New Qt5-based implementation

Change-Id: I1a165aacd8c8254a250a14a2024fecf50c986abe
diff --git a/qt5/forwarder-status.cpp b/qt5/forwarder-status.cpp
new file mode 100644
index 0000000..300c29e
--- /dev/null
+++ b/qt5/forwarder-status.cpp
@@ -0,0 +1,135 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2014, 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/>.
+ */
+
+#include "forwarder-status.hpp"
+
+#include <ndn-cxx/face.hpp>
+#include <ndn-cxx/name.hpp>
+#include <ndn-cxx/interest.hpp>
+#include <ndn-cxx/management/nfd-fib-entry.hpp>
+#include <ndn-cxx/management/nfd-face-status.hpp>
+#include <ndn-cxx/management/nfd-forwarder-status.hpp>
+
+#ifdef WAF
+#include "forwarder-status.moc"
+// #include "forwarder-status.cpp.moc"
+#endif
+
+namespace ndn {
+
+ForwarderStatusModel::ForwarderStatusModel(Face& face, QObject* parent/* = 0*/)
+  : QAbstractListModel(parent)
+  , m_face(face)
+{
+  connect(this, SIGNAL(onDataReceived(ndn::shared_ptr<const ndn::Data>)), this,
+          SLOT(updateStatus(ndn::shared_ptr<const ndn::Data>)));
+}
+
+int
+ForwarderStatusModel::rowCount(const QModelIndex& parent/* = QModelIndex()*/) const
+{
+  return m_items.count();
+}
+
+void
+ForwarderStatusModel::addItem(const ForwarderStatusItem& item)
+{
+  beginInsertRows(QModelIndex(), rowCount(), rowCount());
+  m_items << item;
+  endInsertRows();
+}
+
+QVariant
+ForwarderStatusModel::data(const QModelIndex& index, int role) const
+{
+  if (index.row() < 0 || index.row() >= m_items.count()) {
+    return QVariant();
+  }
+
+  const ForwarderStatusItem& item = m_items.at(index.row());
+  if (role == TypeRole) {
+    return item.type();
+  }
+  else if (role == ValueRole) {
+    return item.value();
+  }
+  return QVariant();
+}
+
+QHash<int, QByteArray>
+ForwarderStatusModel::roleNames() const
+{
+  QHash<int, QByteArray> roles;
+  roles[TypeRole] = "type";
+  roles[ValueRole] = "value";
+  return roles;
+}
+
+Q_INVOKABLE void
+ForwarderStatusModel::fetchVersionInformation()
+{
+  Interest interest("/localhost/nfd/status");
+  interest.setMustBeFresh(true);
+  m_face.expressInterest(interest,
+                         bind(&ForwarderStatusModel::afterFetchedVersionInformation, this, _2),
+                         bind(&ForwarderStatusModel::onTimeout, this, _1));
+}
+
+void
+ForwarderStatusModel::clear()
+{
+  beginResetModel();
+  m_items.clear();
+  endResetModel ();
+}
+
+void
+ForwarderStatusModel::afterFetchedVersionInformation(const Data& data)
+{
+  emit onDataReceived(data.shared_from_this());
+}
+
+void
+ForwarderStatusModel::updateStatus(shared_ptr<const Data> data)
+{
+  beginResetModel();
+  m_items.clear();
+  nfd::ForwarderStatus status(data->getContent());
+  addItem(ForwarderStatusItem("version",       QString::number(status.getNfdVersion())));
+  addItem(ForwarderStatusItem("startTime",     QString::fromStdString(time::toIsoString(status.getStartTimestamp()))));
+  addItem(ForwarderStatusItem("currentTime",   QString::fromStdString(time::toIsoString(status.getCurrentTimestamp()))));
+  addItem(ForwarderStatusItem("nNameTreeEntries", QString::number(status.getNNameTreeEntries())));
+  addItem(ForwarderStatusItem("nFibEntries",   QString::number(status.getNFibEntries())));
+  addItem(ForwarderStatusItem("nPitEntries",   QString::number(status.getNPitEntries())));
+  addItem(ForwarderStatusItem("nMeasurementsEntries", QString::number(status.getNMeasurementsEntries())));
+  addItem(ForwarderStatusItem("nCsEntries",    QString::number(status.getNCsEntries())));
+  addItem(ForwarderStatusItem("nInInterests",  QString::number(status.getNInInterests())));
+  addItem(ForwarderStatusItem("nOutInterests", QString::number(status.getNOutInterests())));
+  addItem(ForwarderStatusItem("nInDatas",      QString::number(status.getNInDatas())));
+  addItem(ForwarderStatusItem("nOutDatas",     QString::number(status.getNOutDatas())));
+  endResetModel();
+}
+
+void
+ForwarderStatusModel::onTimeout(const Interest& interest)
+{
+  std::cerr << "Request timed out (should not really happen)" << std::endl;
+}
+
+} // namespace ndn