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c++qtqprogressbar

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

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?

enter image description here

Solution

  • 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);