mainframe.java

《Java核心技术应用开发》电子工业出版社书籍源代码

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

/**
 *  StoneForest应用的主框架
 */
public class MainFrame extends JFrame {

	/**
	 *  tabbed pane组件
	 */
	protected JTabbedPane tabbedPane;
	
	/**
	 *  音乐CD panel
	 */
	protected MusicPanel musicPanel;
	
	
	/**
	 *  默认构造方法
	 */
	public MainFrame() {
	
		setTitle("欢迎使用StoneForest应用! ");
		
		Container container = this.getContentPane();
		container.setLayout(new BorderLayout());
		
		tabbedPane = new JTabbedPane();

		musicPanel = new MusicPanel(this);
		tabbedPane.addTab("音乐", musicPanel);

		container.add(BorderLayout.CENTER, tabbedPane);

		JMenuBar myMenuBar = new JMenuBar();
		
		JMenu fileMenu = new JMenu("文件");

		JMenu openMenu = new JMenu("打开");
			JMenuItem localMenuItem = new JMenuItem("本地硬盘...");
			openMenu.add(localMenuItem);

			JMenuItem networkMenuItem = new JMenuItem("网络...");
			openMenu.add(networkMenuItem);

			JMenuItem webMenuItem = new JMenuItem("互联网...");
			openMenu.add(webMenuItem);
		fileMenu.add(openMenu);

		JMenuItem saveMenuItem = new JMenuItem("保存");
		fileMenu.add(saveMenuItem);
		
		JMenuItem exitMenuItem = new JMenuItem("退出");
		fileMenu.add(exitMenuItem);
		
		myMenuBar.add(fileMenu);
		
		exitMenuItem.addActionListener(new ExitActionListener());
		
				
		setupLookAndFeelMenu(myMenuBar);
		
		
		JMenu helpMenu = new JMenu("帮助");
		JMenuItem aboutMenuItem = new JMenuItem("关于");
		helpMenu.add(aboutMenuItem);

		myMenuBar.add(helpMenu);
		
		aboutMenuItem.addActionListener(new AboutActionListener());
		
		this.setJMenuBar(myMenuBar);
		
		setSize(500, 400);
		setLocation(100, 100);
		
		this.addWindowListener(new WindowCloser());
	
		fileMenu.setMnemonic('f');
		exitMenuItem.setMnemonic('x');
		helpMenu.setMnemonic('h');
		aboutMenuItem.setMnemonic('a');
		
		//设定快捷键
		exitMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X, ActionEvent.CTRL_MASK));

		saveMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, ActionEvent.CTRL_MASK));
		
		aboutMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A, ActionEvent.CTRL_MASK));
	}

	/**
	 *  设定和选择外观
	 *
	 */
	protected void setupLookAndFeelMenu(JMenuBar theMenuBar) {

		UIManager.LookAndFeelInfo[] lookAndFeelInfo = UIManager.getInstalledLookAndFeels();
		JMenu lookAndFeelMenu = new JMenu("选项");
		JMenuItem anItem = null;
		LookAndFeelListener myListener = new LookAndFeelListener();
		
		try {
			for (int i=0; i < lookAndFeelInfo.length; i++) {
				anItem = new JMenuItem(lookAndFeelInfo[i].getName() + " 外观");
				anItem.setActionCommand(lookAndFeelInfo[i].getClassName());
				anItem.addActionListener(myListener);

				lookAndFeelMenu.add(anItem);
			}
		}
		catch (Exception e) {
			e.printStackTrace();
		}
		theMenuBar.add(lookAndFeelMenu);
	}

	
	/**
	 *  退出方法.
	 */
	public void exit() {

		setVisible(false);
		dispose();
		System.exit(0);
	
	}

	/**
	 *  "退出"事件处理内部类.
	 */	
	class ExitActionListener implements ActionListener {
	
		public void actionPerformed(ActionEvent event) {
		
			exit();
		}
	}
	
	/**
	 *  "关闭窗口"事件处理内部类.
	 */
	class WindowCloser extends WindowAdapter {

		/**
		 *  let's call our exit() method defined above  
		 */
		public void windowClosing(WindowEvent e) {

			exit();
		}
	}

	/**
	 *  "外观"选择监听类
	 *
	 */
	class LookAndFeelListener implements ActionListener {
	
		public void actionPerformed(ActionEvent event) {

			String className = event.getActionCommand();		

			try {
				UIManager.setLookAndFeel(className);
				
				SwingUtilities.updateComponentTreeUI(MainFrame.this);				
			}
			catch (Exception e) {
				e.printStackTrace();
			}
		}
	}
	
	
	/**
	 *  "关于"菜单监听类
	 */
	 class AboutActionListener implements ActionListener {
	 
	 	public void actionPerformed(ActionEvent event) {
			
			String msg = "StoneForest 超值享受!";
			JOptionPane.showMessageDialog(MainFrame.this, msg);
		}
	 }
}