# -*- python -*- # This is a small example that inverts the colours when the # battery's capacity is low. # Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # Invert the colours when the battery capacity is below this threshold. threshold = 5 # percent # Current status. inverted = False def get_capacity(): ''' Get the current capacity and charging status @return (:bool, :float) Whether the battery is discharging and the capacity (in percents) ''' capacity, discharging = None, None # Get capacity. #with open('/sys/class/power_supply/BAT1/capacity', 'r') as file: # capacity = int(file.read().split('\n')[0]) # More accurate capacity. charge_full, charge_now = None, None with open('/sys/class/power_supply/BAT1/charge_full', 'r') as file: charge_full = int(file.read().split('\n')[0]) with open('/sys/class/power_supply/BAT1/charge_now', 'r') as file: charge_now = int(file.read().split('\n')[0]) capacity = charge_now * 100 / charge_full # Is the battery discharging? with open('/sys/class/power_supply/BAT1/status', 'r') as file: discharging = file.read().split('\n')[0] == 'Discharging' return (discharging, capacity) # Lets wait only 30 seconds, instead of a minute before running again. wait_period = 30 # Do not fade in or out. fadeout_time = None fadein_time = None def periodically(year, month, day, hour, minute, second, weekday, fade): ''' Invoked periodically If you want to control at what to invoke this function next time you can set the value of the global variable `wait_period` to the number of seconds to wait before invoking this function again. The value does not need to be an integer. @param year:int The year @param month:int The month, 1 = January, 12 = December @param day:int The day, minimum value is 1, probable maximum value is 31 (*) @param hour:int The hour, minimum value is 0, maximum value is 23 @param minute:int The minute, minimum value is 0, maximum value is 59 @param second:int The second, minimum value is 0, probable maximum value is 60 (**) @param weekday:int The weekday, 1 = Monday, 7 = Sunday @param fade:float? Blueshift can use this function to fade into a state when it start or exits. `fade` can either be negative, zero or positive or `None`, but the magnitude of value cannot exceed 1. When Blueshift starts, this function will be invoked multiple with the time parameters of the time it is invoked and each time `fade` will increase towards 1, starting at 0, when the value is 1, the settings should be applied to 100 %. After this this function will be invoked once again with `fade` being `None`. When Blueshift exits the same behaviour is used except, `fade` decrease towards -1 but start slightly below 0, when -1 is reached all settings should be normal. Then Blueshift will NOT invoke this function with `fade` being `None`, instead it will by itself revert all settings and quit. (*) Can be exceeded if the calendar system is changed, like in 1712-(02)Feb-30 (**) See https://en.wikipedia.org/wiki/Leap_second ''' global inverted (discharging, capacity) = get_capacity() should_invert = discharging and (capacity <= threshold) if should_invert ^ inverted: inverted = should_invert start_over() if should_invert: negative() monitor_controller()