quit_shortcut = QShortcut(QKeySequence("Ctrl+Q"), self)
 446         quit_shortcut.activated.connect(self.close)
 447         close_shortcut = QShortcut(QKeySequence("Ctrl+W"), self)
 448         close_shortcut.activated.connect(self.close)
 449
 450         g = self.config.get("winpos-lite",[4, 25, 351, 149])
 451         self.setGeometry(g[0], g[1], g[2], g[3])
 452
 453         show_hist = self.config.get("gui_show_history",False)
 454         show_history.setChecked(show_hist)
 455         self.show_history(show_hist)
 456
 457         self.setWindowIcon(QIcon(":icons/electrum.png"))
 458         self.setWindowTitle("Electrum")
 459         self.setWindowFlags(Qt.Window|Qt.MSWindowsFixedSizeDialogHint)
 460         self.layout().setSizeConstraint(QLayout.SetFixedSize)
 461         self.setObjectName("main_window")
 462         self.show()
 463
 464
 465     def toggle_theme(self, theme_name):
 466         old_path = QDir.currentPath()
 467         self.actuator.change_theme(theme_name)
 468         # Recompute style globally
 469         qApp.style().unpolish(self)
 470         qApp.style().polish(self)
 471         QDir.setCurrent(old_path)
 472
 473     def closeEvent(self, event):
 474         g = self.geometry()
 475         self.config.set_key("winpos-lite", [g.left(),g.top(),g.width(),g.height()],True)
 476         self.config.set_key("gui_show_history", self.history_list.isVisible(),True)
 477         self.config.set_key("gui_show_receiving", self.receiving_box.isVisible(),True)
 478
 479         super(MiniWindow, self).closeEvent(event)
 480         qApp.quit()
 481
 482     def set_payment_fields(self, dest_address, amount):
 483         self.address_input.setText(dest_address)
 484         self.address_field_changed(dest_address)
 485         self.amount_input.setText(amount)
 486
 487     def activate(self):
 488         pass
 489
 490     def deactivate(self):
 491         pass
 492
 493     def set_quote_currency(self, currency):
 494         """Set and display the fiat currency country."""
 495         if currency not in self.quote_currencies:
 496             return
 497         self.quote_currencies.remove(currency)
 498         self.quote_currencies.insert(0, currency)
 499         self.refresh_balance()
 500
 501     def change_quote_currency(self, forward=True):
 502         if forward:
 503             self.quote_currencies = \
 504                 self.quote_currencies[1:] + self.quote_currencies[0:1]
 505         else:
 506             self.quote_currencies = \
 507                 self.quote_currencies[-1:] + self.quote_currencies[0:-1]
 508         self.actuator.set_config_currency(self.quote_currencies[0])
 509         self.refresh_balance()
 510
 511     def refresh_balance(self):
 512         if self.btc_balance is None:
 513             # Price has been discovered before wallet has been loaded
 514             # and server connect... so bail.
 515             return
 516         self.set_balances(self.btc_balance)
 517         self.amount_input_changed(self.amount_input.text())
 518
 519     def set_balances(self, btc_balance):
 520         """Set the bitcoin balance and update the amount label accordingly."""
 521         self.btc_balance = btc_balance
 522         quote_text = self.create_quote_text(btc_balance)
 523         if quote_text:
 524             quote_text = "(%s)" % quote_text
 525         btc_balance = "%.4f" % (btc_balance / bitcoin(1))
 526         self.balance_label.set_balance_text(btc_balance, quote_text)
 527         self.setWindowTitle("Electrum %s - %s BTC" % (electrum_version, btc_balance))
 528
 529     def amount_input_changed(self, amount_text):
 530         """Update the number of bitcoins displayed."""
 531         self.check_button_status()
 532
 533         try:
 534             amount = D(str(amount_text))
 535         except decimal.InvalidOperation:
 536             self.balance_label.show_balance()
 537         else:
 538             quote_text = self.create_quote_text(amount * bitcoin(1))
 539             if quote_text:
 540                 self.balance_label.set_amount_text(quote_text)
 541                 self.balance_label.show_amount()
 542             else:
 543                 self.balance_label.show_balance()
 544
 545     def create_quote_text(self, btc_balance):
 546         """Return a string copy of the amount fiat currency the
 547         user has in bitcoins."""
