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
 196
 197     def connect_slots(self, sender):
 198         if self.wallet.seed:
 199             self.connect(sender, QtCore.SIGNAL('timersignal'), self.check_recipient)
 200             self.previous_payto_e=''
 201
 202     def check_recipient(self):
 203         if self.payto_e.hasFocus():
 204             return
 205         r = unicode( self.payto_e.text() )
 206         if r != self.previous_payto_e:
 207             self.previous_payto_e = r
 208             r = r.strip()
 209             if re.match('^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$', r):
 210                 try:
 211                     to_address = self.wallet.get_alias(r, True, self.show_message, self.question)
 212                 except:
 213                     return
 214                 if to_address:
 215                     s = r + '  <' + to_address + '>'
 216                     self.payto_e.setText(s)
 217
 218
 219     def update_callback(self):
 220         self.emit(QtCore.SIGNAL('updatesignal'))
 221
 222     def update_wallet(self):
 223         if self.wallet.interface and self.wallet.interface.is_connected:
 224             if self.wallet.blocks == -1:
 225                 text = _( "Connecting..." )
 226                 icon = QIcon(":icons/status_disconnected.png")
 227             elif self.wallet.blocks == 0:
 228                 text = _( "Server not ready" )
 229                 icon = QIcon(":icons/status_disconnected.png")
 230             elif not self.wallet.up_to_date:
 231                 text = _( "Synchronizing..." )
 232                 icon = QIcon(":icons/status_waiting.png")
 233             else:
 234                 c, u = self.wallet.get_balance()
 235                 text =  _( "Balance" ) + ": %s "%( format_satoshis(c,False,self.wallet.num_zeros) )
 236                 if u: text +=  "[%s unconfirmed]"%( format_satoshis(u,True,self.wallet.num_zeros).strip() )
 237                 icon = QIcon(":icons/status_connected.png")
 238         else:
 239             text = _( "Not connected" )
 240             icon = QIcon(":icons/status_disconnected.png")
 241
 242         if self.funds_error:
 243             text = _( "Not enough funds" )
 244
 245         self.statusBar().showMessage(text)
 246         self.status_button.setIcon( icon )
 247
 248         if self.wallet.up_to_date:
 249             self.textbox.setText( self.wallet.banner )
 250             self.update_history_tab()
 251             self.update_receive_tab()
 252             self.update_contacts_tab()
 253             self.update_completions()
 254
 255
 256     def create_history_tab(self):
 257         self.history_list = l = MyTreeWidget(self)
 258         l.setColumnCount(5)
 259         l.setColumnWidth(0, 40)
 260         l.setColumnWidth(1, 140)
 261         l.setColumnWidth(2, 350)
 262         l.setColumnWidth(3, 140)
 263         l.setColumnWidth(4, 140)
 264         l.setHeaderLabels( [ '', _( 'Date' ), _( 'Description' ) , _('Amount'), _('Balance')] )
 265         self.connect(l, SIGNAL('itemDoubleClicked(QTreeWidgetItem*, int)'), self.tx_label_clicked)
 266         self.connect(l, SIGNAL('itemChanged(QTreeWidgetItem*, int)'), self.tx_label_changed)
 267         l.setContextMenuPolicy(Qt.CustomContextMenu)
 268         l.customContextMenuRequested.connect(self.create_history_menu)
 269         return l
 270
 271     def create_history_menu(self, position):
 272         self.history_list.selectedIndexes()
 273         item = self.history_list.currentItem()
 274         if not item: return
 275         menu = QMenu()
 276         menu.addAction(_("Details"), lambda: self.tx_details(item,2))
 277         menu.addAction(_("Edit description"), lambda: self.tx_label_clicked(item,2))
 278         menu.exec_(self.contacts_list.viewport().mapToGlobal(position))
 279
 280     def tx_details(self, item, column):
 281         tx_hash = str(item.toolTip(0))
 282         tx = self.wallet.tx_history.get(tx_hash)
 283
 284         if tx['height']:
 285             conf = self.wallet.blocks - tx['height'] + 1
 286             time_str = datetime.datetime.fromtimestamp( tx['timestamp']).isoformat(' ')[:-3]
 287         else:
 288             conf = 0
 289             time_str = 'pending'
 290
 291         tx_details = _("Transaction Details") +"\n\n" \
 292             + "Transaction ID:\n" + tx_hash + "\n\n" \
 293             + "Status: %d confirmations\n\n"%conf  \
 294             + "Date: %s\n\n"%time_str \
 295             + "Inputs:\n-"+ '\n-'.join(tx['inputs']) + "\n\n" \
 296             + "Outputs:\n-"+ '\n-'.join(tx['outputs'])
 297
 298         r = self.wallet.receipts.get(tx_hash)
 299         if r:
 300             tx_details += "\n_______________________________________" \
 301                 + '\n\nSigned URI: ' + r[2] \
 302                 + "\n\nSigned by: " + r[0] \
 303                 + '\n\nSignature: ' + r[1]
 304
 305         QMessageBox.information(self, 'Details', tx_details, 'OK')
 306
 307
 308     def tx_label_clicked(self, item, column):
 309         if column==2 and item.isSelected():
 310             tx_hash = str(item.toolTip(0))
 311             self.is_edit=True
 312             #if not self.wallet.labels.get(tx_hash): item.setText(2,'')
