scott/InfiniTime
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Added some comments for clarity. Ready for review. Tested.

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This commit is contained in:
panky-codes 2021-03-13 14:53:37 +01:00
parent 02824d0671
commit d409643b8e
2 changed files with 15 additions and 3 deletions
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4
src/displayapp/screens/StopWatch.h
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@ -21,6 +21,7 @@ namespace Pinetime::Applications::Screens {
int msecs;
};
// A simple buffer to hold the latest two laps
template <int N> struct LapTextBuffer_t {
LapTextBuffer_t() : _arr {}, currentSz {}, capacity {N}, head {-1} {
}
@ -41,11 +42,11 @@ namespace Pinetime::Applications::Screens {
head = -1;
}
// Optional return type would be much more appropriate here
TimeSeparated_t* operator[](std::size_t idx) {
// Sanity check for out-of-bounds
if (idx >= 0 && idx < capacity) {
if (idx < currentSz) {
// This transformation is to ensure that head is always pointing to index 0.
const auto transformed_idx = (head - idx) % capacity;
return (&_arr[transformed_idx]);
}
@ -66,7 +67,6 @@ namespace Pinetime::Applications::Screens {
~StopWatch() override;
bool Refresh() override;
bool OnButtonPushed() override;
bool OnTouchEvent(uint16_t x, uint16_t y) override;
void playPauseBtnEventHandler(lv_event_t event);
void stopLapBtnEventHandler(lv_event_t event);