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"""
****************************************************************************
convertall.py, the main program file
ConvertAll, a units conversion program
Copyright (C) 2020, Douglas W. Bell
This is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License, either Version 2 or any later
version. This program is distributed in the hope that it will be useful,
but WITTHOUT ANY WARRANTY. See the included LICENSE file for details.
*****************************************************************************
"""
__progname__ = 'ConvertAll'
__version__ = '0.8.0'
__author__ = 'Doug Bell'
dataFilePath = None # modified by install script if required
helpFilePath = None # modified by install script if required
iconPath = None # modified by install script if required
translationPath = 'translations'
lang = ''
import sys
import os.path
import locale
import getopt
import signal
import builtins
from PyQt5.QtCore import (QCoreApplication, QTranslator)
from PyQt5.QtWidgets import QApplication
def loadTranslator(fileName, app):
"""Load and install qt translator, return True if sucessful.
"""
translator = QTranslator(app)
modPath = os.path.abspath(sys.path[0])
if modPath.endswith('.zip'): # for py2exe
modPath = os.path.dirname(modPath)
path = os.path.join(modPath, translationPath)
result = translator.load(fileName, path)
if not result:
path = os.path.join(modPath, '..', translationPath)
result = translator.load(fileName, path)
if not result:
path = os.path.join(modPath, '..', 'i18n', translationPath)
result = translator.load(fileName, path)
if result:
QCoreApplication.installTranslator(translator)
return True
else:
print('Warning: translation file "{0}" could not be loaded'.
format(fileName))
return False
def setupTranslator(app):
"""Set language, load translators and setup translator function.
"""
try:
locale.setlocale(locale.LC_ALL, '')
except locale.Error:
pass
global lang
lang = os.environ.get('LC_MESSAGES', '')
if not lang:
lang = os.environ.get('LANG', '')
if not lang:
try:
lang = locale.getdefaultlocale()[0]
except ValueError:
pass
if not lang:
lang = ''
numTranslators = 0
if lang and lang[:2] not in ['C', 'en']:
numTranslators += loadTranslator('qt_{0}'.format(lang), app)
numTranslators += loadTranslator('convertall_{0}'.format(lang), app)
def translate(text, comment=''):
"""Translation function that sets context to calling module's
filename.
"""
try:
frame = sys._getframe(1)
fileName = frame.f_code.co_filename
finally:
del frame
context = os.path.basename(os.path.splitext(fileName)[0])
return QCoreApplication.translate(context, text, comment)
def markNoTranslate(text, comment=''):
return text
if numTranslators:
builtins._ = translate
else:
builtins._ = markNoTranslate
def main():
if len(sys.argv) > 1:
try:
opts, args = getopt.gnu_getopt(sys.argv, 'd:fhiqset',
['decimals=', 'fixed-decimals',
'help', 'interactive', 'quiet',
'sci-notation', 'eng-notation',
'test'])
except getopt.GetoptError:
# check that arguments aren't Qt GUI options
if sys.argv[1][:3] not in ['-ba', '-bg', '-bt', '-bu', '-cm',
'-di', '-do', '-fg', '-fn', '-fo',
'-ge', '-gr', '-im', '-in', '-na',
'-nc', '-no', '-re', '-se', '-st',
'-sy', '-ti', '-vi', '-wi']:
app = QCoreApplication(sys.argv)
setupTranslator(app)
import cmdline
cmdline.printUsage()
sys.exit(2)
else:
app = QCoreApplication(sys.argv)
setupTranslator(app)
import cmdline
try:
cmdline.parseArgs(opts, args[1:])
except KeyboardInterrupt:
pass
return
userStyle = '-style' in ' '.join(sys.argv)
app = QApplication(sys.argv)
setupTranslator(app) # must be before importing any convertall modules
import convertdlg
if not userStyle:
QApplication.setStyle('fusion')
win = convertdlg.ConvertDlg()
win.show()
signal.signal(signal.SIGINT, signal.SIG_IGN)
app.exec_()
if __name__ == '__main__':
main()
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