1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
#include "inspect.hpp"
#include "compat/assert.hpp"
#include "compat/defs.hpp"
#include "entity/accessor.hpp"
#include "imgui-raii.hpp"
#include <Corrade/Containers/String.h>
#include <Corrade/Containers/StringIterable.h>
#include <Magnum/Math/Vector.h>
#include <Magnum/Math/Vector2.h>
#include <Magnum/Math/Vector3.h>
#include <Magnum/Math/Vector4.h>
#include <algorithm>
namespace floormat {
namespace {
String label_left(StringView label)
{
float width = ImGui::CalcItemWidth(), x = ImGui::GetCursorPosX();
ImGui::Text("%s", label.data());
ImGui::SameLine();
ImGui::SetCursorPosX(x + width*.5f + ImGui::GetStyle().ItemInnerSpacing.x);
ImGui::SetNextItemWidth(-1);
return ""_s.join(StringIterable({ "##"_s, label }));
}
template<typename T> struct is_magnum_vector_ final : std::false_type {};
template<std::size_t N, typename T> struct is_magnum_vector_<Math::Vector<N, T>> : std::true_type {};
template<typename T> struct is_magnum_vector_<Math::Vector2<T>> : std::true_type {};
template<typename T> struct is_magnum_vector_<Math::Vector3<T>> : std::true_type {};
template<typename T> struct is_magnum_vector_<Math::Vector4<T>> : std::true_type {};
template<typename T> constexpr bool is_magnum_vector = is_magnum_vector_<T>::value;
template<typename T> struct IGDT_;
template<> struct IGDT_<std::uint8_t> : std::integral_constant<int, ImGuiDataType_U8> {};
template<> struct IGDT_<std::int8_t> : std::integral_constant<int, ImGuiDataType_S8> {};
template<> struct IGDT_<std::uint16_t> : std::integral_constant<int, ImGuiDataType_U16> {};
template<> struct IGDT_<std::int16_t> : std::integral_constant<int, ImGuiDataType_S16> {};
template<> struct IGDT_<std::uint32_t> : std::integral_constant<int, ImGuiDataType_U32> {};
template<> struct IGDT_<std::int32_t> : std::integral_constant<int, ImGuiDataType_S32> {};
template<> struct IGDT_<float> : std::integral_constant<int, ImGuiDataType_Float> {};
template<typename T> constexpr auto IGDT = IGDT_<T>::value;
using namespace imgui;
using namespace entities;
template<typename T> void do_inspect_field(void* datum, const erased_accessor& accessor, field_repr repr)
{
fm_assert(accessor.check_field_name<T>());
bool should_disable;
switch (accessor.is_enabled(datum))
{
using enum field_status;
case hidden: return;
case readonly: should_disable = true; break;
case enabled: should_disable = false; break;
}
should_disable = should_disable || !accessor.can_write();
[[maybe_unused]] auto disabler = begin_disabled(should_disable);
bool ret = false;
const auto label = label_left(accessor.field_name);
T value{};
accessor.read_fun(datum, accessor.reader, &value);
auto orig = value;
if constexpr (!is_magnum_vector<T>)
{
auto [min, max] = accessor.get_range(datum).convert<T>();
constexpr auto igdt = IGDT<T>;
switch (repr)
{
case field_repr::input: ret = ImGui::InputScalar(label.data(), igdt, &value); break;
case field_repr::slider: ret = ImGui::SliderScalar(label.data(), igdt, &value, &min, &max); break;
case field_repr::drag: ret = ImGui::DragScalar(label.data(), igdt, &value, 1, &min, &max); break;
}
value = std::clamp(value, min, max);
}
else
{
auto [min_, max_] = accessor.get_range(datum).convert<typename T::Type>();
Math::Vector<T::Size, typename T::Type> min(min_), max(max_);
constexpr auto igdt = IGDT<typename T::Type>;
switch (repr)
{
case field_repr::input:
ret = ImGui::InputScalarN(label.data(), igdt, &value, T::Size);
break;
case field_repr::drag:
fm_warn_once("can't use imgui input drag mode for vector type");
[[fallthrough]];
case field_repr::slider:
ret = ImGui::SliderScalarN(label.data(), igdt, &value, T::Size, &min, &max);
break;
}
}
ImGui::NewLine();
if (ret && !should_disable && value != orig)
if (accessor.is_enabled(datum) >= field_status::enabled && accessor.can_write())
accessor.write_fun(datum, accessor.writer, &value);
}
} // namespace
#define MAKE_SPEC(type, repr) \
template<> void inspect_field<type>(void* datum, const erased_accessor& accessor) { \
do_inspect_field<type>(datum, accessor, (repr)); \
}
#define MAKE_SPEC_REPR(type, repr) \
template<> void inspect_field<field_repr_<type, field_repr, repr>>(void* datum, const erased_accessor& accessor) { \
do_inspect_field<type>(datum, accessor, (repr)); \
}
#define MAKE_SPEC_REPRS(type) \
MAKE_SPEC_REPR(type, field_repr::input) \
MAKE_SPEC_REPR(type, field_repr::slider) \
MAKE_SPEC_REPR(type, field_repr::drag) \
MAKE_SPEC(type, field_repr::input)
#define MAKE_SPEC_REPRS2(type) \
MAKE_SPEC_REPRS(Math::Vector2<type>) \
MAKE_SPEC_REPRS(Math::Vector3<type>) \
MAKE_SPEC_REPRS(Math::Vector4<type>) \
MAKE_SPEC_REPRS(type)
MAKE_SPEC_REPRS2(std::uint8_t)
MAKE_SPEC_REPRS2(std::int8_t)
MAKE_SPEC_REPRS2(std::uint16_t)
MAKE_SPEC_REPRS2(std::int16_t)
MAKE_SPEC_REPRS2(std::uint32_t)
MAKE_SPEC_REPRS2(std::int32_t)
} // namespace floormat
|
