tft_touch_shield_4in.h

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#pragma once
 
// https://www.waveshare.com/4inch-tft-touch-shield.htm
// Maker: Waveshare
// SKU: 13587
 
#include "roo_display/core/device.h"
#include "roo_display/core/orientation.h"
#include "roo_display/driver/ili9486.h"
#include "roo_display/driver/touch_xpt2046.h"
#include "roo_display/hal/spi.h"
#include "roo_display/products/combo_device.h"
 
namespace roo_display::products::waveshare {
 
/// Default touch calibration for the Waveshare 4" shield.
static constexpr TouchCalibration kTft4inDefaultCalibration = TouchCalibration(
    161, 140, 3965, 3837, roo_display::Orientation::RightDown());
 
template <int8_t pinLcdCs, int8_t pinTouchCs, int8_t pinLcdDc,
          int8_t pinLcdReset = -1, int8_t pinLcdBacklit = -1>
/// Waveshare 4" TFT touch shield.
class TftTouchShield4in : public ComboDevice {
 public:
  /// Create device with orientation and SPI instance.
  TftTouchShield4in(Orientation orientation = Orientation(),
                    roo_display::DefaultSpi spi = roo_display::DefaultSpi())
      : spi_(spi), display_(spi_), touch_(spi_) {
    display_.setOrientation(orientation);
  }
 
#if defined(ARDUINO)
  /// Initialize transport using default SPI pins (Arduino).
  void initTransport() { spi_.init(); }
#endif
 
  /// Initialize transport using explicit SPI pins.
  void initTransport(uint8_t sck, uint8_t miso, uint8_t mosi) {
    spi_.init(sck, miso, mosi);
  }
 
  /// Return display device.
  DisplayDevice& display() override { return display_; }
 
  /// Return touch device.
  TouchDevice* touch() override { return &touch_; }
 
  /// Return touch calibration.
  TouchCalibration touch_calibration() override {
    return kTft4inDefaultCalibration;
  }
 
 private:
  roo_display::DefaultSpi spi_;
  roo_display::Ili9486spi<pinLcdCs, pinLcdDc, pinLcdReset> display_;
  roo_display::TouchXpt2046<pinTouchCs> touch_;
};
 
}  // namespace roo_display::products::waveshare