ssh终端界面（编码中）-TabPanel

package com.cod.ui.terminal;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyVetoException;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.plaf.basic.BasicInternalFrameUI;

public class TabPanel extends BaseInternalFrame implements ActionListener, ChangeListener{

	/**
	 * 
	 */
	private static final long serialVersionUID = 4137740052748615188L;

	
	int index = 0;
	int newNumber = 1;
	JTabbedPane tabbedPane = null;
	
	public TabPanel() {
		setTitle("工作区");
		setResizable(false);
		setVisible(true);
		try {
			setSelected(true);
		}
		catch (PropertyVetoException ex) {
			ex.printStackTrace();
		}
		//取消最大化、最小化、关闭等按钮的显示，仅仅遗留供Drag移动Frame的窄标题栏
		putClientProperty("JInternalFrame.isPalette", Boolean.TRUE);
		//取消标题栏显示
		((BasicInternalFrameUI)this.getUI()).setNorthPane(null);
		
		
		Container contentPane = getContentPane();

		JLabel label1 = new JLabel(new ImageIcon(".\\icons\\flower.jpg"));
		JPanel panel1 = new JPanel();
		panel1.add(label1);

		JLabel label2 = new JLabel("Label 2", JLabel.CENTER);
		label2.setBackground(Color.pink);
		label2.setOpaque(true);
		JPanel panel2 = new JPanel();
		panel2.add(label2);

		JLabel label3 = new JLabel("Label 3", JLabel.CENTER);
		label3.setBackground(Color.yellow);
		label3.setOpaque(true);
		JPanel panel3 = new JPanel();
		panel3.add(label3);

		tabbedPane = new JTabbedPane();
		tabbedPane.setTabPlacement(JTabbedPane.TOP);// 设置标签置放位置。
		/*
		 * 由于ChangeEvent是属于Swing的事件，而不是AWT的事件，因此import Swing的事件类来处理
		 * ChangeEvent事件。
		 */
		tabbedPane.addChangeListener(this);
		tabbedPane.addTab("Picture", null, panel1, "图案");
		tabbedPane.addTab("Label 2", panel2);
		tabbedPane.addTab("Label 3", null, panel3, "label");
		tabbedPane.setEnabledAt(2, false);// 设Label 3标签为Disable状态
		JButton b = new JButton("新增标签");
		b.addActionListener(this);
		contentPane.add(b, BorderLayout.SOUTH);
		contentPane.add(tabbedPane, BorderLayout.CENTER);
		
		pack();
	}

	/*
	 * 实现ChangeListener方法，目的在使若左边的标签有点选过，右边的标签才会显示Enable状态。getSelectedIndex()方法可返回
	 * 目前点选标签的index值
	 * ，getTabCount()方法可返回JTabbedPane上目前共有几个标签，而setEnabledAt()方法则是使某个标签
	 * 的状态为Enable或Disable(true为Enable,false为Disable).
	 */
	public void stateChanged(ChangeEvent e) {
		if (index != tabbedPane.getSelectedIndex()) {
			if (index < tabbedPane.getTabCount() - 1)
				tabbedPane.setEnabledAt(index + 1, true);
		}
		index = tabbedPane.getSelectedIndex();
	}

	/*
	 * 实现ActionListener接口,当用户按下"新增标签"按钮时，就会在tabbedPane上新增一个Disable状态的标签。
	 */
	public void actionPerformed(ActionEvent e) {
		JPanel pane1 = new JPanel();
		JLabel label4 = new JLabel("new label" + newNumber, JLabel.CENTER);
		label4.setOpaque(true);
		pane1.add(label4);
		tabbedPane.addTab("new " + newNumber, pane1);
		tabbedPane.setEnabledAt(newNumber + 2, false);
		newNumber++;
		tabbedPane.validate();
	}
	
}