 313             item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 314             self.history_list.editItem( item, column )
 315             item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 316             self.is_edit=False
 317
 318     def tx_label_changed(self, item, column):
 319         if self.is_edit:
 320             return
 321         self.is_edit=True
 322         tx_hash = str(item.toolTip(0))
 323         tx = self.wallet.tx_history.get(tx_hash)
 324         s = self.wallet.labels.get(tx_hash)
 325         text = unicode( item.text(2) )
 326         if text:
 327             self.wallet.labels[tx_hash] = text
 328             item.setForeground(2, QBrush(QColor('black')))
 329         else:
 330             if s: self.wallet.labels.pop(tx_hash)
 331             text = tx['default_label']
 332             item.setText(2, text)
 333             item.setForeground(2, QBrush(QColor('gray')))
 334         self.is_edit=False
 335
 336     def edit_label(self, is_recv):
 337         l = self.receive_list if is_recv else self.contacts_list
 338         c = 2 if is_recv else 1
 339         item = l.currentItem()
 340         item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 341         l.editItem( item, c )
 342         item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 343
 344     def address_label_clicked(self, item, column, l, column_addr, column_label):
 345         if column==column_label and item.isSelected():
 346             addr = unicode( item.text(column_addr) )
 347             label = unicode( item.text(column_label) )
 348             if label in self.wallet.aliases.keys():
 349                 return
 350             item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 351             l.editItem( item, column )
 352             item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 353
 354     def address_label_changed(self, item, column, l, column_addr, column_label):
 355         addr = unicode( item.text(column_addr) )
 356         text = unicode( item.text(column_label) )
 357         if text:
 358             if text not in self.wallet.aliases.keys():
 359                 self.wallet.labels[addr] = text
 360             else:
 361                 print "error: this is one of your aliases"
 362                 label = self.wallet.labels.get(addr,'')
 363                 item.setText(column_label, QString(label))
 364         else:
 365             s = self.wallet.labels.get(addr)
 366             if s: self.wallet.labels.pop(addr)
 367
 368         self.update_history_tab()
 369         self.update_completions()
 370
 371     def update_history_tab(self):
 372         self.history_list.clear()
 373         balance = 0
 374         for tx in self.wallet.get_tx_history():
 375             tx_hash = tx['tx_hash']
 376             if tx['height']:
 377                 conf = self.wallet.blocks - tx['height'] + 1
 378                 time_str = datetime.datetime.fromtimestamp( tx['timestamp']).isoformat(' ')[:-3]
 379                 icon = QIcon(":icons/confirmed.png")
 380             else:
 381                 conf = 0
 382                 time_str = 'pending'
 383                 icon = QIcon(":icons/unconfirmed.png")
 384             v = tx['value']
 385             balance += v
 386             label = self.wallet.labels.get(tx_hash)
 387             is_default_label = (label == '') or (label is None)
 388             if is_default_label: label = tx['default_label']
 389
 390             item = QTreeWidgetItem( [ '', time_str, label, format_satoshis(v,True,self.wallet.num_zeros), format_satoshis(balance,False,self.wallet.num_zeros)] )
 391             item.setFont(2, QFont(MONOSPACE_FONT))
 392             item.setFont(3, QFont(MONOSPACE_FONT))
 393             item.setFont(4, QFont(MONOSPACE_FONT))
 394             item.setToolTip(0, tx_hash)
 395             if is_default_label:
 396                 item.setForeground(2, QBrush(QColor('grey')))
 397
 398             item.setIcon(0, icon)
 399             self.history_list.insertTopLevelItem(0,item)
 400
 401         self.history_list.setCurrentItem(self.history_list.topLevelItem(0))
 402         self.history_list.setFocus(True)
 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
 634         self.new_address_button = EnterButton(_("New"), self.change_gap_limit_dialog)
 635         self.new_address_button.setHidden(not self.wallet.expert_mode)
 636         hbox.addWidget(self.new_address_button)
 637         hbox.addStretch(1)
 638
 639         return w
 640
 641
 642     def create_contacts_tab(self):
 643         l,w,hbox = self.create_list_tab([_('Address'), _('Label'), _('Tx')])
 644         l.setContextMenuPolicy(Qt.CustomContextMenu)
 645         l.customContextMenuRequested.connect(self.create_contact_menu)
 646         self.connect(l, SIGNAL('itemDoubleClicked(QTreeWidgetItem*, int)'), lambda a, b: self.address_label_clicked(a,b,l,0,1))
 647         self.connect(l, SIGNAL('itemChanged(QTreeWidgetItem*, int)'), lambda a,b: self.address_label_changed(a,b,l,0,1))
 648         self.contacts_list = l
 649         self.contacts_buttons_hbox = hbox
 650         hbox.addWidget(EnterButton(_("New"), self.new_contact_dialog))
 651         hbox.addStretch(1)
 652         return w
 653
 654
 655     def create_receive_menu(self, position):
 656         # fixme: this function apparently has a side effect.
