No se que estoy haciendo mal al añadir una nueva fila al jlist porque me los borra todos y se vuelve loco el JMenu
Les adjunto el código a ver si véis que esta fallando
Código:
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Vector;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import javax.swing.SwingUtilities;
public class MainClass implements ActionListener {
private Vector<Vector<String>> data;
private JFrame frame;
private JPanel panel;
private JList table;
private JPopupMenu popupMenu;
private JMenuItem deleteItem;
private JButton addButton;
static int selected = -1;
protected void initUI() {
frame = new JFrame();
panel = new JPanel();
data = new Vector<Vector<String>>();
for (int i = 0; i < 5; i++) {
Vector<String> row = new Vector<String>();
row.add("aaaa " + (i + 1));
data.add(row);
}
table = new JList<Object>(data);
popupMenu = new JPopupMenu();
deleteItem = new JMenuItem("Delete");
table.addMouseListener(new MouseAdapter() {
@Override
public void mouseReleased(MouseEvent e) {
if ( SwingUtilities.isLeftMouseButton( e ) )
{
selected = table.getSelectedIndex();
}
else if ( SwingUtilities.isRightMouseButton( e ))
{
selected = table.getSelectedIndex();
int rowNumber = table.getSelectedIndex();
System.out.println(rowNumber);
ListSelectionModel model = table.getSelectionModel();
model.setSelectionInterval( rowNumber, rowNumber );
if (!model.isSelectionEmpty()) {
selected = rowNumber;
mostrarPopupMenu(e);
frame.repaint();
}
}
}
private void mostrarPopupMenu(MouseEvent e) {
if (e.isPopupTrigger()) {
popupMenu.show(e.getComponent(),
e.getX(), e.getY());
}
}
});
deleteItem.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
int index = table.getSelectedIndex();
System.out.println(index);
data.remove(index);
table.clearSelection();
frame.repaint();
}
});
popupMenu.add(deleteItem);
addButton=new JButton("add");
addButton.setBounds(300,250,100,30);
addButton.addActionListener(this);
panel.add(new JScrollPane(table), BorderLayout.CENTER);
frame.add(addButton);
frame.add(panel);
frame.pack();
frame.setBounds(0,0,450,350);
frame.setVisible(true);
}
public void actionPerformed(ActionEvent e) {
if (e.getSource()==addButton) {
Vector<String> row = new Vector<String>();
data.add(row);
frame.repaint();
}
}
public static void main(String[] args) {
Runnable r = new Runnable() {
@Override
public void run() {
new MainClass().initUI();
}
};
EventQueue.invokeLater(r);
}
}
Gracias de antemano
Un saludo!
