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Blinking Text

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Submitted on: 1/2/2015 10:40:00 AM
By: Mike McNaughton (from psc cd)  
Level: Beginner
User Rating: By 3 Users
Compatibility: Java (JDK 1.2)
Views: 1947
 
     Very cool Blinking text code. Check it out!
 
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//**************************************
// Name: Blinking Text
// Description:Very cool Blinking text code. Check it out!
// By: Mike McNaughton (from psc cd)
//**************************************

*/
import java.awt.*;
import java.util.StringTokenizer;
/**
 * I love blinking things.
 *
 * @author Arthur van Hoff
 * @modified 04/24/96 Jim Hagen use getBackground
 * @modified 02/05/98 Mike McCloskey removed use of deprecated methods
 */
public class Blink extends java.applet.Applet implements Runnable
{
Thread blinker = null;// The thread that displays images 
String labelString;// The label for the window 
int delay;// the delay time between blinks
public void init() {
	String blinkFrequency = getParameter("speed");
	delay = (blinkFrequency == null) ? 400 :
(1000 / Integer.parseInt(blinkFrequency));
	labelString = getParameter("lbl");
	if (labelString == null)
labelString = "Blink";
Font font = new java.awt.Font("Serif", Font.PLAIN, 24);
	setFont(font);
}
public void paint(Graphics g) {
int fontSize = g.getFont().getSize();
	int x = 0, y = fontSize, space;
	int red =(int)( 50 * Math.random());
	int green = (int)( 50 * Math.random());
	int blue = (int)(256 * Math.random());
	Dimension d = getSize();
g.setColor(Color.black);
	FontMetrics fm = g.getFontMetrics();
	space = fm.stringWidth(" ");
	for (StringTokenizer t = new StringTokenizer(labelString); t.hasMoreTokens();) {
	String word = t.nextToken();
	int w = fm.stringWidth(word) + space;
	if (x + w > d.width) {
		x = 0;
		y += fontSize;
	}
	if (Math.random() < 0.5)
		g.setColor(new java.awt.Color((red + y*30) % 256, (green + x/3) % 256, blue));
	else
g.setColor(getBackground());
	g.drawString(word, x, y);
	x += w;
	}
}
public void start() {
	blinker = new Thread(this);
	blinker.start();
}
public void stop() {
	blinker = null;
}
public void run() {
Thread me = Thread.currentThread();
	while (blinker == me) {
try { 
Thread.currentThread().sleep(delay);
} 
catch (InterruptedException e) {
}
	repaint();
	}
}
 public String getAppletInfo() {
 return "Title: Blinker\nAuthor: Arthur van Hoff\nDisplays multicolored blinking text.";
 } 
 
 public String[][] getParameterInfo() {
 String pinfo[][] = {
 {"speed", "string", "The blink frequency"},
 {"lbl", "string", "The text to blink."},
 };
 return pinfo;
 }
}


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