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 wallet import format_satoshis
  35 import gui_qt
  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 class ElectrumGui(QObject):
  89
  90     def __init__(self, wallet, config):
  91         super(QObject, self).__init__()
  92
  93         self.wallet = wallet
  94         self.config = config
  95         self.check_qt_version()
  96         self.app = QApplication(sys.argv)
  97
  98
  99     def check_qt_version(self):
 100         qtVersion = qVersion()
 101         if not(int(qtVersion[0]) >= 4 and int(qtVersion[2]) >= 7):
 102             app = QApplication(sys.argv)
 103             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")
 104             self.config.set_key('gui','classic',True)
 105             sys.exit(0)
 106
 107
 108     def main(self, url):
 109         actuator = MiniActuator(self.wallet)
 110         # Should probably not modify the current path but instead
 111         # change the behaviour of rsrc(...)
 112         old_path = QDir.currentPath()
 113         actuator.load_theme()
 114
 115         self.mini = MiniWindow(actuator, self.expand, self.config)
 116         driver = MiniDriver(self.wallet, self.mini)
 117
 118         # Reset path back to original value now that loading the GUI
 119         # is completed.
 120         QDir.setCurrent(old_path)
 121
 122         if url:
 123             self.set_url(url)
 124
 125         timer = Timer()
 126         timer.start()
 127         self.expert = gui_qt.ElectrumWindow(self.wallet, self.config)
 128         self.expert.app = self.app
 129         self.expert.connect_slots(timer)
 130         self.expert.update_wallet()
 131         self.app.exec_()
 132
 133     def expand(self):
 134         """Hide the lite mode window and show pro-mode."""
 135         self.mini.hide()
 136         self.expert.show()
 137
 138     def set_url(self, url):
 139         payto, amount, label, message, signature, identity, url = \
 140             self.wallet.parse_url(url, self.show_message, self.show_question)
 141         self.mini.set_payment_fields(payto, amount)
 142
 143     def show_message(self, message):
 144         QMessageBox.information(self.mini, _("Message"), message, _("OK"))
 145
 146     def show_question(self, message):
 147         choice = QMessageBox.question(self.mini, _("Message"), message,
 148                                       QMessageBox.Yes|QMessageBox.No,
 149                                       QMessageBox.No)
 150         return choice == QMessageBox.Yes
 151
 152     def restore_or_create(self):
 153         qt_gui_object = gui_qt.ElectrumGui(self.wallet, self.app)
 154         return qt_gui_object.restore_or_create()
 155
 156 class TransactionWindow(QDialog):
 157
 158     def set_label(self):
 159         label = unicode(self.label_edit.text())
 160         self.parent.wallet.labels[self.tx_id] = label
 161
 162         super(TransactionWindow, self).accept()
 163
 164     def __init__(self, transaction_id, parent):
 165         super(TransactionWindow, self).__init__()
 166
 167         self.tx_id = str(transaction_id)
 168         self.parent = parent
 169
 170         self.setModal(True)
 171         self.resize(200,100)
 172         self.setWindowTitle("Transaction successfully sent")
 173
 174         self.layout = QGridLayout(self)
 175         self.layout.addWidget(QLabel("Your transaction has been sent.\nPlease enter a label for this transaction for future reference."))
