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/*
Copyright (C) 2004 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id$
*/
#include <string>
#include <iostream>
#include "pbd/controllable.h"
#include "gtkmm2ext/gtk_ui.h"
#include "gtkmm2ext/bindable_button.h"
#include "gtkmm2ext/gui_thread.h"
#include "pbd/i18n.h"
using namespace Gtkmm2ext;
using namespace std;
using namespace PBD;
void
BindableToggleButton::set_controllable (boost::shared_ptr<PBD::Controllable> c)
{
watch_connection.disconnect ();
binding_proxy.set_controllable (c);
}
void
BindableToggleButton::watch ()
{
boost::shared_ptr<Controllable> c (binding_proxy.get_controllable ());
if (!c) {
warning << _("button cannot watch state of non-existing Controllable\n") << endl;
return;
}
c->Changed.connect (watch_connection, invalidator(*this), boost::bind (&BindableToggleButton::controllable_changed, this), gui_context());
}
void
BindableToggleButton::controllable_changed ()
{
float val = binding_proxy.get_controllable()->get_value();
set_active (fabs (val) >= 0.5f);
}
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