61 lines
1.7 KiB
Python
61 lines
1.7 KiB
Python
'''QrScanner Base Abstract implementation
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'''
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__all__ = ('ScannerBase', 'QRScanner')
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from collections import namedtuple
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from kivy.uix.anchorlayout import AnchorLayout
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from kivy.core import core_select_lib
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from kivy.metrics import dp
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from kivy.properties import ListProperty, BooleanProperty
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from kivy.factory import Factory
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class ScannerBase(AnchorLayout):
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''' Base implementation for camera based scanner
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'''
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camera_size = ListProperty([320, 240] if dp(1) < 2 else [640, 480])
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symbols = ListProperty([])
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# XXX can't work now, due to overlay.
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show_bounds = BooleanProperty(False)
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running = BooleanProperty(False)
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Qrcode = namedtuple('Qrcode',
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['type', 'data', 'bounds', 'quality', 'count'])
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def start(self):
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pass
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def stop(self):
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pass
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def on_symbols(self, instance, value):
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#if self.show_bounds:
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# self.update_bounds()
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pass
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def update_bounds(self):
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self.canvas.after.remove_group('bounds')
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if not self.symbols:
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return
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with self.canvas.after:
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Color(1, 0, 0, group='bounds')
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for symbol in self.symbols:
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x, y, w, h = symbol.bounds
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x = self._camera.right - x - w
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y = self._camera.top - y - h
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Line(rectangle=[x, y, w, h], group='bounds')
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# load QRCodeDetector implementation
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QRScanner = core_select_lib('qr_scanner', (
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('android', 'scanner_android', 'ScannerAndroid'),
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('camera', 'scanner_camera', 'ScannerCamera')), False, 'electrum_gui.kivy')
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Factory.register('QRScanner', cls=QRScanner)
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