Complete rewrite of Application

Menu.cpp

@@ -0,0 +1,72 @@
+#include "Menu.h"
+
+Menu::Menu() {
+  type = MENU_MAIN;
+  index = 0;
+}
+
+int Menu::getSize(MenuType type) {
+  switch (type) {
+    case MENU_MAIN: return MAIN_SIZE;
+    case MENU_SETUP: return SETUP_SIZE;
+  }
+  return 0;
+}
+
+const char* Menu::getItem(MenuType type, int index) {
+  switch (type) {
+    case MENU_MAIN:
+      switch (index) {
+        case 0: return "Start";
+        case 1: return "Setup";
+        case 2: return "Version";
+      }
+      break;
+
+    case MENU_SETUP:
+      switch (index) {
+        case 0: return "Temperature";
+        case 1: return "Humidity";
+        case 2: return "Back";
+      }
+      break;
+  }
+
+  return "";
+}
+
+void Menu::next() {
+  index = (index + 1) % getSize(type);
+}
+
+void Menu::prev() {
+  index--;
+  if (index < 0) index = getSize(type) - 1;
+}
+
+void Menu::enter() {
+  if (type == MENU_MAIN) {
+    if (index == 1) type = MENU_SETUP;
+  }
+  index = 0;
+}
+
+void Menu::back() {
+  if (type != MENU_MAIN) {
+    type = MENU_MAIN;
+    index = 0;
+  }
+}
+
+const char* Menu::getCurrent() {
+  return getItem(type, index);
+}
+
+const char* Menu::getNext() {
+  int nextIndex = (index + 1) % getSize(type);
+  return getItem(type, nextIndex);
+}
+
+MenuType Menu::getType() {
+  return type;
+}