Function ShowBuildRoadToolbar

src/road_gui.cpp:1006–1015

* Open the build road toolbar window * * If the terraform toolbar is linked to the toolbar, that window is also opened. * * @return newly opened road toolbar, or nullptr if the toolbar could not be opened. */

 * @return newly opened road toolbar, or nullptr if the toolbar could not be opened.
 */
Window *ShowBuildRoadToolbar(RoadType roadtype)
{
	if (!Company::IsValidID(_local_company)) return nullptr;
	if (!ValParamRoadType(roadtype)) return nullptr;

	CloseWindowByClass(WC_BUILD_TOOLBAR);
	_cur_roadtype = roadtype;

	return AllocateWindowDescFront<BuildRoadToolbarWindow>(RoadTypeIsRoad(_cur_roadtype) ? _build_road_desc : _build_tramway_desc, TRANSPORT_ROAD);
}

static constexpr std::initializer_list<NWidgetPart> _nested_build_road_scen_widgets = {
	NWidget(NWID_HORIZONTAL),