JDialog + Image + Label

Question

Dear all,
i try to insert an animated gif into a JDialog that already contains a label. But,when the applications is running, the Dialog shows only the gif and the background color of the JDialog is grey and not the color that i chosen. Why?
Here is a code:
public class WaitDialog extends JDialog {
JPanel panel1 = new JPanel();
JLabel textLabel = new JLabel();
XYLayout xYLayout1 = new XYLayout();
Frame frame;
Vector waitDialog_language;
JPanel panelImage = new JPanel();
Toolkit toolkit = Toolkit.getDefaultToolkit();
Image imageContainer;
XYLayout xYLayout2 = new XYLayout();
public WaitDialog(Frame frame, String title, boolean modal, Vector waitDialog_language) {
super(frame, title, modal);
this.frame = frame;
this.waitDialog_language = waitDialog_language;
try {
jbInit();
//pack();
catch(Exception ex) {
ex.printStackTrace();
void jbInit() throws Exception {
panel1.setLayout(xYLayout1);
panel1.setBackground(new Color(255, 118, 79));
textLabel.setBackground(new Color(255, 118, 79));
textLabel.setFont(new java.awt.Font("Dialog", 1, 30));
textLabel.setHorizontalTextPosition(SwingConstants.LEFT);
textLabel.setText("Please wait....");
this.getContentPane().setBackground(new Color(255, 118, 79));
this.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
this.setModal(true);
this.setResizable(false);
xYLayout1.setWidth(400);
xYLayout1.setHeight(150);
panelImage.setLayout(xYLayout2);
panelImage.setBackground(new Color(255, 118, 79));
panelImage.setMinimumSize(new Dimension(160, 120));
panelImage.setPreferredSize(new Dimension(160, 120));
getContentPane().add(panel1);
panel1.add(panelImage, new XYConstraints(5, 28, 123, 95));
panel1.add(textLabel, new XYConstraints(143, 56, 282, -1));
this.setSize(new Dimension(443, 150));
int x = (frame.getSize().width - this.getSize().width) / 2;
int y = (frame.getSize().height - this.getSize().height) / 2;
this.setLocation(x + frame.getLocationOnScreen().x, y + frame.getLocationOnScreen().y);
//gif animated
imageContainer = toolkit.getImage("images/wheel.gif");
validate();
pack();
public void paint(Graphics g) {
Graphics g2 = panelImage.getGraphics();
g2.drawImage(imageContainer, 0, 0, this);
public void update(Graphics g) {
paint(g);
Thanks in advance.
Angelo

Answer 1

label.setOpaque( true );
Check out the Swing tutorial on "Painting" for more information on why setOpaque(...) method is important:
http://java.sun.com/docs/books/tutorial/uiswing/overview/draw.html