How do I insert QTabBar in Qt Designer?

Question

This might very well be very stupid question, but I can not find QTabBar in Qt Designer. There is QTabWidged in the "Containers" group, but it is not the same - I don't need different pages, I just need the tab bar.

(I am using 4.7.2 version of Qt Designer under KDE4 on debian.)

score 7 · Accepted Answer · answered Apr 01 '11 at 23:45

7

There is no item in the designer that is a QTabBar, the only way you could accomplish this is by creating a plain QWidget and promoting it to a tabbar, but you will then have to set up the whole thing in code.

As for the pages you do realize that you can also promote the content widgets of a QTabWidget in designer to any subclass of QWidget, builtin or something that you created.

answered Apr 01 '11 at 23:45

Harald Scheirich

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You mean promote in code or there is a way to do it in Designer? The reason I do not need pages is that there is going to be quite expansive widget on every "page" so I prefer to have only one instance of this and reload its contents on every tab click. – gorn Apr 01 '11 at 23:50
Information on [promoting in Qt Designer in 4.8](http://qt-project.org/doc/qt-4.8/designer-using-custom-widgets.html). – Phrogz Oct 19 '14 at 22:49

score 2 · Answer 2 · answered Oct 19 '14 at 22:53

2

In Qt Designer 4.8 you can add a Widget where you want the QTabBar to be, and then right-click and choose "Promote To ▸ QTabBar". (Note: "Promote To", not "Morph Into")

answered Oct 19 '14 at 22:53

Phrogz

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score 0 · Answer 3 · edited Jul 13 '23 at 21:07

Create a Custom Tab Widget class inheriting from QTabWidget and set the tab bar to your custom tab bar. Like this:

class CustomTabWidget(QTabWidget):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.setTabBar(CustomTabBar())

After that, you can just promote your existing QTabWidget element whose tab bar you wish to change from within the Qt Designer.

Note: I have done it in PySide6. Although, I hope it aleast gives an idea about how to solve the problem.

How do I insert QTabBar in Qt Designer?

3 Answers3