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connection.h

/*
    Copyright (C) 2002 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: connection.h,v 1.5 2004/11/29 03:04:44 pauld Exp $
*/

#ifndef __ardour_connection_h__
#define __ardour_connection_h__

#include <vector>
#include <string>
#include <sigc++/signal_system.h>
#include <pbd/lockmonitor.h>
#include <ardour/stateful.h>

using std::vector;
using std::string;

namespace ARDOUR {

class Connection : public Stateful, public SigC::Object {
  public:
      Connection (string name, bool sdep = false) : _name (name), _sysdep(sdep) {}
      ~Connection() {}

      typedef vector<string> PortList;

      void set_name (string name, void *src);
      string name() const { return _name; }
      
      bool system_dependent() const { return _sysdep; }

      uint32_t nports () const { return _ports.size(); }
      const PortList& port_connections (int port) const;

      void add_connection (int port, string portname);
      void remove_connection (int port, string portname);
      
      void add_port ();
      void remove_port (int port);
      void clear ();

      SigC::Signal1<void,void*> NameChanged;
      SigC::Signal0<void>       ConfigurationChanged;
      SigC::Signal1<void,int>   ConnectionsChanged;

      bool operator==(const Connection& other) const;

      XMLNode& get_state (void);
      int set_state (const XMLNode&);

  protected:
      Connection (const XMLNode&);

  private:
      mutable PBD::Lock port_lock;
      vector<PortList> _ports;
      string _name;
      bool   _sysdep;

      int set_connections (const string& str);
      int parse_io_string (const string& str, vector<string>& ports);
};

class InputConnection : public Connection {
  public:
      InputConnection (string name, bool sdep = false) : Connection (name, sdep) {}
      InputConnection (const XMLNode&);
};

class OutputConnection : public Connection {
  public:
      OutputConnection (string name, bool sdep = false) : Connection (name, sdep) {}
      OutputConnection (const XMLNode&);
};

}

#endif /* __ardour_connection_h__ */


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