InfiniTime/src/displayapp/screens/StopWatch.h

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#pragma once
#include "displayapp/screens/Screen.h"
#include "components/datetime/DateTimeController.h"
#include "displayapp/LittleVgl.h"
#include <FreeRTOS.h>
#include "portmacro_cmsis.h"
#include <array>
#include "systemtask/SystemTask.h"
namespace Pinetime::Applications::Screens {
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enum class States { Init, Running, Halted };
struct TimeSeparated_t {
int mins;
int secs;
int hundredths;
};
// A simple buffer to hold the latest two laps
template <int N> struct LapTextBuffer_t {
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LapTextBuffer_t() : buffer {}, currentSize {}, capacity {N}, head {-1} {
}
void addLaps(const TimeSeparated_t& timeVal) {
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head++;
head %= capacity;
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buffer[head] = timeVal;
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if (currentSize < capacity) {
currentSize++;
}
}
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void clearBuffer() {
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buffer = {};
currentSize = 0;
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head = -1;
}
TimeSeparated_t* operator[](std::size_t idx) {
// Sanity check for out-of-bounds
if (idx >= 0 && idx < capacity) {
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if (idx < currentSize) {
// This transformation is to ensure that head is always pointing to index 0.
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const auto transformed_idx = (head - idx) % capacity;
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return (&buffer[transformed_idx]);
}
}
return nullptr;
}
private:
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std::array<TimeSeparated_t, N> buffer;
uint8_t currentSize;
uint8_t capacity;
int8_t head;
};
class StopWatch : public Screen {
public:
StopWatch(DisplayApp* app, System::SystemTask& systemTask);
~StopWatch() override;
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void Refresh() override;
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void playPauseBtnEventHandler(lv_event_t event);
void stopLapBtnEventHandler(lv_event_t event);
bool OnButtonPushed() override;
void reset();
void start();
void pause();
private:
Pinetime::System::SystemTask& systemTask;
TickType_t timeElapsed;
States currentState;
TickType_t startTime;
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TickType_t oldTimeElapsed;
TimeSeparated_t currentTimeSeparated; // Holds Mins, Secs, millisecs
LapTextBuffer_t<2> lapBuffer;
int lapNr = 0;
lv_obj_t *time, *msecTime, *btnPlayPause, *btnStopLap, *txtPlayPause, *txtStopLap;
lv_obj_t *lapOneText, *lapTwoText;
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lv_task_t* taskRefresh;
};
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}