FT8 demod: implemented DXCC country decoding. Fixes f4exb#2008

plugins/channelrx/demodft8/ft8demodfilterproxy.cpp

@@ -57,6 +57,13 @@ void FT8DemodFilterProxy::setFilterLoc(const QString& locString)
     invalidateFilter();
 }
 
+void FT8DemodFilterProxy::setFilterCountry(const QString& countryString)
+{
+    m_filterActive = FILTER_COUNTRY;
+    m_country = countryString;
+    invalidateFilter();
+}
+
 void FT8DemodFilterProxy::setFilterInfo(const QString& infoString)
 {
     m_filterActive = FILTER_INFO;
@@ -97,6 +104,12 @@ bool FT8DemodFilterProxy::filterAcceptsRow(int sourceRow, const QModelIndex &sou
         return sourceModel()->data(index).toString() == m_loc;
     }
 
+    if (m_filterActive == FILTER_COUNTRY)
+    {
+        QModelIndex index = sourceModel()->index(sourceRow, FT8DemodSettings::MESSAGE_COL_COUNTRY, sourceParent);
+        return sourceModel()->data(index).toString() == m_country;
+    }
+
     if (m_filterActive == FILTER_INFO)
     {
         QModelIndex index = sourceModel()->index(sourceRow, FT8DemodSettings::MESSAGE_COL_INFO, sourceParent);

plugins/channelrx/demodft8/ft8demodfilterproxy.h

@@ -32,6 +32,7 @@ class FT8DemodFilterProxy : public QSortFilterProxyModel
     void setFilterDf(int df);
     void setFilterCall(const QString& utcString);
     void setFilterLoc(const QString& utcString);
+    void setFilterCountry(const QString& countryString);
     void setFilterInfo(const QString& infoString);
 
 protected:
@@ -45,6 +46,7 @@ class FT8DemodFilterProxy : public QSortFilterProxyModel
         FILTER_DF,
         FILTER_CALL,
         FILTER_LOC,
+        FILTER_COUNTRY,
         FILTER_INFO
     };
 
@@ -54,6 +56,7 @@ class FT8DemodFilterProxy : public QSortFilterProxyModel
     int m_df;
     QString m_call;
     QString m_loc;
+    QString m_country;
     QString m_info;
 };
 

plugins/channelrx/demodft8/ft8demodgui.cpp

@@ -33,6 +33,7 @@
 #include "gui/dialpopup.h"
 #include "gui/dialogpositioner.h"
 #include "util/db.h"
+#include "util/callsign.h"
 #include "maincore.h"
 
 #include "ui_ft8demodgui.h"
@@ -89,6 +90,8 @@ QVariant FT8MessagesTableModel::data(const QModelIndex &index, int role) const
                 return ft8Message.m_call2;
             case FT8DemodSettings::MESSAGE_COL_LOC:
                 return ft8Message.m_loc;
+            case FT8DemodSettings::MESSAGE_COL_COUNTRY:
+                return ft8Message.m_country;
             case FT8DemodSettings::MESSAGE_COL_INFO:
                 return ft8Message.m_info;
             default:
@@ -137,6 +140,8 @@ QVariant FT8MessagesTableModel::headerData(int section, Qt::Orientation orientat
                 return tr("Call2");
             case FT8DemodSettings::MESSAGE_COL_LOC:
                 return tr("Loc");
+            case FT8DemodSettings::MESSAGE_COL_COUNTRY:
+                return tr("Country");
             case FT8DemodSettings::MESSAGE_COL_INFO:
                 return tr("Info");
             default:
@@ -167,6 +172,8 @@ QVariant FT8MessagesTableModel::headerData(int section, Qt::Orientation orientat
                 return tr("Second call area");
             case FT8DemodSettings::MESSAGE_COL_LOC:
                 return tr("Locator area");
+            case FT8DemodSettings::MESSAGE_COL_COUNTRY:
+                return tr("DXCC country name");
             case FT8DemodSettings::MESSAGE_COL_INFO:
                 return tr("Decoder information");
             default:
@@ -190,6 +197,7 @@ void FT8MessagesTableModel::messagesReceived(const QList<FT8Message>& messages)
 
