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, x, is_alias):
 673         if not x: return
 674         if is_alias:
 675             label = x
 676             s, addr = self.wallet.aliases.get(x)
 677         else:
 678             addr = x
 679             label = self.wallet.labels.get(addr)
 680         m_addr = label + '  <' + addr + '>' if label else addr
 681         self.tabs.setCurrentIndex(1)
 682         self.payto_e.setText(m_addr)
 683         self.amount_e.setFocus()
 684
 685     def delete_contact(self, x, is_alias):
 686         if self.question("Do you want to remove %s from your list of contacts?"%x):
 687             if not is_alias and x in self.wallet.addressbook:
 688                 self.wallet.addressbook.remove(x)
 689                 if x in self.wallet.labels.keys():
 690                     self.wallet.labels.pop(x)
 691             elif is_alias and x in self.wallet.aliases:
 692                 self.wallet.aliases.pop(x)
 693             self.update_history_tab()
 694             self.update_contacts_tab()
 695             self.update_completions()
 696
 697     def create_contact_menu(self, position):
 698         # fixme: this function apparently has a side effect.
 699         # if it is not called the menu pops up several times
 700         #self.contacts_list.selectedIndexes()
 701
 702         item = self.contacts_list.itemAt(position)
 703         if not item: return
 704         addr = unicode(item.text(0))
 705         label = unicode(item.text(1))
 706         is_alias = label in self.wallet.aliases.keys()
 707         x = label if is_alias else addr
 708         menu = QMenu()
 709         menu.addAction(_("Pay to"), lambda: self.payto(x, is_alias))
 710         menu.addAction(_("Copy to Clipboard"), lambda: self.app.clipboard().setText(addr))
 711         menu.addAction(_("View QR code"),lambda: self.show_address_qrcode(addr))
 712         if not is_alias:
 713             menu.addAction(_("Edit label"), lambda: self.edit_label(False))
 714         else:
 715             menu.addAction(_("View alias details"), lambda: self.show_contact_details(label))
 716         menu.addAction(_("Delete"), lambda: self.delete_contact(x,is_alias))
 717         menu.exec_(self.contacts_list.viewport().mapToGlobal(position))
 718
 719
 720     def update_receive_tab(self):
 721         l = self.receive_list
 722         l.clear()
 723         l.setColumnHidden(0,not self.wallet.expert_mode)
 724         l.setColumnHidden(3,not self.wallet.expert_mode)
 725         l.setColumnHidden(4,not self.wallet.expert_mode)
 726         l.setColumnWidth(0, 50)
 727         l.setColumnWidth(1, 310)
 728         l.setColumnWidth(2, 300)
 729         l.setColumnWidth(3, 90)
 730         l.setColumnWidth(4, 10)
 731
 732         self.new_address_button.setHidden(not self.wallet.expert_mode)
 733         gap = 0
 734         is_red = False
 735         for address in self.wallet.all_addresses():
 736
 737             if self.wallet.is_change(address) and not self.wallet.expert_mode:
 738                 continue
 739
 740             label = self.wallet.labels.get(address,'')
 741             n = 0
 742             h = self.wallet.history.get(address,[])
 743             for item in h:
 744                 if not item['is_input'] : n=n+1
 745
 746             if n==0:
 747                 tx = "None"
 748                 if address in self.wallet.addresses:
 749                     gap += 1
 750                     if gap > self.wallet.gap_limit:
 751                         is_red = True
 752             else:
 753                 tx = "%d"%n
 754                 if address in self.wallet.addresses:
 755                     gap = 0
 756
 757             c, u = self.wallet.get_addr_balance(address)
 758             balance = format_satoshis( c + u, False, self.wallet.num_zeros )
 759             flags = self.wallet.get_address_flags(address)
