#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128  // OLED 디스플레이의 너비
#define SCREEN_HEIGHT 64  // OLED 디스플레이의 높이
#define OLED_RESET    -1  // OLED 리셋 핀 (하드웨어 리셋 사용하지 않음)

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

const uint8_t Roboto_Bold7pt7bBitmaps[] PROGMEM = {
  0x00, 0xFF, 0xFC, 0x3C, 0xFF, 0xBA, 0x12, 0x16, 0x16, 0x7F, 0x7F, 0x34,
  0x24, 0xFE, 0x2C, 0x28, 0x68, 0x10, 0x71, 0xF6, 0x6C, 0x3C, 0x1E, 0x06,
  0xC7, 0x9B, 0xF1, 0x81, 0x00, 0xE0, 0x48, 0x24, 0x9E, 0x86, 0xC0, 0x40,
  0x48, 0x2F, 0x2D, 0xB6, 0xC1, 0xC0, 0x38, 0x1E, 0x19, 0x0C, 0x83, 0xC1,
  0xC1, 0xE7, 0xDA, 0xC7, 0x3F, 0x8F, 0xE0, 0xF0, 0x23, 0x6C, 0xCC, 0xCC,
  0xCC, 0xCC, 0x62, 0x30, 0x84, 0x62, 0x33, 0x33, 0x33, 0x32, 0x64, 0x80,
  0x32, 0xEF, 0xCC, 0x58, 0x18, 0x30, 0x67, 0xFF, 0xE3, 0x06, 0x0C, 0x6D,
  0x60, 0xFF, 0xF0, 0x1C, 0x61, 0x8C, 0x30, 0xC6, 0x18, 0x61, 0x0C, 0x30,
  0x7B, 0xFC, 0xF3, 0xCF, 0x3C, 0xF3, 0xCF, 0xF7, 0x80, 0x1F, 0xF3, 0x33,
  0x33, 0x33, 0x30, 0x7B, 0xFC, 0xC3, 0x0C, 0x63, 0x9C, 0x63, 0xFF, 0xC0,
  0x79, 0xFB, 0x30, 0x61, 0xC7, 0x03, 0x06, 0xCF, 0xF9, 0xE0, 0x0E, 0x0E,
  0x1E, 0x1E, 0x36, 0x66, 0x66, 0xFF, 0xFF, 0x06, 0x06, 0xFF, 0xFC, 0x30,
  0xFF, 0x30, 0xC3, 0xCF, 0xF7, 0x80, 0x3C, 0xF3, 0x06, 0x0F, 0xDF, 0xB3,
  0x63, 0xCD, 0xF9, 0xE0, 0xFF, 0xFC, 0x18, 0x60, 0xC3, 0x06, 0x0C, 0x18,
  0x30, 0x60, 0x79, 0xFB, 0x36, 0x6F, 0xCF, 0x33, 0x63, 0xCD, 0xF9, 0xE0,
  0x7B, 0xFC, 0xF3, 0xCF, 0xFF, 0xC3, 0x0D, 0xF7, 0x80, 0xF0, 0x0F, 0xF0,
  0x0F, 0xE0, 0x04, 0x7F, 0x38, 0x3C, 0x30, 0x40, 0xFF, 0xF0, 0x3F, 0xFC,
  0x83, 0x83, 0xC7, 0x7B, 0x08, 0x00, 0x79, 0xFB, 0x18, 0x30, 0xC3, 0x86,
  0x18, 0x00, 0x60, 0xC0, 0x0F, 0x81, 0x04, 0x20, 0x26, 0x02, 0x47, 0x34,
  0xF9, 0xC9, 0x9D, 0x91, 0xD9, 0x35, 0x92, 0x4F, 0xC6, 0x00, 0x30, 0x01,
  0xF8, 0x1C, 0x0E, 0x07, 0x07, 0xC3, 0x61, 0xB1, 0xD8, 0xFE, 0x7F, 0x31,
  0xB0, 0x60, 0xFD, 0xFF, 0x1E, 0x3F, 0xDF, 0xBF, 0xE3, 0xC7, 0xFF, 0xF0,
  0x3C, 0xFF, 0x1E, 0x3C, 0x18, 0x30, 0x63, 0xC6, 0xFC, 0xF0, 0xF8, 0xFE,
  0xC6, 0xC6, 0xC3, 0xC3, 0xC3, 0xC6, 0xC6, 0xFE, 0xF8, 0xFF, 0xFC, 0x30,
  0xFF, 0xFC, 0x30, 0xC3, 0xFF, 0xC0, 0xFF, 0xFC, 0x30, 0xC3, 0xFC, 0x30,
  0xC3, 0x0C, 0x00, 0x3C, 0x7E, 0xC6, 0xC0, 0xC0, 0xC0, 0xCF, 0xC3, 0xC3,
  0x7E, 0x3C, 0xC3, 0xC3, 0xC3, 0xC3, 0xFF, 0xFF, 0xFF, 0xC3, 0xC3, 0xC3,
  0xC3, 0xFF, 0xFF, 0xFC, 0x06, 0x0C, 0x18, 0x30, 0x60, 0xC1, 0x83, 0xC6,
  0xF8, 0xE0, 0xC7, 0xCE, 0xCC, 0xD8, 0xF8, 0xF0, 0xF8, 0xDC, 0xCC, 0xCE,
  0xC7, 0xC3, 0x0C, 0x30, 0xC3, 0x0C, 0x30, 0xC3, 0xFF, 0xC0, 0xE1, 0xF8,
