import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.util.Vector;

public class HitList extends Applet implements ActionListener, MouseListener {

    private Vector artists = new Vector();
    private String text;
    private boolean itemSelected = false;
    private int indexSelected = -1;
    private Button add, remove, insert, right;
    private TextField textField;
    private Artist artist;
    private int stepSize = 40;
    private int startY = 60;

    public void init() {
        add = new Button("add at end");
        add(add);
        add.addActionListener(this);
        remove = new Button("remove");
        add(remove); 
        remove.addActionListener(this);
        insert = new Button("insert");
        add(insert);
        insert.addActionListener(this);
        textField = new TextField("", 10);
        add(textField);
        addMouseListener(this);

        artist = new Artist("Elvis");
        artists.addElement(artist);
    }

    public void actionPerformed(ActionEvent event) {
        text = textField.getText();
        if (event.getSource() == add)
            add();
        if (event.getSource() == remove)
            remove();
        if (event.getSource() == insert)
            insert();
        itemSelected = false;

        repaint();
    }

    public void mouseClicked(MouseEvent event) {
        int yCoord = event.getY();
        indexSelected = (yCoord - startY) / stepSize;
        itemSelected = true;
        repaint();
    }

    public void mouseReleased(MouseEvent mouse) {
    }

    public void mousePressed(MouseEvent mouse) {
    }

    public void mouseEntered(MouseEvent mouse) {
    }

    public void mouseExited(MouseEvent mouse) {
    }

    private void add() {
        artist = new Artist(text);
        artists.addElement(artist);
    }

    private void remove() {
        if (itemSelected) 
            artists.removeElementAt(indexSelected);
    }

    private void insert() {
        artist = new Artist(text);
        if (itemSelected) 
            artists.insertElementAt(artist, indexSelected);
    }
        
    public void paint(Graphics g) {
        for (int i = 0; i < artists.size(); i++) {
        artist = (Artist) artists.elementAt(i);
            int x = 20;
            int y = stepSize * i + startY;
            if (i == indexSelected && itemSelected)
                artist.display(g, x, y, true);
            else
                artist.display(g, x, y, false);
        }
    }
}

class Artist {

    private int height = 25, width = 75;
    private String name;

    public Artist(String name) {
        this.name = name;
    }

    public void display(Graphics g, int x, int y, boolean selected) {
        if (selected) {
            g.setColor(Color.lightGray);
            g.fillRect(x, y, width, height);
            g.setColor(Color.black);
        }
        else
            g.drawRect(x, y, width, height);
        g.drawString(name, x + 5, y + 20);
    }
}