Printing in Java - An Introduction to Graphical User Interfaces with Java Swing - page 231

} catch (PrinterException pex) {
pex.printStackTrace();

}

}

■ 19.3 An example application

The two classes listed below form an application that allows a panel to be printed.
Class PrintPanel is specified in Figure 19.1. To make PrintPanel printable, we
have to implement interface Printable by defining the print method as described
in Section 19.1.

File: its/Printing/PrintPanel.java

1.

package its.Printing;

2.
3.

import java.awt.Color;

import java.awt.Dimension; 4.

import java.awt.Graphics; 5.

import java.awt.print.PageFormat; 6.

import java.awt.print.Printable; 7.

import javax.swing.JPanel; 8.

import javax.swing.RepaintManager; 9.

10.
11.

public class PrintPanel extends JPanel implements Printable {

12.
13. public PrintPanel() {

14.

this .setBackground(Color.white);

15.

this .setPreferredSize( new Dimension(300, 200));

16.

}

17.
18. public void paintComponent(Graphics g) {

19.

super .paintComponent(g);

20.

g.setColor(Color.black);

21.

g.drawRect(20,20,100,50);

22.

g.fillOval(80,80,60,30);

23.

g.drawString("Printing in JAVA is easy!",100,150);

24.

g.setColor(Color.red);

25.

g.drawRect(0,0,299,199);

} 26.

27.
28.

public int print(Graphics g, PageFormat pageFormat, int pageIndex) {

if (pageIndex > 0) { 29.

return (NO_SUCH_PAGE); 30.

} else { 31.

int x=( int )pageFormat.getImageableX() + 1; 32.