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/*
Copyright (C) 1998-2007 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: volume_controller.cc,v 1.4 2000/05/03 15:54:21 pbd Exp $
*/
#include <string.h>
#include <limits.h>
#include "pbd/controllable.h"
#include "gtkmm2ext/gui_thread.h"
#include "ardour/utils.h"
#include "volume_controller.h"
using namespace Gtk;
VolumeController::VolumeController (Glib::RefPtr<Gdk::Pixbuf> p,
Gtk::Adjustment *adj,
bool with_numeric,
int subw, int subh)
: MotionFeedback (p, MotionFeedback::Rotary, "", adj, with_numeric, subw, subh)
{
get_adjustment()->signal_value_changed().connect (mem_fun (*this,&VolumeController::adjustment_value_changed));
}
void
VolumeController::set_controllable (boost::shared_ptr<PBD::Controllable> c)
{
MotionFeedback::set_controllable (c);
controllable_connection.disconnect ();
if (c) {
c->Changed.connect (controllable_connection, MISSING_INVALIDATOR, boost::bind (&VolumeController::controllable_value_changed, this), gui_context());
}
controllable_value_changed ();
}
void
VolumeController::controllable_value_changed ()
{
boost::shared_ptr<PBD::Controllable> c = controllable();
if (c) {
get_adjustment()->set_value (gain_to_slider_position (c->get_value ()));
}
}
void
VolumeController::adjustment_value_changed ()
{
boost::shared_ptr<PBD::Controllable> c = controllable();
if (c) {
c->set_value (slider_position_to_gain (get_adjustment()->get_value()));
}
}
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