2 Copyright (C) 2006 Paul Davis
4 This program is free software; you can redistribute it
5 and/or modify it under the terms of the GNU Lesser
6 General Public License as published by the Free Software
7 Foundation; either version 2 of the License, or (at your
8 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.
21 #ifndef ardour_control_protocols_h
22 #define ardour_control_protocols_h
28 #include <boost/shared_ptr.hpp>
30 #include "pbd/stateful.h"
31 #include "pbd/signals.h"
33 #include "control_protocol/visibility.h"
34 #include "control_protocol/basic_ui.h"
35 #include "control_protocol/types.h"
44 class LIBCONTROLCP_API ControlProtocol : public PBD::Stateful, public PBD::ScopedConnectionList, public BasicUI
47 ControlProtocol (Session&, std::string name);
48 virtual ~ControlProtocol();
50 std::string name() const { return _name; }
52 virtual int set_active (bool yn);
53 bool active() const { return _active; }
55 virtual int set_feedback (bool /*yn*/) { return 0; }
56 virtual bool get_feedback () const { return false; }
58 virtual void midi_connectivity_established () {}
60 virtual void stripable_selection_changed () = 0;
62 PBD::Signal0<void> ActiveChanged;
64 /* signals that a control protocol can emit and other (presumably graphical)
65 user interfaces can respond to
68 static PBD::Signal0<void> ZoomToSession;
69 static PBD::Signal0<void> ZoomIn;
70 static PBD::Signal0<void> ZoomOut;
71 static PBD::Signal0<void> Enter;
72 static PBD::Signal0<void> Undo;
73 static PBD::Signal0<void> Redo;
74 static PBD::Signal1<void,float> ScrollTimeline;
75 static PBD::Signal1<void,uint32_t> GotoView;
76 static PBD::Signal0<void> CloseDialog;
77 static PBD::Signal0<void> VerticalZoomInAll;
78 static PBD::Signal0<void> VerticalZoomOutAll;
79 static PBD::Signal0<void> VerticalZoomInSelected;
80 static PBD::Signal0<void> VerticalZoomOutSelected;
81 static PBD::Signal0<void> StepTracksDown;
82 static PBD::Signal0<void> StepTracksUp;
84 static PBD::Signal1<void,boost::shared_ptr<ARDOUR::Stripable> > AddStripableToSelection;
85 static PBD::Signal1<void,boost::shared_ptr<ARDOUR::Stripable> > SetStripableSelection;
86 static PBD::Signal1<void,boost::shared_ptr<ARDOUR::Stripable> > ToggleStripableSelection;
87 static PBD::Signal1<void,boost::shared_ptr<ARDOUR::Stripable> > RemoveStripableFromSelection;
88 static PBD::Signal0<void> ClearStripableSelection;
90 static boost::shared_ptr<ARDOUR::Stripable> first_selected_stripable ();
91 static void set_first_selected_stripable (boost::shared_ptr<ARDOUR::Stripable>);
93 static boost::shared_ptr<ARDOUR::Stripable> leftmost_mixer_stripable ();
94 static void set_leftmost_mixer_stripable (boost::shared_ptr<ARDOUR::Stripable>);
96 /* the model here is as follows:
98 we imagine most control surfaces being able to control
99 from 1 to N tracks at a time, with a session that may
100 contain 1 to M tracks, where M may be smaller, larger or
103 the control surface has a fixed set of physical controllers
104 which can potentially be mapped onto different tracks/busses
107 therefore, the control protocol object maintains
108 a table that reflects the current mapping between
109 the controls and route object.
112 void set_route_table_size (uint32_t size);
113 void set_route_table (uint32_t table_index, boost::shared_ptr<ARDOUR::Route>);
114 bool set_route_table (uint32_t table_index, uint32_t remote_control_id);
116 void route_set_rec_enable (uint32_t table_index, bool yn);
117 bool route_get_rec_enable (uint32_t table_index);
119 float route_get_gain (uint32_t table_index);
120 void route_set_gain (uint32_t table_index, float);
121 float route_get_effective_gain (uint32_t table_index);
123 float route_get_peak_input_power (uint32_t table_index, uint32_t which_input);
125 bool route_get_muted (uint32_t table_index);
126 void route_set_muted (uint32_t table_index, bool);
128 bool route_get_soloed (uint32_t table_index);
129 void route_set_soloed (uint32_t table_index, bool);
131 std::string route_get_name (uint32_t table_index);
133 virtual std::list<boost::shared_ptr<ARDOUR::Bundle> > bundles ();
135 virtual bool has_editor () const { return false; }
136 virtual void* get_gui() const { return 0; }
137 virtual void tear_down_gui() { }
139 XMLNode& get_state ();
140 int set_state (XMLNode const &, int version);
142 static const std::string state_node_name;
143 static StripableNotificationList const & last_selected() { return _last_selected; }
144 static void notify_stripable_selection_changed (StripableNotificationListPtr);
147 std::vector<boost::shared_ptr<ARDOUR::Route> > route_table;
150 void next_track (uint32_t initial_id);
151 void prev_track (uint32_t initial_id);
154 LIBCONTROLCP_LOCAL ControlProtocol (const ControlProtocol&); /* noncopyable */
157 static Glib::Threads::Mutex special_stripable_mutex;
158 static boost::weak_ptr<ARDOUR::Stripable> _leftmost_mixer_stripable;
159 static boost::weak_ptr<ARDOUR::Stripable> _first_selected_stripable;
160 static StripableNotificationList _last_selected;
161 static PBD::ScopedConnection selection_connection;
162 static bool selection_connected;
166 class ControlProtocolDescriptor {
168 const char* name; /* descriptive */
169 const char* id; /* unique and version-specific */
170 void* ptr; /* protocol can store a value here */
171 void* module; /* not for public access */
172 int mandatory; /* if non-zero, always load and do not make optional */
173 bool supports_feedback; /* if true, protocol has toggleable feedback mechanism */
174 bool (*probe)(ControlProtocolDescriptor*);
175 ControlProtocol* (*initialize)(ControlProtocolDescriptor*,Session*);
176 void (*destroy)(ControlProtocolDescriptor*,ControlProtocol*);
177 /* this is required if the control protocol connects to signals
178 from libardour. they all do. It should allocate a
179 type-specific request buffer for the calling thread, and
180 store it in a thread-local location that will be used to
181 find it when sending the event loop a message
182 (e.g. call_slot()). It should also return the allocated
185 void* (*request_buffer_factory)(uint32_t);
191 #endif // ardour_control_protocols_h