What happens to widgets added to QTabWidget?

django.Reinhard

Hi,

I had lots of widgets in a stacked layout and wanted to group some of them in a QTabWidget but something very strange happens:

This is the page in stacked layout:

and this is the same widget (unchanged!) added to a QTabWidget.

Font and colors are read from QSettings and applied by QLabel::setStyleSheet(...)

Every button is connected to functions that will raise a dialog to change color/font - but when the widget is part of QTabWidget, no button works.

some code excerpts - first the stacked page:

  page = new PreferencesEditor(":/src/UI/Settings.ui", mainView);
  mainView->addPage(page);
  ui->menuMain->addAction(page->viewAction());

  SettingsNotebook* nb = new SettingsNotebook(this);

  nb->addPage(new ToolManager(conn, nb));
  nb->addPage(new FixtureManager(Core().axisMask(), nb));
//  nb->addPage(new PreferencesEditor(":/src/UI/Settings.ui", nb));
  mainView->addPage(nb);
  ui->menuMain->addAction(nb->viewAction());

... and here the tabbed page:

//  page = new PreferencesEditor(":/src/UI/Settings.ui", mainView);
//  mainView->addPage(page);
//  ui->menuMain->addAction(page->viewAction());

  SettingsNotebook* nb = new SettingsNotebook(this);

  nb->addPage(new ToolManager(conn, nb));
  nb->addPage(new FixtureManager(Core().axisMask(), nb));
  nb->addPage(new PreferencesEditor(":/src/UI/Settings.ui", nb));
  mainView->addPage(nb);
  ui->menuMain->addAction(nb->viewAction());

addPage is just a wrapper around addTab which uses the objectName as Name for the tab.

Christian Ehrlicher

You set a stylesheet to your QTabWidget which is also applied to the children. Fix your stylesheet so it's only applied to your QTabWidget.

django.Reinhard

Hi,

maybe I don't understand you.

At the moment I don't care for the QTabWidget at all.
The page with the buttons and labels is a separate class and this class applies stylesheets to the labels.

beside the stylesheet issue - I don't understand, why the button connections don't work any more.

I added another widget, which is a master/detail widget with QTreeView and QTableView - there the model/view connection don't work when the widget is added to the QTabWidget.

I guess I have a big misunderstanding of QTabWidget.

JonB

@django-Reinhard said in What happens to widgets added to QTabWidget?:

Every button is connected to functions that will raise a dialog to change color/font - but when the widget is part of QTabWidget, no button works.

Where do you do any of these connect()s?

django.Reinhard

Hi,

thank you for your attention and support!
You're a real professional!
The right question.

It took me a while to get it, but - of cause - you where right.
I'm getting old.
I forgot the second purpose of DynWidget ancestors - late initialization. So it was a typical PEBCAK.