QProgressDialog: How to adjust the size of the dialog to fit its contents?

Question

I test with code below:

QProgressDialog* dialog = new QProgressDialog("Message", "Close", 0, 10);
dialog->setWindowTitle("Long Long Long Long Title");
dialog->setCancelButtonText("Long Long Long Click this button to cancel");
dialog->setWindowModality(Qt::ApplicationModal);
dialog->adjustSize();
dialog->setValue(5);

The title and the cancel button text are cut. I called adjustSize(), but it didn't work. How to adjust the size of the dialog to fit its contents?

Use `Layout`s, check [docs](http://doc.qt.io/qt-5/examples-layouts.html). — KernelPanic, Dec 10 '15 at 08:09
It doesn't look pretty when a button has such a long name. You better to set a short name and use long description as a tool tip text. — vahancho, Dec 10 '15 at 08:12
@KernelPanic, The QProgressDialog is provide by QT, Can I edit its layout? — ldlchina, Dec 10 '15 at 08:18

score 2 · Accepted Answer · answered Dec 10 '15 at 12:40

You can use the following: use the QLayout...

QProgressDialog* dialog = new QProgressDialog("Message", "Close", 0, 10);
dialog->setWindowTitle("Long Long Long Long Title");
dialog->setCancelButtonText("Long Long Long Click this button to cancel");
dialog->setWindowModality(Qt::ApplicationModal);
dialog->setValue(5);

QVBoxLayout *layout = new QVBoxLayout;
foreach (QObject *obj, dialog->children()) {
    QWidget *widget = qobject_cast<QWidget *>(obj);
    if (widget)
        layout->addWidget(widget);
}
dialog->setLayout(layout);

QProgressDialog: How to adjust the size of the dialog to fit its contents?

1 Answers1