/**
 * 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 accumulatedAttribs.h
 * @author drose
 * @date 2003-01-30
 */

#ifndef ACCUMULATEDATTRIBS_H
#define ACCUMULATEDATTRIBS_H

#include "pandabase.h"
#include "transformState.h"
#include "renderAttrib.h"
#include "renderState.h"
#include "pointerTo.h"

class PandaNode;

/**
 * This class is used by the SceneGraphReducer to maintain and accumulate the
 * set of attributes we have encountered on each node that might eventually be
 * applied to the vertices at the leaves.
 */
class EXPCL_PANDA_PGRAPH AccumulatedAttribs {
public:
  AccumulatedAttribs();
  AccumulatedAttribs(const AccumulatedAttribs &copy);
  void operator = (const AccumulatedAttribs &copy);

  void write(std::ostream &out, int attrib_types, int indent_level) const;

  void collect(PandaNode *node, int attrib_types);
  CPT(RenderState) collect(const RenderState *state, int attrib_types);
  void apply_to_node(PandaNode *node, int attrib_types);

  CPT(TransformState) _transform;
  CPT(RenderAttrib) _color;
  int _color_override;
  CPT(RenderAttrib) _color_scale;
  int _color_scale_override;
  CPT(RenderAttrib) _tex_matrix;
  int _tex_matrix_override;
  CPT(RenderAttrib) _texture;
  int _texture_override;
  CPT(RenderAttrib) _clip_plane;
  int _clip_plane_override;
  CPT(RenderAttrib) _cull_face;
  int _cull_face_override;
  CPT(RenderState) _other;
};

#include "accumulatedAttribs.I"

#endif