您可以QStyledItemDelegate
在发生更改时对数据进行子类化和提交,然后使用QAbstractItemView::setItemDelegate
.
class MyDelegate : public QStyledItemDelegate {
QSignalMapper *mapper;
public:
MyDelegate(QObject*parent = 0)
: QStyledItemDelegate(parent)
, mapper(new QSignalMapper(this))
{
connect(mapper, SIGNAL(mapped(QWidget*)), SIGNAL(commitData(QWidget*)));
}
QWidget * createEditor(QWidget * parent, const QStyleOptionViewItem & option,
const QModelIndex & index ) const
{
QWidget *editor = QStyledItemDelegate::createEditor(parent, option, index);
if(qobject_cast<QLineEdit*>(editor)) {
connect(editor, SIGNAL(textChanged(QString)), mapper, SLOT(map()));
mapper->setMapping(editor, editor);
}
return editor;
}
};