QTreeView 不可编辑

this->setEditTriggers(QAbstractItemView::NoEditTriggers);

参看：

enum QAbstractItemView::EditTrigger
flags QAbstractItemView::EditTriggers

This enum describes actions which will initiate item editing.

Constant Value Description

QAbstractItemView::NoEditTriggers	0	No editing possible.
QAbstractItemView::CurrentChanged	1	Editing start whenever current item changes.
QAbstractItemView::DoubleClicked	2	Editing starts when an item is double clicked.
QAbstractItemView::SelectedClicked	4	Editing starts when clicking on an already selected item.
QAbstractItemView::EditKeyPressed	8	Editing starts when the platform edit key has been pressed over an item.
QAbstractItemView::AnyKeyPressed	16	Editing starts when any key is pressed over an item.
QAbstractItemView::AllEditTriggers	31	Editing starts for all above actions.

链接：QTreeWidgetItem 点击可编辑修改http://blog.csdn.net/ymc0329/article/details/7284524