  0x7E, 0x1F, 0xC7, 0xF3, 0xF4, 0xFD, 0xAF, 0x7B, 0xCE, 0xF3, 0x3C, 0xCC,
  0xC3, 0xE3, 0xE3, 0xF3, 0xF3, 0xDB, 0xCB, 0xCF, 0xC7, 0xC7, 0xC3, 0x3C,
  0x7E, 0xC7, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0xFD, 0xFF,
  0x1E, 0x3C, 0x7F, 0xFF, 0x60, 0xC1, 0x83, 0x00, 0x3C, 0x3F, 0x31, 0xD8,
  0x6C, 0x36, 0x1B, 0x0D, 0x86, 0xC7, 0x3F, 0x0F, 0xC0, 0x30, 0xFC, 0xFE,
  0xC6, 0xC6, 0xCE, 0xFC, 0xFE, 0xC6, 0xC6, 0xC6, 0xC7, 0x79, 0xFF, 0x1E,
  0x0E, 0x0F, 0x83, 0x83, 0xC7, 0xFD, 0xF0, 0xFF, 0xFF, 0x18, 0x18, 0x18,
  0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3, 0xC3,
  0xC3, 0xC3, 0xC7, 0x7E, 0x3C, 0xC1, 0xB1, 0x98, 0xCC, 0x66, 0x21, 0xB0,
  0xD8, 0x6C, 0x1C, 0x0E, 0x07, 0x00, 0xC6, 0x3C, 0x63, 0x67, 0x36, 0x72,
  0x6F, 0x66, 0xD6, 0x29, 0xE3, 0x9E, 0x39, 0xC3, 0x8C, 0x30, 0xC0, 0xE3,
  0xB1, 0x8D, 0x86, 0xC1, 0xC0, 0xE0, 0x70, 0x6C, 0x36, 0x31, 0xB8, 0xE0,
  0xC3, 0xB1, 0x98, 0xC6, 0xC3, 0x60, 0xE0, 0x70, 0x30, 0x18, 0x0C, 0x06,
  0x00, 0xFF, 0xF1, 0xC6, 0x30, 0xC6, 0x18, 0xC3, 0xFF, 0xC0, 0xFB, 0x6D,
  0xB6, 0xDB, 0x6F, 0xC0, 0xC1, 0x86, 0x18, 0x30, 0xC3, 0x06, 0x18, 0x60,
  0xC3, 0xED, 0xB6, 0xDB, 0x6D, 0xBF, 0xC0, 0x30, 0xC7, 0x9A, 0x4B, 0x30,
  0xFF, 0xF0, 0xE3, 0x3C, 0xFD, 0x99, 0xF6, 0x78, 0xFF, 0xBB, 0xC3, 0x0C,
  0x3E, 0xFF, 0x3C, 0xF3, 0xCF, 0xFF, 0x80, 0x3C, 0xFD, 0x9E, 0x0C, 0x0C,
  0xDF, 0x9E, 0x06, 0x0C, 0x19, 0xF7, 0xEC, 0xF1, 0xE3, 0x66, 0xFC, 0xF8,
  0x3C, 0xF9, 0x9F, 0xFF, 0xEC, 0x1F, 0x9E, 0x3B, 0xD9, 0xFF, 0xB1, 0x8C,
  0x63, 0x18, 0x3E, 0xFD, 0x9E, 0x3C, 0x6C, 0xDF, 0x9F, 0x06, 0xFD, 0xF0,
  0xC3, 0x0C, 0x3E, 0xFF, 0x3C, 0xF3, 0xCF, 0x3C, 0xC0, 0xF3, 0xFF, 0xFC,
  0x33, 0x03, 0x33, 0x33, 0x33, 0x33, 0xFE, 0xC1, 0x83, 0x06, 0x6D, 0x9F,
  0x3C, 0x78, 0xD9, 0xBB, 0x38, 0xFF, 0xFF, 0xFC, 0xF9, 0xBF, 0xFC, 0xCF,
  0x33, 0xCC, 0xF3, 0x3C, 0xCF, 0x33, 0xFB, 0xFC, 0xF3, 0xCF, 0x3C, 0xF3,
  0x3C, 0xFD, 0x9E, 0x3C, 0x6C, 0xDF, 0x9E, 0xFB, 0xFC, 0xF3, 0xCF, 0x3F,
  0xFE, 0xC3, 0x0C, 0x00, 0x3E, 0xFD, 0x9E, 0x3C, 0x6C, 0xDF, 0x9F, 0x06,
  0x0C, 0x18, 0xFF, 0xCC, 0xCC, 0xCC, 0x38, 0xF9, 0x9B, 0x81, 0xD8, 0xDB,
  0x9E, 0x63, 0x3D, 0xE6, 0x31, 0x8C, 0x71, 0xC0, 0xCF, 0x3C, 0xF3, 0xCF,
  0x3F, 0xDF, 0xC6, 0xCD, 0xB3, 0x62, 0xC7, 0x0E, 0x1C, 0xCC, 0xD3, 0x36,
  0xC9, 0xBA, 0x7F, 0x9C, 0xE3, 0x38, 0xCC, 0xEE, 0xD8, 0xF1, 0xC3, 0x87,
  0x9B, 0x73, 0xC6, 0xCD, 0xB3, 0x62, 0xC7, 0x0E, 0x0C, 0x30, 0xE1, 0x80,
  0xFF, 0xE3, 0x8C, 0x63, 0x8F, 0xFF, 0x13, 0x22, 0x26, 0xEE, 0x62, 0x22,
  0x31, 0xFF, 0xFF, 0xFF, 0xC0, 0x8C, 0x66, 0x66, 0x33, 0x66, 0x66, 0x6C,
  0xF3, 0xFE, 0x30 };

