forked from openlp/openlp
147 lines
6.1 KiB
Python
147 lines
6.1 KiB
Python
# -*- coding: utf-8 -*-
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# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4
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###############################################################################
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# OpenLP - Open Source Lyrics Projection #
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# --------------------------------------------------------------------------- #
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# Copyright (c) 2008-2015 OpenLP Developers #
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# --------------------------------------------------------------------------- #
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# This program is free software; you can redistribute it and/or modify it #
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# under the terms of the GNU General Public License as published by the Free #
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# Software Foundation; version 2 of the License. #
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# #
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# This program is distributed in the hope that it will be useful, but WITHOUT #
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
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# more details. #
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# #
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# You should have received a copy of the GNU General Public License along #
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# with this program; if not, write to the Free Software Foundation, Inc., 59 #
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# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
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###############################################################################
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"""
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The :mod:`languagemanager` module provides all the translation settings and language file loading for OpenLP.
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"""
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import logging
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import re
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import sys
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from PyQt5 import QtCore, QtWidgets
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from openlp.core.common import AppLocation, Settings, translate, is_win, is_macosx
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log = logging.getLogger(__name__)
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class LanguageManager(object):
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"""
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Helper for Language selection
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"""
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__qm_list__ = {}
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auto_language = False
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@staticmethod
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def get_translator(language):
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"""
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Set up a translator to use in this instance of OpenLP
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:param language: The language to load into the translator
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"""
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if LanguageManager.auto_language:
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language = QtCore.QLocale.system().name()
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lang_path = AppLocation.get_directory(AppLocation.LanguageDir)
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app_translator = QtCore.QTranslator()
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app_translator.load(language, lang_path)
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# A translator for buttons and other default strings provided by Qt.
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if not is_win() and not is_macosx():
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lang_path = QtCore.QLibraryInfo.location(QtCore.QLibraryInfo.TranslationsPath)
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default_translator = QtCore.QTranslator()
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default_translator.load('qt_%s' % language, lang_path)
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return app_translator, default_translator
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@staticmethod
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def find_qm_files():
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"""
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Find all available language files in this OpenLP install
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"""
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log.debug('Translation files: %s', AppLocation.get_directory(AppLocation.LanguageDir))
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trans_dir = QtCore.QDir(AppLocation.get_directory(AppLocation.LanguageDir))
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file_names = trans_dir.entryList(['*.qm'], QtCore.QDir.Files, QtCore.QDir.Name)
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# Remove qm files from the list which start with "qt_".
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file_names = [file_ for file_ in file_names if not file_.startswith('qt_')]
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return list(map(trans_dir.filePath, file_names))
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@staticmethod
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def language_name(qm_file):
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"""
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Load the language name from a language file
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:param qm_file: The file to obtain the name from
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"""
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translator = QtCore.QTranslator()
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translator.load(qm_file)
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return translator.translate('OpenLP.MainWindow', 'English', 'Please add the name of your language here')
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@staticmethod
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def get_language():
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"""
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Retrieve a saved language to use from settings
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"""
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language = Settings().value('core/language')
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language = str(language)
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log.info('Language file: \'%s\' Loaded from conf file' % language)
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if re.match(r'[[].*[]]', language):
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LanguageManager.auto_language = True
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language = re.sub(r'[\[\]]', '', language)
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return language
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@staticmethod
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def set_language(action, message=True):
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"""
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Set the language to translate OpenLP into
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:param action: The language menu option
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:param message: Display the message option
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"""
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language = 'en'
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if action:
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action_name = str(action.objectName())
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if action_name == 'autoLanguageItem':
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LanguageManager.auto_language = True
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else:
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LanguageManager.auto_language = False
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qm_list = LanguageManager.get_qm_list()
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language = str(qm_list[action_name])
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if LanguageManager.auto_language:
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language = '[%s]' % language
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Settings().setValue('core/language', language)
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log.info('Language file: \'%s\' written to conf file' % language)
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if message:
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QtWidgets.QMessageBox.information(None,
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translate('OpenLP.LanguageManager', 'Language'),
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translate('OpenLP.LanguageManager',
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'Please restart OpenLP to use your new language setting.'))
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@staticmethod
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def init_qm_list():
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"""
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Initialise the list of available translations
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"""
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LanguageManager.__qm_list__ = {}
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qm_files = LanguageManager.find_qm_files()
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for counter, qmf in enumerate(qm_files):
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reg_ex = QtCore.QRegExp("^.*i18n/(.*).qm")
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if reg_ex.exactMatch(qmf):
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name = '%s' % reg_ex.cap(1)
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LanguageManager.__qm_list__['%#2i %s' % (counter + 1, LanguageManager.language_name(qmf))] = name
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@staticmethod
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def get_qm_list():
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"""
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Return the list of available translations
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"""
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if not LanguageManager.__qm_list__:
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LanguageManager.init_qm_list()
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return LanguageManager.__qm_list__
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