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# SPDX-License-Identifier: LGPL-3.0-or-later
# Copyright (C) 2020 Daniel Thompson
import wasp
class FlashlightApp(object):
"""Trivial flashlight application.
Shows a pure white screen with the backlight set to maximum.
"""
def foreground(self):
"""Activate the application."""
self.on_screen = ( -1, -1, -1, -1, -1, -1 )
self.draw()
wasp.system.request_tick(1000)
self._brightness = wasp.system.brightness
wasp.system.brightness = 3
def background(self):
"""De-activate the application (without losing state)."""
wasp.system.brightness = self._brightness
def sleep(self):
return False
def tick(self, ticks):
wasp.system.keep_awake()
def draw(self):
"""Redraw the display from scratch."""
display = wasp.watch.display
display.fill(0xffff)
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