Check device serial when loading calibration

Software/PC_Application/LibreVNA-GUI/Calibration/calibration.cpp

@@ -1248,6 +1248,24 @@ QString Calibration::descriptiveCalName()
     return tmp;
 }
 
+QString Calibration::getValidDevice() const
+{
+    return validDevice;
+}
+
+bool Calibration::validForDevice(QString serial) const
+{
+    if(validDevice.isEmpty()) {
+        // no device indicated, always assume that the calibration is valid
+        return true;
+    }
+    if(validDevice == serial) {
+        return true;
+    } else {
+        return false;
+    }
+}
+
 bool Calibration::hasUnsavedChanges() const
 {
     return unsavedChanges;
@@ -1279,9 +1297,7 @@ nlohmann::json Calibration::toJSON()
     }
     j["ports"] = jports;
     j["version"] = qlibrevnaApp->applicationVersion().toStdString();
-    if(VirtualDevice::getConnected()) {
-        j["device"] = VirtualDevice::getConnected()->serial().toStdString();
-    }
+    j["device"] = validDevice.toStdString();
     return j;
 }
 
@@ -1326,6 +1342,7 @@ void Calibration::fromJSON(nlohmann::json j)
         if(ct.type != Type::None) {
             compute(ct);
         }
+        validDevice = QString::fromStdString(j.value("device", ""));
     }
         break;
     case 2: {
@@ -1716,6 +1733,9 @@ void Calibration::addMeasurements(std::set<CalibrationMeasurement::Base *> m, co
         meas->addPoint(data);
     }
     unsavedChanges = true;
+    if(VirtualDevice::getConnected()) {
+        validDevice = VirtualDevice::getConnected()->serial();
+    }
 }
 
 void Calibration::clearMeasurements(std::set<CalibrationMeasurement::Base *> m)

Software/PC_Application/LibreVNA-GUI/Calibration/calibration.h

@@ -93,6 +93,9 @@ public:
     int getNumPoints();
     bool hasUnsavedChanges() const;
 
+    QString getValidDevice() const;
+    bool validForDevice(QString serial) const;
+
 public slots:
     // Call once all datapoints of the current span have been added
     void measurementsComplete();
@@ -154,6 +157,8 @@ private:
     QString descriptiveCalName();
     QString currentCalFile;
 
+    QString validDevice;
+
     bool unsavedChanges;
 
     std::recursive_mutex access;

Software/PC_Application/LibreVNA-GUI/VNA/vna.cpp

@@ -97,6 +97,10 @@ VNA::VNA(AppWindow *window, QString name)
 
     connect(calLoad, &QAction::triggered, [=](){
         LoadCalibration();
+        if(window->getDevice() && !cal.validForDevice(window->getDevice()->serial())) {
+            InformationBox::ShowMessage("Invalid calibration", "The selected calibration was created for a different device. You can still load it but the resulting "
+                                        "data likely isn't useful.");
+        }
     });
 
     connect(saveCal, &QAction::triggered, [=](){
@@ -215,6 +219,7 @@ VNA::VNA(AppWindow *window, QString name)
            if(!filename.isEmpty()) {
                settings.setValue(key, filename);
                removeDefaultCal->setEnabled(true);
+               LoadCalibration(filename);
            }
        }
     });
@@ -697,6 +702,10 @@ void VNA::initializeDevice()
     // Configure initial state of device
     SettingsChanged();
     emit deviceInitialized();
+    if(window->getDevice() && !cal.validForDevice(window->getDevice()->serial())) {
+        InformationBox::ShowMessage("Invalid calibration", "The current calibration was created for a different device. You can still use it but the resulting "
+                                    "data likely isn't useful.");
+    }
 }
 
 void VNA::deviceDisconnected()

Software/PC_Application/LibreVNA-GUI/calculatedTRL.calkit

@@ -1,34 +0,0 @@
-{
-    "Description": "TRL test calibration kit",
-    "Manufacturer": "Hugen",
-    "Serialnumber": "-",
-    "standards": [
-        {
-            "params": {
-                "id": 5166523964218309461,
-                "isShort": true,
-                "name": "TRL"
-            },
-            "type": "Reflect"
-        },
-        {
-            "params": {
-                "Z0": 50.0,
-                "delay": 0.0,
-                "id": 4725361202400330854,
-                "loss": 0.0,
-                "name": "TRL"
-            },
-            "type": "Through"
-        },
-        {
-            "params": {
-                "delay": 1e-09,
-                "id": 10060287735088848795,
-                "name": "TRL"
-            },
-            "type": "Line"
-        }
-    ],
-    "version": "1.4.0-b20e5598b"
-}

Software/PC_Application/LibreVNA-GUI/measuredTRLcal.calkit

@@ -1,34 +0,0 @@
-{
-    "Description": "TRL test calibration kit",
-    "Manufacturer": "Hugen",
-    "Serialnumber": "-",
-    "standards": [
-        {
-            "params": {
-                "id": 5166523964218309461,
-                "isShort": true,
-                "name": "TRL"
-            },
-            "type": "Reflect"
-        },
-        {
-            "params": {
-                "Z0": 50.0,
-                "delay": 0.0,
-                "id": 4725361202400330854,
-                "loss": 0.0,
-                "name": "TRL"
-            },
-            "type": "Through"
-        },
-        {
-            "params": {
-                "delay": 1e-09,
-                "id": 10060287735088848795,
-                "name": "TRL"
-            },
-            "type": "Line"
-        }
-    ],
-    "version": "1.4.0-b20e5598b"
-}