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