Selcting Multiple CheckBoxe in a JTREE without holding CTRL / SHIFT

Question

HI,
My JTree is having JCheckBOxes as nodes .... Now the problem is i want to select multiple nodes (checkboxes) with out holding CTRL/SHIFT key .
Please help regarding this issue ..
The code of my renderer class is as below:
* MyTreeRendered.java
* Created on April 27, 2006, 7:42 PM
import javax.swing.*;
import javax.swing.tree.*;
import java.awt.*;
public class MyTreeRendered extends DefaultTreeCellRenderer  {
    private JCheckBox cb ;
    /** Creates a new instance of MyTreeRendered */
    public MyTreeRendered() {
    public Component getTreeCellRendererComponent(
                        JTree tree,
                        Object value,
                        boolean sel,
                        boolean expanded,
                        boolean leaf,
                        int row,
                        boolean hasFocus){
       if(cb == null) {
           cb = new JCheckBox();
           cb.setBackground(tree.getBackground());
       DefaultMutableTreeNode node = (DefaultMutableTreeNode)value;
       cb.setText(node.getUserObject().toString());
       cb.setSelected(sel);
       return cb;
}

Answer 1

These are the methods which seem to define that behaviour:
http://java.sun.com/j2se/1.5.0/docs/api/javax/swing/plaf/basic/BasicTreeUI.html#isToggleSelectionEvent(java.awt.event.MouseEvent)
http://java.sun.com/j2se/1.5.0/docs/api/javax/swing/plaf/basic/BasicTreeUI.html#isMultiSelectEvent(java.awt.event.MouseEvent)
You'd have to write your own TreeUI and override them.