Add a couple of missing attach_buffers() calls after _ports has been changed. I...
[ardour2.git] / gtk2_ardour / step_editor.cc
blob51052d0025f7fb15a8f3e4c34e555c9a16e90435
1 #include "ardour/midi_track.h"
2 #include "ardour/midi_region.h"
3 #include "ardour/tempo.h"
4 #include "ardour/types.h"
6 #include "gui_thread.h"
7 #include "midi_region_view.h"
8 #include "public_editor.h"
9 #include "step_editor.h"
10 #include "step_entry.h"
12 using namespace ARDOUR;
13 using namespace Gtk;
14 using namespace std;
16 StepEditor::StepEditor (PublicEditor& e, boost::shared_ptr<MidiTrack> t, MidiTimeAxisView& mtv)
17 : _editor (e)
18 , _track (t)
19 , step_editor (0)
20 , _mtv (mtv)
22 step_edit_insert_position = 0;
23 _step_edit_triplet_countdown = 0;
24 _step_edit_within_chord = 0;
25 _step_edit_chord_duration = 0.0;
26 step_edit_region_view = 0;
28 _track->PlaylistChanged.connect (*this, invalidator (*this),
29 boost::bind (&StepEditor::playlist_changed, this),
30 gui_context());
31 playlist_changed ();
34 StepEditor::~StepEditor()
36 delete step_editor;
39 void
40 StepEditor::start_step_editing ()
42 _step_edit_triplet_countdown = 0;
43 _step_edit_within_chord = 0;
44 _step_edit_chord_duration = 0.0;
45 step_edit_region.reset ();
46 step_edit_region_view = 0;
47 last_added_pitch = -1;
48 last_added_end = 0;
50 resync_step_edit_position ();
51 prepare_step_edit_region ();
52 reset_step_edit_beat_pos ();
54 assert (step_edit_region);
55 assert (step_edit_region_view);
57 if (step_editor == 0) {
58 step_editor = new StepEntry (*this);
59 step_editor->signal_delete_event().connect (sigc::mem_fun (*this, &StepEditor::step_editor_hidden));
60 step_editor->signal_hide().connect (sigc::mem_fun (*this, &StepEditor::step_editor_hide));
63 step_edit_region_view->show_step_edit_cursor (step_edit_beat_pos);
64 step_edit_region_view->set_step_edit_cursor_width (step_editor->note_length());
66 step_editor->set_position (WIN_POS_MOUSE);
67 step_editor->present ();
70 void
71 StepEditor::resync_step_edit_position ()
73 step_edit_insert_position = _editor.get_preferred_edit_position ();
76 void
77 StepEditor::resync_step_edit_to_edit_point ()
79 resync_step_edit_position ();
80 if (step_edit_region) {
81 reset_step_edit_beat_pos ();
85 void
86 StepEditor::prepare_step_edit_region ()
88 boost::shared_ptr<Region> r = _track->playlist()->top_region_at (step_edit_insert_position);
90 if (r) {
91 step_edit_region = boost::dynamic_pointer_cast<MidiRegion>(r);
94 if (step_edit_region) {
95 RegionView* rv = _mtv.midi_view()->find_view (step_edit_region);
96 step_edit_region_view = dynamic_cast<MidiRegionView*> (rv);
98 } else {
100 const Meter& m = _mtv.session()->tempo_map().meter_at (step_edit_insert_position);
101 const Tempo& t = _mtv.session()->tempo_map().tempo_at (step_edit_insert_position);
103 step_edit_region = _mtv.add_region (step_edit_insert_position, floor (m.frames_per_bar (t, _mtv.session()->frame_rate())), true);
105 RegionView* rv = _mtv.midi_view()->find_view (step_edit_region);
106 step_edit_region_view = dynamic_cast<MidiRegionView*>(rv);
111 void
112 StepEditor::reset_step_edit_beat_pos ()
114 assert (step_edit_region);
115 assert (step_edit_region_view);
117 framecnt_t frames_from_start = _editor.get_preferred_edit_position() - step_edit_region->position();
119 if (frames_from_start < 0) {
120 /* this can happen with snap enabled, and the edit point == Playhead. we snap the
121 position of the new region, and it can end up after the edit point.