 760             item = QTreeWidgetItem( [ flags, address, label, balance, tx] )
 761
 762             item.setFont(0, QFont(MONOSPACE_FONT))
 763             item.setFont(1, QFont(MONOSPACE_FONT))
 764             if address in self.wallet.frozen_addresses:
 765                 item.setBackgroundColor(1, QColor('lightblue'))
 766             elif address in self.wallet.prioritized_addresses:
 767                 item.setBackgroundColor(1, QColor('lightgreen'))
 768             if is_red and address in self.wallet.addresses:
 769                 item.setBackgroundColor(1, QColor('red'))
 770             l.addTopLevelItem(item)
 771
 772         # we use column 1 because column 0 may be hidden
 773         l.setCurrentItem(l.topLevelItem(0),1)
 774
 775     def show_contact_details(self, m):
 776         a = self.wallet.aliases.get(m)
 777         if a:
 778             if a[0] in self.wallet.authorities.keys():
 779                 s = self.wallet.authorities.get(a[0])
 780             else:
 781                 s = "self-signed"
 782             msg = 'Alias: '+ m + '\nTarget address: '+ a[1] + '\n\nSigned by: ' + s + '\nSigning address:' + a[0]
 783             QMessageBox.information(self, 'Alias', msg, 'OK')
 784
 785     def update_contacts_tab(self):
 786
 787         l = self.contacts_list
 788         l.clear()
 789         l.setColumnHidden(2, not self.wallet.expert_mode)
 790         l.setColumnWidth(0, 350)
 791         l.setColumnWidth(1, 330)
 792         l.setColumnWidth(2, 100)
 793
 794         alias_targets = []
 795         for alias, v in self.wallet.aliases.items():
 796             s, target = v
 797             alias_targets.append(target)
 798             item = QTreeWidgetItem( [ target, alias, '-'] )
 799             item.setBackgroundColor(1, QColor('lightgray'))
 800             l.addTopLevelItem(item)
 801
 802         for address in self.wallet.addressbook:
 803             if address in alias_targets: continue
 804             label = self.wallet.labels.get(address,'')
 805             n = 0
 806             for item in self.wallet.tx_history.values():
 807                 if address in item['outputs'] : n=n+1
 808             tx = "None" if n==0 else "%d"%n
 809             item = QTreeWidgetItem( [ address, label, tx] )
 810             item.setFont(0, QFont(MONOSPACE_FONT))
 811             l.addTopLevelItem(item)
 812
 813         l.setCurrentItem(l.topLevelItem(0))
 814
 815     def create_wall_tab(self):
 816         self.textbox = textbox = QTextEdit(self)
 817         textbox.setFont(QFont(MONOSPACE_FONT))
 818         textbox.setReadOnly(True)
 819         return textbox
 820
 821     def create_status_bar(self):
 822         sb = QStatusBar()
 823         sb.setFixedHeight(35)
 824         if self.wallet.seed:
 825             sb.addPermanentWidget( StatusBarButton( QIcon(":icons/lock.png"), "Password", lambda: self.change_password_dialog(self.wallet, self) ) )
 826         sb.addPermanentWidget( StatusBarButton( QIcon(":icons/preferences.png"), "Preferences", self.settings_dialog ) )
 827         if self.wallet.seed:
 828             sb.addPermanentWidget( StatusBarButton( QIcon(":icons/seed.png"), "Seed", lambda: self.show_seed_dialog(self.wallet, self) ) )
 829         self.status_button = StatusBarButton( QIcon(":icons/status_disconnected.png"), "Network", lambda: self.network_dialog(self.wallet, self) )
 830         sb.addPermanentWidget( self.status_button )
 831         self.setStatusBar(sb)
 832
 833     def new_contact_dialog(self):
 834         text, ok = QInputDialog.getText(self, _('New Contact'), _('Address') + ':')
 835         address = unicode(text)
 836         if ok:
 837             if self.wallet.is_valid(address):
 838                 self.wallet.addressbook.append(address)
 839                 self.wallet.save()
 840                 self.update_contacts_tab()
 841                 self.update_history_tab()
