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class Socket : public QTcpSocket
{
  Q_OBJECT
public:
   ClientServer *window;
   Socket(int sockDeskr,QObject *parent);
public slots:
   void read();
   void read_error();
   void deleteLater();
   void write();

};

class Thread : public QThread
{
  Q_OBJECT
public:
  ClientServer *window;
  Thread(int sockDeskr,QObject *parent);
  void run(); 
private:
   int sockDeskr;
};

Socket::Socket(int sockDeskr,QObject *parent):QTcpSocket(parent)
{
    window=(ClientServer *)parent;
     this->setSocketDeskriptor(sockDeskr);
  connect(this,SIGNAL(readyRead()),this,SLOT(read()));
  connect(this,SIGNAL(error(QAbstractSocket::SocketError)),this,SLOT(read_error()));
  connect(window->pushButton_3,SIGNAL(clicked()),this,SLOT(write()));
}

void Socket::read()
{
  QByteArray bar=this->readAll();
          QString str;
          str.append(bar);
          window->textEdit->setText(str);  
}

void Socket::read_error()
{
  QMessageBox *mb=new QMessageBox(this);
          mb->setText(codec->toUnicode("Ошибка сокета: ")+this->errorString());
          mb->exec();
}

void Socket::write()
{
  QByteArray bar;
  bar.append(window->textEdit->toPlainText());
  this->write(bar);
}

/////////////////////////////////////////////////////////<-----------Thread-------->/////////////////////////
void Thread::Thread(int sockDeskr,QObject *parent)
{
  this->sockDeskr=sockDeskr;
  window=(ClientServer *)parent;
}

void Thread::run()
{
Socket *soc=new Socket(sockDeskr,window);
}

    tB->cB->moveToThread(tB);
    tA->cA->moveToThread(tA);

void Thread::Thread(int sockDeskr,QObject *parent)
{
  this->sockDeskr=sockDeskr;
  window=(ClientServer *)parent;
}

void Thread::run()
{
Socket *soc=new Socket(sockDeskr,window);
}
//...
QTcpSocket* socket = new QTcpSocket(this);
socket->connectToHost(...);
Thread* thread = new Thread(socket->socketDescriptor(), this);