| Trolltech Home | Qt-jambi-interest Home | Recent Threads | All Threads | Author | Date | |
| All threads index page 1 | |
Hello again, I'm struggeling a bit to get my QListWidget scrollable so that it fills the scroll area when I resize. I've tried the following: <snip> list = new QListWidget(); QScrollArea scroller = new QScrollArea(); scroller.setWidget(list); </snip> but the list stay the same size (inside the scrollarea) when I resize. Do I need to add some layout code inside here somewhere? Regards, Helge Fredriksen
As far as I know the listWidget already add scrollbars itself so it has the size of the content and never just based on the window size (which IMO would be wrong). I'm not sure why you try to do this. It would be my understanding that just using the widget as is will give the behavior that's normal. Maybe you can explain your usecase a little more since I'm thinking you are solving your problem a bit to complex :) On Thursday 14 September 2006 14:02, Helge Fredriksen wrote: > I'm struggeling a bit to get my QListWidget scrollable so that it fills > the scroll area when I resize. > I've tried the following: > > <snip> > list = new QListWidget(); > QScrollArea scroller = new QScrollArea(); > scroller.setWidget(list); > </snip> -- [ signature omitted ]
Attachment:
pgp68hNu0VjEG.pgp
Description: PGP signature
Helge Fredriksen wrote: > Hello again, > > I'm struggeling a bit to get my QListWidget scrollable so that it fills > the scroll area when I resize. > I've tried the following: > > <snip> > list = new QListWidget(); > QScrollArea scroller = new QScrollArea(); > scroller.setWidget(list); > </snip> > > but the list stay the same size (inside the scrollarea) when I > resize. Do I need to add some layout code inside here somewhere? Hi Helge, As also pointed out by Thomas, this appraoch is wrong. Qt works differently than swing with regards to how these kind of components are built together. In Qt, we try to provide more selfcontained compoenets, meaning that components that you often (if not always) end up putting scrollbars on will have that functionality built in. The proper way of setting up a list widget is simply: list = new QListWidget We believe that if a cerain pattern of code shows up for every time you use a widget, then that pattern belongs in the library ;-) This is also illustrated with the various table examples I've posted on this list, and also with the TextEdit demo, with the scrollable text field. - In the cases where a scrollbar is not enough you can set the scrollbar policy to be turned off, individually for x and y if needed. http://doc.trolltech.com/4.2/qabstractscrollarea.html#horizontalScrollBarPolicy-prop http://doc.trolltech.com/4.2/qabstractscrollarea.html#verticalScrollBarPolicy-prop If you want your widget to have a specifed size or resize behaviour you need to put it into a layout and possibly reimplement the sizeHint() and tweak its size policies. http://doc.trolltech.com/4.2/qwidget.html#sizeHint-prop http://doc.trolltech.com/4.2/qwidget.html#sizePolicy-prop The simples way to get familiar with these is to play around with them in designer. Use of layouts are also illustrated in all our examples. - best regards, Gunnar