if (!value.isValid())
return QStyledItemDelegate::editorEvent(event, model, option, index);
+#if QT_VERSION < 0x050000
QStyleOptionViewItemV4 viewOpt(option);
+#else
+ QStyleOptionViewItem viewOpt(option);
+#endif
initStyleOption(&viewOpt, index);
QRect checkRect = viewOpt.widget->style()->subElementRect(QStyle::SE_ItemViewItemCheckIndicator, &viewOpt, viewOpt.widget);