libs/pbd/receiver.cc

   1 /*
   2     Copyright (C) 1998-99 Paul Barton-Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18     $Id$
  19 */
  20
  21 #include <vector>
  22
  23 #include "pbd/receiver.h"
  24 #include "pbd/transmitter.h"
  25
  26 using namespace std;
  27 using namespace sigc;
  28
  29 Receiver::Receiver () {}
  30
  31 Receiver::~Receiver ()
  32
  33 {
  34         hangup ();
  35 }
  36
  37 void
  38 Receiver::hangup ()
  39 {
  40         vector<sigc::connection *>::iterator i;
  41
  42         for (i = connections.begin(); i != connections.end (); i++) {
  43                 (*i)->disconnect ();
  44                 delete *i;
  45         }
  46
  47         connections.erase (connections.begin(), connections.end());
  48 }
  49
  50 void
  51 Receiver::listen_to (Transmitter &transmitter)
  52
  53 {
  54         sigc::connection *c = new sigc::connection;
  55
  56         (*c) = transmitter.sender().connect(mem_fun(*this, &Receiver::receive));
  57
  58         connections.push_back (c);
  59 }