bumblebee-status/bumblebee/modules/brightness.py

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# pylint: disable=C0111,R0903
"""Displays the brightness of a display
Parameters:
* brightness.step: The amount of increase/decrease on scroll in % (defaults to 2)
"""
import bumblebee.input
import bumblebee.output
import bumblebee.engine
class Module(bumblebee.engine.Module):
def __init__(self, engine, config):
super(Module, self).__init__(engine, config,
bumblebee.output.Widget(full_text=self.brightness)
)
self._brightness = 0
step = self.parameter("step", 2)
engine.input.register_callback(self, button=bumblebee.input.WHEEL_UP,
cmd="xbacklight +{}%".format(step))
engine.input.register_callback(self, button=bumblebee.input.WHEEL_DOWN,
cmd="xbacklight -{}%".format(step))
def brightness(self):
return "{:03.0f}%".format(self._brightness)
def update(self, widgets):
self._brightness = float(bumblebee.util.execute("xbacklight -get"))
# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4