[news.eclipse.platform.swt] Re: Widgets not shown until the shell is res

[noone@xxxxxxxxxxx (Mark McLaren)]

Thanks for the response, but it turned out to be a much simpler fix: call 
getShell().setSize() after adding the widgets to the panel.

Mark

Veronika Irvine wrote:

> The way Composite.layout(true) works is that the composite you call it on 
> (panel in your case) will update the size and location of its direct 
> children.  If any of the children are resized as a result of this action, 
> the resized child will also have a layout performed.  However, the following 
> conditions apply 1) the child must have a Layout assigned to it and 2) the 
> cache will not be flushed (equivalent of calling (layout(false)).  If a 
> child does not change size, it will not get laid out.  What often happens is 
> that there will be some Composite that has a fixed size (call it C).  If you 
> make a change to a child of C then call layout(true) on any of the parents 
> of C, nothing will get laid out in C.  You must call layout(true) on C.

> In 3.1 we are adding new API to make this easier.  See 
> Composite.layout(boolean changed, boolean all) and 
> Composite.layout(Control[]).

> "Christian Hauser" <c.hauser@xxxxxxxxx> wrote in message 
> news:cnjbjq$l7g$1@xxxxxxxxxxxxxxxxxx
> > Mark McLaren wrote:
> > > I'm finding my widgets aren't being displayed until I resize the shell 
> > > they are in - then suddenly they appear!
> > >
> > > What method do I need to call to make them appear?  These don't seem to 
> > > work:
> > > panel.layout(true) panel.getShell().redraw()
> >
> > What happens if you call panel.getShell().layout(true)? Try calling 
> > layout(true) on different panels to see if it makes a difference.
> >
> > Had this problem, too, some time ago and layout(true) on the right 
> > composite helped.
> >
> > HTH,
> >   Christian