view include/core/ini.h @ 187:9613d72b097e

*: multiple performance improvements like marking `static const` when it makes sense... date: change old stupid heap-based method to a structure which should make copying the thing actually make a copy. also many performance-based changes, like removing the std::tie dependency and forward-declaring nlohmann json *: replace every instance of QString::fromUtf8 to Strings::ToQString. the main difference is that our function will always convert exactly what is in the string, while some other times it would only convert up to the nearest NUL byte
author Paper <mrpapersonic@gmail.com>
date Wed, 06 Dec 2023 13:43:54 -0500
parents 7d3ad9529c4c
children 53211cb1e7f5
line wrap: on
line source

#ifndef __core__ini_h
#define __core__ini_h

#define MINI_CASE_SENSITIVE
#include "mini/ini.h"
#include "core/strings.h"
#include "gui/translate/anime.h"
#include "gui/translate/config.h"
#include <type_traits>
#include <string>

namespace INI {

/* very simple tutorial on how to give anyone who reads
   your code an aneurysm */
template< class... >  
using void_t = void;

template <typename T, typename = void>
struct is_toutf8string_available : std::false_type {};

template<typename T>
struct is_toutf8string_available<T,
		void_t<decltype(Strings::ToUtf8String(std::declval<T>()))>> : std::true_type {};

template <typename T, typename = void>
struct is_translation_available : std::false_type {};

template<typename T>
struct is_translation_available<T,
		void_t<decltype(Translate::ToString(std::declval<T>()))>> : std::true_type {};

template<typename T>
T GetIniValue(const mINI::INIStructure& ini, const std::string& section,
	          const std::string& value, const T& def) {
	if (!ini.has(section) || !ini.get(section).has(value))
		return def;

	const std::string val = ini.get(section).get(value);

	if constexpr (std::is_arithmetic<T>::value) {
		/* Integer? */
		if constexpr (std::is_same<T, bool>::value) {
			/* Boolean? */
			return Strings::ToBool(val, def);
		} else {
			/* Always fall back to long long */
			return Strings::ToInt<T>(val, def);
		}
	} else {
		return val;
	}
}

/* this should be able to handle most of our custom types */
template<typename T>
void SetIniValue(mINI::INIStructure& ini, const std::string& section,
	             const std::string& key, const T& value) {
	auto& ini_key = ini[section][key];

	if constexpr (is_translation_available<T>::value) {
		ini_key = Translate::ToString(value);
	} else if constexpr (std::is_same<T, std::string>::value) {
		ini_key = value;
	} else if constexpr (std::is_arithmetic<T>::value && !std::is_same<T, bool>::value) {
		ini_key = std::to_string(value);
	} else if constexpr (is_toutf8string_available<T>::value) {
		ini_key = Strings::ToUtf8String(value);
	}
}

}

#endif