2 Copyright (C) 2002 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.
26 #include "ardour/automation_list.h"
27 #include "ardour/event_type_map.h"
28 #include "evoral/Curve.hpp"
29 #include "pbd/stacktrace.h"
30 #include "pbd/enumwriter.h"
35 using namespace ARDOUR;
38 PBD::Signal1<void,AutomationList *> AutomationList::AutomationListCreated;
41 static void dumpit (const AutomationList& al, string prefix = "")
43 cerr << prefix << &al << endl;
44 for (AutomationList::const_iterator i = al.const_begin(); i != al.const_end(); ++i) {
45 cerr << prefix << '\t' << (*i)->when << ',' << (*i)->value << endl;
51 AutomationList::AutomationList (Evoral::Parameter id)
58 create_curve_if_necessary();
60 assert(_parameter.type() != NullAutomation);
61 AutomationListCreated(this);
64 AutomationList::AutomationList (const AutomationList& other)
65 : StatefulDestructible()
68 _style = other._style;
69 _state = other._state;
70 _touching = other._touching;
72 create_curve_if_necessary();
74 assert(_parameter.type() != NullAutomation);
75 AutomationListCreated(this);
78 AutomationList::AutomationList (const AutomationList& other, double start, double end)
79 : ControlList(other, start, end)
81 _style = other._style;
82 _state = other._state;
83 _touching = other._touching;
85 create_curve_if_necessary();
87 assert(_parameter.type() != NullAutomation);
88 AutomationListCreated(this);
91 /** @param id is used for legacy sessions where the type is not present
92 * in or below the AutomationList node. It is used if @param id is non-null.
94 AutomationList::AutomationList (const XMLNode& node, Evoral::Parameter id)
101 set_state (node, Stateful::loading_state_version);
107 create_curve_if_necessary();
109 assert(_parameter.type() != NullAutomation);
110 AutomationListCreated(this);
113 AutomationList::~AutomationList()
117 boost::shared_ptr<Evoral::ControlList>
118 AutomationList::create(Evoral::Parameter id)
120 return boost::shared_ptr<Evoral::ControlList>(new AutomationList(id));
124 AutomationList::create_curve_if_necessary()
126 switch (_parameter.type()) {
129 case FadeInAutomation:
130 case FadeOutAutomation:
131 case EnvelopeAutomation:
140 AutomationList::operator== (const AutomationList& other)
142 return _events == other._events;
146 AutomationList::operator= (const AutomationList& other)
148 if (this != &other) {
152 for (const_iterator i = other._events.begin(); i != other._events.end(); ++i) {
153 _events.push_back (new Evoral::ControlEvent (**i));
156 _min_yval = other._min_yval;
157 _max_yval = other._max_yval;
158 _max_xval = other._max_xval;
159 _default_value = other._default_value;
162 maybe_signal_changed ();
169 AutomationList::maybe_signal_changed ()
171 ControlList::maybe_signal_changed ();
173 if (!ControlList::frozen()) {
174 StateChanged (); /* EMIT SIGNAL */
179 AutomationList::set_automation_state (AutoState s)
183 automation_state_changed (); /* EMIT SIGNAL */
188 AutomationList::set_automation_style (AutoStyle s)
192 automation_style_changed (); /* EMIT SIGNAL */
197 AutomationList::start_touch ()
204 AutomationList::stop_touch ()
211 AutomationList::thaw ()
215 if (_changed_when_thawed) {
216 _changed_when_thawed = false;
217 StateChanged(); /* EMIT SIGNAL */
222 AutomationList::get_state ()
228 AutomationList::state (bool full)
230 XMLNode* root = new XMLNode (X_("AutomationList"));
232 LocaleGuard lg (X_("POSIX"));
234 root->add_property ("automation-id", EventTypeMap::instance().to_symbol(_parameter));
236 root->add_property ("id", _id.to_s());
238 snprintf (buf, sizeof (buf), "%.12g", _default_value);
239 root->add_property ("default", buf);
240 snprintf (buf, sizeof (buf), "%.12g", _min_yval);
241 root->add_property ("min-yval", buf);
242 snprintf (buf, sizeof (buf), "%.12g", _max_yval);
243 root->add_property ("max-yval", buf);
244 snprintf (buf, sizeof (buf), "%.12g", _max_xval);
245 root->add_property ("max-xval", buf);
247 root->add_property ("interpolation-style", enum_2_string (_interpolation));
