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- from .plugin import Plugin
- import time
- import config
- class Backlight(Plugin):
- def __init__(self):
- self.current_brightness = -1
- self.last_even = 0
- def event_handler(self):
- pass
- def tick(self):
- global everytime_keydown, last_brt
- cur_time = time.time()
- if cur_time - everytime_keydown > 40:
- print("timeout, dim screen %d" % int(cur_time - everytime_keydown))
- try:
- f = open(config.BackLight, "r+")
- except IOError:
- pass
- else:
- with f:
- content = f.readlines()
- content = [x.strip() for x in content]
- brt = int(content[0])
- if brt > 1:
- last_brt = brt ## remember brt for restore
- brt = 1
- f.seek(0)
- f.write(str(brt))
- f.truncate()
- f.close()
- main_screen._TitleBar._InLowBackLight = 0
- everytime_keydown = cur_time
- def RestoreLastBackLightBrightness(main_screen):
- global last_brt
- if last_brt == -1:
- return
- try:
- with open(config.BackLight, "r+") as f:
- content = f.readlines()
- content = [x.strip() for x in content]
- brt = int(content[0])
- if brt < last_brt:
- f.seek(0)
- f.write(str(last_brt))
- f.truncate()
- f.close()
- last_brt = -1
- main_screen._TitleBar._InLowBackLight = -1
- except IOError:
- print("RestoreLastBackLightBrightness open %s failed, try to adjust brightness in Settings" % config.BackLight)
- def tick(main_screen):
- return True
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