GNU bug report logs - #39735
27.0.60; bugs about XBM images

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From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 39735 <at> debbugs.gnu.org, ynyaaa <at> gmail.com
Subject: bug#39735: 27.0.60; bugs about XBM images
Date: Sun, 02 Aug 2020 16:36:03 +0200

Eli Zaretskii <eliz <at> gnu.org> writes:

>> Eli, would it make sense to do a backwards-incompatible change here and
>> rename the XBM parameters to :xbm-width and :xbm-height?
>
> Given the relative unimportance of XBM, that doesn't sound like a good
> idea.
>
> Can't we instead add new parameters, so that the change is
> backwards-compatible?

Do you mean adding :display-width and :display-height to the XBM
handlers (that would work like :width/:height in all the other image
handlers)?  I guess that would work, but it's rather awkward -- the code
that calls `create-image' would then have to check whether the image is
XBM or not to know what parameters to use...

Since XBM is so obscure, we could just document that XBM just doesn't
support scaling, and that it's an error to give those parameters (unless
you really mean XBM dimensions).  But again, that also means that
somebody that writes a loop of `create-images' must be careful to not
call it on XBM images...

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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