use enum instead of uint32_t for heartrater interval setting

src/components/settings/Settings.h

@@ -50,6 +50,17 @@ namespace Pinetime {
         int colorIndex = 0;
       };
 
+      enum class HeartRateBackgroundMeasurementInterval : uint8_t {
+        Off,
+        Continuous,
+        TenSeconds,
+        ThirtySeconds,
+        OneMinute,
+        FiveMinutes,
+        TenMinutes,
+        ThirtyMinutes,
+      };
+
       Settings(Pinetime::Controllers::FS& fs);
 
       Settings(const Settings&) = delete;
@@ -283,11 +294,11 @@ namespace Pinetime {
         return bleRadioEnabled;
       };
 
-      uint32_t GetHeartRateBackgroundMeasurementInterval() const {
+      HeartRateBackgroundMeasurementInterval GetHeartRateBackgroundMeasurementInterval() const {
         return settings.heartRateBackgroundMeasurementInterval;
       }
 
-      void SetHeartRateBackgroundMeasurementInterval(uint32_t newHeartRateBackgroundMeasurementInterval) {
+      void SetHeartRateBackgroundMeasurementInterval(HeartRateBackgroundMeasurementInterval newHeartRateBackgroundMeasurementInterval) {
         if (newHeartRateBackgroundMeasurementInterval != settings.heartRateBackgroundMeasurementInterval) {
           settingsChanged = true;
         }
@@ -320,8 +331,7 @@ namespace Pinetime {
 
         Controllers::BrightnessController::Levels brightLevel = Controllers::BrightnessController::Levels::Medium;
 
-        // The interval for measuring the heart rate when the screen is off (in seconds)
-        uint32_t heartRateBackgroundMeasurementInterval = 0;
+        HeartRateBackgroundMeasurementInterval heartRateBackgroundMeasurementInterval = HeartRateBackgroundMeasurementInterval::Off;
       };
 
       SettingsData settings;

src/displayapp/screens/settings/SettingHeartRate.cpp

@@ -24,7 +24,7 @@ SettingHeartRate::SettingHeartRate(Pinetime::Applications::DisplayApp* app, Pine
   lv_obj_t* container1 = lv_cont_create(lv_scr_act(), nullptr);
 
   lv_obj_set_style_local_bg_opa(container1, LV_CONT_PART_MAIN, LV_STATE_DEFAULT, LV_OPA_TRANSP);
-  lv_obj_set_style_local_pad_all(container1, LV_CONT_PART_MAIN, LV_STATE_DEFAULT, 10);
+  lv_obj_set_style_local_pad_all(container1, LV_CONT_PART_MAIN, LV_STATE_DEFAULT, 5);
   lv_obj_set_style_local_pad_inner(container1, LV_CONT_PART_MAIN, LV_STATE_DEFAULT, 5);
   lv_obj_set_style_local_border_width(container1, LV_CONT_PART_MAIN, LV_STATE_DEFAULT, 0);
 
@@ -35,6 +35,7 @@ SettingHeartRate::SettingHeartRate(Pinetime::Applications::DisplayApp* app, Pine
 
   lv_obj_t* title = lv_label_create(lv_scr_act(), nullptr);
   lv_label_set_text_static(title, "Backg. Interval");
+  lv_label_set_text(title, "Backg. Interval");
   lv_label_set_align(title, LV_LABEL_ALIGN_CENTER);
   lv_obj_align(title, lv_scr_act(), LV_ALIGN_IN_TOP_MID, 10, 15);
 

src/displayapp/screens/settings/SettingHeartRate.h

@@ -15,7 +15,7 @@ namespace Pinetime {
     namespace Screens {
 
       struct Option {
-        const uint32_t interval;
+        const Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval interval;
         const char* name;
       };
 
