comparison: src/main.h
src/main.h
- changeset 73
- 97df974b5ed5
- parent 64
- f99d52b1646b
- child 81
- 62373840e33a
equal
deleted
inserted
replaced
| 72:7c27cda03747 | 73:97df974b5ed5 |
|---|---|
| 33 constexpr char mainwindow[] = "mainwindow"; | 33 constexpr char mainwindow[] = "mainwindow"; |
| 34 } | 34 } |
| 35 | 35 |
| 36 namespace ldraw | 36 namespace ldraw |
| 37 { | 37 { |
| 38 class Object; | |
| 39 | |
| 38 // Uniquely identifies a model body object | 40 // Uniquely identifies a model body object |
| 41 template<typename T> | |
| 39 struct Id | 42 struct Id |
| 40 { | 43 { |
| 41 std::int32_t value; | 44 std::int32_t value; |
| 42 constexpr bool operator<(ldraw::Id other) const | 45 template<typename A, typename B> |
| 46 static constexpr bool is_base_or_base_of = std::disjunction_v<std::is_base_of<A, B>, std::is_base_of<B, A>>; | |
| 47 template<typename R, typename = std::enable_if_t<is_base_or_base_of<T, R>>> | |
| 48 constexpr bool operator<(ldraw::Id<R> other) const | |
| 43 { | 49 { |
| 44 return this->value < other.value; | 50 return this->value < other.value; |
| 45 } | 51 } |
| 46 friend constexpr unsigned int qHash(ldraw::Id id) | 52 friend constexpr unsigned int qHash(ldraw::Id<T> id) |
| 47 { | 53 { |
| 48 return qHash(id.value); | 54 return qHash(id.value); |
| 49 } | 55 } |
| 50 friend bool operator==(ldraw::Id one, ldraw::Id other) | 56 // Allow comparing ids as long as they are related |
| 57 template<typename R, typename = std::enable_if_t<is_base_or_base_of<T, R>>> | |
| 58 friend bool operator==(ldraw::Id<T> one, ldraw::Id<R> other) | |
| 51 { | 59 { |
| 52 return one.value == other.value; | 60 return one.value == other.value; |
| 53 } | 61 } |
| 62 // Allow upcasting | |
| 63 template<typename R, typename = std::enable_if_t<std::is_base_of_v<R, T>>> | |
| 64 constexpr operator Id<R>() const | |
| 65 { | |
| 66 return Id<R>{this->value}; | |
| 67 } | |
| 54 }; | 68 }; |
| 55 using id_t = Id; | 69 |
| 56 constexpr id_t NULL_ID = id_t{0}; | 70 using id_t = Id<Object>; |
| 71 using triangleid_t = Id<class Triangle>; | |
| 72 using quadrilateralid_t = Id<class Quadrilateral>; | |
| 73 using edgeid_t = Id<class EdgeLine>; | |
| 74 using conditionaledgeid_t = Id<class ConditionalEdge>; | |
| 75 using subfileid_t = Id<class SubfileReference>; | |
| 76 | |
| 77 constexpr struct | |
| 78 { | |
| 79 template<typename T> | |
| 80 constexpr operator Id<T>() const | |
| 81 { | |
| 82 return Id<T>{0}; | |
| 83 } | |
| 84 } NULL_ID = {}; | |
| 85 | |
| 86 template<typename T> | |
| 87 inline bool operator==(Id<T> one, decltype(NULL_ID)) | |
| 88 { | |
| 89 return one.value == 0; | |
| 90 } | |
| 91 | |
| 92 template<typename T> | |
| 93 inline bool operator<(Id<T> one, decltype(NULL_ID)) | |
| 94 { | |
| 95 return one.value < 0; | |
| 96 } | |
| 57 } | 97 } |
| 58 | 98 |
| 59 constexpr std::size_t operator""_z(const unsigned long long int x) | 99 constexpr std::size_t operator""_z(const unsigned long long int x) |
| 60 { | 100 { |
| 61 return static_cast<std::size_t>(x); | 101 return static_cast<std::size_t>(x); |
