[news.eclipse.platform.swt] Re: problems with my composite

["Grant Gayed" <grant_gayed@xxxxxxxxxx>]

computeSize() answers the "ideal" size of the control based on its content.
However this does not apply well for Canvas because its content is painted
later, so 64x64 is a defined default size.  pack() behaves similarly since
it sets the receiver to its "ideal" size.

Grant


"Torsten 'Ilja' Rathgen" <vgap4@xxxxxx> wrote in message
news:ek7733$g0e$1@xxxxxxxxxxxxxxxxxxxx
> Grant Gayed schrieb:
> > ...and I just remembered, after disposing-then-recreating the
composite's
> > children, be sure to invoke layout() on the composite so that it will
> > calculate the appropriate sizes for all of the new children.
>
> Ahh I found the problem. I invoked layout() together with pack(). That
> is wrong with only layout() it works fine ... Thanks.
>
> But another question, why does pack() as well as
> computeSize(SWT.DEFAULT,SWT.DEFAULT) both give a preferred size of 64*64
> of a canvas, which I set the size to 160x120 (because the image i put
> into has this size) ???
>
> cu
> Ilja