gistfile1.cpp

#include <MenuBackend.h>
#include <LiquidCrystal.h>

#define VERSION "0.0.1"

#define B_UP 0
#define B_DOWN 1
#define B_ENTER 2
#define B_CANCEL 3

#define LCD_ROWS 20
#define LCD_LINES 4

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

const int buttonPins[] = {6, 7, 9, 10};
int buttonStates[] = {LOW, LOW, LOW, LOW};
long lastDebounceTimes[] = {0, 0, 0, 0};

long debaunceDelay = 500;
const int ledPin = 13;

void setup() {
  
  for(int i = 0; i < 4; i++) {
    pinMode(buttonPins[i], INPUT);
  }
  
  lcd.begin(LCD_ROWS, LCD_LINES);
  lcd.clear();
  lcd.setCursor(3, 1); // Center the text
  lcd.print("Jrims v " VERSION);
  delay(2000);
  
  menuSetup();
}

void loop() {
  navigateMenu();
}

MenuBackend menu = MenuBackend(menuUseEvent, menuChangeEvent);

MenuItem runProgram("Run program");
MenuItem changeProgram("Change program");
  MenuItem changeMashing("Mashing");
  MenuItem changeSparging("Sparging");
  MenuItem changeBoiling("Boiling");
  MenuItem changeChilling("Chilling");

void menuSetup() {
  menu.getRoot().add(runProgram);
  runProgram.addAfter(changeProgram);
  changeProgram.addAfter(runProgram);
  
  changeProgram.addLeft(changeProgram);
  changeProgram.addRight(changeMashing);
  
    changeMashing.addAfter(changeSparging);
    changeMashing.addBefore(changeChilling);
    changeMashing.addLeft(changeProgram);

    changeSparging.addAfter(changeBoiling);
    changeSparging.addBefore(changeMashing);
    changeSparging.addLeft(changeProgram);

    changeBoiling.addAfter(changeChilling);
    changeBoiling.addBefore(changeSparging);
    changeBoiling.addLeft(changeProgram);
    
    changeChilling.addAfter(changeMashing);
    changeChilling.addBefore(changeBoiling);
    changeChilling.addLeft(changeProgram);

    printMenuItem(&runProgram);
}

void menuUseEvent(MenuUseEvent used) {
  lcd.clear();
  lcd.print("Used: ");
  lcd.println(used.item.getName());
}

void menuChangeEvent(MenuChangeEvent changed) {

  MenuItem itemCurrent = changed.to;
  lcd.clear();
  lcd.print(itemCurrent.getName());
  
}

void printMenuItem(const MenuItem *itemCurrent) {
  MenuItem *itemAfter = itemCurrent->getAfter();

  int line = 0;
  lcd.clear();
  lcd.print("> ");
  lcd.print(itemCurrent->getName());
  
  while(itemAfter && itemAfter != itemCurrent) {
    lcd.setCursor(2, ++line);
    lcd.print(itemAfter->getName());
    itemAfter = itemAfter->getAfter();
  }
}

void navigateMenu() {
  
}