Add a read-only TX antenna menu entry showing the active one, closing #559

src/AppFrame.cpp

@@ -811,8 +811,18 @@ void AppFrame::updateDeviceParams() {
         }
     }
 
-    //Runtime settings part
+    //Add an informative, read-only menu entry to display the current TX selected antenna, if any.
+    if (devInfo->getAntennaNames(SOAPY_SDR_TX, 0).size() > 1) {
 
+        currentTXantennaName = devInfo->getAntennaName(SOAPY_SDR_TX, 0);
+        
+        newSettingsMenu->AppendSeparator();
+        
+        antennaMenuItems[wxID_ANTENNA_CURRENT_TX] = newSettingsMenu->Append(wxID_ANTENNA_CURRENT_TX, getSettingsLabel("TX Antenna", currentTXantennaName));
+        antennaMenuItems[wxID_ANTENNA_CURRENT_TX]->Enable(false);
+    }
+
+    //Runtime settings part
     SoapySDR::ArgInfoList::const_iterator args_i;
     settingArgs = soapyDev->getSettingInfo();
 
@@ -1689,6 +1699,16 @@ void AppFrame::OnIdle(wxIdleEvent& event) {
         updateDeviceParams();
     }
 
+    //Refresh the current TX antenna on, if any:
+    if (devInfo) {
+        std::string actualTxAntenna = devInfo->getAntennaName(SOAPY_SDR_TX, 0);
+        
+        if (currentTXantennaName != actualTxAntenna) {
+            currentTXantennaName = actualTxAntenna;
+            antennaMenuItems[wxID_ANTENNA_CURRENT_TX]->SetItemLabel(getSettingsLabel("TX Antenna", currentTXantennaName));
+        }
+    }
+    
     //try to garbage collect the retired demodulators.
     wxGetApp().getDemodMgr().garbageCollect();
 

src/AppFrame.h

@@ -65,7 +65,8 @@
 #define wxID_SETTINGS_BASE 2300
 
 #define wxID_ANTENNA_CURRENT 2500
-#define wxID_ANTENNAS_BASE 2501
+#define wxID_ANTENNA_CURRENT_TX 2501
+#define wxID_ANTENNAS_BASE 2502
 
 #define wxID_DEVICE_ID 3500
 
@@ -223,6 +224,8 @@ private:
 
     std::vector<std::string> antennaNames;
 
+   std::string currentTXantennaName;
+    
     std::string currentSessionFile;
     
     FFTVisualDataThread *waterfallDataThread;

src/sdr/SDRDeviceInfo.cpp

@@ -191,9 +191,25 @@ std::vector<long> SDRDeviceInfo::getSampleRates(int direction, size_t channel) {
 }
 
 std::vector<std::string> SDRDeviceInfo::getAntennaNames(int direction, size_t channel) {
+
     SoapySDR::Device *dev = getSoapyDevice();
 
-    return  dev->listAntennas(direction, channel);
+    if (dev) {
+
+        return  dev->listAntennas(direction, channel);
+    }
+
+    return std::vector<std::string>(); 
+}
+
+std::string SDRDeviceInfo::getAntennaName(int direction, size_t channel) {
+    SoapySDR::Device *dev = getSoapyDevice();
+    
+    if (dev) {
+        return  dev->getAntenna(direction, channel);
+    }
+
+    return std::string("");
 
 }
 

src/sdr/SDRDeviceInfo.h

@@ -86,6 +86,8 @@ public:
 
     std::vector<std::string> getAntennaNames(int direction, size_t channel);
 
+    std::string getAntennaName(int direction, size_t channel);
+    
     long getSampleRateNear(int direction, size_t channel, long sampleRate_in);
 
     SDRRangeMap getGains(int direction, size_t channel);