89bbb81521
FreeCADs property system utilises some pointer math to calculate the offset between property and base class. Due to virtual inheritance of th ePropertyContainer the memory layout has been changed to rather random, which has lead to crashes dependend on the order of object initialisation. The solution is to not make PropertyContaner virtual but a class below, Base::Persitance. Then the memory layout is random for Persistance, but it is perfectly aligned for the base class chains from PropertyContainer onwards as well as from Extension onwards. Hence the proeprty system was changed to take the offset always from those two.
85 lines
3.6 KiB
C++
85 lines
3.6 KiB
C++
/***************************************************************************
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* Copyright (c) Juergen Riegel (juergen.riegel@web.de) 2014 *
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* Copyright (c) Alexander Golubev (Fat-Zer) <fatzer2@gmail.com> 2015 *
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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 library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library 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 library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#ifndef APP_GeoFeatureGroup_H
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#define APP_GeoFeatureGroup_H
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#include <App/FeaturePython.h>
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#include "DocumentObjectGroup.h"
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#include "PropertyGeo.h"
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namespace App
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{
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/**
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* The base class for placeable group of DocumentObjects
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*/
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class AppExport GeoFeatureGroupExtension : public App::GroupExtension
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{
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EXTENSION_PROPERTY_HEADER(App::GeoFeatureGroupExtension);
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public:
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PropertyPlacement Placement;
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/**
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* @brief transformPlacement applies transform to placement of this shape.
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* Override this function to propagate the change of placement to base
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* features.
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* @param transform (input).
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*/
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virtual void transformPlacement(const Base::Placement &transform);
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/// Constructor
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GeoFeatureGroupExtension(void);
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virtual ~GeoFeatureGroupExtension();
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/// Returns all geometrically controlled objects: all objects of this group and it's non-geo subgroups
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std::vector<App::DocumentObject*> getGeoSubObjects () const;
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/// Returns true if either the group or one of it's non-geo subgroups has the object
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bool geoHasObject (const DocumentObject* obj) const;
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/** Returns the geo feature group which contains this object.
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* In case this object is not part of any geoFeatureGroup 0 is returned.
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* Unlike DocumentObjectGroup::getGroupOfObject serches only for GeoFeatureGroups
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* @param obj the object to search for
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* @param indirect if true return if the group that so-called geoHas the object, @see geoHasObject()
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* default is true
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*/
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static DocumentObject* getGroupOfObject(const DocumentObject* obj, bool indirect=true);
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/// Returns true if the given DocumentObject is DocumentObjectGroup but not GeoFeatureGroup
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static bool isNonGeoGroup(const DocumentObject* obj) {
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return obj->hasExtension(GroupExtension::getClassTypeId());
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}
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};
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typedef ExtensionPythonT<GroupExtensionPythonT<GeoFeatureGroupExtension>> GeoFeatureGroupExtensionPython;
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} //namespace App
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#endif // APP_GeoFeatureGroup_H
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