Method OnDropdownSelect

src/station_gui.cpp:672–722

	}

	void OnDropdownSelect(WidgetID widget, int index, int) override
	{
		if (widget == WID_STL_SORTDROPBTN) {
			if (this->stations.SortType() != index) {
				this->stations.SetSortType(index);

				/* Display the current sort variant */
				this->GetWidget<NWidgetCore>(WID_STL_SORTDROPBTN)->SetString(CompanyStationsWindow::sorter_names[this->stations.SortType()]);

				this->SetDirty();
			}
		}

		if (widget == WID_STL_CARGODROPDOWN) {
			FilterState oldstate = this->filter;

			if (index >= 0 && index < NUM_CARGO) {
				if (_ctrl_pressed) {
					ToggleBit(this->filter.cargoes, index);
				} else {
					this->filter.cargoes = 1ULL << index;
					this->filter.include_no_rating = false;
				}
			} else if (index == CargoFilterCriteria::CF_NO_RATING) {
				if (_ctrl_pressed) {
					this->filter.include_no_rating = !this->filter.include_no_rating;
				} else {
					this->filter.include_no_rating = true;
					this->filter.cargoes = 0;
				}
			} else if (index == CargoFilterCriteria::CF_SELECT_ALL) {
				this->filter.cargoes = _cargo_mask;
				this->filter.include_no_rating = true;
			} else if (index == CargoFilterCriteria::CF_EXPAND_LIST) {
				this->filter_expanded = true;
				ReplaceDropDownList(this, this->BuildCargoDropDownList(this->filter_expanded));
				return;
			}

			if (oldstate.cargoes != this->filter.cargoes || oldstate.include_no_rating != this->filter.include_no_rating) {
				this->stations.ForceRebuild();
				this->SetDirty();

				/* Only refresh the list if it's changed. */
				if (_ctrl_pressed) ReplaceDropDownList(this, this->BuildCargoDropDownList(this->filter_expanded));
			}

			/* Always close the list if ctrl is not pressed. */
			if (!_ctrl_pressed) this->CloseChildWindows(WC_DROPDOWN_MENU);
		}
	}

	void OnGameTick() override
	{