 657         # if it is not called the menu pops up several times
 658         #self.receive_list.selectedIndexes()
 659
 660         item = self.receive_list.itemAt(position)
 661         addr = unicode(item.text(1))
 662         menu = QMenu()
 663         menu.addAction(_("Copy to Clipboard"), lambda: self.app.clipboard().setText(addr))
 664         menu.addAction(_("View QR code"),lambda: self.show_address_qrcode(addr))
 665         menu.addAction(_("Edit label"), lambda: self.edit_label(True))
 666         if self.wallet.expert_mode:
 667             t = _("Unfreeze") if addr in self.wallet.frozen_addresses else _("Freeze")
 668             menu.addAction(t, lambda: self.toggle_freeze(addr))
 669             t = _("Unprioritize") if addr in self.wallet.prioritized_addresses else _("Prioritize")
 670             menu.addAction(t, lambda: self.toggle_priority(addr))
 671         menu.exec_(self.receive_list.viewport().mapToGlobal(position))
 672
 673
 674     def payto(self, addr):
 675         if not addr: return
 676         label = self.wallet.labels.get(addr)
 677         m_addr = label + '  <' + addr + '>' if label else addr
 678         self.tabs.setCurrentIndex(1)
 679         self.payto_e.setText(m_addr)
 680         self.amount_e.setFocus()
 681
 682     def delete_contact(self, addr, is_alias):
 683         if self.question("Do you want to remove %s from your list of contacts?"%addr):
 684             if not is_alias and addr in self.wallet.addressbook:
 685                 self.wallet.addressbook.remove(addr)
 686                 if addr in self.wallet.labels.keys():
 687                     self.wallet.labels.pop(addr)
 688             elif is_alias and addr in self.wallet.aliases:
 689                 self.wallet.aliases.pop(addr)
 690             self.update_history_tab()
 691             self.update_contacts_tab()
 692             self.update_completions()
 693
 694     def create_contact_menu(self, position):
 695         # fixme: this function apparently has a side effect.
 696         # if it is not called the menu pops up several times
 697         #self.contacts_list.selectedIndexes()
 698
 699         item = self.contacts_list.itemAt(position)
 700         if not item: return
 701         addr = unicode(item.text(0))
 702         menu = QMenu()
 703         menu.addAction(_("Pay to"), lambda: self.payto(addr))
 704         menu.addAction(_("Copy to Clipboard"), lambda: self.app.clipboard().setText(addr))
 705         menu.addAction(_("View QR code"),lambda: self.show_address_qrcode(addr))
 706         label = unicode( item.text(1) )
 707         if label not in self.wallet.aliases.keys():
 708             menu.addAction(_("Edit label"), lambda: self.edit_label(False))
 709             menu.addAction(_("Delete"), lambda: self.delete_contact(addr,False))
 710         else:
 711             menu.addAction(_("View alias details"), lambda: self.show_contact_details(label))
 712             menu.addAction(_("Delete"), lambda: self.delete_contact(label,True))
 713         menu.exec_(self.contacts_list.viewport().mapToGlobal(position))
 714
 715
 716     def update_receive_tab(self):
 717         l = self.receive_list
 718         l.clear()
 719         l.setColumnHidden(0,not self.wallet.expert_mode)
 720         l.setColumnHidden(3,not self.wallet.expert_mode)
 721         l.setColumnHidden(4,not self.wallet.expert_mode)
 722         l.setColumnWidth(0, 50)
 723         l.setColumnWidth(1, 310)
 724         l.setColumnWidth(2, 300)
 725         l.setColumnWidth(3, 90)
 726         l.setColumnWidth(4, 10)
 727
 728         self.new_address_button.setHidden(not self.wallet.expert_mode)
 729         gap = 0
 730         is_red = False
 731         for address in self.wallet.all_addresses():
 732
 733             if self.wallet.is_change(address) and not self.wallet.expert_mode:
 734                 continue
 735
 736             label = self.wallet.labels.get(address,'')
 737             n = 0
 738             h = self.wallet.history.get(address,[])
 739             for item in h:
 740                 if not item['is_input'] : n=n+1
 741
 742             if n==0:
 743                 tx = "None"
 744                 if address in self.wallet.addresses:
 745                     gap += 1
 746                     if gap > self.wallet.gap_limit:
 747                         is_red = True
 748             else:
 749                 tx = "%d"%n
 750                 if address in self.wallet.addresses:
 751                     gap = 0
 752
 753             c, u = self.wallet.get_addr_balance(address)
 754             balance = format_satoshis( c + u, False, self.wallet.num_zeros )
 755             flags = self.wallet.get_address_flags(address)
 756             item = QTreeWidgetItem( [ flags, address, label, balance, tx] )
 757
 758             item.setFont(0, QFont(MONOSPACE_FONT))
 759             item.setFont(1, QFont(MONOSPACE_FONT))
 760             if address in self.wallet.frozen_addresses:
