tomato/src/chat_gui/theme.hpp
2024-04-22 00:20:13 +02:00

77 lines
1.8 KiB
C++

#pragma once
#include <imgui/imgui.h>
#include <entt/container/dense_map.hpp>
#include <entt/core/type_info.hpp>
#include <string>
#include <type_traits>
// default is resolving to its value
template<typename T>
std::string typeValueName(T V) {
return std::to_string(static_cast<std::underlying_type_t<T>>(V));
}
// stores theming values and colors not expressed by imgui directly
struct Theme {
using key_type = entt::id_type;
entt::dense_map<key_type, ImVec4> colors;
entt::dense_map<key_type, std::string> colors_name;
// TODO: spec out dependencies
// TODO: what for
entt::dense_map<key_type, float> single_values;
std::string name; // theme name
Theme(void);
// call when any color changed, so dependencies can be resolved
void update(void);
template<auto V>
void setColor(ImVec4 color) {
constexpr auto key = entt::type_hash<entt::tag<static_cast<entt::id_type>(V)>>::value();
colors[key] = color;
if (!colors_name.contains(key)) {
std::string key_name = static_cast<std::string>(
entt::type_name<decltype(V)>::value()
) + ":" + typeValueName(V);
colors_name[key] = key_name;
}
}
template<auto V>
ImVec4 getColor(void) const {
constexpr auto key = entt::type_hash<entt::tag<static_cast<entt::id_type>(V)>>::value();
const auto it = colors.find(key);
if (it != colors.end()) {
return it->second;
} else {
return {}; // TODO: pink as default?
}
}
template<auto V>
std::string_view getColorName(void) const {
constexpr auto key = entt::type_hash<entt::tag<static_cast<entt::id_type>(V)>>::value();
if (colors_name.contains(key)) {
return colors_name.at(key);
} else {
return "unk";
}
}
// TODO: actually serialize from config?
bool load(void);
bool store(void);
};
Theme getDefaultThemeDark(void);
Theme getDefaultThemeLight(void);