Re: label with context menu (populate-popup)

["muppet" <scott asofyet org>]

Peter Daum wrote:
> Is there an easy way to get a context menu on a label?
> According to the documentation, it should support a
> 'populate-popup' signal, so it looks like this should be
> painless. If I try the following (which works fine on other
> occasions):
[snip]
> I get no warning, only the signal is never triggered.
> The documentation for GtkLabel doesn't say when this
> signal occurs, I just assumed it would be triggered
> whith the right mouse button...

Labels are "no-window" widgets.  You must have a window to receive an event. 
Labels have no window and therefore receive no events.

The way to get a Label to have a window is to make it selectable.  In fact,
it's when it is selectable that the popup menu is useful, because you can
select clipboard operations.


To wit:

#!/usr/bin/perl -w
use strict;
use Gtk2 -init;

my $window = Gtk2::Window->new;
my $label = Gtk2::Label->new ("Hi, i am a label");

# This is what will make it possible to get the context menu on the label
$label->set_selectable (1);
$label->signal_connect (populate_popup => sub {
	my (undef, $menu) = @_;
	my $item = Gtk2::MenuItem->new ('Whee');
 	$menu->append ($item);
 	$item->show;
});

$window->add ($label);
$window->signal_connect (destroy => sub { Gtk2->main_quit });
$window->show_all;
Gtk2->main;



-- 
muppet <scott at asofyet dot org>