Scruffy Poo wrote:
> I have an application that I developed with an older
branch of wxruby
> some time ago, and I made heavy use of the
LayoutConstraints class.
> I've been looking around, but so far haven't found much
in the way of
> advice for this scenario. Is there any existing
documentation as to
> updating such applications?
>
I haven't seen any such documentation unfortunately.
The upgrade path is to use Wx::Sizer. These are fully
supported in
wxRuby and are used by all the major IDE packages so aren't
going anywhere.
I haven't used LayoutConstraints so don't really know how
these classes
work beyond the limited documentation. But from skimming:
- Where you want to position one widget in top-bottom or
left-right
sequence to another, instead of using
LayoutConstraint#left_of etc, with
Sizers you create a BoxSizer with Wx::VERTICAL or
Wx::HORIZONTAL, and
then add widgets to it in the order you want them to
appear.
- Where you want to size one widget relative to one another,
you pass
proportion arguments to Sizer#add. So if you want one widget
to be twice
the size of the other, you give the larger widget proportion
2, the
other proportion 1. You can use proportion 0 to give a
widget a minimum
"natural" size and retaining that size as the
containing parent is resized.
There is a Sizer tutorial on the wxRuby wiki which is a bit
dated but
might help. Also you might look into the "arrange"
methods of wxSugar
which make working with Sizers simpler and more reliable.
hth
alex
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