gui/qt/main_window.py

   1 #!/usr/bin/env python
   2 #
   3 # Electrum - lightweight Bitcoin client
   4 # Copyright (C) 2012 thomasv@gitorious
   5 #
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
  18
  19 import sys, time, datetime, re, threading
  20 from electrum.i18n import _, set_language
  21 from electrum.util import print_error, print_msg
  22 import os.path, json, ast, traceback
  23 import webbrowser
  24 import shutil
  25 import StringIO
  26
  27
  28 import PyQt4
  29 from PyQt4.QtGui import *
  30 from PyQt4.QtCore import *
  31 import PyQt4.QtCore as QtCore
  32
  33 from electrum.bitcoin import MIN_RELAY_TX_FEE, is_valid
  34 from electrum.plugins import run_hook
  35
  36 import icons_rc
  37
  38 from electrum.wallet import format_satoshis
  39 from electrum import Transaction
  40 from electrum import mnemonic
  41 from electrum import util, bitcoin, commands, Interface, Wallet
  42 from electrum import SimpleConfig, Wallet, WalletStorage
  43
  44 from amountedit import AmountEdit, BTCAmountEdit, MyLineEdit
  45 from network_dialog import NetworkDialog
  46 from qrcodewidget import QRCodeWidget, QRDialog
  47 from qrtextedit import QRTextEdit
  48
  49 from decimal import Decimal
  50
  51 import platform
  52 import httplib
  53 import socket
  54 import webbrowser
  55 import csv
  56
  57 if platform.system() == 'Windows':
  58     MONOSPACE_FONT = 'Lucida Console'
  59 elif platform.system() == 'Darwin':
  60     MONOSPACE_FONT = 'Monaco'
  61 else:
  62     MONOSPACE_FONT = 'monospace'
  63
  64
  65
  66 # status of payment requests
  67 PR_UNPAID  = 0
  68 PR_EXPIRED = 1
  69 PR_SENT    = 2     # sent but not propagated
  70 PR_PAID    = 3     # send and propagated
  71 PR_ERROR   = 4     # could not parse
  72
  73
  74 from electrum import ELECTRUM_VERSION
  75 import re
  76
  77 from util import *
  78
  79
  80 def format_status(x):
  81     if x == PR_UNPAID:
  82         return _('Unpaid')
  83     elif x == PR_PAID:
  84         return _('Paid')
  85     elif x == PR_EXPIRED:
  86         return _('Expired')
  87
  88
  89 class StatusBarButton(QPushButton):
  90     def __init__(self, icon, tooltip, func):
  91         QPushButton.__init__(self, icon, '')
  92         self.setToolTip(tooltip)
  93         self.setFlat(True)
  94         self.setMaximumWidth(25)
  95         self.clicked.connect(func)
  96         self.func = func
  97         self.setIconSize(QSize(25,25))
  98
  99     def keyPressEvent(self, e):
 100         if e.key() == QtCore.Qt.Key_Return:
 101             apply(self.func,())
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112 default_column_widths = { "history":[40,140,350,140], "contacts":[350,330], "receive": [370,200,130] }
 113
 114 class ElectrumWindow(QMainWindow):
 115
 116
 117
 118     def __init__(self, config, network, gui_object):
 119         QMainWindow.__init__(self)
 120
 121         self.config = config
 122         self.network = network
 123         self.gui_object = gui_object
 124         self.tray = gui_object.tray
 125         self.go_lite = gui_object.go_lite
 126         self.lite = None
 127
 128         self.create_status_bar()
 129         self.need_update = threading.Event()
 130
 131         self.decimal_point = config.get('decimal_point', 5)
 132         self.num_zeros     = int(config.get('num_zeros',0))
 133         self.invoices      = {}
 134
 135         set_language(config.get('language'))
 136
 137         self.funds_error = False
 138         self.completions = QStringListModel()
 139
 140         self.tabs = tabs = QTabWidget(self)
 141         self.column_widths = self.config.get("column_widths_2", default_column_widths )
 142         tabs.addTab(self.create_history_tab(), _('History') )
 143         tabs.addTab(self.create_send_tab(), _('Send') )
 144         tabs.addTab(self.create_receive_tab(), _('Receive') )
 145         tabs.addTab(self.create_addresses_tab(), _('Addresses') )
 146         tabs.addTab(self.create_contacts_tab(), _('Contacts') )
 147         tabs.addTab(self.create_invoices_tab(), _('Invoices') )
 148         tabs.addTab(self.create_console_tab(), _('Console') )
 149         tabs.setMinimumSize(600, 400)
 150         tabs.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
 151         self.setCentralWidget(tabs)
 152
 153         g = self.config.get("winpos-qt",[100, 100, 840, 400])
 154         self.setGeometry(g[0], g[1], g[2], g[3])
 155         if self.config.get("is_maximized"):
 156             self.showMaximized()
 157
 158         self.setWindowIcon(QIcon(":icons/electrum.png"))
 159         self.init_menubar()
 160
 161         QShortcut(QKeySequence("Ctrl+W"), self, self.close)
 162         QShortcut(QKeySequence("Ctrl+Q"), self, self.close)
 163         QShortcut(QKeySequence("Ctrl+R"), self, self.update_wallet)
 164         QShortcut(QKeySequence("Ctrl+PgUp"), self, lambda: tabs.setCurrentIndex( (tabs.currentIndex() - 1 )%tabs.count() ))
 165         QShortcut(QKeySequence("Ctrl+PgDown"), self, lambda: tabs.setCurrentIndex( (tabs.currentIndex() + 1 )%tabs.count() ))
 166
 167         for i in range(tabs.count()):
 168             QShortcut(QKeySequence("Alt+" + str(i + 1)), self, lambda i=i: tabs.setCurrentIndex(i))
 169
 170         self.connect(self, QtCore.SIGNAL('update_status'), self.update_status)
 171         self.connect(self, QtCore.SIGNAL('banner_signal'), lambda: self.console.showMessage(self.network.banner) )
 172         self.connect(self, QtCore.SIGNAL('transaction_signal'), lambda: self.notify_transactions() )
 173         self.connect(self, QtCore.SIGNAL('payment_request_ok'), self.payment_request_ok)
 174         self.connect(self, QtCore.SIGNAL('payment_request_error'), self.payment_request_error)
 175
 176         self.history_list.setFocus(True)
 177
 178         # network callbacks
 179         if self.network:
 180             self.network.register_callback('updated', lambda: self.need_update.set())
 181             self.network.register_callback('banner', lambda: self.emit(QtCore.SIGNAL('banner_signal')))
 182             self.network.register_callback('disconnected', lambda: self.emit(QtCore.SIGNAL('update_status')))
 183             self.network.register_callback('disconnecting', lambda: self.emit(QtCore.SIGNAL('update_status')))
 184             self.network.register_callback('new_transaction', lambda: self.emit(QtCore.SIGNAL('transaction_signal')))
 185
 186             # set initial message
 187             self.console.showMessage(self.network.banner)
 188
 189         self.wallet = None
 190         self.payment_request = None
 191
 192     def update_account_selector(self):
 193         # account selector
 194         accounts = self.wallet.get_account_names()
 195         self.account_selector.clear()
 196         if len(accounts) > 1:
 197             self.account_selector.addItems([_("All accounts")] + accounts.values())
 198             self.account_selector.setCurrentIndex(0)
 199             self.account_selector.show()
 200         else:
 201             self.account_selector.hide()
 202
 203
 204     def load_wallet(self, wallet):
 205         import electrum
 206
 207         self.wallet = wallet
 208         self.update_wallet_format()
 209
 210         self.invoices = self.wallet.storage.get('invoices', {})
 211         self.accounts_expanded = self.wallet.storage.get('accounts_expanded',{})
 212         self.current_account = self.wallet.storage.get("current_account", None)
 213         title = 'Electrum ' + self.wallet.electrum_version + '  -  ' + self.wallet.storage.path
 214         if self.wallet.is_watching_only(): title += ' [%s]' % (_('watching only'))
 215         self.setWindowTitle( title )
 216         self.update_wallet()
 217         # Once GUI has been initialized check if we want to announce something since the callback has been called before the GUI was initialized
 218         self.notify_transactions()
 219         self.update_account_selector()
 220         # update menus
 221         self.new_account_menu.setEnabled(self.wallet.can_create_accounts())
 222         self.private_keys_menu.setEnabled(not self.wallet.is_watching_only())
 223         self.password_menu.setEnabled(not self.wallet.is_watching_only())
 224         self.seed_menu.setEnabled(self.wallet.has_seed())
 225         self.mpk_menu.setEnabled(self.wallet.is_deterministic())
 226         self.import_menu.setEnabled(self.wallet.can_import())
 227
 228         self.update_lock_icon()
 229         self.update_buttons_on_seed()
 230         self.update_console()
 231
 232         self.clear_receive_tab()
 233         self.update_receive_tab()
 234         run_hook('load_wallet', wallet)
 235
 236
 237     def update_wallet_format(self):
 238         # convert old-format imported keys
 239         if self.wallet.imported_keys:
 240             password = self.password_dialog(_("Please enter your password in order to update imported keys"))
 241             try:
 242                 self.wallet.convert_imported_keys(password)
 243             except:
 244                 self.show_message("error")
 245
 246
 247     def open_wallet(self):
 248         wallet_folder = self.wallet.storage.path
 249         filename = unicode( QFileDialog.getOpenFileName(self, "Select your wallet file", wallet_folder) )
 250         if not filename:
 251             return
 252
 253         storage = WalletStorage({'wallet_path': filename})
 254         if not storage.file_exists:
 255             self.show_message("file not found "+ filename)
 256             return
 257
 258         self.wallet.stop_threads()
 259
 260         # create new wallet
 261         wallet = Wallet(storage)
 262         wallet.start_threads(self.network)
 263
 264         self.load_wallet(wallet)
 265
 266
 267
 268     def backup_wallet(self):
 269         import shutil
 270         path = self.wallet.storage.path
 271         wallet_folder = os.path.dirname(path)
 272         filename = unicode( QFileDialog.getSaveFileName(self, _('Enter a filename for the copy of your wallet'), wallet_folder) )
 273         if not filename:
 274             return
 275
 276         new_path = os.path.join(wallet_folder, filename)
 277         if new_path != path:
 278             try:
 279                 shutil.copy2(path, new_path)
 280                 QMessageBox.information(None,"Wallet backup created", _("A copy of your wallet file was created in")+" '%s'" % str(new_path))
 281             except (IOError, os.error), reason:
 282                 QMessageBox.critical(None,"Unable to create backup", _("Electrum was unable to copy your wallet file to the specified location.")+"\n" + str(reason))
 283
 284
 285     def new_wallet(self):
 286         import installwizard
 287
 288         wallet_folder = os.path.dirname(self.wallet.storage.path)
 289         filename = unicode( QFileDialog.getSaveFileName(self, _('Enter a new file name'), wallet_folder) )
 290         if not filename:
 291             return
 292         filename = os.path.join(wallet_folder, filename)
 293
 294         storage = WalletStorage({'wallet_path': filename})
 295         if storage.file_exists:
 296             QMessageBox.critical(None, "Error", _("File exists"))
 297             return
 298
 299         wizard = installwizard.InstallWizard(self.config, self.network, storage)
 300         wallet = wizard.run('new')
 301         if wallet:
 302             self.load_wallet(wallet)
 303
 304
 305
 306     def init_menubar(self):
 307         menubar = QMenuBar()
 308
 309         file_menu = menubar.addMenu(_("&File"))
 310         file_menu.addAction(_("&Open"), self.open_wallet).setShortcut(QKeySequence.Open)
 311         file_menu.addAction(_("&New/Restore"), self.new_wallet).setShortcut(QKeySequence.New)
 312         file_menu.addAction(_("&Save Copy"), self.backup_wallet).setShortcut(QKeySequence.SaveAs)
 313         file_menu.addAction(_("&Quit"), self.close)
 314
 315         wallet_menu = menubar.addMenu(_("&Wallet"))
 316         wallet_menu.addAction(_("&New contact"), self.new_contact_dialog)
 317         self.new_account_menu = wallet_menu.addAction(_("&New account"), self.new_account_dialog)
 318
 319         wallet_menu.addSeparator()
 320
 321         self.password_menu = wallet_menu.addAction(_("&Password"), self.change_password_dialog)
 322         self.seed_menu = wallet_menu.addAction(_("&Seed"), self.show_seed_dialog)
 323         self.mpk_menu = wallet_menu.addAction(_("&Master Public Keys"), self.show_master_public_keys)
 324
 325         wallet_menu.addSeparator()
 326         labels_menu = wallet_menu.addMenu(_("&Labels"))
 327         labels_menu.addAction(_("&Import"), self.do_import_labels)
 328         labels_menu.addAction(_("&Export"), self.do_export_labels)
 329
 330         self.private_keys_menu = wallet_menu.addMenu(_("&Private keys"))
 331         self.private_keys_menu.addAction(_("&Sweep"), self.sweep_key_dialog)
 332         self.import_menu = self.private_keys_menu.addAction(_("&Import"), self.do_import_privkey)
 333         self.private_keys_menu.addAction(_("&Export"), self.export_privkeys_dialog)
 334         wallet_menu.addAction(_("&Export History"), self.export_history_dialog)
 335
 336         tools_menu = menubar.addMenu(_("&Tools"))
 337
 338         # Settings / Preferences are all reserved keywords in OSX using this as work around
 339         tools_menu.addAction(_("Electrum preferences") if sys.platform == 'darwin' else _("Preferences"), self.settings_dialog)
 340         tools_menu.addAction(_("&Network"), self.run_network_dialog)
 341         tools_menu.addAction(_("&Plugins"), self.plugins_dialog)
 342         tools_menu.addSeparator()
 343         tools_menu.addAction(_("&Sign/verify message"), self.sign_verify_message)
 344         tools_menu.addAction(_("&Encrypt/decrypt message"), self.encrypt_message)
 345         tools_menu.addSeparator()
 346
 347         csv_transaction_menu = tools_menu.addMenu(_("&Create transaction"))
 348         csv_transaction_menu.addAction(_("&From CSV file"), self.do_process_from_csv_file)
 349         csv_transaction_menu.addAction(_("&From CSV text"), self.do_process_from_csv_text)
 350
 351         raw_transaction_menu = tools_menu.addMenu(_("&Load transaction"))
 352         raw_transaction_menu.addAction(_("&From file"), self.do_process_from_file)
 353         raw_transaction_menu.addAction(_("&From text"), self.do_process_from_text)
 354         raw_transaction_menu.addAction(_("&From the blockchain"), self.do_process_from_txid)
 355         self.raw_transaction_menu = raw_transaction_menu
 356
 357         help_menu = menubar.addMenu(_("&Help"))
 358         help_menu.addAction(_("&About"), self.show_about)
 359         help_menu.addAction(_("&Official website"), lambda: webbrowser.open("http://electrum.org"))
 360         help_menu.addSeparator()
 361         help_menu.addAction(_("&Documentation"), lambda: webbrowser.open("http://electrum.org/documentation.html")).setShortcut(QKeySequence.HelpContents)
 362         help_menu.addAction(_("&Report Bug"), self.show_report_bug)
 363
 364         self.setMenuBar(menubar)
 365
 366     def show_about(self):
 367         QMessageBox.about(self, "Electrum",
 368             _("Version")+" %s" % (self.wallet.electrum_version) + "\n\n" + _("Electrum's focus is speed, with low resource usage and simplifying Bitcoin. You do not need to perform regular backups, because your wallet can be recovered from a secret phrase that you can memorize or write on paper. Startup times are instant because it operates in conjunction with high-performance servers that handle the most complicated parts of the Bitcoin system."))
