/***************************************************************************
 *   Copyright (c) 2015 Alexander Golubev (Fat-Zer) <fatzer2@gmail.com>    *
 *   Copyright (c) 2016 Stefan Tröger <stefantroeger@gmx.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_
#include <Inventor/actions/SoGetBoundingBoxAction.h>
#include <Inventor/nodes/SoSeparator.h>
#endif

#include <App/Document.h>
#include <App/Origin.h>
#include <App/OriginGroupExtension.h>
#include <Base/Console.h>

#include "ViewProviderOriginGroupExtension.h"
#include "Application.h"
#include "Document.h"
#include "View3DInventor.h"
#include "View3DInventorViewer.h"
#include "ViewProviderCoordinateSystem.h"
#include "ViewProviderDatum.h"


using namespace Gui;
namespace sp = std::placeholders;


EXTENSION_PROPERTY_SOURCE(Gui::ViewProviderOriginGroupExtension, Gui::ViewProviderGeoFeatureGroupExtension)

ViewProviderOriginGroupExtension::ViewProviderOriginGroupExtension()
{
    initExtensionType(ViewProviderOriginGroupExtension::getExtensionClassTypeId());
}

ViewProviderOriginGroupExtension::~ViewProviderOriginGroupExtension()
{
}

std::vector<App::DocumentObject*> ViewProviderOriginGroupExtension::constructChildren (
        const std::vector<App::DocumentObject*> &children ) const
{
    auto* obj = getExtendedViewProvider()->getObject();
    auto* group = obj ? obj->getExtensionByType<App::OriginGroupExtension>() : nullptr;
    if(!group)
        return children;

    App::DocumentObject *originObj = group->Origin.getValue();

    // Origin must be first
    if (originObj) {
        std::vector<App::DocumentObject*> rv;
        rv.push_back (originObj);
        std::copy (children.begin(), children.end(), std::back_inserter (rv));
        return rv;
    } else { // Generally shouldn't happen but must be handled in case origin is lost
        return children;
    }
}


std::vector<App::DocumentObject*> ViewProviderOriginGroupExtension::extensionClaimChildren () const {
    return constructChildren ( ViewProviderGeoFeatureGroupExtension::extensionClaimChildren () );
}

std::vector<App::DocumentObject*> ViewProviderOriginGroupExtension::extensionClaimChildren3D () const {
    return constructChildren ( ViewProviderGeoFeatureGroupExtension::extensionClaimChildren3D () );
}


namespace Gui {
EXTENSION_PROPERTY_SOURCE_TEMPLATE(Gui::ViewProviderOriginGroupExtensionPython, Gui::ViewProviderOriginGroupExtension)

// explicit template instantiation
template class GuiExport ViewProviderExtensionPythonT<ViewProviderOriginGroupExtension>;
}