Method BuildSortSignList

src/signs_gui.cpp:281–289

	}

	void BuildSortSignList()
	{
		if (this->signs.NeedRebuild()) {
			this->BuildSignsList();
			this->vscroll->SetCount(this->signs.size());
			this->SetWidgetDirty(WID_SIL_CAPTION);
		}
		this->SortSignsList();
	}

	/** Resort the sign listing on a regular interval. */
	const IntervalTimer<TimerWindow> rebuild_interval = {std::chrono::seconds(3), [this](auto) {