 842                 self.update_completions()
 843             else:
 844                 QMessageBox.warning(self, _('Error'), _('Invalid Address'), _('OK'))
 845
 846     @staticmethod
 847     def show_seed_dialog(wallet, parent=None):
 848
 849         if not wallet.seed:
 850             QMessageBox.information(parent, _('Message'), _('No seed'), _('OK'))
 851             return
 852
 853         if wallet.use_encryption:
 854             password = parent.password_dialog()
 855             if not password: return
 856         else:
 857             password = None
 858
 859         try:
 860             seed = wallet.pw_decode( wallet.seed, password)
 861         except:
 862             QMessageBox.warning(parent, _('Error'), _('Incorrect Password'), _('OK'))
 863             return
 864
 865         msg = _("Your wallet generation seed is") + ":\n\n" + seed + "\n\n"\
 866               + _("Please keep it in a safe place; if you lose it, you will not be able to restore your wallet.") + "\n\n" \
 867               + _("Equivalently, your wallet seed can be stored and recovered with the following mnemonic code") + ":\n\n\"" \
 868               + ' '.join(mnemonic.mn_encode(seed)) + "\"\n\n\n"
 869
 870         d = QDialog(None)
 871         d.setModal(1)
 872         d.setWindowTitle(_("Seed"))
 873         d.setMinimumSize(400, 270)
 874
 875         vbox = QVBoxLayout()
 876         hbox = QHBoxLayout()
 877         vbox2 = QVBoxLayout()
 878         l = QLabel()
 879         l.setPixmap(QPixmap(":icons/seed.png").scaledToWidth(56))
 880         vbox2.addWidget(l)
 881         vbox2.addStretch(1)
 882         hbox.addLayout(vbox2)
 883         hbox.addWidget(QLabel(msg))
 884         vbox.addLayout(hbox)
 885
 886         hbox = QHBoxLayout()
 887         hbox.addStretch(1)
 888
 889
 890         if parent:
 891             app = parent.app
 892         else:
 893             app = QApplication
 894
 895         b = QPushButton(_("Copy to Clipboard"))
 896         b.clicked.connect(lambda: app.clipboard().setText(seed + ' "' + ' '.join(mnemonic.mn_encode(seed))+'"'))
 897         hbox.addWidget(b)
 898         b = QPushButton(_("View as QR Code"))
 899         b.clicked.connect(lambda: ElectrumWindow.show_seed_qrcode(seed))
 900         hbox.addWidget(b)
 901
 902         b = QPushButton(_("OK"))
 903         b.clicked.connect(d.accept)
 904         hbox.addWidget(b)
 905         vbox.addLayout(hbox)
 906         d.setLayout(vbox)
 907         d.exec_()
 908
 909     @staticmethod
 910     def show_seed_qrcode(seed):
 911         if not seed: return
 912         d = QDialog(None)
 913         d.setModal(1)
 914         d.setWindowTitle(_("Seed"))
 915         d.setMinimumSize(270, 300)
 916         vbox = QVBoxLayout()
 917         vbox.addWidget(QRCodeWidget(seed))
 918         hbox = QHBoxLayout()
 919         hbox.addStretch(1)
 920         b = QPushButton(_("OK"))
 921         hbox.addWidget(b)
 922         b.clicked.connect(d.accept)
 923
 924         vbox.addLayout(hbox)
 925         d.setLayout(vbox)
 926         d.exec_()
 927
 928
 929     def show_address_qrcode(self,address):
 930         if not address: return
 931         d = QDialog(self)
 932         d.setModal(1)
 933         d.setWindowTitle(address)
 934         d.setMinimumSize(270, 350)
 935         vbox = QVBoxLayout()
 936         qrw = QRCodeWidget(address)
 937         vbox.addWidget(qrw)
 938
 939         hbox = QHBoxLayout()
 940         amount_e = QLineEdit()
 941         hbox.addWidget(QLabel(_('Amount')))
 942         hbox.addWidget(amount_e)
 943         vbox.addLayout(hbox)
 944
 945         #hbox = QHBoxLayout()
 946         #label_e = QLineEdit()
 947         #hbox.addWidget(QLabel('Label'))
 948         #hbox.addWidget(label_e)
 949         #vbox.addLayout(hbox)
 950
 951         def amount_changed():
 952             amount = numbify(amount_e)
 953             #label = str( label_e.getText() )