@@ -31,14 +31,14 @@ namespace Pinetime {
         Pinetime::Controllers::Settings& settingsController;
 
         static constexpr std::array<Option, 8> options = {{
-          {0, "Off"},
-          {10, "10s"},
-          {30, "30s"},
-          {60, " 1m"},
-          {5 * 60, " 5m"},
-          {10 * 60, "10m"},
-          {30 * 60, "30m"},
-          {60 * 60, " 1h"},
+          {Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::Off, " Off"},
+          {Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::Continuous, "Cont"},
+          {Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::TenSeconds, " 10s"},
+          {Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::ThirtySeconds, " 30s"},
+          {Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::OneMinute, "  1m"},
+          {Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::FiveMinutes, "  5m"},
+          {Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::TenMinutes, " 10m"},
+          {Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::ThirtyMinutes, " 30m"},
         }};
 
         lv_obj_t* cbOption[options.size()];

src/heartratetask/HeartRateTask.cpp

@@ -107,12 +107,12 @@ void HeartRateTask::StartWaiting() {
 }
 
 void HeartRateTask::HandleBackgroundWaiting() {
-  if (settings.GetHeartRateBackgroundMeasurementInterval() == 0) {
-    // stay waiting
+  if (!IsBackgroundMeasurementActivated()) {
     return;
   }
 
-  if (xTaskGetTickCount() - backgroundWaitingStart >= settings.GetHeartRateBackgroundMeasurementInterval() * 1000) {
+  TickType_t ticksSinceWaitingStart = xTaskGetTickCount() - backgroundWaitingStart;
+  if (ticksSinceWaitingStart >= GetHeartRateBackgroundMeasurementIntervalInTicks()) {
     state = States::BackgroundMeasuring;
     StartMeasurement();
   }
@@ -140,13 +140,17 @@ void HeartRateTask::HandleSensorData(int* lastBpm) {
   if (bpm != 0) {
     *lastBpm = bpm;
     controller.Update(Controllers::HeartRateController::States::Running, bpm);
+    if (state == States::Measuring || IsContinuosModeActivated()) {
+      return;
+    }
     if (state == States::BackgroundMeasuring) {
       state = States::BackgroundWaiting;
       StartWaiting();
     }
   }
-  if (bpm == 0 && state == States::BackgroundMeasuring &&
-      xTaskGetTickCount() - measurementStart >= DURATION_UNTIL_BACKGROUND_MEASURMENT_IS_STOPPED) {
+  TickType_t ticksSinceMeasurementStart = xTaskGetTickCount() - measurementStart;
+  if (bpm == 0 && state == States::BackgroundMeasuring && !IsContinuosModeActivated() &&
+      ticksSinceMeasurementStart >= DURATION_UNTIL_BACKGROUND_MEASURMENT_IS_STOPPED) {
     state = States::BackgroundWaiting;
     StartWaiting();
   }
@@ -165,3 +169,32 @@ int HeartRateTask::CurrentTaskDelay() {
       return portMAX_DELAY;
   }
 }
+
+uint32_t HeartRateTask::GetHeartRateBackgroundMeasurementIntervalInTicks() {
+  switch (settings.GetHeartRateBackgroundMeasurementInterval()) {
+    case Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::TenSeconds:
+      return 10 * 1000;
+    case Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::ThirtySeconds:
+      return 30 * 1000;
+    case Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::OneMinute:
+      return 60 * 1000;
+    case Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::FiveMinutes:
+      return 5 * 60 * 1000;
+    case Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::TenMinutes:
+      return 10 * 60 * 1000;
+    case Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::ThirtyMinutes:
+      return 30 * 60 * 1000;
+    default:
+      return 0;
+  }
+}
+
+bool HeartRateTask::IsContinuosModeActivated() {
+  return settings.GetHeartRateBackgroundMeasurementInterval() ==
+         Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::Continuous;
+}
+
+bool HeartRateTask::IsBackgroundMeasurementActivated() {
+  return settings.GetHeartRateBackgroundMeasurementInterval() !=
+         Pinetime::Controllers::Settings::HeartRateBackgroundMeasurementInterval::Off;
+}

src/heartratetask/HeartRateTask.h

@@ -39,6 +39,10 @@ namespace Pinetime {
       void HandleSensorData(int* lastBpm);
       int CurrentTaskDelay();
 
+      uint32_t GetHeartRateBackgroundMeasurementIntervalInTicks();
+      bool IsContinuosModeActivated();
+      bool IsBackgroundMeasurementActivated();
+
       TaskHandle_t taskHandle;
       QueueHandle_t messageQueue;
       States state = States::Running;