Tree.leafIcon : JTree « javax.swing « Java by API

1. Java by API
2. javax.swing
3. JTree

Tree.leafIcon

  
import java.awt.BorderLayout;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.UIManager;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;

public class MainClass extends JFrame {
  JTree tree;

  DefaultTreeModel treeModel;

  public MainClass() {
    super("Tree Test Example");
    setSize(200, 150);
    setDefaultCloseOperation(EXIT_ON_CLOSE);

    UIManager.put("Tree.leafIcon", new ImageIcon("leafIcon.gif"));
    UIManager.put("Tree.openIcon", new ImageIcon("openIcon.gif"));
    UIManager.put("Tree.closedIcon", new ImageIcon("closedIcon.gif"));
    UIManager.put("Tree.expandedIcon", new ImageIcon("expandedIcon.gif"));
    UIManager.put("Tree.collapsedIcon", new ImageIcon("collapsedIcon"));
  }

  public void init() {
    DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
    DefaultMutableTreeNode subroot = new DefaultMutableTreeNode("SubRoot");
    DefaultMutableTreeNode leaf1 = new DefaultMutableTreeNode("Leaf 1");
    DefaultMutableTreeNode leaf2 = new DefaultMutableTreeNode("Leaf 2");

    treeModel = new DefaultTreeModel(root);
    tree = new JTree(treeModel);

    treeModel.insertNodeInto(subroot, root, 0);
    subroot.add(leaf1);
    root.add(leaf2);

    tree.putClientProperty("JTree.lineStyle", "Angled");
    getContentPane().add(tree, BorderLayout.CENTER);
  }

  public static void main(String args[]) {
    MainClass tt = new MainClass();
    tt.init();
    tt.setVisible(true);
  }
}

           
         
    
  

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