public void addUcf(Friend f)
{
UCFriend ucf = new UCFriend();
ucf.Frm = this;
ucf.CurFriend = f;
ucf.Top = this.pnFriendsList.Controls.Count * ucf.Height;
ucf.Width = ucf.Width - 30;
ucf.myDBClick += ucf_myDBClick;
this.pnFriendsList.Controls.Add(ucf);
}
public void listen()
{
UdpClient uc = new UdpClient(9527);
while (true)
{
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 0);
byte[] bmsg = uc.Receive(ref ipep);
IPAddress iip = ipep.Address;
string msg = Encoding.Default.GetString(bmsg);
string[] datas = msg.Split('|');
string msgHead = datas[0];
switch (msgHead)
{
case "LOGIN":
if (datas.Length != 4)
{
continue;
}
if (getMyIP().ToString()==ipep.Address.ToString())
{
continue;
}
Friend friend = new Friend();
int curIndex = Convert.ToInt32(datas[2]);
if (curIndex < 0 || curIndex >= _frm.ilHeadImages.Images.Count)
{
curIndex = 0;
}
friend.HeadImageIndex = curIndex;
friend.NickName = datas[1];
friend.Shuoshuo = datas[3];
friend.IP = ipep.Address;
object[] pars = new object[1];
pars[0] = friend;
_frm.Invoke(new delAddFriend(_frm.addUcf), pars);
//回发，告诉对方我也在，ALSOON|昵称|头像|说说
UdpClient ucAlsoon = new UdpClient();
string alsoonMsg = "ALSOON|" + getMyIP() + "|3|这个人很懒";
byte[] bAlsoonMsg = Encoding.Default.GetBytes(alsoonMsg);
ucAlsoon.Send(bAlsoonMsg, bAlsoonMsg.Length, new IPEndPoint(ipep.Address,9527));
break;
case "ALSOON":
if (datas.Length != 4)
{
continue;
}
if (getMyIP().ToString()==ipep.Address.ToString())
{
continue;
}
Friend alsoFriend = new Friend();
int alsoCurIndex = Convert.ToInt32(datas[2]);
if (alsoCurIndex < 0 || alsoCurIndex >= _frm.ilHeadImages.Images.Count)
{
alsoCurIndex = 0;
}
alsoFriend.HeadImageIndex = alsoCurIndex;
alsoFriend.NickName = datas[1];
alsoFriend.Shuoshuo = datas[3];
alsoFriend.IP = ipep.Address;
object[] alsoPars = new object[1];
alsoPars[0] = alsoFriend;
_frm.Invoke(new delAddFriend(_frm.addUcf), alsoPars);
break;
case "LOGOUT":
Panel pnlist = _frm.getPanel();
int deleIndex = 0;
//根据当前下线人的IP地址，找到pn中对应的用户控件对象，删除。
foreach (UCFriend ItUcf in pnlist.Controls)
{
if (ItUcf.CurFriend.IP.ToString()==ipep.Address.ToString())
{
pnlist.Controls.Remove(ItUcf);
break;
}
deleIndex++;
}
//让其下面的每一个用户控件对象依次上移
for (int i = deleIndex + 1; i < pnlist.Controls.Count; i++)
{
pnlist.Controls[i].Top = i * pnlist.Controls[0].Height;
}
break;
default:
break;
}
}
}
public FrmChat(Friend f)
{
InitializeComponent();
ucf.CurFriend = f;
}