import java.io.BufferedInputStream;
import java.awt.event.*;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.StringReader;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.awt.*;
import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

public class Couleurs {
    public static void main(String[] args) {

        Map<String, Color> colorDict = new HashMap<String,Color>();

        try (BufferedReader fs = new BufferedReader(new FileReader("rgb.txt"))) {

            String line;
            while ((line = fs.readLine()) != null) {
                String[] elements = line.trim().split("[\\s\t]+");

                Color c = new Color(Integer.parseInt(elements[0]), Integer.parseInt(elements[1]), Integer.parseInt(elements[2]));
                String name = elements[3];
                colorDict.put(name, c);
            }
        } catch (Exception e ) {
            System.out.println(e);
        }

        JFrame f = new JFrame();
        f.setLayout(new GridLayout(1, 2));
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setSize(400, 250);

        String[] nameArray = new String[colorDict.size()];
        colorDict.keySet().toArray(nameArray);

        JList<String> list = new JList<String>(nameArray);
        JScrollPane jpane = new JScrollPane(list);
        jpane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        f.add(jpane);

        JPanel p = new JPanel();
        f.add(p);

        list.addListSelectionListener(new ListSelectionListener() {

            @Override
            public void valueChanged(ListSelectionEvent e) {
                p.setBackground(colorDict.get(list.getSelectedValue()));
            }
            
        });
        f.setVisible(true);
    }
}