binary_hex_slider

// SLIDER 

float slider_width = 50;
float slider_height = 10;
float posx, posy;
boolean over = false;
boolean locked = false;
float xoff;
float fundo;

int WIDTH = 1000;
int HEIGHT = 500;

void setup() {
  size(1000, 500, P2D);
  posx = 0;//width/2;
  posy = height/2;
  rectMode(CENTER);
  line (posx, posy, posx+100, posy);
}

void draw() {
  fundo = posx;
  background(200);
  line (0, posy, WIDTH, posy);
  println (posx);
  if (dist(mouseX, mouseY, posx, posy) < slider_height) {
    fill(200);
    over = true;
  }
  else {
    fill(255);
    over = false;
  }

  rect(posx, posy, slider_width, slider_height);
  
  textSize(100);
  fill(255, 0, 0);
  text(posx, 10, 100);
  fill(0,255,0);
  text(decToHexa(int(posx)), 10, 340);
  text(decToBin(int(posx)), 10, 440);
}



void mousePressed() {
  if (over) {
    locked = true;
    xoff = mouseX-posx;
  }
}
void mouseDragged() {
  if (locked) {
    posx = mouseX-xoff;
  }
}
void mouseReleased() {
  locked = false;
}

void keyPressed() {
if (key == CODED) {
    if (keyCode == RIGHT) {
      posx += 1;
    } else if (keyCode == LEFT) {
      posx -= 1;
    } 
  }
}


String decToHexa(int n) 
{    
    // char array to store hexadecimal number 
    char[] hexaDeciNum = new char[100]; 
      
    // counter for hexadecimal number array 
    int i = 0; 
    while(n!=0) 
    {    
        // temporary variable to store remainder 
        int temp  = 0; 
          
        // storing remainder in temp variable. 
        temp = n % 16; 
          
        // check if temp < 10 
        if(temp < 10) 
        { 
            hexaDeciNum[i] = char(temp + 48); 
            i++; 
        } 
        else
        { 
            hexaDeciNum[i] = char(temp + 55); 
            i++; 
        } 
          
        n = n/16; 
    } 
    
    String returnString = "0x";
      
    // printing hexadecimal number array in reverse order 
    for(int j=i-1; j>=0; j--) {
         returnString = returnString + hexaDeciNum[j]; 
    }
    return returnString;
} 

String decToBin(int n) 
{    
    // char array to store hexadecimal number 
    char[] hexaDeciNum = new char[100]; 
      
    // counter for hexadecimal number array 
    int i = 0; 
    while(n!=0) 
    {    
        // temporary variable to store remainder 
        int temp  = 0; 
          
        // storing remainder in temp variable. 
        temp = n % 2; 
          
        // check if temp < 10 
        if(temp < 2) 
        { 
            hexaDeciNum[i] = char(temp + 48); 
            i++; 
        } 
        else
        { 
            hexaDeciNum[i] = char(temp + 55); 
            i++; 
        } 
          
        n = n/2; 
    } 
    
    String returnString = "b";
      
    // printing hexadecimal number array in reverse order 
    for(int j=i-1; j>=0; j--) {
         returnString = returnString + hexaDeciNum[j]; 
    }
    return returnString;
}