gtk2_ardour/midi_streamview.cc

   1 /*
   2     Copyright (C) 2001-2007 Paul Davis
   3
   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.
   8
   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.
  13
  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.
  17 */
  18
  19 #include <cmath>
  20 #include <cassert>
  21 #include <utility>
  22
  23 #include <gtkmm.h>
  24
  25 #include <gtkmm2ext/gtk_ui.h>
  26
  27 #include <ardour/midi_playlist.h>
  28 #include <ardour/midi_region.h>
  29 #include <ardour/midi_source.h>
  30 #include <ardour/midi_diskstream.h>
  31 #include <ardour/midi_track.h>
  32 #include <ardour/midi_events.h>
  33 #include <ardour/smf_source.h>
  34 #include <ardour/region_factory.h>
  35
  36 #include "midi_streamview.h"
  37 #include "region_view.h"
  38 #include "midi_region_view.h"
  39 #include "midi_time_axis.h"
  40 #include "canvas-simplerect.h"
  41 #include "region_selection.h"
  42 #include "selection.h"
  43 #include "public_editor.h"
  44 #include "ardour_ui.h"
  45 #include "rgb_macros.h"
  46 #include "gui_thread.h"
  47 #include "utils.h"
  48 #include "simplerect.h"
  49 #include "simpleline.h"
  50
  51 using namespace std;
  52 using namespace ARDOUR;
  53 using namespace PBD;
  54 using namespace Editing;
  55
  56 MidiStreamView::MidiStreamView (MidiTimeAxisView& tv)
  57         : StreamView (tv)
  58         , _range(ContentsRange)
  59         , _lowest_note(60)
  60         , _highest_note(60)
  61 {
  62         if (tv.is_track())
  63                 stream_base_color = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
  64         else
  65                 stream_base_color = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();
  66
  67         canvas_rect->property_fill_color_rgba() = stream_base_color;
  68         canvas_rect->property_outline_color_rgba() = RGBA_BLACK;
  69
  70         use_rec_regions = tv.editor.show_waveforms_recording ();
  71
  72         _note_line_group = new ArdourCanvas::Group (*canvas_group);
  73
  74         for (uint8_t i=0; i < 127; ++i) {
  75                 _note_lines[i] = new ArdourCanvas::SimpleLine(*_note_line_group,
  76                                 0, note_to_y(i), 10, note_to_y(i));
  77                 _note_lines[i]->property_color_rgba() = 0xEEEEEE55;
  78         }
  79 }
  80
  81 MidiStreamView::~MidiStreamView ()
  82 {
  83 }
  84
  85
  86 RegionView*
  87 MidiStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wfd)
  88 {
  89         boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion> (r);
  90
  91         if (region == 0) {
  92                 return NULL;
  93         }
  94
  95         MidiRegionView *region_view;
  96         list<RegionView *>::iterator i;
  97
  98         for (i = region_views.begin(); i != region_views.end(); ++i) {
  99                 if ((*i)->region() == r) {
 100
 101                         /* great. we already have a MidiRegionView for this Region. use it again. */
 102
 103                         (*i)->set_valid (true);
 104                         (*i)->enable_display(wfd);
 105                         display_region(dynamic_cast<MidiRegionView*>(*i), wfd);
 106
 107                         return NULL;
 108                 }
 109         }
 110
 111         region_view = new MidiRegionView (canvas_group, _trackview, region,
 112                         _samples_per_unit, region_color);
 113
 114         region_view->init (region_color, false);
 115         region_views.push_front (region_view);
 116
 117         /* follow global waveform setting */
 118
 119         if (wfd) {
 120                 region_view->enable_display(true);
 121                 region_view->midi_region()->midi_source(0)->load_model();
 122         }
 123
 124         /* display events and find note range */
 125         display_region(region_view, wfd);
 126
 127         /* always display at least 1 octave range */
 128         _highest_note = max(_highest_note, static_cast<uint8_t>(_lowest_note + 11));
 129
 130         /* catch regionview going away */
 131         region->GoingAway.connect (bind (mem_fun (*this, &MidiStreamView::remove_region_view), region));
 132
 133         RegionViewAdded (region_view);
 134
 135         return region_view;
 136 }
 137
 138 void
 139 MidiStreamView::display_region(MidiRegionView* region_view, bool load_model)
 140 {
 141         if ( ! region_view)
 142                 return;
 143
 144         boost::shared_ptr<MidiSource> source(region_view->midi_region()->midi_source(0));
 145
 146         if (load_model)
 147                 source->load_model();
 148
 149         if (source->model()) {
 150                 // Find our note range
 151                 for (size_t i=0; i < source->model()->n_notes(); ++i) {
 152                         const Note& note = source->model()->note_at(i);
 153                         update_bounds(note.note());
 154                 }
 155         }
 156
 157         // Display region contents
 158         region_view->display_model(source->model());
 159 }
 160
 161 void
 162 MidiStreamView::display_diskstream (boost::shared_ptr<Diskstream> ds)
 163 {
 164         StreamView::display_diskstream(ds);
 165         draw_note_separators();
 166 }
 167
 168 // FIXME: code duplication with AudioStreamView
 169 void
 170 MidiStreamView::redisplay_diskstream ()
 171 {
 172         list<RegionView *>::iterator i, tmp;
 173
 174         for (i = region_views.begin(); i != region_views.end(); ++i) {
 175                 (*i)->enable_display(true); // FIXME: double display, remove
 176                 (*i)->set_valid (false);
 177
