//##################################################################################################
//
//   Custom Visualization Core library
//   Copyright (C) 2011-2012 Ceetron AS
//    
//   This library is free software: you can redistribute it and/or modify 
//   it under the terms of the GNU General Public License as published by 
//   the Free Software Foundation, either version 3 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 General Public License at <<http://www.gnu.org/licenses/gpl.html>> 
//   for more details. 
//
//##################################################################################################

#pragma once

#include "cafNavigationPolicy.h"
#include "cvfManipulatorTrackball.h"

namespace caf
{

class CadNavigation : public NavigationPolicy
{
protected:
    // General navigation policy reimplememtation
    virtual void        init();
    virtual bool        handleInputEvent(QInputEvent* inputEvent);
    virtual void        setView( const cvf::Vec3d& alongDirection, const cvf::Vec3d& upDirection );
    virtual cvf::Vec3d  pointOfInterest(); 
    virtual void        setPointOfInterest(cvf::Vec3d poi);


    // Cad navigation specific
    void            initializeRotationCenter();

    cvf::ref<cvf::ManipulatorTrackball> 
                    m_trackball;
    bool            m_isRotCenterInitialized; 
    bool            m_isRotating;
    cvf::Vec3d      m_pointOfInterest;
};

} // End namespace caf
