696 Part II: The Java Library
// Demonstrate text alignment.
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
/* <title>Text Layout</title>
<applet code="TextLayout" width=200 height=200>
<param name="text" value="Output to a Java window is actually
quite easy.
As you have seen, the AWT provides support for
fonts, colors, text, and graphics. <P> Of course,
you must effectively utilize these items
if you are to achieve professional results.">
<param name="fontname" value="Serif">
<param name="fontSize" value="14">
</applet>
*/public class TextLayout extends Applet {
final int LEFT = 0;
final int RIGHT = 1;
final int CENTER = 2;
final int LEFTRIGHT =3;
int align;
Dimension d;
Font f;
FontMetrics fm;
int fontSize;
int fh, bl;
int space;
String text;public void init() {
setBackground(Color.white);
text = getParameter("text");
try {
fontSize = Integer.parseInt(getParameter("fontSize"));}
catch (NumberFormatException e) {
fontSize=14;
}
align = LEFT;
addMouseListener(new MyMouseAdapter(this));
}public void paint(Graphics g) {
update(g);
}public void update(Graphics g) {
d = getSize();
g.setColor(getBackground());
g.fillRect(0,0,d.width, d.height);
if(f==null) f = new Font(getParameter("fontname"),
Font.PLAIN, fontSize);