 369
 370     def show_report_bug(self):
 371         QMessageBox.information(self, "Electrum - " + _("Reporting Bugs"),
 372             _("Please report any bugs as issues on github:")+" <a href=\"https://github.com/spesmilo/electrum/issues\">https://github.com/spesmilo/electrum/issues</a>")
 373
 374
 375     def notify_transactions(self):
 376         if not self.network or not self.network.is_connected():
 377             return
 378
 379         print_error("Notifying GUI")
 380         if len(self.network.pending_transactions_for_notifications) > 0:
 381             # Combine the transactions if there are more then three
 382             tx_amount = len(self.network.pending_transactions_for_notifications)
 383             if(tx_amount >= 3):
 384                 total_amount = 0
 385                 for tx in self.network.pending_transactions_for_notifications:
 386                     is_relevant, is_mine, v, fee = self.wallet.get_tx_value(tx)
 387                     if(v > 0):
 388                         total_amount += v
 389
 390                 self.notify(_("%(txs)s new transactions received. Total amount received in the new transactions %(amount)s %(unit)s") \
 391                                 % { 'txs' : tx_amount, 'amount' : self.format_amount(total_amount), 'unit' : self.base_unit()})
 392
 393                 self.network.pending_transactions_for_notifications = []
 394             else:
 395               for tx in self.network.pending_transactions_for_notifications:
 396                   if tx:
 397                       self.network.pending_transactions_for_notifications.remove(tx)
 398                       is_relevant, is_mine, v, fee = self.wallet.get_tx_value(tx)
 399                       if(v > 0):
 400                           self.notify(_("New transaction received. %(amount)s %(unit)s") % { 'amount' : self.format_amount(v), 'unit' : self.base_unit()})
 401
 402     def notify(self, message):
 403         self.tray.showMessage("Electrum", message, QSystemTrayIcon.Information, 20000)
 404
 405
 406
 407     # custom wrappers for getOpenFileName and getSaveFileName, that remember the path selected by the user
 408     def getOpenFileName(self, title, filter = ""):
 409         directory = self.config.get('io_dir', unicode(os.path.expanduser('~')))
 410         fileName = unicode( QFileDialog.getOpenFileName(self, title, directory, filter) )
 411         if fileName and directory != os.path.dirname(fileName):
 412             self.config.set_key('io_dir', os.path.dirname(fileName), True)
 413         return fileName
 414
 415     def getSaveFileName(self, title, filename, filter = ""):
 416         directory = self.config.get('io_dir', unicode(os.path.expanduser('~')))
 417         path = os.path.join( directory, filename )
 418         fileName = unicode( QFileDialog.getSaveFileName(self, title, path, filter) )
 419         if fileName and directory != os.path.dirname(fileName):
 420             self.config.set_key('io_dir', os.path.dirname(fileName), True)
 421         return fileName
 422
 423     def close(self):
 424         QMainWindow.close(self)
 425         run_hook('close_main_window')
 426
 427     def connect_slots(self, sender):
 428         self.connect(sender, QtCore.SIGNAL('timersignal'), self.timer_actions)
 429         self.previous_payto_e=''
 430
 431     def timer_actions(self):
 432         if self.need_update.is_set():
 433             self.update_wallet()
 434             self.need_update.clear()
 435
 436         run_hook('timer_actions')
 437
 438     def format_amount(self, x, is_diff=False, whitespaces=False):
 439         return format_satoshis(x, is_diff, self.num_zeros, self.decimal_point, whitespaces)
 440
 441
 442     def get_decimal_point(self):
 443         return self.decimal_point
 444
 445
 446     def base_unit(self):
 447         assert self.decimal_point in [5,8]
 448         return "BTC" if self.decimal_point == 8 else "mBTC"
 449
 450
 451     def update_status(self):
 452         if self.network is None or not self.network.is_running():
 453             text = _("Offline")
 454             icon = QIcon(":icons/status_disconnected.png")
 455
 456         elif self.network.is_connected():
 457             if not self.wallet.up_to_date:
 458                 text = _("Synchronizing...")
 459                 icon = QIcon(":icons/status_waiting.png")
 460             elif self.network.server_lag > 1:
 461                 text = _("Server is lagging (%d blocks)"%self.network.server_lag)
 462                 icon = QIcon(":icons/status_lagging.png")
 463             else:
 464                 c, u = self.wallet.get_account_balance(self.current_account)
 465                 text =  _( "Balance" ) + ": %s "%( self.format_amount(c) ) + self.base_unit()
 466                 if u: text +=  " [%s unconfirmed]"%( self.format_amount(u,True).strip() )
 467
 468                 # append fiat balance and price from exchange rate plugin
 469                 r = {}
 470                 run_hook('get_fiat_status_text', c+u, r)
 471                 quote = r.get(0)
 472                 if quote:
 473                     text += "%s"%quote
 474
 475                 self.tray.setToolTip(text)
 476                 icon = QIcon(":icons/status_connected.png")
 477         else:
 478             text = _("Not connected")
 479             icon = QIcon(":icons/status_disconnected.png")
 480
 481         self.balance_label.setText(text)
 482         self.status_button.setIcon( icon )
 483
 484
 485     def update_wallet(self):
 486         self.update_status()
 487         if self.wallet.up_to_date or not self.network or not self.network.is_connected():
 488             self.update_history_tab()
 489             self.update_receive_tab()
 490             self.update_address_tab()
 491             self.update_contacts_tab()
 492             self.update_completions()
 493             self.update_invoices_tab()
 494
 495
 496     def create_history_tab(self):
 497         self.history_list = l = MyTreeWidget(self)
 498         l.setColumnCount(5)
 499         for i,width in enumerate(self.column_widths['history']):
 500             l.setColumnWidth(i, width)
 501         l.setHeaderLabels( [ '', _('Date'), _('Description') , _('Amount'), _('Balance')] )
 502         l.itemDoubleClicked.connect(self.tx_label_clicked)
 503         l.itemChanged.connect(self.tx_label_changed)
 504         l.customContextMenuRequested.connect(self.create_history_menu)
 505         return l
 506
 507
 508     def create_history_menu(self, position):
 509         self.history_list.selectedIndexes()
 510         item = self.history_list.currentItem()
 511         be = self.config.get('block_explorer', 'Blockchain.info')
 512         if be == 'Blockchain.info':
 513             block_explorer = 'https://blockchain.info/tx/'
 514         elif be == 'Blockr.io':
 515             block_explorer = 'https://blockr.io/tx/info/'
 516         elif be == 'Insight.is':
 517             block_explorer = 'http://live.insight.is/tx/'
 518         if not item: return
 519         tx_hash = str(item.data(0, Qt.UserRole).toString())
 520         if not tx_hash: return
 521         menu = QMenu()
 522         menu.addAction(_("Copy ID to Clipboard"), lambda: self.app.clipboard().setText(tx_hash))
 523         menu.addAction(_("Details"), lambda: self.show_transaction(self.wallet.transactions.get(tx_hash)))
 524         menu.addAction(_("Edit description"), lambda: self.tx_label_clicked(item,2))
 525         menu.addAction(_("View on block explorer"), lambda: webbrowser.open(block_explorer + tx_hash))
 526         menu.exec_(self.contacts_list.viewport().mapToGlobal(position))
 527
 528
 529     def show_transaction(self, tx):
 530         import transaction_dialog
 531         d = transaction_dialog.TxDialog(tx, self)
 532         d.exec_()
 533
 534     def tx_label_clicked(self, item, column):
 535         if column==2 and item.isSelected():
 536             self.is_edit=True
 537             item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 538             self.history_list.editItem( item, column )
 539             item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 540             self.is_edit=False
 541
 542     def tx_label_changed(self, item, column):
 543         if self.is_edit:
 544             return
 545         self.is_edit=True
 546         tx_hash = str(item.data(0, Qt.UserRole).toString())
 547         tx = self.wallet.transactions.get(tx_hash)
 548         text = unicode( item.text(2) )
 549         self.wallet.set_label(tx_hash, text)
 550         if text:
 551             item.setForeground(2, QBrush(QColor('black')))
 552         else:
 553             text = self.wallet.get_default_label(tx_hash)
 554             item.setText(2, text)
 555             item.setForeground(2, QBrush(QColor('gray')))
 556         self.is_edit=False
 557
 558
 559     def edit_label(self, is_recv):
 560         l = self.receive_list if is_recv else self.contacts_list
 561         item = l.currentItem()
 562         item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 563         l.editItem( item, 1 )
 564         item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 565
 566
 567
 568     def address_label_clicked(self, item, column, l, column_addr, column_label):
 569         if column == column_label and item.isSelected():
 570             is_editable = item.data(0, 32).toBool()
 571             if not is_editable:
 572                 return
 573             addr = unicode( item.text(column_addr) )
 574             label = unicode( item.text(column_label) )
 575             item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 576             l.editItem( item, column )
 577             item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 578
 579
 580     def address_label_changed(self, item, column, l, column_addr, column_label):
 581         if column == column_label:
 582             addr = unicode( item.text(column_addr) )
 583             text = unicode( item.text(column_label) )
 584             is_editable = item.data(0, 32).toBool()
 585             if not is_editable:
 586                 return
 587
 588             changed = self.wallet.set_label(addr, text)
 589             if changed:
 590                 self.update_history_tab()
 591                 self.update_completions()
 592
 593             self.current_item_changed(item)
 594
 595         run_hook('item_changed', item, column)
 596
 597
 598     def current_item_changed(self, a):
 599         run_hook('current_item_changed', a)
 600
 601
 602
 603     def update_history_tab(self):
 604
 605         self.history_list.clear()
 606         for item in self.wallet.get_tx_history(self.current_account):
 607             tx_hash, conf, is_mine, value, fee, balance, timestamp = item
 608             time_str = _("unknown")
 609             if conf > 0:
 610                 try:
 611                     time_str = datetime.datetime.fromtimestamp( timestamp).isoformat(' ')[:-3]
 612                 except Exception:
 613                     time_str = _("error")
 614
 615             if conf == -1:
 616                 time_str = 'unverified'
 617                 icon = QIcon(":icons/unconfirmed.png")
 618             elif conf == 0:
 619                 time_str = 'pending'
 620                 icon = QIcon(":icons/unconfirmed.png")
 621             elif conf < 6:
 622                 icon = QIcon(":icons/clock%d.png"%conf)
 623             else:
 624                 icon = QIcon(":icons/confirmed.png")
 625
 626             if value is not None:
 627                 v_str = self.format_amount(value, True, whitespaces=True)
 628             else:
 629                 v_str = '--'
 630
 631             balance_str = self.format_amount(balance, whitespaces=True)
 632
 633             if tx_hash:
 634                 label, is_default_label = self.wallet.get_label(tx_hash)
 635             else:
 636                 label = _('Pruned transaction outputs')
 637                 is_default_label = False
 638
 639             item = QTreeWidgetItem( [ '', time_str, label, v_str, balance_str] )
 640             item.setFont(2, QFont(MONOSPACE_FONT))
 641             item.setFont(3, QFont(MONOSPACE_FONT))
 642             item.setFont(4, QFont(MONOSPACE_FONT))
 643             if value < 0:
 644                 item.setForeground(3, QBrush(QColor("#BC1E1E")))
 645             if tx_hash:
 646                 item.setData(0, Qt.UserRole, tx_hash)
 647                 item.setToolTip(0, "%d %s\nTxId:%s" % (conf, _('Confirmations'), tx_hash) )
 648             if is_default_label:
 649                 item.setForeground(2, QBrush(QColor('grey')))
 650
 651             item.setIcon(0, icon)
 652             self.history_list.insertTopLevelItem(0,item)
 653
 654
 655         self.history_list.setCurrentItem(self.history_list.topLevelItem(0))
 656         run_hook('history_tab_update')
 657
 658
 659     def create_receive_tab(self):
 660         w = QWidget()
 661         grid = QGridLayout(w)
 662         grid.setColumnMinimumWidth(3, 300)
 663         grid.setColumnStretch(5, 1)
 664
 665         self.receive_address_e = QLineEdit()
 666         self.receive_address_e.setReadOnly(True)
 667         grid.addWidget(QLabel(_('Receiving address')), 0, 0)
 668         grid.addWidget(self.receive_address_e, 0, 1, 1, 3)
 669         self.receive_address_e.textChanged.connect(self.update_receive_qr)
 670
 671         self.receive_message_e = QLineEdit()
 672         grid.addWidget(QLabel(_('Message')), 1, 0)
 673         grid.addWidget(self.receive_message_e, 1, 1, 1, 3)
 674         self.receive_message_e.textChanged.connect(self.update_receive_qr)
 675
 676         self.receive_amount_e = BTCAmountEdit(self.get_decimal_point)
 677         grid.addWidget(QLabel(_('Requested amount')), 2, 0)
 678         grid.addWidget(self.receive_amount_e, 2, 1, 1, 2)
 679         self.receive_amount_e.textChanged.connect(self.update_receive_qr)
 680
 681         self.save_request_button = QPushButton(_('Save'))
 682         self.save_request_button.clicked.connect(self.save_payment_request)
 683         grid.addWidget(self.save_request_button, 3, 1)
 684         clear_button = QPushButton(_('New'))
 685         clear_button.clicked.connect(self.clear_receive_tab)
 686         grid.addWidget(clear_button, 3, 2)
