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# ftpwindow.h Example File
network/ftp/ftpwindow.h

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     #ifndef FTPWINDOW_H
     #define FTPWINDOW_H

     #include <QDialog>
     #include <QHash>

     class E_CLASS(QDialogButtonBox;
     class E_CLASS(QFile;
     class E_CLASS(QFtp;
     class E_CLASS(QLabel;
     class E_CLASS(QLineEdit;
     class E_CLASS(QTreeWidget;
     class E_CLASS(QTreeWidgetItem;
     class E_CLASS(QProgressDialog;
     class E_CLASS(QPushButton;
     class E_CLASS(QUrlInfo;

     class FtpWindow : public QDialog
     {
         Q_OBJECT

     public:
         FtpWindow(QWidget *parent = 0);
         QSize sizeHint() const;

     private slots:
         void connectOrDisconnect();
         void downloadFile();
         void cancelDownload();

         void ftpCommandFinished(int commandId, bool error);
         void addToList(const QUrlInfo &urlInfo);
         void processItem(QTreeWidgetItem *item, int column);
         void cdToParent();
         void updateDataTransferProgress(qint64 readBytes,
                                         qint64 totalBytes);
         void enableDownloadButton();

     private:
         QLabel *ftpServerLabel;
         QLineEdit *ftpServerLineEdit;
         QLabel *statusLabel;
         QTreeWidget *fileList;
         QPushButton *cdToParentButton;
         QPushButton *connectButton;
         QPushButton *downloadButton;
         QPushButton *quitButton;
         QDialogButtonBox *buttonBox;
         QProgressDialog *progressDialog;

         QHash<QString, bool> isDirectory;
         QString currentPath;
         QFtp *ftp;
         QFile *file;
     };

     #endif