Bug 507575

Summary: gmic plugins using Category dropdown and Preset dropdown to select not working
Product: [Applications] digikam Reporter: Geoff King <gsking1>
Component: Plugin-Editor-GmicQtAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: caulier.gilles, metzpinguin
Priority: NOR    
Version First Reported In: 8.7.0   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: https://invent.kde.org/graphics/digikam/-/commit/7d5a522ae46c6e36fd3e9756c4c514456e1ddcad Version Fixed/Implemented In: 8.8.0
Sentry Crash Report:

Description Geoff King 2025-07-28 01:37:56 UTC 
The Simulate Film filter for g'mic is not working.  
The Category is shown, as is the Preset.  These can be selected but do not select anything and do not interact with each other. 

STEPS TO REPRODUCE
1. Select image, open editor,  open G'Mic
2. Select Simulate Film
3. Select a Category, other than the first (Black & White).  So select e.g Print Films (12)
4. The Preset dropdown does not change and there is not affect on the image.  Although the Black & White Presets can be selected. 
5.  The other basic photo adjustments do work, like gamma, contrast, etc.

This also affects the Color Presets filter. 
This happens on both mac and linux.

SOFTWARE/OS VERSIONS
Windows:  ?
macOS: 15.5
Linux/KDE Plasma:  Ubuntu 22.04
KDE Plasma Version: 
KDE Frameworks Version:  6.12.0
Qt Version: 6.8.3

ADDITIONAL INFORMATION
Comment 1 Maik Qualmann 2025-07-28 05:55:52 UTC 
This is likely a Qt6 issue; signal/slots have changed, for example, in QComboBox. I think the issue needs to be reported to Qt-gmic.

Maik
Comment 2 caulier.gilles 2025-07-28 05:59:30 UTC 
It's probably already fixed in a more recent release of Gmic-Qt. I need to update the code in my own repo from github. We have already another file about a similar topic. Still in my TODO...
Comment 3 caulier.gilles 2025-07-28 06:00:40 UTC 
Look at bug 491687. This one is already fixed in the new Gmic-qt code. It's also a bad Qt6 port.

Gilles
Comment 4 caulier.gilles 2025-08-04 02:05:41 UTC 
GMicQt plugins for digiKam updated to GMIC v3.6.0

https://github.com/cgilles/digikam-gmic-qt/commit/2887e3686b56795ad3c09d85beda6d45c875f2db
Comment 5 caulier.gilles 2025-08-04 02:15:25 UTC 
Git commit 7d5a522ae46c6e36fd3e9756c4c514456e1ddcad by Gilles Caulier.
Committed on 04/08/2025 at 02:14.
Pushed by cgilles into branch 'master'.

update
FIXED-IN: 8.8.0

M  +1    -1    NEWS

https://invent.kde.org/graphics/digikam/-/commit/7d5a522ae46c6e36fd3e9756c4c514456e1ddcad