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     import PyQt4.QtCore as QtCore
   8
   9 except ImportError:
  10     print "You need to have PyQT installed to run Electrum in graphical mode."
  11     print "If you have pip installed try 'sudo pip install pyqt' if you are on Debian/Ubuntu try 'sudo apt-get install python-qt4'."
  12     sys.exit(0)
  13
  14 from decimal import Decimal as D
  15 from electrum.util import get_resource_path as rsrc
  16 from electrum.bitcoin import is_valid
  17 from i18n import _
  18 import decimal
  19 import exchange_rate
  20 import json
  21 import os.path
  22 import random
  23 import re
  24 import time
  25 from electrum import wallet
  26 import webbrowser
  27 import history_widget
  28 import receiving_widget
  29 from electrum import util
  30 import csv
  31 import datetime
  32
  33 from electrum.version import ELECTRUM_VERSION as electrum_version
  34 from electrum.util import format_satoshis, age
  35 import gui_classic
  36 import shutil
  37
  38 bitcoin = lambda v: v * 100000000
  39
  40 def IconButton(filename, parent=None):
  41     pixmap = QPixmap(filename)
  42     icon = QIcon(pixmap)
  43     return QPushButton(icon, "", parent)
  44
  45 class Timer(QThread):
  46     def run(self):
  47         while True:
  48             self.emit(SIGNAL('timersignal'))
  49             time.sleep(0.5)
  50
  51 def resize_line_edit_width(line_edit, text_input):
  52     metrics = QFontMetrics(qApp.font())
  53     # Create an extra character to add some space on the end
  54     text_input += "A"
  55     line_edit.setMinimumWidth(metrics.width(text_input))
  56
  57 def load_theme_name(theme_path):
  58     try:
  59         with open(os.path.join(theme_path, "name.cfg")) as name_cfg_file:
  60             return name_cfg_file.read().rstrip("\n").strip()
  61     except IOError:
  62         return None
  63
  64
  65 def theme_dirs_from_prefix(prefix):
  66     if not os.path.exists(prefix):
  67         return []
  68     theme_paths = {}
  69     for potential_theme in os.listdir(prefix):
  70         theme_full_path = os.path.join(prefix, potential_theme)
  71         theme_css = os.path.join(theme_full_path, "style.css")
  72         if not os.path.exists(theme_css):
  73             continue
  74         theme_name = load_theme_name(theme_full_path)
  75         if theme_name is None:
  76             continue
  77         theme_paths[theme_name] = prefix, potential_theme
  78     return theme_paths
  79
  80 def load_theme_paths():
  81     theme_paths = {}
  82     prefixes = (util.local_data_dir(), util.appdata_dir())
  83     for prefix in prefixes:
  84         theme_paths.update(theme_dirs_from_prefix(prefix))
  85     return theme_paths
  86
  87
  88 def csv_transaction(wallet):
  89     try:
  90         select_export = _('Select file to export your wallet transactions to')
  91         fileName = QFileDialog.getSaveFileName(QWidget(), select_export, os.path.expanduser('~/electrum-history.csv'), "*.csv")
  92         if fileName:
  93             with open(fileName, "w+") as csvfile:
  94                 transaction = csv.writer(csvfile)
  95                 transaction.writerow(["transaction_hash","label", "confirmations", "value", "fee", "balance", "timestamp"])
  96                 for item in wallet.get_tx_history():
  97                     tx_hash, confirmations, is_mine, value, fee, balance, timestamp = item
  98                     if confirmations:
  99                         if timestamp is not None:
 100                             try:
 101                                 time_string = datetime.datetime.fromtimestamp(timestamp).isoformat(' ')[:-3]
 102                             except [RuntimeError, TypeError, NameError] as reason:
 103                                 time_string = "unknown"
 104                                 pass
 105                         else:
 106                           time_string = "unknown"
 107                     else:
 108                         time_string = "pending"
 109
 110                     if value is not None:
 111                         value_string = format_satoshis(value, True, wallet.num_zeros)
 112                     else:
 113                         value_string = '--'
 114
 115                     if fee is not None:
 116                         fee_string = format_satoshis(fee, True, wallet.num_zeros)
 117                     else:
 118                         fee_string = '0'
 119
 120                     if tx_hash:
 121                         label, is_default_label = wallet.get_label(tx_hash)
 122                     else:
 123                       label = ""
 124
 125                     balance_string = format_satoshis(balance, False, wallet.num_zeros)
 126                     transaction.writerow([tx_hash, label, confirmations, value_string, fee_string, balance_string, time_string])
 127                 QMessageBox.information(None,"CSV Export created", "Your CSV export has been successfully created.")
 128     except (IOError, os.error), reason:
 129         export_error_label = _("Electrum was unable to produce a transaction export.")
