Method OnInvalidateData

src/company_gui.cpp:1021–1060

* Some data on this window has become invalid. * @param data Information about the changed data. * @param gui_scope Whether the call is done from GUI scope. You may not do everything when not in GUI scope. See #InvalidateWindowData() for details. */

	 * @param gui_scope Whether the call is done from GUI scope. You may not do everything when not in GUI scope. See #InvalidateWindowData() for details.
	 */
	void OnInvalidateData([[maybe_unused]] int data = 0, [[maybe_unused]] bool gui_scope = true) override
	{
		if (!gui_scope) return;

		if (data != -1) {
			/* data contains a VehicleType, rebuild list if it displayed */
			if (this->livery_class == data + LC_GROUP_RAIL) {
				this->groups.ForceRebuild();
				this->BuildGroupList(this->window_number);
				this->SetRows();

				if (!Group::IsValidID(this->sel)) {
					this->sel = GroupID::Invalid().base();
					if (!this->groups.empty()) this->sel = this->groups[0].group->index.base();
				}

				this->SetDirty();
			}
			return;
		}

		this->SetWidgetsDisabledState(true, WID_SCL_CLASS_RAIL, WID_SCL_CLASS_ROAD, WID_SCL_CLASS_SHIP, WID_SCL_CLASS_AIRCRAFT);

		bool current_class_valid = this->livery_class == LC_OTHER || this->livery_class >= LC_GROUP_RAIL;
		if (_settings_client.gui.liveries == LIT_ALL || (_settings_client.gui.liveries == LIT_COMPANY && this->window_number == _local_company)) {
			for (LiveryScheme scheme = LS_DEFAULT; scheme < LS_END; scheme++) {
				if (HasBit(_loaded_newgrf_features.used_liveries, scheme)) {
					if (_livery_class[scheme] == this->livery_class) current_class_valid = true;
					this->EnableWidget(WID_SCL_CLASS_GENERAL + _livery_class[scheme]);
				} else if (this->livery_class < LC_GROUP_RAIL) {
					ClrBit(this->sel, scheme);
				}
			}
		}

		if (!current_class_valid) {
			Point pt = {0, 0};
			this->OnClick(pt, WID_SCL_CLASS_GENERAL, 1);
		}
	}
};

static constexpr std::initializer_list<NWidgetPart> _nested_select_company_livery_widgets = {