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         // Find our note range
 150         if (source->model())
 151                 for (size_t i=0; i < source->model()->n_notes(); ++i)
 152                         update_bounds(source->model()->note_at(i)->note());
 153
 154         // Display region contents
 155         region_view->display_model(source->model());
 156 }
 157
 158 void
 159 MidiStreamView::display_diskstream (boost::shared_ptr<Diskstream> ds)
 160 {
 161         StreamView::display_diskstream(ds);
 162         draw_note_separators();
 163 }
 164
 165 // FIXME: code duplication with AudioStreamView
 166 void
 167 MidiStreamView::redisplay_diskstream ()
 168 {
 169         list<RegionView *>::iterator i, tmp;
 170
 171         for (i = region_views.begin(); i != region_views.end(); ++i) {
 172                 (*i)->enable_display(true); // FIXME: double display, remove
 173                 (*i)->set_valid (false);
 174
 175                 /* FIXME: slow.  MidiRegionView needs a find_note_range method
 176                  * that finds the range without wasting time drawing the events */
 177
 178                 // Load model if it isn't already, to get note range
 179                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*>(*i);
 180                 mrv->midi_region()->midi_source(0)->load_model();
 181         }
 182
 183         //_lowest_note = 60; // middle C
 184         //_highest_note = _lowest_note + 11;
 185
 186         if (_trackview.is_midi_track()) {
 187                 _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
 188         }
 189
 190         /* Always display at least one octave */
 191         if (_highest_note == 127) {
 192                 if (_lowest_note > (127 - 11))
 193                         _lowest_note = 127 - 11;
 194         } else if (_highest_note < _lowest_note + 11) {
 195                 _highest_note = _lowest_note + 11;
 196         }
 197
 198         for (i = region_views.begin(); i != region_views.end(); ) {
 199                 tmp = i;
 200                 tmp++;
 201
 202                 if (!(*i)->is_valid()) {
 203                         delete *i;
 204                         region_views.erase (i);
 205                 } else {
 206                         (*i)->enable_display(true);
 207                         (*i)->set_y_position_and_height(0, height); // apply note range
 208                 }
 209
 210                 i = tmp;
 211         }
 212
 213         /* now fix layering */
 214
 215         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 216                 region_layered (*i);
 217         }
 218
 219         draw_note_separators();
 220 }
 221
 222
 223 void
 224 MidiStreamView::update_contents_y_position_and_height ()
 225 {
 226         StreamView::update_contents_y_position_and_height();
 227         draw_note_separators();
 228 }
 229
 230 void
 231 MidiStreamView::draw_note_separators()
 232 {
 233         for (uint8_t i=0; i < 127; ++i) {
 234                 if (i >= _lowest_note-1 && i <= _highest_note) {
 235                         _note_lines[i]->property_x1() = 0;
 236                         _note_lines[i]->property_x2() = canvas_rect->property_x2() - 2;
 237                         _note_lines[i]->property_y1() = note_to_y(i);
 238                         _note_lines[i]->property_y2() = note_to_y(i);
 239                         _note_lines[i]->show();
 240                 } else {
 241                         _note_lines[i]->hide();
 242                 }
 243         }
 244 }
 245
 246
 247 void
 248 MidiStreamView::set_note_range(VisibleNoteRange r)
 249 {
 250         _range = r;
 251         if (r == FullRange) {
 252                 _lowest_note = 0;
 253                 _highest_note = 127;
 254         } else {
 255                 _lowest_note = 60;
 256                 _highest_note = 60;
 257         }
 258         redisplay_diskstream();
 259 }
 260
 261
 262 void
 263 MidiStreamView::update_bounds(uint8_t note_num)
 264 {
 265         _lowest_note = min(_lowest_note, note_num);
 266         _highest_note = max(_highest_note, note_num);
 267 }
 268
 269
 270 void
 271 MidiStreamView::setup_rec_box ()
 272 {
 273         // cerr << _trackview.name() << " streamview SRB\n";
 274
 275         if (_trackview.session().transport_rolling()) {
 276
 277                 if (!rec_active &&
 278                     _trackview.session().record_status() == Session::Recording &&
 279                     _trackview.get_diskstream()->record_enabled()) {
 280
 281                         if (use_rec_regions && rec_regions.size() == rec_rects.size()) {
 282
 283                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 284
 285                                 MidiRegion::SourceList sources;
 286
 287                                 for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 288                                         (*prc).disconnect();
 289                                 }
 290                                 rec_data_ready_connections.clear();
 291
 292                                 // FIXME
 293                                 boost::shared_ptr<MidiDiskstream> mds = boost::dynamic_pointer_cast<MidiDiskstream>(_trackview.get_diskstream());
 294                                 assert(mds);
 295
 296                                 sources.push_back(mds->write_source());
 297
 298                                 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()))));
 299
 300                                 // handle multi
 301
 302                                 jack_nframes_t start = 0;
 303                                 if (rec_regions.size() > 0) {
 304                                         start = rec_regions.back().first->position() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 305                                 }
 306
