@Override
    public Component getTreeCellRendererComponent(JTree tree,
                                                  Object value,
                                                  boolean selected,
                                                  boolean expanded,
                                                  boolean leaf,
                                                  int row,
                                                  boolean hasFocus) {
      myPanel.removeAll();
      myPanel.setBackground(RenderingUtil.getBackground(tree));
      myPanel.add(myLeft.getTreeCellRendererComponent(tree, value, selected, expanded, leaf, row, hasFocus), BorderLayout.WEST);
      myPanel.add(myRight.getTreeCellRendererComponent(tree, value, selected, expanded, leaf, row, hasFocus), BorderLayout.EAST);
      return myPanel;
    }
@Override
    public Component getTreeCellRendererComponent(JTree tree,
                                                  Object value,
                                                  boolean selected,
                                                  boolean expanded,
                                                  boolean leaf,
                                                  int row,
                                                  boolean hasFocus)