Table header font shape is different between Windows OS and Raspberry Pi

[IknowQT]

• Raspberry
  

I increased the header font size on Raspberry Pi.
The actual font is not stretched, but the positions are stretched.

*Window

The following is when the same code is executed in Windows.
You can check that the font is applied normally.

Why does the difference occur?

If the two OSs have the same shape, the code can be questioned, but is the OS different if the two OSs have the same shape?

*Add
For reference, I am using QAbstractTableModel.

https://stackoverflow.com/questions/30111992/how-to-modify-header-font-size-in-qtableview-osx-specific

There are several people who have a similar situation to me.
Is this a bug in qt?

[SGaist]

Hi,

You should add:

• Qt version
• Linux distributions
• Desktop environment

Both on your desktop and RPi.

[IknowQT]

@SGaist

Qt version: 5.15.2
Linux distributions: Ubuntu 20.04.3 LTS
Desktop environment: window10

[Christian Ehrlicher]

I doubt there is the same data - in one screenshot you've 'WaveLength', in the other 'WaveLength5' - maybe there are linebreaks too. Make sure that you work on the same data when comparing screenshots.

[IknowQT]

@Christian-Ehrlicher

I have already confirmed that I have the same data.
Putting 5 on it was just to make sure the text changes.

[Christian Ehrlicher]

Use a simple model (or QTableWidget) without your test application to see if it's really a program on the Qt side (which I doubt).
Also try to start with a different style (e.g. windows) on your raspberry.

[IknowQT]

@Christian-Ehrlicher

I also did several tests. I tested it after running it on Ubuntu OS, but I think it is a problem on the qt side
Because when I ran the same in Ubuntu environment, the result was the same with Raspberry. And there are several people who are raising this issue.

[Christian Ehrlicher]

So did you actually run it on the raspberry pi with the windows style?

[IknowQT]

@Christian-Ehrlicher

Are you referring to the desktop version of the Windows-style Raspberry Pi?
I'm developing in a raspberry environment on the desktop version.

[Christian Ehrlicher]

I don't understand your question.
You posted a screenshot with a wrong height. Start this application with the windows style and see if it's still an issue.

[J.Hilk]

@IknowQT first check what styles are available on your target OS

qDebug() << QStyleFactory::keys();

than set it to "Windows" if available

QApplication app(argc, argv);
qDebug() << QStyleFactory::keys();
app.setStyle(QStyleFactory::create("Windows"));