polyidx.h Source File

00001 /*
00002     Copyright (C) 1998 by Jorrit Tyberghein
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __CS_POLYIDX_H__
00020 #define __CS_POLYIDX_H__
00021 
00029 class csPolyIndexed
00030 {
00031 protected:
00033   int* vertices_idx;
00035   int num_vertices;
00037   int max_vertices;
00038 
00039 public:
00043   csPolyIndexed (int start_size = 10);
00044 
00046   csPolyIndexed (csPolyIndexed& copy);
00047 
00049   virtual ~csPolyIndexed ();
00050 
00054   void MakeEmpty ();
00055 
00059   int GetVertexCount () const { return num_vertices; }
00060 
00064   int* GetVertexIndices () { return vertices_idx; }
00065 
00069   const int* GetVertexIndices () const { return vertices_idx; }
00070 
00074   int GetVertex (int i)  const
00075   {
00076     if (i<0 || i>=num_vertices) return -1;
00077     return vertices_idx[i];
00078   }
00079 
00083   int& operator[] (int i)
00084   {
00085     CS_ASSERT (i >= 0 && i < num_vertices);
00086     return vertices_idx[i];
00087   }
00088 
00092   int& operator[] (int i) const
00093   {
00094     CS_ASSERT (i >= 0 && i < num_vertices);
00095     return vertices_idx[i];
00096   }
00097 
00101   void MakeRoom (int new_max);
00102 
00107   int AddVertex (int i);
00108 };
00109 
00110 #endif // __CS_POLYIDX_H__