colorAttrib.h

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/**
 * 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 colorAttrib.h
 * @author drose
 * @date 2002-02-22
 */

#ifndef COLORATTRIB_H
#define COLORATTRIB_H

#include "pandabase.h"

#include "renderAttrib.h"
#include "luse.h"

class FactoryParams;

/**
 * Indicates what color should be applied to renderable geometry.
 */
class EXPCL_PANDA_PGRAPH ColorAttrib : public RenderAttrib {
PUBLISHED:
  enum Type {
    T_vertex, T_flat, T_off
  };

private:
  INLINE ColorAttrib(Type type, const LColor &color);

PUBLISHED:
  static CPT(RenderAttrib) make_vertex();
  static CPT(RenderAttrib) make_flat(const LColor &color);
  static CPT(RenderAttrib) make_off();
  static CPT(RenderAttrib) make_default();

  INLINE Type get_color_type() const;
  INLINE const LColor &get_color() const;

PUBLISHED:
  MAKE_PROPERTY(color_type, get_color_type);
  MAKE_PROPERTY(color, get_color);

public:
  virtual void output(std::ostream &out) const;

protected:
  virtual int compare_to_impl(const RenderAttrib *other) const;
  virtual size_t get_hash_impl() const;

private:
  void quantize_color();

private:
  Type _type;
  LColor _color;
  static CPT(RenderAttrib) _off;
  static CPT(RenderAttrib) _vertex;

PUBLISHED:
  static int get_class_slot() {
    return _attrib_slot;
  }
  virtual int get_slot() const {
    return get_class_slot();
  }
  MAKE_PROPERTY(class_slot, get_class_slot);

public:
  static void register_with_read_factory();
  virtual void write_datagram(BamWriter *manager, Datagram &dg);

protected:
  static TypedWritable *make_from_bam(const FactoryParams &params);
  void fillin(DatagramIterator &scan, BamReader *manager);

public:
  static TypeHandle get_class_type() {
    return _type_handle;
  }
  static void init_type() {
    RenderAttrib::init_type();
    register_type(_type_handle, "ColorAttrib",
                  RenderAttrib::get_class_type());
    _attrib_slot = register_slot(_type_handle, 100,
      new ColorAttrib(T_vertex, LColor::zero()));
  }
  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;
  static int _attrib_slot;
};

#include "colorAttrib.I"

#endif