276 lines
9.4 KiB
C++
276 lines
9.4 KiB
C++
#include "settings.h"
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static void _settings_setting_load(Settings* self, const std::string& line)
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{
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for (s32 i = 0; i < SETTINGS_COUNT; i++)
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{
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const auto& entry = SETTINGS_ENTRIES[i];
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const std::string& key = entry.key;
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void* target = (u8*)self + entry.offset;
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auto match_key = [&](const std::string& full) -> const char*
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{
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if (!line.starts_with(full))
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return nullptr;
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size_t p = full.size();
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while (p < line.size() && std::isspace((u8)line[p])) ++p;
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if (p < line.size() && line[p] == '=')
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return line.c_str() + p + 1;
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return nullptr;
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};
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const char* value = nullptr;
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switch (entry.type)
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{
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case TYPE_INT:
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if ((value = match_key(key))) { *(s32*)target = std::atoi(value); return; }
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break;
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case TYPE_BOOL:
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if ((value = match_key(key))) { *(bool*)target = string_to_bool(value); return; }
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break;
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case TYPE_FLOAT:
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if ((value = match_key(key))) { *(f32*)target = std::atof(value); return; }
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break;
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case TYPE_STRING:
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if ((value = match_key(key))) { *(std::string*)target = value; return; }
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break;
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case TYPE_IVEC2:
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{
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ivec2* v = (ivec2*)target;
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if ((value = match_key(key + "X"))) { v->x = std::atoi(value); return; }
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if ((value = match_key(key + "Y"))) { v->y = std::atoi(value); return; }
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break;
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}
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case TYPE_IVEC2_WH:
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{
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ivec2* v = (ivec2*)target;
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if ((value = match_key(key + "W"))) { v->x = std::atoi(value); return; }
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if ((value = match_key(key + "H"))) { v->y = std::atoi(value); return; }
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break;
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};
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case TYPE_VEC2:
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{
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vec2* v = (vec2*)target;
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if ((value = match_key(key + "X"))) { v->x = std::atof(value); return; }
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if ((value = match_key(key + "Y"))) { v->y = std::atof(value); return; }
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break;
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}
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case TYPE_VEC2_WH:
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{
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vec2* v = (vec2*)target;
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if ((value = match_key(key + "W"))) { v->x = std::atof(value); return; }
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if ((value = match_key(key + "H"))) { v->y = std::atof(value); return; }
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break;
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};
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case TYPE_VEC3:
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{
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vec3* v = (vec3*)target;
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if ((value = match_key(key + "R"))) { v->x = std::atof(value); return; }
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if ((value = match_key(key + "G"))) { v->y = std::atof(value); return; }
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if ((value = match_key(key + "B"))) { v->z = std::atof(value); return; }
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break;
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}
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case TYPE_VEC4:
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{
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vec4* v = (vec4*)target;
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if ((value = match_key(key + "R"))) { v->x = std::atof(value); return; }
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if ((value = match_key(key + "G"))) { v->y = std::atof(value); return; }
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if ((value = match_key(key + "B"))) { v->z = std::atof(value); return; }
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if ((value = match_key(key + "A"))) { v->w = std::atof(value); return; }
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break;
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}
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default:
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break;
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}
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}
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log_warning(std::format(SETTINGS_VALUE_INIT_WARNING, line));
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}
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std::string settings_path_get(void)
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{
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std::string filePath = preferences_path_get() + SETTINGS_PATH;
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return filePath;
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}
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static void _settings_setting_write(Settings* self, std::ostream& out, SettingsEntry entry)
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{
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u8* selfPointer = (u8*)self;
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std::string value;
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switch (entry.type)
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{
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case TYPE_INT:
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value = std::format("{}", *(s32*)(selfPointer + entry.offset));
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out << entry.key << "=" << value << "\n";
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break;
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case TYPE_BOOL:
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value = std::format("{}", *(bool*)(selfPointer + entry.offset));
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out << entry.key << "=" << value << "\n";
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break;
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case TYPE_FLOAT:
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value = std::format("{:.3f}", *(f32*)(selfPointer + entry.offset));
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out << entry.key << "=" << value << "\n";
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break;
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case TYPE_STRING:
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{
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const std::string data = *reinterpret_cast<const std::string*>(selfPointer + entry.offset);
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if (!data.empty())
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out << entry.key << "=" << data.c_str() << "\n";
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break;
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}
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case TYPE_IVEC2:
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{
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ivec2* data = (ivec2*)(selfPointer + entry.offset);
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out << entry.key << "X=" << data->x << "\n";
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out << entry.key << "Y=" << data->y << "\n";
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break;
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}
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case TYPE_IVEC2_WH:
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{
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ivec2* data = (ivec2*)(selfPointer + entry.offset);
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out << entry.key << "W=" << data->x << "\n";
