Different Icon Sizes for Fusion (and other) styles except System (windowsvista).

[lelik107]

This happens v5.1.3 - v5.2.0, Windows 10 Enterprise LTSC 2021 x64.

In Fusion style (default) and the other styles (Windows 11 and windows) the icon sizes for panel and menu are different. In menu and tray they're smaller. Fusion:

But in System (windowsvista) style these icons have the same sizes: on the panel, in the menu, in tray. System (windowsvista):

System (windowsvista) tray:

Is it a bug and this should be reported directly or a normal behaviour? Maybe I don't understand the idea behind it?

As for me System (windowsvista) style seems to be broken in v5.1.3 - v5.2.0, it doesn't look the same as in v5.1.2 or the other styles in v5.1.3 - v5.2.0.

[qBittUser]

As for me System (windowsvista) style seems to be broken in v5.1.3 - v5.2.0, it doesn't look the same as in v5.1.2 or the other styles in v5.1.3 - v5.2.0.

qBit uses Qt and different Qt versions, OS version, OS settings and chosen Qt Styles change how text and everything else looks, so it's normal if they aren't the same.

Is it a bug and this should be reported directly or a normal behaviour?

Maybe certain old Qt versions had bug, not new?

Unfortunately currently latest Qt release is v6.11.0, while qBit v5.2.0 uses Qt v6.10.3 and no plans for v6.10 to get more fixes.

So someone familiar with Qt code should make a small code as an better example and test how software desktop interface looks different between Qt versions and then decide to report to correct place.

Afterwards maybe Qt 6.11 or 6.12 will include a fix or more changes related to how various software looks and it might take long time before next qBit version will officially include newer Qt.

[lelik107]

This behaviour started after qBt v5.1.2 (Qt 6.9.1), qBt v5.1.3 (Qt 6.9.3) acts the same as v5.2.0, so I don't think Qt v6.10 specifically makes this difference.

[qBittUser]

So, someone with enough free time will have to build qBit with older and newer Qt and compare how Qt styles look like to know exact Qt versions that are affected and also consider testing how things look with different OS versions.

Then recheck Qt changelog or code, build a small code example and then submit issue to Qt developers. Afterwards hope someone will share explanation or info if there's plans to include a fix in Qt 6.11 or Qt 6.12+.

I think without anyone doing extra tests beforehand or not give proper Qt code example to reproduce, then it might take too long to get Qt developers to even consider acknowledge or revert any changes (include fix in newer version) and maybe best if someone familiar with Qt should submit regression bug to correct place.

https://doc.qt.io/qt-6/known-issues.html

[lelik107]

@qBittUser You might be right, anyway I reported this to the devs, hope they'll address and fix it in some time.
#24170