     for (const auto& message : messages)
     {
+        CountryDat::CountryInfo countryInfo = Callsign::instance()->getCountryInfo(getCaller(message.call1, message.call2));
         m_ft8Messages.push_back(FT8MesssageData{
             message.ts.toString("HHmmss"),
             message.type,
@@ -201,13 +209,25 @@ void FT8MessagesTableModel::messagesReceived(const QList<FT8Message>& messages)
             message.call1,
             message.call2,
             message.loc,
+            countryInfo.country,
             message.decoderInfo
         });
     }
 
     endInsertRows();
 }
 
+QString FT8MessagesTableModel::getCaller(const QString& call1, const QString& call2)
+{
+    if (!call2.isEmpty()) {
+        return call2;
+    }
+    if (call1.startsWith("CQ ")) {
+        return call1.mid(3);
+    }
+    return "";
+}
+
 void FT8MessagesTableModel::setDefaultMessage()
 {
     if (m_ft8Messages.size() != 0) {
@@ -226,6 +246,7 @@ void FT8MessagesTableModel::setDefaultMessage()
         "CQ PA900RAALTE",
         "PA900RAALTE",
         "JN000",
+        "Bosnia-Herzegovina",
         "OSD-0-73"
     });
     endInsertRows();
@@ -950,6 +971,8 @@ void FT8DemodGUI::filterMessages()
         m_messagesFilterProxy.setFilterUTC(m_selectedData.toString());
     } else if (m_selectedColumn == FT8DemodSettings::MESSAGE_COL_DF) {
         m_messagesFilterProxy.setFilterDf(m_selectedData.toInt());
+    } else if (m_selectedColumn == FT8DemodSettings::MESSAGE_COL_COUNTRY) {
+        m_messagesFilterProxy.setFilterCountry(m_selectedData.toString());
     } else if (m_selectedColumn == FT8DemodSettings::MESSAGE_COL_INFO) {
         m_messagesFilterProxy.setFilterInfo(m_selectedData.toString());
     }

plugins/channelrx/demodft8/ft8demodgui.h

@@ -56,6 +56,7 @@ struct FT8MesssageData
     QString m_call1;
     QString m_call2;
     QString m_loc;
+    QString m_country;
     QString m_info;
 };
 
@@ -77,7 +78,8 @@ class FT8MessagesTableModel : public QAbstractTableModel
 
 private:
     QVector<FT8MesssageData> m_ft8Messages;
-    static const int m_columnCount = 11;
+    static const int m_columnCount = 12;
+    static QString getCaller(const QString& call1, const QString& call2);
 };
 
 class FT8DemodGUI : public ChannelGUI {

plugins/channelrx/demodft8/ft8demodsettings.h

@@ -64,6 +64,7 @@ struct FT8DemodSettings
         MESSAGE_COL_CALL1,
         MESSAGE_COL_CALL2,
         MESSAGE_COL_LOC,
+        MESSAGE_COL_COUNTRY,
         MESSAGE_COL_INFO,
     };
 

plugins/channelrx/demodft8/readme.md

@@ -124,6 +124,7 @@ Toggles the filtering of messages. Messages are filtered based on the selected c
   - **Call1**: will filter messages matching the call1 area value either in the call1 or call2 areas
   - **Call2**: same as above but taking the call2 value
   - **Loc**: will filter messages matching the value in the locator (loc) area
+  - **Country**: will filter messages matching the value in the country area
   - **Info**: will filter values starting with "OSD" or not starting with "OSD" thus filter messages decoded via OSD or not
 
 <h3>C.5: Band preset selection</h3>
@@ -201,6 +202,7 @@ Displays the received messages in a table which columns are the following:
   - **Call1**: This is the first call area and may contain the caller callsign, a CQ or a custom 13 character message in which case the second call and locator areas are empty. It may be slightly different from the standard for message type 5 (see above).
   - **Call2**: This is the second call area and will contain the callsign of the responding station. This is always a callsign and this may differ slightly from the standard for messages type 5 (see above).
   - **Loc**: Locator area which contains the 4 character Maidenhead locator, a report, an acknowledgement (RRR) or a greetings (73 or RR73)
+  - **Country**: DXCC country name derived from the caller callsign
   - **Info**: FT8 decoder information if any. If OSD is active (see C.1.3) and OSD was activated it reports the OSD decoder status as `OSD-N-MM` where N is the OSD depth reached and MM is the number of correct LDPC bits.
 
 <h3>C.1: More FT8 decoder settings</h2>