Detect full charge and improve watchface display

src/components/battery/BatteryController.cpp

@@ -19,6 +19,12 @@ void Battery::Update() {
   isCharging = !nrf_gpio_pin_read(chargingPin);
   isPowerPresent = !nrf_gpio_pin_read(powerPresentPin);
 
+  if (isPowerPresent && !isCharging) {
+    isFull = true;
+  } else if (!isPowerPresent) {
+    isFull = false;
+  }
+
   if (isReading) {
     return;
   }
@@ -65,12 +71,12 @@ void Battery::SaadcEventHandler(nrfx_saadc_evt_t const* p_event) {
     // p_event->data.done.p_buffer[0] = (adc_voltage / reference_voltage) * 1024
     voltage = p_event->data.done.p_buffer[0] * (8 * 600) / 1024;
 
-    if (voltage > battery_max) {
+    if (isFull) {
       percentRemaining = 100;
     } else if (voltage < battery_min) {
       percentRemaining = 0;
     } else {
-      percentRemaining = (voltage - battery_min) * 100 / (battery_max - battery_min);
+      percentRemaining = std::min((voltage - battery_min) * 100 / (battery_max - battery_min), 99);
     }
 
     nrfx_saadc_uninit();

src/components/battery/BatteryController.h

@@ -23,13 +23,19 @@ namespace Pinetime {
       }
 
       bool IsCharging() const {
-        return isCharging;
+        // isCharging will go up and down when fully charged
+        // isFull makes sure this returns false while fully charged.
+        return isCharging && !isFull;
       }
 
       bool IsPowerPresent() const {
         return isPowerPresent;
       }
 
+      bool IsFull() const {
+        return isFull;
+      }
+
     private:
       static Battery* instance;
       nrf_saadc_value_t saadc_value;
@@ -40,6 +46,7 @@ namespace Pinetime {
       uint16_t voltage = 0;
       uint8_t percentRemaining = 0;
 
+      bool isFull = false;
       bool isCharging = false;
       bool isPowerPresent = false;
 

src/displayapp/screens/BatteryInfo.cpp

@@ -60,10 +60,10 @@ void BatteryInfo::Refresh() {
   batteryPercent = batteryController.PercentRemaining();
   batteryVoltage = batteryController.Voltage();
 
-  if (batteryController.IsCharging() and batteryPercent < 100) {
+  if (batteryController.IsCharging()) {
     lv_obj_set_style_local_bg_color(charging_bar, LV_BAR_PART_INDIC, LV_STATE_DEFAULT, LV_COLOR_RED);
     lv_label_set_text_static(status, "Charging");
-  } else if (batteryPercent == 100) {
+  } else if (batteryController.IsFull()) {
     lv_obj_set_style_local_bg_color(charging_bar, LV_BAR_PART_INDIC, LV_STATE_DEFAULT, LV_COLOR_BLUE);
     lv_label_set_text_static(status, "Fully charged");
   } else if (batteryPercent < 10) {

src/displayapp/screens/PineTimeStyle.cpp

@@ -100,10 +100,7 @@ PineTimeStyle::PineTimeStyle(DisplayApp* app,
   lv_obj_set_style_local_text_color(batteryIcon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
   lv_label_set_text(batteryIcon, Symbols::batteryFull);
   lv_obj_align(batteryIcon, sidebar, LV_ALIGN_IN_TOP_MID, 0, 2);
-
-  batteryPlug = lv_label_create(lv_scr_act(), nullptr);
-  lv_obj_set_style_local_text_color(batteryPlug, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
-  lv_obj_align(batteryPlug, sidebar, LV_ALIGN_IN_TOP_MID, 0, 2);
+  lv_obj_set_auto_realign(batteryIcon, true);
 
   bleIcon = lv_label_create(lv_scr_act(), nullptr);
   lv_obj_set_style_local_text_color(bleIcon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x000000));
@@ -205,18 +202,24 @@ PineTimeStyle::~PineTimeStyle() {
   lv_obj_clean(lv_scr_act());
 }
 
+void PineTimeStyle::SetBatteryIcon() {
+  auto batteryPercent = batteryPercentRemaining.Get();
+  lv_label_set_text(batteryIcon, BatteryIcon::GetBatteryIcon(batteryPercent));
+}
+
 void PineTimeStyle::Refresh() {
+  isCharging = batteryController.IsCharging();
+  if (isCharging.IsUpdated()) {
+    if (isCharging.Get()) {
+      lv_label_set_text(batteryIcon, Symbols::plug);
+    } else {
+      SetBatteryIcon();
+    }
+  }
+  if (!isCharging.Get()) {
     batteryPercentRemaining = batteryController.PercentRemaining();
     if (batteryPercentRemaining.IsUpdated()) {
-    auto batteryPercent = batteryPercentRemaining.Get();
-    if (batteryController.IsCharging()) {
-      auto isCharging = batteryController.IsCharging() || batteryController.IsPowerPresent();
-      lv_label_set_text(batteryPlug, BatteryIcon::GetPlugIcon(isCharging));
-      lv_obj_realign(batteryPlug);
-      lv_label_set_text(batteryIcon, "");
-    } else {
-      lv_label_set_text(batteryIcon, BatteryIcon::GetBatteryIcon(batteryPercent));
-      lv_label_set_text(batteryPlug, "");
+      SetBatteryIcon();
     }
   }
 

src/displayapp/screens/PineTimeStyle.h

@@ -41,6 +41,7 @@ namespace Pinetime {
         uint8_t currentDay = 0;
 
