Function ChangeVehicleWindow

src/vehicle_gui.cpp:1566–1582

* Assign a vehicle window a new vehicle * @param window_class WindowClass to search for * @param from_index the old vehicle ID * @param to_index the new vehicle ID */

 * @param to_index the new vehicle ID
 */
static inline void ChangeVehicleWindow(WindowClass window_class, VehicleID from_index, VehicleID to_index)
{
	Window *w = FindWindowById(window_class, from_index);
	if (w != nullptr) {
		/* Update window_number */
		w->window_number = to_index;
		if (w->viewport != nullptr) w->viewport->follow_vehicle = to_index;

		/* Update vehicle drag data */
		if (_thd.window_class == window_class && _thd.window_number == from_index) {
			_thd.window_number = to_index;
		}

		/* Notify the window. */
		w->InvalidateData(VIWD_AUTOREPLACE, false);
	}
}

/**
 * Report a change in vehicle IDs (due to autoreplace) to affected vehicle windows.