Help with dispatching JTable event to underlying components in a cell.

Question

Hello..
I have a JTable in which i show a panel with clickable labels.. I found that jTable by default doesnt dispatch or allow mouseevents to be caught by underlying elements..
i need help with dispatching an event from jTable to a label on a panel in a jTable cell.. below is the code i have come up with after finding help with some websites. but i couldnt not get it right.. my dispatched event seems to go back to the jtable itself ..
any help or suggestion is appreciated..
Thanks
'Harish.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import javax.swing.table.*;
* @author  harish
public class tableDemo extends javax.swing.JFrame {
    JTable jTable1;
    testpane dummyPane;
    /** Creates new form tableDemo */
    public tableDemo() {
        initComponents();
        //table settings
        String[] columnNames = {"Task", "Action"," "};
        Object[][] data = { };
        DefaultTableModel model = new DefaultTableModel(data, columnNames) {
          // This method returns the Class object of the first
          // cell in specified column in the table model.
        public Class getColumnClass(int mColIndex) {
            int rowIndex = 0;
            Object o = getValueAt(rowIndex, mColIndex);
            if (o == null)
                return Object.class;
            } else
                return o.getClass();
        jTable1 = new javax.swing.JTable(model);
        jTable1.addMouseListener(new MouseAdapter(){
          public void mouseClicked(MouseEvent e){
              System.out.println("Clicked");
              handleTableMouseEvents(e);
             //invokeExternalApp("http://www.pixagogo.com");
          public void mouseEntered(MouseEvent e){
              System.out.println("Entered");
              //handleTableMouseEvents(e);
          public void mouseExited(MouseEvent e){
              System.out.println("Exited");
              //handleTableMouseEvents(e);
        jTable1.setRowHeight(100);
        jTable1.getTableHeader().setReorderingAllowed(false);
        jTable1.setBackground(new java.awt.Color(255, 255, 255));
        jTable1.setGridColor(new Color(250,250,250));
        jTable1.setShowGrid(true);
        jTable1.setShowVerticalLines(true);
        jTable1.setShowHorizontalLines(false);
        jTable1.setFont(new Font("Arial",0,11));
        jTable1.setMaximumSize(new java.awt.Dimension(32767, 32767));
        jTable1.setMinimumSize(new java.awt.Dimension(630, 255));
        jTable1.setPreferredSize(null);
        jTable1.setBackground(new Color(255,255,255));
        int vColIndex=0;
        TableColumn col = jTable1.getColumnModel().getColumn(vColIndex);
        int width = 100;
        col.setPreferredWidth(width);
        //add item to 2nd cell       
        Vector vec = new Vector();
        vec.addElement(null);
        dummyPane = new testpane();
        vec.addElement(dummyPane);
        ((DefaultTableModel)jTable1.getModel()).addRow(vec);
        jTable1.repaint();
        this.getContentPane().add(jTable1);
        jTable1.getColumn("Action").setCellRenderer(
          new MultiRenderer());
    protected void handleTableMouseEvents(MouseEvent e){
        TableColumnModel columnModel = jTable1.getColumnModel();
        int column = columnModel.getColumnIndexAtX(e.getX());
        int row    = e.getY() / jTable1.getRowHeight();
        testpane contentPane = (testpane)(jTable1.getModel().getValueAt(row, column));
        // get the mouse click point relative to the content pane
        Point containerPoint = SwingUtilities.convertPoint(jTable1, e.getPoint(),contentPane);
        if (column==1 && row==0)
        // so the user clicked on the cell that we are bothered about.         
        MouseEvent ev1 = (MouseEvent)SwingUtilities.convertMouseEvent(jTable1, e, contentPane);
        //once clicked on the cell.. we dispatch event to the object in that cell
     jTable1.dispatchEvent(ev1);
    private void initComponents() {
        addWindowListener(new java.awt.event.WindowAdapter() {
            public void windowClosing(java.awt.event.WindowEvent evt) {
                exitForm(evt);
        java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
        setBounds((screenSize.width-528)/2, (screenSize.height-423)/2, 528, 423);
    /** Exit the Application */
    private void exitForm(java.awt.event.WindowEvent evt) {
        System.exit(0);
     * @param args the command line arguments
    public static void main(String args[]) {
        new tableDemo().show();
    // Variables declaration - do not modify
    // End of variables declaration
    class testpane extends JPanel{
        public testpane(){
        GridBagConstraints gridBagConstraints;
        JPanel testpane = new JPanel(new GridBagLayout());
        testpane.setBackground(Color.CYAN);
        JLabel lblTest = new JLabel("test");
        lblTest.addMouseListener(new MouseAdapter(){
          public void mouseClicked(MouseEvent e){
              System.out.println("panelClicked");
          public void mouseEntered(MouseEvent e){
              System.out.println("panelEntered");
          public void mouseExited(MouseEvent e){
              System.out.println("panelExited");
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTHWEST;
        testpane.add(lblTest,gridBagConstraints);
        this.add(testpane);
class MultiRenderer extends DefaultTableCellRenderer {
  JCheckBox checkBox = new JCheckBox();
  public Component getTableCellRendererComponent(
                     JTable table, Object value,
                     boolean isSelected, boolean hasFocus,
                     int row, int column) {
    if (value instanceof Boolean) {                    // Boolean
      checkBox.setSelected(((Boolean)value).booleanValue());
      checkBox.setHorizontalAlignment(JLabel.CENTER);
      return checkBox;
    String str = (value == null) ? "" : value.toString();
    return super.getTableCellRendererComponent(
         table,str,isSelected,hasFocus,row,column);
    return (testpane)value;
class MultiEditor implements TableCellEditor {
  public MultiEditor() {
  public boolean isCellEditable(EventObject anEvent) {return false;}
  public boolean stopCellEditing() {return true;}
  public Object getCellEditorValue() {return null;} 
  public void cancelCellEditing() {}
  public boolean shouldSelectCell(EventObject anEvent) {return false;}
  public Component getTableCellEditorComponent(JTable table, Object value,
              boolean isSelected, int row, int column) {
    if (value instanceof testpane) {                       // ComboString
      System.out.println("yes instance");
    return null;
  public void addCellEditorListener(javax.swing.event.CellEditorListener l) {
  public void removeCellEditorListener(javax.swing.event.CellEditorListener l) {
}

Answer 1

any help on this.. anybody. ?