 130         QMessageBox.critical(None,"Unable to create csv", export_error_label + "\n" + str(reason))
 131
 132
 133 class ElectrumGui(QObject):
 134
 135     def __init__(self, wallet, config, expert=None):
 136         super(QObject, self).__init__()
 137
 138         self.wallet = wallet
 139         self.config = config
 140         self.check_qt_version()
 141         self.expert = expert
 142         if self.expert != None:
 143             self.app = self.expert.app
 144         else:
 145             self.app = QApplication(sys.argv)
 146
 147     def check_qt_version(self):
 148         qtVersion = qVersion()
 149         if not(int(qtVersion[0]) >= 4 and int(qtVersion[2]) >= 7):
 150             app = QApplication(sys.argv)
 151             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")
 152             self.config.set_key('gui','classic',True)
 153             sys.exit(0)
 154
 155
 156     def main(self, url):
 157         actuator = MiniActuator(self.wallet)
 158         # Should probably not modify the current path but instead
 159         # change the behaviour of rsrc(...)
 160         old_path = QDir.currentPath()
 161         actuator.load_theme()
 162
 163         self.mini = MiniWindow(actuator, self.expand, self.config)
 164         driver = MiniDriver(self.wallet, self.mini)
 165
 166         # Reset path back to original value now that loading the GUI
 167         # is completed.
 168         QDir.setCurrent(old_path)
 169
 170         if url:
 171             self.set_url(url)
 172
 173         if self.expert == None:
 174             timer = Timer()
 175             timer.start()
 176             self.expert = gui_classic.ElectrumWindow(self.wallet, self.config)
 177             self.expert.app = self.app
 178             self.expert.connect_slots(timer)
 179             self.expert.update_wallet()
 180             self.app.exec_()
 181
 182     def expand(self):
 183         """Hide the lite mode window and show pro-mode."""
 184         self.config.set_key('gui', 'classic', True)
 185         self.mini.hide()
 186         self.expert.show()
 187
 188     def set_url(self, url):
 189         payto, amount, label, message, signature, identity, url = \
 190             self.wallet.parse_url(url, self.show_message, self.show_question)
 191         self.mini.set_payment_fields(payto, amount)
 192
 193     def show_message(self, message):
 194         QMessageBox.information(self.mini, _("Message"), message, _("OK"))
 195
 196     def show_question(self, message):
 197         choice = QMessageBox.question(self.mini, _("Message"), message,
 198                                       QMessageBox.Yes|QMessageBox.No,
 199                                       QMessageBox.No)
 200         return choice == QMessageBox.Yes
 201
 202     def restore_or_create(self):
 203         qt_gui_object = gui_classic.ElectrumGui(self.wallet, self.app)
 204         return qt_gui_object.restore_or_create()
 205
 206 class TransactionWindow(QDialog):
 207
 208     def set_label(self):
 209         label = unicode(self.label_edit.text())
 210         self.parent.wallet.labels[self.tx_id] = label
 211
 212         super(TransactionWindow, self).accept()
 213
 214     def __init__(self, transaction_id, parent):
 215         super(TransactionWindow, self).__init__()
 216
 217         self.tx_id = str(transaction_id)
 218         self.parent = parent
 219
 220         self.setModal(True)
 221         self.resize(200,100)
 222         self.setWindowTitle(_("Transaction successfully sent"))
 223
 224         self.layout = QGridLayout(self)
 225         history_label = "%s\n%s" % (_("Your transaction has been sent."), _("Please enter a label for this transaction for future reference."))
 226         self.layout.addWidget(QLabel(history_label))
 227
 228         self.label_edit = QLineEdit()
 229         self.label_edit.setPlaceholderText(_("Transaction label"))
 230         self.label_edit.setObjectName("label_input")
 231         self.label_edit.setAttribute(Qt.WA_MacShowFocusRect, 0)
 232         self.label_edit.setFocusPolicy(Qt.ClickFocus)
 233         self.layout.addWidget(self.label_edit)
 234
 235         self.save_button = QPushButton(_("Save"))
 236         self.layout.addWidget(self.save_button)
 237         self.save_button.clicked.connect(self.set_label)
 238
 239         self.exec_()
 240
 241 class MiniWindow(QDialog):
 242
 243     def __init__(self, actuator, expand_callback, config):
 244         super(MiniWindow, self).__init__()
 245         tx = "e08115d0f7819aee65b9d24f81ef9d46eb62bb67ddef5318156cbc3ceb7b703e"
 246
 247         self.actuator = actuator
 248         self.config = config
 249         self.btc_balance = None
 250         self.quote_currencies = ["BRL", "CNY", "EUR", "GBP", "RUB", "USD"]
 251         self.actuator.set_configured_currency(self.set_quote_currency)
 252         self.exchanger = exchange_rate.Exchanger(self)
 253         # Needed because price discovery is done in a different thread
 254         # which needs to be sent back to this main one to update the GUI
 255         self.connect(self, SIGNAL("refresh_balance()"), self.refresh_balance)
 256
 257         self.balance_label = BalanceLabel(self.change_quote_currency)
