2 Copyright (C) 2007 Paul Davis
3 Written by Dave Robillard, 2007
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your 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 #define __STDC_LIMIT_MACROS 1
27 #include <pbd/error.h>
28 #include <pbd/enumwriter.h>
29 #include <midi++/events.h>
31 #include <ardour/midi_model.h>
32 #include <ardour/midi_source.h>
33 #include <ardour/types.h>
34 #include <ardour/session.h>
37 using namespace ARDOUR;
40 MidiModel::MidiModel(MidiSource *s, size_t size)
41 : AutomatableSequence(s->session(), size)
44 cerr << "MidiModel \"" << s->name() << "\" constructed: " << this << endl;
47 /** Start a new command.
49 * This has no side-effects on the model or Session, the returned command
50 * can be held on to for as long as the caller wishes, or discarded without
51 * formality, until apply_command is called and ownership is taken.
53 MidiModel::DeltaCommand* MidiModel::new_delta_command(const string name)
55 DeltaCommand* cmd = new DeltaCommand(_midi_source->model(), name);
61 * Ownership of cmd is taken, it must not be deleted by the caller.
62 * The command will constitute one item on the undo stack.
65 MidiModel::apply_command(Session& session, Command* cmd)
67 session.begin_reversible_command(cmd->name());
70 session.commit_reversible_command(cmd);
77 MidiModel::DeltaCommand::DeltaCommand(boost::shared_ptr<MidiModel> m,
78 const std::string& name)
85 MidiModel::DeltaCommand::DeltaCommand(boost::shared_ptr<MidiModel> m,
93 MidiModel::DeltaCommand::add(const boost::shared_ptr<Evoral::Note> note)
95 //cerr << "MEC: apply" << endl;
96 _removed_notes.remove(note);
97 _added_notes.push_back(note);
101 MidiModel::DeltaCommand::remove(const boost::shared_ptr<Evoral::Note> note)
103 //cerr << "MEC: remove" << endl;
104 _added_notes.remove(note);
105 _removed_notes.push_back(note);
109 MidiModel::DeltaCommand::operator()()
111 // This could be made much faster by using a priority_queue for added and
112 // removed notes (or sort here), and doing a single iteration over _model
114 _model->write_lock();
116 // Store the current seek position so we can restore the read iterator
117 // after modifying the contents of the model
118 const double read_time = _model->read_time();
120 for (NoteList::iterator i = _added_notes.begin(); i != _added_notes.end(); ++i)
121 _model->add_note_unlocked(*i);
123 for (NoteList::iterator i = _removed_notes.begin(); i != _removed_notes.end(); ++i)
124 _model->remove_note_unlocked(*i);
126 _model->write_unlock();
128 _model->read_seek(read_time); // restore read position
130 _model->ContentsChanged(); /* EMIT SIGNAL */
134 MidiModel::DeltaCommand::undo()
136 // This could be made much faster by using a priority_queue for added and
137 // removed notes (or sort here), and doing a single iteration over _model
139 _model->write_lock();
141 // Store the current seek position so we can restore the read iterator
142 // after modifying the contents of the model
143 const double read_time = _model->read_time();
145 for (NoteList::iterator i = _added_notes.begin(); i != _added_notes.end(); ++i)
146 _model->remove_note_unlocked(*i);
148 for (NoteList::iterator i = _removed_notes.begin(); i != _removed_notes.end(); ++i)
149 _model->add_note_unlocked(*i);
151 _model->write_unlock();
153 _model->read_seek(read_time); // restore read position
155 _model->ContentsChanged(); /* EMIT SIGNAL */
159 MidiModel::DeltaCommand::marshal_note(const boost::shared_ptr<Evoral::Note> note)
161 XMLNode *xml_note = new XMLNode("note");
162 ostringstream note_str(ios::ate);
163 note_str << int(note->note());
164 xml_note->add_property("note", note_str.str());
166 ostringstream channel_str(ios::ate);
167 channel_str << int(note->channel());
168 xml_note->add_property("channel", channel_str.str());
170 ostringstream time_str(ios::ate);
171 time_str << int(note->time());
172 xml_note->add_property("time", time_str.str());
174 ostringstream length_str(ios::ate);