 176
 177         self.label_edit = QLineEdit()
 178         self.label_edit.setPlaceholderText(_("Transaction label"))
 179         self.label_edit.setObjectName("label_input")
 180         self.label_edit.setAttribute(Qt.WA_MacShowFocusRect, 0)
 181         self.label_edit.setFocusPolicy(Qt.ClickFocus)
 182         self.layout.addWidget(self.label_edit)
 183
 184         self.save_button = QPushButton(_("Save"))
 185         self.layout.addWidget(self.save_button)
 186         self.save_button.clicked.connect(self.set_label)
 187
 188         self.exec_()
 189
 190 class MiniWindow(QDialog):
 191
 192     def __init__(self, actuator, expand_callback, config):
 193         super(MiniWindow, self).__init__()
 194         tx = "e08115d0f7819aee65b9d24f81ef9d46eb62bb67ddef5318156cbc3ceb7b703e"
 195
 196         self.actuator = actuator
 197         self.config = config
 198         self.btc_balance = None
 199         self.quote_currencies = ["EUR", "USD", "GBP"]
 200         self.actuator.set_configured_currency(self.set_quote_currency)
 201         self.exchanger = exchange_rate.Exchanger(self)
 202         # Needed because price discovery is done in a different thread
 203         # which needs to be sent back to this main one to update the GUI
 204         self.connect(self, SIGNAL("refresh_balance()"), self.refresh_balance)
 205
 206         self.balance_label = BalanceLabel(self.change_quote_currency)
 207         self.balance_label.setObjectName("balance_label")
 208
 209
 210         # Bitcoin address code
 211         self.address_input = QLineEdit()
 212         self.address_input.setPlaceholderText(_("Enter a Bitcoin address or contact"))
 213         self.address_input.setObjectName("address_input")
 214
 215         self.address_input.setFocusPolicy(Qt.ClickFocus)
 216
 217         self.address_input.textChanged.connect(self.address_field_changed)
 218         resize_line_edit_width(self.address_input,
 219                                "1BtaFUr3qVvAmwrsuDuu5zk6e4s2rxd2Gy")
 220
 221         self.address_completions = QStringListModel()
 222         address_completer = QCompleter(self.address_input)
 223         address_completer.setCaseSensitivity(False)
 224         address_completer.setModel(self.address_completions)
 225         self.address_input.setCompleter(address_completer)
 226
 227         address_layout = QHBoxLayout()
 228         address_layout.addWidget(self.address_input)
 229
 230         self.amount_input = QLineEdit()
 231         self.amount_input.setPlaceholderText(_("... and amount"))
 232         self.amount_input.setObjectName("amount_input")
 233
 234         self.amount_input.setFocusPolicy(Qt.ClickFocus)
 235         # This is changed according to the user's displayed balance
 236         self.amount_validator = QDoubleValidator(self.amount_input)
 237         self.amount_validator.setNotation(QDoubleValidator.StandardNotation)
 238         self.amount_validator.setDecimals(8)
 239         self.amount_input.setValidator(self.amount_validator)
 240
 241         # This removes the very ugly OSX highlighting, please leave this in :D
 242         self.address_input.setAttribute(Qt.WA_MacShowFocusRect, 0)
 243         self.amount_input.setAttribute(Qt.WA_MacShowFocusRect, 0)
 244         self.amount_input.textChanged.connect(self.amount_input_changed)
 245
 246         self.send_button = QPushButton(_("&Send"))
 247         self.send_button.setObjectName("send_button")
 248         self.send_button.setDisabled(True);
 249         self.send_button.clicked.connect(self.send)
 250
 251         # Creating the receive button
 252         self.receive_button = QPushButton(_("&Receive"))
 253         self.receive_button.setObjectName("receive_button")
 254         self.receive_button.setDefault(True)
 255
 256         main_layout = QGridLayout(self)
 257
 258         main_layout.addWidget(self.balance_label, 0, 0)
 259         main_layout.addWidget(self.receive_button, 0, 1)
 260
 261         main_layout.addWidget(self.address_input, 1, 0)
 262
 263         main_layout.addWidget(self.amount_input, 2, 0)
 264         main_layout.addWidget(self.send_button, 2, 1)
 265
 266         self.history_list = history_widget.HistoryWidget()
 267         self.history_list.setObjectName("history")
 268         self.history_list.hide()
 269         self.history_list.setAlternatingRowColors(True)
 270
 271         main_layout.addWidget(self.history_list, 3, 0, 1, 2)
 272
 273
 274         self.receiving = receiving_widget.ReceivingWidget(self)
 275         self.receiving.setObjectName("receiving")
 276
 277         # Add to the right side
 278         self.receiving_box = QGroupBox(_("Select a receiving address"))
 279         extra_layout = QGridLayout()
 280
 281         # Checkbox to filter used addresses
 282         hide_used = QCheckBox(_('Hide used addresses'))
 283         hide_used.setChecked(True)
 284         hide_used.stateChanged.connect(self.receiving.toggle_used)
 285
 286         # Events for receiving addresses
 287         self.receiving.clicked.connect(self.receiving.copy_address)
 288         self.receiving.itemDoubleClicked.connect(self.receiving.edit_label)
 289         self.receiving.itemChanged.connect(self.receiving.update_label)
 290
 291         # Label
 292         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)
 293
 294         extra_layout.addWidget(self.receiving, 1,0)
 295         extra_layout.addWidget(hide_used, 2,0)
 296         extra_layout.setColumnMinimumWidth(0,200)
 297
 298         self.receiving_box.setLayout(extra_layout)
 299         main_layout.addWidget(self.receiving_box,0,3,-1,3)
 300         self.receiving_box.hide()
 301
 302         self.receive_button.clicked.connect(self.toggle_receiving_layout)
 303
 304         # Creating the menu bar
 305         menubar = QMenuBar()
 306         electrum_menu = menubar.addMenu(_("&Bitcoin"))
 307
 308         electrum_menu.addSeparator()
 309
 310         quit_option = electrum_menu.addAction(_("&Quit"))
 311         quit_option.triggered.connect(self.close)
 312
 313         view_menu = menubar.addMenu(_("&View"))
 314         extra_menu = menubar.addMenu(_("&Extra"))
 315
 316         backup_wallet = extra_menu.addAction( _("&Create wallet backup"))
 317         backup_wallet.triggered.connect(self.backup_wallet)
 318
 319         export_csv = extra_menu.addAction( _("&Export transactions to CSV") )
 320         export_csv.triggered.connect(self.actuator.csv_transaction)
 321
 322         master_key = extra_menu.addAction( _("Copy master public key to clipboard") )
 323         master_key.triggered.connect(self.actuator.copy_master_public_key)
 324
 325         expert_gui = view_menu.addAction(_("&Classic GUI"))
 326         expert_gui.triggered.connect(expand_callback)
 327         themes_menu = view_menu.addMenu(_("&Themes"))
 328         selected_theme = self.actuator.selected_theme()
 329         theme_group = QActionGroup(self)
 330         for theme_name in self.actuator.theme_names():
 331             theme_action = themes_menu.addAction(theme_name)
 332             theme_action.setCheckable(True)
 333             if selected_theme == theme_name:
 334                 theme_action.setChecked(True)
 335             class SelectThemeFunctor:
 336                 def __init__(self, theme_name, toggle_theme):
 337                     self.theme_name = theme_name
 338                     self.toggle_theme = toggle_theme
 339                 def __call__(self, checked):
 340                     if checked:
 341                         self.toggle_theme(self.theme_name)
 342             delegate = SelectThemeFunctor(theme_name, self.toggle_theme)
 343             theme_action.toggled.connect(delegate)
 344             theme_group.addAction(theme_action)
 345         view_menu.addSeparator()
 346         show_history = view_menu.addAction(_("Show History"))
 347         show_history.setCheckable(True)
 348         show_history.toggled.connect(self.show_history)
 349
 350         help_menu = menubar.addMenu(_("&Help"))
 351         the_website = help_menu.addAction(_("&Website"))
 352         the_website.triggered.connect(self.the_website)
 353         help_menu.addSeparator()
 354         report_bug = help_menu.addAction(_("&Report Bug"))
 355         report_bug.triggered.connect(self.show_report_bug)
 356         show_about = help_menu.addAction(_("&About"))
 357         show_about.triggered.connect(self.show_about)
 358         main_layout.setMenuBar(menubar)
 359         self.main_layout = main_layout
 360
 361         quit_shortcut = QShortcut(QKeySequence("Ctrl+Q"), self)
 362         quit_shortcut.activated.connect(self.close)
 363         close_shortcut = QShortcut(QKeySequence("Ctrl+W"), self)
 364         close_shortcut.activated.connect(self.close)
 365
 366         g = self.config.get("winpos-lite",[4, 25, 351, 149])
 367         self.setGeometry(g[0], g[1], g[2], g[3])
 368
 369         show_hist = self.config.get("gui_show_history",False)
 370         show_history.setChecked(show_hist)
 371         self.show_history(show_hist)
 372
 373         self.setWindowIcon(QIcon(":electrum.png"))
 374         self.setWindowTitle("Electrum")
 375         self.setWindowFlags(Qt.Window|Qt.MSWindowsFixedSizeDialogHint)
 376         self.layout().setSizeConstraint(QLayout.SetFixedSize)
 377         self.setObjectName("main_window")
 378         self.show()
 379
 380     def toggle_receiving_layout(self):
 381         if self.receiving_box.isVisible():
 382             self.receiving_box.hide()
 383             self.receive_button.setProperty("isActive", False)
 384
 385             qApp.style().unpolish(self.receive_button)
 386             qApp.style().polish(self.receive_button)
 387         else:
 388             self.receiving_box.show()
 389             self.receive_button.setProperty("isActive", 'true')
 390
 391             qApp.style().unpolish(self.receive_button)
 392             qApp.style().polish(self.receive_button)
 393
 394     def toggle_theme(self, theme_name):
 395         old_path = QDir.currentPath()
 396         self.actuator.change_theme(theme_name)
 397         # Recompute style globally
 398         qApp.style().unpolish(self)
 399         qApp.style().polish(self)
 400         QDir.setCurrent(old_path)
 401
 402     def closeEvent(self, event):
 403         g = self.geometry()
 404         self.config.set_key("winpos-lite", [g.left(),g.top(),g.width(),g.height()],True)
 405         self.config.set_key("gui_show_history", self.history_list.isVisible(),True)
 406
 407         super(MiniWindow, self).closeEvent(event)
 408         qApp.quit()
 409
 410     def set_payment_fields(self, dest_address, amount):
 411         self.address_input.setText(dest_address)
 412         self.address_field_changed(dest_address)
 413         self.amount_input.setText(amount)
 414
 415     def activate(self):
 416         pass
 417
 418     def deactivate(self):
 419         pass
 420
 421     def set_quote_currency(self, currency):
 422         """Set and display the fiat currency country."""
