Method UpdateDocksDirection

src/dock_gui.cpp:519–526

struct BuildDocksDepotWindow : public PickerWindowBase {
private:
	static void UpdateDocksDirection()
	{
		if (_ship_depot_direction != AXIS_X) {
			SetTileSelectSize(1, 2);
		} else {
			SetTileSelectSize(2, 1);
		}
	}

public:
	BuildDocksDepotWindow(WindowDesc &desc, Window *parent) : PickerWindowBase(desc, parent)