A P2P chat application client for local area network (Windows) developed using Qt5 and C++.
-
Qt5/C++ development
-
Qtcreator/Qtquick design UI
3.Qml+Qss beautify the interface
-
Customize Qtsocket list (array container) to maintain multi-party P2P connection
-
Rewrite the mouse click event to realize the small right-click menu of the friend list
-
Use Qtquick to maintain a message panel list for each friend who is chatting
-
Use MapSignal to pass custom parameters to the SLOT function of connect to switch the corresponding Socket
-
Add/remove friends
-
Personal/friend business card (avatar, nickname, profile)
-
Send a heartbeat packet to the intermediate server to maintain the state
-
Multi-branch P2P chat
-
File transfer (confirmation mechanism) (larger files can be transferred)
-
One-to-one chat message panel
2. QSignalMapper does the mapping of binding events (solves the problem that SLOT cannot pass parameters)
ServerMapper->setMapping(LinkInfo.ListTcpsocket.last(),LinkInfo.ListTcpsocket.count());
connect(LinkInfo.ListTcpsocket.last(), SIGNAL(readyRead()), ServerMapper, SLOT(map()));
connect(ServerMapper, SIGNAL(mapped(int)), this, SLOT(changeTempTcpsocket(int))); QByteArray data;
data.resize(sizeof(LoginMessage));
QBuffer buffer(&data);
buffer.open(QIODevice::WriteOnly);
QDataStream out(&buffer);
LoginMessage Message;
Message.type=UsrLogin;
qDebug()<<user_id <<user_password<<endl;
Message.userid=user_id;
Message.password=user_password;
Message.Message="I want to login in,please.";
out<<Message.type<<Message.userid<<Message.password<<Message.Message<<true;
buffer.close(); QByteArray data = this->tcpSocket->readAll();
QBuffer buf(&data);
buf.open(QIODevice::ReadOnly);
QDataStream in(&buf);4. Client socket explanation: tcpSocket is used to connect to the server; tempP2P is a socket that dynamically receives background messages; nowP2P sockets handle requests from friends; actP2P actively sends requests
5. The process of sending and receiving files: the emitFile type message sends and receives the detailed information of the file. After the other party receives it, it creates the corresponding file and opens the progress bar panel; File type messages are used to send or receive file content and update the progress bar; accessFile type messages Responsible for sending or receiving confirmation, indicating that the reception of this group of data is complete and waiting for the next group of data.
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent