[dolphin] [Bug 503036] New: Information panel preview exhibits jarring scaling/resize animation when switching between files with different aspect ratios

[Max]

https://bugs.kde.org/show_bug.cgi?id=503036

            Bug ID: 503036
           Summary: Information panel preview exhibits jarring
                    scaling/resize animation when switching between files
                    with different aspect ratios
    Classification: Applications
           Product: dolphin
           Version: 25.03.90
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: panels: information
          Assignee: dolphin-bugs-null at kde.org
          Reporter: 1 at 3421.ru
                CC: kfm-devel at kde.org
  Target Milestone: ---

Created attachment 180421
  --> https://bugs.kde.org/attachment.cgi?id=180421&action=edit
Video showing the bug, all animations in kdeglobal/dolphinrc are disabled.

STEPS TO REPRODUCE
1. Open Dolphin.
2. Ensure the Information Panel is visible (View -> Panels -> Information Panel
or F11).
3. Ensure previews (e.g., for images) are enabled in the Information Panel
settings.
4. Select a file with a preview (e.g., a landscape image). Observe the preview
in the panel.
5. Immediately select another file with a preview that has a significantly
different aspect ratio (e.g., a portrait image or a square one).

OBSERVED RESULT
The preview image widget in the Information Panel visibly and rapidly
scales/resizes from the previous preview's dimensions/aspect ratio to the new
one's. This creates a jarring visual "jump", "jitter" or animation effect that
is independent of the global KDE/Qt animation settings.

EXPECTED RESULT
Ideally, the new preview image should appear instantly without any visible
scaling animation or transition from the previous preview's dimensions.
Alternatively, there should be a setting to disable this specific scaling
effect, or it should respect the global `AnimationsEnabled=false` /
`AnimationDurationFactor=0.0` settings in `kdeglobals`.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux (Using Cinnamon DE, not Plasma)
Qt Version: qt6-base 6.9.0-1

ADDITIONAL INFORMATION
- Standard methods to disable animations (`AnimationsEnabled=false`,
`AnimationDurationFactor=0.0` in `~/.config/kdeglobals`) have been tried and do
*not* affect this specific preview scaling behavior in the information panel.
- Attempting to set `AnimationDurationFactor=0` within the `[KDE]` section of
`~/.config/dolphinrc` also had no effect on this behavior.
- The effect is visually distracting and uncomfortable, especially when
browsing quickly through many files (like photos) with varying aspect ratios.
- Using Arch Linux with Cinnamon DE, Dolphin installed from official Arch
repositories. Windowing system is X11.

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