Function IsContainerWidgetType

src/widget.cpp:3353–3357

* Test if WidgetType is a container widget. * @param tp WidgetType to test. * @return True iff WidgetType is a container widget. */

 * @return True iff WidgetType is a container widget.
 */
bool IsContainerWidgetType(WidgetType tp)
{
	return tp == NWID_HORIZONTAL || tp == NWID_HORIZONTAL_LTR || tp == NWID_VERTICAL || tp == NWID_MATRIX
		|| tp == WWT_PANEL || tp == WWT_FRAME || tp == WWT_INSET || tp == NWID_SELECTION || tp == NWID_LAYER;
}

/**
 * Build a nested widget tree by recursively filling containers with nested widgets read from their parts.