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+/*
+ * This file is part of the KFTPGrabber project
+ *
+ * Copyright (C) 2003-2006 by the KFTPGrabber developers
+ * Copyright (C) 2003-2006 Jernej Kos <kostko@jweb-network.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * is provided AS IS, WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, and
+ * NON-INFRINGEMENT. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ *
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL. If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so. If you
+ * do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source
+ * files in the program, then also delete it here.
+ */
+#ifndef KFTPQUEUEQUEUEGROUP_H
+#define KFTPQUEUEQUEUEGROUP_H
+
+#include <qguardedptr.h>
+#include <qptrlist.h>
+
+namespace KFTPQueue {
+
+class QueueObject;
+class Transfer;
+
+/**
+ * This class manages a group of child queue objects so they get
+ * executed in the proper order.
+ *
+ * Note that all child transfers that are grouped together must be
+ * part of the same session, otherwise unexpected behavior may
+ * ocurr.
+ *
+ * @author Jernej Kos
+ */
+class QueueGroup : public QObject {
+Q_OBJECT
+public:
+ /**
+ * Class constructor.
+ *
+ * @param object The queue object to manage
+ */
+ QueueGroup(QueueObject *object);
+
+ /**
+ * Reset the group.
+ */
+ void reset();
+
+ /**
+ * Execute the next transfer in list.
+ *
+ * @return 1 if the transfer has been executed, 0 or -1 otherwise
+ */
+ int executeNextTransfer();
+public slots:
+ /**
+ * Increment the current iterator and call executeNextTransfer method.
+ */
+ void incrementAndExecute();
+private:
+ QueueObject *m_object;
+ QPtrListIterator<QueueObject> m_childIterator;
+ QGuardedPtr<Transfer> m_lastTransfer;
+ bool m_directories;
+signals:
+ /**
+ * This signal gets emitted when there is nothing more to do in the
+ * queue.
+ */
+ void done();
+
+ /**
+ * This signal gets emitted when the group processing is interrupted
+ * due to abort.
+ */
+ void interrupted();
+};
+
+}
+
+#endif