sglDiscriminator.hpp Source File

00001 /*****************************************************************************
00002  * SGL: A Scene Graph Library
00003  *
00004  * Copyright (C) 1997-2001  Scott McMillan   All Rights Reserved.
00005  *
00006  * This library is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Library General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2 of the License, or (at your option) any later version.
00010  *
00011  * This library is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Library General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Library General Public
00017  * License along with this library; if not, write to the Free
00018  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00019  *****************************************************************************
00020  *     File: sglDiscriminator.hpp
00021  *  Created: 21 February 1999
00022  *  Summary: use a discriminator mask to select/deselect the entire subtree
00023  *****************************************************************************/
00024 
00025 #ifndef __SGL_DISCRIMINATOR_HPP
00026 #define __SGL_DISCRIMINATOR_HPP
00027 
00028 #include <sgl.h>
00029 #include <sglGroup.hpp>
00030 
00031 //----------------------------------------------------------------------------
00032 
00056 class SGL_DLL_API sglDiscriminator : public sglGroup
00057 {
00058 public:
00060    sglDiscriminator();
00062    virtual ~sglDiscriminator();
00063 
00067    void setMask(unsigned int mask) { m_mask = mask; }
00068 
00072    unsigned int getMask() const { return m_mask; }
00073 
00074    // see sglNode::intersect(f) for details.
00075    virtual sglBound::IntersectResultEnum intersect(
00076       sglIntersectf &isector) const;
00077 
00078    // see sglNode::intersect(d) for details.
00079    virtual sglBound::IntersectResultEnum intersect(
00080       sglIntersectd &isector) const;
00081 
00082    // see sglNode::pick(f) for details.
00083    virtual void pick(sglPickf &pick_state, unsigned int cull_flags) const;
00084 
00085    // see sglNode::pick(d) for details.
00086    virtual void pick(sglPickd &pick_state, unsigned int cull_flags) const;
00087 
00088    // See sglNode::clone() for details.
00089    virtual sglNode *clone(unsigned int mode) const;
00090 
00091    // See sglObject::printInfo() for details.
00092    virtual void printInfo(ostream &ostrm, const char *indent_string) const;
00093 
00094 protected:
00095    // compute the bounding sphere NOT YET IMPLEMENTED (using sglGroup)
00096    //virtual void computeBound();
00097 
00098    // sglNode::cull(f) for details
00099    virtual void cull(sglCull<float> &trav_state,
00100                      unsigned int cull_flags) const;
00101 
00102    // sglNode::cull(d) for details
00103    virtual void cull(sglCull<double> &trav_state,
00104                      unsigned int cull_flags) const;
00105 
00106    void copyTo(sglDiscriminator *dst, unsigned int mode) const;
00107 
00108 private:  // not implemented
00109    sglDiscriminator(const sglDiscriminator &);
00110    sglDiscriminator &operator=(const sglDiscriminator &);
00111 
00112 protected:
00113    unsigned int m_mask;
00114 };
00115 
00116 #endif