OpenSceneGraph/applications/present3D/ShowEventHandler.cpp

/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
 *
 * This library is open source and may be redistributed and/or modified under
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 *
 * 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
 * OpenSceneGraph Public License for more details.
*/

#include "ShowEventHandler.h"

#include <osgViewer/Viewer>
#include <osg/Notify>

using namespace p3d;

ShowEventHandler::ShowEventHandler()
{
}

bool ShowEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& /*aa*/, osg::Object* object, osg::NodeVisitor* /*nv*/)
{
    switch(ea.getEventType())
    {
        case(osgGA::GUIEventAdapter::KEYUP):
        {
            osg::notify(osg::INFO)<<"ShowEventHandler KEYUP "<<(int)ea.getKey()<<std::endl;
            if (ea.getKey()>=osgGA::GUIEventAdapter::KEY_F1 &&
                ea.getKey()<=osgGA::GUIEventAdapter::KEY_F8)
            {
                unsigned int child = ea.getKey()-osgGA::GUIEventAdapter::KEY_F1;
                osg::notify(osg::INFO)<<"   Select "<<child<<std::endl;
                osg::Switch* showSwitch = dynamic_cast<osg::Switch*>(object);
                if (showSwitch)
                {
                    if (child<showSwitch->getNumChildren())
                    {
                        osg::notify(osg::INFO)<<"   Switched "<<child<<std::endl;
                        showSwitch->setSingleChildOn(child);
                        return true;
                    }
                }
            }
            break;
        }
        default:
            break;
    }
    return false;
}

void ShowEventHandler::getUsage(osg::ApplicationUsage& /*usage*/) const
{
}