250 root->add_property ("state", auto_state_to_string (_state));
252 /* never save anything but Off for automation state to a template */
253 root->add_property ("state", auto_state_to_string (Off));
256 root->add_property ("style", auto_style_to_string (_style));
258 if (!_events.empty()) {
259 root->add_child_nocopy (serialize_events());
266 AutomationList::serialize_events ()
268 XMLNode* node = new XMLNode (X_("events"));
271 str.precision(15); //10 digits is enough digits for 24 hours at 96kHz
273 for (iterator xx = _events.begin(); xx != _events.end(); ++xx) {
274 str << (double) (*xx)->when;
276 str <<(double) (*xx)->value;
280 /* XML is a bit wierd */
282 XMLNode* content_node = new XMLNode (X_("foo")); /* it gets renamed by libxml when we set content */
283 content_node->set_content (str.str());
285 node->add_child_nocopy (*content_node);
291 AutomationList::deserialize_events (const XMLNode& node)
293 if (node.children().empty()) {
297 XMLNode* content_node = node.children().front();
299 if (content_node->content().empty()) {
303 ControlList::freeze ();
306 stringstream str (content_node->content());
322 fast_simple_add (x, y);
327 error << _("automation list: cannot load coordinates from XML, all points ignored") << endmsg;
330 reposition_for_rt_add (0);
331 maybe_signal_changed ();
340 AutomationList::set_state (const XMLNode& node, int version)
342 XMLNodeList nlist = node.children();
344 XMLNodeIterator niter;
345 const XMLProperty* prop;
347 if (node.name() == X_("events")) {
348 /* partial state setting*/
349 return deserialize_events (node);
352 if (node.name() == X_("Envelope") || node.name() == X_("FadeOut") || node.name() == X_("FadeIn")) {
354 if ((nsos = node.child (X_("AutomationList")))) {
355 /* new school in old school clothing */
356 return set_state (*nsos, version);
361 const XMLNodeList& elist = node.children();
362 XMLNodeConstIterator i;
367 ControlList::freeze ();
370 for (i = elist.begin(); i != elist.end(); ++i) {
372 if ((prop = (*i)->property ("x")) == 0) {
373 error << _("automation list: no x-coordinate stored for control point (point ignored)") << endmsg;
376 x = atoi (prop->value().c_str());
378 if ((prop = (*i)->property ("y")) == 0) {
379 error << _("automation list: no y-coordinate stored for control point (point ignored)") << endmsg;
382 y = atof (prop->value().c_str());
384 fast_simple_add (x, y);
392 if (node.name() != X_("AutomationList") ) {
393 error << string_compose (_("AutomationList: passed XML node called %1, not \"AutomationList\" - ignored"), node.name()) << endmsg;
397 if ((prop = node.property ("id")) != 0) {
398 _id = prop->value ();
399 /* update session AL list */
400 AutomationListCreated(this);
403 if ((prop = node.property (X_("automation-id"))) != 0){
404 _parameter = EventTypeMap::instance().new_parameter(prop->value());
406 warning << "Legacy session: automation list has no automation-id property.";
409 if ((prop = node.property (X_("interpolation-style"))) != 0) {
410 _interpolation = (InterpolationStyle)string_2_enum(prop->value(), _interpolation);
412 _interpolation = Linear;
415 if ((prop = node.property (X_("default"))) != 0){
416 _default_value = atof (prop->value().c_str());
418 _default_value = 0.0;
421 if ((prop = node.property (X_("style"))) != 0) {
422 _style = string_to_auto_style (prop->value());
427 if ((prop = node.property (X_("state"))) != 0) {
428 _state = string_to_auto_state (prop->value());
433 if ((prop = node.property (X_("min_yval"))) != 0) {
434 _min_yval = atof (prop->value ().c_str());
439 if ((prop = node.property (X_("max_yval"))) != 0) {
440 _max_yval = atof (prop->value ().c_str());
445 if ((prop = node.property (X_("max_xval"))) != 0) {
446 _max_xval = atof (prop->value ().c_str());
448 _max_xval = 0; // means "no limit ;
451 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
452 if ((*niter)->name() == X_("events")) {
453 deserialize_events (*(*niter));