On 9/22/05, Christian Neumair <[EMAIL PROTECTED]> wrote:
> Am Dienstag, den 20.09.2005, 20:05 +0200 schrieb Nicolas Cormier:
> > I have a Treeview and I want to active the EnterNotifyEvent when a the
> > user's cursor is on a row.
> >
> > I active the EnterNotifyEvent for the treeview but it works only for
> > the entire of the widget.
>
> See [1] for a patch against Nautilus which does what you want.
>
> The interesting thing you have to grasp is
>
> a) you only have motion notify events inside a tree view widget
> b) you'll have to check what path is active on each motion event
> c) the algorithm you can use to detect changes to the hover path, inside
> the motion notification handler, where the GdkEventMotion is event, is:
>
> GtkTreePath *hover_path;
> GtkTreePath *last_hover_path;
>
> /* last_hover_path = foo->stored_path; fetch last hover path */
> gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget),
> event->x, event->y,
> &hover_path,
> NULL, NULL, NULL);
> /* foo->stored_path = hover_path; write back new hover path */
>
> if (!(last_hover_path == NULL && hover_path == NULL) &&
> (!(last_hover_path != NULL && hover_path != NULL) ||
> gtk_tree_path_compare (last_hover_path, hover_path) != NULL)) {
> /* do whatever you want with the new hover path */
> }
>
> [1] http://bugzilla.gnome.org/attachment.cgi?id=49082&action=view
>
> --
> Christian Neumair <[EMAIL PROTECTED]>
>
>
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>
>
Thanks a lot for your answer.
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