 761                 item.setBackgroundColor(1, QColor('lightblue'))
 762             elif address in self.wallet.prioritized_addresses:
 763                 item.setBackgroundColor(1, QColor('lightgreen'))
 764             if is_red and address in self.wallet.addresses:
 765                 item.setBackgroundColor(1, QColor('red'))
 766
 767             l.addTopLevelItem(item)
 768
 769         l.setCurrentItem(l.topLevelItem(0))
 770
 771     def show_contact_details(self, m):
 772         a = self.wallet.aliases.get(m)
 773         if a:
 774             if a[0] in self.wallet.authorities.keys():
 775                 s = self.wallet.authorities.get(a[0])
 776             else:
 777                 s = "self-signed"
 778             msg = 'Alias: '+ m + '\nTarget address: '+ a[1] + '\n\nSigned by: ' + s + '\nSigning address:' + a[0]
 779             QMessageBox.information(self, 'Alias', msg, 'OK')
 780
 781     def update_contacts_tab(self):
 782
 783         l = self.contacts_list
 784         l.clear()
 785         l.setColumnHidden(2, not self.wallet.expert_mode)
 786         l.setColumnWidth(0, 350)
 787         l.setColumnWidth(1, 330)
 788         l.setColumnWidth(2, 100)
 789
 790         alias_targets = []
 791         for alias, v in self.wallet.aliases.items():
 792             s, target = v
 793             alias_targets.append(target)
 794             item = QTreeWidgetItem( [ target, alias, '-'] )
 795             item.setBackgroundColor(1, QColor('lightgray'))
 796             l.addTopLevelItem(item)
 797
 798         for address in self.wallet.addressbook:
 799             if address in alias_targets: continue
 800             label = self.wallet.labels.get(address,'')
 801             n = 0
 802             for item in self.wallet.tx_history.values():
 803                 if address in item['outputs'] : n=n+1
 804             tx = "None" if n==0 else "%d"%n
 805             item = QTreeWidgetItem( [ address, label, tx] )
 806             item.setFont(0, QFont(MONOSPACE_FONT))
 807             l.addTopLevelItem(item)
 808
 809         l.setCurrentItem(l.topLevelItem(0))
 810
 811     def create_wall_tab(self):
 812         self.textbox = textbox = QTextEdit(self)
 813         textbox.setFont(QFont(MONOSPACE_FONT))
 814         textbox.setReadOnly(True)
 815         return textbox
 816
 817     def create_status_bar(self):
 818         sb = QStatusBar()
 819         sb.setFixedHeight(35)
 820         if self.wallet.seed:
 821             sb.addPermanentWidget( StatusBarButton( QIcon(":icons/lock.png"), "Password", lambda: self.change_password_dialog(self.wallet, self) ) )
 822         sb.addPermanentWidget( StatusBarButton( QIcon(":icons/preferences.png"), "Preferences", self.settings_dialog ) )
 823         if self.wallet.seed:
 824             sb.addPermanentWidget( StatusBarButton( QIcon(":icons/seed.png"), "Seed", lambda: self.show_seed_dialog(self.wallet, self) ) )
 825         self.status_button = StatusBarButton( QIcon(":icons/status_disconnected.png"), "Network", lambda: self.network_dialog(self.wallet, self) )
 826         sb.addPermanentWidget( self.status_button )
 827         self.setStatusBar(sb)
 828
 829     def new_contact_dialog(self):
 830         text, ok = QInputDialog.getText(self, _('New Contact'), _('Address') + ':')
 831         address = unicode(text)
 832         if ok:
 833             if self.wallet.is_valid(address):
 834                 self.wallet.addressbook.append(address)
 835                 self.wallet.save()
 836                 self.update_contacts_tab()
 837                 self.update_history_tab()
 838                 self.update_completions()
 839             else:
 840                 QMessageBox.warning(self, _('Error'), _('Invalid Address'), _('OK'))
 841
 842     @staticmethod
 843     def show_seed_dialog(wallet, parent=None):
 844
 845         if not wallet.seed:
 846             QMessageBox.information(parent, _('Message'), _('No seed'), _('OK'))
 847             return
 848
 849         if wallet.use_encryption:
 850             password = parent.password_dialog()
 851             if not password: return
 852         else:
 853             password = None
 854
 855         try:
 856             seed = wallet.pw_decode( wallet.seed, password)
 857         except:
 858             QMessageBox.warning(parent, _('Error'), _('Incorrect Password'), _('OK'))
 859             return
 860
 861         msg = _("Your wallet generation seed is") + ":\n\n" + seed + "\n\n"\
 862               + _("Please keep it in a safe place; if you lose it, you will not be able to restore your wallet.") + "\n\n" \
 863               + _("Equivalently, your wallet seed can be stored and recovered with the following mnemonic code") + ":\n\n\"" \
 864               + ' '.join(mnemonic.mn_encode(seed)) + "\"\n\n\n"
 865
 866         d = QDialog(None)
 867         d.setModal(1)
 868         d.setWindowTitle(_("Seed"))
 869         d.setMinimumSize(400, 270)
 870
 871         vbox = QVBoxLayout()