 178                 /* FIXME: slow.  MidiRegionView needs a find_note_range method
 179                  * that finds the range without wasting time drawing the events */
 180
 181                 // Load model if it isn't already, to get note range
 182                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*>(*i);
 183                 mrv->midi_region()->midi_source(0)->load_model();
 184         }
 185
 186         //_lowest_note = 60; // middle C
 187         //_highest_note = _lowest_note + 11;
 188
 189         if (_trackview.is_midi_track()) {
 190                 _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
 191         }
 192
 193         /* Always display at least one octave */
 194         if (_highest_note == 127) {
 195                 if (_lowest_note > (127 - 11))
 196                         _lowest_note = 127 - 11;
 197         } else if (_highest_note < _lowest_note + 11) {
 198                 _highest_note = _lowest_note + 11;
 199         }
 200
 201         for (i = region_views.begin(); i != region_views.end(); ) {
 202                 tmp = i;
 203                 tmp++;
 204
 205                 if (!(*i)->is_valid()) {
 206                         delete *i;
 207                         region_views.erase (i);
 208                 } else {
 209                         (*i)->enable_display(true);
 210                         (*i)->set_y_position_and_height(0, height); // apply note range
 211                 }
 212
 213                 i = tmp;
 214         }
 215
 216         /* now fix layering */
 217
 218         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 219                 region_layered (*i);
 220         }
 221
 222         draw_note_separators();
 223 }
 224
 225
 226 void
 227 MidiStreamView::update_contents_y_position_and_height ()
 228 {
 229         StreamView::update_contents_y_position_and_height();
 230         draw_note_separators();
 231 }
 232
 233 void
 234 MidiStreamView::draw_note_separators()
 235 {
 236         for (uint8_t i=0; i < 127; ++i) {
 237                 if (i >= _lowest_note-1 && i <= _highest_note) {
 238                         _note_lines[i]->property_x1() = 0;
 239                         _note_lines[i]->property_x2() = canvas_rect->property_x2() - 2;
 240                         _note_lines[i]->property_y1() = note_to_y(i);
 241                         _note_lines[i]->property_y2() = note_to_y(i);
 242                         _note_lines[i]->show();
 243                 } else {
 244                         _note_lines[i]->hide();
 245                 }
 246         }
 247 }
 248
 249
 250 void
 251 MidiStreamView::set_note_range(VisibleNoteRange r)
 252 {
 253         _range = r;
 254         if (r == FullRange) {
 255                 _lowest_note = 0;
 256                 _highest_note = 127;
 257         } else {
 258                 _lowest_note = 60;
 259                 _highest_note = 60;
 260         }
 261         redisplay_diskstream();
 262 }
 263
 264
 265 void
 266 MidiStreamView::update_bounds(uint8_t note_num)
 267 {
 268         _lowest_note = min(_lowest_note, note_num);
 269         _highest_note = max(_highest_note, note_num);
 270 }
 271
 272
 273 void
 274 MidiStreamView::setup_rec_box ()
 275 {
 276         // cerr << _trackview.name() << " streamview SRB\n";
 277
 278         if (_trackview.session().transport_rolling()) {
 279
 280                 if (!rec_active &&
 281                     _trackview.session().record_status() == Session::Recording &&
 282                     _trackview.get_diskstream()->record_enabled()) {
 283
 284                         if (use_rec_regions && rec_regions.size() == rec_rects.size()) {
 285
 286                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 287
 288                                 MidiRegion::SourceList sources;
 289
 290                                 for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 291                                         (*prc).disconnect();
 292                                 }
 293                                 rec_data_ready_connections.clear();
 294
 295                                 // FIXME
 296                                 boost::shared_ptr<MidiDiskstream> mds = boost::dynamic_pointer_cast<MidiDiskstream>(_trackview.get_diskstream());
 297                                 assert(mds);
 298
 299                                 sources.push_back(mds->write_source());
 300
 301                                 rec_data_ready_connections.push_back (mds->write_source()->ViewDataRangeReady.connect (bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), boost::weak_ptr<Source>(mds->write_source()))));
 302
 303                                 // handle multi
 304
 305                                 jack_nframes_t start = 0;
 306                                 if (rec_regions.size() > 0) {
 307                                         start = rec_regions.back().first->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 308                                 }
 309
 310                                 boost::shared_ptr<MidiRegion> region (boost::dynamic_pointer_cast<MidiRegion>
 311                                         (RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
 312                                 assert(region);
 313                                 region->set_position (_trackview.session().transport_frame(), this);
 314                                 rec_regions.push_back (make_pair(region, (RegionView*)0));
 315
 316                                 // rec regions are destroyed in setup_rec_box
 317
 318                                 /* we add the region later */
