aquest valor vol dir que la mida original de l' estri està arranjada al mínim, és suficient i no cal expandir l' estri, però s' expandirà si cal. Aquest tipus de política es pot usar per a expandir a tota l' amplada o l' alçada, especialment si arrangeu un valor d' estirament més gran de 0.
this value means that the original size of the widget is set as minimal allowed, it is sufficient and there is no need for expanding the widget, but the widget will be expanded if needed. This type of policy can be used to force the widget to be expanded to the whole width or height, especially if you set a stretch value greater than 0.