pwpocz549/ChatPanel.java

package chatpanel;		//测试

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.border.Border;
import javax.swing.border.EtchedBorder;


public class ChatPanel extends JFrame
{
	JButton send,connect,disconnect;
	JList list;
	JLabel userlabel,textlabel;
	JTextField textfield;
	JTextArea textarea;
	JPanel uppanel,downpanel,userpanel,listtitle,texttitle,textpanel,sendpanel,serverpanel;
	JScrollPane listpanel,areapanel;
	
	Border border = new EtchedBorder(Color.BLUE, Color.yellow); //各面板组件镶的边的类型。
	
	public ChatPanel() 
	{
		//创建用户列表标题
		userlabel = new JLabel("用户列表",userlabel.CENTER);
		listtitle = new JPanel();
		listtitle.setBackground(Color.LIGHT_GRAY);
		listtitle.add(userlabel);
		
		//创建用户列表
		list = new JList();
		//list.setBackground(Color.LIGHT_GRAY);
		Vector<String> vUserName = new Vector<String>();//向量列表，< >向量列表里面对应的对象的类型
    	for (int i = 1; i < 30; i++)
		{
			vUserName.add("用户"+i);
		}
    	list.setListData(vUserName); // 往这个列表对象中放入要显示的数据。
    	list.setFixedCellWidth(80);  //设置默认宽度
    	
    	//将用户列表加入用户列表面板
		listpanel = new JScrollPane(list);
		
		listpanel.setPreferredSize(new Dimension(120,0));
		
		
		//将列表标题和用户列表加入用户列表界面
		userpanel = new JPanel();
		userpanel.setLayout(new BorderLayout());
		userpanel.add(listtitle,BorderLayout.NORTH);
		userpanel.add(listpanel,BorderLayout.CENTER);
		userpanel.setBorder(border);
		
		//创建显示信息界面
		textlabel = new JLabel("用户聊天界面");
		texttitle = new JPanel();
		texttitle.setBackground(Color.LIGHT_GRAY);
		texttitle.add(textlabel);
		
		//聊天信息面板
	    textarea = new JTextArea("来自用户1的消息：hello!");
	    textarea.setEditable(false);
	    textarea.setLineWrap(true);  //设置换行策略
	    areapanel = new JScrollPane(textarea);
		
	    textpanel = new JPanel();
	    textpanel.setLayout(new BorderLayout());
	    textpanel.add(texttitle,BorderLayout.NORTH);
	    textpanel.add(areapanel,BorderLayout.CENTER);
	    textpanel.setBorder(border);
		
		
		//将用户列表界面和显示信息窗口加入uppanel面板
		uppanel = new JPanel();
		uppanel.setLayout(new BorderLayout());
		uppanel.add(userpanel,BorderLayout.WEST);
		uppanel.add(textpanel,BorderLayout.CENTER);
		//uppanel.setBorder(border);
		
		//创建发送信息面板sendpanel
		send = new JButton("发送");
		textfield = new JTextField("请输入信息......",30);
		sendpanel = new JPanel();
		sendpanel.setLayout(new BorderLayout(0,10));
		sendpanel.add(textfield,BorderLayout.CENTER);
		sendpanel.add(send,BorderLayout.EAST);
		
		
		//创建服务器面板serverpanel
		connect = new JButton("连接服务器");
		disconnect = new JButton("断开服务器");
		serverpanel = new JPanel();
		serverpanel.setBackground(Color.LIGHT_GRAY);
		serverpanel.setLayout(new FlowLayout(FlowLayout.CENTER,50,10));
		serverpanel.add(connect);
		serverpanel.add(disconnect);
		
		//将发送信息面板和服务器面板加入downpanel面板
		downpanel = new JPanel();	
		downpanel.setLayout(new GridLayout(2,1));
		downpanel.add(sendpanel);
		downpanel.add(serverpanel);
		downpanel.setBorder(border);
		
		registerListener(); //注册监听器
	}
	
	public static void main(String[] args) 
	{
		ChatPanel chatpanel = new ChatPanel();
		chatpanel.lunchframe();
	}

	public void lunchframe() 
	{
		JFrame jframe = new JFrame("聊天室界面");
		jframe.setSize(600, 600);
		jframe.setResizable(false);
		jframe.setLocation((Toolkit.getDefaultToolkit().getScreenSize().width-jframe.getWidth())/2,
				(Toolkit.getDefaultToolkit().getScreenSize().height-jframe.getHeight())/2);
		
		jframe.setLayout(new BorderLayout());
		jframe.add(uppanel,BorderLayout.CENTER);
		jframe.add(downpanel,BorderLayout.SOUTH);
		
		jframe.setDefaultCloseOperation(EXIT_ON_CLOSE);
		jframe.setVisible(true);
		
	}

	public void registerListener()
	{
	    send.addActionListener(new Controller()) ; 
	    connect.addActionListener(new Controller()) ;   
	    disconnect.addActionListener(new Controller()) ;
	    textfield.addActionListener(new Controller()) ;
	}
	
	public class Controller implements ActionListener
	{

	    public void actionPerformed(ActionEvent e)
	    {
	    	if((e.getSource())instanceof JButton)
	    	{
	    		JButton button = (JButton)e.getSource();
	    		if(button == send)
	    		{
	    			System.out.println("发送消息");
	    		}
	    		else if(button == connect)
	    		{

	    			System.out.println("连接服务器");
	    		}
    			else if(button == disconnect)
    			{

    				System.out.println("断开服务器");
    			}
    		}
    		else 
    		{
			   //信息编辑框发出的事件处理	
				System.out.println("未知事件处理");
			}
    			 
    	}

    }    
}