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_diskstream.h"
  28 #include "ardour/midi_playlist.h"
  29 #include "ardour/midi_region.h"
  30 #include "ardour/midi_source.h"
  31 #include "ardour/midi_track.h"
  32 #include "ardour/region_factory.h"
  33 #include "ardour/smf_source.h"
  34
  35 #include "ardour_ui.h"
  36 #include "canvas-simplerect.h"
  37 #include "gui_thread.h"
  38 #include "lineset.h"
  39 #include "midi_region_view.h"
  40 #include "midi_streamview.h"
  41 #include "midi_time_axis.h"
  42 #include "midi_util.h"
  43 #include "public_editor.h"
  44 #include "region_selection.h"
  45 #include "region_view.h"
  46 #include "rgb_macros.h"
  47 #include "selection.h"
  48 #include "simplerect.h"
  49 #include "utils.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         , note_range_adjustment(0.0f, 0.0f, 0.0f)
  59         , _range_dirty(false)
  60         , _range_sum_cache(-1.0)
  61         , _lowest_note(60)
  62         , _highest_note(71)
  63         , _data_note_min(60)
  64         , _data_note_max(71)
  65 {
  66         if (tv.is_track()) {
  67                 stream_base_color = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
  68         } else {
  69                 stream_base_color = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();
  70         }
  71
  72         use_rec_regions = tv.editor().show_waveforms_recording ();
  73
  74         /* use a group dedicated to MIDI underlays. Audio underlays are not in this group. */
  75         midi_underlay_group = new ArdourCanvas::Group (*canvas_group);
  76         midi_underlay_group->lower_to_bottom();
  77
  78         /* put the note lines in the timeaxisview's group, so it
  79            can be put below ghost regions from MIDI underlays*/
  80         _note_lines = new ArdourCanvas::LineSet(*canvas_group, ArdourCanvas::LineSet::Horizontal);
  81
  82         _note_lines->property_x1() = 0;
  83         _note_lines->property_y1() = 0;
  84         _note_lines->property_x2() = trackview().editor().frame_to_pixel (max_frames);
  85         _note_lines->property_y2() = 0;
  86
  87         _note_lines->signal_event().connect(bind(
  88                         mem_fun(_trackview.editor(), &PublicEditor::canvas_stream_view_event),
  89                         _note_lines, &_trackview));
  90
  91         _note_lines->lower_to_bottom();
  92
  93         ColorsChanged.connect(mem_fun(*this, &MidiStreamView::draw_note_lines));
  94
  95         note_range_adjustment.set_page_size(_highest_note - _lowest_note);
  96         note_range_adjustment.set_value(_lowest_note);
  97
  98         note_range_adjustment.signal_value_changed().connect(
  99                         mem_fun(*this, &MidiStreamView::note_range_adjustment_changed));
 100 }
 101
 102 MidiStreamView::~MidiStreamView ()
 103 {
 104 }
 105
 106 static void
 107 veto_note_range(uint8_t& min, uint8_t& max)
 108 {
 109         /* Legal notes, thanks */
 110         clamp_to_0_127(min);
 111         clamp_to_0_127(max);
 112
 113         /* Always display at least one octave in [0, 127] */
 114         if (max == 127) {
 115                 if (min > (127 - 11)) {
 116                         min = 127 - 11;
 117                 }
 118         } else if (max < min + 11) {
 119                 uint8_t d = 11 - (max - min);
 120                 if (max + d/2 > 127) {
 121                         min -= d;
 122                 } else {
 123                         min -= d / 2;
 124                         max += d / 2;
 125                 }
 126         }
 127         assert(max - min >= 11);
 128         assert(max <= 127);
 129         assert(min <= 127);
 130 }
 131
 132 RegionView*
 133 MidiStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wfd, bool recording)
 134 {
 135         boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion> (r);
 136
 137         if (region == 0) {
 138                 return NULL;
 139         }
 140
 141         MidiRegionView *region_view;
 142         list<RegionView *>::iterator i;
 143
 144         for (i = region_views.begin(); i != region_views.end(); ++i) {
 145                 if ((*i)->region() == r) {
 146
 147                         /* great. we already have a MidiRegionView for this Region. use it again. */
 148
 149                         (*i)->set_valid (true);
 150
 151                         display_region(dynamic_cast<MidiRegionView*>(*i), wfd);
 152
 153                         return NULL;
 154                 }
 155         }
 156
 157         region_view = new MidiRegionView (canvas_group, _trackview, region,
 158                         _samples_per_unit, region_color);
 159
 160         region_view->init (region_color, false);
 161         region_views.push_front (region_view);
 162
 163         /* display events and find note range */
 164         display_region(region_view, wfd);
 165
 166         /* catch regionview going away */
 167         region->GoingAway.connect (bind (mem_fun (*this, &MidiStreamView::remove_region_view), region));
 168
 169         RegionViewAdded (region_view);
 170
 171         return region_view;
 172 }
 173
 174 void
 175 MidiStreamView::display_region(MidiRegionView* region_view, bool load_model)
 176 {
 177         if ( ! region_view)
 178                 return;
