util/misc.py
author Edouard Tisserant
Fri, 15 Jun 2018 09:48:05 +0200
changeset 2188 7f59aa398669
parent 1953 5736d25bb393
child 2456 7373e3048167
permissions -rw-r--r--
WxGlade HMI extension now does only instanciate wx object who's name match extension's name. If no object match the name and no code is provided in 'start' user python code section, then a warning is issued
#!/usr/bin/env python
# -*- coding: utf-8 -*-

# This file is part of Beremiz, a Integrated Development Environment for
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
# See COPYING file for copyrights details.
#
# 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 2
# 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

"""
Misc definitions
"""


from __future__ import absolute_import
import os

from util.BitmapLibrary import AddBitmapFolder
from util.TranslationCatalogs import AddCatalog


def CheckPathPerm(path):
    """ Helper func to check path write permission """
    if path is None or not os.path.isdir(path):
        return False
    for root, dirs, files in os.walk(path):
        files = [f for f in files if not f[0] == '.']
        dirs[:] = [d for d in dirs if not d[0] == '.']
        for name in files:
            if os.access(root, os.W_OK) is not True or os.access(os.path.join(root, name), os.W_OK) is not True:
                return False
    return True


def GetClassImporter(param):
    """
    is used to resolve library class names in features.py
    if param is a string, returns a callable that return the class pointed by param
    if a class is given, then returns a callable that returns the given class.
    """

    if isinstance(param, str):
        def factory():
            # on-demand import, only when using class
            mod = __import__(param.rsplit('.', 1)[0])
            return reduce(getattr, param.split('.')[1:], mod)
        return factory
    else:
        return lambda: param


def InstallLocalRessources(CWD):
    # Beremiz bitmaps
    AddBitmapFolder(os.path.join(CWD, "images"))

    # Internationalization
    AddCatalog(os.path.join(CWD, "locale"))