p2p聊天室 示例源码(LocalChatRoom)

using System;using System.Collections.Generic;using System.Windows.Forms;using System.Text.RegularExpressions;namespace LocalChat{ public partial class Form1 : Form { private Peer peer; private bool connected = false; private bool messageBoxKeyPressed = false; private bool usernameBoxKeyPressed = false; public Form1() { InitializeComponent(); peer = new Peer(); listBox1.DataSource = new BindingSource(peer.ConnectedClients.Keys, null); //listBox1.DisplayMember = "Key"; //Username //listBox1.ValueMember = "Value"; //IPAdress button2.Enabled = false; //richTextBox1.Text = "You are using LocalChat v0.2 by MCL & M4a1x"; richTextBox1.Text = "[" DateTime.Now.ToString("HH:mm:ss") "] You are using LocalChat v0.2 by M4a1x & MCL"; //A little bit of credit label2.Text = "Connected users: 0"; peer.MessageRecieved = new MessageEventHandler(peer_MessageRecieved); peer.ConnectedClientsChanged = new ConnectedClientsChangedEventHandler(peer_ConnectedClientsChanged); } void peer_ConnectedClientsChanged() { if (this.InvokeRequired) this.Invoke(new ConnectedClientsChangedEventHandler(peer_ConnectedClientsChanged), new object[] { }); listBox1.DataSource = null; listBox1.DataSource = new BindingSource(peer.ConnectedClients, null); listBox1.DisplayMember = "Key"; //Username listBox1.ValueMember = "Value"; //IPAdress label2.Text = "Connected users: " (listBox1.Items.Count - 1); } private void peer_MessageRecieved(string sender, string recipient, string message) { if (this.InvokeRequired) { this.Invoke(new MessageEventHandler(peer_MessageRecieved), new object[] { sender, recipient, message }); return; } if (sender == null) richTextBox1.AppendText("\n" "[" DateTime.Now.ToString("HH:mm:ss") "] " message); else { if (recipient == null) richTextBox1.AppendText("\n" "[" DateTime.Now.ToString("HH:mm:ss") "] " sender ": " message); else richTextBox1.AppendText("\n" "[" DateTime.Now.ToString("HH:mm:ss") "] " sender " -> " recipient ": " message); } richTextBox1.SelectionStart = richTextBox1.Text.Length; richTextBox1.ScrollToCaret(); } private void button1_Click(object sender, EventArgs e) { if (!connected) { Regex regex = new Regex(@"\S"); //Match not whitespace Match match = regex.Match(textBox1.Text); //User should type at least 1 non-whitespace character if (usernameBoxKeyPressed && match.Success) { if (peer.requestConnection(textBox1.Text)) { button1.Text = "Disconnect"; button2.Enabled = true; connected = true; label1.Text = "Connected as: " textBox1.Text; textBox1.Visible = false; label1.Visible = true; textBox2.Enabled = true; } else MessageBox.Show("Error starting the local server!\n\nPlease make sure there's no other application running on port 1337 and 7331!", "LocalChat", MessageBoxButtons.OK, MessageBoxIcon.Error); } else MessageBox.Show("Please enter a valid Username!", "LocalChat", MessageBoxButtons.OK, MessageBoxIcon.Warning); } else { peer.disconnect(); button1.Text = "Connect"; button2.Enabled = false; connected = false; textBox1.Visible = true; label1.Visible = false; textBox2.Enabled = false; } } private void button2_Click(object sender, EventArgs e) { sendMessage(textBox2.Text); } private void textBox2_KeyPress(object sender, KeyPressEventArgs e) { messageBoxKeyPressed = true; if (e.KeyChar == (char)Keys.Enter) { sendMessage(textBox2.Text); e.Handled = true; } } private void textBox1_KeyPress(object sender, KeyPressEventArgs e) { usernameBoxKeyPressed = true; } private void sendMessage(string message) { if (connected) { if (messageBoxKeyPressed && message != "") { if (listBox1.SelectedIndex == 0) peer.sendMessage(textBox2.Text); else { var listsel = (KeyValuePair<string, string>)listBox1.SelectedItem; peer.sendMessage(textBox2.Text, listsel.Value); } textBox2.Text = ""; } } } private void textBox2_Enter(object sender, EventArgs e) { if (textBox2.Text == "Enter your message here..." && !messageBoxKeyPressed) textBox2.Text = ""; } private void textBox2_Leave(object sender, EventArgs e) { if (textBox2.Text == "") { textBox2.Text = "Enter your message here..."; messageBoxKeyPressed = false; } } private void textBox1_Enter(object sender, EventArgs e) { if (textBox1.Text == "Enter an username..." && !usernameBoxKeyPressed) textBox1.Text = ""; } private void textBox1_Leave(object sender, EventArgs e) { if (textBox1.Text == "") { textBox1.Text = "Enter an username..."; usernameBoxKeyPressed = false; } } private void button3_Click(object sender, EventArgs e) { MessageBox.Show("Coming soon", "LocalChat", MessageBoxButtons.OK, MessageBoxIcon.Information); } }}