Salut,
comment insérer une image dans un jwindow et qu'elle occupe tout le jwindow?
voilà ce que j'ai essayé de faire, mais il y arien ne s'affiche :
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.Insets;
import java.awt.Toolkit;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.beans.EventHandler;
 
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.JWindow;
 
public class MainWindow extends JWindow {
 
	private static final long serialVersionUID = 1L;
	private JLabel welcomeLbl = null;
	private JPanel loginPane = null;
	private JLabel loginLbl = null;
	private JLabel passwordLbl = null;
	private JTextField loginField = null;
	private JPasswordField passwordField = null;
	private JButton loginBt = null;
	private Image img = null;
 
	public MainWindow() {
		initGUI();
	}
 
	public void initGUI() {
 
		Toolkit toolkit = Toolkit.getDefaultToolkit();
		Dimension dim = toolkit.getScreenSize();
		setSize(dim.width / 2, dim.height / 2);
		setLocation(dim.width / 2 - getWidth() / 2, dim.height / 2
				- getHeight() / 2);
		this.getContentPane().add(createLoginPanel(), BorderLayout.CENTER);
		System.out.println(this.getWidth() +""+ this.getHeight());
 
		setVisible(true);
	}
 
	public void paintComponent(Graphics g)
    { 
		img = Toolkit.getDefaultToolkit().getImage("assets/budget.png");
        g.drawImage(img, 0, 0, this.getWidth(),this.getHeight(), createLoginPanel());
    }
 
	public JLabel getWelcomeLbl() {
		if (welcomeLbl == null) {
			welcomeLbl = new JLabel(
					"Syndicat Manager, your easy way to manage your syndicat");
			welcomeLbl.setForeground(Color.green.darker());
		}
		return welcomeLbl;
	}
 
	private JPanel createLoginPanel() {
 
		if (loginPane == null) {
			loginPane = new JPanel();
			loginPane.setLayout(new GridBagLayout());
			GridBagConstraints gbc = new GridBagConstraints();
 
			int i = 0;
			gbc.insets = new Insets(2, 2, 2, 2);
			gbc.anchor = GridBagConstraints.NORTHEAST;
			gbc.gridx = 1;
			gbc.gridy = i;
			loginPane.add(new JLabel("Veuillez entrer vos paramètres"), gbc);
 
			i++;
			loginLbl = new JLabel("Login ");
			gbc.gridx = 0;
			gbc.gridy = i;
			gbc.gridwidth = 1;
			gbc.fill = GridBagConstraints.NONE;
			loginPane.add(loginLbl, gbc);
 
			loginField = new JTextField(20);
			gbc.gridx = 1;
			gbc.gridy = i;
			gbc.gridwidth = 2;
			gbc.fill = GridBagConstraints.HORIZONTAL;
			loginPane.add(loginField, gbc);
 
			i++;
			passwordLbl = new JLabel("Mot de passe ");
			gbc.gridx = 0;
			gbc.gridy = i;
			gbc.gridwidth = 1;
			gbc.fill = GridBagConstraints.NONE;
			loginPane.add(passwordLbl, gbc);
 
			passwordField = new JPasswordField();
			gbc.gridx = 1;
			gbc.gridy = i;
			gbc.gridwidth = 2;
			gbc.fill = GridBagConstraints.HORIZONTAL;
			loginPane.add(passwordField, gbc);
 
			i++;
			loginBt = new JButton("Se connecter");
			loginBt.setName("loginBt");
			loginBt.addActionListener(EventHandler.create(ActionListener.class,
					this, "mouseClicked", "source"));
			gbc.gridx = 2;
			gbc.gridy = i;
			gbc.anchor = GridBagConstraints.CENTER;
			gbc.fill = GridBagConstraints.BOTH;
			loginPane.add(loginBt, gbc);
			loginPane.setBackground(new Color(252, 252, 252));
			loginPane.setBorder(BorderFactory.createLineBorder(Color.GRAY));
 
		}
		return loginPane;
	}
 
 
	public void mouseClicked(JButton jb) {
		if (jb.getName() == "loginBt") {
			new SyndicatMain().setVisible(true);
			// close the window after calling the main frame of the application
			addWindowListener (new WindowAdapter(){
				public void windowClosing (WindowEvent e){
					System.exit(0);
				}
			});
		}
	}
 
	public static void main(String[] args) {
		new MainWindow();
	}
 
}
merci d'avance.