 687         grid.setRowStretch(4, 1)
 688
 689         self.receive_qr = QRCodeWidget(fixedSize=200)
 690         grid.addWidget(self.receive_qr, 0, 4, 5, 2)
 691
 692         grid.setRowStretch(5, 1)
 693
 694         self.receive_requests_label = QLabel(_('Saved Requests'))
 695         self.receive_list = MyTreeWidget(self)
 696         self.receive_list.customContextMenuRequested.connect(self.receive_list_menu)
 697         self.receive_list.currentItemChanged.connect(self.receive_item_changed)
 698         self.receive_list.itemClicked.connect(self.receive_item_changed)
 699         self.receive_list.setHeaderLabels( [_('Address'), _('Message'), _('Amount')] )
 700         self.receive_list.setColumnWidth(0, 340)
 701         h = self.receive_list.header()
 702         h.setStretchLastSection(False)
 703         h.setResizeMode(1, QHeaderView.Stretch)
 704
 705         grid.addWidget(self.receive_requests_label, 6, 0)
 706         grid.addWidget(self.receive_list, 7, 0, 1, 6)
 707         return w
 708
 709     def receive_item_changed(self, item):
 710         if item is None:
 711             return
 712         addr = str(item.text(0))
 713         amount, message = self.receive_requests[addr]
 714         self.receive_address_e.setText(addr)
 715         self.receive_message_e.setText(message)
 716         self.receive_amount_e.setAmount(amount)
 717
 718
 719     def receive_list_delete(self, item):
 720         addr = str(item.text(0))
 721         self.receive_requests.pop(addr)
 722         self.update_receive_tab()
 723         self.clear_receive_tab()
 724
 725     def receive_list_menu(self, position):
 726         item = self.receive_list.itemAt(position)
 727         menu = QMenu()
 728         menu.addAction(_("Delete"), lambda: self.receive_list_delete(item))
 729         menu.exec_(self.receive_list.viewport().mapToGlobal(position))
 730
 731     def save_payment_request(self):
 732         addr = str(self.receive_address_e.text())
 733         amount = self.receive_amount_e.get_amount()
 734         message = str(self.receive_message_e.text())
 735         if not message and not amount:
 736             QMessageBox.warning(self, _('Error'), _('No message or amount'), _('OK'))
 737             return
 738         self.receive_requests = self.wallet.storage.get('receive_requests',{})
 739         self.receive_requests[addr] = (amount, message)
 740         self.wallet.storage.put('receive_requests', self.receive_requests)
 741         self.update_receive_tab()
 742
 743     def clear_receive_tab(self):
 744         self.receive_requests = self.wallet.storage.get('receive_requests',{})
 745         domain = self.wallet.get_account_addresses(self.current_account, include_change=False)
 746         for addr in domain:
 747             if not self.wallet.address_is_old(addr) and addr not in self.receive_requests.keys():
 748                 break
 749         else:
 750             addr = ""
 751         self.receive_address_e.setText(addr)
 752         self.receive_message_e.setText('')
 753         self.receive_amount_e.setAmount(None)
 754
 755     def receive_at(self, addr):
 756         if not bitcoin.is_address(addr):
 757             return
 758         self.tabs.setCurrentIndex(2)
 759         self.receive_address_e.setText(addr)
 760
 761     def update_receive_tab(self):
 762         self.receive_requests = self.wallet.storage.get('receive_requests',{})
 763         b = len(self.receive_requests) > 0
 764         self.receive_list.setVisible(b)
 765         self.receive_requests_label.setVisible(b)
 766
 767         self.receive_list.clear()
 768         for address, v in self.receive_requests.items():
 769             amount, message = v
 770             item = QTreeWidgetItem( [ address, message, self.format_amount(amount) if amount else ""] )
 771             item.setFont(0, QFont(MONOSPACE_FONT))
 772             self.receive_list.addTopLevelItem(item)
 773
 774
 775     def update_receive_qr(self):
 776         import urlparse, urllib
 777         addr = str(self.receive_address_e.text())
 778         amount = self.receive_amount_e.get_amount()
 779         message = unicode(self.receive_message_e.text()).encode('utf8')
 780         self.save_request_button.setEnabled((amount is not None) or (message != ""))
 781         if addr:
 782             query = []
 783             if amount:
 784                 query.append('amount=%s'%format_satoshis(amount))
 785             if message:
 786                 query.append('message=%s'%urllib.quote(message))
 787             p = urlparse.ParseResult(scheme='bitcoin', netloc='', path=addr, params='', query='&'.join(query), fragment='')
 788             url = urlparse.urlunparse(p)
 789         else:
 790             url = ""
 791         self.receive_qr.setData(url)
 792         run_hook('update_receive_qr', addr, amount, message, url)
 793
 794
 795     def create_send_tab(self):
 796         w = QWidget()
 797
 798         self.send_grid = grid = QGridLayout(w)
 799         grid.setSpacing(8)
 800         grid.setColumnMinimumWidth(3,300)
 801         grid.setColumnStretch(5,1)
 802         grid.setRowStretch(8, 1)
 803
 804         from paytoedit import PayToEdit
 805         self.amount_e = BTCAmountEdit(self.get_decimal_point)
 806         self.payto_e = PayToEdit(self)
 807         self.payto_help = HelpButton(_('Recipient of the funds.') + '\n\n' + _('You may enter a Bitcoin address, a label from your list of contacts (a list of completions will be proposed), or an alias (email-like address that forwards to a Bitcoin address)'))
 808         grid.addWidget(QLabel(_('Pay to')), 1, 0)
 809         grid.addWidget(self.payto_e, 1, 1, 1, 3)
 810         grid.addWidget(self.payto_help, 1, 4)
 811
 812         completer = QCompleter()
 813         completer.setCaseSensitivity(False)
 814         self.payto_e.setCompleter(completer)
 815         completer.setModel(self.completions)
 816
 817         self.message_e = MyLineEdit()
 818         self.message_help = HelpButton(_('Description of the transaction (not mandatory).') + '\n\n' + _('The description is not sent to the recipient of the funds. It is stored in your wallet file, and displayed in the \'History\' tab.'))
 819         grid.addWidget(QLabel(_('Description')), 2, 0)
 820         grid.addWidget(self.message_e, 2, 1, 1, 3)
 821         grid.addWidget(self.message_help, 2, 4)
 822
 823         self.from_label = QLabel(_('From'))
 824         grid.addWidget(self.from_label, 3, 0)
 825         self.from_list = MyTreeWidget(self)
 826         self.from_list.setColumnCount(2)
 827         self.from_list.setColumnWidth(0, 350)
 828         self.from_list.setColumnWidth(1, 50)
 829         self.from_list.setHeaderHidden(True)
 830         self.from_list.setMaximumHeight(80)
 831         self.from_list.setContextMenuPolicy(Qt.CustomContextMenu)
 832         self.from_list.customContextMenuRequested.connect(self.from_list_menu)
 833         grid.addWidget(self.from_list, 3, 1, 1, 3)
 834         self.set_pay_from([])
 835
 836         self.amount_help = HelpButton(_('Amount to be sent.') + '\n\n' \
 837                                       + _('The amount will be displayed in red if you do not have enough funds in your wallet. Note that if you have frozen some of your addresses, the available funds will be lower than your total balance.') \
 838                                       + '\n\n' + _('Keyboard shortcut: type "!" to send all your coins.'))
 839         grid.addWidget(QLabel(_('Amount')), 4, 0)
 840         grid.addWidget(self.amount_e, 4, 1, 1, 2)
 841         grid.addWidget(self.amount_help, 4, 3)
 842
 843         self.fee_e = BTCAmountEdit(self.get_decimal_point)
 844         grid.addWidget(QLabel(_('Fee')), 5, 0)
 845         grid.addWidget(self.fee_e, 5, 1, 1, 2)
 846         grid.addWidget(HelpButton(
 847                 _('Bitcoin transactions are in general not free. A transaction fee is paid by the sender of the funds.') + '\n\n'\
 848                     + _('The amount of fee can be decided freely by the sender. However, transactions with low fees take more time to be processed.') + '\n\n'\
 849                     + _('A suggested fee is automatically added to this field. You may override it. The suggested fee increases with the size of the transaction.')), 5, 3)
 850
 851         self.send_button = EnterButton(_("Send"), self.do_send)
 852         grid.addWidget(self.send_button, 6, 1)
 853
 854         b = EnterButton(_("Clear"), self.do_clear)
 855         grid.addWidget(b, 6, 2)
 856
 857         self.payto_sig = QLabel('')
 858         grid.addWidget(self.payto_sig, 7, 0, 1, 4)
 859
 860         #QShortcut(QKeySequence("Up"), w, w.focusPreviousChild)
 861         #QShortcut(QKeySequence("Down"), w, w.focusNextChild)
 862         w.setLayout(grid)
 863
 864         def entry_changed( is_fee ):
 865             self.funds_error = False
 866
 867             if self.amount_e.is_shortcut:
 868                 self.amount_e.is_shortcut = False
 869                 sendable = self.get_sendable_balance()
 870                 # there is only one output because we are completely spending inputs
 871                 inputs, total, fee = self.wallet.choose_tx_inputs( sendable, 0, 1, coins = self.get_coins())
 872                 fee = self.wallet.estimated_fee(inputs, 1)
 873                 amount = total - fee
 874                 self.amount_e.setAmount(amount)
 875                 self.fee_e.setAmount(fee)
 876                 return
 877
 878             amount = self.amount_e.get_amount()
 879             fee = self.fee_e.get_amount()
 880
 881             if not is_fee: fee = None
 882             if amount is None:
 883                 return
 884             # assume that there will be 2 outputs (one for change)
 885             inputs, total, fee = self.wallet.choose_tx_inputs(amount, fee, 2, coins = self.get_coins())
 886             if not is_fee:
 887                 self.fee_e.setAmount(fee)
 888             if inputs:
 889                 palette = QPalette()
 890                 palette.setColor(self.amount_e.foregroundRole(), QColor('black'))
 891                 text = ""
 892             else:
 893                 palette = QPalette()
 894                 palette.setColor(self.amount_e.foregroundRole(), QColor('red'))
 895                 self.funds_error = True
 896                 text = _( "Not enough funds" )
 897                 c, u = self.wallet.get_frozen_balance()
 898                 if c+u: text += ' (' + self.format_amount(c+u).strip() + ' ' + self.base_unit() + ' ' +_("are frozen") + ')'
 899
 900             self.statusBar().showMessage(text)
 901             self.amount_e.setPalette(palette)
 902             self.fee_e.setPalette(palette)
 903
 904         self.amount_e.textChanged.connect(lambda: entry_changed(False) )
 905         self.fee_e.textChanged.connect(lambda: entry_changed(True) )
 906
 907         run_hook('create_send_tab', grid)
 908         return w
 909
 910     def from_list_delete(self, item):
 911         i = self.from_list.indexOfTopLevelItem(item)
 912         self.pay_from.pop(i)
 913         self.redraw_from_list()
 914
 915     def from_list_menu(self, position):
 916         item = self.from_list.itemAt(position)
 917         menu = QMenu()
 918         menu.addAction(_("Remove"), lambda: self.from_list_delete(item))
 919         menu.exec_(self.from_list.viewport().mapToGlobal(position))
 920
 921     def set_pay_from(self, domain = None):
 922         self.pay_from = [] if domain == [] else self.wallet.get_unspent_coins(domain)
 923         self.redraw_from_list()
 924
 925     def redraw_from_list(self):
 926         self.from_list.clear()
 927         self.from_label.setHidden(len(self.pay_from) == 0)
 928         self.from_list.setHidden(len(self.pay_from) == 0)
 929
 930         def format(x):
 931             h = x.get('prevout_hash')
 932             return h[0:8] + '...' + h[-8:] + ":%d"%x.get('prevout_n') + u'\t' + "%s"%x.get('address')
 933
 934         for item in self.pay_from:
 935             self.from_list.addTopLevelItem(QTreeWidgetItem( [format(item), self.format_amount(item['value']) ]))
 936
 937     def update_completions(self):
 938         l = []
 939         for addr,label in self.wallet.labels.items():
 940             if addr in self.wallet.addressbook:
 941                 l.append( label + '  <' + addr + '>')
 942
 943         run_hook('update_completions', l)
 944         self.completions.setStringList(l)
 945
 946
 947     def protected(func):
 948         return lambda s, *args: s.do_protect(func, args)
 949
 950
 951     def read_send_tab(self):
 952
 953         if self.payment_request and self.payment_request.has_expired():
 954             QMessageBox.warning(self, _('Error'), _('Payment request has expired'), _('OK'))
 955             return
 956
 957         label = unicode( self.message_e.text() )
 958
 959         if self.payment_request:
 960             outputs = self.payment_request.get_outputs()
 961         else:
 962             outputs = self.payto_e.get_outputs()
 963
 964         if not outputs:
 965             QMessageBox.warning(self, _('Error'), _('No outputs'), _('OK'))
 966             return
 967
 968         for addr, x in outputs:
 969             if addr is None or not bitcoin.is_address(addr):
 970                 QMessageBox.warning(self, _('Error'), _('Invalid Bitcoin Address'), _('OK'))
 971                 return
 972             if x is None:
 973                 QMessageBox.warning(self, _('Error'), _('Invalid Amount'), _('OK'))
 974                 return
 975
 976         amount = sum(map(lambda x:x[1], outputs))
 977
 978         fee = self.fee_e.get_amount()
 979         if fee is None:
 980             QMessageBox.warning(self, _('Error'), _('Invalid Fee'), _('OK'))
 981             return
 982
 983         confirm_amount = self.config.get('confirm_amount', 100000000)
 984         if amount >= confirm_amount:
 985             o = '\n'.join(map(lambda x:x[0], outputs))
 986             if not self.question(_("send %(amount)s to %(address)s?")%{ 'amount' : self.format_amount(amount) + ' '+ self.base_unit(), 'address' : o}):
 987                 return
 988
 989         confirm_fee = self.config.get('confirm_fee', 100000)
 990         if fee >= confirm_fee:
