electrum-bitcoinprivate/gui/kivy/i18n.py

47 lines
1.1 KiB
Python

import gettext
class _(str):
observers = set()
lang = None
def __new__(cls, s):
if _.lang is None:
_.switch_lang('en')
t = _.translate(s)
o = super(_, cls).__new__(cls, t)
o.source_text = s
return o
@staticmethod
def translate(s, *args, **kwargs):
return _.lang(s)
@staticmethod
def bind(label):
try:
_.observers.add(label)
except:
pass
# garbage collection
new = set()
for label in _.observers:
try:
new.add(label)
except:
pass
_.observers = new
@staticmethod
def switch_lang(lang):
# get the right locales directory, and instanciate a gettext
from electrum_bitcoinprivate.i18n import LOCALE_DIR
locales = gettext.translation('electrum', LOCALE_DIR, languages=[lang], fallback=True)
_.lang = locales.gettext
for label in _.observers:
try:
label.text = _(label.text.source_text)
except:
pass