insert.java

企业内部管理系统

package viewtuba1;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreePath;

import model.MyTree;

public class Insert {
	WindowFrame wf;
	MyTree mt;
	JTextField jtf;
	public Insert() {
		final JFrame frame = new JFrame();
		Container c = frame.getContentPane();
		c.setLayout(new BorderLayout());
		JPanel jp1 = new JPanel();
		jp1.setLayout(new FlowLayout());
		JLabel jl1 = new JLabel("Please input TreeNode name");
		jp1.add(jl1);
		JPanel jp2 = new JPanel();
		jp2.setLayout(new FlowLayout());
		jtf = new JTextField(6);
		jp2.add(jtf);
		JPanel jp3 = new JPanel();

		ImageIcon icon = new ImageIcon("image/b1.gif");
		JLabel jl2 = new JLabel(icon, JLabel.RIGHT);
		jp3.add(jl2);
		JPanel jp4 = new JPanel();
		jp4.setLayout(new FlowLayout());
		JButton jb1 = new JButton("Insert");
		jb1.addActionListener(new ActionListener() {

			public void actionPerformed(ActionEvent e) {
				// TODO Auto-generated method stub
				DefaultMutableTreeNode parentNode = null;
				DefaultMutableTreeNode newNode = new DefaultMutableTreeNode(
						jtf.getText());
				newNode.setAllowsChildren(true);
				TreePath parentPath = wf.getTree().getSelectionPath();

				// 判断是否选择节点
				if (parentPath != null) {
					// 取得新节点的父节点
					parentNode = (DefaultMutableTreeNode) (parentPath
							.getLastPathComponent());
					System.out.println(parentNode.toString());

					// 由DefaultTreeModel的insertNodeInto（）方法增加新节点
					wf.getTreeModel().insertNodeInto(newNode, parentNode, parentNode
							.getChildCount());
					wf.getTree().scrollPathToVisible(new TreePath(newNode.getPath()));
					// tree的scrollPathToVisible()方法在使Tree会自动展开文件夹以便显示所加入的新节点。若没加这行则加入的新节点
					// 会被 包在文件夹中，你必须自行展开文件夹才看得到。
//					jTree1.scrollPathToVisible(new TreePath(newNode.getPath()));
				} else {
					JOptionPane.showMessageDialog(null, "请选择一个树接点！", "提示",
							JOptionPane.CANCEL_OPTION);
				}
			}

		});
		JButton jb2 = new JButton("Cancel");
		jb2.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				frame.dispose();
			}

		});
		jp4.add(jb1);
		jp4.add(jb2);
		c.add(jp4, BorderLayout.SOUTH);
		c.add(jp3, BorderLayout.WEST);
		c.add(jp2, BorderLayout.CENTER);
		c.add(jp1, BorderLayout.NORTH);
		frame.setTitle("insert property");
		frame.setSize(300, 200);
		frame.setVisible(true);
		frame.setResizable(false);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}

	public static void main(String args[]) {
		new Insert();
	}
}