 258         self.balance_label.setObjectName("balance_label")
 259
 260
 261         # Bitcoin address code
 262         self.address_input = QLineEdit()
 263         self.address_input.setPlaceholderText(_("Enter a Bitcoin address or contact"))
 264         self.address_input.setObjectName("address_input")
 265
 266         self.address_input.setFocusPolicy(Qt.ClickFocus)
 267
 268         self.address_input.textChanged.connect(self.address_field_changed)
 269         resize_line_edit_width(self.address_input,
 270                                "1BtaFUr3qVvAmwrsuDuu5zk6e4s2rxd2Gy")
 271
 272         self.address_completions = QStringListModel()
 273         address_completer = QCompleter(self.address_input)
 274         address_completer.setCaseSensitivity(False)
 275         address_completer.setModel(self.address_completions)
 276         self.address_input.setCompleter(address_completer)
 277
 278         address_layout = QHBoxLayout()
 279         address_layout.addWidget(self.address_input)
 280
 281         self.amount_input = QLineEdit()
 282         self.amount_input.setPlaceholderText(_("... and amount"))
 283         self.amount_input.setObjectName("amount_input")
 284
 285         self.amount_input.setFocusPolicy(Qt.ClickFocus)
 286         # This is changed according to the user's displayed balance
 287         self.amount_validator = QDoubleValidator(self.amount_input)
 288         self.amount_validator.setNotation(QDoubleValidator.StandardNotation)
 289         self.amount_validator.setDecimals(8)
 290         self.amount_input.setValidator(self.amount_validator)
 291
 292         # This removes the very ugly OSX highlighting, please leave this in :D
 293         self.address_input.setAttribute(Qt.WA_MacShowFocusRect, 0)
 294         self.amount_input.setAttribute(Qt.WA_MacShowFocusRect, 0)
 295         self.amount_input.textChanged.connect(self.amount_input_changed)
 296
 297         if self.actuator.wallet.seed:
 298             self.send_button = QPushButton(_("&Send"))
 299         else:
 300             self.send_button = QPushButton(_("&Create"))
 301
 302         self.send_button.setObjectName("send_button")
 303         self.send_button.setDisabled(True);
 304         self.send_button.clicked.connect(self.send)
 305
 306         # Creating the receive button
 307         self.switch_button = QPushButton( QIcon(":icons/switchgui.png"),'' )
 308         self.switch_button.setMaximumWidth(25)
 309         self.switch_button.setFlat(True)
 310         self.switch_button.clicked.connect(expand_callback)
 311
 312         main_layout = QGridLayout(self)
 313
 314         main_layout.addWidget(self.balance_label, 0, 0, 1, 3)
 315         main_layout.addWidget(self.switch_button, 0, 3)
 316
 317         main_layout.addWidget(self.address_input, 1, 0, 1, 4)
 318         main_layout.addWidget(self.amount_input, 2, 0, 1, 2)
 319         main_layout.addWidget(self.send_button, 2, 2, 1, 2)
 320
 321         self.send_button.setMaximumWidth(125)
 322
 323         self.history_list = history_widget.HistoryWidget()
 324         self.history_list.setObjectName("history")
 325         self.history_list.hide()
 326         self.history_list.setAlternatingRowColors(True)
 327
 328         main_layout.addWidget(self.history_list, 3, 0, 1, 4)
 329
 330         self.receiving = receiving_widget.ReceivingWidget(self)
 331         self.receiving.setObjectName("receiving")
 332
 333         # Add to the right side
 334         self.receiving_box = QGroupBox(_("Select a receiving address"))
 335         extra_layout = QGridLayout()
 336
 337         # Checkbox to filter used addresses
 338         hide_used = QCheckBox(_('Hide used addresses'))
 339         hide_used.setChecked(True)
 340         hide_used.stateChanged.connect(self.receiving.toggle_used)
 341
 342         # Events for receiving addresses
 343         self.receiving.clicked.connect(self.receiving.copy_address)
 344         self.receiving.itemDoubleClicked.connect(self.receiving.edit_label)
 345         self.receiving.itemChanged.connect(self.receiving.update_label)
 346
 347
 348         # Label
 349         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)
 350
 351         extra_layout.addWidget(self.receiving, 1,0)
 352         extra_layout.addWidget(hide_used, 2,0)
 353         extra_layout.setColumnMinimumWidth(0,200)
 354
 355         self.receiving_box.setLayout(extra_layout)
 356         main_layout.addWidget(self.receiving_box,0,4,-1,3)
 357         self.receiving_box.hide()
 358
 359         # Creating the menu bar
 360         menubar = QMenuBar()
 361         electrum_menu = menubar.addMenu(_("&Electrum"))
 362
 363         quit_option = electrum_menu.addAction(_("&Close"))
 364
 365         quit_option.triggered.connect(self.close)
 366
 367         view_menu = menubar.addMenu(_("&View"))
 368         extra_menu = menubar.addMenu(_("&Extra"))
 369
 370         backup_wallet = extra_menu.addAction( _("&Create wallet backup"))
 371         backup_wallet.triggered.connect(self.backup_wallet)
 372
 373         export_csv = extra_menu.addAction( _("&Export transactions to CSV") )
 374         export_csv.triggered.connect(lambda: csv_transaction(self.actuator.wallet))
 375
