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MeshFeature.cpp
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MeshFeature.cpp
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/***************************************************************************
* Copyright (c) 2004 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* 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 "PreCompiled.h"
#ifndef _PreComp_
#endif
#include <Base/Console.h>
#include <Base/Exception.h>
#include <Base/Reader.h>
#include <Base/Writer.h>
#include <App/FeaturePythonPyImp.h>
#include "Core/MeshIO.h"
#include "MeshFeature.h"
#include "MeshFeaturePy.h"
using namespace Mesh;
//===========================================================================
// Feature
//===========================================================================
PROPERTY_SOURCE(Mesh::Feature, App::GeoFeature)
Feature::Feature()
{
ADD_PROPERTY_TYPE(Mesh,(MeshObject()),0,App::Prop_Output,"The mesh kernel");
}
Feature::~Feature()
{
}
App::DocumentObjectExecReturn *Feature::execute(void)
{
this->Mesh.touch();
return App::DocumentObject::StdReturn;
}
PyObject *Feature::getPyObject(void)
{
if(PythonObject.is(Py::_None())){
// ref counter is set to 1
PythonObject = Py::Object(new MeshFeaturePy(this),true);
}
return Py::new_reference_to(PythonObject);
}
void Feature::onChanged(const App::Property* prop)
{
// if the placement has changed apply the change to the mesh data as well
if (prop == &this->Placement) {
MeshObject& mesh = const_cast<MeshObject&>(this->Mesh.getValue());
mesh.setTransform(this->Placement.getValue().toMatrix());
}
// if the mesh data has changed check and adjust the transformation as well
else if (prop == &this->Mesh) {
Base::Placement p;
p.fromMatrix(this->Mesh.getValue().getTransform());
if (p != this->Placement.getValue())
this->Placement.setValue(p);
}
// Note: If the Mesh property has changed the property and this object are marked as 'touched'
// but no recomputation of this objects needs to be done because the Mesh property is regarded
// as output of a previous recomputation The mustExecute() method returns 0 in that case.
// However, objects that reference this object the Mesh property can be an input parameter.
// As this object and the property are touched such objects can check this and return a value 1
// (or -1) in their mustExecute() to be recomputed the next time the document recomputes itself.
DocumentObject::onChanged(prop);
}
// ---------------------------------------------------------
namespace App {
/// @cond DOXERR
PROPERTY_SOURCE_TEMPLATE(Mesh::FeatureCustom, Mesh::Feature)
/// @endcond
// explicit template instantiation
template class MeshExport FeatureCustomT<Mesh::Feature>;
}
// ---------------------------------------------------------
namespace App {
/// @cond DOXERR
PROPERTY_SOURCE_TEMPLATE(Mesh::FeaturePython, Mesh::Feature)
template<> const char* Mesh::FeaturePython::getViewProviderName(void) const {
return "MeshGui::ViewProviderPython";
}
template<> PyObject* Mesh::FeaturePython::getPyObject(void) {
if (PythonObject.is(Py::_None())) {
// ref counter is set to 1
PythonObject = Py::Object(new FeaturePythonPyT<Mesh::MeshFeaturePy>(this),true);
}
return Py::new_reference_to(PythonObject);
}
/// @endcond
// explicit template instantiation
template class MeshExport FeaturePythonT<Mesh::Feature>;
}