// This example is from the book _Java AWT Reference_ by John Zukowski.
// Written by John Zukowski. Copyright (c) 1997 O'Reilly & Associates.
// You may study, use, modify, and distribute this example for any purpose.
// This example is provided WITHOUT WARRANTY either expressed or
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class metrics extends JPanel {
metrics () {
setFont (new Font ("TimesRoman", Font.BOLD | Font.ITALIC, 48));
setSize (225, 175);
}
public void paint (Graphics g) {
g.translate (100, 100);
FontMetrics fm = null;
int ascent, descent, leading, width1, width2, height;
String string1 = "dsdas";
String string2 = "asdf";
int xPos = 25, yPos = 50;
fm = g.getFontMetrics();
ascent = fm.getAscent();
descent = fm.getDescent();
leading = fm.getLeading();
height = fm.getHeight();
width1 = fm.stringWidth (string1);
width2 = fm.stringWidth (string2);
g.drawString (string1, xPos, yPos);
g.drawLine (xPos, yPos - ascent - leading,
xPos + width1, yPos - ascent - leading);
g.drawLine (xPos, yPos - ascent,
xPos + width1, yPos - ascent);
g.drawLine (xPos, yPos,
xPos + width1, yPos);
g.drawLine (xPos, yPos + descent,
xPos + width1, yPos + descent);
g.drawString (string2, xPos, yPos+height);
g.drawLine (xPos, yPos - ascent - leading + height,
xPos + width2, yPos - ascent - leading + height);
g.drawLine (xPos, yPos - ascent + height,
xPos + width2, yPos - ascent + height);
g.drawLine (xPos, yPos + height,
xPos + width2, yPos + height);
g.drawLine (xPos, yPos + descent + height,
xPos + width2, yPos + descent + height);
}
public static void main (String[] args) {
JFrame f = new JFrame();
f.add(new metrics());
f.setSize(300,300);
f.setVisible(true);
}
}