Adding graphics to a Panel

Question

Hi there! i'd like to create an application where it would look like this:
===============
| O |
|______________|
| O O O |
|______________|
Where each frame would be a panel, and "O" an oval graphics. So the panel would have a height, widthd....
color....
And on each panel I would like to add an Oval, on a specific position (x,y). Is this possible? Can I add an actionListener for each oval object?
Thanks

Answer 1

You said application yet we are in an applet forum, so I chose applet.
This is one way to build what you are asking for. The mouse listener code can be used as you would use an action listener on components.
//  <applet code="CustomPainting" width="410" height="420"></applet>
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.util.*;
import java.util.List;
import javax.swing.*;
public class CustomPainting extends JApplet
    public void init()
        CustomPanel topPanel = new CustomPanel(Color.orange);
        topPanel.addOval(40,40);
        CustomPanel lowPanel = new CustomPanel(Color.cyan);
        lowPanel.addOval(40,40);
        lowPanel.addOval(80,40);
        lowPanel.addOval(120,40);
        Container cp = getContentPane();
        cp.setLayout(new GridBagLayout());
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.insets = new Insets(5,5,5,5);
        gbc.gridwidth = gbc.REMAINDER;
        cp.add(topPanel, gbc);
        cp.add(lowPanel, gbc);
    private class CustomPanel extends JPanel
        List ovalList;
        Shape selectedOval;
        int width, height, dia;
        public CustomPanel(Color color)
            ovalList = new ArrayList();
            dia = 25;
            setBackground(color);
            setPreferredSize(new Dimension(400,200));
            addMouseListener(new OvalSelector());
        public void paintComponent(Graphics g)
            super.paintComponent(g);
            Graphics2D g2 = (Graphics2D)g;
            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                                RenderingHints.VALUE_ANTIALIAS_ON);
            width = getWidth();
            height = getHeight();
            Shape s;
            for(int i = 0; i < ovalList.size(); i++)
                s = (Shape)ovalList.get(i);
                g2.draw(s);
        private class OvalSelector extends MouseAdapter
            public void mousePressed(MouseEvent e)
                Point p = e.getPoint();
                for(int i = 0; i < ovalList.size(); i++)
                    selectedOval = (Shape)ovalList.get(i);
                    if(selectedOval.contains(p))
                        System.out.println("selectedOval index = " + i);
                        break;
        public void addOval(int x, int y)
            Shape s = new Ellipse2D.Double(x, y, dia, dia);
            ovalList.add(s);
            repaint();
}