JButton dispatchEvent problem

Question

Hi,
I've got JButtons in a JTable which means I have to capture the mouse events and forward them to the button.
I do this with a mouse listener on the table, and the lines:
buttonEvent = (MouseEvent)SwingUtilities.convertMouseEvent(table, e, button);
button.dispatchEvent(buttonEvent);
System.out.println(buttonEvent);
table.repaint();where 'e' is the original mouse event. This produces, for example:
java.awt.event.MouseEvent[MOUSE_CLICKED,(145,167),button=1,modifiers=Button1,clickCount=1]
on
javax.swing.JButton[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.5 <snip> text=Delete,defaultCapable=true]but yet nothing happens to the button. Is this a coordinate problem, or am I missing something else, as I don't really know what I'm doing?
Cheers,
Rob

Answer 1

MOUSE_CLICKED,(145,167),Well I'm guessing that you can't just convert the table coordinates and use them as the button coordinates because the button isn't that big.
An alternative approach might be to use the doClick() method of the button.
In case that doesn't work, here's something I've been playing with that may help:
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.table.*;
public class TableButton3 extends JFrame
     public TableButton3()
          String[] columnNames = {"Date", "String", "Integer", "Decimal", ""};
          Object[][] data =
               {new Date(), "A", new Integer(1), new Double(5.1), "Delete1"},
               {new Date(), "B", new Integer(2), new Double(6.2), "Delete2"},
               {new Date(), "C", new Integer(3), new Double(7.3), "Delete3"},
               {new Date(), "D", new Integer(4), new Double(8.4), "Delete4"}
          DefaultTableModel model = new DefaultTableModel(data, columnNames);
          JTable table = new JTable( model )
               //  Returning the Class of each column will allow different
               //  renderers to be used based on Class
               public Class getColumnClass(int column)
                    return getValueAt(0, column).getClass();
          JScrollPane scrollPane = new JScrollPane( table );
          getContentPane().add( scrollPane );
          //  Create button column
          ButtonColumn buttonColumn = new ButtonColumn(table, 4);
     public static void main(String[] args)
          TableButton3 frame = new TableButton3();
          frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
          frame.pack();
          frame.setVisible(true);
     class ButtonColumn extends AbstractCellEditor
          implements TableCellRenderer, TableCellEditor, ActionListener
          JTable table;
          JButton renderButton;
          JButton editButton;
          String text;
          public ButtonColumn(JTable table, int column)
               super();
               this.table = table;
               renderButton = new JButton();
               editButton = new JButton();
               editButton.setFocusPainted( false );
               editButton.addActionListener( this );
               TableColumnModel columnModel = table.getColumnModel();
               columnModel.getColumn(column).setCellRenderer( this );
               columnModel.getColumn(column).setCellEditor( this );
          public Component getTableCellRendererComponent(
               JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)
               if (hasFocus)
                    renderButton.setForeground(table.getForeground());
                     renderButton.setBackground(Color.WHITE);
               else if (isSelected)
                    renderButton.setForeground(table.getSelectionForeground());
                     renderButton.setBackground(table.getSelectionBackground());
               else
                    renderButton.setForeground(table.getForeground());
                    renderButton.setBackground(UIManager.getColor("Button.background"));
               renderButton.setText( (value == null) ? "" : value.toString() );
               return renderButton;
          public Component getTableCellEditorComponent(
               JTable table, Object value, boolean isSelected, int row, int column)
               text = (value == null) ? "" : value.toString();
               editButton.setText( text );
               return editButton;
          public Object getCellEditorValue()
               return text;
          public void actionPerformed(ActionEvent e)
               fireEditingStopped();
               System.out.println( "Action: " + e.getActionCommand() );
}