 179
 180         region_view->enable_display(true);
 181
 182         boost::shared_ptr<MidiSource> source(region_view->midi_region()->midi_source(0));
 183
 184         if (load_model) {
 185                 source->load_model();
 186         }
 187
 188         _range_dirty = update_data_note_range(
 189                         source->model()->lowest_note(),
 190                         source->model()->highest_note());
 191
 192         // Display region contents
 193         region_view->set_height(height);
 194         region_view->display_model(source->model());
 195 }
 196
 197 void
 198 MidiStreamView::display_diskstream (boost::shared_ptr<Diskstream> ds)
 199 {
 200         StreamView::display_diskstream(ds);
 201         draw_note_lines();
 202         NoteRangeChanged();
 203 }
 204
 205 void
 206 MidiStreamView::update_contents_metrics(boost::shared_ptr<Region> r)
 207 {
 208         boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(r);
 209         if (mr) {
 210                 mr->midi_source(0)->load_model();
 211                 _range_dirty = update_data_note_range(
 212                                 mr->model()->lowest_note(),
 213                                 mr->model()->highest_note());
 214         }
 215 }
 216
 217 bool
 218 MidiStreamView::update_data_note_range(uint8_t min, uint8_t max)
 219 {
 220         bool dirty = false;
 221         if (min < _data_note_min) {
 222                 _data_note_min = min;
 223                 dirty = true;
 224         }
 225         if (max > _data_note_max) {
 226                 _data_note_max = max;
 227                 dirty = true;
 228         }
 229         return dirty;
 230 }
 231
 232 void
 233 MidiStreamView::redisplay_diskstream ()
 234 {
 235         if (!_trackview.is_midi_track()) {
 236                 return;
 237         }
 238
 239         list<RegionView*>::iterator i;
 240
 241         // Load models if necessary, and find note range of all our contents
 242         _range_dirty = false;
 243         _data_note_min = 127;
 244         _data_note_max = 0;
 245         _trackview.get_diskstream()->playlist()->foreach_region(
 246                         static_cast<StreamView*>(this),
 247                         &StreamView::update_contents_metrics);
 248
 249         // No notes, use default range
 250         if (!_range_dirty) {
 251                 _data_note_min = 60;
 252                 _data_note_max = 71;
 253         }
 254
 255         // Extend visible range to show newly recorded data, if necessary
 256         _lowest_note  = std::min(_lowest_note, _data_note_min);
 257         _highest_note = std::max(_highest_note, _data_note_max);
 258
 259         veto_note_range(_lowest_note, _highest_note);
 260
 261         // Flag region views as invalid and disable drawing
 262         for (i = region_views.begin(); i != region_views.end(); ++i) {
 263                 (*i)->set_valid(false);
 264                 (*i)->enable_display(false);
 265         }
 266
 267         // Add and display region views, and flag them as valid
 268         _trackview.get_diskstream()->playlist()->foreach_region(
 269                         static_cast<StreamView*>(this),
 270                         &StreamView::add_region_view);
 271
 272         // Stack regions by layer, and remove invalid regions
 273         layer_regions();
 274
 275         // Update note range (not regions which are correct) and draw note lines
 276         apply_note_range(_lowest_note, _highest_note, false);
 277 }
 278
 279
 280 void
 281 MidiStreamView::update_contents_height ()
 282 {
 283         StreamView::update_contents_height();
 284         _note_lines->property_y2() = height;
 285         draw_note_lines();
 286 }
 287
 288 void
 289 MidiStreamView::draw_note_lines()
 290 {
 291         double y;
 292         double prev_y = contents_height();
 293         uint32_t color;
 294
 295         _note_lines->clear();
 296
 297         for (int i = lowest_note(); i <= highest_note(); ++i) {
 298                 y = floor(note_to_y(i));
 299
 300                 _note_lines->add_line(prev_y, 1.0, ARDOUR_UI::config()->canvasvar_PianoRollBlackOutline.get());
 301
 302                 switch (i % 12) {
 303                 case 1:
 304                 case 3:
 305                 case 6:
 306                 case 8:
 307                 case 10:
 308                         color = ARDOUR_UI::config()->canvasvar_PianoRollBlack.get();
 309                         break;
 310                 default:
 311                         color = ARDOUR_UI::config()->canvasvar_PianoRollWhite.get();
 312                         break;
 313                 }
 314
 315                 if (i == highest_note()) {
 316                         _note_lines->add_line(y, prev_y - y, color);
 317                 } else {
 318                         _note_lines->add_line(y + 1.0, prev_y - y - 1.0, color);
 319                 }
 320
 321                 prev_y = y;
 322         }
 323 }
 324
 325 void
 326 MidiStreamView::set_note_range(VisibleNoteRange r)
 327 {
 328         if (r == FullRange) {
 329                 _lowest_note = 0;
 330                 _highest_note = 127;
 331         } else {
 332                 _lowest_note = _data_note_min;
 333                 _highest_note = _data_note_max;
