/**
 * PANDA 3D SOFTWARE
 * Copyright (c) Carnegie Mellon University.  All rights reserved.
 *
 * All use of this software is subject to the terms of the revised BSD
 * license.  You should have received a copy of this license along
 * with this source code in a file named "LICENSE."
 *
 * @file eggAttributes.h
 * @author drose
 * @date 1999-01-16
 */

#ifndef EGGATTRIBUTES_H
#define EGGATTRIBUTES_H

#include "pandabase.h"

#include "eggMorphList.h"
#include "eggParameters.h"
#include "typedObject.h"
#include "luse.h"
#include "pnotify.h"

/**
 * The set of attributes that may be applied to vertices as well as polygons,
 * such as surface normal and color.
 *
 * This class cannot inherit from EggObject, because it causes problems at the
 * EggPolygon level with multiple appearances of the EggObject base class.
 * And making EggObject a virtual base class is just no fun.
 */
class EXPCL_PANDA_EGG EggAttributes : public MemoryBase {
PUBLISHED:
  EggAttributes();
  EggAttributes(const EggAttributes &copy);
  EggAttributes &operator = (const EggAttributes &copy);
  virtual ~EggAttributes();

  INLINE bool has_normal() const;
  INLINE const LNormald &get_normal() const;
  INLINE void set_normal(const LNormald &normal);
  INLINE void clear_normal();
  INLINE bool matches_normal(const EggAttributes &other) const;
  INLINE void copy_normal(const EggAttributes &other);

  INLINE bool has_color() const;
  INLINE LColor get_color() const;
  INLINE void set_color(const LColor &Color);
  INLINE void clear_color();
  INLINE bool matches_color(const EggAttributes &other) const;
  INLINE void copy_color(const EggAttributes &other);

  void write(std::ostream &out, int indent_level) const;
  INLINE bool sorts_less_than(const EggAttributes &other) const;
  int compare_to(const EggAttributes &other) const;

  void transform(const LMatrix4d &mat);

  EggMorphNormalList _dnormals;
  EggMorphColorList _drgbas;

private:
  enum Flags {
    F_has_normal = 0x001,
    F_has_color  = 0x002,
  };

  int _flags;
  LNormald _normal;
  LColor _color;


public:
  static TypeHandle get_class_type() {
    return _type_handle;
  }
  static void init_type() {
    register_type(_type_handle, "EggAttributes");
  }

private:
  static TypeHandle _type_handle;
};

#include "eggAttributes.I"

#endif