Fix pluginselectdlg position

Fix peerlistwidget position
Fix mainwindow position

src/gui/mainwindow.cpp

@@ -385,7 +385,7 @@ MainWindow::MainWindow(QWidget *parent)
     qDebug("GUI Built");
 #ifdef Q_OS_WIN
     if (!pref->neverCheckFileAssoc() && (!Preferences::isTorrentFileAssocSet() || !Preferences::isMagnetLinkAssocSet())) {
-        if (QMessageBox::question(0, tr("Torrent file association"),
+        if (QMessageBox::question(this, tr("Torrent file association"),
                                   tr("qBittorrent is not the default application to open torrent files or Magnet links.\nDo you want to associate qBittorrent to torrent files and Magnet links?"),
                                   QMessageBox::Yes | QMessageBox::No, QMessageBox::Yes) == QMessageBox::Yes) {
             Preferences::setTorrentFileAssoc(true);
@@ -841,7 +841,7 @@ void MainWindow::askRecursiveTorrentDownloadConfirmation(BitTorrent::TorrentHand
     if (pref->recursiveDownloadDisabled()) return;
     // Get Torrent name
     QString torrentName = torrent->name();
-    QMessageBox confirmBox(QMessageBox::Question, tr("Recursive download confirmation"), tr("The torrent '%1' contains torrent files, do you want to proceed with their download?").arg(torrentName));
+    QMessageBox confirmBox(QMessageBox::Question, tr("Recursive download confirmation"), tr("The torrent '%1' contains torrent files, do you want to proceed with their download?").arg(torrentName), QMessageBox::NoButton, this);
     QPushButton *yes = confirmBox.addButton(tr("Yes"), QMessageBox::YesRole);
     /*QPushButton *no = */ confirmBox.addButton(tr("No"), QMessageBox::NoRole);
     QPushButton *never = confirmBox.addButton(tr("Never"), QMessageBox::NoRole);

src/gui/properties/peerlistwidget.cpp

@@ -258,9 +258,9 @@ void PeerListWidget::showPeerListMenu(const QPoint &)
             }
         }
         if (peerCount < peersList.length())
-            QMessageBox::information(0, tr("Peer addition"), tr("Some peers could not be added. Check the Log for details."));
+            QMessageBox::information(this, tr("Peer addition"), tr("Some peers could not be added. Check the Log for details."));
         else if (peerCount > 0)
-            QMessageBox::information(0, tr("Peer addition"), tr("The peers were added to this torrent."));
+            QMessageBox::information(this, tr("Peer addition"), tr("The peers were added to this torrent."));
         return;
     }
     if (act == banAct) {

src/gui/search/pluginselectdlg.cpp

@@ -208,9 +208,9 @@ void PluginSelectDlg::on_actionUninstall_triggered()
     }
 
     if (error)
-        QMessageBox::warning(0, tr("Uninstall warning"), tr("Some plugins could not be uninstalled because they are included in qBittorrent. Only the ones you added yourself can be uninstalled.\nThose plugins were disabled."));
+        QMessageBox::warning(this, tr("Uninstall warning"), tr("Some plugins could not be uninstalled because they are included in qBittorrent. Only the ones you added yourself can be uninstalled.\nThose plugins were disabled."));
     else
-        QMessageBox::information(0, tr("Uninstall success"), tr("All selected plugins were uninstalled successfully"));
+        QMessageBox::information(this, tr("Uninstall success"), tr("All selected plugins were uninstalled successfully"));
 }
 
 void PluginSelectDlg::enableSelection(bool enable)