 334         }
 335
 336         apply_note_range(_lowest_note, _highest_note, true);
 337 }
 338
 339 void
 340 MidiStreamView::apply_note_range(uint8_t lowest, uint8_t highest, bool to_region_views)
 341 {
 342         _highest_note = highest;
 343         _lowest_note = lowest;
 344         note_range_adjustment.set_page_size(_highest_note - _lowest_note);
 345         note_range_adjustment.set_value(_lowest_note);
 346         draw_note_lines();
 347
 348         if (to_region_views) {
 349                 for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 350                         ((MidiRegionView*)(*i))->apply_note_range(lowest, highest);
 351                 }
 352         }
 353
 354         NoteRangeChanged();
 355 }
 356
 357 void
 358 MidiStreamView::update_note_range(uint8_t note_num)
 359 {
 360         assert(note_num <= 127);
 361         _data_note_min = min(_data_note_min, note_num);
 362         _data_note_max = max(_data_note_max, note_num);
 363 }
 364
 365 void
 366 MidiStreamView::setup_rec_box ()
 367 {
 368         // cerr << _trackview.name() << " streamview SRB\n";
 369
 370         if (_trackview.session().transport_rolling()) {
 371
 372                 if (!rec_active &&
 373                     _trackview.session().record_status() == Session::Recording &&
 374                     _trackview.get_diskstream()->record_enabled()) {
 375
 376                         if (use_rec_regions && rec_regions.size() == rec_rects.size()) {
 377
 378                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 379
 380                                 MidiRegion::SourceList sources;
 381
 382                                 for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 383                                         (*prc).disconnect();
 384                                 }
 385                                 rec_data_ready_connections.clear();
 386
 387                                 // FIXME
 388                                 boost::shared_ptr<MidiDiskstream> mds = boost::dynamic_pointer_cast<MidiDiskstream>(_trackview.get_diskstream());
 389                                 assert(mds);
 390
 391                                 sources.push_back(mds->write_source());
 392
 393                                 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()))));
 394
 395                                 // handle multi
 396
 397                                 jack_nframes_t start = 0;
 398                                 if (rec_regions.size() > 0) {
 399                                         start = rec_regions.back().first->position() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 400                                 }
 401
 402                                 boost::shared_ptr<MidiRegion> region (boost::dynamic_pointer_cast<MidiRegion>
 403                                         (RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
 404                                 assert(region);
 405                                 region->set_position (_trackview.session().transport_frame(), this);
 406                                 rec_regions.push_back (make_pair(region, (RegionView*)0));
 407
 408                                 // rec regions are destroyed in setup_rec_box
 409
 410                                 /* we add the region later */
 411                         }
 412
 413                         /* start a new rec box */
 414
 415                         boost::shared_ptr<MidiTrack> mt = _trackview.midi_track(); /* we know what it is already */
 416                         boost::shared_ptr<MidiDiskstream> ds = mt->midi_diskstream();
 417                         jack_nframes_t frame_pos = ds->current_capture_start ();
 418                         gdouble xstart = _trackview.editor().frame_to_pixel (frame_pos);
 419                         gdouble xend;
 420                         uint32_t fill_color;
 421
 422                         assert(_trackview.midi_track()->mode() == Normal);
 423
 424                         xend = xstart;
 425                         fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 426
 427                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 428                         rec_rect->property_x1() = xstart;
 429                         rec_rect->property_y1() = 1.0;
 430                         rec_rect->property_x2() = xend;
 431                         rec_rect->property_y2() = (double) _trackview.current_height() - 1;
 432                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 433                         rec_rect->property_fill_color_rgba() = fill_color;
 434                         rec_rect->lower_to_bottom();
 435
 436                         RecBoxInfo recbox;
 437                         recbox.rectangle = rec_rect;
 438                         recbox.start = _trackview.session().transport_frame();
 439                         recbox.length = 0;
 440
 441                         rec_rects.push_back (recbox);
 442
 443                         screen_update_connection.disconnect();
 444                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &MidiStreamView::update_rec_box));
 445                         rec_updating = true;
 446                         rec_active = true;
