lib/gui_qt.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
  20 from i18n import _
  21
  22 try:
  23     import PyQt4
  24 except:
  25     print "could not import PyQt4"
  26     print "on Linux systems, you may try 'sudo apt-get install python-qt4'"
  27     sys.exit(1)
  28
  29 from PyQt4.QtGui import *
  30 from PyQt4.QtCore import *
  31 import PyQt4.QtCore as QtCore
  32 import PyQt4.QtGui as QtGui
  33 from interface import DEFAULT_SERVERS
  34
  35 try:
  36     import icons_rc
  37 except:
  38     print "Could not import icons_rp.py"
  39     print "Please generate it with: 'pyrcc4 icons.qrc -o icons_rc.py'"
  40     sys.exit(1)
  41
  42 from wallet import format_satoshis
  43 import bmp, mnemonic, pyqrnative
  44
  45 from decimal import Decimal
  46
  47 import platform
  48 MONOSPACE_FONT = 'Lucida Console' if platform.system() == 'Windows' else 'monospace'
  49 ALIAS_REGEXP = '^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$'
  50
  51 def numbify(entry, is_int = False):
  52     text = unicode(entry.text()).strip()
  53     chars = '0123456789'
  54     if not is_int: chars +='.'
  55     s = ''.join([i for i in text if i in chars])
  56     if not is_int:
  57         if '.' in s:
  58             p = s.find('.')
  59             s = s.replace('.','')
  60             s = s[:p] + '.' + s[p:p+8]
  61         try:
  62             amount = int( Decimal(s) * 100000000 )
  63         except:
  64             amount = None
  65     else:
  66         try:
  67             amount = int( s )
  68         except:
  69             amount = None
  70     entry.setText(s)
  71     return amount
  72
  73
  74 class Timer(QtCore.QThread):
  75     def run(self):
  76         while True:
  77             self.emit(QtCore.SIGNAL('timersignal'))
  78             time.sleep(0.5)
  79
  80 class EnterButton(QPushButton):
  81     def __init__(self, text, func):
  82         QPushButton.__init__(self, text)
  83         self.func = func
  84         self.clicked.connect(func)
  85
  86     def keyPressEvent(self, e):
  87         if e.key() == QtCore.Qt.Key_Return:
  88             apply(self.func,())
  89
  90 class MyTreeWidget(QTreeWidget):
  91     def __init__(self, parent):
  92         QTreeWidget.__init__(self, parent)
  93         def ddfr(item):
  94             if not item: return
  95             for i in range(0,100):
  96                 if self.itemAt(QPoint(0,i*5)) == item:
  97                     break
  98             else:
  99                 return
 100             self.emit(SIGNAL('customContextMenuRequested(const QPoint&)'), QPoint(50, 15 + i*5))
 101         self.connect(self, SIGNAL('itemActivated(QTreeWidgetItem*, int)'), ddfr)
 102
 103 class StatusBarButton(QPushButton):
 104     def __init__(self, icon, tooltip, func):
 105         QPushButton.__init__(self, icon, '')
 106         self.setToolTip(tooltip)
 107         self.setFlat(True)
 108         self.setMaximumWidth(25)
 109         self.clicked.connect(func)
 110         self.func = func
 111
 112     def keyPressEvent(self, e):
 113         if e.key() == QtCore.Qt.Key_Return:
 114             apply(self.func,())
 115
 116
 117 class QRCodeWidget(QWidget):
 118
 119     def __init__(self, addr):
 120         super(QRCodeWidget, self).__init__()
 121         self.setGeometry(300, 300, 350, 350)
 122         self.set_addr(addr)
 123
 124     def set_addr(self, addr):
 125         self.addr = addr
 126         self.qr = pyqrnative.QRCode(4, pyqrnative.QRErrorCorrectLevel.L)
 127         self.qr.addData(addr)
 128         self.qr.make()
 129
 130     def paintEvent(self, e):
 131         qp = QtGui.QPainter()
 132         qp.begin(self)
 133         boxsize = 7
 134         size = self.qr.getModuleCount()*boxsize
 135         k = self.qr.getModuleCount()
 136         black = QColor(0, 0, 0, 255)
 137         white = QColor(255, 255, 255, 255)
 138         for r in range(k):
 139             for c in range(k):
 140                 if self.qr.isDark(r, c):
 141                     qp.setBrush(black)
 142                     qp.setPen(black)
 143                 else:
 144                     qp.setBrush(white)
 145                     qp.setPen(white)
 146                 qp.drawRect(c*boxsize, r*boxsize, boxsize, boxsize)
 147         qp.end()
 148
 149
 150
 151 def ok_cancel_buttons(dialog):
 152     hbox = QHBoxLayout()
 153     hbox.addStretch(1)
 154     b = QPushButton("OK")
 155     hbox.addWidget(b)
 156     b.clicked.connect(dialog.accept)
 157     b = QPushButton("Cancel")
 158     hbox.addWidget(b)
 159     b.clicked.connect(dialog.reject)
 160     return hbox
 161
 162
 163 class ElectrumWindow(QMainWindow):
 164
 165     def __init__(self, wallet):
 166         QMainWindow.__init__(self)
 167         self.wallet = wallet
 168         self.wallet.gui_callback = self.update_callback
 169
 170         self.funds_error = False
 171
 172         self.tabs = tabs = QTabWidget(self)
 173         tabs.addTab(self.create_history_tab(), _('History') )
 174         if self.wallet.seed:
 175             tabs.addTab(self.create_send_tab(), _('Send') )
 176         tabs.addTab(self.create_receive_tab(), _('Receive') )
 177         tabs.addTab(self.create_contacts_tab(), _('Contacts') )
 178         tabs.addTab(self.create_wall_tab(), _('Wall') )
 179         tabs.setMinimumSize(600, 400)
 180         tabs.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
 181         self.setCentralWidget(tabs)
 182         self.create_status_bar()
 183         self.setGeometry(100,100,840,400)
 184         title = 'Electrum ' + self.wallet.electrum_version + '  -  ' + self.wallet.path
 185         if not self.wallet.seed: title += ' [seedless]'
 186         self.setWindowTitle( title )
 187         self.show()
 188
 189         QShortcut(QKeySequence("Ctrl+W"), self, self.close)
 190         QShortcut(QKeySequence("Ctrl+Q"), self, self.close)
 191         QShortcut(QKeySequence("Ctrl+PgUp"), self, lambda: tabs.setCurrentIndex( (tabs.currentIndex() - 1 )%tabs.count() ))
 192         QShortcut(QKeySequence("Ctrl+PgDown"), self, lambda: tabs.setCurrentIndex( (tabs.currentIndex() + 1 )%tabs.count() ))
 193
 194         self.connect(self, QtCore.SIGNAL('updatesignal'), self.update_wallet)
 195         self.history_list.setFocus(True)
 196
 197
 198     def connect_slots(self, sender):
 199         if self.wallet.seed:
 200             self.connect(sender, QtCore.SIGNAL('timersignal'), self.check_recipient)
 201             self.previous_payto_e=''
 202
 203     def check_recipient(self):
 204         if self.payto_e.hasFocus():
 205             return
 206         r = unicode( self.payto_e.text() )
 207         if r != self.previous_payto_e:
 208             self.previous_payto_e = r
 209             r = r.strip()
 210             if re.match('^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$', r):
