#include <Adafruit_GFX.h>     // Für die Grafiken
#include <SPI.h>              // das wird gebraucht fürs Display
#include <Adafruit_ILI9341.h> // Für das Display
#include <Adafruit_FT6206.h>  // Für den Touchscreen
#include <Arduino.h>          // das wird gebraucht für FT6206
#include <Fonts/FreeSansBold9pt7b.h>
#include <InterpolationLib.h>
#include <EEPROM.h>

// The FT6206 uses hardware I2C (SCL/SDA)
Adafruit_FT6206 ctp = Adafruit_FT6206();

#define INTROTEXT1 "Pedis"
#define INTROTEXT2 "Wasserstand"
#define VERSIONTEXT "V0.1 02.06.2025"

#define TFT_CS    15
#define TFT_DC    2
//#define TFT_RST   4
#define MESSPIN 34

/*____Calibrate Touchscreen_____*/
#define MINPRESSURE 1     // minimum required force for touch event
#define TS_MINX 370
#define TS_MINY 470
#define TS_MAXX 3700
#define TS_MAXY 3600
/*______End of Calibration______*/

//Hauptschirm Button
#define DISPHEIGHT 320
#define DISPWIDTH 240
#define MAINBUTTONX 160
#define MAINBUTTONW 70
#define MAINBUTTONY 265
#define MAINBUTTONH 45

//Hauptschirm Messanzeigen
#define LITERANZX 60
#define LITERANZY 100
#define PROZENTANZX 80
#define PROZENTANZY 160
#define MWANZX 25
#define MWTANZY 280

//Hauptschirm Prozent-Bar
#define BARPROZX 10
#define BARPROZY 70
#define BARPROZW 20
#define BARPROZH 200


Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC /*, TFT_RST*/);

//iaEE.. nur temporär, bis es EEprom gibt, danach lesen aus EEprom  
int16_t iaEEpromEinst[8] = {
  200, 30, 15, 2000}; //Volumen, Warnung, Alarm, DelayIntro

int16_t iaEEpromKalibLiter[10] = {
5,  55,  85,  100,  0,  0,  0,  0,  0,  0};

int16_t iaEEpromKalibMessw[10] = {
0, 600, 800, 1000, 0, 0, 0, 0, 7689, 9754};
 
 // Arbeitswerte, aus EEprom kopiert
int16_t iaEinst[8];

#define DISPNORM 0
#define DISPEINST 1
#define DISPKALLITER 3
#define DISPKALMESSWERT 4
#define DISPTAST 5
#define DISPTASTL 6
byte DisplayMode;

// Interpolation xValues: Messwerte yValues: Liter
int16_t numValues;
double xValues[10]; // = { 0, 600, 800, 1000, 400, 600, 700, 800, 900, 1000 };
double yValues[10]; // = { 5,  55,  85,  100,  25,  30,  40,  50,  70,  100 };

int16_t intMesswert;
int16_t intAltMesswert;
float fLiter;
float fProzent;
bool bTrigAnzeigeMesswerte;
byte byEinstEdit; //Nummer der editierten Einstellung (1..7) 0: Kopfzeile (ESC)

//Touch Tastatur-Eingabe
long Number; 
bool result = false;	
bool cancel = false;
bool Touch_pressed = false;
TS_Point p; //Koordinaten
int16_t X,Y; //Touch Koordinaten

void setup() {
  Serial.begin(115200);
//  Serial.println("Cap Touch Paint!");
  pinMode(MESSPIN, INPUT);

  Wire.setPins(21, 22); // redefine first I2C port to be on pins 21/22
  tft.begin();

  if (! ctp.begin(40)) {  // pass in 'sensitivity' coefficient
    Serial.println("Couldn't start FT6206 touchscreen controller");
    while (1);
  }
//  Serial.println("Capacitive touchscreen started");

  tft.setRotation(0);
  SchirmIntro();
  int16_t	x1;
	int16_t y1;
	uint16_t 	w;
	uint16_t 	h;
  tft.getTextBounds("das 1233",20,40,&x1,&y1,&w,&h);
  Serial.print(String(x1) + " " + String(y1) + " " + String(w) + " " + String(h));   
} 



void loop(){
  int16_t value = analogRead(MESSPIN);
  intAltMesswert = intMesswert;
  intMesswert = value;

}

/********************************************************************//**
 * @brief     detects a touch event and converts touch data 
 * @param[in] None
 * @return    boolean (true = touch pressed, false = touch unpressed) 
 *********************************************************************/
bool Touch_Event() {
//  Serial.println("TouchEventStart");
  p = ctp.getPoint(); 
 
  delay(200);
//  Serial.println(p.z);
  if (p.z > 0) {
//    Serial.println("Touch Event");
    return true;
  }    
  return false;  
}

void printTftZentriert(uint16_t x, uint16_t y, String txt) {
  int16_t	x1;	int16_t y1;	uint16_t w;	uint16_t h;

  tft.getTextBounds(txt,0,y,&x1,&y1,&w,&h);
  
  Serial.print(String(txt) + " w:" + String(w) + " DW: " + String(DISPWIDTH) + " x b: " + String(((DISPWIDTH-w-x)/2)+x) );   
  Serial.println(); 
  tft.setCursor(((DISPWIDTH-w-x)/2)+x, y);
//  tft.setCursor(20, 30);
  tft.println(txt);
}
 
void printTftRechtsBuendig(uint16_t x, uint16_t y, String txt) {
  int16_t	x1;	int16_t y1;	uint16_t w;	uint16_t h;

  tft.getTextBounds(txt,0,y,&x1,&y1,&w,&h);
  
  Serial.print(String(txt) + " w:" + String(w) + " x-w: " + String(x-w) + " x b: " + String(((DISPWIDTH-w-x)/2)+x) );   
//  Serial.println(); 
  tft.setCursor(x-w, y);
//  tft.setCursor(20, 30);
  tft.println(txt);
}
 

  void SchirmIntro()
  {
    tft.fillScreen(ILI9341_YELLOW);
  //  tft.drawRGBBitmap(20,80, Zihatec_Logo,200,60);

    tft.setTextSize(3);
    tft.setTextColor(ILI9341_BLUE);
  //  tft.setFont(&FreeSansBold9pt7b);  
  //  tft.setCursor(10, 50);
//    printTftZentriert(0,50, INTROTEXT1);
    printTftRechtsBuendig(240,50, INTROTEXT1);
//  printTftZentriert(INTROTEXT1);

  //  tft.println(INTROTEXT1);
//    tft.setCursor(10, 100);
//    tft.println(INTROTEXT2);
    tft.setTextSize(3);
    printTftZentriert(0,100, INTROTEXT2);

    tft.setTextSize(1);
    tft.setTextColor(ILI9341_BLACK);
//    tft.setCursor(10, 150);
//    tft.println(VERSIONTEXT);
    printTftZentriert(00,150, VERSIONTEXT);


  }