Re: Javas GridBagLayout does not display an (extended) Canvas (AWT / Java 1.4)

Thanks alot, that's it! I do post my fully functional skeleton here to
ease others attempts and I hope that this is not messing up to you.
Take care

Christian

import java.awt.*;
import java.awt.event.*;

public class PaintCanvas extends Frame {

    public PaintCanvas() {

        GridBagLayout layout = new GridBagLayout();
        this.setLayout(layout);

        this.setSize(150, 200);
        this.setLocation(100, 100);
        this.setBackground(Color.gray);

        GridBagConstraints constraints = new GridBagConstraints();

        constraints.fill = GridBagConstraints.BOTH;
        constraints.gridx = 0;
        constraints.gridy = 0;

        // setting these weightx and weighty supersedes
        // overriding getPreferredSize() in MyCanvas
        constraints.weightx = 1;
        constraints.weighty = 1;

        MyCanvas canvas = new MyCanvas();
        canvas.setBackground(Color.black);

        this.add(canvas, constraints);

        constraints.fill = GridBagConstraints.HORIZONTAL;
        constraints.gridx = 0;
        constraints.gridy = 1;

        // setting these weightx and weighty supersedes
        // overriding getPreferredSize() in MyCanvas
        constraints.weightx = 1;
        constraints.weighty = 0;

        Button button = new Button("GridBagLayout is great");
        this.add(button, constraints);

    }

    class MyCanvas extends Canvas {

    }

    public static void main (String argv[]) {

        PaintCanvas painter = new PaintCanvas();

        painter.addWindowListener(new WindowAdapter()
        {
            public void windowClosing (WindowEvent e) {
                System.exit (0);
            }
        });

        painter.setVisible (true);

    }

}