 376         master_key = extra_menu.addAction( _("Copy master public key to clipboard") )
 377         master_key.triggered.connect(self.actuator.copy_master_public_key)
 378
 379         expert_gui = view_menu.addAction(_("&Classic GUI"))
 380         expert_gui.triggered.connect(expand_callback)
 381         themes_menu = view_menu.addMenu(_("&Themes"))
 382         selected_theme = self.actuator.selected_theme()
 383         theme_group = QActionGroup(self)
 384         for theme_name in self.actuator.theme_names():
 385             theme_action = themes_menu.addAction(theme_name)
 386             theme_action.setCheckable(True)
 387             if selected_theme == theme_name:
 388                 theme_action.setChecked(True)
 389             class SelectThemeFunctor:
 390                 def __init__(self, theme_name, toggle_theme):
 391                     self.theme_name = theme_name
 392                     self.toggle_theme = toggle_theme
 393                 def __call__(self, checked):
 394                     if checked:
 395                         self.toggle_theme(self.theme_name)
 396             delegate = SelectThemeFunctor(theme_name, self.toggle_theme)
 397             theme_action.toggled.connect(delegate)
 398             theme_group.addAction(theme_action)
 399         view_menu.addSeparator()
 400
 401         show_receiving = view_menu.addAction(_("Show Receiving addresses"))
 402         show_receiving.setCheckable(True)
 403         show_receiving.toggled.connect(self.toggle_receiving_layout)
 404
 405         show_receiving_toggle = self.config.get("gui_show_receiving",False)
 406         show_receiving.setChecked(show_receiving_toggle)
 407         self.show_receiving = show_receiving
 408
 409         self.toggle_receiving_layout(show_receiving_toggle)
 410
 411
 412         show_history = view_menu.addAction(_("Show History"))
 413         show_history.setCheckable(True)
 414         show_history.toggled.connect(self.show_history)
 415
 416         help_menu = menubar.addMenu(_("&Help"))
 417         the_website = help_menu.addAction(_("&Website"))
 418         the_website.triggered.connect(self.the_website)
 419         help_menu.addSeparator()
 420         report_bug = help_menu.addAction(_("&Report Bug"))
 421         report_bug.triggered.connect(self.show_report_bug)
 422         show_about = help_menu.addAction(_("&About"))
 423         show_about.triggered.connect(self.show_about)
 424         main_layout.setMenuBar(menubar)
 425         self.main_layout = main_layout
 426
 427         quit_shortcut = QShortcut(QKeySequence("Ctrl+Q"), self)
 428         quit_shortcut.activated.connect(self.close)
 429         close_shortcut = QShortcut(QKeySequence("Ctrl+W"), self)
 430         close_shortcut.activated.connect(self.close)
 431
 432         g = self.config.get("winpos-lite",[4, 25, 351, 149])
 433         self.setGeometry(g[0], g[1], g[2], g[3])
 434
 435         show_hist = self.config.get("gui_show_history",False)
 436         show_history.setChecked(show_hist)
 437         self.show_history(show_hist)
 438
 439         self.setWindowIcon(QIcon(":electrum.png"))
 440         self.setWindowTitle("Electrum")
 441         self.setWindowFlags(Qt.Window|Qt.MSWindowsFixedSizeDialogHint)
 442         self.layout().setSizeConstraint(QLayout.SetFixedSize)
 443         self.setObjectName("main_window")
 444         self.show()
 445
 446
 447     def toggle_theme(self, theme_name):
 448         old_path = QDir.currentPath()
 449         self.actuator.change_theme(theme_name)
 450         # Recompute style globally
 451         qApp.style().unpolish(self)
 452         qApp.style().polish(self)
 453         QDir.setCurrent(old_path)
 454
 455     def closeEvent(self, event):
 456         g = self.geometry()
 457         self.config.set_key("winpos-lite", [g.left(),g.top(),g.width(),g.height()],True)
 458         self.config.set_key("gui_show_history", self.history_list.isVisible(),True)
 459         self.config.set_key("gui_show_receiving", self.receiving_box.isVisible(),True)
 460
 461         super(MiniWindow, self).closeEvent(event)
 462         qApp.quit()
 463
 464     def set_payment_fields(self, dest_address, amount):
 465         self.address_input.setText(dest_address)
 466         self.address_field_changed(dest_address)
 467         self.amount_input.setText(amount)
 468
 469     def activate(self):
 470         pass
 471
 472     def deactivate(self):
 473         pass
 474
 475     def set_quote_currency(self, currency):
 476         """Set and display the fiat currency country."""
 477         assert currency in self.quote_currencies
 478         self.quote_currencies.remove(currency)
 479         self.quote_currencies.insert(0, currency)
 480         self.refresh_balance()
 481
 482     def change_quote_currency(self):
 483         self.quote_currencies = \
 484             self.quote_currencies[1:] + self.quote_currencies[0:1]
 485         self.actuator.set_config_currency(self.quote_currencies[0])
 486         self.refresh_balance()
 487
 488     def refresh_balance(self):
 489         if self.btc_balance is None:
 490             # Price has been discovered before wallet has been loaded
 491             # and server connect... so bail.
