Hi

Ive written a wallpaper maker, but the problem is
while its calculating the pattern its gui isnt working.
at least i would like to put a message or a progress bar which shows its working.
In java i solve it with threads but in processing i dont know how.

thanks
bye
Viktor

u can find the wallpaper maker applet here:
http://people.inf.elte.hu/kelemen/symmetry/applet/

i searched around a while for a thread example in proce55ing but couldn't find it, so here's an example i made based on sun's examples.



Code:

// this is the class that will run our thread
public class MyThread extends Thread {
    int ctr;
    public MyThread(String str) {
	  super(str);  // we give it a name.
	  ctr = 0;
    }

    // run() is like the thread's main() or draw()
    public void run() {
	  while(true) {
		background(int(random(255)));
		println("run: " + getName() + " " + ctr);
		ctr++;
		try {
		    sleep((long)(1000));  // 1 sec delay
		} catch (InterruptedException e) {}
    }

}
}

void setup() {

    size(640,480);

    new MyThread("Test").start();  // create and start the thread!
}

void draw() {
    rectMode(CENTER);
    noStroke();
    fill(0,0,0,15);

    rect(mouseX, mouseY, 50, 50);
}