#!/usr/bin/env python3 # 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 Affero 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/>. import sys import time import signal import datetime ## Warn if we are using configuration script arguments if len(parser.files) > 0: print('%s: warning: configuration script arguments are not supported in ad-hoc mode' % sys.argv[0]) ## Determine whether we should run in continuous mode continuous = any(map(lambda a : (a is not None) and (len(a) == 2), settings)) continuous = continuous or (location is not None) ## Select default settings when not specified d = lambda a, default : [default, default] if a is None else (a * 2 if len(a) == 1 else a) gammas = d(gammas, "1:1:1") rgb_brightnesses = d(rgb_brightnesses, "1") cie_brightnesses = d(cie_brightnesses, "1") if temperatures is None: temperatures = ['3700', '6500'] elif len(temperatures) == 1: temperatures *= 2 ## Parse string arrays into floating point matrices settings = [gammas, rgb_brightnesses, cie_brightnesses, temperatures, [location]] s = lambda f, v : f(v) if v is not None else None settings = [s(lambda c : [s(lambda x : [float(y) for y in x.split(':')], x) for x in c], c) for c in settings] [gammas, rgb_brightnesses, cie_brightnesses, temperatures, location] = settings location = None if location is None else location[0] ## Select method for calculating to what degree the adjustments should be applied alpha = lambda : 1 if continuous: if location is not None: alpha = lambda : sun(*location) else: def alpha_(): now = datetime.datetime.now() hh, mm = now.hour, now.minute + now.second / 60 if 12 <= hh <= 22: return 1 - (hh - 12) / (22 - 12) - mm / 60 if hh <= 12: hh += 22 - 12 return (hh - 22) / 14 + m / 60 alpha = alpha_ ## Set monitor control def reduce(f, items): ''' https://en.wikipedia.org/wiki/Fold_(higher-order_function) ''' if len(items) < 2: return items rc = items[0] for i in range(1, len(items)): rc = f(rc, items[i]) return rc output = reduce(lambda x, y : x + y, [a.split(',') for a in output]) monitor_controller = lambda : randr(*output) def apply(dayness, pureness): ''' Apply adjustments @param dayness:float The visibility of the sun @param pureness:float Transitioning progress, 1 for at clean state, 0 for at adjusted state ''' start_over() interpol_ = lambda d, p, a, r : d * r + (p[0] * a + p[1] * (1 - a)) * (1 - r) interpol = lambda d, p : [interpol_(d, [p[0][i], p[1][i]], dayness, pureness) for i in range(len(p[0]))] temperature(*interpol(6500, temperatures), algorithm = lambda t : divide_by_maximum(cmf_10deg(t))) rgb_brightness(*interpol(1, rgb_brightnesses)) cie_brightness(*interpol(1, cie_brightnesses)) clip() gamma(*interpol(1, gammas)) clip() monitor_controller() if continuous and not doreset: ## Continuous mode def periodically(year, month, day, hour, minute, second, weekday, fade): apply(alpha(), 0 if fade is None else 1 - abs(fade)) else: ## One shot mode if not panicgate: signal.signal(signal.SIGTERM, signal_SIGTERM) trans = 0 while running: try: apply(alpha(), trans if doreset else 1 - trans) trans += 0.05 time.sleep(0.1) except KeyboardInterrupt: signal_SIGTERM(0, None) if trans >= 1: break apply(alpha(), 1 if doreset else 0)