Test alt mode resets

src/MissionManager/TransectStyleComplexItem.cc

@@ -712,8 +712,8 @@ bool TransectStyleComplexItem::exitCoordinateHasRelativeAltitude(void) const
 
 void TransectStyleComplexItem::_followTerrainChanged(bool followTerrain)
 {
+    _cameraCalc.setDistanceToSurfaceRelative(!followTerrain);
     if (followTerrain) {
-        _cameraCalc.setDistanceToSurfaceRelative(false);
         _refly90DegreesFact.setRawValue(false);
         _hoverAndCaptureFact.setRawValue(false);
     }

src/MissionManager/TransectStyleComplexItemTest.cc

@@ -167,6 +167,30 @@ void TransectStyleComplexItemTest::_adjustSurveAreaPolygon(void)
     _transectStyleItem->surveyAreaPolygon()->adjustVertex(0, vertex);
 }
 
+void TransectStyleComplexItemTest::_testAltMode(void)
+{
+    // Default should be relative
+    QVERIFY(_transectStyleItem->cameraCalc()->distanceToSurfaceRelative());
+
+    // Manual camera allows non-relative altitudes, validate that changing back to known
+    // camera switches back to relative
+    _transectStyleItem->cameraCalc()->cameraName()->setRawValue(_transectStyleItem->cameraCalc()->manualCameraName());
+    _transectStyleItem->cameraCalc()->setDistanceToSurfaceRelative(false);
+    _transectStyleItem->cameraCalc()->cameraName()->setRawValue(_transectStyleItem->cameraCalc()->customCameraName());
+    QVERIFY(_transectStyleItem->cameraCalc()->distanceToSurfaceRelative());
+
+    // When you turn off terrain following mode make sure that the altitude mode changed back to relative altitudes
+    _transectStyleItem->cameraCalc()->setDistanceToSurfaceRelative(false);
+    _transectStyleItem->setFollowTerrain(true);
+
+    QVERIFY(!_transectStyleItem->cameraCalc()->distanceToSurfaceRelative());
+    QVERIFY(_transectStyleItem->followTerrain());
+
+    _transectStyleItem->setFollowTerrain(false);
+    QVERIFY(_transectStyleItem->cameraCalc()->distanceToSurfaceRelative());
+    QVERIFY(!_transectStyleItem->followTerrain());
+}
+
 TransectStyleItem::TransectStyleItem(Vehicle* vehicle, QObject* parent)
     : TransectStyleComplexItem  (vehicle, false /* flyView */, QStringLiteral("UnitTestTransect"), parent)
     , rebuildTransectsCalled    (false)

src/MissionManager/TransectStyleComplexItemTest.h

@@ -32,6 +32,7 @@ private slots:
     void _testDirty                     (void);
     void _testRebuildTransects          (void);
     void _testDistanceSignalling        (void);
+    void _testAltMode                   (void);
 
 private:
     void _setSurveyAreaPolygon  (void);