QTabWidget rendering issue?

[Matic Kukovec]

I apologize, the screenshot for the overriden sizeHint method:

def sizeHint(self):
            return super().sizeHint()*2

looks actually like this:
[cid:805d4369-2def-4d4e-a248-5c83d839100d]
________________________________
From: Matic Kukovec <kukovecmatic at hotmail.com>
Sent: Saturday, April 27, 2024 7:23 PM
To: PyQt at riverbankcomputing.com <pyqt at riverbankcomputing.com>
Subject: Re: QTabWidget rendering issue?

Also note that any 'repaint', 'polish' and 'unpolish' methods on the QTabBar have no effect in the tab-bar in this state,
only clicking on another tab renders it correctly.
________________________________
From: Matic Kukovec <kukovecmatic at hotmail.com>
Sent: Saturday, April 27, 2024 7:09 PM
To: PyQt at riverbankcomputing.com <pyqt at riverbankcomputing.com>
Subject: Re: QTabWidget rendering issue?

I tried overriding the 'sizeHint' method of the QTabBar with this to see what would happen:

def sizeHint(self):
            return super().sizeHint()*2

but that only changes the initial tabs to this:
[cid:261f3337-aab2-47f4-81cc-5debaa2696f9]
________________________________
From: Matic Kukovec <kukovecmatic at hotmail.com>
Sent: Saturday, April 27, 2024 6:50 PM
To: Charles <peacech at gmail.com>
Cc: PyQt at riverbankcomputing.com <pyqt at riverbankcomputing.com>
Subject: Re: QTabWidget rendering issue?

Ok, thanks, will do some testing into that direction.
________________________________
From: Charles <peacech at gmail.com>
Sent: Saturday, April 27, 2024 6:34 PM
To: Matic Kukovec <kukovecmatic at hotmail.com>
Cc: PyQt at riverbankcomputing.com <pyqt at riverbankcomputing.com>
Subject: Re: QTabWidget rendering issue?

Maybe QTabWidget does not compute the sizeHint based on the custom font size?

On Sat, Apr 27, 2024 at 11:12 PM Matic Kukovec <kukovecmatic at hotmail.com<mailto:kukovecmatic at hotmail.com>> wrote:
This happens even without any styling changes, seen here:
[cid:ii_18f2067d08bcb971f162]
Note that this is a plain vanilla QTabBar, no sub-classing.

Regards,
Matic

________________________________
From: Matic Kukovec <kukovecmatic at hotmail.com<mailto:kukovecmatic at hotmail.com>>
Sent: Saturday, April 27, 2024 12:59 PM
To: PyQt at riverbankcomputing.com<mailto:PyQt at riverbankcomputing.com> <pyqt at riverbankcomputing.com<mailto:pyqt at riverbankcomputing.com>>
Subject: QTabWidget rendering issue?

Hi guys,

Specs:

  *
Windows 10 x64
  *
Python 3.12
  *
PyQt 6.6.1

I have a QTabWidget inside a layout and when initial layout is built not all of tabs are rendered.
The selected tab is rendered as the first tab, but when I select a different tab, all the tabs render correctly,
here is an example:
[cid:ii_18f2067d089cb971f161]
As you can see, when the initial layout is rendered the 'systick.c' tab is shown as the first, but in reality
the 'main.c' tab should be first, but it only appears after I click any non-current tab.

Any idea of where the problem is?

Regards,
Matic

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