 211                 try:
 212                     to_address = self.wallet.get_alias(r, True, self.show_message, self.question)
 213                 except:
 214                     return
 215                 if to_address:
 216                     s = r + '  <' + to_address + '>'
 217                     self.payto_e.setText(s)
 218
 219
 220     def update_callback(self):
 221         self.emit(QtCore.SIGNAL('updatesignal'))
 222
 223     def update_wallet(self):
 224         if self.wallet.interface and self.wallet.interface.is_connected:
 225             if self.wallet.blocks == -1:
 226                 text = _( "Connecting..." )
 227                 icon = QIcon(":icons/status_disconnected.png")
 228             elif self.wallet.blocks == 0:
 229                 text = _( "Server not ready" )
 230                 icon = QIcon(":icons/status_disconnected.png")
 231             elif not self.wallet.up_to_date:
 232                 text = _( "Synchronizing..." )
 233                 icon = QIcon(":icons/status_waiting.png")
 234             else:
 235                 c, u = self.wallet.get_balance()
 236                 text =  _( "Balance" ) + ": %s "%( format_satoshis(c,False,self.wallet.num_zeros) )
 237                 if u: text +=  "[%s unconfirmed]"%( format_satoshis(u,True,self.wallet.num_zeros).strip() )
 238                 icon = QIcon(":icons/status_connected.png")
 239         else:
 240             text = _( "Not connected" )
 241             icon = QIcon(":icons/status_disconnected.png")
 242
 243         if self.funds_error:
 244             text = _( "Not enough funds" )
 245
 246         self.statusBar().showMessage(text)
 247         self.status_button.setIcon( icon )
 248
 249         if self.wallet.up_to_date:
 250             self.textbox.setText( self.wallet.banner )
 251             self.update_history_tab()
 252             self.update_receive_tab()
 253             self.update_contacts_tab()
 254             self.update_completions()
 255
 256
 257     def create_history_tab(self):
 258         self.history_list = l = MyTreeWidget(self)
 259         l.setColumnCount(5)
 260         l.setColumnWidth(0, 40)
 261         l.setColumnWidth(1, 140)
 262         l.setColumnWidth(2, 350)
 263         l.setColumnWidth(3, 140)
 264         l.setColumnWidth(4, 140)
 265         l.setHeaderLabels( [ '', _( 'Date' ), _( 'Description' ) , _('Amount'), _('Balance')] )
 266         self.connect(l, SIGNAL('itemDoubleClicked(QTreeWidgetItem*, int)'), self.tx_label_clicked)
 267         self.connect(l, SIGNAL('itemChanged(QTreeWidgetItem*, int)'), self.tx_label_changed)
 268         l.setContextMenuPolicy(Qt.CustomContextMenu)
 269         l.customContextMenuRequested.connect(self.create_history_menu)
 270         return l
 271
 272     def create_history_menu(self, position):
 273         self.history_list.selectedIndexes()
 274         item = self.history_list.currentItem()
 275         if not item: return
 276         menu = QMenu()
 277         menu.addAction(_("Details"), lambda: self.tx_details(item,2))
 278         menu.addAction(_("Edit description"), lambda: self.tx_label_clicked(item,2))
 279         menu.exec_(self.contacts_list.viewport().mapToGlobal(position))
 280
 281     def tx_details(self, item, column):
 282         tx_hash = str(item.toolTip(0))
 283         tx = self.wallet.tx_history.get(tx_hash)
 284
 285         if tx['height']:
 286             conf = self.wallet.blocks - tx['height'] + 1
 287             time_str = datetime.datetime.fromtimestamp( tx['timestamp']).isoformat(' ')[:-3]
 288         else:
 289             conf = 0
 290             time_str = 'pending'
 291
 292         tx_details = _("Transaction Details") +"\n\n" \
 293             + "Transaction ID:\n" + tx_hash + "\n\n" \
 294             + "Status: %d confirmations\n\n"%conf  \
 295             + "Date: %s\n\n"%time_str \
 296             + "Inputs:\n-"+ '\n-'.join(tx['inputs']) + "\n\n" \
 297             + "Outputs:\n-"+ '\n-'.join(tx['outputs'])
 298
 299         r = self.wallet.receipts.get(tx_hash)
 300         if r:
 301             tx_details += "\n_______________________________________" \
 302                 + '\n\nSigned URI: ' + r[2] \
 303                 + "\n\nSigned by: " + r[0] \
 304                 + '\n\nSignature: ' + r[1]
 305
 306         QMessageBox.information(self, 'Details', tx_details, 'OK')
 307
 308
 309     def tx_label_clicked(self, item, column):
 310         if column==2 and item.isSelected():
 311             tx_hash = str(item.toolTip(0))
 312             self.is_edit=True
 313             #if not self.wallet.labels.get(tx_hash): item.setText(2,'')
 314             item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 315             self.history_list.editItem( item, column )
 316             item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 317             self.is_edit=False
 318
 319     def tx_label_changed(self, item, column):
 320         if self.is_edit:
 321             return
 322         self.is_edit=True
 323         tx_hash = str(item.toolTip(0))
 324         tx = self.wallet.tx_history.get(tx_hash)
 325         s = self.wallet.labels.get(tx_hash)
 326         text = unicode( item.text(2) )
 327         if text:
 328             self.wallet.labels[tx_hash] = text
 329             item.setForeground(2, QBrush(QColor('black')))
 330         else:
 331             if s: self.wallet.labels.pop(tx_hash)
 332             text = tx['default_label']
 333             item.setText(2, text)
 334             item.setForeground(2, QBrush(QColor('gray')))
 335         self.is_edit=False
 336
 337     def edit_label(self, is_recv):
 338         l = self.receive_list if is_recv else self.contacts_list
 339         c = 2 if is_recv else 1
 340         item = l.currentItem()
 341         item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 342         l.editItem( item, c )
 343         item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 344
 345     def address_label_clicked(self, item, column, l, column_addr, column_label):
 346         if column==column_label and item.isSelected():
 347             addr = unicode( item.text(column_addr) )
 348             label = unicode( item.text(column_label) )
 349             if label in self.wallet.aliases.keys():
 350                 return
 351             item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 352             l.editItem( item, column )
 353             item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 354
 355     def address_label_changed(self, item, column, l, column_addr, column_label):
 356         addr = unicode( item.text(column_addr) )
 357         text = unicode( item.text(column_label) )
 358         if text:
 359             if text not in self.wallet.aliases.keys():
