view include/core/ini.h @ 198:bc1ae1810855

dep/animia: switch from using classes to global functions the old idea was ok, but sort of hackish; this method doesn't use classes at all, and this way (especially important!) we can do wayland stuff AND x11 at the same time, which wasn't really possible without stupid workarounds in the other method
author Paper <mrpapersonic@gmail.com>
date Sun, 24 Dec 2023 02:59:42 -0500
parents 7d3ad9529c4c
children 53211cb1e7f5
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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