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