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sglLODStateNode.hpp

/*****************************************************************************
 * SGL: A Scene Graph Library
 *
 * Copyright (C) 1997-2001  Scott McMillan   All Rights Reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *****************************************************************************
 *     File: sglStateNode.hpp
 *  Created: 3 February 2000
 *  Summary: use a stateNode mask to select/deselect the entire subtree
 *****************************************************************************/

#ifndef __SGL_LODSTATENODE_HPP
#define __SGL_LODSTATENODE_HPP

#include <sgl.h>
#include <sglGroup.hpp>
#include <sglLODState.hpp>

//----------------------------------------------------------------------------

class SGL_DLL_API sglLODStateNode : public sglGroup
{
public:
   sglLODStateNode();
   virtual ~sglLODStateNode();

   void setRangeScale(float val) { m_lod_state.setRangeScale(val); }

   float getRangeScale() const   { return m_lod_state.getRangeScale(); }

   void setRangeOffset(float val) { m_lod_state.setRangeOffset(val); }

   float getRangeOffset() const   { return m_lod_state.getRangeOffset(); }

   // see sglNode::intersect(f) for details.
   virtual sglBound::IntersectResultEnum intersect(
      sglIntersectf &isector) const;

   // see sglNode::intersect(d) for details.
   virtual sglBound::IntersectResultEnum intersect(
      sglIntersectd &isector) const;

   // see sglNode::pick(f) for details.
   virtual void pick(sglPickf &pick_state, unsigned int cull_flags) const;

   // see sglNode::pick(d) for details.
   virtual void pick(sglPickd &pick_state, unsigned int cull_flags) const;

   // See sglNode::clone() for details.
   virtual sglNode *clone(unsigned int mode) const;

   // See sglObject::printInfo() for details.
   virtual void printInfo(ostream &ostrm, const char *indent_string) const;

protected:
   // See sglNode::cull(f) for details
   virtual void cull(sglCull<float> &trav_state,
                     unsigned int cull_flags) const;

   // See sglNode::cull(d) for details
   virtual void cull(sglCull<double> &trav_state,
                     unsigned int cull_flags) const;

   void copyTo(sglLODStateNode *dst, unsigned int mode) const;

private: // not implemented
   sglLODStateNode(const sglLODStateNode &);
   sglLODStateNode &operator=(const sglLODStateNode &);

protected:
   sglLODState m_lod_state;
};

#endif

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