 492             return
 493         self.set_balances(self.btc_balance)
 494         self.amount_input_changed(self.amount_input.text())
 495
 496     def set_balances(self, btc_balance):
 497         """Set the bitcoin balance and update the amount label accordingly."""
 498         self.btc_balance = btc_balance
 499         quote_text = self.create_quote_text(btc_balance)
 500         if quote_text:
 501             quote_text = "(%s)" % quote_text
 502         btc_balance = "%.4f" % (btc_balance / bitcoin(1))
 503         self.balance_label.set_balance_text(btc_balance, quote_text)
 504         self.setWindowTitle("Electrum %s - %s BTC" % (electrum_version, btc_balance))
 505
 506     def amount_input_changed(self, amount_text):
 507         """Update the number of bitcoins displayed."""
 508         self.check_button_status()
 509
 510         try:
 511             amount = D(str(amount_text))
 512         except decimal.InvalidOperation:
 513             self.balance_label.show_balance()
 514         else:
 515             quote_text = self.create_quote_text(amount * bitcoin(1))
 516             if quote_text:
 517                 self.balance_label.set_amount_text(quote_text)
 518                 self.balance_label.show_amount()
 519             else:
 520                 self.balance_label.show_balance()
 521
 522     def create_quote_text(self, btc_balance):
 523         """Return a string copy of the amount fiat currency the
 524         user has in bitcoins."""
 525         quote_currency = self.quote_currencies[0]
 526         quote_balance = self.exchanger.exchange(btc_balance, quote_currency)
 527         if quote_balance is None:
 528             quote_text = ""
 529         else:
 530             quote_text = "%.2f %s" % ((quote_balance / bitcoin(1)),
 531                                       quote_currency)
 532         return quote_text
 533
 534     def send(self):
 535         if self.actuator.send(self.address_input.text(),
 536                               self.amount_input.text(), self):
 537             self.address_input.setText("")
 538             self.amount_input.setText("")
 539
 540     def check_button_status(self):
 541         """Check that the bitcoin address is valid and that something
 542         is entered in the amount before making the send button clickable."""
 543         try:
 544             value = D(str(self.amount_input.text())) * 10**8
 545         except decimal.InvalidOperation:
 546             value = None
 547         # self.address_input.property(...) returns a qVariant, not a bool.
 548         # The == is needed to properly invoke a comparison.
 549         if (self.address_input.property("isValid") == True and
 550             value is not None and 0 < value <= self.btc_balance):
 551             self.send_button.setDisabled(False)
 552         else:
 553             self.send_button.setDisabled(True)
 554
 555     def address_field_changed(self, address):
 556         # label or alias, with address in brackets
 557         match2 = re.match("(.*?)\s*\<([1-9A-HJ-NP-Za-km-z]{26,})\>",
 558                           address)
 559         if match2:
 560           address = match2.group(2)
 561           self.address_input.setText(address)
 562
 563         if is_valid(address):
 564             self.check_button_status()
 565             self.address_input.setProperty("isValid", True)
 566             self.recompute_style(self.address_input)
 567         else:
 568             self.send_button.setDisabled(True)
 569             self.address_input.setProperty("isValid", False)
 570             self.recompute_style(self.address_input)
 571
 572         if len(address) == 0:
 573             self.address_input.setProperty("isValid", None)
 574             self.recompute_style(self.address_input)
 575
 576     def recompute_style(self, element):
 577         self.style().unpolish(element)
 578         self.style().polish(element)
 579
 580     def copy_address(self):
 581         receive_popup = ReceivePopup(self.receive_button)
 582         self.actuator.copy_address(receive_popup)
 583
 584     def update_completions(self, completions):
 585         self.address_completions.setStringList(completions)
 586
 587
 588     def update_history(self, tx_history):
 589
 590         self.history_list.empty()
 591
 592         for item in tx_history[-10:]:
 593             tx_hash, conf, is_mine, value, fee, balance, timestamp = item
 594             label = self.actuator.wallet.get_label(tx_hash)[0]
 595             #amount = D(value) / 10**8
 596             v_str = format_satoshis(value, True)
 597             self.history_list.append(label, v_str, age(timestamp))
 598
 599     def acceptbit(self):
 600         self.actuator.acceptbit(self.quote_currencies[0])
 601
 602     def the_website(self):
 603         webbrowser.open("http://electrum.org")
 604
 605     def show_about(self):
 606         QMessageBox.about(self, "Electrum",
 607             _("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."))
