Method BuildAirportWindow

src/airport_gui.cpp:259–294

public:
	BuildAirportWindow(WindowDesc &desc, Window *parent) : PickerWindowBase(desc, parent)
	{
		this->CreateNestedTree();

		this->vscroll = this->GetScrollbar(WID_AP_SCROLLBAR);
		this->vscroll->SetCapacity(5);
		this->vscroll->SetPosition(0);

		this->FinishInitNested(TRANSPORT_AIR);

		this->SetWidgetLoweredState(WID_AP_BTN_DONTHILIGHT, !_settings_client.gui.station_show_coverage);
		this->SetWidgetLoweredState(WID_AP_BTN_DOHILIGHT, _settings_client.gui.station_show_coverage);
		this->OnInvalidateData();

		/* Ensure airport class is valid (changing NewGRFs). */
		_selected_airport_class = Clamp(_selected_airport_class, APC_BEGIN, (AirportClassID)(AirportClass::GetClassCount() - 1));
		const AirportClass *ac = AirportClass::Get(_selected_airport_class);
		this->vscroll->SetCount(ac->GetSpecCount());

		/* Ensure the airport index is valid for this class (changing NewGRFs). */
		_selected_airport_index = Clamp(_selected_airport_index, -1, ac->GetSpecCount() - 1);

		/* Only when no valid airport was selected, we want to select the first airport. */
		bool select_first_airport = true;
		if (_selected_airport_index != -1) {
			const AirportSpec *as = ac->GetSpec(_selected_airport_index);
			if (as->IsAvailable()) {
				/* Ensure the airport layout is valid. */
				_selected_airport_layout = Clamp(_selected_airport_layout, 0, static_cast<uint8_t>(as->layouts.size() - 1));
				select_first_airport = false;
				this->UpdateSelectSize();
			}
		}

		if (select_first_airport) this->SelectFirstAvailableAirport(true);
	}

	void Close([[maybe_unused]] int data = 0) override
	{