 872         hbox = QHBoxLayout()
 873         vbox2 = QVBoxLayout()
 874         l = QLabel()
 875         l.setPixmap(QPixmap(":icons/seed.png").scaledToWidth(56))
 876         vbox2.addWidget(l)
 877         vbox2.addStretch(1)
 878         hbox.addLayout(vbox2)
 879         hbox.addWidget(QLabel(msg))
 880         vbox.addLayout(hbox)
 881
 882         hbox = QHBoxLayout()
 883         hbox.addStretch(1)
 884
 885
 886         if parent:
 887             app = parent.app
 888         else:
 889             app = QApplication
 890
 891         b = QPushButton(_("Copy to Clipboard"))
 892         b.clicked.connect(lambda: app.clipboard().setText(seed + ' "' + ' '.join(mnemonic.mn_encode(seed))+'"'))
 893         hbox.addWidget(b)
 894         b = QPushButton(_("View as QR Code"))
 895         b.clicked.connect(lambda: ElectrumWindow.show_seed_qrcode(seed))
 896         hbox.addWidget(b)
 897
 898         b = QPushButton(_("OK"))
 899         b.clicked.connect(d.accept)
 900         hbox.addWidget(b)
 901         vbox.addLayout(hbox)
 902         d.setLayout(vbox)
 903         d.exec_()
 904
 905     @staticmethod
 906     def show_seed_qrcode(seed):
 907         if not seed: return
 908         d = QDialog(None)
 909         d.setModal(1)
 910         d.setWindowTitle(_("Seed"))
 911         d.setMinimumSize(270, 300)
 912         vbox = QVBoxLayout()
 913         vbox.addWidget(QRCodeWidget(seed))
 914         hbox = QHBoxLayout()
 915         hbox.addStretch(1)
 916         b = QPushButton(_("OK"))
 917         hbox.addWidget(b)
 918         b.clicked.connect(d.accept)
 919
 920         vbox.addLayout(hbox)
 921         d.setLayout(vbox)
 922         d.exec_()
 923
 924
 925     def show_address_qrcode(self,address):
 926         if not address: return
 927         d = QDialog(self)
 928         d.setModal(1)
 929         d.setWindowTitle(address)
 930         d.setMinimumSize(270, 350)
 931         vbox = QVBoxLayout()
 932         qrw = QRCodeWidget(address)
 933         vbox.addWidget(qrw)
 934
 935         hbox = QHBoxLayout()
 936         amount_e = QLineEdit()
 937         hbox.addWidget(QLabel(_('Amount')))
 938         hbox.addWidget(amount_e)
 939         vbox.addLayout(hbox)
 940
 941         #hbox = QHBoxLayout()
 942         #label_e = QLineEdit()
 943         #hbox.addWidget(QLabel('Label'))
 944         #hbox.addWidget(label_e)
 945         #vbox.addLayout(hbox)
 946
 947         def amount_changed():
 948             amount = numbify(amount_e)
 949             #label = str( label_e.getText() )
 950             if amount is not None:
 951                 qrw.set_addr('bitcoin:%s?amount=%s'%(address,str( Decimal(amount) /100000000)))
 952             else:
 953                 qrw.set_addr( address )
 954             qrw.repaint()
 955
 956         def do_save():
 957             bmp.save_qrcode(qrw.qr, "qrcode.bmp")
 958             self.show_message(_("QR code saved to file") + " 'qrcode.bmp'")
 959
 960         amount_e.textChanged.connect( amount_changed )
 961
 962         hbox = QHBoxLayout()
 963         hbox.addStretch(1)
 964         b = QPushButton(_("Save"))
 965         b.clicked.connect(do_save)
 966         hbox.addWidget(b)
 967         b = QPushButton(_("Close"))
 968         hbox.addWidget(b)
 969         b.clicked.connect(d.accept)
 970
 971         vbox.addLayout(hbox)
 972         d.setLayout(vbox)
 973         d.exec_()
 974
 975     def question(self, msg):
 976         return QMessageBox.question(self, _('Message'), msg, QMessageBox.Yes | QMessageBox.No, QMessageBox.No) == QMessageBox.Yes
 977
 978     def show_message(self, msg):
 979         QMessageBox.information(self, _('Message'), msg, _('OK'))
 980
 981     def password_dialog(self ):
 982         d = QDialog(self)
 983         d.setModal(1)
 984
 985         pw = QLineEdit()
 986         pw.setEchoMode(2)
 987
 988         vbox = QVBoxLayout()
 989         msg = _('Please enter your password')
 990         vbox.addWidget(QLabel(msg))
 991
 992         grid = QGridLayout()
 993         grid.setSpacing(8)
 994         grid.addWidget(QLabel(_('Password')), 1, 0)
 995         grid.addWidget(pw, 1, 1)
 996         vbox.addLayout(grid)
 997
 998         vbox.addLayout(ok_cancel_buttons(d))
 999         d.setLayout(vbox)
1000
1001         if not d.exec_(): return
1002         return unicode(pw.text())
1003
1004
1005     def change_gap_limit_dialog(self):
1006         d = QDialog(self)
1007         d.setModal(1)
1008
1009         vbox = QVBoxLayout()
1010
1011         msg = _('In order to create more addresses, you need to raise your gap limit.') + '\n' \
1012               + _('Your current gap limit is ') + '%d'%self.wallet.gap_limit + '\n' \
1013               + _('The minimum for this wallet is: ') + '%d'%self.wallet.min_acceptable_gap() + '\n'
1014
1015         vbox.addWidget(QLabel(msg))
1016
1017         grid = QGridLayout()
1018         grid.setSpacing(8)
1019         grid.addWidget(QLabel(_('New gap limit: ')), 1, 0)
1020
