QComboBox: Bold Font for selected item in drop down list

[anshah]

I am trying to get the text for a selected item as BOLD in the QComboBox drop down list. I have looked at all the forums and tried stylesheets, palletes, and setItemData but nothing seems to work.

Here is a snippet of my QComboBox setup. Any any help would be appreciated:

QStringList strList;
m_pModel = new QStringListModel(strList, this);

m_pSortFilterProxyModel = new QSortFilterProxyModel(this);
m_pSortFilterProxyModel->setSourceModel(m_pModel);
m_pSortFilterProxyModel->setFilterCaseSensitivity(Qt::CaseSensitive);

m_pComboBox->setModel(m_pGatewaySortFilterProxyModel);
m_pComboBox->setSizeAdjustPolicy(QComboBox::AdjustToContents);
m_pComboBox->setInsertPolicy(QComboBox::NoInsert);
m_pComboBox->setEnabled(true);

[JonB]

@anshah
Nothing in your code has anything to do with any text, selection, or boldness....

Are you sure one can have bold text in a combo box? I'm not saying you can't, just I don't know if it uses a native control which does not allow it?

[Christian Ehrlicher]

@JonB said in QComboBox: Bold Font for selected item in drop down list:

Are you sure one can have bold text in a combo box?

At least in the dropdown box, yes. It's a QStandardItemModel so:

QStandardItemModel *m = qobject_cast<QStandardItemModel *>(cbx->model());
QStandardItem *item = m ? m->item(row) : nullptr;
if (item) {
  auto f = item->font();
  f.setBold(true);
  item->setFont(f);
}

[JonB]

@Christian-Ehrlicher
But isn't a QComboBox rendered as the native windowing system control? How do you know whether, say, GNOME or Unity can boldize an item in a dropdown?

[Christian Ehrlicher]

@JonB No, it's not - it's more or less an itemview: https://code.woboq.org/qt5/qtbase/src/widgets/widgets/qcombobox.cpp.html#_ZN25QComboBoxPrivateContainer10paintEventEP11QPaintEvent

[JonB]

@Christian-Ehrlicher
So are you saying the QComboBox is not whatever the native windowing system's "combobox" control is? Instead it's drawn via Qt code? I assumed under Windows it was the Windows combobox, etc.

[Christian Ehrlicher]

At least it looks like, but did not look at the style plugins though.