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out << entry.key << "H=" << data->y << "\n";
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break;
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}
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case TYPE_VEC2:
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{
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vec2* data = (vec2*)(selfPointer + entry.offset);
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out << entry.key << "X=" << std::format(SETTINGS_FLOAT_FORMAT, data->x) << "\n";
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out << entry.key << "Y=" << std::format(SETTINGS_FLOAT_FORMAT, data->y) << "\n";
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break;
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}
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case TYPE_VEC2_WH:
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{
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vec2* data = (vec2*)(selfPointer + entry.offset);
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out << entry.key << "W=" << std::format(SETTINGS_FLOAT_FORMAT, data->x) << "\n";
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out << entry.key << "H=" << std::format(SETTINGS_FLOAT_FORMAT, data->y) << "\n";
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break;
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}
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case TYPE_VEC3:
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{
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vec3* data = (vec3*)(selfPointer + entry.offset);
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out << entry.key << "R=" << std::format(SETTINGS_FLOAT_FORMAT, data->r) << "\n";
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out << entry.key << "G=" << std::format(SETTINGS_FLOAT_FORMAT, data->g) << "\n";
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out << entry.key << "B=" << std::format(SETTINGS_FLOAT_FORMAT, data->b) << "\n";
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break;
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}
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case TYPE_VEC4:
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{
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vec4* data = (vec4*)(selfPointer + entry.offset);
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out << entry.key << "R=" << std::format(SETTINGS_FLOAT_FORMAT, data->r) << "\n";
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out << entry.key << "G=" << std::format(SETTINGS_FLOAT_FORMAT, data->g) << "\n";
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out << entry.key << "B=" << std::format(SETTINGS_FLOAT_FORMAT, data->b) << "\n";
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out << entry.key << "A=" << std::format(SETTINGS_FLOAT_FORMAT, data->a) << "\n";
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break;
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}
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default:
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break;
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}
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}
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void settings_save(Settings* self)
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{
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const std::string path = settings_path_get();
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const std::filesystem::path filesystemPath(path);
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const std::filesystem::path directory = filesystemPath.parent_path();
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if (!directory.empty())
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{
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std::error_code errorCode;
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std::filesystem::create_directories(directory, errorCode);
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if (errorCode)
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{
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log_error(std::format(SETTINGS_DIRECTORY_ERROR, directory.string(), errorCode.message()));
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return;
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}
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}
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std::string data;
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if (std::filesystem::exists(filesystemPath))
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{
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if (std::ifstream in(path, std::ios::binary); in)
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data.assign(std::istreambuf_iterator<char>(in), std::istreambuf_iterator<char>());
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}
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std::filesystem::path temp = filesystemPath;
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temp += SETTINGS_TEMPORARY_EXTENSION;
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std::ofstream out(temp, std::ios::binary | std::ios::trunc);
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if (!out)
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{
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log_error(std::format(SETTINGS_INIT_ERROR, temp.string()));
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return;
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}
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out << SETTINGS_SECTION << "\n";
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for (s32 i = 0; i < SETTINGS_COUNT; i++)
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_settings_setting_write(self, out, SETTINGS_ENTRIES[i]);
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out << "\n" << SETTINGS_SECTION_IMGUI << "\n";
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out << data;
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out.flush();
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if (!out.good())
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{
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log_error(std::format(SETTINGS_SAVE_ERROR, temp.string()));
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return;
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}
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out.close();
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std::error_code errorCode;
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std::filesystem::rename(temp, filesystemPath, errorCode);
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if (errorCode)
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{
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// Windows can block rename if target exists; try remove+rename
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std::filesystem::remove(filesystemPath, errorCode);
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errorCode = {};
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std::filesystem::rename(temp, filesystemPath, errorCode);
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if (errorCode)
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{
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log_error(std::format(SETTINGS_SAVE_FINALIZE_ERROR, filesystemPath.string(), errorCode.message()));
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std::filesystem::remove(temp);
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return;
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}
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}
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log_info(std::format(SETTINGS_SAVE_INFO, path));
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}
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void settings_init(Settings* self)
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{
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const std::string path = settings_path_get();
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std::ifstream file(path, std::ios::binary);
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if (file)
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log_info(std::format(SETTINGS_INIT_INFO, path));
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else
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{
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log_warning(std::format(SETTINGS_INIT_WARNING, path));
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settings_save(self);
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std::ofstream out(path, std::ios::binary | std::ios::app);
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out << SETTINGS_IMGUI_DEFAULT;
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out.flush();
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out.close();
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file.open(path, std::ios::binary);
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}
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std::string line;
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bool inSettingsSection = false;
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while (std::getline(file, line))
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{
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if (line == SETTINGS_SECTION)
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{
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inSettingsSection = true;
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continue;
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}
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if (line.empty()) continue;
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if (line == SETTINGS_SECTION_IMGUI) break;
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if (inSettingsSection) _settings_setting_load(self, line);
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}
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} |