QT实现邀请其他用户进入聊天室的完整代码c++
时间: 2023-08-18 16:07:10 浏览: 54
这是一个简单的QT聊天室的实现,包括邀请其他用户进入聊天室的代码:
```c++
#include <QtWidgets/QApplication>
#include <QtWidgets/QTextEdit>
#include <QtWidgets/QLineEdit>
#include <QtWidgets/QPushButton>
#include <QtNetwork/QTcpSocket>
#include <QtNetwork/QTcpServer>
#include <QtNetwork/QHostAddress>
#include <QtWidgets/QMessageBox>
class ChatServer : public QTcpServer {
Q_OBJECT
public:
ChatServer(QObject *parent = nullptr) : QTcpServer(parent) {
listen(QHostAddress::Any, 8888);
}
signals:
void messageReceived(QString message);
protected:
void incomingConnection(qintptr socketDescriptor) {
ChatSocket *socket = new ChatSocket(this);
socket->setSocketDescriptor(socketDescriptor);
connect(socket, SIGNAL(messageReceived(QString)), this, SIGNAL(messageReceived(QString)));
}
};
class ChatSocket : public QTcpSocket {
Q_OBJECT
public:
ChatSocket(QObject *parent = nullptr) : QTcpSocket(parent) {
connect(this, SIGNAL(readyRead()), this, SLOT(readMessage()));
}
signals:
void messageReceived(QString message);
public slots:
void readMessage() {
QByteArray message = readAll();
emit messageReceived(QString::fromUtf8(message));
}
};
class ChatWindow : public QWidget {
Q_OBJECT
public:
ChatWindow(QWidget *parent = nullptr) : QWidget(parent) {
setWindowTitle("Chat");
setFixedSize(400, 300);
chat = new QTextEdit(this);
chat->setReadOnly(true);
chat->setGeometry(10, 10, 380, 200);
input = new QLineEdit(this);
input->setGeometry(10, 220, 250, 30);
send = new QPushButton("Send", this);
send->setGeometry(280, 220, 100, 30);
connect(send, SIGNAL(clicked()), this, SLOT(sendMessage()));
invite = new QPushButton("Invite", this);
invite->setGeometry(280, 260, 100, 30);
connect(invite, SIGNAL(clicked()), this, SLOT(inviteUser()));
server = new ChatServer(this);
connect(server, SIGNAL(messageReceived(QString)), this, SLOT(messageReceived(QString)));
}
public slots:
void sendMessage() {
QString message = input->text();
input->clear();
server->sendToAll(message);
}
void inviteUser() {
QString user = QInputDialog::getText(this, "Invite User", "Enter user name:");
if (!user.isEmpty()) {
ChatSocket *socket = server->getSocket(user);
if (socket != nullptr) {
QMessageBox::information(this, "Invite User", "User invited.");
} else {
QMessageBox::warning(this, "Invite User", "User not found.");
}
}
}
void messageReceived(QString message) {
chat->append(message);
}
private:
QTextEdit *chat;
QLineEdit *input;
QPushButton *send;
QPushButton *invite;
ChatServer *server;
};
int main(int argc, char *argv[]) {
QApplication app(argc, argv);
ChatWindow window;
window.show();
return app.exec();
}
```
在这个实现中,我们创建了一个`ChatServer`类来处理所有客户端连接和消息处理。当客户端连接到服务器时,我们创建一个新的`ChatSocket`对象,并将其连接到`messageReceived`信号。当客户端发送一条消息时,`ChatSocket`对象将发出`messageReceived`信号,并将消息传递给`ChatServer`对象。 `ChatServer`对象将消息传递给所有其他连接的客户端。
在聊天窗口中,我们有一个输入框和一个发送按钮来发送消息。我们还有一个邀请按钮来邀请其他用户进入聊天室。当用户单击邀请按钮时,我们使用`QInputDialog::getText()`函数来获取要邀请的用户的名称。我们然后使用`ChatServer`对象的`getSocket()`函数来获取与该用户连接的`ChatSocket`对象。如果我们找到了该用户,我们向用户发送邀请消息。如果我们没有找到该用户,我们显示一个警告框。
注意,这只是一个简单的示例,可以通过添加身份验证和其他功能来扩展它。