 423         assert currency in self.quote_currencies
 424         self.quote_currencies.remove(currency)
 425         self.quote_currencies.insert(0, currency)
 426         self.refresh_balance()
 427
 428     def change_quote_currency(self):
 429         self.quote_currencies = \
 430             self.quote_currencies[1:] + self.quote_currencies[0:1]
 431         self.actuator.set_config_currency(self.quote_currencies[0])
 432         self.refresh_balance()
 433
 434     def refresh_balance(self):
 435         if self.btc_balance is None:
 436             # Price has been discovered before wallet has been loaded
 437             # and server connect... so bail.
 438             return
 439         self.set_balances(self.btc_balance)
 440         self.amount_input_changed(self.amount_input.text())
 441
 442     def set_balances(self, btc_balance):
 443         """Set the bitcoin balance and update the amount label accordingly."""
 444         self.btc_balance = btc_balance
 445         quote_text = self.create_quote_text(btc_balance)
 446         if quote_text:
 447             quote_text = "(%s)" % quote_text
 448         btc_balance = "%.2f" % (btc_balance / bitcoin(1))
 449         self.balance_label.set_balance_text(btc_balance, quote_text)
 450         self.setWindowTitle("Electrum - %s BTC" % btc_balance)
 451
 452     def amount_input_changed(self, amount_text):
 453         """Update the number of bitcoins displayed."""
 454         self.check_button_status()
 455
 456         try:
 457             amount = D(str(amount_text))
 458         except decimal.InvalidOperation:
 459             self.balance_label.show_balance()
 460         else:
 461             quote_text = self.create_quote_text(amount * bitcoin(1))
 462             if quote_text:
 463                 self.balance_label.set_amount_text(quote_text)
 464                 self.balance_label.show_amount()
 465             else:
 466                 self.balance_label.show_balance()
 467
 468     def create_quote_text(self, btc_balance):
 469         """Return a string copy of the amount fiat currency the
 470         user has in bitcoins."""
 471         quote_currency = self.quote_currencies[0]
 472         quote_balance = self.exchanger.exchange(btc_balance, quote_currency)
 473         if quote_balance is None:
 474             quote_text = ""
 475         else:
 476             quote_text = "%.2f %s" % ((quote_balance / bitcoin(1)),
 477                                       quote_currency)
 478         return quote_text
 479
 480     def send(self):
 481         if self.actuator.send(self.address_input.text(),
 482                               self.amount_input.text(), self):
 483             self.address_input.setText("")
 484             self.amount_input.setText("")
 485
 486     def check_button_status(self):
 487         """Check that the bitcoin address is valid and that something
 488         is entered in the amount before making the send button clickable."""
 489         try:
 490             value = D(str(self.amount_input.text())) * 10**8
 491         except decimal.InvalidOperation:
 492             value = None
 493         # self.address_input.property(...) returns a qVariant, not a bool.
 494         # The == is needed to properly invoke a comparison.
