#include <Adafruit_GFX.h>
#include <MCUFRIEND_kbv.h>
MCUFRIEND_kbv tft;
#include <TouchScreen.h>
#define MINPRESSURE 10
#define MAXPRESSURE 40000

const int XP = 27, XM = 32, YP = 33, YM = 14; //ID=0x9341

const int TS_LEFT = -2600, TS_RT = 630, TS_TOP = 700, TS_BOT = -2460;

TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);

Adafruit_GFX_Button on_btn;

int pixel_x, pixel_y;     //Touch_getXY() updates global vars
bool Touch_getXY(void)
{
    pixel_x=0;
    pixel_y=0;
    TSPoint p = ts.getPoint();
   
     pinMode(YP, OUTPUT);      //restore shared pins
    pinMode(XM, OUTPUT);
    digitalWrite(YP, HIGH);   //because TFT control pins
    digitalWrite(XM, HIGH);
 
    p.z=abs(p.z);
    
     if(!(p.z)==0)
     {
      Serial.println(p.z);
     
    
        Serial.print("pixel_x:");
        Serial.print(p.x);
        Serial.print(", pixel_y:");
        Serial.println(p.y);
}
 
    bool pressed = (p.z>10);
   
    if (pressed) 
    {
    pinMode(YP, OUTPUT);      //restore shared pins
    pinMode(XM, OUTPUT);
         
        pixel_x = map(p.y, TS_LEFT, TS_RT, 0, tft.width()); //.kbv makes sense to me
        pixel_y = map(p.x, TS_TOP, TS_BOT, 0, tft.height());
     
        Serial.print("x:");
        Serial.print(pixel_x);
        Serial.print(", y:");
        Serial.println(pixel_y);
        Serial.println("Tocuh Working");
   
        p.z=0;

       
    }
    
    return pressed;
    
}

#define BLACK   0x0000
#define BLUE    0x001F
#define RED     0xF800
#define GREEN   0x07E0
#define CYAN    0x07FF
#define MAGENTA 0xF81F
#define YELLOW  0xFFE0
#define WHITE   0xFFFF
int page=1,Selection =1;
bool down;
unsigned long old =0;
unsigned long current =0;
long interval=0;
void setup(void)
{
    Serial.begin(115200);
    delay(1000);
    uint16_t ID = tft.readID();
    Serial.print("TFT ID = 0x");
    Serial.println(ID, HEX);
    Serial.println("Calibrate for your Touch Panel");
    if (ID == 0xD3D3) ID = 0x9486; // write-only shield
    tft.begin(ID);
    tft.setRotation(1);            //PORTRAIT
    tft.setTextSize(3);
    tft.fillScreen(RED);
    HomePage();
    Selection_1();

}


void loop(void)
{
 
   down = Touch_getXY();
        
    if (down)
    {
      Selection =Selection+1;
      if(Selection>5)
      Selection=1;
    }
    else
    return;
    HomePage();
    if(Selection==1)  
    Selection_1();
    else if(Selection==2)  
    Selection_2();
    else if(Selection==3)  
    Selection_3();
    else if(Selection==4)  
    Selection_4();
    else if(Selection==5)  
    Selection_5();
    delay(1000);
    
}
void HomePage()
{
  tft.setTextColor(BLACK);
  tft.setTextSize(3);
  tft.fillRect(0,0,320,40,GREEN);
  tft.setCursor(10,10);
  tft.print("TeachMe Something");
  tft.fillRect(0,40,320,200,MAGENTA);
  tft.fillRect(280,40,40,200,BLUE);
  tft.setTextColor(WHITE);
  tft.setCursor(10,50);
  tft.print("1.Temperature");
  tft.setCursor(10,90);
  tft.print("2.Humidity");
  tft.setCursor(10,130);
  tft.print("3.Moisture");
  tft.setCursor(10,130);
  tft.print("3.Moisture");
  tft.setCursor(10,170);
  tft.print("4.Light");
  tft.setCursor(10,210);
  tft.print("5.Air Quality");
     
}
void Selection_1()
{
  tft.fillRect(0,40,280,40,RED);
  tft.setCursor(10,50);
  tft.print("1.Temperature");
}
void Selection_2()
{
  tft.fillRect(0,80,280,40,RED);
  tft.setCursor(10,90);
  tft.print("2.Humidity");
}
void Selection_3()
{
  tft.fillRect(0,120,280,40,RED);
  tft.setCursor(10,130);
  tft.print("3.Moisture");
}
void Selection_4()
{
  tft.fillRect(0,160,280,40,RED);
  tft.setCursor(10,170);
  tft.print("4.Light");
}
void Selection_5()
{
  tft.fillRect(0,200,280,40,RED);
  tft.setCursor(10,210);
  tft.print("5.Air Quality");
}