 319                         }
 320
 321                         /* start a new rec box */
 322
 323                         boost::shared_ptr<MidiTrack> mt = _trackview.midi_track(); /* we know what it is already */
 324                         boost::shared_ptr<MidiDiskstream> ds = mt->midi_diskstream();
 325                         jack_nframes_t frame_pos = ds->current_capture_start ();
 326                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 327                         gdouble xend;
 328                         uint32_t fill_color;
 329
 330                         assert(_trackview.midi_track()->mode() == Normal);
 331
 332                         xend = xstart;
 333                         fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 334
 335                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 336                         rec_rect->property_x1() = xstart;
 337                         rec_rect->property_y1() = 1.0;
 338                         rec_rect->property_x2() = xend;
 339                         rec_rect->property_y2() = (double) _trackview.height - 1;
 340                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 341                         rec_rect->property_fill_color_rgba() = fill_color;
 342                         rec_rect->lower_to_bottom();
 343
 344                         RecBoxInfo recbox;
 345                         recbox.rectangle = rec_rect;
 346                         recbox.start = _trackview.session().transport_frame();
 347                         recbox.length = 0;
 348
 349                         rec_rects.push_back (recbox);
 350
 351                         screen_update_connection.disconnect();
 352                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &MidiStreamView::update_rec_box));
 353                         rec_updating = true;
 354                         rec_active = true;
 355
 356                 } else if (rec_active &&
 357                            (_trackview.session().record_status() != Session::Recording ||
 358                             !_trackview.get_diskstream()->record_enabled())) {
 359
 360                         screen_update_connection.disconnect();
 361                         rec_active = false;
 362                         rec_updating = false;
 363
 364                 }
 365
 366         } else {
 367
 368                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 369
 370                 if (!rec_rects.empty() || !rec_regions.empty()) {
 371
 372                         /* disconnect rapid update */
 373                         screen_update_connection.disconnect();
 374
 375                         for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 376                                 (*prc).disconnect();
 377                         }
 378                         rec_data_ready_connections.clear();
 379
 380                         rec_updating = false;
 381                         rec_active = false;
 382
 383                         /* remove temp regions */
 384
 385                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end();) {
 386                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 387
 388                                 tmp = iter;
 389                                 ++tmp;
 390
 391                                 (*iter).first->drop_references ();
 392
 393                                 iter = tmp;
 394                         }
 395
 396                         rec_regions.clear();
 397
 398                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 399
 400                         /* transport stopped, clear boxes */
 401                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 402                                 RecBoxInfo &rect = (*iter);
 403                                 delete rect.rectangle;
 404                         }
 405
 406                         rec_rects.clear();
 407
 408                 }
 409         }
 410 }
 411
 412 void
 413 MidiStreamView::update_rec_regions (boost::shared_ptr<MidiModel> data, nframes_t start, nframes_t dur)
 414 {
 415         ENSURE_GUI_THREAD (bind (mem_fun (*this, &MidiStreamView::update_rec_regions), data, start, dur));
 416
 417         if (use_rec_regions) {
 418
 419                 uint32_t n = 0;
 420                 bool     update_range = false;
 421
 422                 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 423
 424                         list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 425
 426                         tmp = iter;
 427                         ++tmp;
 428
 429                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 430                                 /* rect already hidden, this region is done */
 431                                 iter = tmp;
 432                                 continue;
 433                         }
 434
 435                         boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion>(iter->first);
 436                         if (!region) {
 437                                 continue;
 438                         }
 439
 440                         nframes_t origlen = region->length();
 441
 442                         //cerr << "MIDI URR: " << start << " * " << dur
 443                         //      << " (origlen " << origlen << ")" << endl;
 444
 445                         if (region == rec_regions.back().first && rec_active) {
 446
 447                                 if (start >= region->start()) {
 448
 449                                         nframes_t nlen = start + dur - region->start();
 450