1021         e = QLineEdit()
1022         grid.addWidget(e, 1, 1)
1023         vbox.addLayout(grid)
1024
1025         vbox.addLayout(ok_cancel_buttons(d))
1026         d.setLayout(vbox)
1027
1028         if not d.exec_(): return
1029         try:
1030             n = int(e.text())
1031         except:
1032             QMessageBox.warning(self, _('Error'), _('Invalid Value'), _('OK'))
1033             return
1034
1035         r = self.wallet.change_gap_limit(n)
1036         if r:
1037             self.update_receive_tab()
1038         else:
1039             QMessageBox.warning(self, _('Error'), _('Invalid Value'), _('OK'))
1040
1041
1042
1043
1044
1045     @staticmethod
1046     def change_password_dialog( wallet, parent=None ):
1047
1048         if not wallet.seed:
1049             QMessageBox.information(parent, _('Error'), _('No seed'), _('OK'))
1050             return
1051
1052         d = QDialog(parent)
1053         d.setModal(1)
1054
1055         pw = QLineEdit()
1056         pw.setEchoMode(2)
1057         new_pw = QLineEdit()
1058         new_pw.setEchoMode(2)
1059         conf_pw = QLineEdit()
1060         conf_pw.setEchoMode(2)
1061
1062         vbox = QVBoxLayout()
1063         if parent:
1064             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')
1065         else:
1066             msg = _("Please choose a password to encrypt your wallet keys.")+'\n'+_("Leave these fields empty if you want to disable encryption.")
1067         vbox.addWidget(QLabel(msg))
1068
1069         grid = QGridLayout()
1070         grid.setSpacing(8)
1071
1072         if wallet.use_encryption:
1073             grid.addWidget(QLabel(_('Password')), 1, 0)
1074             grid.addWidget(pw, 1, 1)
1075
1076         grid.addWidget(QLabel(_('New Password')), 2, 0)
1077         grid.addWidget(new_pw, 2, 1)
1078
1079         grid.addWidget(QLabel(_('Confirm Password')), 3, 0)
1080         grid.addWidget(conf_pw, 3, 1)
1081         vbox.addLayout(grid)
1082
1083         vbox.addLayout(ok_cancel_buttons(d))
1084         d.setLayout(vbox)
1085
1086         if not d.exec_(): return
1087
1088         password = unicode(pw.text()) if wallet.use_encryption else None
1089         new_password = unicode(new_pw.text())
1090         new_password2 = unicode(conf_pw.text())
1091
1092         try:
1093             seed = wallet.pw_decode( wallet.seed, password)
1094         except:
1095             QMessageBox.warning(parent, _('Error'), _('Incorrect Password'), _('OK'))
1096             return
1097
1098         if new_password != new_password2:
1099             QMessageBox.warning(parent, _('Error'), _('Passwords do not match'), _('OK'))
1100             return
1101
1102         wallet.update_password(seed, password, new_password)
1103
1104     @staticmethod
1105     def seed_dialog(wallet, parent=None):
1106         d = QDialog(parent)
1107         d.setModal(1)
1108
1109         vbox = QVBoxLayout()
1110         msg = _("Please enter your wallet seed or the corresponding mnemonic list of words, and the gap limit of your wallet.")
1111         vbox.addWidget(QLabel(msg))
1112
1113         grid = QGridLayout()
1114         grid.setSpacing(8)
1115
1116         seed_e = QLineEdit()
1117         grid.addWidget(QLabel(_('Seed or mnemonic')), 1, 0)
1118         grid.addWidget(seed_e, 1, 1)
1119
1120         gap_e = QLineEdit()
1121         gap_e.setText("5")
1122         grid.addWidget(QLabel(_('Gap limit')), 2, 0)
1123         grid.addWidget(gap_e, 2, 1)
1124         gap_e.textChanged.connect(lambda: numbify(gap_e,True))
1125         vbox.addLayout(grid)
1126
1127         vbox.addLayout(ok_cancel_buttons(d))
1128         d.setLayout(vbox)
1129
1130         if not d.exec_(): return
1131
1132         try:
1133             gap = int(unicode(gap_e.text()))
1134         except:
1135             QMessageBox.warning(None, _('Error'), 'error', 'OK')
1136             sys.exit(0)
1137
1138         try:
1139             seed = unicode(seed_e.text())
1140             seed.decode('hex')
1141         except:
1142             print "not hex, trying decode"
1143             try:
1144                 seed = mnemonic.mn_decode( seed.split(' ') )
1145             except:
1146                 QMessageBox.warning(None, _('Error'), _('I cannot decode this'), _('OK'))
1147                 sys.exit(0)
1148         if not seed:
1149             QMessageBox.warning(None, _('Error'), _('No seed'), 'OK')
1150             sys.exit(0)
1151
1152         wallet.seed = str(seed)
1153         #print repr(wallet.seed)
1154         wallet.gap_limit = gap
1155         return True
1156
1157
1158     def set_expert_mode(self, b):
1159         self.wallet.expert_mode = b
1160         self.wallet.save()
1161         self.update_receive_tab()
1162         self.update_contacts_tab()
1163
1164
1165
1166     def settings_dialog(self):
1167         d = QDialog(self)
1168         d.setModal(1)
1169
1170         vbox = QVBoxLayout()
1171
1172         msg = _('Here are the settings of your wallet.')