 307                                 boost::shared_ptr<MidiRegion> region (boost::dynamic_pointer_cast<MidiRegion>
 308                                         (RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
 309                                 assert(region);
 310                                 region->set_position (_trackview.session().transport_frame(), this);
 311                                 rec_regions.push_back (make_pair(region, (RegionView*)0));
 312
 313                                 // rec regions are destroyed in setup_rec_box
 314
 315                                 /* we add the region later */
 316                         }
 317
 318                         /* start a new rec box */
 319
 320                         boost::shared_ptr<MidiTrack> mt = _trackview.midi_track(); /* we know what it is already */
 321                         boost::shared_ptr<MidiDiskstream> ds = mt->midi_diskstream();
 322                         jack_nframes_t frame_pos = ds->current_capture_start ();
 323                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 324                         gdouble xend;
 325                         uint32_t fill_color;
 326
 327                         assert(_trackview.midi_track()->mode() == Normal);
 328
 329                         xend = xstart;
 330                         fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 331
 332                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 333                         rec_rect->property_x1() = xstart;
 334                         rec_rect->property_y1() = 1.0;
 335                         rec_rect->property_x2() = xend;
 336                         rec_rect->property_y2() = (double) _trackview.height - 1;
 337                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 338                         rec_rect->property_fill_color_rgba() = fill_color;
 339                         rec_rect->lower_to_bottom();
 340
 341                         RecBoxInfo recbox;
 342                         recbox.rectangle = rec_rect;
 343                         recbox.start = _trackview.session().transport_frame();
 344                         recbox.length = 0;
 345
 346                         rec_rects.push_back (recbox);
 347
 348                         screen_update_connection.disconnect();
 349                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &MidiStreamView::update_rec_box));
 350                         rec_updating = true;
 351                         rec_active = true;
 352
 353                 } else if (rec_active &&
 354                            (_trackview.session().record_status() != Session::Recording ||
 355                             !_trackview.get_diskstream()->record_enabled())) {
 356
 357                         screen_update_connection.disconnect();
 358                         rec_active = false;
 359                         rec_updating = false;
 360
 361                 }
 362
 363         } else {
 364
 365                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 366
 367                 if (!rec_rects.empty() || !rec_regions.empty()) {
 368
 369                         /* disconnect rapid update */
 370                         screen_update_connection.disconnect();
 371
 372                         for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 373                                 (*prc).disconnect();
 374                         }
 375                         rec_data_ready_connections.clear();
 376
 377                         rec_updating = false;
 378                         rec_active = false;
 379
 380                         /* remove temp regions */
 381
 382                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end();) {
 383                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 384
 385                                 tmp = iter;
 386                                 ++tmp;
 387
 388                                 (*iter).first->drop_references ();
 389
 390                                 iter = tmp;
 391                         }
 392
 393                         rec_regions.clear();
 394
 395                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 396
 397                         /* transport stopped, clear boxes */
 398                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 399                                 RecBoxInfo &rect = (*iter);
 400                                 delete rect.rectangle;
 401                         }
 402
 403                         rec_rects.clear();
 404
 405                 }
 406         }
 407 }
 408
 409 void
 410 MidiStreamView::update_rec_regions (boost::shared_ptr<MidiModel> data, nframes_t start, nframes_t dur)
 411 {
 412         ENSURE_GUI_THREAD (bind (mem_fun (*this, &MidiStreamView::update_rec_regions), data, start, dur));
 413
 414         if (use_rec_regions) {
 415
 416                 uint32_t n = 0;
 417                 bool     update_range = false;
 418
 419                 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 420
 421                         list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 422
 423                         tmp = iter;
 424                         ++tmp;
 425
 426                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 427                                 /* rect already hidden, this region is done */
 428                                 iter = tmp;
 429                                 continue;
 430                         }
 431
 432                         boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion>(iter->first);
 433                         if (!region) {
 434                                 continue;
 435                         }
 436
 437                         nframes_t origlen = region->length();
 438
 439                         if (region == rec_regions.back().first && rec_active) {
 440
