FreeCAD

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/***************************************************************************
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 *   Copyright (c) 2016 Stefan Tröger <stefantroeger@gmx.net>              *
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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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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <cassert>
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# include <algorithm>
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#endif
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#include "ViewProviderExtension.h"
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#include "ViewProviderExtensionPy.h"
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#include "ViewProviderExtensionPython.h"
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#include "ViewProviderDocumentObject.h"
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using namespace Gui;
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EXTENSION_PROPERTY_SOURCE(Gui::ViewProviderExtension, App::Extension)
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ViewProviderExtension::ViewProviderExtension()
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{
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    initExtensionType(Gui::ViewProviderExtension::getExtensionClassTypeId());
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}
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ViewProviderExtension::~ViewProviderExtension() = default;
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const ViewProviderDocumentObject* ViewProviderExtension::getExtendedViewProvider() const{
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    assert(getExtendedContainer()->isDerivedFrom(ViewProviderDocumentObject::getClassTypeId()));
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    return static_cast<const ViewProviderDocumentObject*>(getExtendedContainer());
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}
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ViewProviderDocumentObject* ViewProviderExtension::getExtendedViewProvider() {
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    assert(getExtendedContainer()->isDerivedFrom(ViewProviderDocumentObject::getClassTypeId()));
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    return static_cast<ViewProviderDocumentObject*>(getExtendedContainer());
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}
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void ViewProviderExtension::extensionUpdateData(const App::Property*) {
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}
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PyObject* ViewProviderExtension::getExtensionPyObject() {
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    if (ExtensionPythonObject.is(Py::_None())){
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        // ref counter is set to 1
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        auto ext = new ViewProviderExtensionPy(this);
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        ExtensionPythonObject = Py::asObject(ext);
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    }
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    return Py::new_reference_to(ExtensionPythonObject);
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}
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namespace Gui {
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EXTENSION_PROPERTY_SOURCE_TEMPLATE(Gui::ViewProviderExtensionPython, Gui::ViewProviderExtension)
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// explicit template instantiation
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template class GuiExport ViewProviderExtensionPythonT<ViewProviderExtension>;
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}
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