 954             if amount is not None:
 955                 qrw.set_addr('bitcoin:%s?amount=%s'%(address,str( Decimal(amount) /100000000)))
 956             else:
 957                 qrw.set_addr( address )
 958             qrw.repaint()
 959
 960         def do_save():
 961             bmp.save_qrcode(qrw.qr, "qrcode.bmp")
 962             self.show_message(_("QR code saved to file") + " 'qrcode.bmp'")
 963
 964         amount_e.textChanged.connect( amount_changed )
 965
 966         hbox = QHBoxLayout()
 967         hbox.addStretch(1)
 968         b = QPushButton(_("Save"))
 969         b.clicked.connect(do_save)
 970         hbox.addWidget(b)
 971         b = QPushButton(_("Close"))
 972         hbox.addWidget(b)
 973         b.clicked.connect(d.accept)
 974
 975         vbox.addLayout(hbox)
 976         d.setLayout(vbox)
 977         d.exec_()
 978
 979     def question(self, msg):
 980         return QMessageBox.question(self, _('Message'), msg, QMessageBox.Yes | QMessageBox.No, QMessageBox.No) == QMessageBox.Yes
 981
 982     def show_message(self, msg):
 983         QMessageBox.information(self, _('Message'), msg, _('OK'))
 984
 985     def password_dialog(self ):
 986         d = QDialog(self)
 987         d.setModal(1)
 988
 989         pw = QLineEdit()
 990         pw.setEchoMode(2)
 991
 992         vbox = QVBoxLayout()
 993         msg = _('Please enter your password')
 994         vbox.addWidget(QLabel(msg))
 995
 996         grid = QGridLayout()
 997         grid.setSpacing(8)
 998         grid.addWidget(QLabel(_('Password')), 1, 0)
 999         grid.addWidget(pw, 1, 1)
1000         vbox.addLayout(grid)
1001
1002         vbox.addLayout(ok_cancel_buttons(d))
1003         d.setLayout(vbox)
1004
1005         if not d.exec_(): return
1006         return unicode(pw.text())
1007
1008
1009     def change_gap_limit_dialog(self):
1010         d = QDialog(self)
1011         d.setModal(1)
1012
1013         vbox = QVBoxLayout()
1014
1015         msg = _('In order to create more addresses, you need to raise your gap limit.') + '\n' \
1016               + _('Your current gap limit is ') + '%d'%self.wallet.gap_limit + '\n' \
1017               + _('The minimum for this wallet is: ') + '%d'%self.wallet.min_acceptable_gap() + '\n'
1018
1019         vbox.addWidget(QLabel(msg))
1020
1021         grid = QGridLayout()
1022         grid.setSpacing(8)
1023         grid.addWidget(QLabel(_('New gap limit: ')), 1, 0)
1024
1025         e = QLineEdit()
1026         grid.addWidget(e, 1, 1)
1027         vbox.addLayout(grid)
1028
1029         vbox.addLayout(ok_cancel_buttons(d))
1030         d.setLayout(vbox)
1031
1032         if not d.exec_(): return
1033         try:
1034             n = int(e.text())
1035         except:
1036             QMessageBox.warning(self, _('Error'), _('Invalid Value'), _('OK'))
1037             return
1038
1039         r = self.wallet.change_gap_limit(n)
1040         if r:
1041             self.update_receive_tab()
1042         else:
1043             QMessageBox.warning(self, _('Error'), _('Invalid Value'), _('OK'))
1044
1045
1046
1047
1048
1049     @staticmethod
1050     def change_password_dialog( wallet, parent=None ):
1051
1052         if not wallet.seed:
1053             QMessageBox.information(parent, _('Error'), _('No seed'), _('OK'))
1054             return
1055
1056         d = QDialog(parent)
1057         d.setModal(1)
1058
1059         pw = QLineEdit()
1060         pw.setEchoMode(2)
1061         new_pw = QLineEdit()
1062         new_pw.setEchoMode(2)
1063         conf_pw = QLineEdit()
1064         conf_pw.setEchoMode(2)
1065
1066         vbox = QVBoxLayout()
1067         if parent:
1068             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')
1069         else:
1070             msg = _("Please choose a password to encrypt your wallet keys.")+'\n'+_("Leave these fields empty if you want to disable encryption.")