175 length_str <<(unsigned int) note->length();
176 xml_note->add_property("length", length_str.str());
178 ostringstream velocity_str(ios::ate);
179 velocity_str << (unsigned int) note->velocity();
180 xml_note->add_property("velocity", velocity_str.str());
185 boost::shared_ptr<Evoral::Note> MidiModel::DeltaCommand::unmarshal_note(XMLNode *xml_note)
189 unsigned int channel;
192 unsigned int velocity;
194 if ((prop = xml_note->property("note")) != 0) {
195 istringstream note_str(prop->value());
198 warning << "note information missing note value" << endmsg;
202 if ((prop = xml_note->property("channel")) != 0) {
203 istringstream channel_str(prop->value());
204 channel_str >> channel;
206 warning << "note information missing channel" << endmsg;
210 if ((prop = xml_note->property("time")) != 0) {
211 istringstream time_str(prop->value());
214 warning << "note information missing time" << endmsg;
218 if ((prop = xml_note->property("length")) != 0) {
219 istringstream length_str(prop->value());
220 length_str >> length;
222 warning << "note information missing length" << endmsg;
226 if ((prop = xml_note->property("velocity")) != 0) {
227 istringstream velocity_str(prop->value());
228 velocity_str >> velocity;
230 warning << "note information missing velocity" << endmsg;
234 boost::shared_ptr<Evoral::Note> note_ptr(new Evoral::Note(channel, time, length, note, velocity));
238 #define ADDED_NOTES_ELEMENT "added_notes"
239 #define REMOVED_NOTES_ELEMENT "removed_notes"
240 #define DELTA_COMMAND_ELEMENT "DeltaCommand"
242 int MidiModel::DeltaCommand::set_state(const XMLNode& delta_command)
244 if (delta_command.name() != string(DELTA_COMMAND_ELEMENT)) {
248 _added_notes.clear();
249 XMLNode *added_notes = delta_command.child(ADDED_NOTES_ELEMENT);
250 XMLNodeList notes = added_notes->children();
251 transform(notes.begin(), notes.end(), back_inserter(_added_notes),
252 sigc::mem_fun(*this, &DeltaCommand::unmarshal_note));
254 _removed_notes.clear();
255 XMLNode *removed_notes = delta_command.child(REMOVED_NOTES_ELEMENT);
256 notes = removed_notes->children();
257 transform(notes.begin(), notes.end(), back_inserter(_removed_notes),
258 sigc::mem_fun(*this, &DeltaCommand::unmarshal_note));
263 XMLNode& MidiModel::DeltaCommand::get_state()
265 XMLNode *delta_command = new XMLNode(DELTA_COMMAND_ELEMENT);
266 delta_command->add_property("midi-source", _model->midi_source()->id().to_s());
268 XMLNode *added_notes = delta_command->add_child(ADDED_NOTES_ELEMENT);
269 for_each(_added_notes.begin(), _added_notes.end(), sigc::compose(
270 sigc::mem_fun(*added_notes, &XMLNode::add_child_nocopy),
271 sigc::mem_fun(*this, &DeltaCommand::marshal_note)));
273 XMLNode *removed_notes = delta_command->add_child(REMOVED_NOTES_ELEMENT);
274 for_each(_removed_notes.begin(), _removed_notes.end(), sigc::compose(
275 sigc::mem_fun(*removed_notes, &XMLNode::add_child_nocopy),
276 sigc::mem_fun(*this, &DeltaCommand::marshal_note)));
278 return *delta_command;
281 struct EventTimeComparator {
282 typedef const Evoral::Event* value_type;
283 inline bool operator()(const Evoral::Event& a, const Evoral::Event& b) const {
284 return a.time() >= b.time();
288 /** Write the model to a MidiSource (i.e. save the model).
289 * This is different from manually using read to write to a source in that
290 * note off events are written regardless of the track mode. This is so the
291 * user can switch a recorded track (with note durations from some instrument)
292 * to percussive, save, reload, then switch it back to sustained without
293 * destroying the original note durations.
295 bool MidiModel::write_to(boost::shared_ptr<MidiSource> source)
299 const bool old_percussive = percussive();
300 set_percussive(false);
302 for (Evoral::Sequence::const_iterator i = begin(); i != end(); ++i) {
303 source->append_event_unlocked(Frames, *i);
306 set_percussive(old_percussive);
314 XMLNode& MidiModel::get_state()
316 XMLNode *node = new XMLNode("MidiModel");