lib/gui_lite.py

   1 from PyQt4.QtCore import *
   2 from PyQt4.QtGui import *
   3 from i18n import _
   4 import decimal
   5 import random
   6 import re
   7 import sys
   8
   9 try:
  10     import lib.gui_qt as gui_qt
  11 except ImportError:
  12     import electrum.gui_qt as gui_qt
  13
  14 def IconButton(filename, parent=None):
  15     pixmap = QPixmap(filename)
  16     icon = QIcon(pixmap)
  17     return QPushButton(icon, "", parent)
  18
  19 class ElectrumGui:
  20
  21     def __init__(self, wallet):
  22         self.wallet = wallet
  23         self.app = QApplication(sys.argv)
  24         with open("data/style.css") as style_file:
  25             self.app.setStyleSheet(style_file.read())
  26
  27     def main(self, url):
  28         self.actuator = MiniActuator(self.wallet)
  29         self.mini = MiniWindow(self.actuator, self.expand)
  30         self.driver = MiniDriver(self.wallet, self.mini)
  31         sys.exit(self.app.exec_())
  32
  33     def expand(self):
  34         self.wallet.gui_callback = None
  35         self.actuator = None
  36         self.mini.close()
  37         self.mini = None
  38         self.driver = None
  39         #self.gui = gui_qt.ElectrumGui(self.wallet)
  40
  41 class MiniWindow(QDialog):
  42
  43     def __init__(self, actuator, expand_callback):
  44         super(MiniWindow, self).__init__()
  45
  46         self.actuator = actuator
  47
  48         accounts_button = IconButton("data/icons/accounts.png")
  49         accounts_button.setObjectName("accounts_button")
  50
  51         self.accounts_selector = QMenu()
  52         accounts_button.setMenu(self.accounts_selector)
  53
  54         interact_button = IconButton("data/icons/interact.png")
  55         interact_button.setObjectName("interact_button")
  56
  57         app_menu = QMenu()
  58         report_action = app_menu.addAction(_("&Report Bug"))
  59         about_action = app_menu.addAction(_("&About Electrum"))
  60         app_menu.addSeparator()
  61         quit_action = app_menu.addAction(_("&Quit"))
  62         interact_button.setMenu(app_menu)
  63
  64         self.connect(report_action, SIGNAL("triggered()"),
  65                      self.show_report_bug)
  66         self.connect(about_action, SIGNAL("triggered()"), self.show_about)
  67         self.connect(quit_action, SIGNAL("triggered()"), self.close)
  68
  69         expand_button = IconButton("data/icons/expand.png")
  70         expand_button.setObjectName("expand_button")
  71         self.connect(expand_button, SIGNAL("clicked()"), expand_callback)
  72
  73         self.balance_label = BalanceLabel()
  74         self.balance_label.setObjectName("balance_label")
  75
  76         copy_button = QPushButton(_("&Copy Address"))
  77         copy_button.setObjectName("copy_button")
  78         copy_button.setDefault(True)
  79         self.connect(copy_button, SIGNAL("clicked()"),
  80                      self.actuator.copy_address)
  81
  82         # Use QCompleter
  83         self.address_input = TextedLineEdit(_("Enter a Bitcoin address..."))