 991             if not self.question(_("The fee for this transaction seems unusually high.\nAre you really sure you want to pay %(fee)s in fees?")%{ 'fee' : self.format_amount(fee) + ' '+ self.base_unit()}):
 992                 return
 993
 994         coins = self.get_coins()
 995         return outputs, fee, label, coins
 996
 997
 998     def do_send(self):
 999         r = self.read_send_tab()
1000         if not r:
1001             return
1002         outputs, fee, label, coins = r
1003         self.send_tx(outputs, fee, label, coins)
1004
1005
1006     @protected
1007     def send_tx(self, outputs, fee, label, coins, password):
1008         self.send_button.setDisabled(True)
1009
1010         # first, create an unsigned tx
1011         try:
1012             tx = self.wallet.make_unsigned_transaction(outputs, fee, None, coins = coins)
1013             tx.error = None
1014         except Exception as e:
1015             traceback.print_exc(file=sys.stdout)
1016             self.show_message(str(e))
1017             self.send_button.setDisabled(False)
1018             return
1019
1020         # call hook to see if plugin needs gui interaction
1021         run_hook('send_tx', tx)
1022
1023         # sign the tx
1024         def sign_thread():
1025             time.sleep(0.1)
1026             keypairs = {}
1027             self.wallet.add_keypairs_from_wallet(tx, keypairs, password)
1028             self.wallet.sign_transaction(tx, keypairs, password)
1029             return tx, fee, label
1030
1031         def sign_done(tx, fee, label):
1032             if tx.error:
1033                 self.show_message(tx.error)
1034                 self.send_button.setDisabled(False)
1035                 return
1036             if tx.requires_fee(self.wallet.verifier) and fee < MIN_RELAY_TX_FEE:
1037                 QMessageBox.warning(self, _('Error'), _("This transaction requires a higher fee, or it will not be propagated by the network."), _('OK'))
1038                 self.send_button.setDisabled(False)
1039                 return
1040             if label:
1041                 self.wallet.set_label(tx.hash(), label)
1042
1043             if not tx.is_complete() or self.config.get('show_before_broadcast'):
1044                 self.show_transaction(tx)
1045                 self.do_clear()
1046                 self.send_button.setDisabled(False)
1047                 return
1048
1049             self.broadcast_transaction(tx)
1050
1051         self.waiting_dialog = WaitingDialog(self, 'Signing..', sign_thread, sign_done)
1052         self.waiting_dialog.start()
1053
1054
1055
1056     def broadcast_transaction(self, tx):
1057
1058         def broadcast_thread():
1059             pr = self.payment_request
1060             if pr is None:
1061                 return self.wallet.sendtx(tx)
1062
1063             if pr.has_expired():
1064                 self.payment_request = None
1065                 return False, _("Payment request has expired")
1066
1067             status, msg =  self.wallet.sendtx(tx)
1068             if not status:
1069                 return False, msg
1070
1071             self.invoices[pr.get_id()] = (pr.get_domain(), pr.get_memo(), pr.get_amount(), pr.get_expiration_date(), PR_PAID, tx.hash())
1072             self.wallet.storage.put('invoices', self.invoices)
1073             self.update_invoices_tab()
1074             self.payment_request = None
1075             refund_address = self.wallet.addresses()[0]
1076             ack_status, ack_msg = pr.send_ack(str(tx), refund_address)
1077             if ack_status:
1078                 msg = ack_msg
1079
1080             return status, msg
1081
1082         def broadcast_done(status, msg):
1083             if status:
1084                 QMessageBox.information(self, '', _('Payment sent.') + '\n' + msg, _('OK'))
1085                 self.do_clear()
1086             else:
1087                 QMessageBox.warning(self, _('Error'), msg, _('OK'))
1088             self.send_button.setDisabled(False)
1089
1090         self.waiting_dialog = WaitingDialog(self, 'Broadcasting..', broadcast_thread, broadcast_done)
1091         self.waiting_dialog.start()
1092
1093
1094
1095     def prepare_for_payment_request(self):
1096         self.tabs.setCurrentIndex(1)
1097         self.payto_e.is_pr = True
1098         for e in [self.payto_e, self.amount_e, self.message_e]:
1099             e.setFrozen(True)
1100         for h in [self.payto_help, self.amount_help, self.message_help]:
1101             h.hide()
1102         self.payto_e.setText(_("please wait..."))
1103         return True
1104
1105     def payment_request_ok(self):
1106         pr = self.payment_request
1107         pr_id = pr.get_id()
1108         if pr_id not in self.invoices:
1109             self.invoices[pr_id] = (pr.get_domain(), pr.get_memo(), pr.get_amount(), pr.get_expiration_date(), PR_UNPAID, None)
1110             self.wallet.storage.put('invoices', self.invoices)
1111             self.update_invoices_tab()
1112         else:
1113             print_error('invoice already in list')
1114
1115         status = self.invoices[pr_id][4]
1116         if status == PR_PAID:
1117             self.do_clear()
1118             self.show_message("invoice already paid")
1119             self.payment_request = None
1120             return
1121
1122         self.payto_help.show()
1123         self.payto_help.set_alt(lambda: self.show_pr_details(pr))
1124
1125         if not pr.has_expired():
1126             self.payto_e.setGreen()
1127         else:
1128             self.payto_e.setExpired()
1129
1130         self.payto_e.setText(pr.domain)
1131         self.amount_e.setText(self.format_amount(pr.get_amount()))
1132         self.message_e.setText(pr.get_memo())
1133
1134     def payment_request_error(self):
1135         self.do_clear()
1136         self.show_message(self.payment_request.error)
1137         self.payment_request = None
1138
1139     def pay_from_URI(self,URI):
1140         if not URI:
1141             return
1142         address, amount, label, message, request_url = util.parse_URI(URI)
1143         try:
1144             address, amount, label, message, request_url = util.parse_URI(URI)
1145         except Exception as e:
1146             QMessageBox.warning(self, _('Error'), _('Invalid bitcoin URI:') + '\n' + str(e), _('OK'))
1147             return
1148
1149         self.tabs.setCurrentIndex(1)
1150
1151         if not request_url:
1152             if label:
1153                 if self.wallet.labels.get(address) != label:
1154                     if self.question(_('Save label "%s" for address %s ?'%(label,address))):
1155                         if address not in self.wallet.addressbook and not self.wallet.is_mine(address):
1156                             self.wallet.addressbook.append(address)
1157                             self.wallet.set_label(address, label)
1158             else:
1159                 label = self.wallet.labels.get(address)
1160             if address:
1161                 self.payto_e.setText(label + '  <'+ address +'>' if label else address)
1162             if message:
1163                 self.message_e.setText(message)
1164             if amount:
1165                 self.amount_e.setAmount(amount)
1166             return
1167
1168         from electrum import paymentrequest
1169         def payment_request():
1170             self.payment_request = paymentrequest.PaymentRequest(self.config)
1171             self.payment_request.read(request_url)
1172             if self.payment_request.verify():
1173                 self.emit(SIGNAL('payment_request_ok'))
1174             else:
1175                 self.emit(SIGNAL('payment_request_error'))
1176
1177         self.pr_thread = threading.Thread(target=payment_request).start()
1178         self.prepare_for_payment_request()
1179
1180
1181
1182     def do_clear(self):
1183         self.payto_e.is_pr = False
1184         self.payto_sig.setVisible(False)
1185         for e in [self.payto_e, self.message_e, self.amount_e, self.fee_e]:
1186             e.setText('')
1187             e.setFrozen(False)
1188
1189         for h in [self.payto_help, self.amount_help, self.message_help]:
1190             h.show()
1191
1192         self.payto_help.set_alt(None)
1193         self.set_pay_from([])
1194         self.update_status()
1195
1196
1197
1198     def set_addrs_frozen(self,addrs,freeze):
1199         for addr in addrs:
1200             if not addr: continue
1201             if addr in self.wallet.frozen_addresses and not freeze:
1202                 self.wallet.unfreeze(addr)
1203             elif addr not in self.wallet.frozen_addresses and freeze:
1204                 self.wallet.freeze(addr)
1205         self.update_address_tab()
1206
1207
1208
1209     def create_list_tab(self, headers):
1210         "generic tab creation method"
1211         l = MyTreeWidget(self)
1212         l.setColumnCount( len(headers) )
1213         l.setHeaderLabels( headers )
1214
1215         w = QWidget()
1216         vbox = QVBoxLayout()
1217         w.setLayout(vbox)
1218
1219         vbox.setMargin(0)
1220         vbox.setSpacing(0)
1221         vbox.addWidget(l)
1222         buttons = QWidget()
1223         vbox.addWidget(buttons)
1224
1225         return l, w
1226
1227
1228     def create_addresses_tab(self):
1229         l, w = self.create_list_tab([ _('Address'), _('Label'), _('Balance'), _('Tx')])
1230         for i,width in enumerate(self.column_widths['receive']):
1231             l.setColumnWidth(i, width)
1232         l.setContextMenuPolicy(Qt.CustomContextMenu)
1233         l.customContextMenuRequested.connect(self.create_receive_menu)
1234         l.setSelectionMode(QAbstractItemView.ExtendedSelection)
1235         l.itemDoubleClicked.connect(lambda a, b: self.address_label_clicked(a,b,l,0,1))
1236         l.itemChanged.connect(lambda a,b: self.address_label_changed(a,b,l,0,1))
1237         l.currentItemChanged.connect(lambda a,b: self.current_item_changed(a))
1238         self.address_list = l
1239         return w
1240
1241
1242
1243
1244     def save_column_widths(self):
1245         self.column_widths["receive"] = []
1246         for i in range(self.address_list.columnCount() -1):
1247             self.column_widths["receive"].append(self.address_list.columnWidth(i))
1248
1249         self.column_widths["history"] = []
1250         for i in range(self.history_list.columnCount() - 1):
1251             self.column_widths["history"].append(self.history_list.columnWidth(i))
1252
1253         self.column_widths["contacts"] = []
1254         for i in range(self.contacts_list.columnCount() - 1):
1255             self.column_widths["contacts"].append(self.contacts_list.columnWidth(i))
1256
1257         self.config.set_key("column_widths_2", self.column_widths, True)
1258
1259
1260     def create_contacts_tab(self):
1261         l, w = self.create_list_tab([_('Address'), _('Label'), _('Tx')])
1262         l.setContextMenuPolicy(Qt.CustomContextMenu)
1263         l.customContextMenuRequested.connect(self.create_contact_menu)
1264         for i,width in enumerate(self.column_widths['contacts']):
1265             l.setColumnWidth(i, width)
1266         l.itemDoubleClicked.connect(lambda a, b: self.address_label_clicked(a,b,l,0,1))
1267         l.itemChanged.connect(lambda a,b: self.address_label_changed(a,b,l,0,1))
1268         self.contacts_list = l
1269         return w
1270
1271
1272     def create_invoices_tab(self):
1273         l, w = self.create_list_tab([_('Requestor'), _('Memo'),_('Amount'), _('Status')])
1274         l.setColumnWidth(0, 150)
1275         h = l.header()
1276         h.setStretchLastSection(False)
1277         h.setResizeMode(1, QHeaderView.Stretch)
1278         l.setContextMenuPolicy(Qt.CustomContextMenu)
1279         l.customContextMenuRequested.connect(self.create_invoice_menu)
1280         self.invoices_list = l
1281         return w
1282
1283     def update_invoices_tab(self):
1284         invoices = self.wallet.storage.get('invoices', {})
1285         l = self.invoices_list
1286         l.clear()
1287         for key, value in invoices.items():
1288             try:
1289                 domain, memo, amount, expiration_date, status, tx_hash = value
1290             except:
1291                 invoices.pop(key)
1292                 continue
1293             if status == PR_UNPAID and expiration_date and expiration_date < time.time():
1294                 status = PR_EXPIRED
1295             item = QTreeWidgetItem( [ domain, memo, self.format_amount(amount), format_status(status)] )
1296             l.addTopLevelItem(item)
1297
1298         l.setCurrentItem(l.topLevelItem(0))
1299
1300
1301
1302     def delete_imported_key(self, addr):
1303         if self.question(_("Do you want to remove")+" %s "%addr +_("from your wallet?")):
1304             self.wallet.delete_imported_key(addr)
1305             self.update_address_tab()
1306             self.update_history_tab()
1307
1308     def edit_account_label(self, k):
1309         text, ok = QInputDialog.getText(self, _('Rename account'), _('Name') + ':', text = self.wallet.labels.get(k,''))
1310         if ok:
1311             label = unicode(text)
1312             self.wallet.set_label(k,label)
1313             self.update_address_tab()
1314
1315     def account_set_expanded(self, item, k, b):
1316         item.setExpanded(b)
1317         self.accounts_expanded[k] = b
1318
1319     def create_account_menu(self, position, k, item):
1320         menu = QMenu()
1321         if item.isExpanded():
1322             menu.addAction(_("Minimize"), lambda: self.account_set_expanded(item, k, False))
1323         else:
1324             menu.addAction(_("Maximize"), lambda: self.account_set_expanded(item, k, True))
1325         menu.addAction(_("Rename"), lambda: self.edit_account_label(k))
1326         if self.wallet.seed_version > 4:
1327             menu.addAction(_("View details"), lambda: self.show_account_details(k))
1328         if self.wallet.account_is_pending(k):
1329             menu.addAction(_("Delete"), lambda: self.delete_pending_account(k))
1330         menu.exec_(self.address_list.viewport().mapToGlobal(position))
1331
1332     def delete_pending_account(self, k):
1333         self.wallet.delete_pending_account(k)
1334         self.update_address_tab()
1335
1336     def create_receive_menu(self, position):
1337         # fixme: this function apparently has a side effect.
