gui/qt/lite_window.py

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