// Filename: eggComponentData.h
// Created by:  drose (26Feb01)
//
////////////////////////////////////////////////////////////////////
//
// PANDA 3D SOFTWARE
// Copyright (c) 2001 - 2004, Disney Enterprises, Inc.  All rights reserved
//
// All use of this software is subject to the terms of the Panda 3d
// Software license.  You should have received a copy of this license
// along with this source code; you will also find a current copy of
// the license at http://etc.cmu.edu/panda3d/docs/license/ .
//
// To contact the maintainers of this program write to
// panda3d-general@lists.sourceforge.net .
//
////////////////////////////////////////////////////////////////////

#ifndef EGGCOMPONENTDATA_H
#define EGGCOMPONENTDATA_H

#include "pandatoolbase.h"

#include "eggObject.h"
#include "namable.h"
#include "pset.h"

class EggCharacterCollection;
class EggCharacterData;
class EggBackPointer;
class NameUniquifier;

////////////////////////////////////////////////////////////////////
//       Class : EggComponentData
// Description : This is the base class of both EggJointData and
//               EggSliderData.  It represents a single component of a
//               character, either a joint or a slider, along with
//               back pointers to the references to this component in
//               all model and animation egg files read.
////////////////////////////////////////////////////////////////////
class EggComponentData : public EggObject, public Namable {
public:
  EggComponentData(EggCharacterCollection *collection,
                   EggCharacterData *char_data);
  virtual ~EggComponentData();

  void add_name(const string &name, NameUniquifier &uniquifier);
  bool matches_name(const string &name) const;

  int get_num_frames(int model_index) const;
  void extend_to(int model_index, int num_frames) const;

  virtual void add_back_pointer(int model_index, EggObject *egg_object)=0;
  virtual void write(ostream &out, int indent_level = 0) const=0;

  INLINE int get_num_models() const;
  INLINE bool has_model(int model_index) const;
  INLINE EggBackPointer *get_model(int model_index) const;
  void set_model(int model_index, EggBackPointer *back);

protected:

  // This points back to all the egg structures that reference this
  // particular table or slider.
  typedef pvector<EggBackPointer *> BackPointers;
  BackPointers _back_pointers;

  typedef pset<string> Names;
  Names _names;

  EggCharacterCollection *_collection;
  EggCharacterData *_char_data;


public:
  static TypeHandle get_class_type() {
    return _type_handle;
  }
  static void init_type() {
    EggObject::init_type();
    register_type(_type_handle, "EggComponentData",
                  EggObject::get_class_type());
  }
  virtual TypeHandle get_type() const {
    return get_class_type();
  }
  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}

private:
  static TypeHandle _type_handle;
};

#include "eggComponentData.I"

#endif