agg/inc/agg_vcgen_markers_term.h

   1 //----------------------------------------------------------------------------
   2 // Anti-Grain Geometry - Version 2.3
   3 // Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
   4 //
   5 // Permission to copy, use, modify, sell and distribute this software
   6 // is granted provided this copyright notice appears in all copies.
   7 // This software is provided "as is" without express or implied
   8 // warranty, and with no claim as to its suitability for any purpose.
   9 //
  10 //----------------------------------------------------------------------------
  11 // Contact: mcseem@antigrain.com
  12 //          mcseemagg@yahoo.com
  13 //          http://www.antigrain.com
  14 //----------------------------------------------------------------------------
  15
  16 #ifndef AGG_VCGEN_MARKERS_TERM_INCLUDED
  17 #define AGG_VCGEN_MARKERS_TERM_INCLUDED
  18
  19 #include "agg_basics.h"
  20 #include "agg_vertex_sequence.h"
  21 #include "agg_vertex_iterator.h"
  22
  23 namespace agg
  24 {
  25
  26     //======================================================vcgen_markers_term
  27     //
  28     // See Implemantation agg_vcgen_markers_term.cpp
  29     // Terminal markers generator (arrowhead/arrowtail)
  30     //
  31     //------------------------------------------------------------------------
  32     class vcgen_markers_term
  33     {
  34     public:
  35         vcgen_markers_term() : m_curr_id(0), m_curr_idx(0) {}
  36
  37         // Vertex Generator Interface
  38         void remove_all();
  39         void add_vertex(double x, double y, unsigned cmd);
  40
  41         // Vertex Source Interface
  42         void rewind(unsigned id);
  43         unsigned vertex(double* x, double* y);
  44
  45         typedef vcgen_markers_term source_type;
  46         typedef vertex_iterator<source_type> iterator;
  47         iterator begin(unsigned id) { return iterator(*this, id); }
  48         iterator end() { return iterator(path_cmd_stop); }
  49
  50     private:
  51         vcgen_markers_term(const vcgen_markers_term&);
  52         const vcgen_markers_term& operator = (const vcgen_markers_term&);
  53
  54         struct coord_type
  55         {
  56             double x, y;
  57
  58             coord_type() {}
  59             coord_type(double x_, double y_) : x(x_), y(y_) {}
  60         };
  61
  62         typedef pod_deque<coord_type, 6> coord_storage;
  63
  64         coord_storage m_markers;
  65         unsigned      m_curr_id;
  66         unsigned      m_curr_idx;
  67     };
  68
  69
  70 }
  71
  72 #endif