123 frames_from_start = 0;
126 step_edit_beat_pos = step_edit_region_view->frames_to_beats (frames_from_start);
127 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
130 bool
131 StepEditor::step_editor_hidden (GdkEventAny*)
133 step_editor_hide ();
134 return true;
137 void
138 StepEditor::step_editor_hide ()
140 /* everything else will follow the change in the model */
141 _track->set_step_editing (false);
144 void
145 StepEditor::stop_step_editing ()
147 if (step_editor) {
148 step_editor->hide ();
151 if (step_edit_region_view) {
152 step_edit_region_view->hide_step_edit_cursor();
155 step_edit_region.reset ();
158 void
159 StepEditor::check_step_edit ()
161 MidiRingBuffer<framepos_t>& incoming (_track->step_edit_ring_buffer());
162 uint8_t* buf;
163 uint32_t bufsize = 32;
165 buf = new uint8_t[bufsize];
167 while (incoming.read_space()) {
168 framepos_t time;
169 Evoral::EventType type;
170 uint32_t size;
172 incoming.read_prefix (&time, &type, &size);
174 if (size > bufsize) {
175 delete [] buf;
176 bufsize = size;
177 buf = new uint8_t[bufsize];
180 incoming.read_contents (size, buf);
182 if ((buf[0] & 0xf0) == MIDI_CMD_NOTE_ON) {
183 step_add_note (buf[0] & 0xf, buf[1], buf[2], 0.0);
189 StepEditor::step_add_bank_change (uint8_t /*channel*/, uint8_t /*bank*/)
191 return 0;
195 StepEditor::step_add_program_change (uint8_t /*channel*/, uint8_t /*program*/)
197 return 0;
200 void
201 StepEditor::step_edit_sustain (Evoral::MusicalTime beats)
203 if (step_edit_region_view) {
204 step_edit_region_view->step_sustain (beats);
208 void
209 StepEditor::move_step_edit_beat_pos (Evoral::MusicalTime beats)
211 if (beats > 0.0) {
212 step_edit_beat_pos = min (step_edit_beat_pos + beats,
213 step_edit_region_view->frames_to_beats (step_edit_region->length()));
214 } else if (beats < 0.0) {
215 if (-beats < step_edit_beat_pos) {
216 step_edit_beat_pos += beats; // its negative, remember
217 } else {
218 step_edit_beat_pos = 0;
221 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
225 StepEditor::step_add_note (uint8_t channel, uint8_t pitch, uint8_t velocity, Evoral::MusicalTime beat_duration)
227 /* do these things in case undo removed the step edit region
229 if (!step_edit_region) {
230 resync_step_edit_position ();
231 prepare_step_edit_region ();
232 reset_step_edit_beat_pos ();
233 step_edit_region_view->show_step_edit_cursor (step_edit_beat_pos);
234 step_edit_region_view->set_step_edit_cursor_width (step_editor->note_length());
237 assert (step_edit_region);
238 assert (step_edit_region_view);
240 if (beat_duration == 0.0) {
241 bool success;
242 beat_duration = _editor.get_grid_type_as_beats (success, step_edit_insert_position);
244 if (!success) {
245 return -1;
249 MidiStreamView* msv = _mtv.midi_view();
251 /* make sure its visible on the vertical axis */
253 if (pitch < msv->lowest_note() || pitch > msv->highest_note()) {
254 msv->update_note_range (pitch);
255 msv->set_note_range (MidiStreamView::ContentsRange);
258 /* make sure its visible on the horizontal axis */
260 framepos_t fpos = step_edit_region->position() +
261 step_edit_region_view->beats_to_frames (step_edit_beat_pos + beat_duration);
263 if (fpos >= (_editor.leftmost_position() + _editor.current_page_frames())) {
264 _editor.reset_x_origin (fpos - (_editor.current_page_frames()/4));
267 Evoral::MusicalTime at = step_edit_beat_pos;
268 Evoral::MusicalTime len = beat_duration;
270 if ((last_added_pitch >= 0) && (pitch == last_added_pitch) && (last_added_end == step_edit_beat_pos)) {
