src/glu/sgi/libnurbs/internals/arcsorter.h

   1 /*
   2  * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
   3  * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice including the dates of first publication and
  13  * either this permission notice or a reference to
  14  * http://oss.sgi.com/projects/FreeB/
  15  * shall be included in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20  * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  21  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  22  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Except as contained in this notice, the name of Silicon Graphics, Inc.
  26  * shall not be used in advertising or otherwise to promote the sale, use or
  27  * other dealings in this Software without prior written authorization from
  28  * Silicon Graphics, Inc.
  29  */
  30
  31 /*
  32  * arcsorter.h
  33  *
  34  */
  35
  36 #ifndef __gluarcsorter_h_
  37 #define __gluarcsorter_h_
  38
  39 #include "sorter.h"
  40 #include "arcsorter.h"
  41
  42 class Arc;
  43 class Subdivider;
  44
  45 class ArcSorter : private Sorter {
  46 public:
  47                         ArcSorter(Subdivider &);
  48     void                qsort( Arc **a, int n );
  49 protected:
  50     virtual int         qscmp( char *, char * );
  51     Subdivider&         subdivider;
  52 private:
  53     void                qsexc( char *i, char *j );      // i<-j, j<-i
  54     void                qstexc( char *i, char *j, char *k ); // i<-k, k<-j, j<-i
  55 };
  56
  57
  58 class ArcSdirSorter : public ArcSorter {
  59 public:
  60                         ArcSdirSorter( Subdivider & );
  61 private:
  62     int                 qscmp( char *, char * );
  63 };
  64
  65
  66 class ArcTdirSorter : public ArcSorter {
  67 public:
  68                         ArcTdirSorter( Subdivider & );
  69 private:
  70     int                 qscmp( char *, char * );
  71 };
  72
  73 #endif /* __gluarcsorter_h_ */