package WebChat;

import java.awt.*; 
import java.net.*; 
import java.awt.event.*; 
import java.io.*; 
import java.util.Hashtable; 

public class ChatArea extends Panel implements ActionListener,Runnable 
{ 
Socket socket=null; 
DataInputStream in=null; 
DataOutputStream out=null; 
Thread threadMessage=null; 
TextArea 談話顯示區,私聊顯示區=null; 
TextField 送出信息=null; 
Button 確定,刷新談話區,刷新私聊區; 
Label 提示條=null; 
String name=null; 
Hashtable listTable; 
List listComponent=null; 
Choice privateChatList; 
int width,height; 
public ChatArea(String name,Hashtable listTable,int width,int height) 
{ 
setLayout(null); 
setBackground(Color.orange); 
this.width=width; 
this.height=height; 
setSize(width,height); 
this.listTable=listTable; 
this.name=name; 
threadMessage=new Thread(this); 
談話顯示區=new TextArea(10,10); 
私聊顯示區=new TextArea(10,10); 
確定=new Button("送出信息到:"); 
刷新談話區=new Button("刷新談話區"); 
刷新私聊區=new Button("刷新私聊區"); 
提示條=new Label("雙擊聊天者可私聊",Label.CENTER); 
送出信息=new TextField(28); 
確定.addActionListener(this); 
送出信息.addActionListener(this); 
刷新談話區.addActionListener(this); 
刷新私聊區.addActionListener(this); 
listComponent=new List(); 
listComponent.addActionListener(this); 
privateChatList=new Choice(); 
privateChatList.add("大家(*)"); 
privateChatList.select(0); 

add(談話顯示區); 
談話顯示區.setBounds(10,10,(width-120)/2,(height-120)); 
add(私聊顯示區); 
私聊顯示區.setBounds(10+(width-120)/2,10,(width-120)/2,(height-120)); 
add(listComponent); 
listComponent.setBounds(10+(width-120),10,100,(height-160)); 
add(提示條); 
提示條.setBounds(10+(width-120),10+(height-160),110,40); 
Panel pSouth=new Panel(); 
pSouth.add(送出信息); 
pSouth.add(確定); 
pSouth.add(privateChatList); 
pSouth.add(刷新談話區); 
pSouth.add(刷新私聊區); 
add(pSouth); 
pSouth.setBounds(10,20+(height-120),width-20,60); 

} 
public void setName(String s) 
{ 
name=s; 
} 
public void setSocketConnection(Socket socket,DataInputStream in,DataOutputStream out) 
{ 
this.socket=socket; 
this.in=in; 
this.out=out; 
try 
{ 
threadMessage.start(); 
} 
catch(Exception e) 
{ 
} 
} 
public void actionPerformed(ActionEvent e) 
{ 

if(e.getSource()==確定||e.getSource()==送出信息) 
{ 
String message=""; 
String people=privateChatList.getSelectedItem(); 
people=people.substring(0,people.indexOf("(")); 
message=送出信息.getText(); 
if(message.length()>0) 
{ 
try { 
if(people.equals("大家")) 
{ 
out.writeUTF("公共聊天內容:"+name+"說:"+message); 
} 
else 
{ 
out.writeUTF("私人聊天內容:"+name+"悄悄地說:"+message+"#"+people); 
} 
} 
catch(IOException event) 
{ 
} 
} 
} 
else if(e.getSource()==listComponent) 
{ 
privateChatList.insert(listComponent.getSelectedItem(),0); 
privateChatList.repaint(); 
} 
else if(e.getSource()==刷新談話區) 
{ 
談話顯示區.setText(null); 
} 
else if(e.getSource()==刷新私聊區) 
{ 
私聊顯示區.setText(null); 
} 
} 
public void run() 
{ 
while(true) 
{ 
String s=null; 
try 
{ 
s=in.readUTF(); 
if(s.startsWith("聊天內容:")) 
{ 
String content=s.substring(s.indexOf(":")+1); 
談話顯示區.append("\n"+content); 
} 
if(s.startsWith("私人聊天內容:")) 
{ 
String content=s.substring(s.indexOf(":")+1); 
私聊顯示區.append("\n"+content); 
} 
else if(s.startsWith("聊天者:")) 
{ 
String people=s.substring(s.indexOf(":")+1,s.indexOf("性別")); 
String sex=s.substring(s.indexOf("性別")+2); 

listTable.put(people,people+"("+sex+")"); 

listComponent.add((String)listTable.get(people)); 
listComponent.repaint(); 
} 
else if(s.startsWith("用戶離線:")) 
{ 
String awayPeopleName=s.substring(s.indexOf(":")+1); 
listComponent.remove((String)listTable.get(awayPeopleName)); 
listComponent.repaint(); 
談話顯示區.append("\n"+(String)listTable.get(awayPeopleName)+"離線"); 
listTable.remove(awayPeopleName); 
} 
Thread.sleep(5); 
} 
catch(IOException e) 
{ 
listComponent.removeAll(); 
listComponent.repaint(); 
listTable.clear(); 
談話顯示區.setText("和服務器的連接已中斷\n必須刷新瀏覽器才能再次聊天"); 
break; 
} 
catch(InterruptedException e) 
{ 
} 
} 
} 
}