A stacked widget is a container widget that stacks its child widgets on
top of each other and displays a single child at any time.
The WStackedWidget accomplishes this using
setHidden(bool) on the children. Using currentIndex()
and setCurrentIndex(int index) you can retrieve or set the
Like its parent WContainerWidget, WStackedWidget is
by default not inline. The widget is rendered using an HTML
<div> tag and does not provide styling. It can be styled
using inline or external CSS as appropriate.