76 lines
3.4 KiB
Python
76 lines
3.4 KiB
Python
# ***************************************************************************
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# * Copyright (c) 2017 Markus Hovorka <m.hovorka@live.de> *
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# * Copyright (c) 2020 Bernd Hahnebach <bernd@bimstatik.org> *
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# * *
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# * This file is part of the FreeCAD CAx development system. *
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# * *
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# * This program is free software; you can redistribute it and/or modify *
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# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * as published by the Free Software Foundation; either version 2 of *
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# * the License, or (at your option) any later version. *
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# * for detail see the LICENCE text file. *
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# * *
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# * This program is distributed in the hope that it will be useful, *
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# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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# * GNU Library General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Library General Public *
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# * License along with this program; if not, write to the Free Software *
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# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * USA *
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# * *
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# ***************************************************************************
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__title__ = "FreeCAD FEM base python object"
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__author__ = "Markus Hovorka, Bernd Hahnebach"
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__url__ = "https://www.freecad.org"
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## @package base_fempythonobject
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# \ingroup FEM
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# \brief base object for FEM Python Features
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class BaseFemPythonObject:
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BaseType = "Fem::BaseFemPythonObject"
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def __init__(self, obj):
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# self.Object = obj # keep a ref to the DocObj for nonGui usage
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obj.Proxy = self # link between App::DocumentObject to this object
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# they are needed, see:
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# https://forum.freecad.org/viewtopic.php?f=18&t=44021
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# https://forum.freecad.org/viewtopic.php?f=18&t=44009
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def dumps(self):
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return None
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def loads(self, state):
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return None
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class _PropHelper:
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"""
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Helper class to manage property data inside proxy objects.
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Initialization keywords are the same used with PropertyContainer
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to add dynamics properties plus "value" for the initial value.
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"""
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def __init__(self, **kwds):
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self.value = kwds.pop("value")
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self.info = kwds
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self.name = kwds["name"]
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def add_to_object(self, obj):
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obj.addProperty(**self.info)
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obj.setPropertyStatus(self.name, "LockDynamic")
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setattr(obj, self.name, self.value)
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def handle_change_type(self, obj, old_type, convert_old_value=lambda x: x):
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if obj.getTypeIdOfProperty(self.name) == old_type:
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new_value = convert_old_value(obj.getPropertyByName(self.name))
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obj.setPropertyStatus(self.name, "-LockDynamic")
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obj.removeProperty(self.name)
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self.add_to_object(obj)
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setattr(obj, self.name, new_value)
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