Initial support of Latch for some ctrl-surfaces
[ardour.git] / libs / surfaces / faderport8 / callbacks.cc
1 /* Faderport 8 Control Surface
2  * This is the button "View" of the MVC surface inteface,
3  * see actions.cc for the "Controller"
4  *
5  * Copyright (C) 2017 Robin Gareus <robin@gareus.org>
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * as published by the Free Software Foundation; either version 2
10  * of the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
20  */
21
22 #include "ardour/plugin_insert.h"
23 #include "ardour/session.h"
24 #include "ardour/session_configuration.h"
25
26 #include "gtkmm2ext/actions.h"
27
28 #include "faderport8.h"
29
30 #include "pbd/i18n.h"
31
32 using namespace ARDOUR;
33 using namespace ArdourSurface;
34 using namespace ArdourSurface::FP8Types;
35
36 void
37 FaderPort8::connect_session_signals ()
38 {
39          session->RouteAdded.connect(session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_stripable_added_or_removed, this), this);
40          PresentationInfo::Change.connect(session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_pi_property_changed, this, _1), this);
41
42         Config->ParameterChanged.connect (session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_parameter_changed, this, _1), this);
43         session->config.ParameterChanged.connect (session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_parameter_changed, this, _1), this);
44
45         session->TransportStateChange.connect (session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_transport_state_changed, this), this);
46         session->TransportLooped.connect (session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_loop_state_changed, this), this);
47         session->RecordStateChanged.connect (session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_record_state_changed, this), this);
48
49         session->DirtyChanged.connect (session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_session_dirty_changed, this), this);
50         session->SoloChanged.connect (session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_solo_changed, this), this);
51         session->MuteChanged.connect (session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_mute_changed, this), this);
52         session->history().Changed.connect (session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort8::notify_history_changed, this), this);
53 }
54
55 void
56 FaderPort8::send_session_state ()
57 {
58         notify_transport_state_changed ();
59         notify_record_state_changed ();
60         notify_session_dirty_changed ();
61         notify_history_changed ();
62         notify_solo_changed ();
63         notify_mute_changed ();
64         notify_parameter_changed ("clicking");
65
66         notify_automation_mode_changed (); // XXX (stip specific, see below)
67 }
68
69 // TODO: AutomationState display of plugin & send automation
70 // TODO: link/lock control AS.
71 void
72 FaderPort8::notify_automation_mode_changed ()
73 {
74         boost::shared_ptr<Stripable> s = first_selected_stripable();
75         boost::shared_ptr<AutomationControl> ac;
76         if (s) {
77                 switch (_ctrls.fader_mode ()) {
78                         case ModeTrack:
79                                 ac = s->gain_control();
80                                 break;
81                         case ModePan:
82                                 ac = s->pan_azimuth_control();
83                                 break;
84                         default:
85                                 break;
86                 }
87         }
88         if (!s || !ac) {
89                 _ctrls.button (FP8Controls::BtnALatch).set_active (false);
90                 _ctrls.button (FP8Controls::BtnATrim).set_active (false);
91                 _ctrls.button (FP8Controls::BtnAOff).set_active (false);
92                 _ctrls.button (FP8Controls::BtnATouch).set_active (false);
93                 _ctrls.button (FP8Controls::BtnARead).set_active (false);
94                 _ctrls.button (FP8Controls::BtnAWrite).set_active (false);
95                 return;
96         }
97
98         ARDOUR::AutoState as = ac->automation_state();
99         _ctrls.button (FP8Controls::BtnAOff).set_active (as == Off);
100         _ctrls.button (FP8Controls::BtnATouch).set_active (as == Touch);
101         _ctrls.button (FP8Controls::BtnARead).set_active (as == Play);
102         _ctrls.button (FP8Controls::BtnAWrite).set_active (as == Write);
103         _ctrls.button (FP8Controls::BtnALatch).set_active (as == Latch);
104 }
105
106 void
107 FaderPort8::notify_parameter_changed (std::string param)
108 {
109         if (param == "clicking") {
110                 _ctrls.button (FP8Controls::BtnClick).set_active (Config->get_clicking ());
111         }
112 }
113
114 void
115 FaderPort8::notify_transport_state_changed ()
