Qt 4.8: httpwindow.h Example File (network/http/httpwindow.h)

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# httpwindow.h Example File

network/http/httpwindow.h

     /****************************************************************************
     **
     ** Copyright (C) 2015 The Qt Company Ltd.
     ** Contact: http://www.qt.io/licensing/
     **
     ** This file is part of the examples of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:BSD$
     ** You may use this file under the terms of the BSD license as follows:
     **
     ** "Redistribution and use in source and binary forms, with or without
     ** modification, are permitted provided that the following conditions are
     ** met:
     **   * Redistributions of source code must retain the above copyright
     **     notice, this list of conditions and the following disclaimer.
     **   * Redistributions in binary form must reproduce the above copyright
     **     notice, this list of conditions and the following disclaimer in
     **     the documentation and/or other materials provided with the
     **     distribution.
     **   * Neither the name of The Qt Company Ltd nor the names of its
     **     contributors may be used to endorse or promote products derived
     **     from this software without specific prior written permission.
     **
     **
     ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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     #ifndef HTTPWINDOW_H
     #define HTTPWINDOW_H

     #ifdef Q_WS_MAEMO_5
     #include <QWidget>
     #else
     #include <QDialog>
     #endif
     #include <QNetworkAccessManager>
     #include <QUrl>

     class QDialogButtonBox;
     class QFile;
     class QLabel;
     class QLineEdit;
     class QProgressDialog;
     class QPushButton;
     class QSslError;
     class QAuthenticator;
     class QNetworkReply;

     #ifdef Q_WS_MAEMO_5
     class HttpWindow : public QWidget
     #else
     class HttpWindow : public QDialog
     #endif
     {
         Q_OBJECT

     public:
         HttpWindow(QWidget *parent = 0);

         void startRequest(QUrl url);

     private slots:
         void downloadFile();
         void cancelDownload();
         void httpFinished();
         void httpReadyRead();
         void updateDataReadProgress(qint64 bytesRead, qint64 totalBytes);
         void enableDownloadButton();
         void slotAuthenticationRequired(QNetworkReply*,QAuthenticator *);
     #ifndef QT_NO_OPENSSL
         void sslErrors(QNetworkReply*,const QList<QSslError> &errors);
     #endif

     private:
         QLabel *statusLabel;
         QLabel *urlLabel;
         QLineEdit *urlLineEdit;
     #ifndef Q_WS_MAEMO_5
         QProgressDialog *progressDialog;
     #endif
         QPushButton *downloadButton;
         QPushButton *quitButton;
         QDialogButtonBox *buttonBox;

         QUrl url;
         QNetworkAccessManager qnam;
         QNetworkReply *reply;
         QFile *file;
         int httpGetId;
         bool httpRequestAborted;
     };

     #endif