Re: Single and double clicks on a row in treeview (gtkmm 2)

[Phil Wolff <adiabat centurylink net>]

As you already know, calling TreeView::set_activate_on_single_click( 
false ) and connecting to TreeView::signal_row_activated() allows you to 
intercept a double click. To intercept a single click, get the 
TreeSelection object associated with the TreeView using 
TreeView::get_selection() and connect to 
TreeSelection::signal_changed(). Be aware that a single click on a row 
that's already selected will not emit signal_changed(). Also, there's a 
warning somewhere in the documentation that says you may occasionally 
receive signal_changed() when in fact there has NOT been a change in the 
selection.

If that doesn't do what you need, you can also intercept and handle 
clicks at a much more basic level with 
TreeView::signal_button_press_event(). There's an example at 
https://git.gnome.org/browse/gtkmm-documentation/tree/examples/book/treeview/popup 
that will get you started in that direction.

On 2016/07/05 03:44, Kamalpreet Grewal wrote:
> Hi
>
> I am working on a software that has been developed using gtkmm 2. I
> have been working on a treeview. I wish to implement two different
> actions on single and double click on rows of this treeview.
>
> The property "activate-on-single-click" is available in gtkmm 3. Else
> this property could have been used for both type of clicks.
> signal_row_activated() is emitted when the user double clicks a
> treeview row.
>
> How can I achieve both type of clicks for the treeview?