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.
60 lines
1.7 KiB
60 lines
1.7 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.metrics import dp
|
|
from kivy.properties import ListProperty, BooleanProperty
|
|
from kivy.factory import Factory
|
|
|
|
|
|
class ScannerBase(AnchorLayout):
|
|
''' Base implementation for camera based scanner
|
|
'''
|
|
camera_size = ListProperty([320, 240] if dp(1) < 2 else [640, 480])
|
|
|
|
symbols = ListProperty([])
|
|
|
|
# XXX can't work now, due to overlay.
|
|
show_bounds = BooleanProperty(False)
|
|
|
|
running = 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)
|
|
|