 360                 self.wallet.labels[addr] = text
 361             else:
 362                 print "error: this is one of your aliases"
 363                 label = self.wallet.labels.get(addr,'')
 364                 item.setText(column_label, QString(label))
 365         else:
 366             s = self.wallet.labels.get(addr)
 367             if s: self.wallet.labels.pop(addr)
 368
 369         self.update_history_tab()
 370         self.update_completions()
 371
 372     def update_history_tab(self):
 373         self.history_list.clear()
 374         balance = 0
 375         for tx in self.wallet.get_tx_history():
 376             tx_hash = tx['tx_hash']
 377             if tx['height']:
 378                 conf = self.wallet.blocks - tx['height'] + 1
 379                 time_str = datetime.datetime.fromtimestamp( tx['timestamp']).isoformat(' ')[:-3]
 380                 icon = QIcon(":icons/confirmed.png")
 381             else:
 382                 conf = 0
 383                 time_str = 'pending'
 384                 icon = QIcon(":icons/unconfirmed.png")
 385             v = tx['value']
 386             balance += v
 387             label = self.wallet.labels.get(tx_hash)
 388             is_default_label = (label == '') or (label is None)
 389             if is_default_label: label = tx['default_label']
 390
 391             item = QTreeWidgetItem( [ '', time_str, label, format_satoshis(v,True,self.wallet.num_zeros), format_satoshis(balance,False,self.wallet.num_zeros)] )
 392             item.setFont(2, QFont(MONOSPACE_FONT))
 393             item.setFont(3, QFont(MONOSPACE_FONT))
 394             item.setFont(4, QFont(MONOSPACE_FONT))
 395             item.setToolTip(0, tx_hash)
 396             if is_default_label:
 397                 item.setForeground(2, QBrush(QColor('grey')))
 398
 399             item.setIcon(0, icon)
 400             self.history_list.insertTopLevelItem(0,item)
 401
 402         self.history_list.setCurrentItem(self.history_list.topLevelItem(0))
 403
 404
 405     def create_send_tab(self):
 406         w = QWidget()
 407
 408         grid = QGridLayout()
 409         grid.setSpacing(8)
 410         grid.setColumnMinimumWidth(3,300)
 411         grid.setColumnStretch(4,1)
 412
 413         self.payto_e = QLineEdit()
 414         grid.addWidget(QLabel(_('Pay to')), 1, 0)
 415         grid.addWidget(self.payto_e, 1, 1, 1, 3)
 416
 417         completer = QCompleter()
 418         self.payto_e.setCompleter(completer)
 419         self.completions = QStringListModel()
 420         completer.setModel(self.completions)
 421
 422         self.message_e = QLineEdit()
 423         grid.addWidget(QLabel(_('Description')), 2, 0)
 424         grid.addWidget(self.message_e, 2, 1, 1, 3)
 425
 426         self.amount_e = QLineEdit()
 427         grid.addWidget(QLabel(_('Amount')), 3, 0)
 428         grid.addWidget(self.amount_e, 3, 1, 1, 2)
 429
 430         self.fee_e = QLineEdit()
 431         grid.addWidget(QLabel(_('Fee')), 4, 0)
 432         grid.addWidget(self.fee_e, 4, 1, 1, 2)
 433
 434         b = EnterButton(_("Send"), self.do_send)
 435         grid.addWidget(b, 5, 1)
 436
 437         b = EnterButton(_("Clear"),self.do_clear)
 438         grid.addWidget(b, 5, 2)
 439
 440         self.payto_sig = QLabel('')
 441         grid.addWidget(self.payto_sig, 6, 0, 1, 4)
 442
 443         w.setLayout(grid)
 444         w.show()
 445
 446         w2 = QWidget()
 447         vbox = QVBoxLayout()
 448         vbox.addWidget(w)
 449         vbox.addStretch(1)
 450         w2.setLayout(vbox)
 451
 452         def entry_changed( is_fee ):
 453             self.funds_error = False
 454             amount = numbify(self.amount_e)
 455             fee = numbify(self.fee_e)
 456             if not is_fee: fee = None
 457             if amount is None:
 458                 return
 459             inputs, total, fee = self.wallet.choose_tx_inputs( amount, fee )
 460             if not is_fee:
 461                 self.fee_e.setText( str( Decimal( fee ) / 100000000 ) )
 462             if inputs:
 463                 palette = QPalette()
 464                 palette.setColor(self.amount_e.foregroundRole(), QColor('black'))
 465             else:
 466                 palette = QPalette()
 467                 palette.setColor(self.amount_e.foregroundRole(), QColor('red'))
 468                 self.funds_error = True
 469             self.amount_e.setPalette(palette)
 470             self.fee_e.setPalette(palette)
 471
 472         self.amount_e.textChanged.connect(lambda: entry_changed(False) )
 473         self.fee_e.textChanged.connect(lambda: entry_changed(True) )
 474
 475         return w2
 476
 477
 478     def update_completions(self):
 479         l = []
 480         for addr,label in self.wallet.labels.items():
 481             if addr in self.wallet.addressbook:
 482                 l.append( label + '  <' + addr + '>')
 483         l = l + self.wallet.aliases.keys()
 484
 485         self.completions.setStringList(l)
 486
 487
 488
 489     def do_send(self):
 490
 491         label = unicode( self.message_e.text() )
 492         r = unicode( self.payto_e.text() )
 493         r = r.strip()
 494
 495         # alias
 496         m1 = re.match(ALIAS_REGEXP, r)
 497         # label or alias, with address in brackets
 498         m2 = re.match('(.*?)\s*\<([1-9A-HJ-NP-Za-km-z]{26,})\>', r)
 499
 500         if m1:
 501             to_address = self.wallet.get_alias(r, True, self.show_message, self.question)
 502             if not to_address:
 503                 return
 504         elif m2:
 505             to_address = m2.group(2)
 506         else:
 507             to_address = r
 508
 509         if not self.wallet.is_valid(to_address):
 510             QMessageBox.warning(self, _('Error'), _('Invalid Bitcoin Address') + ':\n' + to_address, _('OK'))
 511             return
 512
 513         try:
 514             amount = int( Decimal( unicode( self.amount_e.text())) * 100000000 )
 515         except:
 516             QMessageBox.warning(self, _('Error'), _('Invalid Amount'), _('OK'))
 517             return
 518         try:
 519             fee = int( Decimal( unicode( self.fee_e.text())) * 100000000 )
 520         except:
 521             QMessageBox.warning(self, _('Error'), _('Invalid Fee'), _('OK'))
 522             return
 523
 524         if self.wallet.use_encryption:
 525             password = self.password_dialog()
 526             if not password:
 527                 return
 528         else:
 529             password = None
 530
 531         try:
 532             tx = self.wallet.mktx( to_address, amount, label, password, fee )
 533         except BaseException, e:
 534             self.show_message(str(e))
 535             return
 536
 537         status, msg = self.wallet.sendtx( tx )
 538         if status:
