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livetrax/libs/surfaces/mackie/route_signal.h

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/*
Copyright (C) 2006,2007 John Anderson
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.
*/
#ifndef route_signal_h
#define route_signal_h
#include <sigc++/sigc++.h>
#include <boost/shared_ptr.hpp>
#include <vector>
#include "midi_byte_array.h"
class MackieControlProtocol;
namespace ARDOUR {
class Route;
}
namespace Mackie
{
class Strip;
class SurfacePort;
/**
This class is intended to easily create and destroy the set of
connections from a route to a control surface strip. Instantiating
it will connect the signals, and destructing it will disconnect
the signals.
*/
class RouteSignal
{
public:
RouteSignal(boost::shared_ptr<ARDOUR::Route> route, MackieControlProtocol & mcp, Strip & strip, SurfacePort & port )
: _route( route ), _mcp( mcp ), _strip( strip ), _port( port ), _last_gain_written(0.0)
{
connect();
}
~RouteSignal()
{
disconnect();
}
void connect();
void disconnect();
// call all signal handlers manually
void notify_all();
boost::shared_ptr<const ARDOUR::Route> route() const { return _route; }
Strip & strip() { return _strip; }
SurfacePort & port() { return _port; }
float last_gain_written() const { return _last_gain_written; }
void last_gain_written( float other ) { _last_gain_written = other; }
const MidiByteArray & last_pan_written() const { return _last_pan_written; }
void last_pan_written( const MidiByteArray & other ) { _last_pan_written = other; }
private:
boost::shared_ptr<ARDOUR::Route> _route;
MackieControlProtocol & _mcp;
Strip & _strip;
SurfacePort & _port;
typedef std::vector<sigc::connection> Connections;
Connections _connections;
// Last written values for the gain and pan, to avoid overloading
// the midi connection to the surface
float _last_gain_written;
MidiByteArray _last_pan_written;
};
}
#endif