Re: double click event in a tree view

[Olexiy Avramchenko <olexiy irtech cn ua>]

paolo borelli wrote:

> On Mon, 2003-04-28 at 19:02, paolo borelli wrote:
>
> > Hi,
> >         I'm implementing a dialog which contains a list of symbols implemented
> > with GtkTreeView/GtkListStore.
> >
> > I've implemented the dialog as a subclass of GtkDialog and the
> > application runs it with gtk_dialog_run.
> >
> > Now I want to intercepet if the user double-click on an elemente of the
> > list so that I can return the proper GTK_RESPONSE.
> >
> > Looking at the docs it's not clear to me which event should I connect
> > to. Can someone give me a hint?
>
>
> sorry to reply to myself, but re-reading my mail I see I've not been
> clear;
>
> I've connected my tree view to the button-press-event with:
>
> /* when a symbol is double-clicked we emit a OK response */
> g_signal_connect (G_OBJECT (GTK_WIDGET (dialog->list)), "button-press-event",
>                   G_CALLBACK (gkd_on_double_click), dialog);
>
>
> where the callback is:
>
>
> static void
> gkd_on_double_click (GtkWidget *widget,
>                      GdkEventButton *bevent,
>                      gpointer *dialog)
> {
>         if (bevent && (bevent->type == GDK_2BUTTON_PRESS))
>                 gtk_dialog_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
> }
>
>
> The problem is that the above code gets all button-press-events and the
> user cannot select another row of the list with the mouse...
>
> ciao
>         paolo
Hello,
"button-press-event" expects callback that returns gboolean value 
(FALSE: continue signal emission, TRUE: stop it). Your callback has 
'void' return type - so you'll get random result (in most cases: TRUE).

NOTE: *all signals* with names like "*event" expects *gboolean* return 
value from callback.

Olexiy