1071         vbox.addWidget(QLabel(msg))
1072
1073         grid = QGridLayout()
1074         grid.setSpacing(8)
1075
1076         if wallet.use_encryption:
1077             grid.addWidget(QLabel(_('Password')), 1, 0)
1078             grid.addWidget(pw, 1, 1)
1079
1080         grid.addWidget(QLabel(_('New Password')), 2, 0)
1081         grid.addWidget(new_pw, 2, 1)
1082
1083         grid.addWidget(QLabel(_('Confirm Password')), 3, 0)
1084         grid.addWidget(conf_pw, 3, 1)
1085         vbox.addLayout(grid)
1086
1087         vbox.addLayout(ok_cancel_buttons(d))
1088         d.setLayout(vbox)
1089
1090         if not d.exec_(): return
1091
1092         password = unicode(pw.text()) if wallet.use_encryption else None
1093         new_password = unicode(new_pw.text())
1094         new_password2 = unicode(conf_pw.text())
1095
1096         try:
1097             seed = wallet.pw_decode( wallet.seed, password)
1098         except:
1099             QMessageBox.warning(parent, _('Error'), _('Incorrect Password'), _('OK'))
1100             return
1101
1102         if new_password != new_password2:
1103             QMessageBox.warning(parent, _('Error'), _('Passwords do not match'), _('OK'))
1104             return
1105
1106         wallet.update_password(seed, password, new_password)
1107
1108     @staticmethod
1109     def seed_dialog(wallet, parent=None):
1110         d = QDialog(parent)
1111         d.setModal(1)
1112
1113         vbox = QVBoxLayout()
1114         msg = _("Please enter your wallet seed or the corresponding mnemonic list of words, and the gap limit of your wallet.")
1115         vbox.addWidget(QLabel(msg))
1116
1117         grid = QGridLayout()
1118         grid.setSpacing(8)
1119
1120         seed_e = QLineEdit()
1121         grid.addWidget(QLabel(_('Seed or mnemonic')), 1, 0)
1122         grid.addWidget(seed_e, 1, 1)
1123
1124         gap_e = QLineEdit()
1125         gap_e.setText("5")
1126         grid.addWidget(QLabel(_('Gap limit')), 2, 0)
1127         grid.addWidget(gap_e, 2, 1)
1128         gap_e.textChanged.connect(lambda: numbify(gap_e,True))
1129         vbox.addLayout(grid)
1130
1131         vbox.addLayout(ok_cancel_buttons(d))
1132         d.setLayout(vbox)
1133
1134         if not d.exec_(): return
1135
1136         try:
1137             gap = int(unicode(gap_e.text()))
1138         except:
1139             QMessageBox.warning(None, _('Error'), 'error', 'OK')
1140             sys.exit(0)
1141
1142         try:
1143             seed = unicode(seed_e.text())
1144             seed.decode('hex')
1145         except:
1146             print "not hex, trying decode"
1147             try:
1148                 seed = mnemonic.mn_decode( seed.split(' ') )
1149             except:
1150                 QMessageBox.warning(None, _('Error'), _('I cannot decode this'), _('OK'))
1151                 sys.exit(0)
1152         if not seed:
1153             QMessageBox.warning(None, _('Error'), _('No seed'), 'OK')
1154             sys.exit(0)
1155
1156         wallet.seed = str(seed)
1157         #print repr(wallet.seed)
1158         wallet.gap_limit = gap
1159         return True
1160
1161
1162     def set_expert_mode(self, b):
1163         self.wallet.expert_mode = b
1164         self.wallet.save()
1165         self.update_receive_tab()
1166         self.update_contacts_tab()
1167
1168
1169
1170     def settings_dialog(self):
1171         d = QDialog(self)
1172         d.setModal(1)
1173
1174         vbox = QVBoxLayout()
1175
1176         msg = _('Here are the settings of your wallet.')
