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

   1 /*
   2 ** License Applicability. Except to the extent portions of this file are
   3 ** made subject to an alternative license as permitted in the SGI Free
   4 ** Software License B, Version 1.1 (the "License"), the contents of this
   5 ** file are subject only to the provisions of the License. You may not use
   6 ** this file except in compliance with the License. You may obtain a copy
   7 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
   8 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
   9 **
  10 ** http://oss.sgi.com/projects/FreeB
  11 **
  12 ** Note that, as provided in the License, the Software is distributed on an
  13 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
  14 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
  15 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
  16 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
  17 **
  18 ** Original Code. The Original Code is: OpenGL Sample Implementation,
  19 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
  20 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
  21 ** Copyright in any portions created by third parties is as indicated
  22 ** elsewhere herein. All Rights Reserved.
  23 **
  24 ** Additional Notice Provisions: The application programming interfaces
  25 ** established by SGI in conjunction with the Original Code are The
  26 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
  27 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
  28 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
  29 ** Window System(R) (Version 1.3), released October 19, 1998. This software
  30 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
  31 ** published by SGI, but has not been independently verified as being
  32 ** compliant with the OpenGL(R) version 1.2.1 Specification.
  33 */
  34
  35 /*
  36  * gridtrimvertex.h
  37  *
  38  */
  39
  40 #ifndef __glugridtrimvertex_h_
  41 #define __glugridtrimvertex_h_
  42
  43 #include "mystdlib.h"
  44 #include "bufpool.h"
  45 #include "trimvertex.h"
  46 #include "gridvertex.h"
  47
  48 class GridTrimVertex : public PooledObj
  49 {
  50 private:
  51     TrimVertex  dummyt;
  52     GridVertex  dummyg;
  53 public:
  54                         GridTrimVertex() { g = 0; t = 0; }
  55     TrimVertex  *t;
  56     GridVertex  *g;
  57
  58     inline void         set( long, long );
  59     inline void         set( REAL, REAL );
  60     inline void         set( TrimVertex * );
  61     inline void         clear( void ) { t = 0; g = 0; };
  62     inline int          isGridVert() { return g ? 1 : 0 ; }
  63     inline int          isTrimVert() { return t ? 1 : 0 ; }
  64     inline void         output();
  65 };
  66
  67 inline void
  68 GridTrimVertex::set( long x, long y )
  69 {
  70     g = &dummyg;
  71     dummyg.gparam[0] = x;
  72     dummyg.gparam[1] = y;
  73 }
  74
  75 inline void
  76 GridTrimVertex::set( REAL x, REAL y )
  77 {
  78     g = 0;
  79     t = &dummyt;
  80     dummyt.param[0] = x;
  81     dummyt.param[1] = y;
  82     dummyt.nuid = 0;
  83 }
  84
  85 inline void
  86 GridTrimVertex::set( TrimVertex *v )
  87 {
  88     g = 0;
  89     t = v;
  90 }
  91
  92 typedef GridTrimVertex *GridTrimVertex_p;
  93 #endif /* __glugridtrimvertex_h_ */