Allow ardour to manipulate connections between two JACK ports that don't belong to us.
[ardour.git] / gtk2_ardour / global_port_matrix.cc
1 /*
2     Copyright (C) 2009 Paul Davis
3
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.
8
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.
13
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.
17
18 */
19
20 #include <gtkmm/image.h>
21 #include <gtkmm/stock.h>
22 #include "global_port_matrix.h"
23 #include "utils.h"
24
25 #include "ardour/bundle.h"
26 #include "ardour/session.h"
27 #include "ardour/audioengine.h"
28 #include "ardour/port.h"
29
30 #include "i18n.h"
31
32 using namespace std;
33
34 GlobalPortMatrix::GlobalPortMatrix (Gtk::Window* p, ARDOUR::Session& s, ARDOUR::DataType t)
35         : PortMatrix (p, s, t)
36 {
37         setup_all_ports ();
38 }
39
40 void
41 GlobalPortMatrix::setup_ports (int dim)
42 {
43         _ports[dim].suspend_signals ();
44         _ports[dim].gather (_session, dim == IN, false);
45         _ports[dim].resume_signals ();
46 }
47
48 void
49 GlobalPortMatrix::set_state (ARDOUR::BundleChannel c[2], bool s)
50 {
51         ARDOUR::Bundle::PortList const & in_ports = c[IN].bundle->channel_ports (c[IN].channel);
52         ARDOUR::Bundle::PortList const & out_ports = c[OUT].bundle->channel_ports (c[OUT].channel);
53
54         for (ARDOUR::Bundle::PortList::const_iterator i = in_ports.begin(); i != in_ports.end(); ++i) {
55                 for (ARDOUR::Bundle::PortList::const_iterator j = out_ports.begin(); j != out_ports.end(); ++j) {
56
57                         ARDOUR::Port* p = _session.engine().get_port_by_name (*i);
58                         ARDOUR::Port* q = _session.engine().get_port_by_name (*j);
59
60                         if (p) {
61                                 if (s) {
62                                         p->connect (*j);
63                                 } else {
64                                         p->disconnect (*j);
65                                 }
66                         } else if (q) {
67                                 if (s) {
68                                         q->connect (*i);
69                                 } else {
70                                         q->disconnect (*i);
71                                 }
72                         } else {
73                                 /* two non-Ardour ports */
74                                 if (s) {
75                                         jack_connect (_session.engine().jack (), j->c_str(), i->c_str());
76                                 } else {
77                                         jack_disconnect (_session.engine().jack (), j->c_str(), i->c_str());
78                                 }
79                         }
80                 }
81         }
82 }
83
84 PortMatrixNode::State
85 GlobalPortMatrix::get_state (ARDOUR::BundleChannel c[2]) const
86 {
87         ARDOUR::Bundle::PortList const & in_ports = c[IN].bundle->channel_ports (c[IN].channel);
88         ARDOUR::Bundle::PortList const & out_ports = c[OUT].bundle->channel_ports (c[OUT].channel);
89         if (in_ports.empty() || out_ports.empty()) {
90                 /* we're looking at a bundle with no parts associated with this channel,
91                    so nothing to connect */
92                 return PortMatrixNode::NOT_ASSOCIATED;
93         }
94
95         for (ARDOUR::Bundle::PortList::const_iterator i = in_ports.begin(); i != in_ports.end(); ++i) {
96                 for (ARDOUR::Bundle::PortList::const_iterator j = out_ports.begin(); j != out_ports.end(); ++j) {
97
98                         ARDOUR::Port* p = _session.engine().get_port_by_name (*i);
99                         ARDOUR::Port* q = _session.engine().get_port_by_name (*j);
100
101                         if (!p && !q) {
102                                 /* two non-Ardour ports; things are slightly more involved */
103                                 /* XXX: is this the easiest way to do this? */
104                                 /* XXX: isn't this very inefficient? */
105
106                                 jack_client_t* jack = _session.engine().jack ();
107                                 jack_port_t* jp = jack_port_by_name (jack, i->c_str());
108                                 if (jp == 0) {
109                                         return PortMatrixNode::NOT_ASSOCIATED;
110                                 }
111                                 
112                                 char const ** c = jack_port_get_all_connections (jack, jp);
113
114                                 char const ** p = c;
115                                 
116                                 while (p && *p != 0) {
117                                         if (strcmp (*p, j->c_str()) == 0) {
118                                                 free (c);
119                                                 return PortMatrixNode::ASSOCIATED;
120                                         }
121                                         ++p;
122                                 }
123
124                                 free (c);
125                                 return PortMatrixNode::NOT_ASSOCIATED;
126                         }
127
128                         if (p && p->connected_to (*j) == false) {
129                                 return PortMatrixNode::NOT_ASSOCIATED;
130                         } else if (q && q->connected_to (*i) == false) {
131                                 return PortMatrixNode::NOT_ASSOCIATED;
132                         }
133
134                 }
135         }
136
137         return PortMatrixNode::ASSOCIATED;
138 }
139
140 GlobalPortMatrixWindow::GlobalPortMatrixWindow (ARDOUR::Session& s, ARDOUR::DataType t)
141         : _port_matrix (this, s, t)
142 {
143         switch (t) {
144         case ARDOUR::DataType::AUDIO:
145                 set_title (_("Audio Connection Manager"));
146                 break;
147         case ARDOUR::DataType::MIDI:
148                 set_title (_("MIDI Connection Manager"));
149                 break;
150         }
151
152         add (_port_matrix);
153         show_all ();
154 }
155
156 void
157 GlobalPortMatrixWindow::on_show ()
158 {
159         Gtk::Window::on_show ();
160         pair<uint32_t, uint32_t> const pm_max = _port_matrix.max_size ();
161         resize_window_to_proportion_of_monitor (this, pm_max.first, pm_max.second);
162 }