i3pystatus/i3pystatus/clock.py
Lukáš Mandák efd1c5f09f fixed #177
2015-03-07 12:47:20 +01:00

97 lines
3.1 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import locale
import datetime
from i3pystatus import IntervalModule
class Clock(IntervalModule):
"""
This class shows a clock
format can be passed in four different ways:
- single string, no timezone, just the strftime-format
- one two-tuple, first is the format, second the timezone
- list of strings - no timezones
- list of two tuples, first is the format, second is timezone
"""
settings = (
("format", "`None` means to use the default, locale-dependent format. Can cycle between formats with mousewheel"),
("color", "RGB hexadecimal code color specifier, default to #ffffff, set to `i3Bar` to use i3 bar default"),
)
format = None
color = "#ffffff"
interval = 1
current_format_id = 0
on_upscroll = ["scroll_format", 1]
on_downscroll = ["scroll_format", -1]
def init(self):
env_lang = os.environ.get('LC_TIME', None)
if env_lang is None:
env_lang = os.environ.get('LANG', None)
if env_lang is not None:
if env_lang.find('.') != -1:
lang = tuple(env_lang.split('.', 1))
else:
lang = (env_lang, None)
else:
lang = (None, None)
if lang != locale.getlocale(locale.LC_TIME):
# affects datetime.time.strftime() in whole program
locale.setlocale(locale.LC_TIME, lang)
if self.format is None:
if lang[0] == 'en_US':
# MDY format - United States of America
self.format = ["%a %b %-d %X"]
else:
# DMY format - almost all other countries
self.format = ["%a %-d %b %X"]
elif isinstance(self.format, str) or isinstance(self.format, tuple):
self.format = [self.format]
self.format = self.expand_formats(self.format)
@staticmethod
def expand_formats(formats):
def expand_format(format_):
if isinstance(format_, tuple):
return (format_[0], format_[1] if len(format_) > 1 else None)
return (format_, None)
return [expand_format(format_) for format_ in formats]
def run(self):
# Safest way is to work from utc and localize afterwards
if self.format[self.current_format_id][1]:
try:
import pytz
except ImportError as e:
raise RuntimeError("Need pytz for timezones") from e
utc_dt = pytz.utc.localize(datetime.datetime.utcnow())
tz = pytz.timezone(self.format[self.current_format_id][1])
dt = tz.normalize(utc_dt.astimezone(tz))
else:
dt = datetime.datetime.now()
output = dt.strftime(self.format[self.current_format_id][0])
self.output = {
"full_text": output,
"urgent": False,
}
if self.color != "i3Bar":
self.output["color"] = self.color
def scroll_format(self, step=1):
self.current_format_id = (self.current_format_id + step) % len(self.format)