add info about conversions to UI, tweak layout

lib/converterlist/ConverterList.h

@@ -13,7 +13,8 @@ public:
     typedef void (*LConverter)(const Msg &msg, T *);
 
 private:
-    double dummy;
+    String keyList;
+    bool keyListFilled=false;
     class ConverterEntry
     {
     public:
@@ -44,7 +45,7 @@ private:
     typedef std::map<String, ConverterEntry> ConverterMap;
     ConverterMap converters;
 
-public:
+    public:
     /**
         *  register a converter
         *  each of the converter functions must be registered in the constructor 
@@ -54,70 +55,82 @@ public:
         unsigned long *lpgn=new unsigned long[1]{pgn};
         ConverterEntry e(1,lpgn, converter);
         converters[String(pgn)] = e;
+        keyListFilled=false;
     }
     void registerConverter(unsigned long pgn, LConverter converter)
     {
         unsigned long *lpgn=new unsigned long[1]{pgn};
         ConverterEntry e(1,lpgn, converter);
         converters[String(pgn)] = e;
+        keyListFilled=false;
     }
     void registerConverter(unsigned long pgn, String sentence, Converter converter)
     {
         unsigned long *lpgn=new unsigned long[1]{pgn};
         ConverterEntry e(1,lpgn, converter);
         converters[sentence] = e;
+        keyListFilled=false;
     }
     void registerConverter(unsigned long pgn, String sentence, LConverter converter)
     {
         unsigned long *lpgn=new unsigned long[1]{pgn};
         ConverterEntry e(1,lpgn, converter);
         converters[sentence] = e;
+        keyListFilled=false;
     }
     void registerConverter(int num,unsigned long *lpgn, String sentence, Converter converter)
     {
         ConverterEntry e(num,lpgn, converter);
         converters[sentence] = e;
+        keyListFilled=false;
     }
     void registerConverter(int num,unsigned long *lpgn, String sentence, LConverter converter)
     {
         ConverterEntry e(num,lpgn, converter);
         converters[sentence] = e;
+        keyListFilled=false;
     }
     void registerConverter(unsigned long pgn, unsigned long pgn2, String sentence, Converter converter)
     {
         unsigned long *lpgn=new unsigned long[2]{pgn,pgn2};
         ConverterEntry e(2, lpgn, converter);
         converters[sentence] = e;
+        keyListFilled=false;
     }
     void registerConverter(unsigned long pgn, unsigned long pgn2, String sentence, LConverter converter)
     {
         unsigned long *lpgn=new unsigned long[2]{pgn,pgn2};
         ConverterEntry e(2, lpgn, converter);
         converters[sentence] = e;
+        keyListFilled=false;
     }
     void registerConverter(unsigned long pgn, unsigned long pgn2, unsigned long pgn3,String sentence, Converter converter)
     {
         unsigned long *lpgn=new unsigned long[3]{pgn,pgn2,pgn3};
         ConverterEntry e(3, lpgn,converter);
         converters[sentence] = e;
+        keyListFilled=false;
     }
     void registerConverter(unsigned long pgn, unsigned long pgn2, unsigned long pgn3,String sentence, LConverter converter)
     {
         unsigned long *lpgn=new unsigned long[3]{pgn,pgn2,pgn3};
         ConverterEntry e(3, lpgn,converter);
         converters[sentence] = e;
+        keyListFilled=false;
     }
     void registerConverter(unsigned long pgn, unsigned long pgn2, unsigned long pgn3,unsigned long pgn4,String sentence, Converter converter)
     {
         unsigned long *lpgn=new unsigned long[4]{pgn,pgn2,pgn3,pgn4};
         ConverterEntry e(4, lpgn,converter);
         converters[sentence] = e;
+        keyListFilled=false;
     }
     void registerConverter(unsigned long pgn, unsigned long pgn2, unsigned long pgn3,unsigned long pgn4,String sentence, LConverter converter)
     {
         unsigned long *lpgn=new unsigned long[4]{pgn,pgn2,pgn3,pgn4};
         ConverterEntry e(4, lpgn,converter);
         converters[sentence] = e;
+        keyListFilled=false;
     }
 
     bool handleMessage(String code, const Msg &msg, T *base)
@@ -182,5 +195,18 @@ public:
             json[prefix][String(it->first)] = it->second.count;
         }
     }
+    String handledKeys(){
+        if (! keyListFilled){
+            keyList=String();
+            bool first=true;
+            for (auto it=converters.begin();it != converters.end();it++){
+                if (! first) keyList.concat(',');
+                first=false;
+                keyList.concat(it->first);
+            }
+            keyListFilled=true;
+        }
+        return keyList;
+    }
 };
 #endif

lib/nmea0183ton2k/NMEA0183DataToN2K.cpp

@@ -402,6 +402,9 @@ public:
     virtual int numConverters(){
         return converters.numConverters();
     }
+    virtual String handledKeys(){
+        return converters.handledKeys();
+    }
 
     NMEA0183DataToN2KFunctions(GwLog *logger, GwBoatData *boatData, N2kSender callback)
         : NMEA0183DataToN2K(logger, boatData, callback)

lib/nmea0183ton2k/NMEA0183DataToN2K.h

@@ -16,6 +16,7 @@ class NMEA0183DataToN2K{
         virtual bool parseAndSend(const char *buffer, int sourceId);
         virtual unsigned long *handledPgns()=0;
         virtual int numConverters()=0;
+        virtual String handledKeys()=0;
         static NMEA0183DataToN2K* create(GwLog *logger,GwBoatData *boatData,N2kSender callback);
 };
 #endif

lib/nmea2kto0183/N2kDataToNMEA0183.cpp

@@ -92,6 +92,9 @@ private:
         logger->logString("CONV: # %d handled PGNS", converters.numConverters());
         return converters.handledPgns();
     }
+    virtual String handledKeys(){
+        return converters.handledKeys();
+    }
     virtual void HandleMsg(const tN2kMsg &N2kMsg)
     {
         String key=String(N2kMsg.PGN);

lib/nmea2kto0183/N2kDataToNMEA0183.h

@@ -51,5 +51,6 @@ public:
   virtual unsigned long* handledPgns()=0;
   virtual int numPgns()=0;
   virtual void toJson(JsonDocument &json)=0;
+  virtual String handledKeys()=0;
 };
 #endif