// Coded by Bodmer 10/2/18, see license in root directory.
 // This is part of the TFT_eSPI class and is associated with the Touch Screen handlers

 public:

  uint8_t  getTouchRaw(uint16_t *x, uint16_t *y);
  uint16_t getTouchRawZ(void);
  uint8_t  getTouch(uint16_t *x, uint16_t *y, uint16_t threshold = 600);

  void     calibrateTouch(uint16_t *data, uint32_t color_fg, uint32_t color_bg, uint8_t size);
  void     setTouch(uint16_t *data);

 private:

  inline void spi_begin_touch() __attribute__((always_inline));
  inline void spi_end_touch()   __attribute__((always_inline));

           // These are associated with the Touch Screen handlers
  uint8_t  validTouch(uint16_t *x, uint16_t *y, uint16_t threshold = 600);
           // Initialise with example calibration values so processor does not crash if setTouch() not called in setup()
  uint16_t touchCalibration_x0 = 300, touchCalibration_x1 = 3600, touchCalibration_y0 = 300, touchCalibration_y1 = 3600;
  uint8_t  touchCalibration_rotate = 1, touchCalibration_invert_x = 2, touchCalibration_invert_y = 0;
  uint32_t _pressTime;
  uint16_t _pressX, _pressY;