 548         quote_currency = self.quote_currencies[0]
 549         quote_balance = self.exchanger.exchange(btc_balance, quote_currency)
 550         if quote_balance is None:
 551             quote_text = ""
 552         else:
 553             quote_text = "%.2f %s" % ((quote_balance / bitcoin(1)),
 554                                       quote_currency)
 555         return quote_text
 556
 557     def send(self):
 558         if self.actuator.send(self.address_input.text(),
 559                               self.amount_input.text(), self):
 560             self.address_input.setText("")
 561             self.amount_input.setText("")
 562
 563     def check_button_status(self):
 564         """Check that the bitcoin address is valid and that something
 565         is entered in the amount before making the send button clickable."""
 566         try:
 567             value = D(str(self.amount_input.text())) * 10**8
 568         except decimal.InvalidOperation:
 569             value = None
 570         # self.address_input.property(...) returns a qVariant, not a bool.
 571         # The == is needed to properly invoke a comparison.
 572         if (self.address_input.property("isValid") == True and
 573             value is not None and 0 < value <= self.btc_balance):
 574             self.send_button.setDisabled(False)
 575         else:
 576             self.send_button.setDisabled(True)
 577
 578     def address_field_changed(self, address):
 579         # label or alias, with address in brackets
 580         match2 = re.match("(.*?)\s*\<([1-9A-HJ-NP-Za-km-z]{26,})\>",
 581                           address)
 582         if match2:
 583           address = match2.group(2)
 584           self.address_input.setText(address)
 585
 586         if is_valid(address):
 587             self.check_button_status()
 588             self.address_input.setProperty("isValid", True)
 589             self.recompute_style(self.address_input)
 590         else:
 591             self.send_button.setDisabled(True)
 592             self.address_input.setProperty("isValid", False)
 593             self.recompute_style(self.address_input)
 594
 595         if len(address) == 0:
 596             self.address_input.setProperty("isValid", None)
 597             self.recompute_style(self.address_input)
 598
 599     def recompute_style(self, element):
 600         self.style().unpolish(element)
 601         self.style().polish(element)
 602
 603     def copy_address(self):
 604         receive_popup = ReceivePopup(self.receive_button)
 605         self.actuator.copy_address(receive_popup)
 606
 607     def update_completions(self, completions):
 608         self.address_completions.setStringList(completions)
 609
 610
 611     def update_history(self, tx_history):
 612
 613         self.history_list.empty()
 614
 615         for item in tx_history[-10:]:
 616             tx_hash, conf, is_mine, value, fee, balance, timestamp = item
 617             label = self.actuator.wallet.get_label(tx_hash)[0]
 618             #amount = D(value) / 10**8
 619             v_str = format_satoshis(value, True)
 620             self.history_list.append(label, v_str, age(timestamp))
 621
 622     def acceptbit(self):
 623         self.actuator.acceptbit(self.quote_currencies[0])
 624
 625     def the_website(self):
 626         webbrowser.open("http://electrum.org")
 627
 628     def show_about(self):
 629         QMessageBox.about(self, "Electrum",
 630             _("Version")+" %s" % (electrum_version) + "\n\n" + _("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 conjunction with high-performance servers that handle the most complicated parts of the Bitcoin system."))
 631
 632     def show_report_bug(self):
 633         QMessageBox.information(self, "Electrum - " + _("Reporting Bugs"),
 634             _("Please report any bugs as issues on github:")+" <a href=\"https://github.com/spesmilo/electrum/issues\">https://github.com/spesmilo/electrum/issues</a>")
 635
 636     def toggle_receiving_layout(self, toggle_state):
 637         if toggle_state:
 638           self.receiving_box.show()
 639         else:
 640           self.receiving_box.hide()
 641
 642     def show_history(self, toggle_state):
 643         if toggle_state:
 644             self.main_layout.setRowMinimumHeight(3,200)
 645             self.history_list.show()
 646         else:
 647             self.main_layout.setRowMinimumHeight(3,0)
 648             self.history_list.hide()
 649
 650 class BalanceLabel(QLabel):
 651
 652     SHOW_CONNECTING = 1
 653     SHOW_BALANCE = 2
 654     SHOW_AMOUNT = 3
 655
 656     def __init__(self, change_quote_currency, parent=None):
 657         super(QLabel, self).__init__(_("Connecting..."), parent)
 658         self.change_quote_currency = change_quote_currency
 659         self.state = self.SHOW_CONNECTING
 660         self.balance_text = ""
 661         self.amount_text = ""
 662
 663     def mousePressEvent(self, event):
 664         """Change the fiat currency selection if window background is clicked."""
 665         if self.state != self.SHOW_CONNECTING:
 666             self.change_quote_currency(event.button() == Qt.LeftButton)
 667
 668     def set_balance_text(self, btc_balance, quote_text):
 669         """Set the amount of bitcoins in the gui."""