const GFXglyph Roboto_Bold7pt7bGlyphs[] PROGMEM = {
  {     0,   1,   1,   3,    0,    0 },   // 0x20 ' '
  {     1,   2,  11,   4,    1,  -10 },   // 0x21 '!'
  {     4,   4,   4,   6,    1,  -10 },   // 0x22 '"'
  {     6,   8,  11,   8,    0,  -10 },   // 0x23 '#'
  {    17,   7,  13,   8,    1,  -10 },   // 0x24 '$'
  {    29,   9,  11,  10,    1,  -10 },   // 0x25 '%'
  {    42,   9,  11,   9,    0,  -10 },   // 0x26 '&'
  {    55,   1,   4,   3,    1,  -10 },   // 0x27 '''
  {    56,   4,  15,   5,    1,  -11 },   // 0x28 '('
  {    64,   4,  15,   5,    0,  -11 },   // 0x29 ')'
  {    72,   6,   5,   6,    0,   -7 },   // 0x2A '*'
  {    76,   7,   8,   8,    0,   -8 },   // 0x2B '+'
  {    83,   3,   4,   4,    0,   -1 },   // 0x2C ','
  {    85,   4,   2,   6,    1,   -5 },   // 0x2D '-'
  {    86,   2,   2,   4,    1,   -1 },   // 0x2E '.'
  {    87,   6,  12,   6,    0,  -10 },   // 0x2F '/'
  {    96,   6,  11,   8,    1,  -10 },   // 0x30 '0'
  {   105,   4,  11,   8,    1,  -10 },   // 0x31 '1'
  {   111,   6,  11,   8,    1,  -10 },   // 0x32 '2'
  {   120,   7,  11,   8,    1,  -10 },   // 0x33 '3'
  {   130,   8,  11,   8,    0,  -10 },   // 0x34 '4'
  {   141,   6,  11,   8,    1,  -10 },   // 0x35 '5'
  {   150,   7,  11,   8,    1,  -10 },   // 0x36 '6'
  {   160,   7,  11,   8,    0,  -10 },   // 0x37 '7'
  {   170,   7,  11,   8,    1,  -10 },   // 0x38 '8'
  {   180,   6,  11,   8,    1,  -10 },   // 0x39 '9'
  {   189,   2,   8,   4,    1,   -7 },   // 0x3A ':'
  {   191,   2,  10,   4,    1,   -7 },   // 0x3B ';'
  {   194,   6,   7,   7,    0,   -6 },   // 0x3C '<'
  {   200,   6,   5,   8,    1,   -6 },   // 0x3D '='
  {   204,   6,   7,   7,    1,   -6 },   // 0x3E '>'
  {   210,   7,  11,   7,    0,  -10 },   // 0x3F '?'
  {   220,  12,  14,  12,    0,  -10 },   // 0x40 '@'
  {   241,   9,  11,   9,    0,  -10 },   // 0x41 'A'
  {   254,   7,  11,   9,    1,  -10 },   // 0x42 'B'
  {   264,   7,  11,   9,    1,  -10 },   // 0x43 'C'
  {   274,   8,  11,   9,    1,  -10 },   // 0x44 'D'
  {   285,   6,  11,   8,    1,  -10 },   // 0x45 'E'
  {   294,   6,  11,   8,    1,  -10 },   // 0x46 'F'
  {   303,   8,  11,   9,    1,  -10 },   // 0x47 'G'
  {   314,   8,  11,  10,    1,  -10 },   // 0x48 'H'
  {   325,   2,  11,   4,    1,  -10 },   // 0x49 'I'
  {   328,   7,  11,   8,    0,  -10 },   // 0x4A 'J'
  {   338,   8,  11,   9,    1,  -10 },   // 0x4B 'K'
  {   349,   6,  11,   8,    1,  -10 },   // 0x4C 'L'
  {   358,  10,  11,  12,    1,  -10 },   // 0x4D 'M'
  {   372,   8,  11,  10,    1,  -10 },   // 0x4E 'N'
