2 Copyright (C) 2000-2007 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_automatable_h__
21 #define __ardour_automatable_h__
27 #include <boost/shared_ptr.hpp>
29 #include "pbd/signals.h"
31 #include "evoral/ControlSet.hpp"
33 #include "ardour/libardour_visibility.h"
34 #include "ardour/slavable.h"
35 #include "ardour/types.h"
42 class AutomationControl;
44 /* The inherited ControlSet is virtual because AutomatableSequence inherits
45 * from this AND EvoralSequence, which is also a ControlSet
47 class LIBARDOUR_API Automatable : virtual public Evoral::ControlSet, public Slavable
50 Automatable(Session&);
51 Automatable (const Automatable& other);
53 virtual ~Automatable();
55 boost::shared_ptr<Evoral::Control> control_factory(const Evoral::Parameter& id);
57 boost::shared_ptr<AutomationControl> automation_control (PBD::ID const & id) const;
58 boost::shared_ptr<AutomationControl> automation_control (const Evoral::Parameter& id) {
59 return automation_control (id, false);
62 boost::shared_ptr<AutomationControl> automation_control (const Evoral::Parameter& id, bool create_if_missing);
63 boost::shared_ptr<const AutomationControl> automation_control (const Evoral::Parameter& id) const;
65 virtual void add_control(boost::shared_ptr<Evoral::Control>);
66 virtual bool find_next_event (double start, double end, Evoral::ControlEvent& ev, bool only_active = true) const;
67 void clear_controls ();
69 virtual void transport_located (framepos_t now);
70 virtual void transport_stopped (framepos_t now);
72 virtual std::string describe_parameter(Evoral::Parameter param);
73 virtual std::string value_as_string (boost::shared_ptr<const AutomationControl>) const;
75 AutoState get_parameter_automation_state (Evoral::Parameter param);
76 virtual void set_parameter_automation_state (Evoral::Parameter param, AutoState);
78 AutoStyle get_parameter_automation_style (Evoral::Parameter param);
79 void set_parameter_automation_style (Evoral::Parameter param, AutoStyle);
81 void protect_automation ();
83 const std::set<Evoral::Parameter>& what_can_be_automated() const { return _can_automate_list; }
84 void what_has_existing_automation (std::set<Evoral::Parameter>&) const;
86 static const std::string xml_node_name;
88 int set_automation_xml_state (const XMLNode&, Evoral::Parameter default_param);
89 XMLNode& get_automation_xml_state();
91 PBD::Signal0<void> AutomationStateChanged;
96 void can_automate(Evoral::Parameter);
98 virtual void automation_list_automation_state_changed (Evoral::Parameter, AutoState) {}
100 int load_automation (const std::string& path);
101 int old_set_automation_state(const XMLNode&);
103 std::set<Evoral::Parameter> _can_automate_list;
105 framepos_t _last_automation_snapshot;
108 PBD::ScopedConnectionList _control_connections; ///< connections to our controls' signals
112 } // namespace ARDOUR
114 #endif /* __ardour_automatable_h__ */