plugins/pointofsale.py

   1 import re
   2 import platform
   3 from decimal import Decimal
   4
   5 from PyQt4.QtGui import *
   6 from PyQt4.QtCore import *
   7 import PyQt4.QtCore as QtCore
   8 import PyQt4.QtGui as QtGui
   9
  10 from electrum_gui.qrcodewidget import QRCodeWidget
  11 from electrum_gui import bmp, pyqrnative
  12
  13 from electrum_gui.i18n import _
  14
  15
  16 if platform.system() == 'Windows':
  17     MONOSPACE_FONT = 'Lucida Console'
  18 elif platform.system() == 'Darwin':
  19     MONOSPACE_FONT = 'Monaco'
  20 else:
  21     MONOSPACE_FONT = 'monospace'
  22
  23 column_index = 3
  24
  25 class QR_Window(QWidget):
  26
  27     def __init__(self, exchanger):
  28         QWidget.__init__(self)
  29         self.exchanger = exchanger
  30         self.setWindowTitle('Electrum - '+_('Invoice'))
  31         self.setMinimumSize(800, 250)
  32         self.address = ''
  33         self.labe = ''
  34         self.amount = 0
  35         self.setFocusPolicy(QtCore.Qt.NoFocus)
  36
  37         main_box = QHBoxLayout()
  38
  39         self.qrw = QRCodeWidget()
  40         main_box.addWidget(self.qrw, 1)
  41
  42         vbox = QVBoxLayout()
  43         main_box.addLayout(vbox)
  44
  45         self.address_label = QLabel("")
  46         #self.address_label.setFont(QFont(MONOSPACE_FONT))
  47         vbox.addWidget(self.address_label)
  48
  49         self.label_label = QLabel("")
  50         vbox.addWidget(self.label_label)
  51
  52         self.amount_label = QLabel("")
  53         vbox.addWidget(self.amount_label)
  54
  55         vbox.addStretch(1)
  56         self.setLayout(main_box)
  57
  58
  59     def set_content(self, addr, label, amount, currency):
  60         self.address = addr
  61         address_text = "<span style='font-size: 18pt'>%s</span>" % addr if addr else ""
  62         self.address_label.setText(address_text)
  63
  64         if currency == 'BTC': currency = None
  65         amount_text = ''
  66         if amount:
  67             if currency:
  68                 self.amount = Decimal(amount) / self.exchanger.exchange(1, currency) if currency else amount
  69             else:
  70                 self.amount = Decimal(amount)
  71             self.amount = self.amount.quantize(Decimal('1.0000'))
  72
  73             if currency:
  74                 amount_text += "<span style='font-size: 18pt'>%s %s</span><br/>" % (amount, currency)
  75             amount_text += "<span style='font-size: 21pt'>%s</span> <span style='font-size: 16pt'>BTC</span> " % str(self.amount)
  76         self.amount_label.setText(amount_text)
  77
  78         self.label = label
  79         label_text = "<span style='font-size: 21pt'>%s</span>" % label if label else ""
  80         self.label_label.setText(label_text)
  81
  82         msg = 'bitcoin:'+self.address
  83         if self.amount is not None:
  84             msg += '?amount=%s'%(str( self.amount))
  85             if self.label is not None:
  86                 msg += '&label=%s'%(self.label)
  87         elif self.label is not None:
  88             msg += '?label=%s'%(self.label)
  89
  90         self.qrw.set_addr( msg )
  91
  92
  93
  94
  95
  96
  97 def get_info():
  98     return 'Point of Sale', _('Show QR code window and amounts requested for each address. Add menu item to request amount.')
