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c++qtstylesheetqlistwidget

Style text of selected element in QComboBox or QListWidget?

Is it possible, using stylesheets, to change the appearence of the text contained in a selected item such as a QComboBox or a QListWidget? I've tried with a QListWidget but I can change everything except for the text properties.

This sample changes the text color but not its font:

QListWidget m_pListMain = new QListWidget(this);
m_pListMain->setStyleSheet("QListWidget:item:selected{"
                               "color: red;"
                               "font: bold;"
                               "}");

This, instead, works correctly:

QListWidget m_pListMain = new QListWidget(this);
m_pListMain->setStyleSheet("QListWidget{"
                               "color: red;"
                               "font: bold;"
                               "}");

But obviously it changes all the items, not just the selected one. What am I missing? (I am assuming the problem is the same with the QComboBox).

Solution

  • The only way I found is by connecting to this SIGNAL http://doc.qt.io/archives/qt-4.8/qlistwidget.html#currentItemChanged : 

    currentItemChanged(QListWidgetItem*,QListWidgetItem*)

    then, in a SLOT, switch the font at runtime:

    _HandleListItemChanged(QListWidgetItem *p_pItemCurrent, QListWidgetItem *p_pItemPrevious)
{
// Switch fonts: only selected must be bold
    QFont l_Font = p_pItemCurrent->font();
    l_Font.setBold(true);
    p_pItemCurrent->setFont(l_Font);

    l_Font = p_pItemPrevious->font();
    l_Font.setBold(false);
    p_pItemPrevious->setFont(l_Font);
}