// OiStream.h

#ifndef OiStream_H
#define OiStream_H

// Implement VisStream using OpenInventor.
//

#include <vector>
#include <map>
#include "trfobj/VisStream.h"
#include "ptr/Ptr.h"
#include "ptr/DeletePolicy.h"
#include "ptr/SharedDeletePolicy.h"

using std::vector;
using std::map;
using std::less;

class SoSeparator;

class OiStream : public virtual VisStream {

private:  // typedefs

  // List of child streams.
  typedef Ptr<OiStream,DeletePolicy> OiStreamPtr;
  typedef vector<OiStreamPtr> Streams;

private:  // attributes

  // Root of the open inventor scene.
  SoSeparator* _proot;

  // List of child streams.
  Streams _children;

protected:  // methods

  // Return the open inventor root separator.
  SoSeparator* get_root() { return _proot; }

public:  // methods

  // Constructor.
  OiStream();

  // Destructor.
  ~OiStream();

  // Add a substream and return a reference to it.
  virtual VisStream& add_child();

  // Set color using RGB model.
  // Values should all be in range (0,1).
  // Color applies to following shapes until overridden.
  virtual void set_color(const VisColor& col);

  // Write contents to a file.
  // This file can be processed by an open inventor viewer.
  virtual void write(string filename);

};

#endif