Extend UDP status message - added Rx/Tx DF, call and grid information

Build now creates and installs a  UDP library that contains the server
side  of the  UDP messaging  facility.  This  library is  used by  the
udp_daemon and message_aggregator reference  examples. The new library
is  currently a  static archive  but  can also  be built  as a  shared
library.  The library  allows third  party Qt  applications to  easily
access UDP messages from WSJT-X.

Refactored  the  message_aggregator  reference example  to  split  out
classes into  separate translation  units. Added new  functionality to
exercise  the  new  UDP  status fields,  highlight  own  call,  CQ/QRZ
messages and decodes near Rx DF.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6691 ab8295b8-cf94-4d9e-aec4-7959e3be5d79

UDPExamples/MessageAggregatorMainWindow.hpp

@@ -0,0 +1,51 @@
+#ifndef WSJTX_MESSAGE_AGGREGATOR_MAIN_WINDOW_MODEL_HPP__
+#define WSJTX_MESSAGE_AGGREGATOR_MAIN_WINDOW_MODEL_HPP__
+
+#include <QMainWindow>
+#include <QHash>
+#include <QString>
+
+#include "MessageServer.hpp"
+
+class QDateTime;
+class QStandardItemModel;
+class QMenu;
+class DecodesModel;
+class BeaconsModel;
+class QLineEdit;
+class QTableView;
+class ClientWidget;
+
+using Frequency = MessageServer::Frequency;
+
+class MessageAggregatorMainWindow
+  : public QMainWindow
+{
+  Q_OBJECT;
+
+public:
+  MessageAggregatorMainWindow ();
+
+  Q_SLOT void log_qso (QString const& /*id*/, QDateTime time, QString const& dx_call, QString const& dx_grid
+                       , Frequency dial_frequency, QString const& mode, QString const& report_sent
+                       , QString const& report_received, QString const& tx_power, QString const& comments
+                       , QString const& name);
+
+private:
+  void add_client (QString const& id);
+  void remove_client (QString const& id);
+
+  QStandardItemModel * log_;
+  QMenu * view_menu_;
+  DecodesModel * decodes_model_;
+  BeaconsModel * beacons_model_;
+  MessageServer * server_;
+  QLineEdit * multicast_group_line_edit_;
+  QTableView * log_table_view_;
+
+  // maps client id to widgets
+  using ClientsDictionary = QHash<QString, ClientWidget *>;
+  ClientsDictionary dock_widgets_;
+};
+
+#endif