chatwin.java

东软JAVA内部资料

package com.neusoft.course.gui;

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

public class ChatWin extends Frame{
	

	private Panel panel = new Panel();

	private TextField in = new TextField();

	private TextArea out = new TextArea();

	private Button bSend = new Button("send");

	private Button bClose = new Button("close");

	private MenuBar bar = new MenuBar();

	private Menu mFile = new Menu("File");

	private Menu mHelp = new Menu("Help");

	private MenuItem miClose = new MenuItem("close");

	private MenuItem miAbout = new MenuItem("about");

	public ChatWin() {
		super("Chat");
		panel.setPreferredSize(new Dimension(60, 10));
		this.add(panel, BorderLayout.EAST);
		this.add(in, BorderLayout.SOUTH);
		this.add(out, BorderLayout.CENTER);
		panel.add(bSend);
		bSend.setActionCommand("send");
		panel.add(bClose);
		bClose.setActionCommand("close");
		panel.setBackground(Color.LIGHT_GRAY);

		bar.add(mFile);		
		bar.add(mHelp);
		mFile.add(miClose);
		miClose.setActionCommand("close");
		mHelp.add(miAbout);
		miAbout.setActionCommand("about");
		this.setMenuBar(bar);

		this.init();
		this.setSize(600, 450);
		this.setVisible(true);
	}

	private void init() {
		WindowHandler wHandler = new WindowHandler(this);
		this.addWindowListener(wHandler);
		ActionHandler aHandler = new ActionHandler(this);
		bClose.addActionListener(aHandler);
		bSend.addActionListener(aHandler);
		miClose.addActionListener(aHandler);
		miAbout.addActionListener(aHandler);
		in.addActionListener(aHandler);
		
	}
	
	public void close() {
		this.dispose();
	}
	
	public void about() {
		JOptionPane.showMessageDialog(this,"Chat v1.0");
	}
	
	public void send() {
		String sText = in.getText();
		out.append("\n" + sText);
		in.setText("");
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		ChatWin win = new ChatWin();
	}
	
	

}

class WindowHandler extends WindowAdapter {
	private ChatWin win;

	public WindowHandler(ChatWin win) {
		this.win = win;
	}

	public void windowClosing(WindowEvent e) {
		// TODO Auto-generated method stub
		win.close();
	}
}

class ActionHandler implements ActionListener {
	private ChatWin win;

	public ActionHandler(ChatWin win) {
		this.win = win;
	}

	public void actionPerformed(ActionEvent e) {
		String action = e.getActionCommand();
		if (action.equals("close")) {
			win.close();
		} else if (action.equals("about")) {
			win.about();
		} else if (action.equals("send")) {
			win.send();
		} else {
			win.send();
		}
	}
}