I want to edit listview's item using contextmenu. How to?

[melody:p]

I can edit listview's item when I doubleclicked item.
I using code

setEditTriggers(QAbstractItemView::DoubleClicked | QAbstractItemView::SelectedClicked);

setEditTriggers(QAbstractItemView::DoubleClicked | QAbstractItemView::SelectedClicked);

To copy to clipboard, switch view to plain text mode 

AND I want to editing item by contextmenu.

I want to :
when I select rename action,
item's state change editable, like this:
www.png -> ddd.png

How to I want DO?
It's so hard...

PLEASE HELP ME!