Function createIndexSubmenuItem

include/helpers.hpp:369–402

*/
template <class TMenuItem = ui::MenuItem>
TMenuItem* createIndexSubmenuItem(std::string text, std::vector<std::string> labels, std::function<size_t()> getter, std::function<void(size_t val)> setter, bool disabled = false, bool alwaysConsume = false) {
	struct Item : TMenuItem {
		std::function<size_t()> getter;
		std::function<void(size_t)> setter;
		std::vector<std::string> labels;
		bool alwaysConsume;

		void step() override {
			size_t currIndex = getter();
			std::string label = (currIndex < labels.size()) ? labels[currIndex] : "";
			this->rightText = label + "  " + RIGHT_ARROW;
			TMenuItem::step();
		}
		ui::Menu* createChildMenu() override {
			ui::Menu* menu = new ui::Menu;
			for (size_t i = 0; i < labels.size(); i++) {
				menu->addChild(createCheckMenuItem(labels[i], "", [=]() {
					return getter() == i;
				}, [=]() {
					setter(i);
				}, false, alwaysConsume));
			}
			return menu;
		}
	};

	Item* item = createMenuItem<Item>(text);
	item->getter = getter;
	item->setter = setter;
	item->labels = labels;
	item->disabled = disabled;
	item->alwaysConsume = alwaysConsume;
	return item;
}


/** Easy wrapper for createIndexSubmenuItem() that controls an integer index at a pointer address.