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 PBD::Signal0<void> ActiveChanged;
62 /* signals that a control protocol can emit and other (presumably graphical)
63 user interfaces can respond to
66 static PBD::Signal0<void> ZoomToSession;
67 static PBD::Signal0<void> ZoomIn;
68 static PBD::Signal0<void> ZoomOut;
69 static PBD::Signal0<void> Enter;
70 static PBD::Signal0<void> Undo;
71 static PBD::Signal0<void> Redo;
72 static PBD::Signal1<void,float> ScrollTimeline;
73 static PBD::Signal1<void,uint32_t> GotoView;
74 static PBD::Signal0<void> CloseDialog;
75 static PBD::Signal0<void> VerticalZoomInAll;
76 static PBD::Signal0<void> VerticalZoomOutAll;
77 static PBD::Signal0<void> VerticalZoomInSelected;
78 static PBD::Signal0<void> VerticalZoomOutSelected;
79 static PBD::Signal0<void> StepTracksDown;
80 static PBD::Signal0<void> StepTracksUp;
82 static PBD::Signal1<void,boost::shared_ptr<ARDOUR::Stripable> > AddStripableToSelection;
83 static PBD::Signal1<void,boost::shared_ptr<ARDOUR::Stripable> > SetStripableSelection;
84 static PBD::Signal1<void,boost::shared_ptr<ARDOUR::Stripable> > ToggleStripableSelection;
85 static PBD::Signal1<void,boost::shared_ptr<ARDOUR::Stripable> > RemoveStripableFromSelection;
86 static PBD::Signal0<void> ClearStripableSelection;
88 /* signals that one UI (e.g. the GUI) can emit to get all other UI's to
89 respond. Typically this will always be GUI->"others" - the GUI pays
90 no attention to these signals.
93 static PBD::Signal1<void,StripableNotificationListPtr> StripableSelectionChanged;
95 static boost::shared_ptr<ARDOUR::Stripable> first_selected_stripable ();
96 static void set_first_selected_stripable (boost::shared_ptr<ARDOUR::Stripable>);
98 static boost::shared_ptr<ARDOUR::Stripable> leftmost_mixer_stripable ();
99 static void set_leftmost_mixer_stripable (boost::shared_ptr<ARDOUR::Stripable>);
101 /* the model here is as follows:
103 we imagine most control surfaces being able to control
104 from 1 to N tracks at a time, with a session that may
105 contain 1 to M tracks, where M may be smaller, larger or
108 the control surface has a fixed set of physical controllers
109 which can potentially be mapped onto different tracks/busses
112 therefore, the control protocol object maintains
113 a table that reflects the current mapping between
114 the controls and route object.
117 void set_route_table_size (uint32_t size);
118 void set_route_table (uint32_t table_index, boost::shared_ptr<ARDOUR::Route>);
119 bool set_route_table (uint32_t table_index, uint32_t remote_control_id);
121 void route_set_rec_enable (uint32_t table_index, bool yn);
122 bool route_get_rec_enable (uint32_t table_index);
124 float route_get_gain (uint32_t table_index);
125 void route_set_gain (uint32_t table_index, float);
126 float route_get_effective_gain (uint32_t table_index);
128 float route_get_peak_input_power (uint32_t table_index, uint32_t which_input);
130 bool route_get_muted (uint32_t table_index);
131 void route_set_muted (uint32_t table_index, bool);
133 bool route_get_soloed (uint32_t table_index);
134 void route_set_soloed (uint32_t table_index, bool);
136 std::string route_get_name (uint32_t table_index);
138 virtual std::list<boost::shared_ptr<ARDOUR::Bundle> > bundles ();
140 virtual bool has_editor () const { return false; }
141 virtual void* get_gui() const { return 0; }
142 virtual void tear_down_gui() { }
144 XMLNode& get_state ();
145 int set_state (XMLNode const &, int version);
147 static const std::string state_node_name;
148 static StripableNotificationList const & last_selected() { return _last_selected; }
151 std::vector<boost::shared_ptr<ARDOUR::Route> > route_table;
154 void next_track (uint32_t initial_id);
155 void prev_track (uint32_t initial_id);
158 LIBCONTROLCP_LOCAL ControlProtocol (const ControlProtocol&); /* noncopyable */
162 static Glib::Threads::Mutex special_stripable_mutex;
163 static boost::weak_ptr<ARDOUR::Stripable> _leftmost_mixer_stripable;
164 static boost::weak_ptr<ARDOUR::Stripable> _first_selected_stripable;
165 static StripableNotificationList _last_selected;
166 static void stripable_selection_changed (StripableNotificationListPtr);
167 static bool selection_connected;
168 static PBD::ScopedConnection selection_connection;
172 class ControlProtocolDescriptor {
174 const char* name; /* descriptive */
175 const char* id; /* unique and version-specific */
176 void* ptr; /* protocol can store a value here */
177 void* module; /* not for public access */
178 int mandatory; /* if non-zero, always load and do not make optional */
179 bool supports_feedback; /* if true, protocol has toggleable feedback mechanism */
180 bool (*probe)(ControlProtocolDescriptor*);
181 ControlProtocol* (*initialize)(ControlProtocolDescriptor*,Session*);
182 void (*destroy)(ControlProtocolDescriptor*,ControlProtocol*);
183 /* this is required if the control protocol connects to signals
184 from libardour. they all do. It should allocate a
185 type-specific request buffer for the calling thread, and
186 store it in a thread-local location that will be used to
187 find it when sending the event loop a message
188 (e.g. call_slot()). It should also return the allocated
191 void* (*request_buffer_factory)(uint32_t);
197 #endif // ardour_control_protocols_h