On 03/15/2016 10:51 AM, Kevin Payne wrote:
A very quick bit of rummaging round in source code leads me to libgimpthumb\gimpthumb-utils.c
Where it shows a fall-back if the thumbnails directory cannot be created - it uses the tmp dir instead.
Kevin
Hmm,
https://specifications.freedesktop.org/thumbnail-spec/thumbnail-spec-latest.html#DIRECTORY
says the "normal" place for the thumbnail directory is
$XDG_CACHE_HOME/thumbnails/ and the "normal" location for
$XDG_CACHE_HOME is /$HOME/.cache.
For whatever reason on my computer $XDG_CACHE_HOME is set to
/tmp/elle/.cache. So that's probably why GIMP is writing thumbnails to
the tmp folder.
If I start GIMP by adding the line:
export XDG_CACHE_HOME=/home/elle/.cache
then GIMP saves thumbnails to /home/elle/.cache/thumbnails.
The thumbnail contains information that points to the corresponding XCF
file, for example:
Description : Thumbnail of
file:///home/elle/edit/digiKam/working/080810-2252-1855-house-rainbow.xcf
Software : GIMP 2.9.3
Thumb URI :
file:///home/elle/edit/digiKam/working/080810-2252-1855-house-rainbow.xcf
digiKam doesn't offer the option of adding a hidden folder to the database.
Copying the thumbnail folder to a folder that digiKam monitors and
trying to open the correspoinding XCF file by opening the the thumbnail
just opens the thumbnail itself, not the XCF file.
Are there any image/file browsers that can use the uri location
information in the thumbnail to open the corresponding XCF file rather
than the actual thumbnail png?
I mean besides Nautilus. I don't want to install Nautilus on my computer
as it would mean making considerable changes to my Gentoo installation.
As an aside,
https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html
says $XDG_CACHE_HOME is for "user-specific non-essential (cached) data".
It seems to me that the thumbnails that make it possible to browse one's
XCF files don't count as "non-essential". As it is, for the thumbnails
to be useful I'd have to use GIMP to recreate thumbnails for the 500 or
so XCF files currently indexed by digiKam, and that would take an
enormouse amount of time to accomplish.
Thumbnail browsing is at best a temporary and fragile workaround for
using an image DAM software like digiKam, that can make its own
thumbnails (except for GIMP 2.9 XCF files), or at least can read a
thumbnail already embedded in the image file.
Are GIMP 2.9 XCF files saved to disk with embedded thumbnails?
Best,
Elle
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