livetrax/libs/surfaces/osc/osc_controllable.cc

/*
    Copyright (C) 2009 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.

*/

#include <cstdio> /* for sprintf, sigh */
#include <climits>
#include <pbd/error.h>
#include <pbd/xml++.h>

#include <ardour/route.h>

#include "osc_controllable.h"

using namespace sigc;
using namespace PBD;
using namespace ARDOUR;

OSCControllable::OSCControllable (lo_address a, const std::string& p, boost::shared_ptr<Controllable> c)
	: controllable (c)
	, addr (a)
	, path (p)
{
	c->Changed.connect (mem_fun (*this, &OSCControllable::send_change));
}

OSCControllable::~OSCControllable ()
{
	lo_address_free (addr);
}

XMLNode&
OSCControllable::get_state ()
{
	XMLNode& root (controllable->get_state());
	return root;
}

int
OSCControllable::set_state (const XMLNode& /*node*/)
{
	return 0;
}

void
OSCControllable::send_change ()
{
	lo_message msg = lo_message_new ();
	
	lo_message_add_float (msg, (float) controllable->get_value());

	/* XXX thread issues */

	lo_send_message (addr, path.c_str(), msg);
	lo_message_free (msg);
}

/*------------------------------------------------------------*/	

OSCRouteControllable::OSCRouteControllable (lo_address a, const std::string& p, 
					    boost::shared_ptr<Controllable> c, boost::shared_ptr<Route> r)
	: OSCControllable (a, p, c)
	, _route (r)
{
}

OSCRouteControllable::~OSCRouteControllable ()
{
}

void
OSCRouteControllable::send_change ()
{
	lo_message msg = lo_message_new ();

	lo_message_add_int32 (msg, _route->remote_control_id());
	lo_message_add_float (msg, (float) controllable->get_value());

	/* XXX thread issues */

	std::cerr << "ORC: send " << path << " = " << controllable->get_value() << std::endl;
	lo_send_message (addr, path.c_str(), msg);
	lo_message_free (msg);
}