[Qt-interest] Does QMainWindow::setCentralWidget(QWidget *) destroy the old central widget?

[Matt Rogers]

On Friday 27 February 2009 13:01:38 Kermit Mei wrote:
> Matt Rogers wrote:
> > On Friday 27 February 2009 12:03:10 Kermit Mei wrote:
> >> Hello, I have more then three Widgets, and they monopolizes the whole
> >> MainWindow  separately during different duration.
> >> My idear is to use setCentralWidget() set them as central widget of the
> >> MainWindow when I need.
> >>
> >> The widgets are QWidget's sub-classes, and they are all controlled as
> >> pointer. When I set another widget as central widget of the mainwindow,
> >> I found that the old Central Widget will be destroyed automatically.
> >>
> >> Is there any better way to do it?
> >>
> >> Thanks.
> >
> > Use a widget stack, set it as the central widget and then use the widget
> > stack functionality to switch between your three main widgets. See the
> > API docs for QWidgetStack for more information.
>
> QWidgetStack allow the usrs to choose which Widget to use, but I
> don't want it. If the user want to show another widget, he must
> complish all the works on the current widget, or press "Return" button.
>
> > Hope this helps.

Use a QStackedLayout then, assuming you're on Qt 4.
-- 
Matt