Updating fixed window size

[Chris H]

I've got a magnification setting for my otherwise fixed-size window:
@void MainWindow::SetWidgetSizes ()
{
QFont normal (_labelStarted->font ());
normal.setPointSizeF (_magnification*11);
_labelStarted->setFont (normal);
_labelStarted->updateGeometry ();
setFixedSize (sizeHint().width(), sizeHint().height());
}@
I call this function every time I change the magnification. The text size of the widget changes, but the size of MainWindow doesn't. What do I need to do to get sizeHint() to give the new, updated preferred size for the layout (or to get the layout to recalculate its preferred size)?

[joonhwan]

did you try following?

@
void MainWindow::SetWidgetSizes ()
{
QFont normal (_labelStarted->font ());
normal.setPointSizeF (_magnification*11);
_labelStarted->setFont (normal);
_labelStarted->updateGeometry ();
setFixedSize (sizeHint().width(), sizeHint().height());

    this->updateGeometry();
}

@

[Chris H]

Yeah—no luck. The problem appears to be that sizeHint() is not changing when I change the label size.

[joonhwan]

Sounds like i was misunderstood.
it seems that it is needed to change centeral widget's size hint, though.