116 {
117         if (session->transport_rolling ()) {
118                 _ctrls.button (FP8Controls::BtnPlay).set_active (true);
119                 _ctrls.button (FP8Controls::BtnStop).set_active (false);
120         } else {
121                 _ctrls.button (FP8Controls::BtnPlay).set_active (false);
122                 _ctrls.button (FP8Controls::BtnStop).set_active (true);
123         }
124
125         /* set rewind/fastforward lights */
126         const float ts = session->transport_speed ();
127         FP8ButtonInterface& b_rew = _ctrls.button (FP8Controls::BtnRewind);
128         FP8ButtonInterface& b_ffw = _ctrls.button (FP8Controls::BtnFastForward);
129
130         const bool rew = (ts < 0.f);
131         const bool ffw = (ts > 0.f && ts != 1.f);
132         if (b_rew.is_active() != rew) {
133                 b_rew.set_active (rew);
134         }
135         if (b_ffw.is_active() != ffw) {
136                 b_ffw.set_active (ffw);
137         }
138
139         notify_loop_state_changed ();
140 }
141
142 void
143 FaderPort8::notify_record_state_changed ()
144 {
145         switch (session->record_status ()) {
146                 case Session::Disabled:
147                         _ctrls.button (FP8Controls::BtnRecord).set_active (0);
148                         _ctrls.button (FP8Controls::BtnRecord).set_blinking (false);
149                         break;
150                 case Session::Enabled:
151                         _ctrls.button (FP8Controls::BtnRecord).set_active (true);
152                         _ctrls.button (FP8Controls::BtnRecord).set_blinking (true);
153                         break;
154                 case Session::Recording:
155                         _ctrls.button (FP8Controls::BtnRecord).set_active (true);
156                         _ctrls.button (FP8Controls::BtnRecord).set_blinking (false);
157                         break;
158         }
159 }
160
161 void
162 FaderPort8::notify_loop_state_changed ()
163 {
164         bool looping = false;
165         Location* looploc = session->locations ()->auto_loop_location ();
166         if (looploc && session->get_play_loop ()) {
167                 looping = true;
168         }
169         _ctrls.button (FP8Controls::BtnLoop).set_active (looping);
170 }
171
172 void
173 FaderPort8::notify_session_dirty_changed ()
174 {
175         const bool is_dirty = session->dirty ();
176         _ctrls.button (FP8Controls::BtnSave).set_active (is_dirty);
177         _ctrls.button (FP8Controls::BtnSave).set_color (is_dirty ? 0xff0000ff : 0x00ff00ff);
178 }
179
180 void
181 FaderPort8::notify_history_changed ()
182 {
183         _ctrls.button (FP8Controls::BtnRedo).set_active (session->redo_depth() > 0);
184         _ctrls.button (FP8Controls::BtnUndo).set_active (session->undo_depth() > 0);
185 }
186
187 void
188 FaderPort8::notify_solo_changed ()
189 {
190         bool soloing = session->soloing() || session->listening();
191 #ifdef MIXBUS
192         soloing |= session->mixbus_soloed();
193 #endif
194         _ctrls.button (FP8Controls::BtnSoloClear).set_active (soloing);
195 #ifdef FP8_MUTESOLO_UNDO
196         if (soloing) {
197                 _solo_state.clear ();
198         }
199 #endif
200 }
201
202 void
203 FaderPort8::notify_mute_changed ()
204 {
205         bool muted = session->muted ();
206 #ifdef FP8_MUTESOLO_UNDO
207         if (muted) {
208                 _mute_state.clear ();
209         }
210 #endif
211         _ctrls.button (FP8Controls::BtnMuteClear).set_active (muted);
212 }
213
214 void
215 FaderPort8::notify_plugin_active_changed ()
216 {
217         boost::shared_ptr<PluginInsert> pi = _plugin_insert.lock();
218         if (pi) {
219                 _ctrls.button (FP8Controls::BtnBypass).set_active (true);
220                 _ctrls.button (FP8Controls::BtnBypass).set_color (pi->enabled () ? 0x00ff00ff : 0xff0000ff);
221         } else {
222                 _ctrls.button (FP8Controls::BtnBypass).set_active (false);
223                 _ctrls.button (FP8Controls::BtnBypass).set_color (0x888888ff);
224         }
225 }
226
227 void
228 FaderPort8::nofity_focus_control (boost::weak_ptr<PBD::Controllable> c)
229 {
230         assert (_link_enabled && !_link_locked);
231         // TODO consider subscribing to c's DropReferences
232         // (in case the control goes away while it has focus, update the BtnColor)
233         _link_control = c;
234         if (c.expired () || 0 == boost::dynamic_pointer_cast<AutomationControl> (_link_control.lock ())) {
235                 _ctrls.button (FP8Controls::BtnLink).set_color (0xff8800ff);
236                 _ctrls.button (FP8Controls::BtnLock).set_color (0xff0000ff);
237         } else {
238                 _ctrls.button (FP8Controls::BtnLink).set_color (0x88ff00ff);
239                 _ctrls.button (FP8Controls::BtnLock).set_color (0x00ff88ff);
240         }
241 }