  {   383,   8,  11,  10,    1,  -10 },   // 0x4F 'O'
  {   394,   7,  11,   9,    1,  -10 },   // 0x50 'P'
  {   404,   9,  12,  10,    1,  -10 },   // 0x51 'Q'
  {   418,   8,  11,   9,    1,  -10 },   // 0x52 'R'
  {   429,   7,  11,   9,    1,  -10 },   // 0x53 'S'
  {   439,   8,  11,   8,    0,  -10 },   // 0x54 'T'
  {   450,   8,  11,  10,    1,  -10 },   // 0x55 'U'
  {   461,   9,  11,   9,    0,  -10 },   // 0x56 'V'
  {   474,  12,  11,  12,    0,  -10 },   // 0x57 'W'
  {   491,   9,  11,   9,    0,  -10 },   // 0x58 'X'
  {   504,   9,  11,   9,    0,  -10 },   // 0x59 'Y'
  {   517,   6,  11,   8,    1,  -10 },   // 0x5A 'Z'
  {   526,   3,  14,   4,    1,  -11 },   // 0x5B '['
  {   532,   6,  12,   6,    0,  -10 },   // 0x5C '\'
  {   541,   3,  14,   4,    0,  -11 },   // 0x5D ']'
  {   547,   6,   6,   6,    0,  -10 },   // 0x5E '^'
  {   552,   6,   2,   6,    0,    1 },   // 0x5F '_'
  {   554,   4,   2,   5,    0,  -10 },   // 0x60 '`'
  {   555,   7,   8,   8,    0,   -7 },   // 0x61 'a'
  {   562,   6,  11,   8,    1,  -10 },   // 0x62 'b'
  {   571,   7,   8,   7,    0,   -7 },   // 0x63 'c'
  {   578,   7,  11,   8,    0,  -10 },   // 0x64 'd'
  {   588,   7,   8,   7,    0,   -7 },   // 0x65 'e'
  {   595,   5,  11,   5,    0,  -10 },   // 0x66 'f'
  {   602,   7,  11,   8,    0,   -7 },   // 0x67 'g'
  {   612,   6,  11,   8,    1,  -10 },   // 0x68 'h'
  {   621,   2,  11,   4,    1,  -10 },   // 0x69 'i'
  {   624,   4,  14,   4,   -1,  -10 },   // 0x6A 'j'
  {   631,   7,  11,   8,    1,  -10 },   // 0x6B 'k'
  {   641,   2,  11,   4,    1,  -10 },   // 0x6C 'l'
  {   644,  10,   8,  12,    1,   -7 },   // 0x6D 'm'
  {   654,   6,   8,   8,    1,   -7 },   // 0x6E 'n'
  {   660,   7,   8,   8,    0,   -7 },   // 0x6F 'o'
  {   667,   6,  11,   8,    1,   -7 },   // 0x70 'p'
  {   676,   7,  11,   8,    0,   -7 },   // 0x71 'q'
  {   686,   4,   8,   5,    1,   -7 },   // 0x72 'r'
  {   690,   7,   8,   7,    0,   -7 },   // 0x73 's'
  {   697,   5,  10,   5,    0,   -9 },   // 0x74 't'
  {   704,   6,   8,   8,    1,   -7 },   // 0x75 'u'
  {   710,   7,   8,   7,    0,   -7 },   // 0x76 'v'
  {   717,  10,   8,  10,    0,   -7 },   // 0x77 'w'
  {   727,   7,   8,   7,    0,   -7 },   // 0x78 'x'
  {   734,   7,  11,   7,    0,   -7 },   // 0x79 'y'
  {   744,   6,   8,   7,    1,   -7 },   // 0x7A 'z'
  {   750,   4,  14,   5,    0,  -11 },   // 0x7B '{'
  {   757,   2,  13,   4,    1,  -10 },   // 0x7C '|'
  {   761,   4,  14,   5,    0,  -11 },   // 0x7D '}'
  {   768,   7,   3,   9,    1,   -5 } }; // 0x7E '~'

