How to use org.jdesktop.swingx.renderer

public CheckTreeTableManager(JXTreeTable treeTable) {
  this.treetable = treeTable;
  this.tree = (JTree) treeTable.getCellRenderer(0, 0);
  selectionModel = new CheckTreeSelectionModel(tree.getModel());
  tree.setCellRenderer(new DefaultTreeRenderer(new CheckTreeCellProvider(selectionModel)));
  treeTable.addMouseListener(this);
  selectionModel.addTreeSelectionListener(this);
}

@Override
protected void format(CellContext arg0) {
  JTree tree = (JTree) arg0.getComponent();
  DefaultMutableTreeTableNode node = (DefaultMutableTreeTableNode) arg0.getValue();
  Object obj = node.getUserObject();
  if(obj instanceof FieldEntity){
  TreePath path = tree.getPathForRow(arg0.getRow());
  if (path != null) {
    if (selectionModel.isPathSelected(path, true)) {

/**
 * {@inheritDoc} <p>
 * 
 * Here: implemented to set the icon.
 */
@Override
protected void format(CellContext context) {
  rendererComponent.setIcon(getValueAsIcon(context));
}

/**
 * {@inheritDoc}
 */ 
@Override
protected ComponentProvider<?> createDefaultComponentProvider() {
  return new LabelProvider(createDefaultStringValue());
}

/**
 * @param background
 */
public void setBackground(Color background) {
  componentController.getDefaultVisuals().setBackground(background);

}

/**
 * @param foreground
 */
public void setForeground(Color foreground) {
  componentController.getDefaultVisuals().setForeground(foreground);
}

/**
 * {@inheritDoc} <p>
 * 
 * Here: implemented to set the icon.
 */
@Override
protected void format(CellContext context) {
  rendererComponent.setIcon(getValueAsIcon(context));
}

/**
 * {@inheritDoc}
 */ 
@Override
protected ComponentProvider<?> createDefaultComponentProvider() {
  return new LabelProvider(createDefaultStringValue());
}

/**
 * @param background
 */
public void setBackground(Color background) {
  componentController.getDefaultVisuals().setBackground(background);

}

/**
 * @param foreground
 */
public void setForeground(Color foreground) {
  componentController.getDefaultVisuals().setForeground(foreground);
}

/**
 * {@inheritDoc} <p>
 * 
 * Here: implemented to set the icon.
 */
@Override
protected void format(CellContext context) {
  rendererComponent.setIcon(getValueAsIcon(context));
}

/**
 * {@inheritDoc}
 */ 
@Override
protected ComponentProvider<?> createDefaultComponentProvider() {
  return new LabelProvider(createDefaultStringValue());
}

/**
 * @param background
 */
public void setBackground(Color background) {
  componentController.getDefaultVisuals().setBackground(background);

}

/**
 * @param foreground
 */
public void setForeground(Color foreground) {
  componentController.getDefaultVisuals().setForeground(foreground);
}

/**
 * {@inheritDoc} <p>
 * 
 * Here: implemented to set the icon.
 */
@Override
protected void format(CellContext context) {
  rendererComponent.setIcon(getValueAsIcon(context));
}

/**
 * {@inheritDoc}
 */ 
@Override
protected ComponentProvider createDefaultComponentProvider() {
  return new LabelProvider(createDefaultStringValue());
}

/**
 * @param background
 */
public void setBackground(Color background) {
  componentController.getDefaultVisuals().setBackground(background);

}

/**
 * @param foreground
 */
public void setForeground(Color foreground) {
  componentController.getDefaultVisuals().setForeground(foreground);
}

/**
 * {@inheritDoc} <p>
 * 
 * Here: implemented to set the icon.
 */
@Override
protected void format(CellContext context) {
  rendererComponent.setIcon(getValueAsIcon(context));
}

/**
 * @param background
 */
public void setBackground(Color background) {
  componentController.getDefaultVisuals().setBackground(background);

}