1177         vbox.addWidget(QLabel(msg))
1178
1179         grid = QGridLayout()
1180         grid.setSpacing(8)
1181         vbox.addLayout(grid)
1182
1183         fee_e = QLineEdit()
1184         fee_e.setText("%s"% str( Decimal( self.wallet.fee)/100000000 ) )
1185         grid.addWidget(QLabel(_('Fee per tx. input')), 2, 0)
1186         grid.addWidget(fee_e, 2, 1)
1187         fee_e.textChanged.connect(lambda: numbify(fee_e,False))
1188
1189         nz_e = QLineEdit()
1190         nz_e.setText("%d"% self.wallet.num_zeros)
1191         grid.addWidget(QLabel(_('Zeros displayed after decimal point')), 3, 0)
1192         grid.addWidget(nz_e, 3, 1)
1193         nz_e.textChanged.connect(lambda: numbify(nz_e,True))
1194
1195         cb = QCheckBox('Expert mode')
1196         grid.addWidget(cb,4,0)
1197         cb.setChecked(self.wallet.expert_mode)
1198
1199         vbox.addLayout(ok_cancel_buttons(d))
1200         d.setLayout(vbox)
1201
1202         if not d.exec_(): return
1203
1204         self.set_expert_mode(cb.isChecked())
1205
1206         fee = unicode(fee_e.text())
1207         try:
1208             fee = int( 100000000 * Decimal(fee) )
1209         except:
1210             QMessageBox.warning(self, _('Error'), _('Invalid value') +': %s'%fee, _('OK'))
1211             return
1212
1213         if self.wallet.fee != fee:
1214             self.wallet.fee = fee
1215             self.wallet.save()
1216
1217         nz = unicode(nz_e.text())
1218         try:
1219             nz = int( nz )
1220             if nz>8: nz=8
1221         except:
1222             QMessageBox.warning(self, _('Error'), _('Invalid value')+':%s'%nz, _('OK'))
1223             return
1224
1225         if self.wallet.num_zeros != nz:
1226             self.wallet.num_zeros = nz
1227             self.update_history_tab()
1228             self.update_receive_tab()
1229             self.wallet.save()
1230
1231     @staticmethod
1232     def network_dialog(wallet, parent=None):
1233         interface = wallet.interface
1234         if parent:
1235             if interface.is_connected:
1236                 status = _("Connected to")+" %s:%d\n%d blocks"%(interface.host, interface.port, wallet.blocks)
1237             else:
1238                 status = _("Not connected")
1239             server = wallet.server
1240         else:
1241             import random
1242             status = _("Please choose a server.")
1243             server = random.choice( DEFAULT_SERVERS )
1244
1245         if not wallet.interface.servers:
1246             servers_list = []
1247             for x in DEFAULT_SERVERS:
1248                 h,port,protocol = x.split(':')
1249                 servers_list.append( (h,[(protocol,port)] ) )
1250         else:
1251             servers_list = wallet.interface.servers
1252
1253         plist = {}
1254         for item in servers_list:
1255             host, pp = item
1256             z = {}
1257             for item2 in pp:
1258                 protocol, port = item2
1259                 z[protocol] = port
1260             plist[host] = z
1261
1262         d = QDialog(parent)
1263         d.setModal(1)
1264         d.setWindowTitle(_('Server'))
1265         d.setMinimumSize(375, 20)
1266
1267         vbox = QVBoxLayout()
1268         vbox.setSpacing(20)
1269
1270         hbox = QHBoxLayout()
1271         l = QLabel()
1272         l.setPixmap(QPixmap(":icons/network.png"))
1273         hbox.addWidget(l)
1274         hbox.addWidget(QLabel(status))
1275
1276         vbox.addLayout(hbox)
1277
1278         hbox = QHBoxLayout()
1279         host_line = QLineEdit()
1280         host_line.setText(server)
1281         hbox.addWidget(QLabel(_('Connect to') + ':'))
1282         hbox.addWidget(host_line)
1283         vbox.addLayout(hbox)
1284
1285         hbox = QHBoxLayout()
1286
1287         buttonGroup = QGroupBox(_("Protocol"))
1288         radio1 = QRadioButton("tcp", buttonGroup)
1289         radio2 = QRadioButton("http", buttonGroup)
1290
1291         def current_line():
1292             return unicode(host_line.text()).split(':')
1293
1294         def set_button(protocol):
1295             if protocol == 't':
1296                 radio1.setChecked(1)
1297             elif protocol == 'h':
1298                 radio2.setChecked(1)
1299
1300         def set_protocol(protocol):
1301             host = current_line()[0]
1302             pp = plist[host]
1303             if protocol not in pp.keys():
1304                 protocol = pp.keys()[0]
1305                 set_button(protocol)
1306             port = pp[protocol]
1307             host_line.setText( host + ':' + port + ':' + protocol)
1308
1309         radio1.clicked.connect(lambda x: set_protocol('t') )
1310         radio2.clicked.connect(lambda x: set_protocol('h') )
1311