 670         if self.state == self.SHOW_CONNECTING:
 671             self.state = self.SHOW_BALANCE
 672         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)
 673         if self.state == self.SHOW_BALANCE:
 674             self.setText(self.balance_text)
 675
 676     def set_amount_text(self, quote_text):
 677         self.amount_text = "<span style='font-size: 10pt'>%s</span>" % quote_text
 678         if self.state == self.SHOW_AMOUNT:
 679             self.setText(self.amount_text)
 680
 681     def show_balance(self):
 682         if self.state == self.SHOW_AMOUNT:
 683             self.state = self.SHOW_BALANCE
 684             self.setText(self.balance_text)
 685
 686     def show_amount(self):
 687         if self.state == self.SHOW_BALANCE:
 688             self.state = self.SHOW_AMOUNT
 689             self.setText(self.amount_text)
 690
 691 def ok_cancel_buttons(dialog):
 692     row_layout = QHBoxLayout()
 693     row_layout.addStretch(1)
 694     ok_button = QPushButton(_("OK"))
 695     row_layout.addWidget(ok_button)
 696     ok_button.clicked.connect(dialog.accept)
 697     cancel_button = QPushButton(_("Cancel"))
 698     row_layout.addWidget(cancel_button)
 699     cancel_button.clicked.connect(dialog.reject)
 700     return row_layout
 701
 702 class PasswordDialog(QDialog):
 703
 704     def __init__(self, parent):
 705         super(QDialog, self).__init__(parent)
 706
 707         self.setModal(True)
 708
 709         self.password_input = QLineEdit()
 710         self.password_input.setEchoMode(QLineEdit.Password)
 711
 712         main_layout = QVBoxLayout(self)
 713         message = _('Please enter your password')
 714         main_layout.addWidget(QLabel(message))
 715
 716         grid = QGridLayout()
 717         grid.setSpacing(8)
 718         grid.addWidget(QLabel(_('Password')), 1, 0)
 719         grid.addWidget(self.password_input, 1, 1)
 720         main_layout.addLayout(grid)
 721
 722         main_layout.addLayout(ok_cancel_buttons(self))
 723         self.setLayout(main_layout)
 724
 725     def run(self):
 726         if not self.exec_():
 727             return
 728         return unicode(self.password_input.text())
 729
 730 class ReceivePopup(QDialog):
 731
 732     def leaveEvent(self, event):
 733         self.close()
 734
 735     def setup(self, address):
 736         label = QLabel(_("Copied your Bitcoin address to the clipboard!"))
 737         address_display = QLineEdit(address)
 738         address_display.setReadOnly(True)
 739         resize_line_edit_width(address_display, address)
 740
 741         main_layout = QVBoxLayout(self)
 742         main_layout.addWidget(label)
 743         main_layout.addWidget(address_display)
 744
 745         self.setMouseTracking(True)
 746         self.setWindowTitle("Electrum - " + _("Receive Bitcoin payment"))
 747         self.setWindowFlags(Qt.Window|Qt.FramelessWindowHint|
 748                             Qt.MSWindowsFixedSizeDialogHint)
 749         self.layout().setSizeConstraint(QLayout.SetFixedSize)
 750         #self.setFrameStyle(QFrame.WinPanel|QFrame.Raised)
 751         #self.setAlignment(Qt.AlignCenter)
 752
 753     def popup(self):
 754         parent = self.parent()
 755         top_left_pos = parent.mapToGlobal(parent.rect().bottomLeft())
 756         self.move(top_left_pos)
 757         center_mouse_pos = self.mapToGlobal(self.rect().center())
 758         QCursor.setPos(center_mouse_pos)
 759         self.show()
 760
 761 class MiniActuator:
 762     """Initialize the definitions relating to themes and
 763     sending/receiving bitcoins."""
 764
 765
 766     def __init__(self, config, wallet):
 767         """Retrieve the gui theme used in previous session."""
 768         self.config = config
 769         self.wallet = wallet
 770         self.theme_name = self.config.get('litegui_theme','Cleanlook')
 771         self.themes = load_theme_paths()
 772
 773     def load_theme(self):
 774         """Load theme retrieved from wallet file."""
 775         try:
 776             theme_prefix, theme_path = self.themes[self.theme_name]
 777         except KeyError:
 778             util.print_error("Theme not found!", self.theme_name)
 779             return
 780         QDir.setCurrent(os.path.join(theme_prefix, theme_path))
 781         with open(rsrc("style.css")) as style_file:
 782             qApp.setStyleSheet(style_file.read())
 783
 784     def theme_names(self):
 785         """Sort themes."""
