Method readFromConfig

src/openboardview/UI/Keyboard/KeyBindings.cpp:99–141

Serialization/deserialization use '|' to specify multiple bindings and '~' to combine with modifiers, so they cannot be used in key names

// Serialization/deserialization use '|' to specify multiple bindings and '~' to combine with modifiers, so they cannot be used in key names
void KeyBindings::readFromConfig(Confparse &obvconfig) {
	for (auto &keybinding : keybindings) {
		auto confline = obvconfig.ParseStr(("KeyBinding" + keybinding.first).c_str(), nullptr);
		if (confline == nullptr)
			continue;

		// Multiple bindings for a single function are combined with bindingSeparator '|'
		std::vector<KeyBinding> bindings;
		for (auto &kbs : split_string(confline, bindingSeparator)) {
			//Modifiers combined with modifierSeparator '~' to key, key always specified last
			auto keyNames = split_string(kbs, modifierSeparator);
			if (keyNames.empty())
				continue;

			std::vector<ImGuiKey> keys;
			keys.reserve(keyNames.size());

			// Parse key names to ImGui keys
			std::transform(keyNames.begin(), keyNames.end(), std::back_inserter(keys), [this](std::string &keyName) -> ImGuiKey {
				// Replace some serialization-compatible keys with the ImGui-compatible name
				auto deserializedNameIt = deserializeName.find(keyName);
				if (deserializedNameIt != deserializeName.end()) {
					keyName = deserializedNameIt->second;
				}

				auto key = nameToKey.find(keyName);
				if (key == nameToKey.end()) {
					SDL_LogError(SDL_LOG_CATEGORY_ERROR, "Unknown key name: %s", keyName.c_str());
					return ImGuiKey_None;
				} else {
					return key->second;
				}
			});

			std::vector<ImGuiKey> modifiers(keys.begin(), keys.end()-1);

			bindings.push_back({keys.back(), modifiers});
		}
		keybinding.second = bindings;
	}

	writeToConfig(obvconfig);
}

void KeyBindings::writeToConfig(Confparse &obvconfig) {
	for (auto &keybinding : keybindings) {