 539             QMessageBox.information(self, '', _('Payment sent.')+'\n'+msg, _('OK'))
 540             self.do_clear()
 541             self.update_contacts_tab()
 542         else:
 543             QMessageBox.warning(self, _('Error'), msg, _('OK'))
 544
 545
 546     def set_url(self, url):
 547         payto, amount, label, message, signature, identity, url = self.wallet.parse_url(url, self.show_message, self.question)
 548         self.tabs.setCurrentIndex(1)
 549         label = self.wallet.labels.get(payto)
 550         m_addr = label + '  <'+ payto+'>' if label else payto
 551         self.payto_e.setText(m_addr)
 552
 553         self.message_e.setText(message)
 554         self.amount_e.setText(amount)
 555         if identity:
 556             self.set_frozen(self.payto_e,True)
 557             self.set_frozen(self.amount_e,True)
 558             self.set_frozen(self.message_e,True)
 559             self.payto_sig.setText( '      The bitcoin URI was signed by ' + identity )
 560         else:
 561             self.payto_sig.setVisible(False)
 562
 563     def do_clear(self):
 564         self.payto_sig.setVisible(False)
 565         for e in [self.payto_e, self.message_e, self.amount_e, self.fee_e]:
 566             e.setText('')
 567             self.set_frozen(e,False)
 568
 569     def set_frozen(self,entry,frozen):
 570         if frozen:
 571             entry.setReadOnly(True)
 572             entry.setFrame(False)
 573             palette = QPalette()
 574             palette.setColor(entry.backgroundRole(), QColor('lightgray'))
 575             entry.setPalette(palette)
 576         else:
 577             entry.setReadOnly(False)
 578             entry.setFrame(True)
 579             palette = QPalette()
 580             palette.setColor(entry.backgroundRole(), QColor('white'))
 581             entry.setPalette(palette)
 582
 583
 584     def toggle_freeze(self,addr):
 585         if not addr: return
 586         if addr in self.wallet.frozen_addresses:
 587             self.wallet.unfreeze(addr)
 588         else:
 589             self.wallet.freeze(addr)
 590         self.update_receive_tab()
 591
 592     def toggle_priority(self,addr):
 593         if not addr: return
 594         if addr in self.wallet.prioritized_addresses:
 595             self.wallet.unprioritize(addr)
 596         else:
 597             self.wallet.prioritize(addr)
 598         self.update_receive_tab()
 599
 600
 601     def create_list_tab(self, headers):
 602         "generic tab creation method"
 603         l = MyTreeWidget(self)
 604         l.setColumnCount( len(headers) )
 605         l.setHeaderLabels( headers )
 606
 607         w = QWidget()
 608         vbox = QVBoxLayout()
 609         w.setLayout(vbox)
 610
 611         vbox.setMargin(0)
 612         vbox.setSpacing(0)
 613         vbox.addWidget(l)
 614         buttons = QWidget()
 615         vbox.addWidget(buttons)
 616
 617         hbox = QHBoxLayout()
 618         hbox.setMargin(0)
 619         hbox.setSpacing(0)
 620         buttons.setLayout(hbox)
 621
 622         return l,w,hbox
 623
 624
 625     def create_receive_tab(self):
 626         l,w,hbox = self.create_list_tab([_('Flags'), _('Address'), _('Label'), _('Balance'), _('Tx')])
 627         l.setContextMenuPolicy(Qt.CustomContextMenu)
 628         l.customContextMenuRequested.connect(self.create_receive_menu)
 629         self.connect(l, SIGNAL('itemDoubleClicked(QTreeWidgetItem*, int)'), lambda a, b: self.address_label_clicked(a,b,l,1,2))
 630         self.connect(l, SIGNAL('itemChanged(QTreeWidgetItem*, int)'), lambda a,b: self.address_label_changed(a,b,l,1,2))
 631         self.receive_list = l
 632         self.receive_buttons_hbox = hbox
 633         self.new_address_button = EnterButton(_("New"), self.change_gap_limit_dialog)
 634         self.new_address_button.setHidden(not self.wallet.expert_mode)
 635         hbox.addWidget(self.new_address_button)
 636         hbox.addStretch(1)
 637         return w
 638
 639
 640     def create_contacts_tab(self):
 641         l,w,hbox = self.create_list_tab([_('Address'), _('Label'), _('Tx')])
 642         l.setContextMenuPolicy(Qt.CustomContextMenu)
 643         l.customContextMenuRequested.connect(self.create_contact_menu)
 644         self.connect(l, SIGNAL('itemDoubleClicked(QTreeWidgetItem*, int)'), lambda a, b: self.address_label_clicked(a,b,l,0,1))
 645         self.connect(l, SIGNAL('itemChanged(QTreeWidgetItem*, int)'), lambda a,b: self.address_label_changed(a,b,l,0,1))
 646         self.contacts_list = l
 647         self.contacts_buttons_hbox = hbox
 648         hbox.addWidget(EnterButton(_("New"), self.new_contact_dialog))
 649         hbox.addStretch(1)
 650         return w
 651
 652
 653     def create_receive_menu(self, position):
 654         # fixme: this function apparently has a side effect.
 655         # if it is not called the menu pops up several times
 656         #self.receive_list.selectedIndexes()
 657
 658         item = self.receive_list.itemAt(position)
 659         addr = unicode(item.text(1))
 660         menu = QMenu()
 661         menu.addAction(_("Copy to Clipboard"), lambda: self.app.clipboard().setText(addr))
 662         menu.addAction(_("View QR code"),lambda: self.show_address_qrcode(addr))
 663         menu.addAction(_("Edit label"), lambda: self.edit_label(True))
 664         if self.wallet.expert_mode:
 665             t = _("Unfreeze") if addr in self.wallet.frozen_addresses else _("Freeze")
 666             menu.addAction(t, lambda: self.toggle_freeze(addr))
 667             t = _("Unprioritize") if addr in self.wallet.prioritized_addresses else _("Prioritize")
 668             menu.addAction(t, lambda: self.toggle_priority(addr))
 669         menu.exec_(self.receive_list.viewport().mapToGlobal(position))
 670
 671
 672     def payto(self, addr):
 673         if not addr: return
 674         label = self.wallet.labels.get(addr)
 675         m_addr = label + '  <' + addr + '>' if label else addr
 676         self.tabs.setCurrentIndex(1)
 677         self.payto_e.setText(m_addr)
 678         self.amount_e.setFocus()
 679
 680     def delete_contact(self, addr, is_alias):
 681         if self.question("Do you want to remove %s from your list of contacts?"%addr):
 682             if not is_alias and addr in self.wallet.addressbook:
 683                 self.wallet.addressbook.remove(addr)
 684                 if addr in self.wallet.labels.keys():
 685                     self.wallet.labels.pop(addr)
 686             elif is_alias and addr in self.wallet.aliases:
 687                 self.wallet.aliases.pop(addr)
 688             self.update_history_tab()
 689             self.update_contacts_tab()
 690             self.update_completions()
 691
 692     def create_contact_menu(self, position):
 693         # fixme: this function apparently has a side effect.
