#include <QDebug>
#include <QApplication>
#include <QWidget>
#include <QVBoxLayout>
#include <QTreeView>
#include <QPushButton>
#include <QHeaderView>
#include <QStandardItem>
#include <QStandardItemModel>

int main(int argc, char** argv) {
    QApplication app(argc, argv);

    auto widget = new QWidget;
    auto box = new QVBoxLayout(widget);
    auto model = new QStandardItemModel(widget);
    model->appendRow(QList{
                         new QStandardItem("Double Click Me! Double Click Me! Double Click Me! Double Click Me!"),
                         new QStandardItem("test"), // comment this line to avoid crash
                     });
    auto tree = new QTreeView(widget);
    box->addWidget(tree);
    tree->setModel(model);
    tree->header()->setSectionResizeMode(QHeaderView::ResizeMode::ResizeToContents);    widget->show();

    return app.exec();

}