2 Copyright (C) 2016 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.
24 #include "pbd/convert.h"
25 #include "pbd/debug.h"
26 #include "pbd/enumwriter.h"
27 #include "pbd/error.h"
28 #include "pbd/failed_constructor.h"
29 #include "pbd/xml++.h"
31 #include "ardour/presentation_info.h"
35 using namespace ARDOUR;
39 string PresentationInfo::state_node_name = X_("PresentationInfo");
41 PBD::Signal1<void,PropertyChange const &> PresentationInfo::Change;
42 int PresentationInfo::_change_signal_suspended = 0;
43 PBD::PropertyChange PresentationInfo::_pending_static_changes;
46 namespace Properties {
47 PBD::PropertyDescriptor<bool> selected;
48 PBD::PropertyDescriptor<uint32_t> order;
49 PBD::PropertyDescriptor<uint32_t> color;
54 PresentationInfo::suspend_change_signal ()
56 g_atomic_int_add (&_change_signal_suspended, 1);
60 PresentationInfo::unsuspend_change_signal ()
62 PropertyChange pc = _pending_static_changes;
64 /* XXX some possible race condition here; _pending_static_changes could
65 * be reset by another thread before or after we decrement.
68 if (g_atomic_int_dec_and_test (const_cast<gint*> (&_change_signal_suspended))) {
69 _pending_static_changes.clear ();
70 Change (pc); /* EMIT SIGNAL */
75 PresentationInfo::send_static_change (const PropertyChange& what_changed)
77 if (what_changed.empty()) {
81 if (g_atomic_int_get (&_change_signal_suspended)) {
82 _pending_static_changes.add (what_changed);
86 Change (what_changed);
89 const PresentationInfo::order_t PresentationInfo::max_order = UINT32_MAX;
90 const PresentationInfo::Flag PresentationInfo::Bus = PresentationInfo::Flag (PresentationInfo::AudioBus|PresentationInfo::MidiBus);
91 const PresentationInfo::Flag PresentationInfo::Track = PresentationInfo::Flag (PresentationInfo::AudioTrack|PresentationInfo::MidiTrack);
92 const PresentationInfo::Flag PresentationInfo::Route = PresentationInfo::Flag (PresentationInfo::Bus|PresentationInfo::Track);
93 const PresentationInfo::Flag PresentationInfo::AllRoutes = PresentationInfo::Flag (PresentationInfo::Route|PresentationInfo::MasterOut|PresentationInfo::MonitorOut);
94 const PresentationInfo::Flag PresentationInfo::AllStripables = PresentationInfo::Flag (PresentationInfo::AllRoutes|PresentationInfo::VCA);
97 PresentationInfo::make_property_quarks ()
99 Properties::selected.property_id = g_quark_from_static_string (X_("selected"));
100 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for selected = %1\n", Properties::selected.property_id));
101 Properties::color.property_id = g_quark_from_static_string (X_("color"));
102 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for color = %1\n", Properties::color.property_id));
103 Properties::order.property_id = g_quark_from_static_string (X_("order"));
104 DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for order = %1\n", Properties::order.property_id));
107 PresentationInfo::PresentationInfo (Flag f)
109 , _flags (Flag (f & ~OrderSet))
112 /* OrderSet is not set */
115 PresentationInfo::PresentationInfo (order_t o, Flag f)
117 , _flags (Flag (f | OrderSet))
120 /* OrderSet is set */
122 PresentationInfo::PresentationInfo (PresentationInfo const& other)
123 : _order (other.order())
124 , _flags (other.flags())
125 , _color (other.color())
130 PresentationInfo::get_state ()
132 XMLNode* node = new XMLNode (state_node_name);
133 node->add_property ("order", PBD::to_string (_order, std::dec));
134 node->add_property ("flags", enum_2_string (_flags));
135 node->add_property ("color", PBD::to_string (_color, std::dec));
141 PresentationInfo::set_state (XMLNode const& node, int /* version */)
143 if (node.name() != state_node_name) {
147 XMLProperty const* prop;
150 if ((prop = node.property (X_("order"))) != 0) {
151 order_t o = atoi (prop->value());
153 pc.add (Properties::order);
156 _order = atoi (prop->value());
159 if ((prop = node.property (X_("flags"))) != 0) {
160 Flag f = Flag (string_2_enum (prop->value(), f));
161 if ((f&Hidden) != (_flags&Hidden)) {
162 pc.add (Properties::hidden);
167 if ((prop = node.property (X_("color"))) != 0) {
168 color_t c = atoi (prop->value());
170 pc.add (Properties::color);
175 send_change (PropertyChange (pc));
181 PresentationInfo::Flag
182 PresentationInfo::get_flags (XMLNode const& node)
184 XMLNodeList nlist = node.children ();
186 for (XMLNodeConstIterator niter = nlist.begin(); niter != nlist.end(); ++niter){
187 XMLNode* child = *niter;
189 if (child->name() == PresentationInfo::state_node_name) {
190 XMLProperty const* prop = child->property (X_("flags"));
192 Flag f = (Flag) string_2_enum (prop->value(), f);
201 PresentationInfo::set_color (PresentationInfo::color_t c)
205 send_change (PropertyChange (Properties::color));
206 send_static_change (PropertyChange (Properties::color));
211 PresentationInfo::color_set () const
213 /* all RGBA values zero? not set.
215 * this is heuristic, but it is fairly realistic. who will ever set
216 * a color to completely transparent black? only the constructor ..
222 PresentationInfo::set_selected (bool yn)
224 if (yn != selected()) {
226 _flags = Flag (_flags | Selected);
228 _flags = Flag (_flags & ~Selected);
230 send_change (PropertyChange (Properties::selected));
231 send_static_change (PropertyChange (Properties::selected));
236 PresentationInfo::set_hidden (bool yn)
238 if (yn != hidden()) {
241 _flags = Flag (_flags | Hidden);
243 _flags = Flag (_flags & ~Hidden);
246 send_change (PropertyChange (Properties::hidden));
247 send_static_change (PropertyChange (Properties::hidden));
252 PresentationInfo::set_order (order_t order)
254 _flags = Flag (_flags|OrderSet);
256 if (order != _order) {
258 send_change (PropertyChange (Properties::order));
259 send_static_change (PropertyChange (Properties::order));
264 PresentationInfo::operator= (PresentationInfo const& other)
266 if (this != &other) {
267 _order = other.order();
268 _flags = other.flags();
269 _color = other.color();
276 operator<<(std::ostream& o, ARDOUR::PresentationInfo const& pi)
278 return o << pi.order() << '/' << enum_2_string (pi.flags()) << '/' << pi.color();