2 Copyright (C) 2016 Paul Davis
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.
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.
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.
20 #ifndef __ardour_slavable_h__
21 #define __ardour_slavable_h__
27 #include <boost/shared_ptr.hpp>
29 #include <pbd/signals.h>
42 virtual ~Slavable() {}
44 XMLNode& get_state () const;
45 int set_state (XMLNode const&, int);
47 void assign (boost::shared_ptr<VCA>);
48 void unassign (boost::shared_ptr<VCA>);
50 static std::string xml_node_name;
52 /* signal sent VCAManager once assignment is possible */
53 static PBD::Signal1<void,VCAManager*> Assign;
56 virtual int assign_controls (boost::shared_ptr<VCA>) = 0;
57 virtual int unassign_controls (boost::shared_ptr<VCA>) = 0;
60 mutable Glib::Threads::RWLock master_lock;
61 std::set<uint32_t> _masters;
62 PBD::ScopedConnection assign_connection;
64 int do_assign (VCAManager* s);
69 #endif /* __ardour_slavable_h__ */