 694         # if it is not called the menu pops up several times
 695         #self.contacts_list.selectedIndexes()
 696
 697         item = self.contacts_list.itemAt(position)
 698         if not item: return
 699         addr = unicode(item.text(0))
 700         menu = QMenu()
 701         menu.addAction(_("Pay to"), lambda: self.payto(addr))
 702         menu.addAction(_("Copy to Clipboard"), lambda: self.app.clipboard().setText(addr))
 703         menu.addAction(_("View QR code"),lambda: self.show_address_qrcode(addr))
 704         label = unicode( item.text(1) )
 705         if label not in self.wallet.aliases.keys():
 706             menu.addAction(_("Edit label"), lambda: self.edit_label(False))
 707             menu.addAction(_("Delete"), lambda: self.delete_contact(addr,False))
 708         else:
 709             menu.addAction(_("View alias details"), lambda: self.show_contact_details(label))
 710             menu.addAction(_("Delete"), lambda: self.delete_contact(label,True))
 711         menu.exec_(self.contacts_list.viewport().mapToGlobal(position))
 712
 713
 714     def update_receive_tab(self):
 715         l = self.receive_list
 716         l.clear()
 717         l.setColumnHidden(0,not self.wallet.expert_mode)
 718         l.setColumnHidden(3,not self.wallet.expert_mode)
 719         l.setColumnHidden(4,not self.wallet.expert_mode)
 720         l.setColumnWidth(0, 50)
 721         l.setColumnWidth(1, 310)
 722         l.setColumnWidth(2, 300)
 723         l.setColumnWidth(3, 90)
 724         l.setColumnWidth(4, 10)
 725
 726         self.new_address_button.setHidden(not self.wallet.expert_mode)
 727         gap = 0
 728         is_red = False
 729         for address in self.wallet.all_addresses():
 730
 731             if self.wallet.is_change(address) and not self.wallet.expert_mode:
 732                 continue
 733
 734             label = self.wallet.labels.get(address,'')
 735             n = 0
 736             h = self.wallet.history.get(address,[])
 737             for item in h:
 738                 if not item['is_input'] : n=n+1
 739
 740             if n==0:
 741                 tx = "None"
 742                 if address in self.wallet.addresses:
 743                     gap += 1
 744                     if gap > self.wallet.gap_limit:
 745                         is_red = True
 746             else:
 747                 tx = "%d"%n
 748                 if address in self.wallet.addresses:
 749                     gap = 0
 750
 751             c, u = self.wallet.get_addr_balance(address)
 752             balance = format_satoshis( c + u, False, self.wallet.num_zeros )
 753             flags = self.wallet.get_address_flags(address)
 754             item = QTreeWidgetItem( [ flags, address, label, balance, tx] )
 755
 756             item.setFont(0, QFont(MONOSPACE_FONT))
 757             item.setFont(1, QFont(MONOSPACE_FONT))
 758             if address in self.wallet.frozen_addresses:
 759                 item.setBackgroundColor(1, QColor('lightblue'))
 760             elif address in self.wallet.prioritized_addresses:
 761                 item.setBackgroundColor(1, QColor('lightgreen'))
 762             if is_red and address in self.wallet.addresses:
 763                 item.setBackgroundColor(1, QColor('red'))
 764             l.addTopLevelItem(item)
 765
 766         l.setCurrentItem(l.topLevelItem(0))
 767
 768     def show_contact_details(self, m):
 769         a = self.wallet.aliases.get(m)
 770         if a:
 771             if a[0] in self.wallet.authorities.keys():
 772                 s = self.wallet.authorities.get(a[0])
 773             else:
 774                 s = "self-signed"
 775             msg = 'Alias: '+ m + '\nTarget address: '+ a[1] + '\n\nSigned by: ' + s + '\nSigning address:' + a[0]
 776             QMessageBox.information(self, 'Alias', msg, 'OK')
 777
 778     def update_contacts_tab(self):
 779
 780         l = self.contacts_list
 781         l.clear()
 782         l.setColumnHidden(2, not self.wallet.expert_mode)
 783         l.setColumnWidth(0, 350)
 784         l.setColumnWidth(1, 330)
 785         l.setColumnWidth(2, 100)
 786
 787         alias_targets = []
 788         for alias, v in self.wallet.aliases.items():
 789             s, target = v
 790             alias_targets.append(target)
 791             item = QTreeWidgetItem( [ target, alias, '-'] )
 792             item.setBackgroundColor(1, QColor('lightgray'))
 793             l.addTopLevelItem(item)
 794
 795         for address in self.wallet.addressbook:
 796             if address in alias_targets: continue
 797             label = self.wallet.labels.get(address,'')
 798             n = 0
 799             for item in self.wallet.tx_history.values():
 800                 if address in item['outputs'] : n=n+1
 801             tx = "None" if n==0 else "%d"%n
 802             item = QTreeWidgetItem( [ address, label, tx] )
 803             item.setFont(0, QFont(MONOSPACE_FONT))
 804             l.addTopLevelItem(item)
 805
 806         l.setCurrentItem(l.topLevelItem(0))
 807
 808     def create_wall_tab(self):
 809         self.textbox = textbox = QTextEdit(self)
 810         textbox.setFont(QFont(MONOSPACE_FONT))
 811         textbox.setReadOnly(True)
 812         return textbox
 813
 814     def create_status_bar(self):
 815         sb = QStatusBar()
 816         sb.setFixedHeight(35)
 817         if self.wallet.seed:
 818             sb.addPermanentWidget( StatusBarButton( QIcon(":icons/lock.png"), "Password", lambda: self.change_password_dialog(self.wallet, self) ) )
 819         sb.addPermanentWidget( StatusBarButton( QIcon(":icons/preferences.png"), "Preferences", self.settings_dialog ) )
 820         if self.wallet.seed:
 821             sb.addPermanentWidget( StatusBarButton( QIcon(":icons/seed.png"), "Seed", lambda: self.show_seed_dialog(self.wallet, self) ) )
 822         self.status_button = StatusBarButton( QIcon(":icons/status_disconnected.png"), "Network", lambda: self.network_dialog(self.wallet, self) )
 823         sb.addPermanentWidget( self.status_button )
 824         self.setStatusBar(sb)
 825
 826     def new_contact_dialog(self):
 827         text, ok = QInputDialog.getText(self, _('New Contact'), _('Address') + ':')
 828         address = unicode(text)
 829         if ok:
 830             if self.wallet.is_valid(address):
 831                 self.wallet.addressbook.append(address)
 832                 self.wallet.save()
 833                 self.update_contacts_tab()
 834                 self.update_history_tab()
 835                 self.update_completions()
 836             else:
 837                 QMessageBox.warning(self, _('Error'), _('Invalid Address'), _('OK'))
 838
 839     @staticmethod
 840     def show_seed_dialog(wallet, parent=None):
 841
 842         if not wallet.seed:
 843             QMessageBox.information(parent, _('Message'), _('No seed'), _('OK'))
 844             return
 845
 846         if wallet.use_encryption:
 847             password = parent.password_dialog()
 848             if not password: return
 849         else:
 850             password = None
 851
 852         try:
 853             seed = wallet.pw_decode( wallet.seed, password)
 854         except:
