}

	virtual void OnPaint()

	{

		if (this->generate_list) {

			/* Generate the vehicle list

			 * It's ok to use the wagon pointers for non-trains as they will be ignored */

			BuildDepotVehicleList(this->type, this->window_number, &this->vehicle_list, &this->wagon_list);

			this->generate_list = false;

			DepotSortList(&this->vehicle_list);

			uint new_unitnumber_digits = GetUnitNumberDigits(this->vehicle_list);

				this->unitnumber_digits = new_unitnumber_digits;

				this->ReInit();

			}

		}

		/* determine amount of items for scroller */

		if (this->type == VEH_TRAIN) {

			uint max_width = ScaleGUITrad(VEHICLEINFO_FULL_VEHICLE_WIDTH);

			for (uint num = 0; num < this->vehicle_list.Length(); num++) {

				uint width = 0;

				for (const Train *v = Train::From(this->vehicle_list[num]); v != NULL; v = v->Next()) {

					width += v->GetDisplayImageWidth();