Working with Tree Tooltips: using a Tooltip Cell Renderer : JTree Editor Renderer « Swing « Java Tutorial

Working with Tree Tooltips: using a Tooltip Cell Renderer
import java.awt.BorderLayout;
import java.awt.Component;
import java.util.Dictionary;
import java.util.Properties;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.ToolTipManager;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.TreeCellRenderer;

class ToolTipTreeCellRenderer implements TreeCellRenderer {
  DefaultTreeCellRenderer renderer = new DefaultTreeCellRenderer();

  Dictionary tipTable;

  public ToolTipTreeCellRenderer(Dictionary tipTable) {
    this.tipTable = tipTable;

  public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected,
      boolean expanded, boolean leaf, int row, boolean hasFocus) {
    renderer.getTreeCellRendererComponent(tree, value, selected, expanded, leaf, row, hasFocus);
    if (value != null) {
      Object tipKey;
      if (value instanceof DefaultMutableTreeNode) {
        tipKey = ((DefaultMutableTreeNode) value).getUserObject();
      } else {
        tipKey = tree.convertValueToText(value, selected, expanded, leaf, row, hasFocus);
      renderer.setToolTipText((String) tipTable.get(tipKey));
    return renderer;

public class TreeTips {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Tree Tips");
    Properties props = System.getProperties();
    JTree tree = new JTree(props);
    TreeCellRenderer renderer = new ToolTipTreeCellRenderer(props);
    JScrollPane scrollPane = new JScrollPane(tree);
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);

14.69.JTree Editor Renderer
14.69.1.Getting Default TreeCellRenderer From JTreeGetting Default TreeCellRenderer From JTree
14.69.2.extends JLabel implements TreeCellRendererextends JLabel implements TreeCellRenderer
14.69.3.Creating a Custom RendererCreating a Custom Renderer
14.69.4.Working with Tree Tooltips: using a Tooltip Cell RendererWorking with Tree Tooltips: using a Tooltip Cell Renderer
14.69.5.Editing Tree Nodes with triple clickingEditing Tree Nodes with triple clicking
14.69.6.Creating a DefaultCellEditor: JTextFieldCreating a DefaultCellEditor: JTextField
14.69.7.Creating a DefaultCellEditor: JComboBoxCreating a DefaultCellEditor: JComboBox
14.69.8.Creating a DefaultCellEditor: JCheckBoxCreating a DefaultCellEditor: JCheckBox
14.69.9.Creating a Proper ComboBox Editor for a TreeCreating a Proper ComboBox Editor for a Tree
14.69.10.Creating an Editor Just for Leaf NodesCreating an Editor Just for Leaf Nodes
14.69.11.Rendering an image in a JTable column
14.69.12.Setting the Activation Click Count for a Table Cell Editor in a JTable Component
14.69.13.Using DefaultTreeCellRenderer
14.69.14.Changing and Removing the Default Icons in a JTree Component
14.69.15.Use UIManager to change the default icon for JTree
14.69.16.Flush the internal cache of Row height