         DirtyValue<uint8_t> batteryPercentRemaining {};
+        DirtyValue<bool> isCharging {};
         DirtyValue<bool> bleState {};
         DirtyValue<std::chrono::time_point<std::chrono::system_clock, std::chrono::nanoseconds>> currentDateTime {};
         DirtyValue<bool> motionSensorOk {};
@@ -58,7 +59,6 @@ namespace Pinetime {
         lv_obj_t* backgroundLabel;
         lv_obj_t* batteryIcon;
         lv_obj_t* bleIcon;
-        lv_obj_t* batteryPlug;
         lv_obj_t* calendarOuter;
         lv_obj_t* calendarInner;
         lv_obj_t* calendarBar1;
@@ -76,6 +76,8 @@ namespace Pinetime {
         Controllers::Settings& settingsController;
         Controllers::MotionController& motionController;
 
+        void SetBatteryIcon();
+
         lv_task_t* taskRefresh;
       };
     }

src/displayapp/screens/WatchFaceAnalog.cpp

@@ -176,11 +176,31 @@ void WatchFaceAnalog::UpdateClock() {
   }
 }
 
+void WatchFaceAnalog::SetBatteryIcon() {
+  auto batteryPercent = batteryPercentRemaining.Get();
+  if (batteryPercent == 100) {
+    lv_obj_set_style_local_text_color(batteryIcon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_GREEN);
+  } else {
+    lv_obj_set_style_local_text_color(batteryIcon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_WHITE);
+  }
+  lv_label_set_text(batteryIcon, BatteryIcon::GetBatteryIcon(batteryPercent));
+}
+
 void WatchFaceAnalog::Refresh() {
+  isCharging = batteryController.IsCharging();
+  if (isCharging.IsUpdated()) {
+    if (isCharging.Get()) {
+      lv_obj_set_style_local_text_color(batteryIcon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_RED);
+      lv_label_set_text(batteryIcon, Symbols::plug);
+    } else {
+      SetBatteryIcon();
+    }
+  }
+  if (!isCharging.Get()) {
     batteryPercentRemaining = batteryController.PercentRemaining();
     if (batteryPercentRemaining.IsUpdated()) {
-    auto batteryPercent = batteryPercentRemaining.Get();
-    lv_label_set_text(batteryIcon, BatteryIcon::GetBatteryIcon(batteryPercent));
+      SetBatteryIcon();
+    }
   }
 
   notificationState = notificationManager.AreNewNotificationsAvailable();

src/displayapp/screens/WatchFaceAnalog.h

@@ -49,6 +49,7 @@ namespace Pinetime {
         uint8_t currentDay = 0;
 
         DirtyValue<uint8_t> batteryPercentRemaining {0};
+        DirtyValue<bool> isCharging {};
         DirtyValue<std::chrono::time_point<std::chrono::system_clock, std::chrono::nanoseconds>> currentDateTime;
         DirtyValue<bool> notificationState {false};
 
@@ -81,6 +82,7 @@ namespace Pinetime {
         Controllers::Settings& settingsController;
 
         void UpdateClock();
+        void SetBatteryIcon();
 
         lv_task_t* taskRefresh;
       };

src/displayapp/screens/WatchFaceDigital.cpp

@@ -102,12 +102,20 @@ WatchFaceDigital::~WatchFaceDigital() {
 }
 
 void WatchFaceDigital::Refresh() {
+  isCharging = batteryController.IsCharging();
+  if (isCharging.IsUpdated()) {
+    lv_label_set_text(batteryPlug, BatteryIcon::GetPlugIcon(isCharging.Get()));
+  }
+
   batteryPercentRemaining = batteryController.PercentRemaining();
   if (batteryPercentRemaining.IsUpdated()) {
     auto batteryPercent = batteryPercentRemaining.Get();
+    if (batteryPercent == 100) {
+      lv_obj_set_style_local_text_color(batteryIcon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_GREEN);
+    } else {
+      lv_obj_set_style_local_text_color(batteryIcon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_WHITE);
+    }
     lv_label_set_text(batteryIcon, BatteryIcon::GetBatteryIcon(batteryPercent));
-    auto isCharging = batteryController.IsCharging() or batteryController.IsPowerPresent();
-    lv_label_set_text(batteryPlug, BatteryIcon::GetPlugIcon(isCharging));
   }
 
   bleState = bleController.IsConnected();

src/displayapp/screens/WatchFaceDigital.h

@@ -44,6 +44,7 @@ namespace Pinetime {
         uint8_t currentDay = 0;
 
         DirtyValue<uint8_t> batteryPercentRemaining {};
+        DirtyValue<bool> isCharging {};
         DirtyValue<bool> bleState {};
         DirtyValue<std::chrono::time_point<std::chrono::system_clock, std::chrono::nanoseconds>> currentDateTime {};
         DirtyValue<bool> motionSensorOk {};