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# mainwindow.h Example File

network/torrent/mainwindow.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.
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     ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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     #ifndef MAINWINDOW_H
     #define MAINWINDOW_H

     #include <QList>
     #include <QStringList>
     #include <QMainWindow>

     #include "torrentclient.h"

     class QAction;
     class QCloseEvent;
     class QLabel;
     class QProgressDialog;
     class QSlider;

     class TorrentView;

     class MainWindow : public QMainWindow
     {
         Q_OBJECT

     public:
         MainWindow(QWidget *parent = 0);

         QSize sizeHint() const;
         const TorrentClient *clientForRow(int row) const;

     protected:
         void closeEvent(QCloseEvent *event);

     private slots:
         void loadSettings();
         void saveSettings();

         bool addTorrent();
         void removeTorrent();
         void pauseTorrent();
         void moveTorrentUp();
         void moveTorrentDown();

         void torrentStopped();
         void torrentError(TorrentClient::Error error);

         void updateState(TorrentClient::State state);
         void updatePeerInfo();
         void updateProgress(int percent);
         void updateDownloadRate(int bytesPerSecond);
         void updateUploadRate(int bytesPerSecond);

         void setUploadLimit(int bytes);
         void setDownloadLimit(int bytes);

         void about();
         void setActionsEnabled();
         void acceptFileDrop(const QString &fileName);

     private:
         int rowOfClient(TorrentClient *client) const;
         bool addTorrent(const QString &fileName, const QString &destinationFolder,
                         const QByteArray &resumeState = QByteArray());

         TorrentView *torrentView;
         QAction *pauseTorrentAction;
         QAction *removeTorrentAction;
         QAction *upActionTool;
         QAction *downActionTool;
         QSlider *uploadLimitSlider;
         QSlider *downloadLimitSlider;
         QLabel *uploadLimitLabel;
         QLabel *downloadLimitLabel;

         int uploadLimit;
         int downloadLimit;

         struct Job {
             TorrentClient *client;
             QString torrentFileName;
             QString destinationDirectory;
         };
         QList<Job> jobs;
         int jobsStopped;
         int jobsToStop;

         QString lastDirectory;
         QProgressDialog *quitDialog;

         bool saveChanges;
     };

     #endif