[solved] Aligning widgets in center horizontally in a vertical box layout

[hans977]

I have a widget with a vertical box layout in it and I want to line up the widgets in the center as they are different widths. I tried "layout->setAlignment(Qt::AlignHCenter);" but that does not seem to do anything. Everything still aligns on the left.

Here is some test code I was playing around with.

@int main(int argc, char *argv[]) {

QApplication app(argc, argv);

QWidget *win = new QWidget();

QVBoxLayout* layout = new QVBoxLayout(win);
layout->setAlignment(Qt::AlignHCenter);

QFrame * line = new QFrame(win);
line->setObjectName(QString::fromUtf8("line"));
line->setFrameShape(QFrame::HLine);
line->setLineWidth(2);
line->setFrameShadow(QFrame::Plain);
layout->insertWidget(0, line);

QLineEdit* ln1 = new QLineEdit();
ln1->setText("1");
ln1->setFixedWidth(ln1->width() / 4);

// ln1->setAlignment(Qt::AlignHCenter); // this aligns the text in lineEdit
layout->insertWidget(0, ln1);

QLineEdit* ln2 = new QLineEdit();
ln2->setText("2");
layout->insertWidget(6, ln2);

win->show();

return app.exec();

}
@

[inspired]

try this
QLayout::setAlignment ( QWidget * w, Qt::Alignment alignment )
meaning layout->setAlignment(line, Qt::AlignHCenter);

(repeat for each one)

and btw, where do you apply the layout for the widget?
win->setLayout(layout); or is it automatically applied with the layout constructor?

[hans977]

[quote author="inspired" date="1357148829"]try this
QLayout::setAlignment ( QWidget * w, Qt::Alignment alignment )
meaning layout->setAlignment(line, Qt::AlignHCenter);

(repeat for each one)

and btw, where do you apply the layout for the widget?
win->setLayout(layout); or is it automatically applied with the layout constructor?[/quote]

Thanks Inspired. That seems to work. If I apply the alignment to the frame/line it will diaper, but I do not need to center it so we should be fine.

I guess the layout gets applied to the widget when I set its parent in the constructor. I seems to work that way although I never did see that in the documentation.