Finish forwarder status information dispaly

- Add channel display
- Add strategy choice display

Change-Id: I4e1923b8a0ed0220150c71a3736f6fd618c30abe
diff --git a/src/channel-status.hpp b/src/channel-status.hpp
new file mode 100644
index 0000000..45658b3
--- /dev/null
+++ b/src/channel-status.hpp
@@ -0,0 +1,95 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2017, Regents of the University of California,
+ *
+ * This file is part of NFD Control Center.  See AUTHORS.md for complete list of NFD
+ * authors and contributors.
+ *
+ * NFD Control Center 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 3 of the License, or (at your option) any later version.
+ *
+ * NFD Control Center is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with NFD
+ * Control Center, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef NCC_CHANNEL_STATUS_HPP
+#define NCC_CHANNEL_STATUS_HPP
+
+#include <QtCore/QAbstractListModel>
+#include <QtCore/QStringList>
+
+#include <ndn-cxx/mgmt/nfd/channel-status.hpp>
+
+namespace ndn {
+
+class ChannelStatusItem
+{
+public:
+  ChannelStatusItem(const QString& channel)
+    : m_channel(channel)
+  {
+  }
+
+  const QString&
+  channel() const
+  {
+    return m_channel;
+  }
+
+private:
+  QString m_channel;
+};
+
+
+class ChannelStatusModel : public QAbstractListModel
+{
+  Q_OBJECT
+
+signals:
+  void
+  onDataReceived(std::vector<ndn::nfd::ChannelStatus> status);
+
+public:
+
+  enum ChannelStatusRoles {
+    ChannelRole = Qt::UserRole + 1
+  };
+
+  explicit
+  ChannelStatusModel(QObject* parent = 0);
+
+  int
+  rowCount(const QModelIndex& parent = QModelIndex()) const;
+
+  void
+  addItem(const ChannelStatusItem& item);
+
+  QVariant
+  data(const QModelIndex& index, int role) const;
+
+  QHash<int, QByteArray>
+  roleNames() const;
+
+  void
+  clear();
+
+  void
+  onTimeout();
+
+private slots:
+
+  void
+  updateStatus(std::vector<ndn::nfd::ChannelStatus> status);
+
+private:
+  QList<ChannelStatusItem> m_items;
+};
+
+} // namespace ndn
+
+#endif // NCC_CHANNEL_STATUS_HPP