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