const GFXfont Roboto_Bold7pt7b PROGMEM = {
  (uint8_t  *)Roboto_Bold7pt7bBitmaps,
  (GFXglyph *)Roboto_Bold7pt7bGlyphs,
  0x20, 0x7E, 16 };

byte customChar[] = {
0x0040,
0x7C40,
0x0640,
0x0440,
0x0440,
0x0440,
0x0840,
0x1040,
0x2040,
0xC040,
0x0040,
0x0040,
0x0040,
};
int16_t x2[2],y2[2]; 
uint16_t w2[2],h2[2]; 
const int cursorX[2] = {30, 101};
const int cursorY[2] = {30, 37}; 
const char text2[2][6] = {
  "88.8",
  "0.8"
}; 
int16_t x,y; 
uint16_t w,h; 
const char *text = "88.8";
float num = 56.2;
float num2 = 0.2;

void setup() {
  Serial.begin(9600);
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // I2C 주소가 0x3C인 경우
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }

  display.clearDisplay();
  display.setTextSize(1);                    // 텍스트 크기 설정
  display.setFont(&Roboto_Bold7pt7b);
  display.setTextColor(SSD1306_WHITE);       // 텍스트 색상: 검정색
  display.setCursor(0, 0);                 // 텍스트 커서 위치 설정

  // 텍스트가 들어갈 하얀색 배경 박스 그리기
  uint8_t padding = 1;  // 여유 공간 (4픽셀씩 추가)
  for(int i = 0; i<2; i++){
    display.getTextBounds(text2[i], cursorX[i], cursorY[i],  &x2[i], &y2[i], &w2[i], &h2[i]);
    x2[i] -= padding; // 좌측 여유 공간
  y2[i] -= padding; // 상단 여유 공간
  w2[i] += 2 * padding; // 좌우 여유 공간
  h2[i] += 2 * padding; // 상하 여유 공간
  }
  //display.getTextBounds(text, 80, 37,  &x, &y, &w, &h); // int16_t 과 uint16_t만 가능
  Serial.print("x[0]:");Serial.print(x2[0]);
  Serial.print("  y[0]:");Serial.print(y2[0]);
  Serial.print("  w[0]:");Serial.print(w2[0]);
  Serial.print("  h[0]: ");Serial.println(h2[0]);
  /*Serial.print("x:");Serial.print(x);
  Serial.print("  y:");Serial.print(y);
  Serial.print("  w:");Serial.print(w);
  Serial.print("  h: ");Serial.println(h);*/
  //uint8_t padding = 1;  // 여유 공간 (4픽셀씩 추가)
  x -= padding; // 좌측 여유 공간
  y -= padding; // 상단 여유 공간
  w += 2 * padding; // 좌우 여유 공간
  h += 2 * padding; // 상하 여유 공간
}

void loop() {
  //display.clearDisplay();  
  display.setTextSize(1);                    
  //display.setFont(&Roboto_Bold7pt7b);
  //display.setTextColor(SSD1306_WHITE);        
  //display.fillRect(x2[0], y2[0], w2[0], h2[0], SSD1306_WHITE);
  //display.fillRect(x, y, w, h, SSD1306_WHITE);
  display.fillRect(30,19,29,13,1);
  display.setTextColor(SSD1306_BLACK);
  display.setCursor(30, 30);
  display.print(num); 
  //display.display(); 
  delay(1000);
  display.fillRect(x2[0], y2[0], w2[0], h2[0], SSD1306_BLACK);
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(30, 30);
  display.print(num,1);
 
  display.drawBitmap(10, 10, customChar, 8, 8, SSD1306_WHITE);
  display.display();
  delay(1000);
  // 메인 코드 루프
}