 786         return sorted(self.themes.keys())
 787
 788     def selected_theme(self):
 789         """Select theme."""
 790         return self.theme_name
 791
 792     def change_theme(self, theme_name):
 793         """Change theme."""
 794         self.theme_name = theme_name
 795         self.config.set_key('litegui_theme',theme_name)
 796         self.load_theme()
 797
 798     def set_configured_currency(self, set_quote_currency):
 799         """Set the inital fiat currency conversion country (USD/EUR/GBP) in
 800         the GUI to what it was set to in the wallet."""
 801         currency = self.config.get('currency')
 802         # currency can be none when Electrum is used for the first
 803         # time and no setting has been created yet.
 804         if currency is not None:
 805             set_quote_currency(currency)
 806
 807     def set_config_currency(self, conversion_currency):
 808         """Change the wallet fiat currency country."""
 809         self.config.set_key('conversion_currency',conversion_currency,True)
 810
 811     def copy_address(self, receive_popup):
 812         """Copy the wallet addresses into the client."""
 813         addrs = [addr for addr in self.wallet.addresses(True)
 814                  if not self.wallet.is_change(addr)]
 815         # Select most recent addresses from gap limit
 816         addrs = addrs[-self.wallet.gap_limit:]
 817         copied_address = random.choice(addrs)
 818         qApp.clipboard().setText(copied_address)
 819         receive_popup.setup(copied_address)
 820         receive_popup.popup()
 821
 822     def waiting_dialog(self, f):
 823         s = Timer()
 824         s.start()
 825         w = QDialog()
 826         w.resize(200, 70)
 827         w.setWindowTitle('Electrum')
 828         l = QLabel('Sending transaction, please wait.')
 829         vbox = QVBoxLayout()
 830         vbox.addWidget(l)
 831         w.setLayout(vbox)
 832         w.show()
 833         def ff():
 834             s = f()
 835             if s: l.setText(s)
 836             else: w.close()
 837         w.connect(s, QtCore.SIGNAL('timersignal'), ff)
 838         w.exec_()
 839         w.destroy()
 840
 841
 842     def send(self, address, amount, parent_window):
 843         """Send bitcoins to the target address."""
 844         dest_address = self.fetch_destination(address)
 845
 846         if dest_address is None or not is_valid(dest_address):
 847             QMessageBox.warning(parent_window, _('Error'),
 848                 _('Invalid Bitcoin Address') + ':\n' + address, _('OK'))
 849             return False
 850
 851         convert_amount = lambda amount: \
 852             int(D(unicode(amount)) * bitcoin(1))
 853         amount = convert_amount(amount)
 854
 855         if self.wallet.use_encryption:
 856             password_dialog = PasswordDialog(parent_window)
 857             password = password_dialog.run()
 858             if not password:
 859                 return
 860         else:
 861             password = None
 862
 863         fee = 0
 864         # 0.1 BTC = 10000000
 865         if amount < bitcoin(1) / 10:
 866             # 0.001 BTC
 867             fee = bitcoin(1) / 1000
 868
 869         try:
 870             tx = self.wallet.mktx([(dest_address, amount)], password, fee)
 871         except BaseException as error:
 872             QMessageBox.warning(parent_window, _('Error'), str(error), _('OK'))
 873             return False
 874
 875         if tx.is_complete:
 876             h = self.wallet.send_tx(tx)
 877
 878             self.waiting_dialog(lambda: False if self.wallet.tx_event.isSet() else _("Sending transaction, please wait..."))