 447
 448                 } else if (rec_active &&
 449                            (_trackview.session().record_status() != Session::Recording ||
 450                             !_trackview.get_diskstream()->record_enabled())) {
 451
 452                         screen_update_connection.disconnect();
 453                         rec_active = false;
 454                         rec_updating = false;
 455
 456                 }
 457
 458         } else {
 459
 460                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 461
 462                 if (!rec_rects.empty() || !rec_regions.empty()) {
 463
 464                         /* disconnect rapid update */
 465                         screen_update_connection.disconnect();
 466
 467                         for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 468                                 (*prc).disconnect();
 469                         }
 470                         rec_data_ready_connections.clear();
 471
 472                         rec_updating = false;
 473                         rec_active = false;
 474
 475                         /* remove temp regions */
 476
 477                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end();) {
 478                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 479
 480                                 tmp = iter;
 481                                 ++tmp;
 482
 483                                 (*iter).first->drop_references ();
 484
 485                                 iter = tmp;
 486                         }
 487
 488                         rec_regions.clear();
 489
 490                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 491
 492                         /* transport stopped, clear boxes */
 493                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 494                                 RecBoxInfo &rect = (*iter);
 495                                 delete rect.rectangle;
 496                         }
 497
 498                         rec_rects.clear();
 499
 500                 }
 501         }
 502 }
 503
 504 void
 505 MidiStreamView::update_rec_regions (boost::shared_ptr<MidiModel> data, nframes_t start, nframes_t dur)
 506 {
 507         ENSURE_GUI_THREAD (bind (mem_fun (*this, &MidiStreamView::update_rec_regions), data, start, dur));
 508
 509         if (use_rec_regions) {
 510
 511                 uint32_t n = 0;
 512                 bool     update_range = false;
 513
 514                 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 515
 516                         list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 517
 518                         tmp = iter;
 519                         ++tmp;
 520
 521                         boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion>(iter->first);
 522                         if (!region || !iter->second) {
 523                                 iter = tmp;
 524                                 continue;
 525                         }
 526
 527                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 528                                 /* rect already hidden, this region is done */
 529                                 iter = tmp;
 530                                 continue;
 531                         }
 532
 533                         nframes_t origlen = region->length();
 534
 535                         if (region == rec_regions.back().first && rec_active) {
 536
 537                                 if (start >= region->midi_source(0)->timeline_position()) {
 538
 539                                         nframes_t nlen = start + dur - region->position();
 540
 541                                         if (nlen != region->length()) {
 542
 543                                                 region->freeze ();
 544                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 545                                                 region->set_length (start + dur - region->position(), this);
 546                                                 region->thaw ("updated");
 547
 548                                                 if (origlen == 1) {
 549                                                         /* our special initial length */
 550                                                         iter->second = add_region_view_internal (region, false);
 551                                                         ((MidiRegionView*)iter->second)->begin_write();
 552                                                 }
 553
 554                                                 /* also update rect */
 555                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 556                                                 gdouble xend = _trackview.editor().frame_to_pixel (region->position() + region->length());
 557                                                 rect->property_x2() = xend;
 558
 559                                                 /* draw events */
 560                                                 MidiRegionView* mrv = (MidiRegionView*)iter->second;
 561                                                 for (size_t i=0; i < data->n_notes(); ++i) {
 562
 563                                                         // FIXME: slooooooooow!
