How this interface could be strucured

[marcus don]

Hi all,
how would you structure an interface like this:

http://www.ociweb.com/jnb/forecast_frame.png

Is this a simple
- JFrame with a JPanel with GridBagLayout
repeated 5 times ?

Please, consider that row number could change, I mean I can receive not five
but a larger number of Forecast (please see the picture).

Thanks,
Marcus

[Cp Baherwani]

This could also be a JFrame containing JPanel with JScrollPane (containing JList) and JButton (close button). The list would have its rows rendered as JLabels (with icons and text to its right). The list will be scrollable when you have large number of row in the list.

[marcus don]

Hi Chandra Prakash,
thank you for you reply.

May you plese gimme another hint?
May you please suggest me a link to a tutorial or code sample,
in order to better understand how to implement a

list would have its rows rendered as JLabels (with icons and text to its right).

?

Thanks again,
Marcus.

[Ken Blair]

Swing Tutorial

[Cp Baherwani]

May you please suggest me a link to a tutorial or code sample,
in order to better understand how to implement

I have custom rendered JList sometime ago but donot have the code now.
Try this
http://www.google.com/search?hl=en&q=rendering+JList&btnG=Google+Search
The first result points to article on Sun's website with some examples
http://java.sun.com/developer/technicalArticles/InnerWorkings/customjlist/

[Craig Wood]

import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.text.*;
import java.util.*;
import javax.swing.*;
 
public class WF
{
    BufferedImage[] images;
    DateFormat df;
    String[] data;
    Random seed;
    JPanel panel;
    GridBagConstraints gbc;
 
    public WF(BufferedImage[] images)
    {
        this.images = images;
        df = new SimpleDateFormat("EEEE, MMM dd, yyyy");
        data = new String[] {
            "Clear(85...100)", "Rainy(87...105)", "Snow(23...35)",
            "Thunderstorms(82...93)"
        };
        seed = new Random();
    }
 
    private JPanel getPanel()
    {
        panel = new JPanel(new GridBagLayout());
        gbc = new GridBagConstraints();
        gbc.weightx = 1.0;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.gridwidth = GridBagConstraints.REMAINDER;
        gbc.weighty = 1.0;             // add "spring" at bottom
        panel.add(new JLabel(), gbc);  // to keep labels pushed up
        gbc.weighty = 0;               // reset
        return panel;
    }
 
    private void addForecast()
    {
        int index = seed.nextInt(data.length);
        String s = df.format(new Date()) + " - " + data[index];
        ImageIcon icon = new ImageIcon(images[index]);
        JLabel label = new JLabel(s, icon, SwingConstants.LEFT);
        int insertIndex = panel.getComponentCount()-1;  // above "spring"
        panel.add(label, gbc, insertIndex);
        panel.revalidate();
    }
 
    public static void main(String[] args)
    {
        WF test = new WF(getImages());
        JFrame f = new JFrame("Weather Forecast");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(test.getUIPanel(), "North");
        f.getContentPane().add(new JScrollPane(test.getPanel()));
        f.setSize(400,400);
        f.setLocation(200,200);
        f.setVisible(true);
    }
 
    private JPanel getUIPanel()
    {
        JButton add = new JButton("add");
        add.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                addForecast();
            }
        });
        JPanel panel = new JPanel();
        panel.add(add);
        return panel;
    }
 
    private static BufferedImage[] getImages()
    {
        String[] s = { "C", "R", "S", "T" };
        Color[] 
            bgs = { Color.yellow, Color.blue,   Color.white, Color.red    },
            fgs = { Color.blue,   Color.orange, Color.blue,  Color.yellow };
        int w = 30;
        int h = 30;
        BufferedImage[] images = new BufferedImage[4];
        for(int j = 0; j < images.length; j++)
        {
            images[j] = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
            Graphics2D g2 = images[j].createGraphics();
            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                                RenderingHints.VALUE_ANTIALIAS_ON);
            g2.setPaint(bgs[j]);
            g2.fillRect(0,0,w,h);
            g2.setPaint(fgs[j]);
            g2.drawRect(0, 0, w-1, h-1);
            g2.drawString(s[j], 10, 20);
            g2.dispose();
        }
        return images;
    }
}