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another plugin for qrscanner

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This commit is contained in:
thomasv
2013-03-03 14:49:42 +01:00
parent cd9f366735
commit ba15b9eb6b
4 changed files with 47 additions and 21 deletions
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22
gui/gui_classic.py
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@@ -42,7 +42,7 @@ from electrum.wallet import format_satoshis
from electrum.bitcoin import Transaction, is_valid
from electrum import mnemonic
import bmp, pyqrnative, qrscanner
import bmp, pyqrnative
import exchange_rate
from decimal import Decimal
@@ -620,24 +620,7 @@ class ElectrumWindow(QMainWindow):
self.payto_e = QLineEdit()
grid.addWidget(QLabel(_('Pay to')), 1, 0)
grid.addWidget(self.payto_e, 1, 1, 1, 3)
def fill_from_qr():
qrcode = qrscanner.scan_qr()
if 'address' in qrcode:
self.payto_e.setText(qrcode['address'])
if 'amount' in qrcode:
self.amount_e.setText(str(qrcode['amount']))
if 'label' in qrcode:
self.message_e.setText(qrcode['label'])
if 'message' in qrcode:
self.message_e.setText("%s (%s)" % (self.message_e.text(), qrcode['message']))
if qrscanner.is_available():
b = QPushButton(_("Scan QR code"))
b.clicked.connect(fill_from_qr)
grid.addWidget(b, 1, 5)
grid.addWidget(HelpButton(_('Recipient of the funds.') + '\n\n' + _('You may enter a Bitcoin address, a label from your list of contacts (a list of completions will be proposed), or an alias (email-like address that forwards to a Bitcoin address)')), 1, 4)
completer = QCompleter()
@@ -714,6 +697,7 @@ class ElectrumWindow(QMainWindow):
self.amount_e.textChanged.connect(lambda: entry_changed(False) )
self.fee_e.textChanged.connect(lambda: entry_changed(True) )
self.wallet.run_hook('create_send_tab',(self,grid))
return w2

2
gui/qrcodewidget.py
View File

@@ -3,7 +3,7 @@ from PyQt4.QtCore import *
import PyQt4.QtCore as QtCore
import PyQt4.QtGui as QtGui
import bmp, pyqrnative, qrscanner
import bmp, pyqrnative
class QRCodeWidget(QWidget):

83
gui/qrscanner.py
View File

@@ -1,83 +0,0 @@
from electrum.util import print_error
try:
import zbar
except ImportError:
print_error("Install zbar package to enable QR scans")
zbar = None
from urlparse import urlparse, parse_qs
def is_available():
if not zbar:
return False
try:
proc = zbar.Processor()
proc.init()
except zbar.SystemError:
# Cannot open video device
return False
return True
def scan_qr():
proc = zbar.Processor()
proc.init()
proc.visible = True
while True:
try:
proc.process_one()
except:
# User closed the preview window
return {}
for r in proc.results:
if str(r.type) != 'QRCODE':
continue
return parse_uri(r.data)
def parse_uri(uri):
if ':' not in uri:
# It's just an address (not BIP21)
return {'address': uri}
if '//' not in uri:
# Workaround for urlparse, it don't handle bitcoin: URI properly
uri = uri.replace(':', '://')
uri = urlparse(uri)
result = {'address': uri.netloc}
if uri.path.startswith('?'):
params = parse_qs(uri.path[1:])
else:
params = parse_qs(uri.path)
for k,v in params.items():
if k in ('amount', 'label', 'message'):
result[k] = v[0]
return result
if __name__ == '__main__':
# Run some tests
assert(parse_uri('1Marek48fwU7mugmSe186do2QpUkBnpzSN') ==
{'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
assert(parse_uri('bitcoin://1Marek48fwU7mugmSe186do2QpUkBnpzSN') ==
{'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
assert(parse_uri('bitcoin:1Marek48fwU7mugmSe186do2QpUkBnpzSN') ==
{'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
assert(parse_uri('bitcoin:1Marek48fwU7mugmSe186do2QpUkBnpzSN?amount=10') ==
{'amount': '10', 'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
assert(parse_uri('bitcoin:1Marek48fwU7mugmSe186do2QpUkBnpzSN?amount=10&label=slush&message=Small%20tip%20to%20slush') ==
{'amount': '10', 'label': 'slush', 'message': 'Small tip to slush', 'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})