[SOLVED] widgets moving after setVisible(false) in aQLayout

[dmcr]

//this not so obvious thing for me was not so long!

QWidget *abWidget::createWidgetWithSpacer( QWidget* w)
{
QWidget *wdgt = new QWidget;
QHBoxLayout *l = new QHBoxLayout;

l->addWidget( w, 0, Qt::AlignCenter ) ;
l->addSpacing(w->width());

wdgt->setLayout(l);
return wdgt;
}