 855             QMessageBox.warning(parent, _('Error'), _('Incorrect Password'), _('OK'))
 856             return
 857
 858         msg = _("Your wallet generation seed is") + ":\n\n" + seed + "\n\n"\
 859               + _("Please keep it in a safe place; if you lose it, you will not be able to restore your wallet.") + "\n\n" \
 860               + _("Equivalently, your wallet seed can be stored and recovered with the following mnemonic code") + ":\n\n\"" \
 861               + ' '.join(mnemonic.mn_encode(seed)) + "\"\n\n\n"
 862
 863         d = QDialog(None)
 864         d.setModal(1)
 865         d.setWindowTitle(_("Seed"))
 866         d.setMinimumSize(400, 270)
 867
 868         vbox = QVBoxLayout()
 869         hbox = QHBoxLayout()
 870         vbox2 = QVBoxLayout()
 871         l = QLabel()
 872         l.setPixmap(QPixmap(":icons/seed.png").scaledToWidth(56))
 873         vbox2.addWidget(l)
 874         vbox2.addStretch(1)
 875         hbox.addLayout(vbox2)
 876         hbox.addWidget(QLabel(msg))
 877         vbox.addLayout(hbox)
 878
 879         hbox = QHBoxLayout()
 880         hbox.addStretch(1)
 881
 882
 883         if parent:
 884             app = parent.app
 885         else:
 886             app = QApplication
 887
 888         b = QPushButton(_("Copy to Clipboard"))
 889         b.clicked.connect(lambda: app.clipboard().setText(seed + ' "' + ' '.join(mnemonic.mn_encode(seed))+'"'))
 890         hbox.addWidget(b)
 891         b = QPushButton(_("View as QR Code"))
 892         b.clicked.connect(lambda: ElectrumWindow.show_seed_qrcode(seed))
 893         hbox.addWidget(b)
 894
 895         b = QPushButton(_("OK"))
 896         b.clicked.connect(d.accept)
 897         hbox.addWidget(b)
 898         vbox.addLayout(hbox)
 899         d.setLayout(vbox)
 900         d.exec_()
 901
 902     @staticmethod
 903     def show_seed_qrcode(seed):
 904         if not seed: return
 905         d = QDialog(None)
 906         d.setModal(1)
 907         d.setWindowTitle(_("Seed"))
 908         d.setMinimumSize(270, 300)
 909         vbox = QVBoxLayout()
 910         vbox.addWidget(QRCodeWidget(seed))
 911         hbox = QHBoxLayout()
 912         hbox.addStretch(1)
 913         b = QPushButton(_("OK"))
 914         hbox.addWidget(b)
 915         b.clicked.connect(d.accept)
 916
 917         vbox.addLayout(hbox)
 918         d.setLayout(vbox)
 919         d.exec_()
 920
 921
 922     def show_address_qrcode(self,address):
 923         if not address: return
 924         d = QDialog(self)
 925         d.setModal(1)
 926         d.setWindowTitle(address)
 927         d.setMinimumSize(270, 350)
 928         vbox = QVBoxLayout()
 929         qrw = QRCodeWidget(address)
 930         vbox.addWidget(qrw)
 931
 932         hbox = QHBoxLayout()
 933         amount_e = QLineEdit()
 934         hbox.addWidget(QLabel(_('Amount')))
 935         hbox.addWidget(amount_e)
 936         vbox.addLayout(hbox)
 937
 938         #hbox = QHBoxLayout()
 939         #label_e = QLineEdit()
 940         #hbox.addWidget(QLabel('Label'))
 941         #hbox.addWidget(label_e)
 942         #vbox.addLayout(hbox)
 943
 944         def amount_changed():
 945             amount = numbify(amount_e)
 946             #label = str( label_e.getText() )
 947             if amount is not None:
 948                 qrw.set_addr('bitcoin:%s?amount=%s'%(address,str( Decimal(amount) /100000000)))
 949             else:
 950                 qrw.set_addr( address )
 951             qrw.repaint()
 952
 953         def do_save():
 954             bmp.save_qrcode(qrw.qr, "qrcode.bmp")
 955             self.show_message(_("QR code saved to file") + " 'qrcode.bmp'")
 956
 957         amount_e.textChanged.connect( amount_changed )
 958
 959         hbox = QHBoxLayout()
 960         hbox.addStretch(1)
 961         b = QPushButton(_("Save"))
 962         b.clicked.connect(do_save)
 963         hbox.addWidget(b)
 964         b = QPushButton(_("Close"))
 965         hbox.addWidget(b)
 966         b.clicked.connect(d.accept)
 967
 968         vbox.addLayout(hbox)
 969         d.setLayout(vbox)
 970         d.exec_()
 971
 972     def question(self, msg):
 973         return QMessageBox.question(self, _('Message'), msg, QMessageBox.Yes | QMessageBox.No, QMessageBox.No) == QMessageBox.Yes
 974
 975     def show_message(self, msg):
 976         QMessageBox.information(self, _('Message'), msg, _('OK'))
 977
 978     def password_dialog(self ):
 979         d = QDialog(self)
 980         d.setModal(1)
 981
 982         pw = QLineEdit()
 983         pw.setEchoMode(2)
 984
 985         vbox = QVBoxLayout()
 986         msg = _('Please enter your password')
 987         vbox.addWidget(QLabel(msg))
 988
 989         grid = QGridLayout()
 990         grid.setSpacing(8)
 991         grid.addWidget(QLabel(_('Password')), 1, 0)
 992         grid.addWidget(pw, 1, 1)
 993         vbox.addLayout(grid)
 994
 995         vbox.addLayout(ok_cancel_buttons(d))
 996         d.setLayout(vbox)
 997
 998         if not d.exec_(): return
 999         return unicode(pw.text())
1000
1001
1002     def change_gap_limit_dialog(self):
1003         d = QDialog(self)
1004         d.setModal(1)
1005
1006         vbox = QVBoxLayout()
1007
1008         msg = _('In order to create more addresses, you need to raise your gap limit.') + '\n' \
1009               + _('Your current gap limit is ') + '%d'%self.wallet.gap_limit + '\n' \
1010               + _('The minimum for this wallet is: ') + '%d'%self.wallet.min_acceptable_gap() + '\n'
1011
1012         vbox.addWidget(QLabel(msg))
1013
1014         grid = QGridLayout()
1015         grid.setSpacing(8)
1016         grid.addWidget(QLabel(_('New gap limit: ')), 1, 0)
1017
1018         e = QLineEdit()
1019         grid.addWidget(e, 1, 1)
1020         vbox.addLayout(grid)
1021
1022         vbox.addLayout(ok_cancel_buttons(d))
1023         d.setLayout(vbox)
1024
1025         if not d.exec_(): return
1026         try:
1027             n = int(e.text())
1028         except:
1029             QMessageBox.warning(self, _('Error'), _('Invalid Value'), _('OK'))
1030             return
1031
1032         r = self.wallet.change_gap_limit(n)
1033         if r:
1034             self.update_receive_tab()
1035         else:
1036             QMessageBox.warning(self, _('Error'), _('Invalid Value'), _('OK'))
1037
1038
1039
1040
1041
1042     @staticmethod
1043     def change_password_dialog( wallet, parent=None ):
1044
1045         if not wallet.seed:
1046             QMessageBox.information(parent, _('Error'), _('No seed'), _('OK'))
1047             return
1048
1049         d = QDialog(parent)
1050         d.setModal(1)
1051
1052         pw = QLineEdit()
1053         pw.setEchoMode(2)
1054         new_pw = QLineEdit()
1055         new_pw.setEchoMode(2)
1056         conf_pw = QLineEdit()
1057         conf_pw.setEchoMode(2)
1058
1059         vbox = QVBoxLayout()
1060         if parent:
1061             msg = (_('Your wallet is encrypted. Use this dialog to change your password.')+'\n'+_('To disable wallet encryption, enter an empty new password.')) if wallet.use_encryption else _('Your wallet keys are not encrypted')
1062         else:
1063             msg = _("Please choose a password to encrypt your wallet keys.")+'\n'+_("Leave these fields empty if you want to disable encryption.")