 495         if (self.address_input.property("isValid") == True and
 496             value is not None and 0 < value <= self.btc_balance):
 497             self.send_button.setDisabled(False)
 498         else:
 499             self.send_button.setDisabled(True)
 500
 501     def address_field_changed(self, address):
 502         # label or alias, with address in brackets
 503         match2 = re.match("(.*?)\s*\<([1-9A-HJ-NP-Za-km-z]{26,})\>",
 504                           address)
 505         if match2:
 506           address = match2.group(2)
 507           self.address_input.setText(address)
 508
 509         if self.actuator.is_valid(address):
 510             self.check_button_status()
 511             self.address_input.setProperty("isValid", True)
 512             self.recompute_style(self.address_input)
 513         else:
 514             self.send_button.setDisabled(True)
 515             self.address_input.setProperty("isValid", False)
 516             self.recompute_style(self.address_input)
 517
 518         if len(address) == 0:
 519             self.address_input.setProperty("isValid", None)
 520             self.recompute_style(self.address_input)
 521
 522     def recompute_style(self, element):
 523         self.style().unpolish(element)
 524         self.style().polish(element)
 525
 526     def copy_address(self):
 527         receive_popup = ReceivePopup(self.receive_button)
 528         self.actuator.copy_address(receive_popup)
 529
 530     def update_completions(self, completions):
 531         self.address_completions.setStringList(completions)
 532
 533
 534     def update_history(self, tx_history):
 535         from util import format_satoshis, age
 536
 537         self.history_list.empty()
 538
 539         for item in tx_history[-10:]:
 540             tx_hash, conf, is_mine, value, fee, balance, timestamp = item
 541             label = self.actuator.wallet.get_label(tx_hash)[0]
 542             #amount = D(value) / 10**8
 543             v_str = format_satoshis(value, True)
 544             self.history_list.append(label, v_str, age(timestamp))
 545
 546     def acceptbit(self):
 547         self.actuator.acceptbit(self.quote_currencies[0])
 548
 549     def the_website(self):
 550         webbrowser.open("http://electrum-desktop.com")
 551
 552     def show_about(self):
 553         QMessageBox.about(self, "Electrum",
 554             _("Electrum's focus is speed, with low resource usage and simplifying Bitcoin. You do not need to perform regular backups, because your wallet can be recovered from a secret phrase that you can memorize or write on paper. Startup times are instant because it operates in conjuction with high-performance servers that handle the most complicated parts of the Bitcoin system.\n\nSend donations to 1JwTMv4GWaPdf931N6LNPJeZBfZgZJ3zX1"))
 555
 556     def show_report_bug(self):
 557         QMessageBox.information(self, "Electrum - " + _("Reporting Bugs"),
 558             _("Please report any bugs as issues on github: https://github.com/spesmilo/electrum/issues"))
 559
 560     def show_history(self, toggle_state):
 561         if toggle_state:
 562             self.main_layout.setRowMinimumHeight(3,200)
 563             self.history_list.show()
 564         else:
 565             self.main_layout.setRowMinimumHeight(3,0)
 566             self.history_list.hide()
 567
 568     def backup_wallet(self):
 569         try:
 570           folderName = QFileDialog.getExistingDirectory(QWidget(), 'Select folder to save a copy of your wallet to', os.path.expanduser('~/'))
 571           if folderName:
 572             sourceFile = util.user_dir() + '/electrum.dat'
 573             shutil.copy2(sourceFile, str(folderName))
 574             QMessageBox.information(None,"Wallet backup created", "A copy of your wallet file was created in '%s'" % str(folderName))
 575         except (IOError, os.error), reason:
 576           QMessageBox.critical(None,"Unable to create backup", "Electrum was unable copy your wallet file to the specified location.\n" + str(reason))
 577
 578
 579
 580
 581 class BalanceLabel(QLabel):
 582
 583     SHOW_CONNECTING = 1
 584     SHOW_BALANCE = 2
 585     SHOW_AMOUNT = 3
 586
 587     def __init__(self, change_quote_currency, parent=None):
 588         super(QLabel, self).__init__(_("Connecting..."), parent)
 589         self.change_quote_currency = change_quote_currency
 590         self.state = self.SHOW_CONNECTING
 591         self.balance_text = ""
 592         self.amount_text = ""
 593
 594     def mousePressEvent(self, event):
 595         """Change the fiat currency selection if window background is clicked."""
 596         if self.state != self.SHOW_CONNECTING:
 597             self.change_quote_currency()
 598
 599     def set_balance_text(self, btc_balance, quote_text):
 600         """Set the amount of bitcoins in the gui."""