1338         # if it is not called the menu pops up several times
1339         #self.address_list.selectedIndexes()
1340
1341         selected = self.address_list.selectedItems()
1342         multi_select = len(selected) > 1
1343         addrs = [unicode(item.text(0)) for item in selected]
1344         if not multi_select:
1345             item = self.address_list.itemAt(position)
1346             if not item: return
1347
1348             addr = addrs[0]
1349             if not is_valid(addr):
1350                 k = str(item.data(0,32).toString())
1351                 if k:
1352                     self.create_account_menu(position, k, item)
1353                 else:
1354                     item.setExpanded(not item.isExpanded())
1355                 return
1356
1357         menu = QMenu()
1358         if not multi_select:
1359             menu.addAction(_("Copy to clipboard"), lambda: self.app.clipboard().setText(addr))
1360             menu.addAction(_("Request payment"), lambda: self.receive_at(addr))
1361             menu.addAction(_("Edit label"), lambda: self.edit_label(True))
1362             menu.addAction(_("Public keys"), lambda: self.show_public_keys(addr))
1363             if not self.wallet.is_watching_only():
1364                 menu.addAction(_("Private key"), lambda: self.show_private_key(addr))
1365                 menu.addAction(_("Sign/verify message"), lambda: self.sign_verify_message(addr))
1366                 menu.addAction(_("Encrypt/decrypt message"), lambda: self.encrypt_message(addr))
1367             if self.wallet.is_imported(addr):
1368                 menu.addAction(_("Remove from wallet"), lambda: self.delete_imported_key(addr))
1369
1370         if any(addr not in self.wallet.frozen_addresses for addr in addrs):
1371             menu.addAction(_("Freeze"), lambda: self.set_addrs_frozen(addrs, True))
1372         if any(addr in self.wallet.frozen_addresses for addr in addrs):
1373             menu.addAction(_("Unfreeze"), lambda: self.set_addrs_frozen(addrs, False))
1374
1375         def can_send(addr):
1376             return addr not in self.wallet.frozen_addresses and self.wallet.get_addr_balance(addr) != (0, 0)
1377         if any(can_send(addr) for addr in addrs):
1378             menu.addAction(_("Send From"), lambda: self.send_from_addresses(addrs))
1379
1380         run_hook('receive_menu', menu, addrs)
1381         menu.exec_(self.address_list.viewport().mapToGlobal(position))
1382
1383
1384     def get_sendable_balance(self):
1385         return sum(map(lambda x:x['value'], self.get_coins()))
1386
1387
1388     def get_coins(self):
1389         if self.pay_from:
1390             return self.pay_from
1391         else:
1392             domain = self.wallet.get_account_addresses(self.current_account)
1393             for i in self.wallet.frozen_addresses:
1394                 if i in domain: domain.remove(i)
1395             return self.wallet.get_unspent_coins(domain)
1396
1397
1398     def send_from_addresses(self, addrs):
1399         self.set_pay_from( addrs )
1400         self.tabs.setCurrentIndex(1)
1401
1402
1403     def payto(self, addr):
1404         if not addr: return
1405         label = self.wallet.labels.get(addr)
1406         m_addr = label + '  <' + addr + '>' if label else addr
1407         self.tabs.setCurrentIndex(1)
1408         self.payto_e.setText(m_addr)
1409         self.amount_e.setFocus()
1410
1411
1412     def delete_contact(self, x):
1413         if self.question(_("Do you want to remove")+" %s "%x +_("from your list of contacts?")):
1414             self.wallet.delete_contact(x)
1415             self.wallet.set_label(x, None)
1416             self.update_history_tab()
1417             self.update_contacts_tab()
1418             self.update_completions()
1419
1420
1421     def create_contact_menu(self, position):
1422         item = self.contacts_list.itemAt(position)
1423         menu = QMenu()
1424         if not item:
1425             menu.addAction(_("New contact"), lambda: self.new_contact_dialog())
1426         else:
1427             addr = unicode(item.text(0))
1428             label = unicode(item.text(1))
1429             is_editable = item.data(0,32).toBool()
1430             payto_addr = item.data(0,33).toString()
1431             menu.addAction(_("Copy to Clipboard"), lambda: self.app.clipboard().setText(addr))
1432             menu.addAction(_("Pay to"), lambda: self.payto(payto_addr))
1433             menu.addAction(_("QR code"), lambda: self.show_qrcode("bitcoin:" + addr, _("Address")))
1434             if is_editable:
1435                 menu.addAction(_("Edit label"), lambda: self.edit_label(False))
1436                 menu.addAction(_("Delete"), lambda: self.delete_contact(addr))
1437
1438         run_hook('create_contact_menu', menu, item)
1439         menu.exec_(self.contacts_list.viewport().mapToGlobal(position))
1440
1441     def delete_invoice(self, key):
1442         self.invoices.pop(key)
1443         self.wallet.storage.put('invoices', self.invoices)
1444         self.update_invoices_tab()
1445
1446     def show_invoice(self, key):
1447         from electrum.paymentrequest import PaymentRequest
1448         domain, memo, value, expiration, status, tx_hash = self.invoices[key]
1449         pr = PaymentRequest(self.config)
1450         pr.read_file(key)
1451         pr.domain = domain
1452         pr.verify()
1453         self.show_pr_details(pr)
1454
1455     def show_pr_details(self, pr):
1456         msg = 'Domain: ' + pr.domain
1457         msg += '\nStatus: ' + pr.get_status()
1458         msg += '\nMemo: ' + pr.get_memo()
1459         msg += '\nPayment URL: ' + pr.payment_url
1460         msg += '\n\nOutputs:\n' + '\n'.join(map(lambda x: x[0] + ' ' + self.format_amount(x[1])+ self.base_unit(), pr.get_outputs()))
1461         QMessageBox.information(self, 'Invoice', msg , 'OK')
1462
1463     def do_pay_invoice(self, key):
1464         from electrum.paymentrequest import PaymentRequest
1465         domain, memo, value, expiration, status, tx_hash = self.invoices[key]
1466         pr = PaymentRequest(self.config)
1467         pr.read_file(key)
1468         pr.domain = domain
1469         self.payment_request = pr
1470         self.prepare_for_payment_request()
1471         if pr.verify():
1472             self.payment_request_ok()
1473         else:
1474             self.payment_request_error()
1475
1476
1477     def create_invoice_menu(self, position):
1478         item = self.invoices_list.itemAt(position)
1479         if not item:
1480             return
1481         k = self.invoices_list.indexOfTopLevelItem(item)
1482         key = self.invoices.keys()[k]
1483         domain, memo, value, expiration, status, tx_hash = self.invoices[key]
1484         menu = QMenu()
1485         menu.addAction(_("Details"), lambda: self.show_invoice(key))
1486         if status == PR_UNPAID:
1487             menu.addAction(_("Pay Now"), lambda: self.do_pay_invoice(key))
1488         menu.addAction(_("Delete"), lambda: self.delete_invoice(key))
1489         menu.exec_(self.invoices_list.viewport().mapToGlobal(position))
1490
1491
1492     def update_address_item(self, item):
1493         item.setFont(0, QFont(MONOSPACE_FONT))
1494         address = str(item.data(0,0).toString())
1495         label = self.wallet.labels.get(address,'')
1496         item.setData(1,0,label)
1497         item.setData(0,32, True) # is editable
1498
1499         run_hook('update_address_item', address, item)
1500
1501         if not self.wallet.is_mine(address): return
1502
1503         c, u = self.wallet.get_addr_balance(address)
1504         balance = self.format_amount(c + u)
1505         item.setData(2,0,balance)
1506
1507         if address in self.wallet.frozen_addresses:
1508             item.setBackgroundColor(0, QColor('lightblue'))
1509
1510
1511     def update_address_tab(self):
1512         l = self.address_list
1513         # extend the syntax for consistency
1514         l.addChild = l.addTopLevelItem
1515         l.insertChild = l.insertTopLevelItem
1516
1517         l.clear()
1518
1519         accounts = self.wallet.get_accounts()
1520         if self.current_account is None:
1521             account_items = sorted(accounts.items())
1522         else:
1523             account_items = [(self.current_account, accounts.get(self.current_account))]
1524
1525
1526         for k, account in account_items:
1527
1528             if len(accounts) > 1:
1529                 name = self.wallet.get_account_name(k)
1530                 c,u = self.wallet.get_account_balance(k)
1531                 account_item = QTreeWidgetItem( [ name, '', self.format_amount(c+u), ''] )
1532                 l.addTopLevelItem(account_item)
1533                 account_item.setExpanded(self.accounts_expanded.get(k, True))
1534                 account_item.setData(0, 32, k)
1535             else:
1536                 account_item = l
1537
1538             sequences = [0,1] if account.has_change() else [0]
1539             for is_change in sequences:
1540                 if len(sequences) > 1:
1541                     name = _("Receiving") if not is_change else _("Change")
1542                     seq_item = QTreeWidgetItem( [ name, '', '', '', ''] )
1543                     account_item.addChild(seq_item)
1544                     if not is_change:
1545                         seq_item.setExpanded(True)
1546                 else:
1547                     seq_item = account_item
1548
1549                 used_item = QTreeWidgetItem( [ _("Used"), '', '', '', ''] )
1550                 used_flag = False
1551
1552                 is_red = False
1553                 gap = 0
1554
1555                 for address in account.get_addresses(is_change):
1556
1557                     num, is_used = self.wallet.is_used(address)
1558                     if num == 0:
1559                         gap += 1
1560                         if gap > self.wallet.gap_limit:
1561                             is_red = True
1562                     else:
1563                         gap = 0
1564
1565                     item = QTreeWidgetItem( [ address, '', '', "%d"%num] )
1566                     self.update_address_item(item)
1567                     if is_red:
1568                         item.setBackgroundColor(1, QColor('red'))
1569
1570                     if is_used:
1571                         if not used_flag:
1572                             seq_item.insertChild(0,used_item)
1573                             used_flag = True
1574                         used_item.addChild(item)
1575                     else:
1576                         seq_item.addChild(item)
1577
1578         # we use column 1 because column 0 may be hidden
1579         l.setCurrentItem(l.topLevelItem(0),1)
1580
1581
1582     def update_contacts_tab(self):
1583         l = self.contacts_list
1584         l.clear()
1585
1586         for address in self.wallet.addressbook:
1587             label = self.wallet.labels.get(address,'')
1588             n = self.wallet.get_num_tx(address)
1589             item = QTreeWidgetItem( [ address, label, "%d"%n] )
1590             item.setFont(0, QFont(MONOSPACE_FONT))
1591             # 32 = label can be edited (bool)
1592             item.setData(0,32, True)
1593             # 33 = payto string
1594             item.setData(0,33, address)
1595             l.addTopLevelItem(item)
1596
1597         run_hook('update_contacts_tab', l)
1598         l.setCurrentItem(l.topLevelItem(0))
1599
1600
1601
1602     def create_console_tab(self):
1603         from console import Console
1604         self.console = console = Console()
1605         return console
1606
1607
1608     def update_console(self):
1609         console = self.console
1610         console.history = self.config.get("console-history",[])
1611         console.history_index = len(console.history)
1612
1613         console.updateNamespace({'wallet' : self.wallet, 'network' : self.network, 'gui':self})
1614         console.updateNamespace({'util' : util, 'bitcoin':bitcoin})
1615
1616         c = commands.Commands(self.wallet, self.network, lambda: self.console.set_json(True))
1617         methods = {}
1618         def mkfunc(f, method):
1619             return lambda *args: apply( f, (method, args, self.password_dialog ))
1620         for m in dir(c):
1621             if m[0]=='_' or m in ['network','wallet']: continue
1622             methods[m] = mkfunc(c._run, m)
1623
1624         console.updateNamespace(methods)
1625
1626
1627     def change_account(self,s):
1628         if s == _("All accounts"):
1629             self.current_account = None
1630         else:
1631             accounts = self.wallet.get_account_names()
1632             for k, v in accounts.items():
1633                 if v == s:
1634                     self.current_account = k
1635         self.update_history_tab()
