Re: Undeprecate GtkAlignment ?

On 06/04/2015 03:57 AM, Emmanuele Bassi wrote:

On 4 June 2015 at 10:26, Niels Nesse <nnesse sonic net> wrote:

Some time ago we have discussed this on IRC and eventually filed the bug:
As you can see undeprecation of GtkAlignment would be helpful for us.
Alternatively a new container could be developed but some of its features
would actually be the same as of GtkAlignment.

About that bug. I included some language mentioning functionality
similar to GtkAlignment because I thought that it might fit with my main
idea. I'm still interested in feedback about adding a convenience
container that would allow preferred sizes to be "set" without
overriding GtkWidget disregarding any discussions about GtkAlignment
like functionality.

You should probably prototype a patch; you can discuss it here; on the
#gtk+ IRC channel (which is where you'll find GTK developers), or
iterate it on Bugzilla.


I am wondering if losing GtkAlignment is a feature regression.

The class is still there, so there's no regression.

If I port
to a later Gtk version that removes GtkAlignment how would I keep the
layout of my widgets the same? Could it be done without changes to Gtk

I assume I'll have to keep writing this answer every other month, for
the rest of my life, even if it's been the exact same policy for the
past 15 years.

Deprecated classes, properties, signals, and functions in GTK+ do not
go away until the major version of GTK+ is bumped. At that point, you
can keep targeting the previous major version of GTK or port to the
new major version, alongside with every other API changes we made in
between. It's important to note that we're not planning a major
version bump any time soon.

I wasn't confused about the deprecation model. My question was more
about what the consequence of the eventual removal might be. How would
an application go about getting the same effect at GtkAlignment without
using it directly? Again assuming values for scale and alignment that
are fractional.


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