2 Copyright (C) 2012 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.
20 #include "ardour/midi_track.h"
21 #include "ardour/midi_region.h"
22 #include "ardour/tempo.h"
23 #include "ardour/types.h"
25 #include "gui_thread.h"
26 #include "midi_region_view.h"
27 #include "public_editor.h"
28 #include "step_editor.h"
29 #include "step_entry.h"
31 using namespace ARDOUR;
35 StepEditor::StepEditor (PublicEditor& e, boost::shared_ptr<MidiTrack> t, MidiTimeAxisView& mtv)
41 step_edit_insert_position = 0;
42 _step_edit_triplet_countdown = 0;
43 _step_edit_within_chord = 0;
44 _step_edit_chord_duration = 0.0;
45 step_edit_region_view = 0;
47 _track->PlaylistChanged.connect (*this, invalidator (*this),
48 boost::bind (&StepEditor::playlist_changed, this),
53 StepEditor::~StepEditor()
59 StepEditor::start_step_editing ()
61 _step_edit_triplet_countdown = 0;
62 _step_edit_within_chord = 0;
63 _step_edit_chord_duration = 0.0;
64 step_edit_region.reset ();
65 step_edit_region_view = 0;
66 last_added_pitch = -1;
69 resync_step_edit_position ();
70 prepare_step_edit_region ();
71 reset_step_edit_beat_pos ();
73 assert (step_edit_region);
74 assert (step_edit_region_view);
76 if (step_editor == 0) {
77 step_editor = new StepEntry (*this);
78 step_editor->signal_delete_event().connect (sigc::mem_fun (*this, &StepEditor::step_editor_hidden));
79 step_editor->signal_hide().connect (sigc::mem_fun (*this, &StepEditor::step_editor_hide));
82 step_edit_region_view->show_step_edit_cursor (step_edit_beat_pos);
83 step_edit_region_view->set_step_edit_cursor_width (step_editor->note_length());
85 step_editor->set_position (WIN_POS_MOUSE);
86 step_editor->present ();
90 StepEditor::resync_step_edit_position ()
92 step_edit_insert_position = _editor.get_preferred_edit_position ();
96 StepEditor::resync_step_edit_to_edit_point ()
98 resync_step_edit_position ();
99 if (step_edit_region) {
100 reset_step_edit_beat_pos ();
105 StepEditor::prepare_step_edit_region ()
107 boost::shared_ptr<Region> r = _track->playlist()->top_region_at (step_edit_insert_position);
110 step_edit_region = boost::dynamic_pointer_cast<MidiRegion>(r);
113 if (step_edit_region) {
114 RegionView* rv = _mtv.midi_view()->find_view (step_edit_region);
115 step_edit_region_view = dynamic_cast<MidiRegionView*> (rv);
119 const Meter& m = _mtv.session()->tempo_map().meter_at (step_edit_insert_position);
120 const Tempo& t = _mtv.session()->tempo_map().tempo_at (step_edit_insert_position);
122 step_edit_region = _mtv.add_region (step_edit_insert_position, floor (m.frames_per_bar (t, _mtv.session()->frame_rate())), true);
124 RegionView* rv = _mtv.midi_view()->find_view (step_edit_region);
125 step_edit_region_view = dynamic_cast<MidiRegionView*>(rv);
131 StepEditor::reset_step_edit_beat_pos ()
133 assert (step_edit_region);
134 assert (step_edit_region_view);
136 framecnt_t frames_from_start = _editor.get_preferred_edit_position() - step_edit_region->position();
138 if (frames_from_start < 0) {
139 /* this can happen with snap enabled, and the edit point == Playhead. we snap the
140 position of the new region, and it can end up after the edit point.
142 frames_from_start = 0;
145 step_edit_beat_pos = step_edit_region_view->region_frames_to_region_beats (frames_from_start);
146 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
150 StepEditor::step_editor_hidden (GdkEventAny*)
157 StepEditor::step_editor_hide ()
159 /* everything else will follow the change in the model */
160 _track->set_step_editing (false);
164 StepEditor::stop_step_editing ()
167 step_editor->hide ();
170 if (step_edit_region_view) {
171 step_edit_region_view->hide_step_edit_cursor();
174 step_edit_region.reset ();
178 StepEditor::check_step_edit ()
180 MidiRingBuffer<framepos_t>& incoming (_track->step_edit_ring_buffer());
182 uint32_t bufsize = 32;
184 buf = new uint8_t[bufsize];
186 while (incoming.read_space()) {
188 Evoral::EventType type;
191 incoming.read_prefix (&time, &type, &size);
193 if (size > bufsize) {
196 buf = new uint8_t[bufsize];
199 incoming.read_contents (size, buf);
201 if ((buf[0] & 0xf0) == MIDI_CMD_NOTE_ON) {
202 step_add_note (buf[0] & 0xf, buf[1], buf[2], 0.0);
208 StepEditor::step_add_bank_change (uint8_t /*channel*/, uint8_t /*bank*/)
214 StepEditor::step_add_program_change (uint8_t /*channel*/, uint8_t /*program*/)
220 StepEditor::step_edit_sustain (Evoral::MusicalTime beats)
222 if (step_edit_region_view) {
223 step_edit_region_view->step_sustain (beats);
228 StepEditor::move_step_edit_beat_pos (Evoral::MusicalTime beats)
231 step_edit_beat_pos = min (step_edit_beat_pos + beats,
232 step_edit_region_view->region_frames_to_region_beats (step_edit_region->length()));
233 } else if (beats < 0.0) {