  99
 100 def init(gui):
 101     gui.requested_amounts = gui.config.get('requested_amounts',{})
 102     gui.qr_window = None
 103
 104
 105
 106 enabled = False
 107
 108 def is_enabled():
 109     return False
 110
 111 def toggle(gui):
 112     global enabled
 113     enabled = not enabled
 114     toggle_QR_window(gui, enabled)
 115
 116     if enabled:
 117         gui.expert_mode = True
 118         gui.receive_list.setHeaderLabels([ _('Address'), _('Label'), _('Balance'), _('Request')])
 119
 120         gui.set_hook('item_changed', item_changed)
 121         gui.set_hook('current_item_changed', recv_changed)
 122         gui.set_hook('receive_menu', receive_menu)
 123         gui.set_hook('update_receive_item', update_receive_item)
 124         gui.set_hook('timer_actions', timer_actions)
 125         gui.set_hook('close_main_window', close_main_window)
 126     else:
 127         gui.receive_list.setHeaderLabels([ _('Address'), _('Label'), _('Balance'), _('Tx')])
 128         gui.unset_hook('item_changed', item_changed)
 129         gui.unset_hook('current_item_changed', recv_changed)
 130         gui.unset_hook('receive_menu', receive_menu)
 131         gui.unset_hook('update_receive_item', update_receive_item)
 132         gui.unset_hook('timer_actions', timer_actions)
 133         gui.unset_hook('close_main_window', close_main_window)
 134
 135
 136     return enabled
 137
 138
 139 def toggle_QR_window(self, show):
 140     if show and not self.qr_window:
 141         self.qr_window = QR_Window(self.exchanger)
 142         self.qr_window.setVisible(True)
 143         self.qr_window_geometry = self.qr_window.geometry()
 144         item = self.receive_list.currentItem()
 145         if item:
 146             address = str(item.text(1))
 147             label = self.wallet.labels.get(address)
 148             amount, currency = self.requested_amounts.get(address, (None, None))
 149             self.qr_window.set_content( address, label, amount, currency )
 150
 151     elif show and self.qr_window and not self.qr_window.isVisible():
 152         self.qr_window.setVisible(True)
 153         self.qr_window.setGeometry(self.qr_window_geometry)
 154
 155     elif not show and self.qr_window and self.qr_window.isVisible():
 156         self.qr_window_geometry = self.qr_window.geometry()
 157         self.qr_window.setVisible(False)
 158
 159
 160
 161
 162 def item_changed(self, item, column):
 163     if column == column_index:
 164         address = str( item.text(0) )
 165         text = str( item.text(column) )
 166         try:
 167             seq = self.wallet.get_address_index(address)
 168             index = seq[-1]
 169         except:
 170             print "cannot get index"
 171             return
 172
 173         text = text.strip().upper()
 174         print text
 175         m = re.match('^(\d+(|\.\d*))\s*(|BTC|EUR|USD|GBP|CNY|JPY|RUB|BRL)$', text)
 176         if m:
 177             amount = m.group(1)
 178             currency = m.group(3)
 179             if not currency:
 180                 currency = 'BTC'
 181             else:
 182                 currency = currency.upper()
 183
 184             self.requested_amounts[address] = (amount, currency)
 185             self.wallet.config.set_key('requested_amounts', self.requested_amounts, True)
 186
 187             label = self.wallet.labels.get(address)
 188             if label is None:
 189                 label = self.merchant_name + ' - %04d'%(index+1)
 190                 self.wallet.labels[address] = label
 191
 192             if self.qr_window:
 193                 self.qr_window.set_content( address, label, amount, currency )
 194
 195         else:
 196             item.setText(column,'')
 197             if address in self.requested_amounts:
 198                 self.requested_amounts.pop(address)
 199
 200         self.update_receive_item(self.receive_list.currentItem())
 201
 202
 203 def recv_changed(self, a):
 204     if a is not None and self.qr_window and self.qr_window.isVisible():
 205         address = str(a.text(0))
 206         label = self.wallet.labels.get(address)
 207         try:
 208             amount, currency = self.requested_amounts.get(address, (None, None))
 209         except:
 210             amount, currency = None, None
 211         self.qr_window.set_content( address, label, amount, currency )
 212
 213
 214
 215 def edit_amount(self):
 216     l = self.receive_list
 217     item = l.currentItem()
 218     item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 219     l.editItem( item, column_index )
 220     item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 221
 222 def receive_menu(self, menu):
 223     menu.addAction(_("Request amount"), lambda: edit_amount(self))
 224
 225
 226 def update_receive_item(self, address, item):
 227     try:
 228         amount, currency = self.requested_amounts.get(address, (None, None))
 229     except:
 230         print "cannot get requested amount", address, self.requested_amounts.get(address)
 231         amount, currency = None, None
 232         self.requested_amounts.pop(address)
 233
 234     amount_str = amount + (' ' + currency if currency else '') if amount is not None  else ''
 235     item.setData(column_index,0,amount_str)
 236
 237
 238 def close_main_window(self):
 239     if self.qr_window:
 240         self.qr_window.close()
 241         self.qr_window = None
 242
 243
 244 def timer_actions(self):
 245     if self.qr_window:
 246         self.qr_window.qrw.update_qr()