src/Mod/Fem/App/FemMeshObject.cpp

/***************************************************************************
 *   Copyright (c) 2008 Jürgen Riegel <juergen.riegel@web.de>              *
 *                                                                         *
 *   This file is part of the FreeCAD CAx development system.              *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Library General Public           *
 *   License as published by the Free Software Foundation; either          *
 *   version 2 of the License, or (at your option) any later version.      *
 *                                                                         *
 *   This library  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 Library General Public License for more details.                  *
 *                                                                         *
 *   You should have received a copy of the GNU Library General Public     *
 *   License along with this library; see the file COPYING.LIB. If not,    *
 *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
 *   Suite 330, Boston, MA  02111-1307, USA                                *
 *                                                                         *
 ***************************************************************************/


#include <App/FeaturePythonPyImp.h>
#include <App/GeoFeaturePy.h>
#include <Base/Placement.h>

#include "FemMesh.h"
#include "FemMeshObject.h"


using namespace Fem;
using namespace App;

PROPERTY_SOURCE(Fem::FemMeshObject, App::GeoFeature)


FemMeshObject::FemMeshObject()
{
    ADD_PROPERTY_TYPE(FemMesh, (), "FEM Mesh", Prop_NoRecompute, "FEM Mesh object");
    // in the regard of recomputes see:
    // https://forum.freecad.org/viewtopic.php?f=18&t=33329#p279203

    suppressibleExt.initExtension(this);
}

FemMeshObject::~FemMeshObject() = default;

short FemMeshObject::mustExecute() const
{
    return 0;
}

PyObject* FemMeshObject::getPyObject()
{
    if (PythonObject.is(Py::_None())) {
        // ref counter is set to 1
        PythonObject = Py::asObject(new GeoFeaturePy(this));
    }
    return Py::new_reference_to(PythonObject);
}

void FemMeshObject::onChanged(const Property* prop)
{
    App::GeoFeature::onChanged(prop);

    // if the placement has changed apply the change to the mesh data as well
    if (prop == &this->Placement) {
        this->FemMesh.setTransform(this->Placement.getValue().toMatrix());
    }
}

// Python feature ---------------------------------------------------------

namespace App
{
/// @cond DOXERR
PROPERTY_SOURCE_TEMPLATE(Fem::FemMeshObjectPython, Fem::FemMeshObject)
template<>
const char* Fem::FemMeshObjectPython::getViewProviderName() const
{
    return "FemGui::ViewProviderFemMeshPython";
}

template<>
PyObject* Fem::FemMeshObjectPython::getPyObject()
{
    if (PythonObject.is(Py::_None())) {
        // ref counter is set to 1
        PythonObject = Py::asObject(new App::FeaturePythonPyT<App::GeoFeaturePy>(this));
    }
    return Py::new_reference_to(PythonObject);
}

// explicit template instantiation
template class FemExport FeaturePythonT<Fem::FemMeshObject>;

/// @endcond

}  // namespace App