Image resize problem in Swing Application

Question

Hi All
I need a help on resizing and adjustment of Image in Swing application.
I am developing a Swing Application. There I am displaying a image on header.
I am finding it difficult to manage the image, as I want the image to perfectly fit horizontal bounds(Even on window resize).
The current code given below is unable to do so.. Even it's not able to fit the horizontal bounds by default.
========================================
//code for image starts
        BufferedImage myPicture;
        JLabel picLabel = null;
        try {
             myPicture = ImageIO.read(new File("artes_header.png"));
                picLabel = new JLabel(new ImageIcon(myPicture));
          } catch (Exception e) {
        GridBagLayout gLayout = new GridBagLayout();
        getContentPane().setLayout(gLayout);
        GridBagConstraints c = new GridBagConstraints();
        c.gridx = 1;
        c.gridy = 1;
        c.weightx = 1;
        c.fill = GridBagConstraints.BOTH;
        c.insets = new Insets(0, 0, 0, 0);
        panelTop.setBackground(Color.white);
        getContentPane().add(picLabel, c);
        c.gridx = 1;
        c.gridy = 2;
        c.weightx = 1;
        c.weighty = 1;
        getContentPane().add(tabPane, c);========================================
Kindly anyone help me solve the same issue.
Many thanks in advance.
Regards,
Gaurav
Edited by: user7668872 on Jul 31, 2011 6:25 AM
Edited by: user7668872 on Aug 4, 2011 3:56 AM

Answer 1

Your questions doesnt make a whole lot of sence so not sure if this is what you want...
This is a class to display an image on a jpanel. You can then use layout managers to make sure it is centrally alligned
import java.awt.*;
import javax.swing.*;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import java.io.*;
class testImagePanel{
    public static void main(String[] args){
        BufferedImage image = null;
        ImagePanel imagePanel = null;
        try{
            image = ImageIO.read(new File("image.jpg"));
            imagePanel = new ImagePanel(image);
            imagePanel.setLayout(new BorderLayout());
        }catch(IOException  e){
             System.err.println("Error trying to read in image "+e);
        JFrame frame = new JFrame("Example");
        frame.add(imagePanel);
        frame.pack();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);               
public class ImagePanel extends JPanel {
    private BufferedImage image;
    private Dimension size;
    public ImagePanel(BufferedImage image) {
        this.image = image;
        this.size = new Dimension();
        size.setSize(image.getWidth(), image.getHeight());
        this.setBackground(Color.WHITE);
    @Override
    protected void paintComponent(Graphics g) {
        // Center image in this component.
        int x = (getWidth() - size.width)/2;
        int y = (getHeight() - size.height)/2;
        g.drawImage(image, x, y, this);
    @Override
    public Dimension getPreferredSize() { return size; }
}