unset default row in a treeview (treesort)
Hi to all,
I try to set the active row in a treeview(treesort) to another row than 0. This
works but the row 0 is always highlighted (light).
Here's my code:
my $row_path = $theme_center_list_real_hash{$row_name}; # e.g "4:2"
my $tree_model = $tree_view_object->get_model();
my $treeiter = $tree_model->get_iter_from_string($row_path);
my $treepath = $tree_model->get_path ($treeiter);
my $treeselection = $tree_view_object->get_selection();
$treeselection->select_iter($treeiter);
If I printout the path list with
@paths = $treeselection->get_selected_rows;
only the selected row I want is listed. So I guess the light higlighted row is
an old display state.
How can I clear this "state"?
After clicking to another row it will be cleared but at the beginning when the
program starts it looks unpleasantly.
Thanks in advance,
Thomas
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Re: unset default row in a treeview (treesort)
Thomas Funk wrote:
> Hi to all,
> I try to set the active row in a treeview(treesort) to another row than 0.
> This works but the row 0 is always highlighted (light).
> Here's my code:
> my $row_path = $theme_center_list_real_hash{$row_name}; # e.g "4:2"
> my $tree_model = $tree_view_object->get_model();
> my $treeiter = $tree_model->get_iter_from_string($row_path);
> my $treepath = $tree_model->get_path ($treeiter);
> my $treeselection = $tree_view_object->get_selection();
> $treeselection->select_iter($treeiter);
>
> If I printout the path list with
> @paths = $treeselection->get_selected_rows;
> only the selected row I want is listed. So I guess the light higlighted row
> is an old display state.
>
> How can I clear this "state"?
> After clicking to another row it will be cleared but at the beginning when
> the program starts it looks unpleasantly.
It sounds like you perhaps aren't allowing the program to process
events? After you call select_iter how is control passed back to the
event loop?
Cheers, Dave
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Re: unset default row in a treeview (treesort)
"Thomas Funk" writes: > > So I guess the light higlighted row is an old display state. It's not just the cursor thingie is it? Maybe set_cursor() and scroll_to_cell() to start on the initial choice? ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: unset default row in a treeview (treesort)
"Kevin Ryde" wrote: >It's not just the cursor thingie is it? Maybe set_cursor() and >scroll_to_cell() to start on the initial choice? I tried $treeselection->select_iter($treeiter); $tree_view_object->set_cursor ($treepath, undef, FALSE); but it ends in an "endless" loop with a seg fault :-( In which module can I find scroll_to_cell() ? --Thomas ___ GRATIS! Movie-FLAT mit über 300 Videos. Jetzt freischalten unter http://movieflat.web.de ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: unset default row in a treeview (treesort)
"Dave Howorth" wrote:
>It sounds like you perhaps aren't allowing the program to process
>events? After you call select_iter how is control passed back to the
>event loop?
I don't know how to do it ... I red many tuts but I don't understand how to
implement this.
As the program starts the event "cursor-changed" occurs, so I implemented this
event in my sub
sub theme_center_options_treeview()
{
:
# create a treeview, specify $tree_store as its model
my $tree_view = Gtk2::TreeView->new($tree_store);
$object{'theme_center_options_treeview'} = $tree_view;
$tree_view->signal_connect("cursor-changed" =>
\&on_theme_center_options_treeview_cursor_changed);
# create a Gtk2::TreeViewColumn to add to $tree_view
:
}
In the callback sub I check if the event occurs at start time or later when a
row will be clicked:
sub on_theme_center_options_treeview_cursor_changed()
{
my $treeview_object = $object{'theme_center_options_treeview'};
my $selected_row;
if ($start_init == FALSE)
{
my $treeselection = $treeview_object->get_selection();
$selected_row = get_treeview_row(\$treeselection);
}
else
{
my $treeselection = &set_treeview_row($treeview_object, "Theme Manager");
$start_init = FALSE;
}
}
By checking the Gtk2::tree*** modules I found in Gtk2::TreeModel
$tree_model->row_changed ($path, $iter)
so I tried
$treeselection->select_iter($treeiter);
$tree_model->row_changed ($treepath, $treeiter);
but it doesn't help :-(
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Re: unset default row in a treeview (treesort)
"Thomas Funk" writes: > > but it ends in an "endless" loop with a seg fault :-( You'll have to stick it under the debugger, or post a complete program ... > In which module can I find scroll_to_cell() ? Another Gtk2::TreeView method. -- Nobody knows nothing. -- all you need to understand about investment to succeed in the stockbroking business ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: unset default row in a treeview (treesort)
"Thomas Funk" writes: > > my $treeselection = &set_treeview_row($treeview_object, "Theme Manager"); > $start_init = FALSE; >} Oh, a set_cursor() under a "cursor-changed" might immediately recurse to run "cursor-changed again. Perhaps clear the $start_init before doing the set_cursor(). Assuming a set_cursor() is in fact what you want! Are you sure you don't want to make the initial selection and/or cursor position when first setting in a model? Or when the model is first populated? ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Re: unset default row in a treeview (treesort)
"Kevin Ryde" wrote:
>Oh, a set_cursor() under a "cursor-changed" might immediately recurse to
>run "cursor-changed again. Perhaps clear the $start_init before doing
>the set_cursor(). Assuming a set_cursor() is in fact what you want!
>
>Are you sure you don't want to make the initial selection and/or cursor
>position when first setting in a model? Or when the model is first
>populated?
Aaah great! Yes you're right :D
with
sub on_theme_center_options_treeview_cursor_changed()
{
:
if ($start_init == FALSE)
{
:
}
else
{
$start_init = FALSE;
# set 10th row in ThemeCenter list -> Theme manager
&set_treeview_row($treeview_object, "Theme Manager");
$selected_row = $theme_center_list_hash{"Theme Manager"};
}
and
sub set_treeview_row($$)
{
:
my $treeiter = $tree_model->get_iter_from_string($row_path);
&dprint(" treeiter: $treeiter\n");
my $treepath = $tree_model->get_path ($treeiter);
&dprint(" treepath: $treepath\n");
$tree_view_object->set_cursor ($treepath, undef, FALSE);
}
it works like a charme!!!
Thank you very much!!
--Thomas
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