  84         self.address_input.setObjectName("address_input")
  85         self.connect(self.address_input, SIGNAL("textChanged(QString)"),
  86                      self.address_field_changed)
  87         metrics = QFontMetrics(qApp.font())
  88         self.address_input.setMinimumWidth(
  89             metrics.width("1E4vM9q25xsyDwWwdqHUWnwshdWC9PykmL"))
  90
  91         self.valid_address = QCheckBox()
  92         self.valid_address.setObjectName("valid_address")
  93         self.valid_address.setEnabled(False)
  94         self.valid_address.setChecked(False)
  95
  96         address_layout = QHBoxLayout()
  97         address_layout.addWidget(self.address_input)
  98         address_layout.addWidget(self.valid_address)
  99
 100         self.amount_input = TextedLineEdit(_("... and amount"))
 101         self.amount_input.setObjectName("amount_input")
 102         # This is changed according to the user's displayed balance
 103         self.amount_validator = QDoubleValidator(self.amount_input)
 104         self.amount_validator.setNotation(QDoubleValidator.StandardNotation)
 105         self.amount_validator.setRange(0, 0)
 106         self.amount_validator.setDecimals(2)
 107         self.amount_input.setValidator(self.amount_validator)
 108
 109         amount_layout = QHBoxLayout()
 110         amount_layout.addWidget(self.amount_input)
 111         amount_layout.addStretch()
 112
 113         send_button = QPushButton(_("&Send"))
 114         send_button.setObjectName("send_button")
 115         self.connect(send_button, SIGNAL("clicked()"), self.send)
 116
 117         main_layout = QGridLayout(self)
 118         main_layout.addWidget(accounts_button, 0, 0)
 119         main_layout.addWidget(interact_button, 1, 0)
 120         main_layout.addWidget(expand_button, 2, 0)
 121
 122         main_layout.addWidget(self.balance_label, 0, 1)
 123         main_layout.addWidget(copy_button, 0, 2)
 124
 125         main_layout.addLayout(address_layout, 1, 1, 1, -1)
 126
 127         main_layout.addLayout(amount_layout, 2, 1)
 128         main_layout.addWidget(send_button, 2, 2)
 129
 130         self.setWindowTitle("Electrum")
 131         self.setWindowFlags(Qt.Window|Qt.MSWindowsFixedSizeDialogHint)
 132         self.layout().setSizeConstraint(QLayout.SetFixedSize)
 133         self.setObjectName("main_window")
 134         self.show()
 135
 136     def closeEvent(self, event):
 137         super(MiniWindow, self).closeEvent(event)
 138         qApp.quit()
 139
 140     def activate(self):
 141         pass
 142
 143     def deactivate(self):
 144         pass
 145
 146     def set_balances(self, btc_balance, quote_balance, quote_currency):
 147         self.balance_label.set_balances( \
 148             btc_balance, quote_balance, quote_currency)
 149         self.amount_validator.setRange(0, btc_balance)
 150         main_account_info = \
 151             "Checking - %s BTC (%s %s)" % (btc_balance,
 152                                            quote_balance, quote_currency)
 153         self.setWindowTitle("Electrum - %s" % main_account_info)
 154         self.accounts_selector.clear()
 155         self.accounts_selector.addAction("%s" % main_account_info)
 156
 157     def send(self):
 158         self.actuator.send(self.address_input.text(),
 159                            self.amount_input.text(), self)
 160
 161     def address_field_changed(self, address):
 162         if self.actuator.is_valid(address):
 163             self.valid_address.setChecked(True)
 164         else:
 165             self.valid_address.setChecked(False)
 166
 167     def show_about(self):
 168         QMessageBox.about(self, "Electrum",
 169             "Electrum's focus is speed, with low resource usage and simplifying Bitcoin. You do not need to perform regular backups, because your wallet can be recovered from a secret phrase that you can memorize or write on paper. Startup times are instant because it operates in conjuction with high-performance servers that handle the most complicated parts of the Bitcoin system.")
 170
 171     def show_report_bug(self):
 172         QMessageBox.information(self, "Electrum - Reporting Bugs",
 173             "Email bug reports to %s@%s.net" % ("genjix", "riseup"))
 174
 175 class BalanceLabel(QLabel):
 176
 177     def __init__(self, parent=None):
 178         super(QLabel, self).__init__("Connecting...", parent)
 179
 180     def set_balances(self, btc_balance, quote_balance, quote_currency):
 181         label_text = "<span style='font-size: 16pt'>%s</span> <span style='font-size: 10pt'>BTC</span> <span style='font-size: 10pt'>(%s %s)</span>" % (btc_balance, quote_balance, quote_currency)
 182         self.setText(label_text)
 183
 184 class TextedLineEdit(QLineEdit):
 185
 186     def __init__(self, inactive_text, parent=None):
 187         super(QLineEdit, self).__init__(parent)
 188         self.inactive_text = inactive_text
 189         self.become_inactive()
 190
 191     def mousePressEvent(self, event):
 192         if self.isReadOnly():
 193             self.become_active()
 194         QLineEdit.mousePressEvent(self, event)
 195
 196     def focusOutEvent(self, event):
 197         if self.text() == "":
 198             self.become_inactive()
 199         QLineEdit.focusOutEvent(self, event)
 200
 201     def focusInEvent(self, event):
 202         if self.isReadOnly():