272 /* avoid any apparent note overlap - move the start of this note
273 up by 1 tick from where the last note ended
276 at += 1.0/Timecode::BBT_Time::ticks_per_beat;
277 len -= 1.0/Timecode::BBT_Time::ticks_per_beat;
280 step_edit_region_view->step_add_note (channel, pitch, velocity, at, len);
282 last_added_pitch = pitch;
283 last_added_end = at+len;
285 if (_step_edit_triplet_countdown > 0) {
286 _step_edit_triplet_countdown--;
288 if (_step_edit_triplet_countdown == 0) {
289 _step_edit_triplet_countdown = 3;
293 if (!_step_edit_within_chord) {
294 step_edit_beat_pos += beat_duration;
295 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
296 } else {
297 step_edit_beat_pos += 1.0/Timecode::BBT_Time::ticks_per_beat; // tiny, but no longer overlapping
298 _step_edit_chord_duration = max (_step_edit_chord_duration, beat_duration);
301 return 0;
304 void
305 StepEditor::set_step_edit_cursor_width (Evoral::MusicalTime beats)
307 if (step_edit_region_view) {
308 step_edit_region_view->set_step_edit_cursor_width (beats);
312 bool
313 StepEditor::step_edit_within_triplet() const
315 return _step_edit_triplet_countdown > 0;
318 bool
319 StepEditor::step_edit_within_chord() const
321 return _step_edit_within_chord;
324 void
325 StepEditor::step_edit_toggle_triplet ()
327 if (_step_edit_triplet_countdown == 0) {
328 _step_edit_within_chord = false;
329 _step_edit_triplet_countdown = 3;
330 } else {
331 _step_edit_triplet_countdown = 0;
335 void
336 StepEditor::step_edit_toggle_chord ()
338 if (_step_edit_within_chord) {
339 _step_edit_within_chord = false;
340 step_edit_beat_pos += _step_edit_chord_duration;
341 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
342 } else {
343 _step_edit_triplet_countdown = 0;
344 _step_edit_within_chord = true;
348 void
349 StepEditor::step_edit_rest (Evoral::MusicalTime beats)
351 bool success;
353 if (beats == 0.0) {
354 beats = _editor.get_grid_type_as_beats (success, step_edit_insert_position);
355 } else {
356 success = true;
359 if (success) {
360 step_edit_beat_pos += beats;
361 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
365 void
366 StepEditor::step_edit_beat_sync ()
368 step_edit_beat_pos = ceil (step_edit_beat_pos);
369 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
372 void
373 StepEditor::step_edit_bar_sync ()
375 Session* _session = _mtv.session ();
377 if (!_session || !step_edit_region_view || !step_edit_region) {
378 return;
381 framepos_t fpos = step_edit_region->position() +
382 step_edit_region_view->beats_to_frames (step_edit_beat_pos);
383 fpos = _session->tempo_map().round_to_bar (fpos, 1);
384 step_edit_beat_pos = ceil (step_edit_region_view->frames_to_beats (fpos - step_edit_region->position()));
385 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
388 void
389 StepEditor::playlist_changed ()
391 step_edit_region_connection.disconnect ();
392 _track->playlist()->RegionRemoved.connect (step_edit_region_connection, invalidator (*this),
393 ui_bind (&StepEditor::region_removed, this, _1),
394 gui_context());
397 void
398 StepEditor::region_removed (boost::weak_ptr<Region> wr)
400 boost::shared_ptr<Region> r (wr.lock());
402 if (!r) {
403 return;
406 if (step_edit_region == r) {
407 step_edit_region.reset();
408 step_edit_region_view = 0;
409 // force a recompute of the insert position
410 step_edit_beat_pos = -1.0;
414 string
415 StepEditor::name() const
417 return _track->name();