enthought/traitsui — pull request #42 by pankajp (2011-11-28 11:48:11+00:00)
Title: TreeEditor: added 'activated' trait to notify a node being activated.

The 'activated' trait Event is assigned a node when a node is
double-clicked or enter key is pressed on a node.
Previously, the dclicked was used for such behaviour, which was also
fired on Enter key press in wx backend. This is now fixed and dclick
only fires on mouse double-click on a node in both qt and wx.