GNU bug report logs -
#47095
27.1; Feature request: mirror image display
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Reported by: ynyaaa <at> gmail.com
Date: Fri, 12 Mar 2021 10:35:01 UTC
Severity: wishlist
Found in version 27.1
Fixed in version 29.1
Done: Lars Ingebrigtsen <larsi <at> gnus.org>
Bug is archived. No further changes may be made.
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Message #20 received at 47095 <at> debbugs.gnu.org (full text, mbox):
On Mon, Dec 27, 2021 at 10:36:43AM +0200, Timo Taipalus wrote:
> It seems image-mode does not have capability for image mirroring, so
> here's a patch for it. Tested NS (macOS) and XRender/Cairo
> implementations. As it is, it has no effect if ImageMagick is
> enabled.
I suspect this won't work at all on windows due to the way the
transform is implemented there, but someone should probably check.
> I chose 'h' as the action key because 'm' and 'f' were reserved, and
> 'h' is easy to memorize ("horizontal").
'r' for reverse, maybe?
Is it possible to do the mirroring before the rotation instead of as
part of it? I feel like it would make the code a little clearer,
although I suspect you're doing it in the rotation to reduce the
number of calculations? Would it be possible to have both horizontal
and vertical mirroring?
--
Alan Third
This bug report was last modified 2 years and 352 days ago.
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