/* 
 * XAdder.java --
 *
 *      animation stuff.
 *
 * Copyright 1995 Regents of the University of California
 * Permission to use, copy, modify, and distribute this
 * software and its documentation for any purpose and without
 * fee is hereby granted, provided that this copyright
 * notice appears in all copies.  The University of California
 * makes no representations about the suitability of this
 * software for any purpose.  It is provided "as is" without
 * express or implied warranty.
 *
 * rcsid = "$Header: /disks/barad-dur/now/rywang/src/java/classes/ryw/XAdder.java,v 1.1 1995/10/07 14:15:39 rywang Exp $ xFS (Berkeley)"
 */

package ryw;

import java.awt.*;
import java.awt.image.*;
import java.util.Vector;
import java.util.Enumeration;


/**
 * A runnable object that performs animations.
 * It has a queue of actions to be performed.
 * the thread repeadely dequeues this queue and performs the addition.
 * @see ryw.XMover
 */
public class XAdder extends XAnim {
    final int addSleep = 1000;

    
    private void addOne (XPanel0 parent, Component comp,
			 Point pos, Dimension dim) {
	parent.add (comp, pos, dim);
	comp.repaint ();
	if (addSleep > 0) {
	    try {
		Thread.sleep (addSleep);
	    } catch (InterruptedException e) {
		return;
	    }
	}
    }

    
    public void run () {

	Enumeration addElements = this.elements ();

	while (addElements.hasMoreElements ()) {
	    XAddElement ae = (XAddElement) addElements.nextElement ();
	    addOne (ae.parent, ae.comp, ae.pos, ae.dim);
	}
    }
}