1636         self.update_status()
1637         self.update_address_tab()
1638         self.update_receive_tab()
1639
1640     def create_status_bar(self):
1641
1642         sb = QStatusBar()
1643         sb.setFixedHeight(35)
1644         qtVersion = qVersion()
1645
1646         self.balance_label = QLabel("")
1647         sb.addWidget(self.balance_label)
1648
1649         from version_getter import UpdateLabel
1650         self.updatelabel = UpdateLabel(self.config, sb)
1651
1652         self.account_selector = QComboBox()
1653         self.account_selector.setSizeAdjustPolicy(QComboBox.AdjustToContents)
1654         self.connect(self.account_selector,SIGNAL("activated(QString)"),self.change_account)
1655         sb.addPermanentWidget(self.account_selector)
1656
1657         if (int(qtVersion[0]) >= 4 and int(qtVersion[2]) >= 7):
1658             sb.addPermanentWidget( StatusBarButton( QIcon(":icons/switchgui.png"), _("Switch to Lite Mode"), self.go_lite ) )
1659
1660         self.lock_icon = QIcon()
1661         self.password_button = StatusBarButton( self.lock_icon, _("Password"), self.change_password_dialog )
1662         sb.addPermanentWidget( self.password_button )
1663
1664         sb.addPermanentWidget( StatusBarButton( QIcon(":icons/preferences.png"), _("Preferences"), self.settings_dialog ) )
1665         self.seed_button = StatusBarButton( QIcon(":icons/seed.png"), _("Seed"), self.show_seed_dialog )
1666         sb.addPermanentWidget( self.seed_button )
1667         self.status_button = StatusBarButton( QIcon(":icons/status_disconnected.png"), _("Network"), self.run_network_dialog )
1668         sb.addPermanentWidget( self.status_button )
1669
1670         run_hook('create_status_bar', (sb,))
1671
1672         self.setStatusBar(sb)
1673
1674
1675     def update_lock_icon(self):
1676         icon = QIcon(":icons/lock.png") if self.wallet.use_encryption else QIcon(":icons/unlock.png")
1677         self.password_button.setIcon( icon )
1678
1679
1680     def update_buttons_on_seed(self):
1681         if self.wallet.has_seed():
1682            self.seed_button.show()
1683         else:
1684            self.seed_button.hide()
1685
1686         if not self.wallet.is_watching_only():
1687            self.password_button.show()
1688            self.send_button.setText(_("Send"))
1689         else:
1690            self.password_button.hide()
1691            self.send_button.setText(_("Create unsigned transaction"))
1692
1693
1694     def change_password_dialog(self):
1695         from password_dialog import PasswordDialog
1696         d = PasswordDialog(self.wallet, self)
1697         d.run()
1698         self.update_lock_icon()
1699
1700
1701     def new_contact_dialog(self):
1702
1703         d = QDialog(self)
1704         d.setWindowTitle(_("New Contact"))
1705         vbox = QVBoxLayout(d)
1706         vbox.addWidget(QLabel(_('New Contact')+':'))
1707
1708         grid = QGridLayout()
1709         line1 = QLineEdit()
1710         line2 = QLineEdit()
1711         grid.addWidget(QLabel(_("Address")), 1, 0)
1712         grid.addWidget(line1, 1, 1)
1713         grid.addWidget(QLabel(_("Name")), 2, 0)
1714         grid.addWidget(line2, 2, 1)
1715
1716         vbox.addLayout(grid)
1717         vbox.addLayout(ok_cancel_buttons(d))
1718
1719         if not d.exec_():
1720             return
1721
1722         address = str(line1.text())
1723         label = unicode(line2.text())
1724
1725         if not is_valid(address):
1726             QMessageBox.warning(self, _('Error'), _('Invalid Address'), _('OK'))
1727             return
1728
1729         self.wallet.add_contact(address)
1730         if label:
1731             self.wallet.set_label(address, label)
1732
1733         self.update_contacts_tab()
1734         self.update_history_tab()
1735         self.update_completions()
1736         self.tabs.setCurrentIndex(3)
1737
1738
1739     @protected
1740     def new_account_dialog(self, password):
1741
1742         dialog = QDialog(self)
1743         dialog.setModal(1)
1744         dialog.setWindowTitle(_("New Account"))
1745
1746         vbox = QVBoxLayout()
1747         vbox.addWidget(QLabel(_('Account name')+':'))
1748         e = QLineEdit()
1749         vbox.addWidget(e)
1750         msg = _("Note: Newly created accounts are 'pending' until they receive bitcoins.") + " " \
1751             + _("You will need to wait for 2 confirmations until the correct balance is displayed and more addresses are created for that account.")
1752         l = QLabel(msg)
1753         l.setWordWrap(True)
1754         vbox.addWidget(l)
1755
1756         vbox.addLayout(ok_cancel_buttons(dialog))
1757         dialog.setLayout(vbox)
1758         r = dialog.exec_()
1759         if not r: return
1760
1761         name = str(e.text())
1762         if not name: return
1763
1764         self.wallet.create_pending_account(name, password)
1765         self.update_address_tab()
1766         self.tabs.setCurrentIndex(2)
1767
1768
1769
1770
1771     def show_master_public_keys(self):
1772
1773         dialog = QDialog(self)
1774         dialog.setModal(1)
1775         dialog.setWindowTitle(_("Master Public Keys"))
1776
1777         main_layout = QGridLayout()
1778         mpk_dict = self.wallet.get_master_public_keys()
1779         i = 0
1780         for key, value in mpk_dict.items():
1781             main_layout.addWidget(QLabel(key), i, 0)
1782             mpk_text = QTextEdit()
1783             mpk_text.setReadOnly(True)
1784             mpk_text.setMaximumHeight(170)
1785             mpk_text.setText(value)
1786             main_layout.addWidget(mpk_text, i + 1, 0)
1787             i += 2
1788
1789         vbox = QVBoxLayout()
1790         vbox.addLayout(main_layout)
1791         vbox.addLayout(close_button(dialog))
1792
1793         dialog.setLayout(vbox)
1794         dialog.exec_()
1795
1796
1797     @protected
1798     def show_seed_dialog(self, password):
1799         if not self.wallet.has_seed():
1800             QMessageBox.information(self, _('Message'), _('This wallet has no seed'), _('OK'))
1801             return
1802
1803         try:
1804             mnemonic = self.wallet.get_mnemonic(password)
1805         except Exception:
1806             QMessageBox.warning(self, _('Error'), _('Incorrect Password'), _('OK'))
1807             return
1808         from seed_dialog import SeedDialog
1809         d = SeedDialog(self, mnemonic, self.wallet.has_imported_keys())
1810         d.exec_()
1811
1812
1813
1814     def show_qrcode(self, data, title = _("QR code")):
1815         if not data:
1816             return
1817         print_error("qrcode:", data)
1818         d = QRDialog(data, self, title)
1819         d.exec_()
1820
1821
1822     def do_protect(self, func, args):
1823         if self.wallet.use_encryption:
1824             password = self.password_dialog()
1825             if not password:
1826                 return
1827         else:
1828             password = None
1829
1830         if args != (False,):
1831             args = (self,) + args + (password,)
1832         else:
1833             args = (self,password)
1834         apply( func, args)
1835
1836
1837     def show_public_keys(self, address):
1838         if not address: return
1839         try:
1840             pubkey_list = self.wallet.get_public_keys(address)
1841         except Exception as e:
1842             traceback.print_exc(file=sys.stdout)
1843             self.show_message(str(e))
1844             return
1845
1846         d = QDialog(self)
1847         d.setMinimumSize(600, 200)
1848         d.setModal(1)
1849         vbox = QVBoxLayout()
1850         vbox.addWidget( QLabel(_("Address") + ': ' + address))
1851         vbox.addWidget( QLabel(_("Public key") + ':'))
1852         keys = QRTextEdit()
1853         keys.setReadOnly(True)
1854         keys.setText('\n'.join(pubkey_list))
1855         vbox.addWidget(keys)
1856         vbox.addLayout(close_button(d))
1857         d.setLayout(vbox)
1858         d.exec_()
1859
1860     @protected
1861     def show_private_key(self, address, password):
1862         if not address: return
1863         try:
1864             pk_list = self.wallet.get_private_key(address, password)
1865         except Exception as e:
1866             traceback.print_exc(file=sys.stdout)
1867             self.show_message(str(e))
1868             return
1869
1870         d = QDialog(self)
1871         d.setMinimumSize(600, 200)
1872         d.setModal(1)
1873         vbox = QVBoxLayout()
1874         vbox.addWidget( QLabel(_("Address") + ': ' + address))
1875         vbox.addWidget( QLabel(_("Private key") + ':'))
1876         keys = QRTextEdit()
1877         keys.setReadOnly(True)
1878         keys.setText('\n'.join(pk_list))
1879         vbox.addWidget(keys)
1880         vbox.addLayout(close_button(d))
1881         d.setLayout(vbox)
1882         d.exec_()
1883
1884
1885     @protected
1886     def do_sign(self, address, message, signature, password):
1887         message = unicode(message.toPlainText())
1888         message = message.encode('utf-8')
1889         try:
1890             sig = self.wallet.sign_message(str(address.text()), message, password)
1891             signature.setText(sig)
1892         except Exception as e:
1893             self.show_message(str(e))
1894
1895     def do_verify(self, address, message, signature):
1896         message = unicode(message.toPlainText())
1897         message = message.encode('utf-8')
1898         if bitcoin.verify_message(address.text(), str(signature.toPlainText()), message):
1899             self.show_message(_("Signature verified"))
1900         else:
1901             self.show_message(_("Error: wrong signature"))
1902
1903
1904     def sign_verify_message(self, address=''):
1905         d = QDialog(self)
1906         d.setModal(1)
1907         d.setWindowTitle(_('Sign/verify Message'))
1908         d.setMinimumSize(410, 290)
1909
1910         layout = QGridLayout(d)
1911
1912         message_e = QTextEdit()
1913         layout.addWidget(QLabel(_('Message')), 1, 0)
1914         layout.addWidget(message_e, 1, 1)
1915         layout.setRowStretch(2,3)
1916
1917         address_e = QLineEdit()
1918         address_e.setText(address)
1919         layout.addWidget(QLabel(_('Address')), 2, 0)
1920         layout.addWidget(address_e, 2, 1)
1921
1922         signature_e = QTextEdit()
1923         layout.addWidget(QLabel(_('Signature')), 3, 0)
1924         layout.addWidget(signature_e, 3, 1)
1925         layout.setRowStretch(3,1)
1926
1927         hbox = QHBoxLayout()
1928
1929         b = QPushButton(_("Sign"))
1930         b.clicked.connect(lambda: self.do_sign(address_e, message_e, signature_e))
1931         hbox.addWidget(b)
1932
1933         b = QPushButton(_("Verify"))
1934         b.clicked.connect(lambda: self.do_verify(address_e, message_e, signature_e))
1935         hbox.addWidget(b)
1936
1937         b = QPushButton(_("Close"))
1938         b.clicked.connect(d.accept)
1939         hbox.addWidget(b)
1940         layout.addLayout(hbox, 4, 1)
1941         d.exec_()
1942
1943
1944     @protected
1945     def do_decrypt(self, message_e, pubkey_e, encrypted_e, password):
1946         try:
1947             decrypted = self.wallet.decrypt_message(str(pubkey_e.text()), str(encrypted_e.toPlainText()), password)
1948             message_e.setText(decrypted)
1949         except Exception as e:
1950             self.show_message(str(e))
1951
1952
1953     def do_encrypt(self, message_e, pubkey_e, encrypted_e):
1954         message = unicode(message_e.toPlainText())
1955         message = message.encode('utf-8')
1956         try:
1957             encrypted = bitcoin.encrypt_message(message, str(pubkey_e.text()))
1958             encrypted_e.setText(encrypted)
1959         except Exception as e:
1960             self.show_message(str(e))
1961
1962
1963
1964     def encrypt_message(self, address = ''):
1965         d = QDialog(self)
1966         d.setModal(1)
1967         d.setWindowTitle(_('Encrypt/decrypt Message'))
1968         d.setMinimumSize(610, 490)
1969
1970         layout = QGridLayout(d)
1971
1972         message_e = QTextEdit()
1973         layout.addWidget(QLabel(_('Message')), 1, 0)
1974         layout.addWidget(message_e, 1, 1)
1975         layout.setRowStretch(2,3)
1976
1977         pubkey_e = QLineEdit()
1978         if address:
1979             pubkey = self.wallet.getpubkeys(address)[0]
1980             pubkey_e.setText(pubkey)
1981         layout.addWidget(QLabel(_('Public key')), 2, 0)
1982         layout.addWidget(pubkey_e, 2, 1)
1983
1984         encrypted_e = QTextEdit()
1985         layout.addWidget(QLabel(_('Encrypted')), 3, 0)
1986         layout.addWidget(encrypted_e, 3, 1)
1987         layout.setRowStretch(3,1)
1988
1989         hbox = QHBoxLayout()
1990         b = QPushButton(_("Encrypt"))
1991         b.clicked.connect(lambda: self.do_encrypt(message_e, pubkey_e, encrypted_e))
