#include <Adafruit_GFX.h>   
#include "Adafruit_ILI9341.h"
#include "beanstalk15.h"
#include "utf8_fix.h"

#define TFT_DC    2
#define TFT_RST   4
#define TFT_CS    5

#define TFT_WHITE  0xFFFF
#define TFT_BLACK  0x0000

GFX_UTF8 tft(TFT_CS, TFT_DC, TFT_RST);

void setup(void) {
  Serial.begin(115200);
  tft.begin();
  tft.fillScreen(TFT_BLACK);
  tft.setFont(&beanstalk15);
  tft.setRotation(0);
  tft.setTextWrap(false);
  tft.setTextColor(TFT_WHITE);
  int x = 2, y = 15;
  int charW = 7;
  int lineH = 17;
  for (uint16_t code = 0x0020; code <= 0x017F; code++) {
    tft.setCursor(x, y);
    if (code < 0x80) {
      tft.write((uint8_t)code);
    } else {
      // UTF-8 encode
      tft.write((uint8_t)(0xC0 | (code >> 6)));
      tft.write((uint8_t)(0x80 | (code & 0x3F)));
    }
    x += charW;
    if (x + charW > 238) {
      x = 2;
      y += lineH;
    }
    if (y > 310) {
      delay(3000);
      tft.fillScreen(TFT_BLACK);
      y = 15;
      x = 2;
    }
  }
}

void loop() {
  delay(500);
}