 203             self.become_active()
 204         QLineEdit.focusInEvent(self, event)
 205
 206     def become_inactive(self):
 207         self.setText(self.inactive_text)
 208         self.setReadOnly(True)
 209         self.recompute_style()
 210
 211     def become_active(self):
 212         self.setText("")
 213         self.setReadOnly(False)
 214         self.recompute_style()
 215
 216     def recompute_style(self):
 217         qApp.style().unpolish(self)
 218         qApp.style().polish(self)
 219         # also possible but more expensive:
 220         #qApp.setStyleSheet(qApp.styleSheet())
 221
 222 class MiniActuator:
 223
 224     def __init__(self, wallet):
 225         self.wallet = wallet
 226
 227     def copy_address(self):
 228         addrs = [addr for addr in self.wallet.all_addresses()
 229                  if not self.wallet.is_change(addr)]
 230         qApp.clipboard().setText(random.choice(addrs))
 231
 232     def send(self, address, amount, parent_window):
 233         recipient = unicode(address).strip()
 234
 235         # alias
 236         match1 = re.match(ALIAS_REGEXP, r)
 237         # label or alias, with address in brackets
 238         match2 = re.match('(.*?)\s*\<([1-9A-HJ-NP-Za-km-z]{26,})\>', r)
 239
 240         if match1:
 241             dest_address = \
 242                 self.wallet.get_alias(recipient, True,
 243                                       self.show_message, self.question)
 244             if not dest_address:
 245                 return
 246         elif match2:
 247             dest_address = match2.group(2)
 248         else:
 249             dest_address = recipient
 250
 251         if not self.wallet.is_valid(dest_address):
 252             QMessageBox.warning(parent_window, _('Error'),
 253                 _('Invalid Bitcoin Address') + ':\n' + dest_address, _('OK'))
 254             return
 255
 256         convert_amount = lambda amount: \
 257             int(decimal.Decimal(unicode(amount)) * 100000000)
 258
 259         amount = convert_amount(amount)
 260
 261         if self.wallet.use_encryption:
 262             password = self.password_dialog()
 263             if not password:
 264                 return
 265         else:
 266             password = None
 267
 268         try:
 269             tx = self.wallet.mktx(dest_address, amount, "", password, fee)
 270         except BaseException, e:
 271             self.show_message(str(e))
 272             return
 273
 274         status, msg = self.wallet.sendtx( tx )
 275         if status:
 276             QMessageBox.information(self, '', _('Payment sent.')+'\n'+msg, _('OK'))
 277             self.do_clear()
 278             self.update_contacts_tab()
 279         else:
 280             QMessageBox.warning(self, _('Error'), msg, _('OK'))
 281
 282     def is_valid(self, address):
 283         return self.wallet.is_valid(address)
 284
 285 class MiniDriver(QObject):
 286
 287     INITIALIZING = 0
 288     CONNECTING = 1
 289     SYNCHRONIZING = 2
 290     READY = 3
 291
 292     def __init__(self, wallet, window):
 293         super(QObject, self).__init__()
 294
 295         self.wallet = wallet
 296         self.window = window
 297
 298         self.wallet.gui_callback = self.update_callback
 299
 300         self.state = None
 301
 302         self.initializing()
 303         self.connect(self, SIGNAL("updatesignal()"), self.update)
 304
 305     # This is a hack to workaround that Qt does not like changing the
 306     # window properties from this other thread before the runloop has
 307     # been called from.
 308     def update_callback(self):
 309         self.emit(SIGNAL("updatesignal()"))
 310
 311     def update(self):
 312         if not self.wallet.interface:
 313             self.initializing()
 314         elif not self.wallet.interface.is_connected:
 315             self.connecting()
 316         elif not self.wallet.blocks == -1:
 317             self.connecting()
 318         elif not self.wallet.is_up_to_date:
 319             self.synchronizing()
 320         else:
 321             self.ready()
 322
 323         if self.wallet.up_to_date:
 324             self.update_balance()
 325
 326     def initializing(self):
 327         if self.state == self.INITIALIZING:
 328             return
 329         self.state = self.INITIALIZING
 330         self.window.deactivate()
 331
 332     def connecting(self):
 333         if self.state == self.CONNECTING:
 334             return
 335         self.state = self.CONNECTING
 336         self.window.deactivate()
 337
 338     def synchronizing(self):
 339         if self.state == self.SYNCHRONIZING:
 340             return
 341         self.state = self.SYNCHRONIZING
 342         self.window.deactivate()
 343
 344     def ready(self):
 345         if self.state == self.READY:
 346             return
 347         self.state = self.READY
 348         self.window.activate()
 349
 350     def update_balance(self):
 351         conf_balance, unconf_balance = self.wallet.get_balance()
 352         balance = conf_balance if unconf_balance is None else unconf_balance
 353         self.window.set_balances(balance, balance * 6, 'EUR')
 354
 355 if __name__ == "__main__":
 356     app = QApplication(sys.argv)
 357     with open("data/style.css") as style_file:
 358         app.setStyleSheet(style_file.read())
 359     mini = MiniWindow()
 360     sys.exit(app.exec_())
 361