2 * Copyright (C) 2007-2015 David Robillard <d@drobilla.net>
3 * Copyright (C) 2008-2017 Paul Davis <paul@linuxaudiosystems.com>
4 * Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
5 * Copyright (C) 2015-2019 Robin Gareus <robin@gareus.org>
6 * Copyright (C) 2015 Nick Mainsbridge <mainsbridge@gmail.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 #ifndef __ardour_automation_control_h__
24 #define __ardour_automation_control_h__
28 #include <glibmm/threads.h>
30 #include <boost/shared_ptr.hpp>
32 #include "pbd/controllable.h"
34 #include "evoral/types.hpp"
35 #include "evoral/Control.hpp"
37 #include "ardour/automation_list.h"
38 #include "ardour/control_group_member.h"
39 #include "ardour/parameter_descriptor.h"
40 #include "ardour/session_handle.h"
42 #include "ardour/libardour_visibility.h"
50 /** A PBD::Controllable with associated automation data (AutomationList)
52 class LIBARDOUR_API AutomationControl
53 : public PBD::Controllable
54 , public Evoral::Control
55 , public ControlGroupMember
56 , public SessionHandleRef
59 AutomationControl(ARDOUR::Session&,
60 const Evoral::Parameter& parameter,
61 const ParameterDescriptor& desc,
62 boost::shared_ptr<ARDOUR::AutomationList> l=boost::shared_ptr<ARDOUR::AutomationList>(),
63 const std::string& name="",
64 PBD::Controllable::Flag flags=PBD::Controllable::Flag (0)
67 virtual ~AutomationControl ();
69 boost::shared_ptr<AutomationList> alist() const {
70 return boost::dynamic_pointer_cast<AutomationList>(_list);
73 void set_list (boost::shared_ptr<Evoral::ControlList>);
75 inline bool automation_playback() const {
76 return alist() ? alist()->automation_playback() : false;
79 inline bool automation_write() const {
80 return alist() ? alist()->automation_write() : false;
83 inline AutoState automation_state() const {
84 return alist() ? alist()->automation_state() : Off;
87 void set_automation_state(AutoState as);
88 void start_touch(double when);
89 void stop_touch(double when);
91 /* inherited from PBD::Controllable. */
92 virtual double get_value () const;
93 virtual double get_save_value () const;
95 /* inherited from PBD::Controllable.
96 * Derived classes MUST call ::writable() to verify
97 * that writing to the parameter is legal at that time.
99 void set_value (double value, PBD::Controllable::GroupControlDisposition group_override);
100 /* automation related value setting */
101 virtual bool writable () const;
102 /* Call to ::set_value() with no test for writable() because
103 * this is only used by automation playback.
105 void set_value_unchecked (double val) {
106 actually_set_value (val, PBD::Controllable::NoGroup);
109 virtual void automation_run (samplepos_t start, pframes_t nframes);
111 double lower() const { return _desc.lower; }
112 double upper() const { return _desc.upper; }
113 double normal() const { return _desc.normal; }
114 bool toggled() const { return _desc.toggled; }
116 double internal_to_interface (double i) const;
117 double interface_to_internal (double i) const;
119 virtual std::string get_user_string() const;
121 const ParameterDescriptor& desc() const { return _desc; }
123 const ARDOUR::Session& session() const { return _session; }
124 void commit_transaction (bool did_write);
126 ControlList grouped_controls () const;
129 boost::shared_ptr<ControlGroup> _group;
131 const ParameterDescriptor _desc;
133 bool check_rt (double val, Controllable::GroupControlDisposition gcd);
135 /* derived classes may reimplement this, but should either
136 call this explicitly inside their version OR make sure that the
137 Controllable::Changed signal is emitted when necessary.
140 virtual void actually_set_value (double value, PBD::Controllable::GroupControlDisposition);
142 /* Session needs to call this method before it queues up the real
143 change for execution in a realtime context. C++ access control sucks.
145 friend class Session;
146 /* this is what the session invokes */
147 void pre_realtime_queue_stuff (double new_value, PBD::Controllable::GroupControlDisposition);
148 /* this will be invoked in turn on behalf of the group or the control by itself */
149 virtual void do_pre_realtime_queue_stuff (double new_value) {}
151 void session_going_away ();
154 /* I am unclear on why we have to make ControlGroup a friend in order
155 to get access to the ::set_group() method when it is already
156 declared to be a friend in ControlGroupMember. Oh well.
158 friend class ControlGroup;
159 void set_group (boost::shared_ptr<ControlGroup>);
160 PBD::ScopedConnection _state_changed_connection;
165 } // namespace ARDOUR
167 #endif /* __ardour_automation_control_h__ */