 601         if self.state == self.SHOW_CONNECTING:
 602             self.state = self.SHOW_BALANCE
 603         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)
 604         if self.state == self.SHOW_BALANCE:
 605             self.setText(self.balance_text)
 606
 607     def set_amount_text(self, quote_text):
 608         self.amount_text = "<span style='font-size: 10pt'>%s</span>" % quote_text
 609         if self.state == self.SHOW_AMOUNT:
 610             self.setText(self.amount_text)
 611
 612     def show_balance(self):
 613         if self.state == self.SHOW_AMOUNT:
 614             self.state = self.SHOW_BALANCE
 615             self.setText(self.balance_text)
 616
 617     def show_amount(self):
 618         if self.state == self.SHOW_BALANCE:
 619             self.state = self.SHOW_AMOUNT
 620             self.setText(self.amount_text)
 621
 622 def ok_cancel_buttons(dialog):
 623     row_layout = QHBoxLayout()
 624     row_layout.addStretch(1)
 625     ok_button = QPushButton(_("OK"))
 626     row_layout.addWidget(ok_button)
 627     ok_button.clicked.connect(dialog.accept)
 628     cancel_button = QPushButton(_("Cancel"))
 629     row_layout.addWidget(cancel_button)
 630     cancel_button.clicked.connect(dialog.reject)
 631     return row_layout
 632
 633 class PasswordDialog(QDialog):
 634
 635     def __init__(self, parent):
 636         super(QDialog, self).__init__(parent)
 637
 638         self.setModal(True)
 639
 640         self.password_input = QLineEdit()
 641         self.password_input.setEchoMode(QLineEdit.Password)
 642
 643         main_layout = QVBoxLayout(self)
 644         message = _('Please enter your password')
 645         main_layout.addWidget(QLabel(message))
 646
 647         grid = QGridLayout()
 648         grid.setSpacing(8)
 649         grid.addWidget(QLabel(_('Password')), 1, 0)
 650         grid.addWidget(self.password_input, 1, 1)
 651         main_layout.addLayout(grid)
 652
 653         main_layout.addLayout(ok_cancel_buttons(self))
 654         self.setLayout(main_layout)
 655
 656     def run(self):
 657         if not self.exec_():
 658             return
 659         return unicode(self.password_input.text())
 660
 661 class ReceivePopup(QDialog):
 662
 663     def leaveEvent(self, event):
 664         self.close()
 665
 666     def setup(self, address):
 667         label = QLabel(_("Copied your Bitcoin address to the clipboard!"))
 668         address_display = QLineEdit(address)
 669         address_display.setReadOnly(True)
 670         resize_line_edit_width(address_display, address)
 671
 672         main_layout = QVBoxLayout(self)
 673         main_layout.addWidget(label)
 674         main_layout.addWidget(address_display)
 675
 676         self.setMouseTracking(True)
 677         self.setWindowTitle("Electrum - " + _("Receive Bitcoin payment"))
 678         self.setWindowFlags(Qt.Window|Qt.FramelessWindowHint|
 679                             Qt.MSWindowsFixedSizeDialogHint)
 680         self.layout().setSizeConstraint(QLayout.SetFixedSize)
 681         #self.setFrameStyle(QFrame.WinPanel|QFrame.Raised)
 682         #self.setAlignment(Qt.AlignCenter)
 683
 684     def popup(self):
 685         parent = self.parent()
 686         top_left_pos = parent.mapToGlobal(parent.rect().bottomLeft())
 687         self.move(top_left_pos)
 688         center_mouse_pos = self.mapToGlobal(self.rect().center())
 689         QCursor.setPos(center_mouse_pos)
 690         self.show()
 691
 692 class MiniActuator:
 693     """Initialize the definitions relating to themes and
 694     sending/recieving bitcoins."""
 695
 696
 697     def __init__(self, wallet):
 698         """Retrieve the gui theme used in previous session."""
 699         self.wallet = wallet
 700         self.theme_name = self.wallet.config.get('litegui_theme','Cleanlook')
 701         self.themes = load_theme_paths()
 702
 703     def load_theme(self):
 704         """Load theme retrieved from wallet file."""
 705         try:
 706             theme_prefix, theme_path = self.themes[self.theme_name]
 707         except KeyError:
 708             util.print_error("Theme not found!", self.theme_name)
 709             return
 710         QDir.setCurrent(os.path.join(theme_prefix, theme_path))
 711         with open(rsrc("style.css")) as style_file:
 712             qApp.setStyleSheet(style_file.read())
 713
 714     def theme_names(self):
 715         """Sort themes."""
 716         return sorted(self.themes.keys())
 717
 718     def selected_theme(self):
 719         """Select theme."""
 720         return self.theme_name
 721
 722     def change_theme(self, theme_name):
 723         """Change theme."""
 724         self.theme_name = theme_name
 725         self.wallet.config.set_key('litegui_theme',theme_name)
 726         self.load_theme()
 727
 728     def set_configured_currency(self, set_quote_currency):
 729         """Set the inital fiat currency conversion country (USD/EUR/GBP) in
 730         the GUI to what it was set to in the wallet."""
 731         currency = self.wallet.config.get('conversion_currency')
 732         # currency can be none when Electrum is used for the first
 733         # time and no setting has been created yet.
 734         if currency is not None:
 735             set_quote_currency(currency)
 736
 737     def set_config_currency(self, conversion_currency):
 738         """Change the wallet fiat currency country."""
 739         self.wallet.config.set_key('conversion_currency',conversion_currency,True)
 740
 741     def copy_address(self, receive_popup):
 742         """Copy the wallet addresses into the client."""
