import proxml.*;
PImage img = null;
PImage prevImg = null;

//xml element to store and load the drawn ellipses
proxml.XMLElement pipes;
XMLInOut xmlInOut;

int track = 0;

void setup(){
  size(300,300);
  background(255);
  loadXML();
}

void xmlEvent(proxml.XMLElement element){
  pipes = element;
  initEllipses();
  //initialise PImage for background

}
void loadXML(){

  //load ellipses from file if it exists
  xmlInOut = new XMLInOut(this);
  try{

    xmlInOut.loadElement("http://pipes.yahoo.com/pipes/pipe.run?_id=rJkmdk2b3RGn_ShI1ZzWFw&_render=rss&search=sex"); 

  }
  catch(Exception e){
    //if the xml file could not be loaded it has to be created
    xmlEvent(new proxml.XMLElement("pipes"));
  } 
}

//draw all ellipses saved in the xml file
void initEllipses(){
  //pipes.printElementTree(" ");

  proxml.XMLElement pipe;
  proxml.XMLElement item;
  proxml.XMLElement data;

  String matchStr = "link";

  float longX = 0;
  float latY = 0;

  for(int i = 0; i < pipes.getChild(0).countChildren();i++){
    item = pipes.getChild(0).getChild(i);

    for(int e = 0; e < item.countChildren();e++){
      data = item.getChild(e);

      if(matchStr.equals(data.getName()) == true){
        println(data.getChild(0).getText());
        if(img != null){
          prevImg = img;
        }

        img = loadImage(data.getChild(0).getText());
        img.resize(width, height);

        tint(255,255,255,1.5);
        image(img,0,0);
        track++;
        println(track);
        //blend(img,0, 0, img.width, img.height, 0, 0, img.width, img.height, DODGE      );

      }

    }

  }

}
void draw(){
  
}