comparison: src/model.h
src/model.h
- changeset 210
- 232e7634cc8a
- parent 206
- 654661eab7f3
- child 211
- b27b90fb993f
equal
deleted
inserted
replaced
| 209:c93e4a1eaadb | 210:232e7634cc8a |
|---|---|
| 45 QString code; | 45 QString code; |
| 46 }; | 46 }; |
| 47 | 47 |
| 48 struct Empty {}; | 48 struct Empty {}; |
| 49 | 49 |
| 50 template<typename T, typename R> | |
| 51 struct transfer_reference | |
| 52 { | |
| 53 using type = std::remove_reference_t<R>; | |
| 54 }; | |
| 55 | |
| 56 template<typename T, typename R> | |
| 57 struct transfer_reference<T&, R> | |
| 58 { | |
| 59 using type = std::remove_reference_t<R>&; | |
| 60 }; | |
| 61 | |
| 62 template<typename T, typename R> | |
| 63 struct transfer_reference<T&&, R> | |
| 64 { | |
| 65 using type = std::remove_reference_t<R>&&; | |
| 66 }; | |
| 67 | |
| 68 template<typename T, typename R> | |
| 69 using transfer_reference_t = typename transfer_reference<T, R>::type; | |
| 70 static_assert(std::is_same_v<transfer_reference_t<int, char>, char>); | |
| 71 static_assert(std::is_same_v<transfer_reference_t<int&, char>, char&>); | |
| 72 static_assert(std::is_same_v<transfer_reference_t<int&&, char>, char&&>); | |
| 73 | |
| 50 using ModelElement = std::variant< | 74 using ModelElement = std::variant< |
| 51 Colored<SubfileReference>, | 75 Colored<SubfileReference>, |
| 52 Colored<LineSegment>, | 76 Colored<LineSegment>, |
| 53 Colored<Triangle>, | 77 Colored<Triangle>, |
| 54 Colored<Quadrilateral>, | 78 Colored<Quadrilateral>, |
| 55 Colored<ConditionalEdge>, | 79 Colored<ConditionalEdge>, |
| 56 Comment, | 80 Comment, |
| 57 Empty, | 81 Empty, |
| 58 ParseError>; | 82 ParseError>; |
| 83 | |
| 84 using PolygonElement = Colored<std::variant< | |
| 85 LineSegment, | |
| 86 Triangle, | |
| 87 Quadrilateral, | |
| 88 ConditionalEdge>>; | |
| 89 | |
| 90 template<typename T> | |
| 91 struct remove_color { using type = T; }; | |
| 92 | |
| 93 template<typename T> | |
| 94 struct remove_color<Colored<T>> { using type = T; }; | |
| 95 | |
| 96 template<typename T> | |
| 97 struct remove_color<Colored<T>&> { using type = T&; }; | |
| 98 | |
| 99 template<typename T> | |
| 100 struct remove_color<Colored<T>&&> { using type = T&&; }; | |
| 101 | |
| 102 template<typename T> | |
| 103 using remove_color_t = typename remove_color<T>::type; | |
| 104 | |
| 105 template<typename T> | |
| 106 constexpr remove_color_t<T&&> extract_colored(T&& x) | |
| 107 { | |
| 108 return static_cast<remove_color_t<T&&>>(x); | |
| 109 } | |
| 110 | |
| 111 template<typename Ret, typename T> | |
| 112 constexpr auto visitPolygon( | |
| 113 std::function<Ret(transfer_reference_t<T&&, LineSegment>)> f1, | |
| 114 std::function<Ret(transfer_reference_t<T&&, Triangle>)> f2, | |
| 115 std::function<Ret(transfer_reference_t<T&&, Quadrilateral>)> f3, | |
| 116 std::function<Ret(transfer_reference_t<T&&, ConditionalEdge>)> f4, | |
| 117 T&& element) | |
| 118 { | |
| 119 return std::visit(overloaded{f1, f2, f3, f4}, extract_colored(element)); | |
| 120 } | |
| 121 | |
| 122 template<typename T, typename Fn> | |
| 123 constexpr void visitPoints(T&& element, Fn func) | |
| 124 { | |
| 125 visitPolygon<void>( | |
| 126 [&func](transfer_reference_t<T&&, LineSegment> edge) | |
| 127 { | |
| 128 func(edge.p1); | |
| 129 func(edge.p2); | |
| 130 }, | |
| 131 [&func](transfer_reference_t<T&&, Triangle>& tri) | |
| 132 { | |
| 133 func(tri.p1); | |
| 134 func(tri.p2); | |
| 135 func(tri.p3); | |
| 136 }, | |
| 137 [&func](transfer_reference_t<T&&, Quadrilateral>& quad) | |
| 138 { | |
| 139 func(quad.p1); | |
| 140 func(quad.p2); | |
| 141 func(quad.p3); | |
| 142 func(quad.p4); | |
| 143 }, | |
| 144 [&func](transfer_reference_t<T&&, ConditionalEdge>& cedge) | |
| 145 { | |
| 146 func(cedge.p1); | |
| 147 func(cedge.p2); | |
| 148 func(cedge.c1); | |
| 149 func(cedge.c2); | |
| 150 }, | |
| 151 element); | |
| 152 } | |
| 59 | 153 |
| 60 QString modelElementToString(const ModelElement& element); | 154 QString modelElementToString(const ModelElement& element); |
| 61 struct ModelId | 155 struct ModelId |
| 62 { | 156 { |
| 63 std::int32_t value; | 157 std::int32_t value; |
