/*
 * @(#)NervousText08.java    1.1 97/04/01
 *
 * Copyright (c) 1994-1996 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Sun.
 *
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
 * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
 * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
 * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
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 * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
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 * This software is not designed or intended for use in on-line control of
 * aircraft, air traffic, aircraft navigation or aircraft communications; or in
 * the design, construction, operation or maintenance of any nuclear
 * facility. Licensee represents and warrants that it will not use or
 * redistribute the Software for such purposes.
 */

/*  Daniel Wyszynski 
    Center for Applied Large-Scale Computing (CALC) 
    04-12-95 

    Test of text animation.

    kwalrath: Changed string; added thread suspension. 5-9-95
*/
package sun.beanbox.beans;
import java.awt.event.*;
import java.awt.Graphics;
import java.awt.Font;
import java.awt.*;
import java.io.ObjectOutputStream;
import java.io.ObjectInputStream;
import java.io.IOException;
import java.beans.*;

public class NervousText08 extends Panel implements Runnable, MouseListener {

    char separated[];
    String s = null;
    transient Thread killme = null;
    int i;
    int x_coord = 0, y_coord = 0;
    String num;
    int speed=35;
    int counter =0;
    boolean threadSuspended = false; //added by kwalrath
    boolean lefttoright = true;
      
// (06/28/97 08:21:45 AM)
public NervousText08() {
System.err.println("ENTER---> NervousText08 constructor");
    addMouseListener(this);
    // s = getParameter("text");
    if (s == null) {
        //s = "HotJava";
        s = "Nervous Bean";
    }

    separated =  new char [s.length()];
    s.getChars(0,s.length(),separated,0);
    resize((s.length()+1)*15, 50);
    setFont(new Font("TimesRoman",Font.BOLD,36));
    start();
System.err.println("EXIT----> NervousText08 constructor");
 }

public void setText(String newstring){
    String oldstring = s; 
    s=new String(newstring);
    separated= new char[s.length()];
    s.getChars(0,s.length(),separated,0);
    sizeToFit();
    support.firePropertyChange("text", oldstring, newstring);
}

public String getText(){
    return(s);
}

public void changeDirection(ActionEvent x)
{
    if(lefttoright)
        lefttoright=false;
    else
        lefttoright=true;
}

private void writeObject(ObjectOutputStream s)
    throws IOException
{
    s.defaultWriteObject();
        if(killme == null)
            s.writeBoolean(false);
        else
            s.writeBoolean(true);

  }


private void readObject(ObjectInputStream s)
    throws ClassNotFoundException, IOException
{
    s.defaultReadObject();
        if(s.readBoolean()==false)
            killme=null;
        else
            start();
}

public void start() {
    if(killme == null) 
    {
        killme = new Thread(this);
        killme.start();
    }
 }

/* Try dynamic sizing
// public Dimension preferredSize() {  // use this for a fixed size bean
public Dimension getMinimumSize() {  // use this for a variable size bean
    return (new Dimension(150,150));
}
*/

public void stop() {
    killme = null;
 }

public void run() {
    while (killme != null) {
    try {Thread.sleep(100);} catch (InterruptedException e){}
    repaint();
    }
    killme = null;
 }

public synchronized void paint(Graphics g) {
    for(i=0;i<s.length();i++)
    {
    x_coord = (int) (Math.random()*10+15*i);
    y_coord = (int) (Math.random()*10+36);
    //g.drawChars(separated, i,1,x_coord,y_coord);
    if(lefttoright)
        g.drawChars(separated, i,1,x_coord,y_coord);
    else
        g.drawChars(separated, (s.length())-i-1,1,x_coord,y_coord);
    }
 }


  public void mousePressed(MouseEvent e) {
    /*
    e.consume();
    if (threadSuspended) {
      killme.resume();
    }
    else {
      killme.suspend();
    }
    threadSuspended = !threadSuspended;
    */
  }

  public void mouseReleased(MouseEvent e) {
  }

  public void mouseEntered(MouseEvent e) {
  }

  public void mouseExited(MouseEvent e) {
  }

  public void mouseClicked(MouseEvent e) {
  }

    //----------------------------------------------------------------------

    public void addPropertyChangeListener(PropertyChangeListener l) {
    support.addPropertyChangeListener(l);
    }

    public void removePropertyChangeListener(PropertyChangeListener l) {
    support.removePropertyChangeListener(l);
    }

    private PropertyChangeSupport support = new PropertyChangeSupport(this);

    //----------------------------------------------------------------------

    public void reportChange(PropertyChangeEvent evt) {
    System.err.println("ENTER---> NervousText08 reportChange");

    String oldValue = evt.getPropertyName() + " := " + evt.getOldValue();
    String newValue = evt.getPropertyName() + " := " + evt.getNewValue();

    System.err.println("New value: " + oldValue);
    System.err.println("Old value: " + newValue);
    System.err.println("EXIT----> NervousText08 reportChange");
    }

    public void makeChange(PropertyChangeEvent evt) {
    System.err.println("ENTER---> NervousText08 makeChange");

    String oldValue = (String)evt.getOldValue(); // (String) cast required since 
    String newValue = (String)evt.getNewValue(); // evt.getOldValue() returns an Object
    setText("*" + newValue + "*");
    // if (oldValue != newValue) {
    //    setText("*" + newValue + "*");
    // }

    System.err.println("New value: " + oldValue);
    System.err.println("Old value: " + newValue);
    System.err.println("EXIT----> NervousText08 makeChange");
    }

    // The following changes are based on code
    // adapted from OurButton.java
    private void sizeToFit() {
        Dimension d = getPreferredSize();
        setSize(d.width, d.height);
        Component p = getParent();
        if (p != null) {
            p.invalidate();
            p.doLayout();
        }
    }


    public Dimension getPreferredSize() {
        FontMetrics fm = getFontMetrics(getFont());
        return new Dimension(fm.stringWidth(getText()) + TEXT_XPAD,
                 fm.getMaxAscent() + fm.getMaxDescent() + TEXT_YPAD);
    }
    /**
     * @deprecated provided for backward compatibility with old layout managers.
     */
    public Dimension preferredSize() {
    return getPreferredSize();
    }
    public Dimension getMinimumSize() {
    // return getPreferredSize();
     return (new Dimension(150,150));
   }

    /**
     * @deprecated provided for backward compatibility with old layout managers.
     */
    public Dimension minimumSize() {
    return getMinimumSize();
    }
    static final int TEXT_XPAD = 12;
    static final int TEXT_YPAD = 8;
}