 743         addrs = [addr for addr in self.wallet.all_addresses()
 744                  if not self.wallet.is_change(addr)]
 745         # Select most recent addresses from gap limit
 746         addrs = addrs[-self.wallet.gap_limit:]
 747         copied_address = random.choice(addrs)
 748         qApp.clipboard().setText(copied_address)
 749         receive_popup.setup(copied_address)
 750         receive_popup.popup()
 751
 752     def waiting_dialog(self, f):
 753         s = Timer()
 754         s.start()
 755         w = QDialog()
 756         w.resize(200, 70)
 757         w.setWindowTitle('Electrum')
 758         l = QLabel('Sending transaction, please wait.')
 759         vbox = QVBoxLayout()
 760         vbox.addWidget(l)
 761         w.setLayout(vbox)
 762         w.show()
 763         def ff():
 764             s = f()
 765             if s: l.setText(s)
 766             else: w.close()
 767         w.connect(s, QtCore.SIGNAL('timersignal'), ff)
 768         w.exec_()
 769         w.destroy()
 770
 771     def csv_transaction(self):
 772         try:
 773           fileName = QFileDialog.getSaveFileName(QWidget(), 'Select file to export your wallet transactions to', os.path.expanduser('~/'), "*.csv")
 774           if fileName:
 775             with open(fileName, "w+") as csvfile:
 776                 transaction = csv.writer(csvfile)
 777                 transaction.writerow(["transaction_hash","label", "confirmations", "value", "fee", "balance", "timestamp"])
 778                 for item in self.wallet.get_tx_history():
 779                     tx_hash, confirmations, is_mine, value, fee, balance, timestamp = item
 780                     if confirmations:
 781                         if timestamp is not None:
 782                             try:
 783                                 time_string = datetime.datetime.fromtimestamp(timestamp).isoformat(' ')[:-3]
 784                             except [RuntimeError, TypeError, NameError] as reason:
 785                                 time_string = "unknown"
 786                                 pass
 787                         else:
 788                           time_string = "unknown"
 789                     else:
 790                         time_string = "pending"
 791
 792                     if value is not None:
 793                         value_string = format_satoshis(value, True, self.wallet.num_zeros)
 794                     else:
 795                         value_string = '--'
 796
 797                     if fee is not None:
 798                         fee_string = format_satoshis(fee, True, self.wallet.num_zeros)
 799                     else:
 800                         fee_string = '0'
 801
 802                     if tx_hash:
 803                         label, is_default_label = self.wallet.get_label(tx_hash)
 804                     else:
 805                       label = ""
 806
 807                     balance_string = format_satoshis(balance, False, self.wallet.num_zeros)
 808                     transaction.writerow([tx_hash, label, confirmations, value_string, fee_string, balance_string, time_string])
 809                 QMessageBox.information(None,"CSV Export created", "Your CSV export has been succesfully created.")
 810         except (IOError, os.error), reason:
 811           QMessageBox.critical(None,"Unable to create csv", "Electrum was unable to produce a transaction export.\n" + str(reason))
 812
 813     def send(self, address, amount, parent_window):
 814         """Send bitcoins to the target address."""
 815         dest_address = self.fetch_destination(address)
 816
 817         if dest_address is None or not self.wallet.is_valid(dest_address):
 818             QMessageBox.warning(parent_window, _('Error'),
 819                 _('Invalid Bitcoin Address') + ':\n' + address, _('OK'))
 820             return False
 821
 822         convert_amount = lambda amount: \
 823             int(D(unicode(amount)) * bitcoin(1))
 824         amount = convert_amount(amount)
 825
 826         if self.wallet.use_encryption:
 827             password_dialog = PasswordDialog(parent_window)
 828             password = password_dialog.run()
 829             if not password:
 830                 return
 831         else:
 832             password = None
 833
 834         fee = 0
 835         # 0.1 BTC = 10000000
 836         if amount < bitcoin(1) / 10:
 837             # 0.001 BTC
 838             fee = bitcoin(1) / 1000
 839
 840         try:
 841             tx = self.wallet.mktx([(dest_address, amount)], "", password, fee)
 842         except BaseException as error:
 843             QMessageBox.warning(parent_window, _('Error'), str(error), _('OK'))
 844             return False
 845
 846         h = self.wallet.send_tx(tx)
 847
 848         self.waiting_dialog(lambda: False if self.wallet.tx_event.isSet() else _("Sending transaction, please wait..."))
