You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
105 lines
2.9 KiB
105 lines
2.9 KiB
'''QrScanner Base Abstract implementation |
|
''' |
|
|
|
__all__ = ('ScannerBase', 'QRScanner') |
|
|
|
from collections import namedtuple |
|
|
|
from kivy.uix.anchorlayout import AnchorLayout |
|
from kivy.core import core_select_lib |
|
from kivy.properties import ListProperty, BooleanProperty |
|
from kivy.factory import Factory |
|
|
|
|
|
def encode_uri(addr, amount=0, label='', message='', size='', |
|
currency='btc'): |
|
''' Convert to BIP0021 compatible URI |
|
''' |
|
uri = 'bitcoin:{}'.format(addr) |
|
first = True |
|
if amount: |
|
uri += '{}amount={}'.format('?' if first else '&', amount) |
|
first = False |
|
if label: |
|
uri += '{}label={}'.format('?' if first else '&', label) |
|
first = False |
|
if message: |
|
uri += '{}?message={}'.format('?' if first else '&', message) |
|
first = False |
|
if size: |
|
uri += '{}size={}'.format('?' if not first else '&', size) |
|
return uri |
|
|
|
def decode_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(':', '://') |
|
|
|
try: |
|
uri = urlparse(uri) |
|
except NameError: |
|
# delayed import |
|
from urlparse import urlparse, parse_qs |
|
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', 'size'): |
|
result[k] = v[0] |
|
|
|
return result |
|
|
|
|
|
class ScannerBase(AnchorLayout): |
|
''' Base implementation for camera based scanner |
|
''' |
|
camera_size = ListProperty([320, 240]) |
|
|
|
symbols = ListProperty([]) |
|
|
|
# XXX can't work now, due to overlay. |
|
show_bounds = BooleanProperty(False) |
|
|
|
Qrcode = namedtuple('Qrcode', |
|
['type', 'data', 'bounds', 'quality', 'count']) |
|
|
|
def start(self): |
|
pass |
|
|
|
def stop(self): |
|
pass |
|
|
|
def on_symbols(self, instance, value): |
|
#if self.show_bounds: |
|
# self.update_bounds() |
|
pass |
|
|
|
def update_bounds(self): |
|
self.canvas.after.remove_group('bounds') |
|
if not self.symbols: |
|
return |
|
with self.canvas.after: |
|
Color(1, 0, 0, group='bounds') |
|
for symbol in self.symbols: |
|
x, y, w, h = symbol.bounds |
|
x = self._camera.right - x - w |
|
y = self._camera.top - y - h |
|
Line(rectangle=[x, y, w, h], group='bounds') |
|
|
|
|
|
# load QRCodeDetector implementation |
|
|
|
QRScanner = core_select_lib('qr_scanner', ( |
|
('android', 'scanner_android', 'ScannerAndroid'), |
|
('camera', 'scanner_camera', 'ScannerCamera')), False, 'electrum_gui.kivy') |
|
Factory.register('QRScanner', cls=QRScanner)
|
|
|