1064         vbox.addWidget(QLabel(msg))
1065
1066         grid = QGridLayout()
1067         grid.setSpacing(8)
1068
1069         if wallet.use_encryption:
1070             grid.addWidget(QLabel(_('Password')), 1, 0)
1071             grid.addWidget(pw, 1, 1)
1072
1073         grid.addWidget(QLabel(_('New Password')), 2, 0)
1074         grid.addWidget(new_pw, 2, 1)
1075
1076         grid.addWidget(QLabel(_('Confirm Password')), 3, 0)
1077         grid.addWidget(conf_pw, 3, 1)
1078         vbox.addLayout(grid)
1079
1080         vbox.addLayout(ok_cancel_buttons(d))
1081         d.setLayout(vbox)
1082
1083         if not d.exec_(): return
1084
1085         password = unicode(pw.text()) if wallet.use_encryption else None
1086         new_password = unicode(new_pw.text())
1087         new_password2 = unicode(conf_pw.text())
1088
1089         try:
1090             seed = wallet.pw_decode( wallet.seed, password)
1091         except:
1092             QMessageBox.warning(parent, _('Error'), _('Incorrect Password'), _('OK'))
1093             return
1094
1095         if new_password != new_password2:
1096             QMessageBox.warning(parent, _('Error'), _('Passwords do not match'), _('OK'))
1097             return
1098
1099         wallet.update_password(seed, password, new_password)
1100
1101     @staticmethod
1102     def seed_dialog(wallet, parent=None):
1103         d = QDialog(parent)
1104         d.setModal(1)
1105
1106         vbox = QVBoxLayout()
1107         msg = _("Please enter your wallet seed or the corresponding mnemonic list of words, and the gap limit of your wallet.")
1108         vbox.addWidget(QLabel(msg))
1109
1110         grid = QGridLayout()
1111         grid.setSpacing(8)
1112
1113         seed_e = QLineEdit()
1114         grid.addWidget(QLabel(_('Seed or mnemonic')), 1, 0)
1115         grid.addWidget(seed_e, 1, 1)
1116
1117         gap_e = QLineEdit()
1118         gap_e.setText("5")
1119         grid.addWidget(QLabel(_('Gap limit')), 2, 0)
1120         grid.addWidget(gap_e, 2, 1)
1121         gap_e.textChanged.connect(lambda: numbify(gap_e,True))
1122         vbox.addLayout(grid)
1123
1124         vbox.addLayout(ok_cancel_buttons(d))
1125         d.setLayout(vbox)
1126
1127         if not d.exec_(): return
1128
1129         try:
1130             gap = int(unicode(gap_e.text()))
1131         except:
1132             QMessageBox.warning(None, _('Error'), 'error', 'OK')
1133             sys.exit(0)
1134
1135         try:
1136             seed = unicode(seed_e.text())
1137             seed.decode('hex')
1138         except:
1139             print "not hex, trying decode"
1140             try:
1141                 seed = mnemonic.mn_decode( seed.split(' ') )
1142             except:
1143                 QMessageBox.warning(None, _('Error'), _('I cannot decode this'), _('OK'))
1144                 sys.exit(0)
1145         if not seed:
1146             QMessageBox.warning(None, _('Error'), _('No seed'), 'OK')
1147             sys.exit(0)
1148
1149         wallet.seed = str(seed)
1150         #print repr(wallet.seed)
1151         wallet.gap_limit = gap
1152         return True
1153
1154
1155     def set_expert_mode(self, b):
1156         self.wallet.expert_mode = b
1157         self.wallet.save()
1158         self.update_receive_tab()
1159         self.update_contacts_tab()
1160
1161
1162
1163     def settings_dialog(self):
1164         d = QDialog(self)
1165         d.setModal(1)
1166
1167         vbox = QVBoxLayout()
1168
1169         msg = _('Here are the settings of your wallet.')
1170         vbox.addWidget(QLabel(msg))
1171
1172         grid = QGridLayout()
1173         grid.setSpacing(8)
1174         vbox.addLayout(grid)
1175
1176         fee_e = QLineEdit()
1177         fee_e.setText("%s"% str( Decimal( self.wallet.fee)/100000000 ) )
1178         grid.addWidget(QLabel(_('Fee per tx. input')), 2, 0)
1179         grid.addWidget(fee_e, 2, 1)
1180         fee_e.textChanged.connect(lambda: numbify(fee_e,False))
1181
1182         nz_e = QLineEdit()
1183         nz_e.setText("%d"% self.wallet.num_zeros)
1184         grid.addWidget(QLabel(_('Zeros displayed after decimal point')), 3, 0)
1185         grid.addWidget(nz_e, 3, 1)
1186         nz_e.textChanged.connect(lambda: numbify(nz_e,True))
1187
1188         cb = QCheckBox('Expert mode')
1189         grid.addWidget(cb,4,0)
1190         cb.setChecked(self.wallet.expert_mode)
1191
1192         vbox.addLayout(ok_cancel_buttons(d))
1193         d.setLayout(vbox)
1194
1195         if not d.exec_(): return
1196
1197         self.set_expert_mode(cb.isChecked())
1198
1199         fee = unicode(fee_e.text())
1200         try:
1201             fee = int( 100000000 * Decimal(fee) )
1202         except:
1203             QMessageBox.warning(self, _('Error'), _('Invalid value') +': %s'%fee, _('OK'))
1204             return
1205
1206         if self.wallet.fee != fee:
1207             self.wallet.fee = fee
1208             self.wallet.save()
1209
1210         nz = unicode(nz_e.text())
1211         try:
1212             nz = int( nz )
1213             if nz>8: nz=8
1214         except:
1215             QMessageBox.warning(self, _('Error'), _('Invalid value')+':%s'%nz, _('OK'))
1216             return
1217
1218         if self.wallet.num_zeros != nz:
1219             self.wallet.num_zeros = nz
1220             self.update_history_tab()
1221             self.update_receive_tab()
1222             self.wallet.save()
1223
1224     @staticmethod
1225     def network_dialog(wallet, parent=None):
1226         interface = wallet.interface
1227         if parent:
1228             if interface.is_connected:
1229                 status = _("Connected to")+" %s:%d\n%d blocks"%(interface.host, interface.port, wallet.blocks)
1230             else:
1231                 status = _("Not connected")
1232             server = wallet.server
1233         else:
1234             import random
1235             status = _("Please choose a server.")
