编辑 QTreeWidgetItem 时捕获 ESC 按键事件

I'm developing a project in Qt. I have a QTreeWidget(filesTreeWidget) whith some file names and a button for creating a file. The Create button adds to the filesTreeWidget a new item(the item's text is "") who is edited for choosing a name. When I press ENTER, the filename is send through a socket to the server. The problem comes when I press ESC because the filename remains "" and is not send to the server. I tried to overwrite the keyPressEvent but is not working. Any ideas? I need to catch the ESC press event when I'm editing the item.

推荐答案

你可以继承QTreeWidget，然后像这样重新实现QTreeView::keyPressEvent:

void MyTreeWidget::keyPressEvent(QKeyEvent *event)
{
    if (event->key() == Qt::Key_Escape)
    {
        // handle the key press, perhaps giving the item text a default value
        event->accept();
    }
    else
    {
        QTreeView::keyPressEvent(event); // call the default implementation
    }
}