/**************************************************************************\
 *
 *  This file is part of the Coin 3D visualization library.
 *  Copyright (C) 1998-2002 by Systems in Motion. All rights reserved.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  version 2.1 as published by the Free Software Foundation. See the
 *  file LICENSE.LGPL at the root directory of the distribution for
 *  more details.
 *
 *  If you want to use Coin for applications not compatible with the
 *  LGPL, please contact SIM to acquire a Professional Edition license.
 *
 *  Systems in Motion, Prof Brochs gate 6, 7030 Trondheim, NORWAY
 *  http://www.sim.no support@sim.no Voice: +47 22114160 Fax: +47 22207097
 *
\**************************************************************************/

#ifndef COIN_SOLINESET_H
#define COIN_SOLINESET_H

#include <Inventor/nodes/SoSubNode.h>
#include <Inventor/nodes/SoNonIndexedShape.h>
#include <Inventor/fields/SoMFInt32.h>


class COIN_DLL_API SoLineSet : public SoNonIndexedShape {
  typedef SoNonIndexedShape inherited;

  SO_NODE_HEADER(SoLineSet);

public:
  static void initClass(void);
  SoLineSet(void);

public:
  SoMFInt32 numVertices;

  virtual void GLRender(SoGLRenderAction * action);
  virtual void getBoundingBox(SoGetBoundingBoxAction * action);
  virtual void getPrimitiveCount(SoGetPrimitiveCountAction * action);

protected:
  virtual ~SoLineSet();

  virtual void generatePrimitives(SoAction * action);
  virtual void computeBBox(SoAction * action, SbBox3f & box, SbVec3f & center);

private:
  virtual SbBool generateDefaultNormals(SoState *, SoNormalCache * nc);
  virtual SbBool generateDefaultNormals(SoState * state,
                                        SoNormalBundle * bundle);

  enum Binding {
    OVERALL = 0,
    PER_LINE,
    PER_SEGMENT,
    PER_VERTEX
  };

  Binding findNormalBinding(SoState * const state) const;
  Binding findMaterialBinding(SoState * const state) const;
};

#endif // !COIN_SOLINESET_H
