Re: Unable deselect a row in a GtkTreeView with the mouse and other questions

[Paul Davis <paul linuxaudiosystems com>]

On Thu, 2006-03-23 at 23:18 +0100, Zoltan Boszormenyi wrote:
> Hi,
> 
> I wrote an application in GTK2 but it gives strange me behaviour.
> First, I cannot deselect a row in a GtkTreeView with the mouse,
> despite the GtkListStore behind it is GTK_SELECTION_SINGLE.
>  From the documentation:
> 
> GTK_SELECTION_SINGLE    Zero or one element may be selected.
> GTK_SELECTION_BROWSE    Exactly one element is selected. In some 
> circumstances,
>                             such as initially or during a search 
> operation, it's possible
>                              for no element to be selected with 
> GTK_SELECTION_BROWSE.
>                             What is really enforced is that the user 
> can't deselect a currently
>                              selected element except by selecting 
> another element.
> 
> So, I guess GTK_SELECTION_SINGLE provides a way for the user to deselect
> the already selected row, but how? In GTK-1.2.x, a mouse click deselects the
> already selected row.

read the GNOME HIG.

ctrl-click toggles the selection state of an item.