#ifndef TRIPPLANNER_H#define TRIPPLANNER_H#include <QDialog>#include <QTcpSocket>#include "ui_tripplanner.h"class TripPlanner : public QDialog, public Ui::TripPlanner{    Q_OBJECTpublic:    TripPlanner(QWidget *parent = 0);private slots:    void connectToServer();    void sendRequest();    void updateTableWidget();    void stopSearch();    void connectionClosedByServer();    void error();private:    void closeConnection();    QTcpSocket tcpSocket;    quint16 nextBlockSize;};#endif