/*
  state.h, encapsulate current camera view and animation settings

  An OpenSceneGraph viewer for pyVolution SWW files.
  copyright (C) 2004-2005 Geoscience Australia
*/


/*
  Finite State Machine for animation
      
  0 1 1 begin storing view/orientation/cull settings
  0 2 2 if exists, store current settings, commence playback of saved animation path
  0 3 0 save animation to disk

  1 1 0 stop storing settings
  1 2 2 stop storing settings and commence playback
  1 3 1 save animation, keep recording

  2 2 0 stop playback, return to saved settings
  2 1 2 no effect
  2 3 2 save animation, continue playing back

  header comprised of original command line arguments

  state comprised of:
  frame
  elapsedtime
  modelview matrix
  timestep
  cullsteep
  wireframe
  
*/

#ifndef STATE_H
#define STATE_H

#include <project.h>
#include <osg/Quat>
#include <osg/Vec3>
#include <osg/Matrix>
#include <istream>
#include <vector>
#include <fstream>
#include <iostream>


class State
{

public:

    State();
    virtual void setTimestep(unsigned int value){ _timestep = value; }
    virtual void setCulling(bool value){ _culling = value; }
    virtual void setWireframe(bool value){ _wireframe = value; }
    virtual void setMatrix(osg::Matrix value);

    virtual unsigned int getTimestep(){ return _timestep; }
    virtual osg::Matrix getMatrix();
    virtual bool getCulling(){ return _culling; }
    virtual bool getWireframe(){ return _wireframe; }

    virtual void write(std::ostream &s);
    virtual bool read(std::istream& s);

    virtual ~State();


protected:

    unsigned int _timestep;
    osg::Vec3d _position;
    osg::Quat _orientation;
    //osg::Matrix _matrix;
    bool _culling;
    bool _wireframe;
 
};




class StateList : public std::vector<State>
{

public:

   StateList();
   bool write(std::ostream& s);
   bool read(std::string filename);

   //void ~StateList();

protected:
 
};


#endif  // STATE_H