Save to jpeg

Question

hi all,
i tried to save a jlayeredPane to a jpeg; all the compnents are saved but the background dirty, i mean wth different kind of fragments of images, and i don't know from where;
how can i save a jpeg with the background clear ?
Himerus
thanks in advance

Answer 1

Works for me:
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
import javax.imageio.*;
import javax.swing.*;
public class ComponentSaver {
    public static void save(Component comp, File file) throws IOException {
        file.delete();
        int w = comp.getWidth();
        int h = comp.getHeight();
        BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
        Graphics2D g = bi.createGraphics();
        g.setColor(Color.WHITE);
        g.fillRect(0, 0, w, h); //clear
        comp.paint(g);
        g.dispose();
        ImageIO.write(bi, "jpeg", file);
    public static void main(String[] args) {
        final JFrame f = new JFrame("ComponentSaver");
        JButton save = new JButton("save");
        save.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent evt) {
                try {
                    save(f.getLayeredPane(), new File("junk.jpeg"));
                } catch (IOException e) {
                    e.printStackTrace();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Container cp = f.getContentPane();
        cp.add(new JLabel("sample label"), BorderLayout.CENTER);
        cp.add(save, BorderLayout.SOUTH);
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
}