98 lines
2.4 KiB
C++
98 lines
2.4 KiB
C++
#pragma once
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#include <string>
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#include <functional>
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#include <utility>
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#include <list>
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#include "utils/WiiUScreen.h"
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#include "utils/ScreenUtils.h"
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template <typename T>
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class Menu {
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public:
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Menu() {
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clear();
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}
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void setOptionsCallback(std::function<void(T)> cb) {
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callback = cb;
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}
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void setHeader(const std::string &hdr) {
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header = hdr;
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}
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void setFooter(const std::string &ftr) {
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footer = ftr;
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}
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void clear() {
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content.clear();
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options.clear();
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selected = 0;
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}
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void addText(const std::string &text = "") {
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content.emplace_back(false, text);
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}
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void addOption(const std::string &text, T data) {
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content.emplace_back(true, text);
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options.push_back(data);
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}
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void render() {
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int selectedDist = selected;
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WiiUScreen::clearScreen();
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printHeader();
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for (auto &row : content) {
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std::string cursor = "";
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if (row.first) {
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cursor += (selectedDist--) ? " " : "> ";
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}
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drawString(cursor + row.second);
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}
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printFooter();
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WiiUScreen::flipBuffers();
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}
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void update(const Input *input) {
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if (input->data.buttons_d & Input::BUTTON_UP) {
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selected = (selected ? selected : options.size()) - 1;
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} else if (input->data.buttons_d & Input::BUTTON_DOWN) {
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selected = (selected < (options.size() - 1)) ? (selected + 1) : 0;
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}
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if (entrySelected(input)) {
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auto selectedOption = std::next(options.begin(), selected);
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callback(*selectedOption);
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}
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}
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private:
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void drawString(const std::string &text = "") const {
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WiiUScreen::drawLine(text.c_str());
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}
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void printHeader() const {
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drawString(header);
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drawString(std::string(header.size() + 3, '='));
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drawString();
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}
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void printFooter() const {
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ScreenUtils::printTextOnScreen(CONSOLE_SCREEN_TV, 0, 27, footer.c_str());
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ScreenUtils::printTextOnScreen(CONSOLE_SCREEN_DRC, 0, 17, footer.c_str());
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}
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bool entrySelected(const Input *input) const {
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return input->data.buttons_d & Input::BUTTON_A;
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}
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std::function<void(T)> callback;
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std::string header, footer;
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std::list<std::pair<bool, std::string>> content;
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std::list<T> options;
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size_t selected = 0;
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};
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