 564
 565                                                         const boost::shared_ptr<MidiRegionView::NoteType> note = data->note_at(i);
 566
 567                                                         if (note->length() > 0 && note->end_time() + region->position() > start)
 568                                                                 mrv->resolve_note(note->note(), note->end_time());
 569
 570                                                         if (note->time() + region->position() < start)
 571                                                                 continue;
 572
 573                                                         if (note->time() + region->position() > start + dur)
 574                                                                 break;
 575
 576                                                         mrv->add_note(note);
 577
 578                                                         if (note->note() < _lowest_note) {
 579                                                                 _lowest_note = note->note();
 580                                                                 update_range = true;
 581                                                         } else if (note->note() > _highest_note) {
 582                                                                 _highest_note = note->note();
 583                                                                 update_range = true;
 584                                                         }
 585                                                 }
 586
 587                                                 mrv->extend_active_notes();
 588                                         }
 589                                 }
 590
 591                         } else {
 592
 593                                 nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 594
 595                                 if (nlen != region->length()) {
 596
 597                                         if (region->source_length(0) >= region->position() + nlen) {
 598
 599                                                 region->freeze ();
 600                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 601                                                 region->set_length (nlen, this);
 602                                                 region->thaw ("updated");
 603
 604                                                 if (origlen == 1) {
 605                                                         /* our special initial length */
 606                                                         iter->second = add_region_view_internal (region, false);
 607                                                 }
 608
 609                                                 /* also hide rect */
 610                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 611                                                 rect->hide();
 612
 613                                         }
 614                                 }
 615                         }
 616
 617                         iter = tmp;
 618                 }
 619
 620                 if (update_range)
 621                         update_contents_height();
 622         }
 623 }
 624
 625 void
 626 MidiStreamView::rec_data_range_ready (jack_nframes_t start, jack_nframes_t dur, boost::weak_ptr<Source> weak_src)
 627 {
 628         // this is called from the butler thread for now
 629
 630         ENSURE_GUI_THREAD(bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), start, dur, weak_src));
 631
 632         boost::shared_ptr<SMFSource> src (boost::dynamic_pointer_cast<SMFSource>(weak_src.lock()));
 633
 634         this->update_rec_regions (src->model(), start, dur);
 635 }
 636
 637 void
 638 MidiStreamView::color_handler ()
 639 {
 640         //case cMidiTrackBase:
 641         if (_trackview.is_midi_track()) {
 642                 //canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
 643         }
 644
 645         //case cMidiBusBase:
 646         if (!_trackview.is_midi_track()) {
 647                 //canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();;
 648         }
 649 }
 650
 651 void
 652 MidiStreamView::note_range_adjustment_changed()
 653 {
 654         double sum = note_range_adjustment.get_value() + note_range_adjustment.get_page_size();
 655         int lowest = (int) floor(note_range_adjustment.get_value());
 656         int highest;
 657
 658         if (sum == _range_sum_cache) {
 659                 //cerr << "cached" << endl;
 660                 highest = (int) floor(sum);
 661         } else {
 662                 //cerr << "recalc" << endl;
 663                 highest = lowest + (int) floor(note_range_adjustment.get_page_size());
 664                 _range_sum_cache = sum;
 665         }
 666
 667         if (lowest == _lowest_note && highest == _highest_note) {
 668                 return;
 669         }
 670
 671         //cerr << "note range adjustment changed: " << lowest << " " << highest << endl;
 672         //cerr << "  val=" << v_zoom_adjustment.get_value() << " page=" << v_zoom_adjustment.get_page_size() << " sum=" << v_zoom_adjustment.get_value() + v_zoom_adjustment.get_page_size() << endl;
 673
 674         _lowest_note = lowest;
 675         _highest_note = highest;
 676         apply_note_range(lowest, highest, true);
 677 }
 678