#ifndef __OBJ_EXPORTER_H
#define __OBJ_EXPORTER_H


#include <string>
using std::string;

#include <iostream>
#include <fstream>

#include "Exporter.h"
#include "Containers.h"
#include "VssRay.h"
#include "ViewCell.h"

namespace GtpVisibilityPreprocessor {

class SceneGraphNode;
class Mesh;
class Intersectable;
class MeshInstance;
class Polygon3;
class ViewCell;
class BspTree;
class VspBspTree;
class BspNode;
class Beam;
class OspTree;



class ObjExporter : public Exporter {

  std::ofstream stream;
  int vertexIndex;
  
public:

  ObjExporter(const string filename);

  ~ObjExporter();

  bool
  ExportKdTree(const KdTree &tree, const bool exportGeometry = false) {
	return false;
  }

  bool
  ExportVssTree(const VssTree &tree) {
	return false;
  }

  bool
  ExportVssTree2(const VssTree &tree,
				 const Vector3 direction
				 ) {
	return false;
  }
	

  virtual bool
  ExportRssTree2(const RssTree &tree,
				 const Vector3 direction
				 ) {
	return false;
  }

  bool ExportBspTree(const BspTree &tree) {
	return false;
  }

  bool
  ExportScene(SceneGraphNode *root)
  {
    ExportSceneNode(root);
    return true;
  }
  
  virtual void
  ExportPolygon(Polygon3 *poly);
	

  virtual void
  ExportPolygons(const PolygonContainer &polys) {}

  virtual bool
  ExportBox(const AxisAlignedBox3 &box) { return false; }

  virtual void
  ExportMesh(Mesh *mesh);

  virtual void
  ExportViewCell(ViewCell *viewCell) {}

  bool
  ExportRays(const RayContainer &rays,
			 const float length=1000,
			 const RgbColor &color = RgbColor(1,1,1)) { return false; }
  bool
  ExportRays(const VssRayContainer &rays,
	const RgbColor &color = RgbColor(1,1,1)) { return false; }
			  
  
  virtual bool
  ExportRaySets(const vector<VssRayContainer> &rays,
				const RgbColor &color) { return false; }

  virtual void
  ExportBspSplitPlanes(const BspTree &tree) {}

  virtual void
  ExportBspSplits(const BspTree &tree, const bool exportDepth) {}

  virtual void
  ExportLeavesGeometry(const BspTree &tree, const vector<BspLeaf *> &leaves) {}

  virtual void
  ExportBspLeaves(const BspTree &tree, const int maxPvs = 0) {}


  virtual void
  ExportBspSplits(const VspBspTree &tree, const bool exportDepth) {}

  virtual void ExportBeam(const Beam &beam, const AxisAlignedBox3 &box) {}

protected:
  
  virtual void
  ExportSceneNode(SceneGraphNode *node);
  
  virtual void ExportViewpoint(const Vector3 &point, const Vector3 &direction) {}
  
};

}

#endif