 451                                         if (nlen != region->length()) {
 452
 453                                                 region->freeze ();
 454                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 455                                                 region->set_length (nlen, this);
 456                                                 region->thaw ("updated");
 457
 458                                                 if (origlen == 1) {
 459                                                         /* our special initial length */
 460                                                         iter->second = add_region_view_internal (region, false);
 461                                                         ((MidiRegionView*)iter->second)->begin_write();
 462                                                 }
 463
 464                                                 /* also update rect */
 465                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 466                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 467                                                 rect->property_x2() = xend;
 468
 469                                                 /* draw events */
 470                                                 MidiRegionView* mrv = (MidiRegionView*)iter->second;
 471                                                 // FIXME: slow
 472                                                 for (size_t i=0; i < data->n_notes(); ++i) {
 473                                                         const Note& note = data->note_at(i);
 474                                                         if (note.time() > start + dur)
 475                                                                 break;
 476
 477                                                         if (note.time() >= start)
 478                                                                 mrv->add_note(note, true);
 479
 480                                                         if (note.duration() > 0 && note.end_time() >= start)
 481                                                                 mrv->resolve_note(note.note(), note.end_time());
 482
 483                                                         if (note.note() < _lowest_note) {
 484                                                                 _lowest_note = note.note();
 485                                                                 update_range = true;
 486                                                         } else if (note.note() > _highest_note) {
 487                                                                 _highest_note = note.note();
 488                                                                 update_range = true;
 489                                                         }
 490                                                 }
 491
 492                                                 mrv->extend_active_notes();
 493
 494                                         }
 495                                 }
 496
 497                         } else {
 498
 499                                 nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 500
 501                                 if (nlen != region->length()) {
 502
 503                                         if (region->source(0)->length() >= region->start() + nlen) {
 504
 505                                                 region->freeze ();
 506                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 507                                                 region->set_length (nlen, this);
 508                                                 region->thaw ("updated");
 509
 510                                                 if (origlen == 1) {
 511                                                         /* our special initial length */
 512                                                         iter->second = add_region_view_internal (region, false);
 513                                                 }
 514
 515                                                 /* also hide rect */
 516                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 517                                                 rect->hide();
 518
 519                                         }
 520                                 }
 521                         }
 522
 523                         iter = tmp;
 524                 }
 525
 526                 if (update_range)
 527                         update_contents_y_position_and_height();
 528         }
 529 }
 530
 531 void
 532 MidiStreamView::rec_data_range_ready (jack_nframes_t start, jack_nframes_t dur, boost::weak_ptr<Source> weak_src)
 533 {
 534         // this is called from the butler thread for now
 535
 536         ENSURE_GUI_THREAD(bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), start, dur, weak_src));
 537
 538         boost::shared_ptr<SMFSource> src (boost::dynamic_pointer_cast<SMFSource>(weak_src.lock()));
 539
 540         //cerr << src.get() << " MIDI READY: " << start << " * " << dur
 541         //      << " -- " << data->size() << " events!" << endl;
 542
 543         this->update_rec_regions (src->model(), start, dur);
 544 }
 545
 546 void
 547 MidiStreamView::color_handler ()
 548 {
 549
 550         //case cMidiTrackBase:
 551         if (_trackview.is_midi_track()) {
 552                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
 553         }
 554
 555         //case cMidiBusBase:
 556         if (!_trackview.is_midi_track()) {
 557                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();;
 558         }
 559 }
 560