StopWatch: add persistence

# Conflicts:
#	src/displayapp/screens/StopWatch.h

1 files changed, 66 insertions, 0 deletions

diff --git a/src/components/stopwatch/StopWatchController.h b/src/components/stopwatch/StopWatchController.h
new file mode 100644
index 00000000..0aaeb5ca
--- /dev/null
+++ b/src/components/stopwatch/StopWatchController.h
@@ -0,0 +1,66 @@
+#pragma once
+
+#include <FreeRTOS.h>
+#include <timers.h>
+
+#define LAP_CAPACITY 2
+
+namespace Pinetime {
+  namespace System {
+    class SystemTask;
+  }
+  namespace Controllers {
+
+    enum class StopWatchStates { Cleared, Running, Paused };
+
+    struct LapInfo {
+      int count = 0;       // Used to label the lap
+      TickType_t time = 0; // Delta time from beginning of stopwatch
+    };
+
+    class StopWatchController {
+    public:
+      StopWatchController();
+
+      // StopWatch functionality and data
+      void Start();
+      void Pause();
+      void Clear();
+
+      TickType_t GetElapsedTime();
+
+      // Lap functionality
+
+      /// Only the latest laps are stored, the lap count is saved until reset
+      void PushLap();
+
+      /// Returns actual count of stored laps
+      int GetLapNum();
+
+      /// Returns lapCount
+      int GetLapCount();
+
+      /// Indexes into lap history, with 0 being the latest lap.
+      /// If the lap is unavailable, count and time will be 0. If there is a
+      /// real value, count should be above 0
+      LapInfo* LastLap(int lap = 0);
+
+      bool IsRunning();
+      bool IsCleared();
+      bool IsPaused();
+
+    private:
+      // Current state of stopwatch
+      StopWatchStates currentState = StopWatchStates::Cleared;
+      // Start time of current duration
+      TickType_t startTime = 0;
+      // How much time was elapsed before current duration
+      TickType_t timeElapsedPreviously = 0;
+      // Stores lap times
+      LapInfo laps[LAP_CAPACITY];
+      LapInfo emptyLapInfo = {.count = 0, .time = 0};
+      int lapCount = 0;
+      int lapHead = 0;
+    };
+  }
+}