Model.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_MODEL_
#define _OF_MODEL_

#include <OpenFrames/Export.h>
#include <OpenFrames/ReferenceFrame.hpp>
#include <osg/Node>
#include <osg/ref_ptr>
#include <osgManipulator/TrackballDragger>
#include <string>

namespace OpenFrames
{
  class OF_EXPORT Model : public ReferenceFrame
  {
  public:
    Model( const std::string &name );
    Model( const std::string &name, const osg::Vec3 &color );
    Model( const std::string &name, const osg::Vec4 &color );
    Model( const std::string &name , float r, float g, float b, float a = 1.0 );
    
    virtual osg::Group* getGroup() const;
    
    bool setModel( const std::string& filename, bool force_reload = false );
    osg::Node* getModel() const { return _model.get(); }
    osg::Geode* getExtras() const { return _extras.get(); }
    
    bool shareModel( const Model* otherModel );
    
    void setModelPosition( const double &x, const double &y, const double &z );

    void setModelPosition( const osg::Vec3d &pos )
    { _modelXform->setPosition(pos); }
    
    void getModelPosition( double &x, double &y, double &z ) const
    { _modelXform->getPosition(x, y, z); }

    void getModelPosition( osg::Vec3d &pos ) const
    { _modelXform->getPosition(pos); }

    void setModelAttitude( const osg::Quat &att )
    { _modelXform->setAttitude(att); }

    void getModelAttitude( osg::Quat &att ) const
    { _modelXform->getAttitude(att); }
    
    void setModelScale( const double &sx, const double &sy, const double &sz);
    
    void getModelScale( double &sx, double &sy, double &sz ) const
    {
      _modelXform->getScale(sx, sy, sz);
    }
    
    void setModelPivot(const double &px, const double &py, const double &pz);
    
    void getModelPivot( double &px, double &py, double &pz ) const
    {
      _modelXform->getPivot(px, py, pz);
    }
    
    const FrameTransform* getModelTransform() const { return _modelXform; }
    
    void addDraggerCallback(osgManipulator::DraggerCallback* callback);
    
    virtual const osg::BoundingSphere& getBound() const;
    
  protected:
    virtual ~Model();
    
    void init();
    void repositionAxes();
    
    osg::ref_ptr<osg::Group> _group;
    
    osg::ref_ptr<osg::Node> _model;
    
    osg::ref_ptr<FrameTransform> _modelXform;
    
    osg::ref_ptr<osg::Geode> _extras;
    
    osg::ref_ptr<osgManipulator::TrackballDragger> _dragger;
    osg::ref_ptr<osg::MatrixTransform> _draggerXform;
  };


  class OF_EXPORT ModelDraggerTransformCallback : public osgManipulator::DraggerTransformCallback
  {
  public:
    ModelDraggerTransformCallback(FrameTransform* modelxform, osg::MatrixTransform* draggerxform);
    
    virtual bool receive(const osgManipulator::MotionCommand& command);
    
  protected:
    osg::observer_ptr<FrameTransform> _modelXform;
  };
  
} // !namespace OpenFrames

#endif // !define _OF_MODEL_