class Table
{
  HashMap dataSet = new HashMap();
    
  Table()
  {  }

  void loadDataFromFile(String fileName)
  {
    //read all the lines 
    String[] lines = loadStrings(fileName);

    //loop through chunks
    for(int i = 0; i < lines.length; i++)
    {
      //break each chunk into an array of its words
      String[] tokens = split(lines[i],TAB);
      //add the data (key->value) into the hashmap
      dataSet.put(tokens[0], int(tokens[1]));
    }
  }

  void printData()
  {
    Iterator i = dataSet.entrySet().iterator();  // Get an iterator
    while (i.hasNext()) {
      Map.Entry e = (Map.Entry)i.next();
//      print(e.getKey() + " is ");
//      println(e.getValue());
    }
  }
  
//the meat and potatoes of this code :)  
  void drawData()
  {
    int index = 0;
    Iterator i = dataSet.entrySet().iterator();  // Get an iterator for crawling through the data
    textFont(boldFont);
   
    while (i.hasNext()) { 
      //extract the key val pairs one by one
      Map.Entry element = (Map.Entry)i.next();
      Integer v = (Integer)element.getValue();
      String k = (String)element.getKey();
      float x = locationTable.getFloat(k, 1); //get x-coordinate of states
      float y = locationTable.getFloat(k, 2); //get y-coordinate of states
      float rad = map(v, 0, 600, 1.5, 35); //maps the value on a scale between 1.5 and 35
      fill(200,100,0,30); //colors the ellipses
      stroke(0,40); //strokes
      translate(0,0);
      //places data according to locations, adds the ellipse
      ellipseMode(RADIUS);
      ellipse(x,y,rad,rad);
   
      index++; //counter

 //adds capability to reveal data of closest point on mouseover  

  closestDist = 18;
  float d = dist(x, y, mouseX, mouseY);

  if ((d < rad ) && (d < closestDist)) {
    closestDist = d;
    closestText = nf(v,0,0) + " (" + k + ")";
    closestTextX = x;
    closestTextY = y-rad-4;
  }
  
 if (closestDist != 18) {
        smooth();
       fill(random(60,255),random(60,255),random(60,255),30); //flickers colors randomly
       stroke(0,250); //adds stroke
       ellipseMode(RADIUS); //draws this new ellipse on top of old one
         ellipse(x,y,rad,rad);
         fill(0); //text
    textAlign(CENTER);
    text(closestText, closestTextX, closestTextY);
  }
  
//an extra, makes the cursor go away when clicking
   if(mousePressed == true) { noCursor(); } else { cursor(CROSS); }

 }
}


  int readDataValUsingKey(String key)
  {
    if(dataSet.containsKey(key))
    {
      //key exists
      KeyValPair kv = (KeyValPair)dataSet.get(key);
      return kv.val;
    }
    else
    {
      //key not found
      return 99999;
    }
  }
}