1992         hbox.addWidget(b)
1993
1994         b = QPushButton(_("Decrypt"))
1995         b.clicked.connect(lambda: self.do_decrypt(message_e, pubkey_e, encrypted_e))
1996         hbox.addWidget(b)
1997
1998         b = QPushButton(_("Close"))
1999         b.clicked.connect(d.accept)
2000         hbox.addWidget(b)
2001
2002         layout.addLayout(hbox, 4, 1)
2003         d.exec_()
2004
2005
2006     def question(self, msg):
2007         return QMessageBox.question(self, _('Message'), msg, QMessageBox.Yes | QMessageBox.No, QMessageBox.No) == QMessageBox.Yes
2008
2009     def show_message(self, msg):
2010         QMessageBox.information(self, _('Message'), msg, _('OK'))
2011
2012     def password_dialog(self, msg=None):
2013         d = QDialog(self)
2014         d.setModal(1)
2015         d.setWindowTitle(_("Enter Password"))
2016
2017         pw = QLineEdit()
2018         pw.setEchoMode(2)
2019
2020         vbox = QVBoxLayout()
2021         if not msg:
2022             msg = _('Please enter your password')
2023         vbox.addWidget(QLabel(msg))
2024
2025         grid = QGridLayout()
2026         grid.setSpacing(8)
2027         grid.addWidget(QLabel(_('Password')), 1, 0)
2028         grid.addWidget(pw, 1, 1)
2029         vbox.addLayout(grid)
2030
2031         vbox.addLayout(ok_cancel_buttons(d))
2032         d.setLayout(vbox)
2033
2034         run_hook('password_dialog', pw, grid, 1)
2035         if not d.exec_(): return
2036         return unicode(pw.text())
2037
2038
2039
2040
2041
2042
2043
2044
2045     def tx_from_text(self, txt):
2046         "json or raw hexadecimal"
2047         try:
2048             txt.decode('hex')
2049             tx = Transaction(txt)
2050             return tx
2051         except Exception:
2052             pass
2053
2054         try:
2055             tx_dict = json.loads(str(txt))
2056             assert "hex" in tx_dict.keys()
2057             tx = Transaction(tx_dict["hex"])
2058             if tx_dict.has_key("input_info"):
2059                 input_info = json.loads(tx_dict['input_info'])
2060                 tx.add_input_info(input_info)
2061             return tx
2062         except Exception:
2063             traceback.print_exc(file=sys.stdout)
2064             pass
2065
2066         QMessageBox.critical(None, _("Unable to parse transaction"), _("Electrum was unable to parse your transaction"))
2067
2068
2069
2070     def read_tx_from_file(self):
2071         fileName = self.getOpenFileName(_("Select your transaction file"), "*.txn")
2072         if not fileName:
2073             return
2074         try:
2075             with open(fileName, "r") as f:
2076                 file_content = f.read()
2077         except (ValueError, IOError, os.error), reason:
2078             QMessageBox.critical(None, _("Unable to read file or no transaction found"), _("Electrum was unable to open your transaction file") + "\n" + str(reason))
2079
2080         return self.tx_from_text(file_content)
2081
2082
2083     @protected
2084     def sign_raw_transaction(self, tx, input_info, password):
2085         try:
2086             self.wallet.signrawtransaction(tx, input_info, [], password)
2087         except Exception as e:
2088             QMessageBox.warning(self, _("Error"), str(e))
2089
2090     def do_process_from_text(self):
2091         text = text_dialog(self, _('Input raw transaction'), _("Transaction:"), _("Load transaction"))
2092         if not text:
2093             return
2094         tx = self.tx_from_text(text)
2095         if tx:
2096             self.show_transaction(tx)
2097
2098     def do_process_from_file(self):
2099         tx = self.read_tx_from_file()
2100         if tx:
2101             self.show_transaction(tx)
2102
2103     def do_process_from_txid(self):
2104         from electrum import transaction
2105         txid, ok = QInputDialog.getText(self, _('Lookup transaction'), _('Transaction ID') + ':')
2106         if ok and txid:
2107             r = self.network.synchronous_get([ ('blockchain.transaction.get',[str(txid)]) ])[0]
2108             if r:
2109                 tx = transaction.Transaction(r)
2110                 if tx:
2111                     self.show_transaction(tx)
2112                 else:
2113                     self.show_message("unknown transaction")
2114
2115     def do_process_from_csvReader(self, csvReader):
2116         outputs = []
2117         errors = []
2118         errtext = ""
2119         try:
2120             for position, row in enumerate(csvReader):
2121                 address = row[0]
2122                 if not is_valid(address):
2123                     errors.append((position, address))
2124                     continue
2125                 amount = Decimal(row[1])
2126                 amount = int(100000000*amount)
2127                 outputs.append((address, amount))
2128         except (ValueError, IOError, os.error), reason:
2129             QMessageBox.critical(None, _("Unable to read file or no transaction found"), _("Electrum was unable to open your transaction file") + "\n" + str(reason))
2130             return
2131         if errors != []:
2132             for x in errors:
2133                 errtext += "CSV Row " + str(x[0]+1) + ": " + x[1] + "\n"
2134             QMessageBox.critical(None, _("Invalid Addresses"), _("ABORTING! Invalid Addresses found:") + "\n\n" + errtext)
2135             return
2136
2137         try:
2138             tx = self.wallet.make_unsigned_transaction(outputs, None, None)
2139         except Exception as e:
2140             self.show_message(str(e))
2141             return
2142
2143         self.show_transaction(tx)
2144
2145     def do_process_from_csv_file(self):
2146         fileName = self.getOpenFileName(_("Select your transaction CSV"), "*.csv")
2147         if not fileName:
2148             return
2149         try:
2150             with open(fileName, "r") as f:
2151                 csvReader = csv.reader(f)
2152                 self.do_process_from_csvReader(csvReader)
2153         except (ValueError, IOError, os.error), reason:
2154             QMessageBox.critical(None, _("Unable to read file or no transaction found"), _("Electrum was unable to open your transaction file") + "\n" + str(reason))
2155             return
2156
2157     def do_process_from_csv_text(self):
2158         text = text_dialog(self, _('Input CSV'), _("Please enter a list of outputs.") + '\n' \
2159                                + _("Format: address, amount. One output per line"), _("Load CSV"))
2160         if not text:
2161             return
2162         f = StringIO.StringIO(text)
2163         csvReader = csv.reader(f)
2164         self.do_process_from_csvReader(csvReader)
2165
2166
2167
2168     @protected
2169     def export_privkeys_dialog(self, password):
2170         if self.wallet.is_watching_only():
2171             self.show_message(_("This is a watching-only wallet"))
2172             return
2173
2174         d = QDialog(self)
2175         d.setWindowTitle(_('Private keys'))
2176         d.setMinimumSize(850, 300)
2177         vbox = QVBoxLayout(d)
2178
2179         msg = "%s\n%s\n%s" % (_("WARNING: ALL your private keys are secret."),
2180                               _("Exposing a single private key can compromise your entire wallet!"),
2181                               _("In particular, DO NOT use 'redeem private key' services proposed by third parties."))
2182         vbox.addWidget(QLabel(msg))
2183
2184         e = QTextEdit()
2185         e.setReadOnly(True)
2186         vbox.addWidget(e)
2187
2188         defaultname = 'electrum-private-keys.csv'
2189         select_msg = _('Select file to export your private keys to')
2190         hbox, filename_e, csv_button = filename_field(self, self.config, defaultname, select_msg)
2191         vbox.addLayout(hbox)
2192
2193         h, b = ok_cancel_buttons2(d, _('Export'))
2194         b.setEnabled(False)
2195         vbox.addLayout(h)
2196
2197         private_keys = {}
2198         addresses = self.wallet.addresses(True)
2199         done = False
2200         def privkeys_thread():
2201             for addr in addresses:
2202                 time.sleep(0.1)
2203                 if done:
2204                     break
2205                 private_keys[addr] = "\n".join(self.wallet.get_private_key(addr, password))
2206                 d.emit(SIGNAL('computing_privkeys'))
2207             d.emit(SIGNAL('show_privkeys'))
2208
2209         def show_privkeys():
2210             s = "\n".join( map( lambda x: x[0] + "\t"+ x[1], private_keys.items()))
2211             e.setText(s)
2212             b.setEnabled(True)
2213
2214         d.connect(d, QtCore.SIGNAL('computing_privkeys'), lambda: e.setText("Please wait... %d/%d"%(len(private_keys),len(addresses))))
2215         d.connect(d, QtCore.SIGNAL('show_privkeys'), show_privkeys)
2216         threading.Thread(target=privkeys_thread).start()
2217
2218         if not d.exec_():
2219             done = True
2220             return
2221
2222         filename = filename_e.text()
2223         if not filename:
2224             return
2225
2226         try:
2227             self.do_export_privkeys(filename, private_keys, csv_button.isChecked())
2228         except (IOError, os.error), reason:
2229             export_error_label = _("Electrum was unable to produce a private key-export.")
2230             QMessageBox.critical(None, _("Unable to create csv"), export_error_label + "\n" + str(reason))
2231
2232         except Exception as e:
2233             self.show_message(str(e))
2234             return
2235
2236         self.show_message(_("Private keys exported."))
2237
2238
2239     def do_export_privkeys(self, fileName, pklist, is_csv):
2240         with open(fileName, "w+") as f:
2241             if is_csv:
2242                 transaction = csv.writer(f)
2243                 transaction.writerow(["address", "private_key"])
2244                 for addr, pk in pklist.items():
2245                     transaction.writerow(["%34s"%addr,pk])
2246             else:
2247                 import json
2248                 f.write(json.dumps(pklist, indent = 4))
2249
2250
2251     def do_import_labels(self):
2252         labelsFile = self.getOpenFileName(_("Open labels file"), "*.dat")
2253         if not labelsFile: return
2254         try:
2255             f = open(labelsFile, 'r')
2256             data = f.read()
2257             f.close()
2258             for key, value in json.loads(data).items():
2259                 self.wallet.set_label(key, value)
2260             QMessageBox.information(None, _("Labels imported"), _("Your labels were imported from")+" '%s'" % str(labelsFile))
2261         except (IOError, os.error), reason:
2262             QMessageBox.critical(None, _("Unable to import labels"), _("Electrum was unable to import your labels.")+"\n" + str(reason))
2263
2264
2265     def do_export_labels(self):
2266         labels = self.wallet.labels
2267         try:
2268             fileName = self.getSaveFileName(_("Select file to save your labels"), 'electrum_labels.dat', "*.dat")
2269             if fileName:
2270                 with open(fileName, 'w+') as f:
2271                     json.dump(labels, f)
2272                 QMessageBox.information(None, _("Labels exported"), _("Your labels where exported to")+" '%s'" % str(fileName))
2273         except (IOError, os.error), reason:
2274             QMessageBox.critical(None, _("Unable to export labels"), _("Electrum was unable to export your labels.")+"\n" + str(reason))
2275
2276
2277     def export_history_dialog(self):
2278
2279         d = QDialog(self)
2280         d.setWindowTitle(_('Export History'))
2281         d.setMinimumSize(400, 200)
2282         vbox = QVBoxLayout(d)
2283
2284         defaultname = os.path.expanduser('~/electrum-history.csv')
2285         select_msg = _('Select file to export your wallet transactions to')
2286
2287         hbox, filename_e, csv_button = filename_field(self, self.config, defaultname, select_msg)
2288         vbox.addLayout(hbox)
2289
2290         vbox.addStretch(1)
2291
2292         h, b = ok_cancel_buttons2(d, _('Export'))
2293         vbox.addLayout(h)
2294         if not d.exec_():
2295             return
2296
2297         filename = filename_e.text()
2298         if not filename:
2299             return
2300
2301         try:
2302             self.do_export_history(self.wallet, filename, csv_button.isChecked())
2303         except (IOError, os.error), reason:
2304             export_error_label = _("Electrum was unable to produce a transaction export.")
2305             QMessageBox.critical(self, _("Unable to export history"), export_error_label + "\n" + str(reason))
2306             return
2307
2308         QMessageBox.information(self,_("History exported"), _("Your wallet history has been successfully exported."))
