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| 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@antigrain.com | |
| 13 // mcseemagg@yahoo.com | |
| 14 // http://www.antigrain.com | |
| 15 //---------------------------------------------------------------------------- | |
| 16 // | |
| 17 // vertex_sequence container and vertex_dist struct | |
| 18 // | |
| 19 //---------------------------------------------------------------------------- | |
| 20 #ifndef AGG_VERTEX_SEQUENCE_INCLUDED | |
| 21 #define AGG_VERTEX_SEQUENCE_INCLUDED | |
| 22 #include "agg_basics.h" | |
| 23 #include "agg_array.h" | |
| 24 #include "agg_math.h" | |
| 25 namespace agg | |
| 26 { | |
| 27 template<class T, unsigned S = 6> | |
| 28 class vertex_sequence : public pod_deque<T, S> | |
| 29 { | |
| 30 public: | |
| 31 typedef pod_deque<T, S> base_type; | |
| 32 void add(const T& val); | |
| 33 void modify_last(const T& val); | |
| 34 void close(bool remove_flag); | |
| 35 }; | |
| 36 template<class T, unsigned S> | |
| 37 void vertex_sequence<T, S>::add(const T& val) | |
| 38 { | |
| 39 if(base_type::size() > 1) { | |
| 40 if(!(*this)[base_type::size() - 2]((*this)[base_type::size() - 1])) { | |
| 41 base_type::remove_last(); | |
| 42 } | |
| 43 } | |
| 44 base_type::add(val); | |
| 45 } | |
| 46 template<class T, unsigned S> | |
| 47 void vertex_sequence<T, S>::modify_last(const T& val) | |
| 48 { | |
| 49 base_type::remove_last(); | |
| 50 add(val); | |
| 51 } | |
| 52 template<class T, unsigned S> | |
| 53 void vertex_sequence<T, S>::close(bool closed) | |
| 54 { | |
| 55 while(base_type::size() > 1) { | |
| 56 if((*this)[base_type::size() - 2]((*this)[base_type::size() - 1])) { | |
| 57 break; | |
| 58 } | |
| 59 T t = (*this)[base_type::size() - 1]; | |
| 60 base_type::remove_last(); | |
| 61 modify_last(t); | |
| 62 } | |
| 63 if(closed) { | |
| 64 while(base_type::size() > 1) { | |
| 65 if((*this)[base_type::size() - 1]((*this)[0])) { | |
| 66 break; | |
| 67 } | |
| 68 base_type::remove_last(); | |
| 69 } | |
| 70 } | |
| 71 } | |
| 72 const FX_FLOAT vertex_dist_epsilon = 1e-14f; | |
| 73 struct vertex_dist : public CFX_Object { | |
| 74 FX_FLOAT x; | |
| 75 FX_FLOAT y; | |
| 76 FX_FLOAT dist; | |
| 77 vertex_dist() {} | |
| 78 vertex_dist(FX_FLOAT x_, FX_FLOAT y_) : | |
| 79 x(x_), | |
| 80 y(y_), | |
| 81 dist(0) | |
| 82 { | |
| 83 } | |
| 84 bool operator () (const vertex_dist& val) | |
| 85 { | |
| 86 bool ret = (dist = calc_distance(x, y, val.x, val.y)) > vertex_dist_epsi
lon; | |
| 87 return ret; | |
| 88 } | |
| 89 }; | |
| 90 struct vertex_dist_cmd : public vertex_dist { | |
| 91 unsigned cmd; | |
| 92 vertex_dist_cmd() {} | |
| 93 vertex_dist_cmd(FX_FLOAT x_, FX_FLOAT y_, unsigned cmd_) : | |
| 94 vertex_dist(x_, y_), | |
| 95 cmd(cmd_) | |
| 96 { | |
| 97 } | |
| 98 }; | |
| 99 } | |
| 100 #endif | |
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Chromium Code Reviews
Issue 402463002:
Replace agg with skia (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master