2 * Copyright (C) 2016-2017 Paul Davis <paul@linuxaudiosystems.com>
3 * Copyright (C) 2017 Robin Gareus <robin@gareus.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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.h"
33 #include "ardour/types.h"
34 #include "ardour/libardour_visibility.h"
42 class AutomationControl;
43 class SlavableAutomationControl;
45 class LIBARDOUR_API Slavable
49 virtual ~Slavable() {}
51 XMLNode& get_state () const;
52 int set_state (XMLNode const&, int);
54 virtual void assign (boost::shared_ptr<VCA>);
55 void unassign (boost::shared_ptr<VCA>);
57 PBD::Signal2<void,boost::shared_ptr<VCA>,bool> AssignmentChange;
59 virtual boost::shared_ptr<AutomationControl> automation_control (const Evoral::Parameter&) = 0;
61 static std::string xml_node_name;
63 /* signal sent VCAManager once assignment is possible */
64 static PBD::Signal1<void,VCAManager*> Assign;
66 std::vector<boost::shared_ptr<VCA> > masters (VCAManager*) const;
68 /** recursively test for master assignment to given VCA */
69 bool assigned_to (VCAManager*, boost::shared_ptr<VCA>) const;
72 virtual SlavableControlList slavables () const = 0;
75 bool assign_controls (boost::shared_ptr<VCA>);
76 void unassign_controls (boost::shared_ptr<VCA>);
78 bool assign_control (boost::shared_ptr<VCA>, boost::shared_ptr<SlavableAutomationControl>);
79 void unassign_control (boost::shared_ptr<VCA>, boost::shared_ptr<SlavableAutomationControl>);
81 mutable Glib::Threads::RWLock master_lock;
82 std::set<uint32_t> _masters;
83 PBD::ScopedConnection assign_connection;
84 PBD::ScopedConnectionList unassign_connections;
86 int do_assign (VCAManager* s);
87 void weak_unassign (boost::weak_ptr<VCA>);
92 #endif /* __ardour_slavable_h__ */