 879
 880             status, message = self.wallet.receive_tx(h)
 881
 882             if not status:
 883                 import tempfile
 884                 dumpf = tempfile.NamedTemporaryFile(delete=False)
 885                 dumpf.write(tx)
 886                 dumpf.close()
 887                 print "Dumped error tx to", dumpf.name
 888                 QMessageBox.warning(parent_window, _('Error'), message, _('OK'))
 889                 return False
 890
 891             TransactionWindow(message, self)
 892         else:
 893             filename = 'unsigned_tx_%s' % (time.mktime(time.gmtime()))
 894             try:
 895                 fileName = QFileDialog.getSaveFileName(QWidget(), _("Select a transaction filename"), os.path.expanduser('~/%s' % (filename)))
 896                 with open(fileName,'w') as f:
 897                     f.write(json.dumps(tx.as_dict(),indent=4) + '\n')
 898                 QMessageBox.information(QWidget(), _('Unsigned transaction created'), _("Unsigned transaction was saved to file:") + " " +fileName, _('OK'))
 899             except BaseException as e:
 900                 QMessageBox.warning(QWidget(), _('Error'), _('Could not write transaction to file: %s' % e), _('OK'))
 901         return True
 902
 903     def fetch_destination(self, address):
 904         recipient = unicode(address).strip()
 905
 906         # alias
 907         match1 = re.match("^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$",
 908                           recipient)
 909
 910         # label or alias, with address in brackets
 911         match2 = re.match("(.*?)\s*\<([1-9A-HJ-NP-Za-km-z]{26,})\>",
 912                           recipient)
 913
 914         if match1:
 915             dest_address = \
 916                 self.wallet.get_alias(recipient, True,
 917                                       self.show_message, self.question)
 918             return dest_address
 919         elif match2:
 920             return match2.group(2)
 921         else:
 922             return recipient
 923
 924
 925     def copy_master_public_key(self):
 926         master_pubkey = self.wallet.get_master_public_key()
 927         qApp.clipboard().setText(master_pubkey)
 928         QMessageBox.information(None, _("Copy successful"), _("Your master public key has been copied to your clipboard."))
 929
 930
 931     def acceptbit(self, currency):
 932         master_pubkey = self.wallet.master_public_key
 933         url = "http://acceptbit.com/mpk/%s/%s" % (master_pubkey, currency)
 934         webbrowser.open(url)
 935
 936     def show_seed_dialog(self):
 937         gui_classic.ElectrumWindow.show_seed_dialog(self.wallet)
 938
 939 class MiniDriver(QObject):
 940
 941     INITIALIZING = 0
 942     CONNECTING = 1
 943     SYNCHRONIZING = 2
 944     READY = 3
 945
 946     def __init__(self, wallet, window):
 947         super(QObject, self).__init__()
 948
 949         self.wallet = wallet
 950         self.window = window
 951
 952         self.wallet.interface.register_callback('updated',self.update_callback)
 953         self.wallet.interface.register_callback('connected', self.update_callback)
 954         self.wallet.interface.register_callback('disconnected', self.update_callback)
 955
 956         self.state = None
 957
 958         self.initializing()
 959         self.connect(self, SIGNAL("updatesignal()"), self.update)
 960         self.update_callback()
 961
 962     # This is a hack to workaround that Qt does not like changing the
 963     # window properties from this other thread before the runloop has
 964     # been called from.
 965     def update_callback(self):
 966         self.emit(SIGNAL("updatesignal()"))
 967
 968     def update(self):
 969         if not self.wallet.interface:
 970             self.initializing()
 971         elif not self.wallet.interface.is_connected:
 972             self.connecting()
 973         elif not self.wallet.up_to_date:
 974             self.synchronizing()
 975         else:
 976             self.ready()
 977
 978         if self.wallet.up_to_date:
 979             self.update_balance()
 980             self.update_completions()
 981             self.update_history()
 982
 983     def initializing(self):
 984         if self.state == self.INITIALIZING:
 985             return
 986         self.state = self.INITIALIZING
 987         self.window.deactivate()
 988
 989     def connecting(self):
 990         if self.state == self.CONNECTING:
 991             return
 992         self.state = self.CONNECTING
 993         self.window.deactivate()
 994
 995     def synchronizing(self):
 996         if self.state == self.SYNCHRONIZING:
 997             return
 998         self.state = self.SYNCHRONIZING
 999         self.window.deactivate()
1000
1001     def ready(self):
1002         if self.state == self.READY:
1003             return
1004         self.state = self.READY
1005         self.window.activate()
1006
1007     def update_balance(self):
1008         conf_balance, unconf_balance = self.wallet.get_balance()
1009         balance = D(conf_balance + unconf_balance)
1010         self.window.set_balances(balance)
1011
1012     def update_completions(self):
1013         completions = []
1014         for addr, label in self.wallet.labels.items():
1015             if addr in self.wallet.addressbook:
1016                 completions.append("%s <%s>" % (label, addr))
1017         self.window.update_completions(completions)
1018
1019     def update_history(self):
1020         tx_history = self.wallet.get_tx_history()
1021         self.window.update_history(tx_history)
1022
1023
1024 if __name__ == "__main__":
1025     app = QApplication(sys.argv)
1026     with open(rsrc("style.css")) as style_file:
1027         app.setStyleSheet(style_file.read())
1028     mini = MiniWindow()
1029     sys.exit(app.exec_())
1030