 608
 609     def show_report_bug(self):
 610         QMessageBox.information(self, "Electrum - " + _("Reporting Bugs"),
 611             _("Please report any bugs as issues on github:")+" <a href=\"https://github.com/spesmilo/electrum/issues\">https://github.com/spesmilo/electrum/issues</a>")
 612
 613     def toggle_receiving_layout(self, toggle_state):
 614         if toggle_state:
 615           self.receiving_box.show()
 616         else:
 617           self.receiving_box.hide()
 618
 619     def show_history(self, toggle_state):
 620         if toggle_state:
 621             self.main_layout.setRowMinimumHeight(3,200)
 622             self.history_list.show()
 623         else:
 624             self.main_layout.setRowMinimumHeight(3,0)
 625             self.history_list.hide()
 626
 627     def backup_wallet(self):
 628         try:
 629           folderName = QFileDialog.getExistingDirectory(QWidget(), _('Select folder to save a copy of your wallet to'), os.path.expanduser('~/'))
 630           if folderName:
 631             sourceFile = util.user_dir() + '/electrum.dat'
 632             shutil.copy2(sourceFile, str(folderName))
 633             QMessageBox.information(None,"Wallet backup created", _("A copy of your wallet file was created in")+" '%s'" % str(folderName))
 634         except (IOError, os.error), reason:
 635           QMessageBox.critical(None,"Unable to create backup", _("Electrum was unable to copy your wallet file to the specified location.")+"\n" + str(reason))
 636
 637
 638
 639
 640 class BalanceLabel(QLabel):
 641
 642     SHOW_CONNECTING = 1
 643     SHOW_BALANCE = 2
 644     SHOW_AMOUNT = 3
 645
 646     def __init__(self, change_quote_currency, parent=None):
 647         super(QLabel, self).__init__(_("Connecting..."), parent)
 648         self.change_quote_currency = change_quote_currency
 649         self.state = self.SHOW_CONNECTING
 650         self.balance_text = ""
 651         self.amount_text = ""
 652
 653     def mousePressEvent(self, event):
 654         """Change the fiat currency selection if window background is clicked."""
 655         if self.state != self.SHOW_CONNECTING:
 656             self.change_quote_currency()
 657
 658     def set_balance_text(self, btc_balance, quote_text):
 659         """Set the amount of bitcoins in the gui."""
 660         if self.state == self.SHOW_CONNECTING:
 661             self.state = self.SHOW_BALANCE
 662         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)
 663         if self.state == self.SHOW_BALANCE:
 664             self.setText(self.balance_text)
 665
 666     def set_amount_text(self, quote_text):
 667         self.amount_text = "<span style='font-size: 10pt'>%s</span>" % quote_text
 668         if self.state == self.SHOW_AMOUNT:
 669             self.setText(self.amount_text)
 670
 671     def show_balance(self):
 672         if self.state == self.SHOW_AMOUNT:
 673             self.state = self.SHOW_BALANCE
 674             self.setText(self.balance_text)
 675
 676     def show_amount(self):
 677         if self.state == self.SHOW_BALANCE:
 678             self.state = self.SHOW_AMOUNT
 679             self.setText(self.amount_text)
 680
 681 def ok_cancel_buttons(dialog):
 682     row_layout = QHBoxLayout()
 683     row_layout.addStretch(1)
 684     ok_button = QPushButton(_("OK"))
 685     row_layout.addWidget(ok_button)
 686     ok_button.clicked.connect(dialog.accept)
 687     cancel_button = QPushButton(_("Cancel"))
 688     row_layout.addWidget(cancel_button)
 689     cancel_button.clicked.connect(dialog.reject)
 690     return row_layout
 691
 692 class PasswordDialog(QDialog):
 693
 694     def __init__(self, parent):
 695         super(QDialog, self).__init__(parent)
 696
 697         self.setModal(True)
 698
 699         self.password_input = QLineEdit()
 700         self.password_input.setEchoMode(QLineEdit.Password)
 701
 702         main_layout = QVBoxLayout(self)
 703         message = _('Please enter your password')
 704         main_layout.addWidget(QLabel(message))
 705
 706         grid = QGridLayout()
 707         grid.setSpacing(8)
 708         grid.addWidget(QLabel(_('Password')), 1, 0)
 709         grid.addWidget(self.password_input, 1, 1)
 710         main_layout.addLayout(grid)
 711
 712         main_layout.addLayout(ok_cancel_buttons(self))
 713         self.setLayout(main_layout)
 714
 715     def run(self):
 716         if not self.exec_():
 717             return
 718         return unicode(self.password_input.text())
 719
 720 class ReceivePopup(QDialog):
 721
 722     def leaveEvent(self, event):
 723         self.close()
 724
 725     def setup(self, address):
 726         label = QLabel(_("Copied your Bitcoin address to the clipboard!"))
 727         address_display = QLineEdit(address)
 728         address_display.setReadOnly(True)
 729         resize_line_edit_width(address_display, address)
 730
 731         main_layout = QVBoxLayout(self)
 732         main_layout.addWidget(label)
 733         main_layout.addWidget(address_display)
 734
 735         self.setMouseTracking(True)
 736         self.setWindowTitle("Electrum - " + _("Receive Bitcoin payment"))
 737         self.setWindowFlags(Qt.Window|Qt.FramelessWindowHint|
 738                             Qt.MSWindowsFixedSizeDialogHint)
 739         self.layout().setSizeConstraint(QLayout.SetFixedSize)
 740         #self.setFrameStyle(QFrame.WinPanel|QFrame.Raised)
 741         #self.setAlignment(Qt.AlignCenter)
 742
 743     def popup(self):
 744         parent = self.parent()
 745         top_left_pos = parent.mapToGlobal(parent.rect().bottomLeft())
 746         self.move(top_left_pos)
 747         center_mouse_pos = self.mapToGlobal(self.rect().center())
 748         QCursor.setPos(center_mouse_pos)
 749         self.show()
 750
 751 class MiniActuator:
 752     """Initialize the definitions relating to themes and
 753     sending/receiving bitcoins."""