1173         vbox.addWidget(QLabel(msg))
1174
1175         grid = QGridLayout()
1176         grid.setSpacing(8)
1177         vbox.addLayout(grid)
1178
1179         fee_e = QLineEdit()
1180         fee_e.setText("%s"% str( Decimal( self.wallet.fee)/100000000 ) )
1181         grid.addWidget(QLabel(_('Fee per tx. input')), 2, 0)
1182         grid.addWidget(fee_e, 2, 1)
1183         fee_e.textChanged.connect(lambda: numbify(fee_e,False))
1184
1185         nz_e = QLineEdit()
1186         nz_e.setText("%d"% self.wallet.num_zeros)
1187         grid.addWidget(QLabel(_('Zeros displayed after decimal point')), 3, 0)
1188         grid.addWidget(nz_e, 3, 1)
1189         nz_e.textChanged.connect(lambda: numbify(nz_e,True))
1190
1191         cb = QCheckBox('Expert mode')
1192         grid.addWidget(cb,4,0)
1193         cb.setChecked(self.wallet.expert_mode)
1194
1195         vbox.addLayout(ok_cancel_buttons(d))
1196         d.setLayout(vbox)
1197
1198         if not d.exec_(): return
1199
1200         self.set_expert_mode(cb.isChecked())
1201
1202         fee = unicode(fee_e.text())
1203         try:
1204             fee = int( 100000000 * Decimal(fee) )
1205         except:
1206             QMessageBox.warning(self, _('Error'), _('Invalid value') +': %s'%fee, _('OK'))
1207             return
1208
1209         if self.wallet.fee != fee:
1210             self.wallet.fee = fee
1211             self.wallet.save()
1212
1213         nz = unicode(nz_e.text())
1214         try:
1215             nz = int( nz )
1216             if nz>8: nz=8
1217         except:
1218             QMessageBox.warning(self, _('Error'), _('Invalid value')+':%s'%nz, _('OK'))
1219             return
1220
1221         if self.wallet.num_zeros != nz:
1222             self.wallet.num_zeros = nz
1223             self.update_history_tab()
1224             self.update_receive_tab()
1225             self.wallet.save()
1226
1227     @staticmethod
1228     def network_dialog(wallet, parent=None):
1229         interface = wallet.interface
1230         if parent:
1231             if interface.is_connected:
1232                 status = _("Connected to")+" %s:%d\n%d blocks"%(interface.host, interface.port, wallet.blocks)
1233             else:
1234                 status = _("Not connected")
1235             server = wallet.server
1236         else:
1237             import random
1238             status = _("Please choose a server.")
1239             server = random.choice( DEFAULT_SERVERS )
1240
1241         if not wallet.interface.servers:
1242             servers_list = []
1243             for x in DEFAULT_SERVERS:
1244                 h,port,protocol = x.split(':')
1245                 servers_list.append( (h,[(protocol,port)] ) )
1246         else:
1247             servers_list = wallet.interface.servers
1248
1249         plist = {}
1250         for item in servers_list:
1251             host, pp = item
1252             z = {}
1253             for item2 in pp:
1254                 protocol, port = item2
1255                 z[protocol] = port
1256             plist[host] = z
1257
1258         d = QDialog(parent)
1259         d.setModal(1)
1260         d.setWindowTitle(_('Server'))
1261         d.setMinimumSize(375, 20)
1262
1263         vbox = QVBoxLayout()
1264         vbox.setSpacing(20)
1265
1266         hbox = QHBoxLayout()
1267         l = QLabel()
1268         l.setPixmap(QPixmap(":icons/network.png"))
1269         hbox.addWidget(l)
1270         hbox.addWidget(QLabel(status))
1271
1272         vbox.addLayout(hbox)
1273
1274         hbox = QHBoxLayout()
1275         host_line = QLineEdit()
1276         host_line.setText(server)
1277         hbox.addWidget(QLabel(_('Connect to') + ':'))
1278         hbox.addWidget(host_line)
1279         vbox.addLayout(hbox)
1280
1281         hbox = QHBoxLayout()
1282
1283         buttonGroup = QGroupBox(_("Protocol"))
1284         radio1 = QRadioButton("tcp", buttonGroup)
1285         radio2 = QRadioButton("http", buttonGroup)
1286
1287         def current_line():
1288             return unicode(host_line.text()).split(':')
1289
1290         def set_button(protocol):
1291             if protocol == 't':
1292                 radio1.setChecked(1)
1293             elif protocol == 'h':
1294                 radio2.setChecked(1)
1295
1296         def set_protocol(protocol):
1297             host = current_line()[0]
1298             pp = plist[host]
1299             if protocol not in pp.keys():
1300                 protocol = pp.keys()[0]
1301                 set_button(protocol)
1302             port = pp[protocol]
1303             host_line.setText( host + ':' + port + ':' + protocol)
1304
1305         radio1.clicked.connect(lambda x: set_protocol('t') )
1306         radio2.clicked.connect(lambda x: set_protocol('h') )
1307