2309
2310
2311     def do_export_history(self, wallet, fileName, is_csv):
2312         history = wallet.get_tx_history()
2313         lines = []
2314         for item in history:
2315             tx_hash, confirmations, is_mine, value, fee, balance, timestamp = item
2316             if confirmations:
2317                 if timestamp is not None:
2318                     try:
2319                         time_string = datetime.datetime.fromtimestamp(timestamp).isoformat(' ')[:-3]
2320                     except [RuntimeError, TypeError, NameError] as reason:
2321                         time_string = "unknown"
2322                         pass
2323                 else:
2324                     time_string = "unknown"
2325             else:
2326                 time_string = "pending"
2327
2328             if value is not None:
2329                 value_string = format_satoshis(value, True)
2330             else:
2331                 value_string = '--'
2332
2333             if fee is not None:
2334                 fee_string = format_satoshis(fee, True)
2335             else:
2336                 fee_string = '0'
2337
2338             if tx_hash:
2339                 label, is_default_label = wallet.get_label(tx_hash)
2340                 label = label.encode('utf-8')
2341             else:
2342                 label = ""
2343
2344             balance_string = format_satoshis(balance, False)
2345             if is_csv:
2346                 lines.append([tx_hash, label, confirmations, value_string, fee_string, balance_string, time_string])
2347             else:
2348                 lines.append({'txid':tx_hash, 'date':"%16s"%time_string, 'label':label, 'value':value_string})
2349
2350         with open(fileName, "w+") as f:
2351             if is_csv:
2352                 transaction = csv.writer(f)
2353                 transaction.writerow(["transaction_hash","label", "confirmations", "value", "fee", "balance", "timestamp"])
2354                 for line in lines:
2355                     transaction.writerow(line)
2356             else:
2357                 import json
2358                 f.write(json.dumps(lines, indent = 4))
2359
2360
2361     def sweep_key_dialog(self):
2362         d = QDialog(self)
2363         d.setWindowTitle(_('Sweep private keys'))
2364         d.setMinimumSize(600, 300)
2365
2366         vbox = QVBoxLayout(d)
2367         vbox.addWidget(QLabel(_("Enter private keys")))
2368
2369         keys_e = QTextEdit()
2370         keys_e.setTabChangesFocus(True)
2371         vbox.addWidget(keys_e)
2372
2373         h, address_e = address_field(self.wallet.addresses())
2374         vbox.addLayout(h)
2375
2376         vbox.addStretch(1)
2377         hbox, button = ok_cancel_buttons2(d, _('Sweep'))
2378         vbox.addLayout(hbox)
2379         button.setEnabled(False)
2380
2381         def get_address():
2382             addr = str(address_e.text())
2383             if bitcoin.is_address(addr):
2384                 return addr
2385
2386         def get_pk():
2387             pk = str(keys_e.toPlainText()).strip()
2388             if Wallet.is_private_key(pk):
2389                 return pk.split()
2390
2391         f = lambda: button.setEnabled(get_address() is not None and get_pk() is not None)
2392         keys_e.textChanged.connect(f)
2393         address_e.textChanged.connect(f)
2394         if not d.exec_():
2395             return
2396
2397         fee = self.wallet.fee
2398         tx = Transaction.sweep(get_pk(), self.network, get_address(), fee)
2399         self.show_transaction(tx)
2400
2401
2402     @protected
2403     def do_import_privkey(self, password):
2404         if not self.wallet.has_imported_keys():
2405             r = QMessageBox.question(None, _('Warning'), '<b>'+_('Warning') +':\n</b><br/>'+ _('Imported keys are not recoverable from seed.') + ' ' \
2406                                          + _('If you ever need to restore your wallet from its seed, these keys will be lost.') + '<p>' \
2407                                          + _('Are you sure you understand what you are doing?'), 3, 4)
2408             if r == 4: return
2409
2410         text = text_dialog(self, _('Import private keys'), _("Enter private keys")+':', _("Import"))
2411         if not text: return
2412
2413         text = str(text).split()
2414         badkeys = []
2415         addrlist = []
2416         for key in text:
2417             try:
2418                 addr = self.wallet.import_key(key, password)
2419             except Exception as e:
2420                 badkeys.append(key)
2421                 continue
2422             if not addr:
2423                 badkeys.append(key)
2424             else:
2425                 addrlist.append(addr)
2426         if addrlist:
2427             QMessageBox.information(self, _('Information'), _("The following addresses were added") + ':\n' + '\n'.join(addrlist))
2428         if badkeys:
2429             QMessageBox.critical(self, _('Error'), _("The following inputs could not be imported") + ':\n'+ '\n'.join(badkeys))
2430         self.update_address_tab()
2431         self.update_history_tab()
2432
2433
2434     def settings_dialog(self):
2435         d = QDialog(self)
2436         d.setWindowTitle(_('Electrum Settings'))
2437         d.setModal(1)
2438         vbox = QVBoxLayout()
2439         grid = QGridLayout()
2440         grid.setColumnStretch(0,1)
2441
2442         nz_label = QLabel(_('Display zeros') + ':')
2443         grid.addWidget(nz_label, 0, 0)
2444         nz_e = AmountEdit(None,True)
2445         nz_e.setText("%d"% self.num_zeros)
2446         grid.addWidget(nz_e, 0, 1)
2447         msg = _('Number of zeros displayed after the decimal point. For example, if this is set to 2, "1." will be displayed as "1.00"')
2448         grid.addWidget(HelpButton(msg), 0, 2)
2449         if not self.config.is_modifiable('num_zeros'):
2450             for w in [nz_e, nz_label]: w.setEnabled(False)
2451
2452         lang_label=QLabel(_('Language') + ':')
2453         grid.addWidget(lang_label, 1, 0)
2454         lang_combo = QComboBox()
2455         from electrum.i18n import languages
2456         lang_combo.addItems(languages.values())
2457         try:
2458             index = languages.keys().index(self.config.get("language",''))
2459         except Exception:
2460             index = 0
2461         lang_combo.setCurrentIndex(index)
2462         grid.addWidget(lang_combo, 1, 1)
2463         grid.addWidget(HelpButton(_('Select which language is used in the GUI (after restart).')+' '), 1, 2)
2464         if not self.config.is_modifiable('language'):
2465             for w in [lang_combo, lang_label]: w.setEnabled(False)
2466
2467
2468         fee_label = QLabel(_('Transaction fee') + ':')
2469         grid.addWidget(fee_label, 2, 0)
2470         fee_e = BTCAmountEdit(self.get_decimal_point)
2471         fee_e.setAmount(self.wallet.fee)
2472         grid.addWidget(fee_e, 2, 1)
2473         msg = _('Fee per kilobyte of transaction.') + '\n' \
2474             + _('Recommended value') + ': ' + self.format_amount(10000) + ' ' + self.base_unit()
2475         grid.addWidget(HelpButton(msg), 2, 2)
2476         if not self.config.is_modifiable('fee_per_kb'):
2477             for w in [fee_e, fee_label]: w.setEnabled(False)
2478
2479         units = ['BTC', 'mBTC']
2480         unit_label = QLabel(_('Base unit') + ':')
2481         grid.addWidget(unit_label, 3, 0)
2482         unit_combo = QComboBox()
2483         unit_combo.addItems(units)
2484         unit_combo.setCurrentIndex(units.index(self.base_unit()))
2485         grid.addWidget(unit_combo, 3, 1)
2486         grid.addWidget(HelpButton(_('Base unit of your wallet.')\
2487                                              + '\n1BTC=1000mBTC.\n' \
2488                                              + _(' These settings affects the fields in the Send tab')+' '), 3, 2)
2489
2490         usechange_cb = QCheckBox(_('Use change addresses'))
2491         usechange_cb.setChecked(self.wallet.use_change)
2492         grid.addWidget(usechange_cb, 4, 0)
2493         grid.addWidget(HelpButton(_('Using change addresses makes it more difficult for other people to track your transactions.')+' '), 4, 2)
2494         if not self.config.is_modifiable('use_change'): usechange_cb.setEnabled(False)
2495
2496         block_explorers = ['Blockchain.info', 'Blockr.io', 'Insight.is']
2497         block_ex_label = QLabel(_('Online Block Explorer') + ':')
2498         grid.addWidget(block_ex_label, 5, 0)
2499         block_ex_combo = QComboBox()
2500         block_ex_combo.addItems(block_explorers)
2501         block_ex_combo.setCurrentIndex(block_explorers.index(self.config.get('block_explorer', 'Blockchain.info')))
2502         grid.addWidget(block_ex_combo, 5, 1)
2503         grid.addWidget(HelpButton(_('Choose which online block explorer to use for functions that open a web browser')+' '), 5, 2)
2504
2505         show_tx = self.config.get('show_before_broadcast', False)
2506         showtx_cb = QCheckBox(_('Show before broadcast'))
2507         showtx_cb.setChecked(show_tx)
2508         grid.addWidget(showtx_cb, 6, 0)
2509         grid.addWidget(HelpButton(_('Display the details of your transactions before broadcasting it.')), 6, 2)
2510
2511         vbox.addLayout(grid)
2512         vbox.addStretch(1)
2513         vbox.addLayout(ok_cancel_buttons(d))
2514         d.setLayout(vbox)
2515
2516         # run the dialog
2517         if not d.exec_(): return
2518
2519         fee = fee_e.get_amount()
2520         if fee is None:
2521             QMessageBox.warning(self, _('Error'), _('Invalid value') +': %s'%fee, _('OK'))
2522             return
2523
2524         self.wallet.set_fee(fee)
2525
2526         nz = unicode(nz_e.text())
2527         try:
2528             nz = int( nz )
2529             if nz>8: nz=8
2530         except Exception:
2531             QMessageBox.warning(self, _('Error'), _('Invalid value')+':%s'%nz, _('OK'))
2532             return
2533
2534         if self.num_zeros != nz:
2535             self.num_zeros = nz
2536             self.config.set_key('num_zeros', nz, True)
2537             self.update_history_tab()
2538             self.update_address_tab()
2539
2540         usechange_result = usechange_cb.isChecked()
2541         if self.wallet.use_change != usechange_result:
2542             self.wallet.use_change = usechange_result
2543             self.wallet.storage.put('use_change', self.wallet.use_change)
2544
2545         if showtx_cb.isChecked() != show_tx:
2546             self.config.set_key('show_before_broadcast', not show_tx)
2547
2548         unit_result = units[unit_combo.currentIndex()]
2549         if self.base_unit() != unit_result:
2550             self.decimal_point = 8 if unit_result == 'BTC' else 5
2551             self.config.set_key('decimal_point', self.decimal_point, True)
2552             self.update_history_tab()
2553             self.update_status()
2554
2555         need_restart = False
2556
2557         lang_request = languages.keys()[lang_combo.currentIndex()]
2558         if lang_request != self.config.get('language'):
2559             self.config.set_key("language", lang_request, True)
2560             need_restart = True
2561
2562         be_result = block_explorers[block_ex_combo.currentIndex()]
2563         self.config.set_key('block_explorer', be_result, True)
2564
2565         run_hook('close_settings_dialog')
2566
2567         if need_restart:
2568             QMessageBox.warning(self, _('Success'), _('Please restart Electrum to activate the new GUI settings'), _('OK'))
2569
2570
2571     def run_network_dialog(self):
2572         if not self.network:
2573             return
2574         NetworkDialog(self.wallet.network, self.config, self).do_exec()
2575
2576     def closeEvent(self, event):
2577         self.tray.hide()
2578         self.config.set_key("is_maximized", self.isMaximized())
2579         if not self.isMaximized():
2580             g = self.geometry()
2581             self.config.set_key("winpos-qt", [g.left(),g.top(),g.width(),g.height()])
2582         self.save_column_widths()
2583         self.config.set_key("console-history", self.console.history[-50:], True)
2584         self.wallet.storage.put('accounts_expanded', self.accounts_expanded)
2585         event.accept()
2586
2587
2588     def plugins_dialog(self):
2589         from electrum.plugins import plugins
2590
2591         d = QDialog(self)
2592         d.setWindowTitle(_('Electrum Plugins'))
2593         d.setModal(1)
2594
2595         vbox = QVBoxLayout(d)
2596
2597         # plugins
2598         scroll = QScrollArea()
2599         scroll.setEnabled(True)
2600         scroll.setWidgetResizable(True)
2601         scroll.setMinimumSize(400,250)
2602         vbox.addWidget(scroll)
2603
2604         w = QWidget()
2605         scroll.setWidget(w)
2606         w.setMinimumHeight(len(plugins)*35)
2607
2608         grid = QGridLayout()
2609         grid.setColumnStretch(0,1)
2610         w.setLayout(grid)
2611
2612         def do_toggle(cb, p, w):
2613             r = p.toggle()
2614             cb.setChecked(r)
2615             if w: w.setEnabled(r)
2616
2617         def mk_toggle(cb, p, w):
2618             return lambda: do_toggle(cb,p,w)
2619
2620         for i, p in enumerate(plugins):
2621             try:
2622                 cb = QCheckBox(p.fullname())
2623                 cb.setDisabled(not p.is_available())
2624                 cb.setChecked(p.is_enabled())
2625                 grid.addWidget(cb, i, 0)
2626                 if p.requires_settings():
2627                     w = p.settings_widget(self)
2628                     w.setEnabled( p.is_enabled() )
2629                     grid.addWidget(w, i, 1)
2630                 else:
2631                     w = None
2632                 cb.clicked.connect(mk_toggle(cb,p,w))
2633                 grid.addWidget(HelpButton(p.description()), i, 2)
2634             except Exception:
2635                 print_msg(_("Error: cannot display plugin"), p)
2636                 traceback.print_exc(file=sys.stdout)
2637         grid.setRowStretch(i+1,1)
2638
2639         vbox.addLayout(close_button(d))
2640
2641         d.exec_()
2642
2643
2644     def show_account_details(self, k):
2645         account = self.wallet.accounts[k]
2646
2647         d = QDialog(self)
2648         d.setWindowTitle(_('Account Details'))
2649         d.setModal(1)
2650
2651         vbox = QVBoxLayout(d)
2652         name = self.wallet.get_account_name(k)
2653         label = QLabel('Name: ' + name)
2654         vbox.addWidget(label)
2655
2656         vbox.addWidget(QLabel(_('Address type') + ': ' + account.get_type()))
2657
2658         vbox.addWidget(QLabel(_('Derivation') + ': ' + k))
2659
2660         vbox.addWidget(QLabel(_('Master Public Key:')))
2661
2662         text = QTextEdit()
2663         text.setReadOnly(True)
2664         text.setMaximumHeight(170)
2665         vbox.addWidget(text)
2666
2667         mpk_text = '\n'.join( account.get_master_pubkeys() )
2668         text.setText(mpk_text)
2669
2670         vbox.addLayout(close_button(d))
2671         d.exec_()