src/lib/SCREEN/FiveWayButton/FiveWayButton.h

   1 #pragma once
   2
   3 #include "targets.h"
   4
   5 typedef enum
   6 {
   7     INPUT_KEY_LEFT_PRESS = 2,
   8     INPUT_KEY_UP_PRESS = 3,
   9     INPUT_KEY_RIGHT_PRESS = 4,
  10     INPUT_KEY_DOWN_PRESS = 5,
  11     INPUT_KEY_OK_PRESS = 6,
  12     INPUT_KEY_NO_PRESS = 7
  13 } Input_Key_Value_t;
  14
  15 // Number of values in JOY_ADC_VALUES, if defined
  16 // These must be ADC readings for {UP, DOWN, LEFT, RIGHT, ENTER, IDLE}
  17 constexpr size_t N_JOY_ADC_VALUES = 6;
  18
  19 class FiveWayButton
  20 {
  21 private:
  22     int keyInProcess;
  23     uint32_t keyDownStart;
  24     bool isLongPressed;
  25     static uint16_t joyAdcValues[N_JOY_ADC_VALUES];
  26     uint16_t fuzzValues[N_JOY_ADC_VALUES];
  27     void calcFuzzValues();
  28
  29     int readKey();
  30
  31 public:
  32     FiveWayButton();
  33     void init();
  34     void update(int *keyValue, bool *keyLongPressed);
  35
  36     static constexpr uint32_t KEY_DEBOUNCE_MS = 25;
  37     static constexpr uint32_t KEY_LONG_PRESS_MS = 1000;
  38 };