user_settings_win32_impl.hpp

 
#pragma once
 
#include "user_settings_intf.hpp"
#include "../win32/win32.hpp"
#include "../path/path.hpp"
#include "../metadata/metadata.hpp"
#include "../macros.hpp"
#include <format>
#include <string>
#include <expected>
#include <system_error>
#include <Windows.h>
#include <winreg.h>
 
hi_export_module(hikogui.settings.user_settings : impl);
 
hi_export namespace hi { inline namespace v1 {
 
[[nodiscard]] inline std::string user_setting_registry_path()
{
    return std::format("Software\\{}\\{}", get_application_vendor(), get_application_name());
}
 
[[nodiscard]] inline std::expected<std::string, std::error_code> get_user_setting_string(std::string_view name) noexcept
{
    // First check the registry of the current-user.
    if (auto const value = win32_RegGetValue<std::string>(HKEY_CURRENT_USER, user_setting_registry_path(), name)) {
        return *value;
    } else if (value.error() != win32_error::file_not_found) {
        return std::unexpected{std::error_code{value.error()}};
    }
 
    // Now check the registry for the local-machine.
    // These are settings that where made by the Administrator of the machine.
    if (auto const value = win32_RegGetValue<std::string>(HKEY_LOCAL_MACHINE, user_setting_registry_path(), name)) {
        return *value;
    } else {
        return std::unexpected{std::error_code{value.error()}};
    }
}
 
[[nodiscard]] inline std::expected<long long, std::error_code> get_user_setting_integral(std::string_view name) noexcept
{
    // First check the registry of the current-user.
    if (auto const value = win32_RegGetValue<long long>(HKEY_CURRENT_USER, user_setting_registry_path(), name)) {
        return *value;
    } else if (value.error() != win32_error::file_not_found) {
        return std::unexpected{std::error_code{value.error()}};
    }
 
    // Now check the registry for the local-machine.
    // These are settings that where made by the Administrator of the machine.
    if (auto const value = win32_RegGetValue<long long>(HKEY_LOCAL_MACHINE, user_setting_registry_path(), name)) {
        return *value;
    } else {
        return std::unexpected{std::error_code{value.error()}};
    }
}
 
inline std::error_code set_user_setting(std::string_view name, std::string_view value) noexcept
{
    return win32_RegSetKeyValue(HKEY_CURRENT_USER, user_setting_registry_path(), name, value);
}
 
inline std::error_code set_user_setting(std::string_view name, long long value) noexcept
{
    return win32_RegSetKeyValue(HKEY_CURRENT_USER, user_setting_registry_path(), name, narrow_cast<uint32_t>(value));
}
 
inline std::error_code delete_user_setting(std::string_view name) noexcept
{
    return win32_RegDeleteKeyValue(HKEY_CURRENT_USER, user_setting_registry_path(), name);
}
 
inline std::error_code delete_user_settings() noexcept
{
    return win32_RegDeleteKey(HKEY_CURRENT_USER, user_setting_registry_path());
}
 
}}