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c++qtstylesheetqcomboboxqlabel

QLabel & QComboBox setFont does NOT work

I'm using Qt Framework to build an App supporting multiple languages. The default font is loaded from StyleSheet.

I override paintEvent() method, and setFont() method works OK for all widgets except for QLabel and QComboBox.

For QComboBox, the selected item has the correct font, the but the dropdown list items are using the default font. The Qt manual says setFont will set the font for both the comboBox button and the comboBox popup list to font.

Anyone happens to see this problem and have an idea to fix that? Thanks.

Solution

  • Answer is so long, because I wrote different approaches, choose the best for you.

    Try to do next:

    Create QListView, customize it (with stylesheet for example)

    Set model with your data and set view to QComboBox with special methods:

    setModel() and setView()

    http://qt-project.org/doc/qt-4.8/qcombobox.html#setView

    setStyleSheet("font-family: Arial;font-style: normal;font-size: 12pt");

    For label you can use stylesheet too, setFont or just set HTML code with suitable font:

      QFont f( "Arial", 14, QFont::Bold);
  label->setFont(f);

    With ComboBox you can use this for example:

    QStringList stringList;
stringList << "#hello" << "#quit" << "#bye";
QStringListModel *mdl = new QStringListModel(stringList);

QFont comboFont("Arial",16,-1,true);
QListView *vw = new QListView;
vw->setFont(comboFont);

ui->comboBox->setModel(mdl);
ui->comboBox->setView(vw);

    But it will install font to your data in popup menu, not in the header, so you can use also next:

    QFont comboFont("Arial",16,-1,true);
for(int i = 0; i< ui->comboBox->count(); i++)
{
    ui->comboBox->setItemData(i,QVariant(comboFont),Qt::FontRole);
}
ui->comboBox->setFont(comboFont);

    Wityh this code snippet you'll get popup menu and header with this font and you don't need create models and views.