#include <Adafruit_GFX.h>    // Core graphics library
#include <MCUFRIEND_kbv.h>   // Hardware-specific library
MCUFRIEND_kbv tft;

#include <Fonts/FreeSans9pt7b.h>
#include <Fonts/FreeSans12pt7b.h>
#include <Fonts/FreeSerif12pt7b.h>

#include <FreeDefaultFonts.h>

#define BLACK   0x0000
#define RED     0xF800
#define GREEN   0x07E0
#define WHITE   0xFFFF
#define GREY    0x8410

int brightnessread = 0;

int cat = 0;
int resultsread1 = 0;

void setup(void)
{
    Serial.begin(9600);
    uint16_t ID = tft.readID();
    if (ID == 0xD3) ID = 0x9481;
    tft.begin(ID);
    tft.setRotation(1);
    tft.WriteCmdData(0x51, 0x00);
    //resultsread1 = tft.readReg(0x52);
    //writeData(0x51);
    
    
}

void loop(void)
{
 
    //brightnessread = readReg32(cat);
    Serial.println(resultsread1,BIN);
    
    tft.fillScreen(BLACK);
    tft.WriteCmdData(0x51, 0x0000);
    showmsgXY(20, 10, 1, NULL, "System x1");
    showmsgXY(20, 24, 2, NULL, "System x2");
    showmsgXY(20, 60, 1, &FreeSans9pt7b, "FreeSans9pt7b");
    showmsgXY(20, 80, 1, &FreeSans12pt7b, "FreeSans12pt7b");
    showmsgXY(20, 100, 1, &FreeSerif12pt7b, "FreeSerif12pt7b");
    showmsgXY(20, 120, 1, &FreeSmallFont, "FreeSmallFont");
    showmsgXY(5, 180, 1, &FreeSevenSegNumFont, "01234");
    showmsgXY(5, 190, 1, NULL, "System Font is drawn from topline");
    tft.setTextColor(RED, GREY);
    tft.setTextSize(2);
    tft.setCursor(0, 220);
    tft.print("7x5 can overwrite");
    delay(1000);
    tft.setCursor(0, 220);
    tft.print("if background set");
    delay(1000);
    showmsgXY(5, 260, 1, &FreeSans9pt7b, "Free Fonts from baseline");
    showmsgXY(5, 285, 1, &FreeSans9pt7b, "Free Fonts transparent");
    delay(1000);
    showmsgXY(5, 285, 1, &FreeSans9pt7b, "Free Fonts XXX");
    delay(1000);
    showmsgXY(5, 310, 1, &FreeSans9pt7b, "erase backgnd with fillRect()");
    delay(10000);
}

void showmsgXY(int x, int y, int sz, const GFXfont *f, const char *msg)
{
    int16_t x1, y1;
    uint16_t wid, ht;
    tft.drawFastHLine(0, y, tft.width(), WHITE);
    tft.setFont(f);
    tft.setCursor(x, y);
    tft.setTextColor(GREEN);
    tft.setTextSize(sz);
    tft.print(msg);
    delay(1000);
}


uint32_t readReg32(uint16_t reg)
{
    uint16_t h = tft.readReg(reg, 0);
    uint16_t l = tft.readReg(reg, 1);
    return ((uint32_t) h << 16) | (l);
}