1236             server = random.choice( DEFAULT_SERVERS )
1237
1238         if not wallet.interface.servers:
1239             servers_list = []
1240             for x in DEFAULT_SERVERS:
1241                 h,port,protocol = x.split(':')
1242                 servers_list.append( (h,[(protocol,port)] ) )
1243         else:
1244             servers_list = wallet.interface.servers
1245
1246         plist = {}
1247         for item in servers_list:
1248             host, pp = item
1249             z = {}
1250             for item2 in pp:
1251                 protocol, port = item2
1252                 z[protocol] = port
1253             plist[host] = z
1254
1255         d = QDialog(parent)
1256         d.setModal(1)
1257         d.setWindowTitle(_('Server'))
1258         d.setMinimumSize(375, 20)
1259
1260         vbox = QVBoxLayout()
1261         vbox.setSpacing(20)
1262
1263         hbox = QHBoxLayout()
1264         l = QLabel()
1265         l.setPixmap(QPixmap(":icons/network.png"))
1266         hbox.addWidget(l)
1267         hbox.addWidget(QLabel(status))
1268
1269         vbox.addLayout(hbox)
1270
1271         hbox = QHBoxLayout()
1272         host_line = QLineEdit()
1273         host_line.setText(server)
1274         hbox.addWidget(QLabel(_('Connect to') + ':'))
1275         hbox.addWidget(host_line)
1276         vbox.addLayout(hbox)
1277
1278         hbox = QHBoxLayout()
1279
1280         buttonGroup = QGroupBox(_("Protocol"))
1281         radio1 = QRadioButton("tcp", buttonGroup)
1282         radio2 = QRadioButton("http", buttonGroup)
1283
1284         def current_line():
1285             return unicode(host_line.text()).split(':')
1286
1287         def set_button(protocol):
1288             if protocol == 't':
1289                 radio1.setChecked(1)
1290             elif protocol == 'h':
1291                 radio2.setChecked(1)
1292
1293         def set_protocol(protocol):
1294             host = current_line()[0]
1295             pp = plist[host]
1296             if protocol not in pp.keys():
1297                 protocol = pp.keys()[0]
1298                 set_button(protocol)
1299             port = pp[protocol]
1300             host_line.setText( host + ':' + port + ':' + protocol)
1301
1302         radio1.clicked.connect(lambda x: set_protocol('t') )
1303         radio2.clicked.connect(lambda x: set_protocol('h') )
1304
1305         set_button(current_line()[2])
1306
1307         hbox.addWidget(QLabel(_('Protocol')+':'))
1308         hbox.addWidget(radio1)
1309         hbox.addWidget(radio2)
1310
1311         vbox.addLayout(hbox)
1312
1313         if wallet.interface.servers:
1314             label = _('Active Servers')
1315         else:
1316             label = _('Default Servers')
1317
1318         servers_list_widget = QTreeWidget(parent)
1319         servers_list_widget.setHeaderLabels( [ label ] )
1320         servers_list_widget.setMaximumHeight(150)
1321         for host in plist.keys():
1322             servers_list_widget.addTopLevelItem(QTreeWidgetItem( [ host ] ))
1323
1324         def do_set_line(x):
1325             host = unicode(x.text(0))
1326             pp = plist[host]
1327             if 't' in pp.keys():
1328                 protocol = 't'
1329             else:
1330                 protocol = pp.keys()[0]
1331             port = pp[protocol]
1332             host_line.setText( host + ':' + port + ':' + protocol)
1333             set_button(protocol)
1334
1335         servers_list_widget.connect(servers_list_widget, SIGNAL('itemClicked(QTreeWidgetItem*, int)'), do_set_line)
1336         vbox.addWidget(servers_list_widget)
1337
1338         vbox.addLayout(ok_cancel_buttons(d))
1339         d.setLayout(vbox)
1340
1341         if not d.exec_(): return
1342         server = unicode( host_line.text() )
1343
1344         try:
1345             wallet.set_server(server)
1346         except:
1347             QMessageBox.information(None, _('Error'), 'error', _('OK'))
1348             if parent == None:
1349                 sys.exit(1)
1350             else:
1351                 return
1352
1353         return True
1354
1355
1356
1357 class ElectrumGui():
1358
1359     def __init__(self, wallet):
1360         self.wallet = wallet
1361         self.app = QApplication(sys.argv)
1362
1363     def waiting_dialog(self):
1364
1365         s = Timer()
1366         s.start()
1367         w = QDialog()
1368         w.resize(200, 70)
1369         w.setWindowTitle('Electrum')
1370         l = QLabel('')
1371         vbox = QVBoxLayout()
1372         vbox.addWidget(l)
1373         w.setLayout(vbox)
1374         w.show()
1375         def f():
1376             if self.wallet.up_to_date:
1377                 w.close()
1378             else:
1379                 l.setText("Please wait...\nAddresses generated: %d\nKilobytes received: %.1f"\
1380                               %(len(self.wallet.all_addresses()), self.wallet.interface.bytes_received/1024.))
1381
1382         w.connect(s, QtCore.SIGNAL('timersignal'), f)
1383         self.wallet.interface.poke()
1384         w.exec_()
1385         w.destroy()
1386
1387
1388     def restore_or_create(self):
1389
1390         msg = _("Wallet file not found.")+"\n"+_("Do you want to create a new wallet, or to restore an existing one?")
1391         r = QMessageBox.question(None, _('Message'), msg, _('Create'), _('Restore'), _('Cancel'), 0, 2)
1392         if r==2: return False
1393
1394         is_recovery = (r==1)
1395         wallet = self.wallet
1396         # ask for the server.
1397         if not ElectrumWindow.network_dialog( wallet, parent=None ): return False
1398
1399         if not is_recovery:
1400             wallet.new_seed(None)
1401             wallet.init_mpk( wallet.seed )
1402             wallet.up_to_date_event.clear()
1403             wallet.up_to_date = False
1404             self.waiting_dialog()
1405             # run a dialog indicating the seed, ask the user to remember it
1406             ElectrumWindow.show_seed_dialog(wallet)
1407             #ask for password
1408             ElectrumWindow.change_password_dialog(wallet)
1409         else:
1410             # ask for seed and gap.
1411             if not ElectrumWindow.seed_dialog( wallet ): return False
1412             wallet.init_mpk( wallet.seed )
1413             wallet.up_to_date_event.clear()
1414             wallet.up_to_date = False
1415             self.waiting_dialog()
1416             if wallet.is_found():
1417                 # history and addressbook
1418                 wallet.update_tx_history()
1419                 wallet.fill_addressbook()
1420                 print "recovery successful"
1421                 wallet.save()
1422             else:
1423                 QMessageBox.information(None, _('Error'), _("No transactions found for this seed"), _('OK'))
1424
1425         wallet.save()
1426         return True
1427
1428     def main(self,url):
1429         s = Timer()
1430         s.start()
1431         w = ElectrumWindow(self.wallet)
1432         if url: w.set_url(url)
1433         w.app = self.app
1434         w.connect_slots(s)
1435         w.update_wallet()
1436
1437         self.app.exec_()