我遇到了同样的问题,并使用评论中提供的 Tim Meyer 信息解决了它。
选项卡顺序不是分层的 - 在不接受焦点的父小部件上调用 setTabOrder 不会导致焦点传递给子小部件。您将需要从小部件中获取适当的子级并设置它们的顺序
在我的例子中,动态构造的 QTreeWidget 包含可编辑的小部件,我需要重置 setTabOrder 以解决无序创建的小部件。
以下代码是(大部分)实现
// Perform a depth-first gather of the child widgets of this item
void gatherTabWidgets( QObject* item, QWidgetList& tabWidgets )
{
if (item->isWidgetType())
{
QWidget* itemWidget = static_cast<QWidget*>(item);
if (itemWidget->focusPolicy() & Qt::TabFocus)
tabWidgets.push_back( itemWidget );
}
const QObjectList& children = item->children();
for (QObjectList::const_iterator itr = children.begin(); itr != children.end(); itr++)
{
gatherTabWidgets( const_cast<QObject*>(*itr), tabWidgets );
}
}
// Perform a depth-first gather of the child items widgets;
void gatherTabWidgets( QTreeWidgetItem* item, QWidgetList& tabWidgets )
{
QWidget* itemWidget = fetchWidgetForItem( item );
gatherTabWidgets( itemWidget, tabWidgets );
for (int i = 0; i < item->childCount(); i++)
{
gatherTabWidgets( item->child( i ), tabWidgets );
}
}
void VETreeWidget::sortTree()
{
// Ensure ordering is maintained.
sortItems( 0, Qt::AscendingOrder );
// Once the items have been re-ordered, re-create the tab ordering
QTreeWidgetItem* baseItem = topLevelItem( 0 );
QWidgetList tabWidgets;
gatherTabWidgets( baseItem, tabWidgets );
if (!tabWidgets.empty())
{
QWidget* lastWidget = tabWidgets.first();
// Connect this treeview to the first widget. This ensures
// if the treeview is tabbed-to, it will tab to the correct sub-widget
setTabOrder( this, lastWidget );
for (QWidgetList::iterator itr = tabWidgets.begin() + 1; itr != tabWidgets.end(); itr++)
{
setTabOrder( lastWidget, *itr );
lastWidget = *itr;
}
}
}