thumbnail for XCF files

[leoutation at gmx.fr]

On 11/12/25 8:42 AM, frederic chaume wrote:
> Hi Kai
> 
> I checked in the layer view , the flag Fx is unset for each layer (and 
> in any case , not able to set it), unless this can be configurede 
> somewhere else
> and "Better compression" seems also unset

You may leave a message here https://bugs.kde.org/show_bug.cgi?id=491795

> 
> Regards
> Frederic
> 
> 
> Le 11/11/2025 à 17:35, leoutation at gmx.fr a écrit :
>> On 11/10/25 12:45 PM, kaizubg at gmail.com wrote:
>>> Hi,
>>>
>>> This has been on my list of wanted, but not requested, digiKam 
>>> feature list quite some time.
>>>
>>> Tested with a recent 8.9.0 appimage on Fredora 43 . The thumbnail and 
>>> the preview of the XCF file are visible on digiKam correctly.
>>>
>> Hi
>> Correctly with "non destructive editing", did you test it?
>> See report about three XCF issues and their causes:
>> KImageformats doesn't display some XCF files created with Gimp 3
>> https://bugs.kde.org/show_bug.cgi?id=491795
>>
>>> Thanks!
>>>
>>> Kai
>>>
>>>
>>>
>>>
>>> ma, 2025-11-10 kello 10:20 +0100, Gilles Caulier kirjoitti:
>>>> Hi,
>>>>
>>>> The XCF thumbnailer comes from the KDE kimageformat codecs collection.
>>>> The KDE framework used in 8.8.0 is not the last stable version
>>>> published. Thttps://invent.kde.org/frameworks/kimageformats/-/ 
>>>> issueshis <https://invent.kde.org/frameworks/kimageformats/-/issueshis>
>>>> can explain the dysfunction if this one is now fixed in the last
>>>> version of code.
>>>>
>>>> I plan to update the KDE framework for the digiKam 8.9.0.
>>>>
>>>> XCF code history :
>>>> https://invent.kde.org/frameworks/kimageformats/-/commits/master/ 
>>>> src/ imageformats/xcf.cpp?ref_type=heads <https://invent.kde.org/ 
>>>> frameworks/kimageformats/-/commits/master/src/imageformats/xcf.cpp? 
>>>> ref_type=heads>
>>>> KDE framework used in 8.8.0 : 6.17.0 (2025-08-08)
>>>> Current KDE framework version : 6.19.0 (2025-10-16)
>>>>
>>>> To report this problem (if it's not yet fixed), please create an
>>>> UPSTREAM bug in this repository:
>>>>
>>>> https://invent.kde.org/frameworks/kimageformats/-/issues <https:// 
>>>> invent.kde.org/frameworks/kimageformats/-/issues>
>>>>
>>>> Best regards
>>>>
>>>> Le lun. 10 nov. 2025 à 09:45, frederic chaume
>>>> <frederic.chaume at gmail.com <mailto:frederic.chaume at gmail.com>> a 
>>>> écrit :
>>>>>
>>>>> Hi all
>>>>>
>>>>> I'm using Gimp 3.0 to create pictures, and until DK8.7, I was able to
>>>>> see the thumbnail of the xcf file, but in DK8.8, if I modify the 
>>>>> file, I
>>>>> don't see the thmbnail any more , just the file type (XCF).
>>>>> Any idea?
>>>>>
>>>>> I'm on Win11
>>>>>
>>>>> regards
>>>>> Frederic
>>>>>
>>>>>
>>>
>>
>