How to enable anti-aliasing on Qlabel?

Question

My QLabels look quite ugly, it seems that there's no anti-aliasing. How can I enable this feature (assuming it's available)?

This is a very wild guess since I don't have experience with Qt, but does setting a background color solve the problem ? Many UI systems don't do font anti-aliasing without a background since the aliased pixels depend on a background color to blend in to. — DarkDust, Jul 19 '11 at 11:20
You probably should tell what OS you are using. My QLabels look just fine. — , Jul 19 '11 at 11:29

score 15 · Accepted Answer · edited Oct 03 '11 at 23:39

15

QLabel * l = new QLabel();
QFont f=l->font();
f.setStyleStrategy(QFont::PreferAntialias);
l->setFont(f);

you may also alter application font settings, to be applied to all widgets you use...

QFont f=QApplication::font();
f.setStyleStrategy(QFont::PreferAntialias);
QApplication::setFont(f);

edited Oct 03 '11 at 23:39

nonot1

answered Jul 19 '11 at 11:34

Raiv

score 2 · Answer 2 · answered Jul 19 '11 at 11:37

2

You can set the Antialisasing attribute in the label's font to PreferAntialias. You can do it in QtCreator or by code like this :

QFont f("Times", 50);
f.setStyleStrategy(QFont::PreferAntialias);
ui->label->setFont(f);

Hope this helps

answered Jul 19 '11 at 11:37

Yassine Zaroui

2 Answers2