Processing 3.0.1: Best way to scroll RSS feed - rss

Question

I am new to Processing and I am trying to start small by combining some of the built-in examples. I am scrolling an RSS feed from Google News over an image. It seems to work just fine but the code is limited to scrolling one headline at a time. What if I want to limit the space between each headline? I thought of two ways to do this: the first is to headlines into a really long string. The second is to make two headlines scroll at once. The problem with the second method is that, if I move on to bigger images or start scrolling smaller strings (like stock quotes), I will need to have many statements for scrolling many headlines. Is there a better way that I am not thinking of?
/**
* Scrolling Rss Feeds
*
* Scroll headlines from Google News on top of an image
*/
PImage img; // Declare variable "a" of type PImage
float x; // horizontal location of headline
XML xml;
String[] headlines;
int index = 0;
void setup() {
size(640, 360);
x = width;
// The image file must be in the data folder of the current sketch
// to load successfully
img = loadImage("moonwalk.jpg"); // Load the image into the program
// The URL for the XML document
String url = "http://news.google.com/news?cf=all&hl=en&pz=1&ned=us&output=rss";
// Load the XML document
xml = loadXML(url);
// Grab the element we want
XML[] headers = xml.getChildren("channel/item/title");
headlines = new String[headers.length];
for (int i = 0; i < headers.length; i++) {
headlines[i] = headers[i].getContent();
}
}
void draw() {
// Displays the image at its actual size at point (0,0)
image(img, 0, 0);
textSize(32);
text(headlines[index], x, 90);
x = x - 3;
float w = textWidth(headlines[index]);
if (x < -w) {
x = width;
index = (index + 1) % headlines.length;
}
}