Adding custom complex mission items

[AkkermanFunc]

Feature Description

I am creating QGC custom build, and have to create new pattern in flight plan. Similar to survey but a bit different logic.
In QGCCorePlugin.h is method called complexMissionItemNames() which we can override to add new pattern name.
/// Returns the complex mission items to display in the Plan UI /// @param complexMissionItemNames Default set of complex items /// @return Complex items to be made available to user virtual QStringList complexMissionItemNames(Vehicle *vehicle, const QStringList &complexMissionItemNames) { Q_UNUSED(vehicle); return complexMissionItemNames; }
But logic of adding new patterns is hard-coded in MissionController.cc
`VisualMissionItem* MissionController::insertComplexMissionItem(QString itemName, QGeoCoordinate mapCenterCoordinate, int visualItemIndex, bool makeCurrentItem)
{
ComplexMissionItem* newItem = nullptr;

if (itemName == SurveyComplexItem::name) {
    newItem = new SurveyComplexItem(_masterController, _flyView, QString() /* kmlOrShpFile */);
    newItem->setCoordinate(mapCenterCoordinate);

    double                              prevAltitude;
    QGroundControlQmlGlobal::AltMode    prevAltMode;
    if (globalAltitudeMode() == QGroundControlQmlGlobal::AltitudeModeMixed) {
        // We are in mixed altitude modes, so copy from previous. Otherwise alt mode will be set from global setting in constructor.
        if (_findPreviousAltitude(visualItemIndex, &prevAltitude, &prevAltMode)) {
            qobject_cast<SurveyComplexItem*>(newItem)->cameraCalc()->setDistanceMode(prevAltMode);
        }
    }
} else if (itemName == FixedWingLandingComplexItem::name) {
    newItem = new FixedWingLandingComplexItem(_masterController, _flyView);
} else if (itemName == VTOLLandingComplexItem::name) {
    newItem = new VTOLLandingComplexItem(_masterController, _flyView);
} else if (itemName == StructureScanComplexItem::name) {
    newItem = new StructureScanComplexItem(_masterController, _flyView, QString() /* kmlOrShpFile */);
} else if (itemName == CorridorScanComplexItem::name) {
    newItem = new CorridorScanComplexItem(_masterController, _flyView, QString() /* kmlOrShpFile */);
} else {
    qWarning() << "Internal error: Unknown complex item:" << itemName;
    return nullptr;
}

_insertComplexMissionItemWorker(mapCenterCoordinate, newItem, visualItemIndex, makeCurrentItem);

return newItem;

}`
So can I make new pattern and not modify MainLine source code?

Flight Stacks

No response

Vehicle Types

No response

[DonLakeFlyer]

Yeah, this was only half implemented. Not sure even if the UI side which should expose the complex items works either. All seems half-assed. I'll see if I can find a way to make this work end to end.