1312         set_button(current_line()[2])
1313
1314         hbox.addWidget(QLabel(_('Protocol')+':'))
1315         hbox.addWidget(radio1)
1316         hbox.addWidget(radio2)
1317
1318         vbox.addLayout(hbox)
1319
1320         if wallet.interface.servers:
1321             label = _('Active Servers')
1322         else:
1323             label = _('Default Servers')
1324
1325         servers_list_widget = QTreeWidget(parent)
1326         servers_list_widget.setHeaderLabels( [ label ] )
1327         servers_list_widget.setMaximumHeight(150)
1328         for host in plist.keys():
1329             servers_list_widget.addTopLevelItem(QTreeWidgetItem( [ host ] ))
1330
1331         def do_set_line(x):
1332             host = unicode(x.text(0))
1333             pp = plist[host]
1334             if 't' in pp.keys():
1335                 protocol = 't'
1336             else:
1337                 protocol = pp.keys()[0]
1338             port = pp[protocol]
1339             host_line.setText( host + ':' + port + ':' + protocol)
1340             set_button(protocol)
1341
1342         servers_list_widget.connect(servers_list_widget, SIGNAL('itemClicked(QTreeWidgetItem*, int)'), do_set_line)
1343         vbox.addWidget(servers_list_widget)
1344
1345         vbox.addLayout(ok_cancel_buttons(d))
1346         d.setLayout(vbox)
1347
1348         if not d.exec_(): return
1349         server = unicode( host_line.text() )
1350
1351         try:
1352             wallet.set_server(server)
1353         except:
1354             QMessageBox.information(None, _('Error'), 'error', _('OK'))
1355             if parent == None:
1356                 sys.exit(1)
1357             else:
1358                 return
1359
1360         return True
1361
1362
1363
1364 class ElectrumGui():
1365
1366     def __init__(self, wallet):
1367         self.wallet = wallet
1368         self.app = QApplication(sys.argv)
1369
1370     def waiting_dialog(self):
1371
1372         s = Timer()
1373         s.start()
1374         w = QDialog()
1375         w.resize(200, 70)
1376         w.setWindowTitle('Electrum')
1377         l = QLabel('')
1378         vbox = QVBoxLayout()
1379         vbox.addWidget(l)
1380         w.setLayout(vbox)
1381         w.show()
1382         def f():
1383             if self.wallet.up_to_date:
1384                 w.close()
1385             else:
1386                 l.setText("Please wait...\nAddresses generated: %d\nKilobytes received: %.1f"\
1387                               %(len(self.wallet.all_addresses()), self.wallet.interface.bytes_received/1024.))
1388
1389         w.connect(s, QtCore.SIGNAL('timersignal'), f)
1390         self.wallet.interface.poke()
1391         w.exec_()
1392         w.destroy()
1393
1394
1395     def restore_or_create(self):
1396
1397         msg = _("Wallet file not found.")+"\n"+_("Do you want to create a new wallet, or to restore an existing one?")
1398         r = QMessageBox.question(None, _('Message'), msg, _('Create'), _('Restore'), _('Cancel'), 0, 2)
1399         if r==2: return False
1400
1401         is_recovery = (r==1)
1402         wallet = self.wallet
1403         # ask for the server.
1404         if not ElectrumWindow.network_dialog( wallet, parent=None ): return False
1405
1406         if not is_recovery:
1407             wallet.new_seed(None)
1408             wallet.init_mpk( wallet.seed )
1409             wallet.up_to_date_event.clear()
1410             wallet.up_to_date = False
1411             self.waiting_dialog()
1412             # run a dialog indicating the seed, ask the user to remember it
1413             ElectrumWindow.show_seed_dialog(wallet)
1414             #ask for password
1415             ElectrumWindow.change_password_dialog(wallet)
1416         else:
1417             # ask for seed and gap.
1418             if not ElectrumWindow.seed_dialog( wallet ): return False
1419             wallet.init_mpk( wallet.seed )
1420             wallet.up_to_date_event.clear()
1421             wallet.up_to_date = False
1422             self.waiting_dialog()
1423             if wallet.is_found():
1424                 # history and addressbook
1425                 wallet.update_tx_history()
1426                 wallet.fill_addressbook()
1427                 print "recovery successful"
1428                 wallet.save()
1429             else:
1430                 QMessageBox.information(None, _('Error'), _("No transactions found for this seed"), _('OK'))
1431
1432         wallet.save()
1433         return True
1434
1435     def main(self,url):
1436         s = Timer()
1437         s.start()
1438         w = ElectrumWindow(self.wallet)
1439         if url: w.set_url(url)
1440         w.app = self.app
1441         w.connect_slots(s)
1442         w.update_wallet()
1443
1444         self.app.exec_()