Improve satellite view and fused location telemetry

src/LocationParser.cpp

@@ -103,6 +103,26 @@ std::optional<ParsedTelemetry> LocationParser::parseLine(const QString &line)
             telemetry.source = LocationSource::Gps;
         }
     }
+    static const QRegularExpression fusionModeRegex(
+        QStringLiteral(R"((?:^|\s)mode\s*=\s*(?<mode>gps[_-]?aided|dead[_-]?reckoning)(?=$|\s))"),
+        QRegularExpression::CaseInsensitiveOption);
+    const QRegularExpressionMatch fusionModeMatch = fusionModeRegex.match(trimmed);
+    if (fusionModeMatch.hasMatch()) {
+        telemetry.fusionMode = fusionModeMatch.captured(QStringLiteral("mode")).startsWith(
+                                   QStringLiteral("dead"), Qt::CaseInsensitive)
+            ? FusionMode::DeadReckoning : FusionMode::GpsAided;
+    }
+    static const QRegularExpression gpsAgeRegex(
+        QStringLiteral(R"((?:^|\s)gps[_-]?age[_-]?ms\s*=\s*(?<age>\d+)(?=$|\s))"),
+        QRegularExpression::CaseInsensitiveOption);
+    const QRegularExpressionMatch gpsAgeMatch = gpsAgeRegex.match(trimmed);
+    if (gpsAgeMatch.hasMatch()) {
+        bool ok = false;
+        const qint64 ageMs = gpsAgeMatch.captured(QStringLiteral("age")).toLongLong(&ok);
+        if (ok) {
+            telemetry.gpsAgeMs = ageMs;
+        }
+    }
     bool hadCoordinateField = false;
     bool hadLatitudeField = false;
     bool hadLongitudeField = false;