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"
31 #include "evoral/Parameter.hpp"
33 #include "ardour/libardour_visibility.h"
41 class AutomationControl;
43 class LIBARDOUR_API Slavable
47 virtual ~Slavable() {}
49 XMLNode& get_state () const;
50 int set_state (XMLNode const&, int);
52 void assign (boost::shared_ptr<VCA>);
53 void unassign (boost::shared_ptr<VCA>);
55 virtual boost::shared_ptr<AutomationControl> automation_control (const Evoral::Parameter& id) = 0;
57 static std::string xml_node_name;
59 /* signal sent VCAManager once assignment is possible */
60 static PBD::Signal1<void,VCAManager*> Assign;
63 virtual int assign_controls (boost::shared_ptr<VCA>);
64 virtual int unassign_controls (boost::shared_ptr<VCA>);
67 mutable Glib::Threads::RWLock master_lock;
68 std::set<uint32_t> _masters;
69 PBD::ScopedConnection assign_connection;
71 int do_assign (VCAManager* s);
76 #endif /* __ardour_slavable_h__ */