Re: Setting usize to (0,0)

[Ronald Bultje <rbultje ronald bitfreak net>]

Hi Ian,

On Thu, 2002-11-07 at 22:04, Ian King [ES] wrote:
> > set_usize(0) doesn't shrink, it sets the size to 'no other size than 0'.
> Sure, so this means it should have an initial size of (0, 0), unless placed

No, it just means to have a final size of (0, 0).

> in to a container where it can expand to its allocation.  set_usize is
> totally disregarding zero as a value, is this a bug?  Most of our containers

A feature, I guess. size <= 0 aren't real sizes, they're interpreted so
that auto-sizing will be applied, just like for any default widget. I
often used set_usize(-1, 24); to set a height of 24 and a 'whatever'
width, or the other way around, in Gtk-1.2 (note that set_usize() is
deprecated in Gtk-2.0).

The Gtk experts on this list can probably tell you more about this. I'd
use a GdkWindow that I'd paint on and resize/locate that manually in the
widget, or something similar, where auto-sizing is still used for your
widget, and the widget fills in the space it gets in whatever way is
needed.

Ronald