 441                                 if (start >= region->midi_source(0)->timeline_position()) {
 442
 443                                         nframes_t nlen = start + dur - region->position();
 444
 445                                         if (nlen != region->length()) {
 446
 447                                                 region->freeze ();
 448                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 449                                                 region->set_length (start + dur - region->position(), this);
 450                                                 region->thaw ("updated");
 451
 452                                                 if (origlen == 1) {
 453                                                         /* our special initial length */
 454                                                         iter->second = add_region_view_internal (region, false);
 455                                                         ((MidiRegionView*)iter->second)->begin_write();
 456                                                 }
 457
 458                                                 /* also update rect */
 459                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 460                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 461                                                 rect->property_x2() = xend;
 462
 463                                                 /* draw events */
 464                                                 MidiRegionView* mrv = (MidiRegionView*)iter->second;
 465                                                 for (size_t i=0; i < data->n_notes(); ++i) {
 466
 467                                                         // FIXME: slooooooooow!
 468
 469                                                         const boost::shared_ptr<Note> note = data->note_at(i);
 470
 471                                                         if (note->duration() > 0 && note->end_time() + region->position() > start)
 472                                                                 mrv->resolve_note(note->note(), note->end_time());
 473
 474                                                         if (note->time() + region->position() < start)
 475                                                                 continue;
 476
 477                                                         if (note->time() + region->position() > start + dur)
 478                                                                 break;
 479
 480                                                         mrv->add_note(note);
 481
 482                                                         if (note->note() < _lowest_note) {
 483                                                                 _lowest_note = note->note();
 484                                                                 update_range = true;
 485                                                         } else if (note->note() > _highest_note) {
 486                                                                 _highest_note = note->note();
 487                                                                 update_range = true;
 488                                                         }
 489                                                 }
 490
 491                                                 mrv->extend_active_notes();
 492                                         }
 493                                 }
 494
 495                         } else {
 496
 497                                 nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 498
 499                                 if (nlen != region->length()) {
 500
 501                                         if (region->source(0)->length() >= region->position() + nlen) {
 502
 503                                                 region->freeze ();
 504                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 505                                                 region->set_length (nlen, this);
 506                                                 region->thaw ("updated");
 507
 508                                                 if (origlen == 1) {
 509                                                         /* our special initial length */
 510                                                         iter->second = add_region_view_internal (region, false);
 511                                                 }
 512
 513                                                 /* also hide rect */
 514                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 515                                                 rect->hide();
 516
 517                                         }
 518                                 }
 519                         }
 520
 521                         iter = tmp;
 522                 }
 523
 524                 if (update_range)
 525                         update_contents_y_position_and_height();
 526         }
 527 }
 528
 529 void
 530 MidiStreamView::rec_data_range_ready (jack_nframes_t start, jack_nframes_t dur, boost::weak_ptr<Source> weak_src)
 531 {
 532         // this is called from the butler thread for now
 533
 534         ENSURE_GUI_THREAD(bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), start, dur, weak_src));
 535
 536         boost::shared_ptr<SMFSource> src (boost::dynamic_pointer_cast<SMFSource>(weak_src.lock()));
 537
 538         this->update_rec_regions (src->model(), start, dur);
 539 }
 540
 541 void
 542 MidiStreamView::color_handler ()
 543 {
 544
 545         //case cMidiTrackBase:
 546         if (_trackview.is_midi_track()) {
 547                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
 548         }
 549
 550         //case cMidiBusBase:
 551         if (!_trackview.is_midi_track()) {
 552                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();;
 553         }
 554 }
 555