1308         set_button(current_line()[2])
1309
1310         hbox.addWidget(QLabel(_('Protocol')+':'))
1311         hbox.addWidget(radio1)
1312         hbox.addWidget(radio2)
1313
1314         vbox.addLayout(hbox)
1315
1316         if wallet.interface.servers:
1317             label = _('Active Servers')
1318         else:
1319             label = _('Default Servers')
1320
1321         servers_list_widget = QTreeWidget(parent)
1322         servers_list_widget.setHeaderLabels( [ label ] )
1323         servers_list_widget.setMaximumHeight(150)
1324         for host in plist.keys():
1325             servers_list_widget.addTopLevelItem(QTreeWidgetItem( [ host ] ))
1326
1327         def do_set_line(x):
1328             host = unicode(x.text(0))
1329             pp = plist[host]
1330             if 't' in pp.keys():
1331                 protocol = 't'
1332             else:
1333                 protocol = pp.keys()[0]
1334             port = pp[protocol]
1335             host_line.setText( host + ':' + port + ':' + protocol)
1336             set_button(protocol)
1337
1338         servers_list_widget.connect(servers_list_widget, SIGNAL('itemClicked(QTreeWidgetItem*, int)'), do_set_line)
1339         vbox.addWidget(servers_list_widget)
1340
1341         vbox.addLayout(ok_cancel_buttons(d))
1342         d.setLayout(vbox)
1343
1344         if not d.exec_(): return
1345         server = unicode( host_line.text() )
1346
1347         try:
1348             wallet.set_server(server)
1349         except:
1350             QMessageBox.information(None, _('Error'), 'error', _('OK'))
1351             if parent == None:
1352                 sys.exit(1)
1353             else:
1354                 return
1355
1356         return True
1357
1358
1359
1360 class ElectrumGui():
1361
1362     def __init__(self, wallet):
1363         self.wallet = wallet
1364         self.app = QApplication(sys.argv)
1365
1366     def waiting_dialog(self):
1367
1368         s = Timer()
1369         s.start()
1370         w = QDialog()
1371         w.resize(200, 70)
1372         w.setWindowTitle('Electrum')
1373         l = QLabel('')
1374         vbox = QVBoxLayout()
1375         vbox.addWidget(l)
1376         w.setLayout(vbox)
1377         w.show()
1378         def f():
1379             if self.wallet.up_to_date:
1380                 w.close()
1381             else:
1382                 l.setText("Please wait...\nAddresses generated: %d\nKilobytes received: %.1f"\
1383                               %(len(self.wallet.all_addresses()), self.wallet.interface.bytes_received/1024.))
1384
1385         w.connect(s, QtCore.SIGNAL('timersignal'), f)
1386         self.wallet.interface.poke()
1387         w.exec_()
1388         w.destroy()
1389
1390
1391     def restore_or_create(self):
1392
1393         msg = _("Wallet file not found.")+"\n"+_("Do you want to create a new wallet, or to restore an existing one?")
1394         r = QMessageBox.question(None, _('Message'), msg, _('Create'), _('Restore'), _('Cancel'), 0, 2)
1395         if r==2: return False
1396
1397         is_recovery = (r==1)
1398         wallet = self.wallet
1399         # ask for the server.
1400         if not ElectrumWindow.network_dialog( wallet, parent=None ): return False
1401
1402         if not is_recovery:
1403             wallet.new_seed(None)
1404             wallet.init_mpk( wallet.seed )
1405             wallet.up_to_date_event.clear()
1406             wallet.up_to_date = False
1407             self.waiting_dialog()
1408             # run a dialog indicating the seed, ask the user to remember it
1409             ElectrumWindow.show_seed_dialog(wallet)
1410             #ask for password
1411             ElectrumWindow.change_password_dialog(wallet)
1412         else:
1413             # ask for seed and gap.
1414             if not ElectrumWindow.seed_dialog( wallet ): return False
1415             wallet.init_mpk( wallet.seed )
1416             wallet.up_to_date_event.clear()
1417             wallet.up_to_date = False
1418             self.waiting_dialog()
1419             if wallet.is_found():
1420                 # history and addressbook
1421                 wallet.update_tx_history()
1422                 wallet.fill_addressbook()
1423                 print "recovery successful"
1424                 wallet.save()
1425             else:
1426                 QMessageBox.information(None, _('Error'), _("No transactions found for this seed"), _('OK'))
1427
1428         wallet.save()
1429         return True
1430
1431     def main(self,url):
1432         s = Timer()
1433         s.start()
1434         w = ElectrumWindow(self.wallet)
1435         if url: w.set_url(url)
1436         w.app = self.app
1437         w.connect_slots(s)
1438         w.update_wallet()
1439
1440         self.app.exec_()