1 2 //---------------------------------------------------------------------------- 3 // Anti-Grain Geometry - Version 2.3 4 // Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com) 5 // 6 // Permission to copy, use, modify, sell and distribute this software 7 // is granted provided this copyright notice appears in all copies. 8 // This software is provided "as is" without express or implied 9 // warranty, and with no claim as to its suitability for any purpose. 10 // 11 //---------------------------------------------------------------------------- 12 // Contact: mcseem (at) antigrain.com 13 // mcseemagg (at) yahoo.com 14 // http://www.antigrain.com 15 //---------------------------------------------------------------------------- 16 #ifndef AGG_VCGEN_STROKE_INCLUDED 17 #define AGG_VCGEN_STROKE_INCLUDED 18 #include "agg_math_stroke.h" 19 namespace agg 20 { 21 class vcgen_stroke 22 { 23 enum status_e { 24 initial, 25 ready, 26 cap1, 27 cap2, 28 outline1, 29 close_first, 30 outline2, 31 out_vertices, 32 end_poly1, 33 end_poly2, 34 stop 35 }; 36 public: 37 typedef vertex_sequence<vertex_dist_cmd, 6> vertex_storage; 38 typedef pod_deque<point_type, 6> coord_storage; 39 vcgen_stroke(); 40 void line_cap(line_cap_e lc) 41 { 42 m_line_cap = lc; 43 } 44 void line_join(line_join_e lj) 45 { 46 m_line_join = lj; 47 } 48 void inner_join(inner_join_e ij) 49 { 50 m_inner_join = ij; 51 } 52 line_cap_e line_cap() const 53 { 54 return m_line_cap; 55 } 56 line_join_e line_join() const 57 { 58 return m_line_join; 59 } 60 inner_join_e inner_join() const 61 { 62 return m_inner_join; 63 } 64 void width(FX_FLOAT w) 65 { 66 m_width = w / 2; 67 } 68 void miter_limit(FX_FLOAT ml) 69 { 70 m_miter_limit = ml; 71 } 72 void miter_limit_theta(FX_FLOAT t); 73 void inner_miter_limit(FX_FLOAT ml) 74 { 75 m_inner_miter_limit = ml; 76 } 77 void approximation_scale(FX_FLOAT as) 78 { 79 m_approx_scale = as; 80 } 81 FX_FLOAT width() const 82 { 83 return m_width * 2; 84 } 85 FX_FLOAT miter_limit() const 86 { 87 return m_miter_limit; 88 } 89 FX_FLOAT inner_miter_limit() const 90 { 91 return m_inner_miter_limit; 92 } 93 FX_FLOAT approximation_scale() const 94 { 95 return m_approx_scale; 96 } 97 void remove_all(); 98 void add_vertex(FX_FLOAT x, FX_FLOAT y, unsigned cmd); 99 void rewind(unsigned path_id); 100 unsigned vertex(FX_FLOAT* x, FX_FLOAT* y); 101 private: 102 vcgen_stroke(const vcgen_stroke&); 103 const vcgen_stroke& operator = (const vcgen_stroke&); 104 vertex_storage m_src_vertices; 105 coord_storage m_out_vertices; 106 FX_FLOAT m_width; 107 FX_FLOAT m_miter_limit; 108 FX_FLOAT m_inner_miter_limit; 109 FX_FLOAT m_approx_scale; 110 line_cap_e m_line_cap; 111 line_join_e m_line_join; 112 inner_join_e m_inner_join; 113 unsigned m_closed; 114 status_e m_status; 115 status_e m_prev_status; 116 unsigned m_src_vertex; 117 unsigned m_out_vertex; 118 }; 119 } 120 #endif 121
