QProgressDialog：如何调整对话框的大小以适应其内容？

Question

我测试下面的代码：

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);

剪切标题和取消按钮文本。我打电话给adjustSize（），但它没有用。如何调整对话框的大小以适应其内容？

Answer 1

您可以使用以下内容：使用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);