Add menu for setting timezone

src/Menu.cpp

@@ -76,6 +76,7 @@ void Menu::HandleButtonPress(uint64_t buttonMask)
 
     m_currentPage = m_pages[m_currentPage].menuItems[m_currentMenuItem].pageNum;
     m_currentMenuItem = 0;
+    m_numMenuItemsinCurrentPage = m_pages[m_currentPage].menuItems.size();
 
     Redraw(false);
 
@@ -85,6 +86,7 @@ void Menu::HandleButtonPress(uint64_t buttonMask)
   if (buttonMask & BACK_BTN_MASK) {
     m_currentPage = m_pages[m_currentPage].backPageNum;
     m_currentMenuItem = 0;
+    m_numMenuItemsinCurrentPage = m_pages[m_currentPage].menuItems.size();
 
     Redraw(false);
     return;
@@ -93,20 +95,6 @@ void Menu::HandleButtonPress(uint64_t buttonMask)
 
 void Menu::SetPages(const std::vector<MenuPage> & pages)
 {
-  // If the number of pages has changed, reset the current page and menu item.
-  if (pages.size() != m_numPages) {
-    Serial.println("Resetting current page");
-    m_currentPage = 0;
-    m_currentMenuItem = 0;
-  }
-
-  // If the number of menu items has changed, reset the current menu item.
-  if (pages.size() > 0 && pages[m_currentMenuItem].menuItems.size() != m_numMenuItemsinCurrentPage) {
-    Serial.println("Resetting current menu item");
-    m_currentMenuItem = 0;
-    m_numMenuItemsinCurrentPage = pages[m_currentPage].menuItems.size();
-  }
-
   m_pages = pages;
   m_numPages = pages.size();
 }
@@ -179,7 +167,7 @@ void Menu::Redraw(bool partialRefresh)
     for (uint8_t i = 0; i < m_numMenuItemsinCurrentPage; i++) {
       int16_t x, y;
       uint16_t w, h;
-      m_display->getTextBounds(m_pages[m_currentPage].menuItems[m_currentMenuItem].title.c_str(), 5, top, &x, &y, &w, &h);
+      m_display->getTextBounds(m_pages[m_currentPage].menuItems[i].title.c_str(), 5, top, &x, &y, &w, &h);
 
       if (i == m_currentMenuItem) {
         m_display->fillRect(5, top, m_display->width() - 15, h + 6, GxEPD_BLACK);

src/WatchFace.cpp

@@ -4,16 +4,21 @@
 
 RTC_DATA_ATTR bool WatchFace::m_menuSetup = false;
 RTC_DATA_ATTR bool WatchFace::m_inMenu = false;
+RTC_DATA_ATTR int WatchFace::m_tzOffset = TZ_OFFSET;
 Menu WatchFace::m_menu;
 
 void WatchFace::Setup() // Called after hardware is set up
 {
 	if (!m_menuSetup) {
-		m_menuSetup = true;
 		m_menu.Init(m_display);
 	}
 
 	SetupVolatileMenuStuff();
+
+	if (!m_menuSetup) {
+		m_menu.Reset();
+		m_menuSetup = true;
+	}
 }
 
 void WatchFace::HandleButtonPress(uint64_t buttonMask)
@@ -44,7 +49,7 @@ void WatchFace::DrawWatchFace(bool partialRefresh)
 	DrawBatteryIcon();
 
 	tmElements_t currentTime;
-	m_RTC.read(currentTime, TZ_OFFSET);
+	m_RTC.read(currentTime, m_tzOffset);
 	SevenSegment sevenSegment(30, 60, 6, 5, 5);
 
 	if (currentTime.Hour < 10) {
@@ -99,6 +104,11 @@ void WatchFace::SetupVolatileMenuStuff()
 					nullptr, // callback
 					1 // pageNum
 				},
+				{
+					"Set TZ", // title
+					nullptr, // callback
+					2 // pageNum
+				},
 				{
 					"Back", // title
 					nullptr, // callback
@@ -124,6 +134,39 @@ void WatchFace::SetupVolatileMenuStuff()
 				}
 			},
 		},
+		{
+			0, // backPageNum
+			"TIMEZONE", // title
+			ALIGNMENT_CENTER, // titleAlignment
+			"", // body
+			{ // Menu items
+				{
+					"+0", // title
+					std::bind(&WatchFace::MenuTimeZoneSelected, this, 0), // callback
+					0 // pageNum
+				},
+				{
+					"+1", // title
+					std::bind(&WatchFace::MenuTimeZoneSelected, this, 3600), // callback
+					0 // pageNum
+				},
+				{
+					"+2", // title
+					std::bind(&WatchFace::MenuTimeZoneSelected, this, 7200), // callback
+					0 // pageNum
+				},
+				{
+					"+3", // title
+					std::bind(&WatchFace::MenuTimeZoneSelected, this, 10800), // callback
+					0 // pageNum
+				},
+				{
+					"Back", // title
+					nullptr, // callback
+					0 // pageNum
+				}
+			},
+		}
 	};
 
 	m_menu.SetPages(menuPages);
@@ -150,3 +193,14 @@ void WatchFace::MenuNTPSyncSelected()
 		DrawWatchFace(false);
 	}
 }
+
+void WatchFace::MenuTimeZoneSelected(int tzOffset)
+{
+	m_tzOffset = tzOffset;
+
+	if (m_inMenu) {
+		m_inMenu = false;
+		m_menu.Reset();
+		DrawWatchFace(false);
+	}
+}

src/WatchFace.h

@@ -14,9 +14,11 @@ private:
   RTC_DATA_ATTR static bool m_menuSetup;
   RTC_DATA_ATTR static bool m_inMenu;
   RTC_DATA_ATTR static Menu m_menu;
+  RTC_DATA_ATTR static int m_tzOffset;
 
   void SetupVolatileMenuStuff();
   void DrawBatteryIcon();
   void MenuExited();
   void MenuNTPSyncSelected();
+  void MenuTimeZoneSelected(int tzOffset);
 };

src/Watchy.cpp

@@ -65,15 +65,15 @@ void Watchy::DeepSleep()
   // Set GPIOs 0-39 to input to avoid power leaking out
   const uint64_t ignore = 0b11110001000000110000100111000010; // Ignore some GPIOs due to resets
   for (int i = 0; i < GPIO_NUM_MAX; i++) {
-    if ((ignore >> i) & 0b1)
+    if ((ignore >> i) & 0b1) {
       continue;
+    }
     pinMode(i, INPUT);
   }
-  esp_sleep_enable_ext0_wakeup((gpio_num_t)RTC_INT_PIN,
-                               0); // enable deep sleep wake on RTC interrupt
+  esp_sleep_enable_ext0_wakeup((gpio_num_t)RTC_INT_PIN, 0); // enable deep sleep wake on RTC interrupt
   esp_sleep_enable_ext1_wakeup(
     BTN_PIN_MASK,
-      ESP_EXT1_WAKEUP_ANY_HIGH); // enable deep sleep wake on button press
+    ESP_EXT1_WAKEUP_ANY_HIGH);
   esp_deep_sleep_start();
 }