onlytexttreeexample.java

tame,扩展了好多SWing组件:JTable

/* (swing1.1.1beta2) */
package tame.examples;

import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.plaf.basic.BasicTreeUI;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;

/**
@author Nobuo Tamemasa
@version 1.0 04/16/99
*/
public class OnlyTextTreeExample extends JFrame {
  public OnlyTextTreeExample() {
    super("OnlyTextTreeExample");
    String[] strs = {"swing",     // 0
		     "platf",     // 1
		     "basic",     // 2
		     "metal",     // 3
		     "JTree"};    // 4

    DefaultMutableTreeNode[] nodes = new DefaultMutableTreeNode[strs.length];
    for (int i=0;i<strs.length;i++) {
      nodes[i] = new DefaultMutableTreeNode(strs[i]);
    }
    nodes[0].add(nodes[1]);
    nodes[1].add(nodes[2]);
    nodes[1].add(nodes[3]);
    nodes[0].add(nodes[4]);
    JTree tree = new JTree( nodes[0] );
    DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer)tree.getCellRenderer();
    renderer.setOpenIcon(null);
    renderer.setClosedIcon(null);
    renderer.setLeafIcon(null);
    BasicTreeUI ui = (BasicTreeUI)tree.getUI();
    ui.setExpandedIcon(null);
    ui.setCollapsedIcon(null);
    JScrollPane sp = new JScrollPane(tree);
    getContentPane().add(sp, BorderLayout.CENTER);
  }

  public static void main(String args[]) {
    OnlyTextTreeExample frame = new OnlyTextTreeExample();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {System.exit(0);}
    });
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}