 754
 755
 756     def __init__(self, wallet):
 757         """Retrieve the gui theme used in previous session."""
 758         self.wallet = wallet
 759         self.theme_name = self.wallet.config.get('litegui_theme','Cleanlook')
 760         self.themes = load_theme_paths()
 761
 762     def load_theme(self):
 763         """Load theme retrieved from wallet file."""
 764         try:
 765             theme_prefix, theme_path = self.themes[self.theme_name]
 766         except KeyError:
 767             util.print_error("Theme not found!", self.theme_name)
 768             return
 769         QDir.setCurrent(os.path.join(theme_prefix, theme_path))
 770         with open(rsrc("style.css")) as style_file:
 771             qApp.setStyleSheet(style_file.read())
 772
 773     def theme_names(self):
 774         """Sort themes."""
 775         return sorted(self.themes.keys())
 776
 777     def selected_theme(self):
 778         """Select theme."""
 779         return self.theme_name
 780
 781     def change_theme(self, theme_name):
 782         """Change theme."""
 783         self.theme_name = theme_name
 784         self.wallet.config.set_key('litegui_theme',theme_name)
 785         self.load_theme()
 786
 787     def set_configured_currency(self, set_quote_currency):
 788         """Set the inital fiat currency conversion country (USD/EUR/GBP) in
 789         the GUI to what it was set to in the wallet."""
 790         currency = self.wallet.config.get('conversion_currency')
 791         # currency can be none when Electrum is used for the first
 792         # time and no setting has been created yet.
 793         if currency is not None:
 794             set_quote_currency(currency)
 795
 796     def set_config_currency(self, conversion_currency):
 797         """Change the wallet fiat currency country."""
 798         self.wallet.config.set_key('conversion_currency',conversion_currency,True)
 799
 800     def copy_address(self, receive_popup):
 801         """Copy the wallet addresses into the client."""
 802         addrs = [addr for addr in self.wallet.addresses(True)
 803                  if not self.wallet.is_change(addr)]
 804         # Select most recent addresses from gap limit
 805         addrs = addrs[-self.wallet.gap_limit:]
 806         copied_address = random.choice(addrs)
 807         qApp.clipboard().setText(copied_address)
 808         receive_popup.setup(copied_address)
 809         receive_popup.popup()
 810
 811     def waiting_dialog(self, f):
 812         s = Timer()
 813         s.start()
 814         w = QDialog()
 815         w.resize(200, 70)
 816         w.setWindowTitle('Electrum')
 817         l = QLabel('Sending transaction, please wait.')
 818         vbox = QVBoxLayout()
 819         vbox.addWidget(l)
 820         w.setLayout(vbox)
 821         w.show()
 822         def ff():
 823             s = f()
 824             if s: l.setText(s)
 825             else: w.close()
 826         w.connect(s, QtCore.SIGNAL('timersignal'), ff)
 827         w.exec_()
 828         w.destroy()
 829
 830
 831     def send(self, address, amount, parent_window):
 832         """Send bitcoins to the target address."""
 833         dest_address = self.fetch_destination(address)
 834
 835         if dest_address is None or not is_valid(dest_address):
 836             QMessageBox.warning(parent_window, _('Error'),
 837                 _('Invalid Bitcoin Address') + ':\n' + address, _('OK'))
 838             return False
 839
 840         convert_amount = lambda amount: \
 841             int(D(unicode(amount)) * bitcoin(1))
 842         amount = convert_amount(amount)
 843
 844         if self.wallet.use_encryption:
 845             password_dialog = PasswordDialog(parent_window)
 846             password = password_dialog.run()
 847             if not password:
 848                 return
 849         else:
 850             password = None
 851
 852         fee = 0
 853         # 0.1 BTC = 10000000
 854         if amount < bitcoin(1) / 10:
 855             # 0.001 BTC
 856             fee = bitcoin(1) / 1000
 857
 858         try:
 859             tx = self.wallet.mktx([(dest_address, amount)], password, fee)
 860         except BaseException as error:
 861             QMessageBox.warning(parent_window, _('Error'), str(error), _('OK'))
 862             return False
 863
 864         if tx.is_complete:
 865             h = self.wallet.send_tx(tx)
 866
 867             self.waiting_dialog(lambda: False if self.wallet.tx_event.isSet() else _("Sending transaction, please wait..."))
