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

1. Java Tutorial
2. Swing
3. JTree Editor 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");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Properties props = System.getProperties();
    JTree tree = new JTree(props);
    
    ToolTipManager.sharedInstance().registerComponent(tree);
    TreeCellRenderer renderer = new ToolTipTreeCellRenderer(props);
    
    tree.setCellRenderer(renderer);
    JScrollPane scrollPane = new JScrollPane(tree);
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}

14.69.JTree Editor Renderer
	14.69.1.	Getting Default TreeCellRenderer From JTree
	14.69.2.	extends JLabel implements TreeCellRenderer
	14.69.3.	Creating a Custom Renderer
	14.69.4.	Working with Tree Tooltips: using a Tooltip Cell Renderer
	14.69.5.	Editing Tree Nodes with triple clicking
	14.69.6.	Creating a DefaultCellEditor: JTextField
	14.69.7.	Creating a DefaultCellEditor: JComboBox
	14.69.8.	Creating a DefaultCellEditor: JCheckBox
	14.69.9.	Creating a Proper ComboBox Editor for a Tree
	14.69.10.	Creating 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