2 Copyright (C) 2007 Paul Davis
3 Author: David Robillard
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
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #include "ardour/automation_control.h"
24 #include "ardour/event_type_map.h"
25 #include "ardour/session.h"
28 using namespace ARDOUR;
31 AutomationControl::AutomationControl(
32 ARDOUR::Session& session,
33 const Evoral::Parameter& parameter,
34 boost::shared_ptr<ARDOUR::AutomationList> list,
36 : Controllable (name.empty() ? EventTypeMap::instance().to_symbol(parameter) : name)
37 , Evoral::Control(parameter, list)
42 /** Get the current effective `user' value based on automation state */
44 AutomationControl::get_value() const
46 bool from_list = _list && ((AutomationList*)_list.get())->automation_playback();
47 return Control::get_double (from_list, _session.transport_frame());
50 /** Set the value and do the right thing based on automation state
51 * (e.g. record if necessary, etc.)
52 * @param value `user' value
55 AutomationControl::set_value(double value)
57 bool to_list = _list && _session.transport_stopped()
58 && ((AutomationList*)_list.get())->automation_write();
60 if (to_list && parameter().toggled()) {
62 // store the previous value just before this so any
63 // interpolation works right
65 _list->add (get_double(), _session.transport_frame()-1);
68 Control::set_double (value, to_list, _session.transport_frame());
70 Changed(); /* EMIT SIGNAL */
75 AutomationControl::set_list(boost::shared_ptr<Evoral::ControlList> list)
77 Control::set_list(list);
78 Changed(); /* EMIT SIGNAL */