234 if (-beats < step_edit_beat_pos) {
235 step_edit_beat_pos += beats; // its negative, remember
237 step_edit_beat_pos = 0;
240 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
244 StepEditor::step_add_note (uint8_t channel, uint8_t pitch, uint8_t velocity, Evoral::MusicalTime beat_duration)
246 /* do these things in case undo removed the step edit region
248 if (!step_edit_region) {
249 resync_step_edit_position ();
250 prepare_step_edit_region ();
251 reset_step_edit_beat_pos ();
252 step_edit_region_view->show_step_edit_cursor (step_edit_beat_pos);
253 step_edit_region_view->set_step_edit_cursor_width (step_editor->note_length());
256 assert (step_edit_region);
257 assert (step_edit_region_view);
259 if (beat_duration == 0.0) {
261 beat_duration = _editor.get_grid_type_as_beats (success, step_edit_insert_position);
268 MidiStreamView* msv = _mtv.midi_view();
270 /* make sure its visible on the vertical axis */
272 if (pitch < msv->lowest_note() || pitch > msv->highest_note()) {
273 msv->update_note_range (pitch);
274 msv->set_note_range (MidiStreamView::ContentsRange);
277 /* make sure its visible on the horizontal axis */
279 framepos_t fpos = step_edit_region_view->region_beats_to_absolute_frames (step_edit_beat_pos + beat_duration);
281 if (fpos >= (_editor.leftmost_position() + _editor.current_page_frames())) {
282 _editor.reset_x_origin (fpos - (_editor.current_page_frames()/4));
285 Evoral::MusicalTime at = step_edit_beat_pos;
286 Evoral::MusicalTime len = beat_duration;
288 if ((last_added_pitch >= 0) && (pitch == last_added_pitch) && (last_added_end == step_edit_beat_pos)) {
290 /* avoid any apparent note overlap - move the start of this note
291 up by 1 tick from where the last note ended
294 at += 1.0/Timecode::BBT_Time::ticks_per_beat;
295 len -= 1.0/Timecode::BBT_Time::ticks_per_beat;
298 step_edit_region_view->step_add_note (channel, pitch, velocity, at, len);
300 last_added_pitch = pitch;
301 last_added_end = at+len;
303 if (_step_edit_triplet_countdown > 0) {
304 _step_edit_triplet_countdown--;
306 if (_step_edit_triplet_countdown == 0) {
307 _step_edit_triplet_countdown = 3;
311 if (!_step_edit_within_chord) {
312 step_edit_beat_pos += beat_duration;
313 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
315 step_edit_beat_pos += 1.0/Timecode::BBT_Time::ticks_per_beat; // tiny, but no longer overlapping
316 _step_edit_chord_duration = max (_step_edit_chord_duration, beat_duration);
323 StepEditor::set_step_edit_cursor_width (Evoral::MusicalTime beats)
325 if (step_edit_region_view) {
326 step_edit_region_view->set_step_edit_cursor_width (beats);
331 StepEditor::step_edit_within_triplet() const
333 return _step_edit_triplet_countdown > 0;
337 StepEditor::step_edit_within_chord() const
339 return _step_edit_within_chord;
343 StepEditor::step_edit_toggle_triplet ()
345 if (_step_edit_triplet_countdown == 0) {
346 _step_edit_within_chord = false;
347 _step_edit_triplet_countdown = 3;
349 _step_edit_triplet_countdown = 0;
354 StepEditor::step_edit_toggle_chord ()
356 if (_step_edit_within_chord) {
357 _step_edit_within_chord = false;
358 step_edit_beat_pos += _step_edit_chord_duration;
359 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
361 _step_edit_triplet_countdown = 0;
362 _step_edit_within_chord = true;
367 StepEditor::step_edit_rest (Evoral::MusicalTime beats)
372 beats = _editor.get_grid_type_as_beats (success, step_edit_insert_position);
378 step_edit_beat_pos += beats;
379 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
384 StepEditor::step_edit_beat_sync ()
386 step_edit_beat_pos = ceil (step_edit_beat_pos);
387 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
391 StepEditor::step_edit_bar_sync ()
393 Session* _session = _mtv.session ();
395 if (!_session || !step_edit_region_view || !step_edit_region) {
399 framepos_t fpos = step_edit_region_view->region_beats_to_absolute_frames (step_edit_beat_pos);
400 fpos = _session->tempo_map().round_to_bar (fpos, 1);
401 step_edit_beat_pos = ceil (step_edit_region_view->region_frames_to_region_beats (fpos - step_edit_region->position()));
402 step_edit_region_view->move_step_edit_cursor (step_edit_beat_pos);
406 StepEditor::playlist_changed ()
408 step_edit_region_connection.disconnect ();
409 _track->playlist()->RegionRemoved.connect (step_edit_region_connection, invalidator (*this),
410 boost::bind (&StepEditor::region_removed, this, _1),
415 StepEditor::region_removed (boost::weak_ptr<Region> wr)
417 boost::shared_ptr<Region> r (wr.lock());
423 if (step_edit_region == r) {
424 step_edit_region.reset();
425 step_edit_region_view = 0;
426 // force a recompute of the insert position
427 step_edit_beat_pos = -1.0;
432 StepEditor::name() const
434 return _track->name();