TrajectoryArtist.hpp

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/***********************************
   Copyright 2018 Ravishankar Mathur

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
***********************************/

#ifndef _OF_TRAJECTORYARTIST_
#define _OF_TRAJECTORYARTIST_

#include <OpenFrames/Export.h>
#include <OpenFrames/Trajectory.hpp>
#include <osg/Drawable>
#include <osg/ref_ptr>
#include <vector>

namespace OpenFrames
{
  class OF_EXPORT TrajectoryArtist : public osg::Drawable, public OpenFrames::TrajectorySubscriber
  {
  public:
    TrajectoryArtist();

    // Copy constructor
    TrajectoryArtist( const TrajectoryArtist &ta,
                   const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY );

    virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const TrajectoryArtist*>(obj) != NULL; }
    virtual const char* libraryName() const { return "OpenFrames"; }
    virtual const char* className() const { return "TrajectoryArtist"; }

    virtual void setTrajectory(const Trajectory *traj);
    inline const Trajectory* getTrajectory() const {return _traj.get();}

    virtual void dataCleared(Trajectory* traj) = 0;

    virtual void dataAdded(Trajectory* traj) = 0;

  protected:
    virtual ~TrajectoryArtist();

    virtual osg::BoundingBox computeBoundingBox() const;

        void RTE_glVertex(osg::Vec3d &point, osg::GLExtensions &glext) const;

    osg::ref_ptr<const Trajectory> _traj; // Trajectory to be drawn

        osg::ref_ptr<osg::Program> _program; // GLSL program
  };

}

#endif