 868
 869             status, message = self.wallet.receive_tx(h)
 870
 871             if not status:
 872                 import tempfile
 873                 dumpf = tempfile.NamedTemporaryFile(delete=False)
 874                 dumpf.write(tx)
 875                 dumpf.close()
 876                 print "Dumped error tx to", dumpf.name
 877                 QMessageBox.warning(parent_window, _('Error'), message, _('OK'))
 878                 return False
 879
 880             TransactionWindow(message, self)
 881         else:
 882             filename = 'unsigned_tx_%s' % (time.mktime(time.gmtime()))
 883             try:
 884                 fileName = QFileDialog.getSaveFileName(QWidget(), _("Select a transaction filename"), os.path.expanduser('~/%s' % (filename)))
 885                 with open(fileName,'w') as f:
 886                     f.write(json.dumps(tx.as_dict(),indent=4) + '\n')
 887                 QMessageBox.information(QWidget(), _('Unsigned transaction created'), _("Unsigned transaction was saved to file:") + " " +fileName, _('OK'))
 888             except BaseException as e:
 889                 QMessageBox.warning(QWidget(), _('Error'), _('Could not write transaction to file: %s' % e), _('OK'))
 890         return True
 891
 892     def fetch_destination(self, address):
 893         recipient = unicode(address).strip()
 894
 895         # alias
 896         match1 = re.match("^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$",
 897                           recipient)
 898
 899         # label or alias, with address in brackets
 900         match2 = re.match("(.*?)\s*\<([1-9A-HJ-NP-Za-km-z]{26,})\>",
 901                           recipient)
 902
 903         if match1:
 904             dest_address = \
 905                 self.wallet.get_alias(recipient, True,
 906                                       self.show_message, self.question)
 907             return dest_address
 908         elif match2:
 909             return match2.group(2)
 910         else:
 911             return recipient
 912
 913
 914     def copy_master_public_key(self):
 915         master_pubkey = self.wallet.get_master_public_key()
 916         qApp.clipboard().setText(master_pubkey)
 917         QMessageBox.information(None, _("Copy successful"), _("Your master public key has been copied to your clipboard."))
 918
 919
 920     def acceptbit(self, currency):
 921         master_pubkey = self.wallet.master_public_key
 922         url = "http://acceptbit.com/mpk/%s/%s" % (master_pubkey, currency)
 923         webbrowser.open(url)
 924
 925     def show_seed_dialog(self):
 926         gui_classic.ElectrumWindow.show_seed_dialog(self.wallet)
 927
 928 class MiniDriver(QObject):
 929
 930     INITIALIZING = 0
 931     CONNECTING = 1
 932     SYNCHRONIZING = 2
 933     READY = 3
 934
 935     def __init__(self, wallet, window):
 936         super(QObject, self).__init__()
 937
 938         self.wallet = wallet
 939         self.window = window
 940
 941         self.wallet.interface.register_callback('updated',self.update_callback)
 942         self.wallet.interface.register_callback('connected', self.update_callback)
 943         self.wallet.interface.register_callback('disconnected', self.update_callback)
 944
 945         self.state = None
 946
 947         self.initializing()
 948         self.connect(self, SIGNAL("updatesignal()"), self.update)
 949         self.update_callback()
 950
 951     # This is a hack to workaround that Qt does not like changing the
 952     # window properties from this other thread before the runloop has
 953     # been called from.
 954     def update_callback(self):
 955         self.emit(SIGNAL("updatesignal()"))
 956
 957     def update(self):
 958         if not self.wallet.interface:
 959             self.initializing()
 960         elif not self.wallet.interface.is_connected:
 961             self.connecting()
 962         elif not self.wallet.up_to_date:
 963             self.synchronizing()
 964         else:
 965             self.ready()
 966
 967         if self.wallet.up_to_date:
 968             self.update_balance()
 969             self.update_completions()
 970             self.update_history()
 971
 972     def initializing(self):
 973         if self.state == self.INITIALIZING:
 974             return
 975         self.state = self.INITIALIZING
 976         self.window.deactivate()
 977
 978     def connecting(self):
 979         if self.state == self.CONNECTING:
 980             return
 981         self.state = self.CONNECTING
 982         self.window.deactivate()
 983
 984     def synchronizing(self):
 985         if self.state == self.SYNCHRONIZING:
 986             return
 987         self.state = self.SYNCHRONIZING
 988         self.window.deactivate()
 989
 990     def ready(self):
 991         if self.state == self.READY:
 992             return
 993         self.state = self.READY
 994         self.window.activate()
 995
 996     def update_balance(self):
 997         conf_balance, unconf_balance = self.wallet.get_balance()
 998         balance = D(conf_balance + unconf_balance)
 999         self.window.set_balances(balance)
1000
1001     def update_completions(self):
1002         completions = []
1003         for addr, label in self.wallet.labels.items():
1004             if addr in self.wallet.addressbook:
1005                 completions.append("%s <%s>" % (label, addr))
1006         self.window.update_completions(completions)
1007
1008     def update_history(self):
1009         tx_history = self.wallet.get_tx_history()
1010         self.window.update_history(tx_history)
1011
1012
1013 if __name__ == "__main__":
1014     app = QApplication(sys.argv)
1015     with open(rsrc("style.css")) as style_file:
1016         app.setStyleSheet(style_file.read())
1017     mini = MiniWindow()
1018     sys.exit(app.exec_())
1019