 849
 850         status, message = self.wallet.receive_tx(h)
 851
 852         if not status:
 853             import tempfile
 854             dumpf = tempfile.NamedTemporaryFile(delete=False)
 855             dumpf.write(tx)
 856             dumpf.close()
 857             print "Dumped error tx to", dumpf.name
 858             QMessageBox.warning(parent_window, _('Error'), message, _('OK'))
 859             return False
 860
 861         TransactionWindow(message, self)
 862 #        QMessageBox.information(parent_window, '',
 863 #            _('Your transaction has been sent.') + '\n' + message, _('OK'))
 864         return True
 865
 866     def fetch_destination(self, address):
 867         recipient = unicode(address).strip()
 868
 869         # alias
 870         match1 = re.match("^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$",
 871                           recipient)
 872
 873         # label or alias, with address in brackets
 874         match2 = re.match("(.*?)\s*\<([1-9A-HJ-NP-Za-km-z]{26,})\>",
 875                           recipient)
 876
 877         if match1:
 878             dest_address = \
 879                 self.wallet.get_alias(recipient, True,
 880                                       self.show_message, self.question)
 881             return dest_address
 882         elif match2:
 883             return match2.group(2)
 884         else:
 885             return recipient
 886
 887     def is_valid(self, address):
 888         """Check if bitcoin address is valid."""
 889
 890         return self.wallet.is_valid(address)
 891
 892     def copy_master_public_key(self):
 893         master_pubkey = self.wallet.master_public_key
 894         qApp.clipboard().setText(master_pubkey)
 895         QMessageBox.information(None,"Copy succesful", "Your public master key has been copied to your clipboard.")
 896
 897
 898     def acceptbit(self, currency):
 899         master_pubkey = self.wallet.master_public_key
 900         url = "http://acceptbit.com/mpk/%s/%s" % (master_pubkey, currency)
 901         webbrowser.open(url)
 902
 903     def show_seed_dialog(self):
 904         gui_qt.ElectrumWindow.show_seed_dialog(self.wallet)
 905
 906 class MiniDriver(QObject):
 907
 908     INITIALIZING = 0
 909     CONNECTING = 1
 910     SYNCHRONIZING = 2
 911     READY = 3
 912
 913     def __init__(self, wallet, window):
 914         super(QObject, self).__init__()
 915
 916         self.wallet = wallet
 917         self.window = window
 918
 919         self.wallet.interface.register_callback('updated',self.update_callback)
 920         self.wallet.interface.register_callback('connected', self.update_callback)
 921         self.wallet.interface.register_callback('disconnected', self.update_callback)
 922
 923         self.state = None
 924
 925         self.initializing()
 926         self.connect(self, SIGNAL("updatesignal()"), self.update)
 927         self.update_callback()
 928
 929     # This is a hack to workaround that Qt does not like changing the
 930     # window properties from this other thread before the runloop has
 931     # been called from.
 932     def update_callback(self):
 933         self.emit(SIGNAL("updatesignal()"))
 934
 935     def update(self):
 936         if not self.wallet.interface:
 937             self.initializing()
 938         elif not self.wallet.interface.is_connected:
 939             self.connecting()
 940         elif not self.wallet.up_to_date:
 941             self.synchronizing()
 942         else:
 943             self.ready()
 944
 945         if self.wallet.up_to_date:
 946             self.update_balance()
 947             self.update_completions()
 948             self.update_history()
 949
 950     def initializing(self):
 951         if self.state == self.INITIALIZING:
 952             return
 953         self.state = self.INITIALIZING
 954         self.window.deactivate()
 955
 956     def connecting(self):
 957         if self.state == self.CONNECTING:
 958             return
 959         self.state = self.CONNECTING
 960         self.window.deactivate()
 961
 962     def synchronizing(self):
 963         if self.state == self.SYNCHRONIZING:
 964             return
 965         self.state = self.SYNCHRONIZING
 966         self.window.deactivate()
 967
 968     def ready(self):
 969         if self.state == self.READY:
 970             return
 971         self.state = self.READY
 972         self.window.activate()
 973
 974     def update_balance(self):
 975         conf_balance, unconf_balance = self.wallet.get_balance()
 976         balance = D(conf_balance + unconf_balance)
 977         self.window.set_balances(balance)
 978
 979     def update_completions(self):
 980         completions = []
 981         for addr, label in self.wallet.labels.items():
 982             if addr in self.wallet.addressbook:
 983                 completions.append("%s <%s>" % (label, addr))
 984         completions = completions + self.wallet.aliases.keys()
 985         self.window.update_completions(completions)
 986
 987     def update_history(self):
 988         tx_history = self.wallet.get_tx_history()
 989         self.window.update_history(tx_history)
 990
 991
 992 if __name__ == "__main__":
 993     app = QApplication(sys.argv)
 994     with open(rsrc("style.css")) as style_file:
 995         app.setStyleSheet(style_file.read())
 996     mini = MiniWindow()
 997     sys.exit(app.exec_())
 998