gtk2_ardour/piano_roll_header.cc

   1 /*
   2     Copyright (C) 2008 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 <ardour/midi_track.h>
  20
  21 #include "piano_roll_header.h"
  22 #include "midi_time_axis.h"
  23 #include "midi_streamview.h"
  24
  25 #include <iostream>
  26
  27 const int no_note = 0xff;
  28
  29 using namespace std;
  30
  31 PianoRollHeader::Color PianoRollHeader::white = PianoRollHeader::Color(0.77f, 0.78f, 0.76f);
  32 PianoRollHeader::Color PianoRollHeader::white_highlight = PianoRollHeader::Color(0.87f, 0.88f, 0.86f);
  33 PianoRollHeader::Color PianoRollHeader::white_shade_light = PianoRollHeader::Color(0.95f, 0.95f, 0.95f);
  34 PianoRollHeader::Color PianoRollHeader::white_shade_dark = PianoRollHeader::Color(0.56f, 0.56f, 0.56f);
  35
  36 PianoRollHeader::Color PianoRollHeader::black = PianoRollHeader::Color(0.24f, 0.24f, 0.24f);
  37 PianoRollHeader::Color PianoRollHeader::black_highlight = PianoRollHeader::Color(0.30f, 0.30f, 0.30f);
  38 PianoRollHeader::Color PianoRollHeader::black_shade_light = PianoRollHeader::Color(0.46f, 0.46f, 0.46f);
  39 PianoRollHeader::Color PianoRollHeader::black_shade_dark = PianoRollHeader::Color(0.1f, 0.1f, 0.1f);
  40
  41 PianoRollHeader::Color::Color()
  42         : r(1.0f)
  43         , g(1.0f)
  44         , b(1.0f) {
  45 }
  46
  47 PianoRollHeader::Color::Color(double _r, double _g, double _b)
  48         : r(_r)
  49         , g(_g)
  50         , b(_b) {
  51 }
  52
  53 inline void
  54 PianoRollHeader::Color::set(const PianoRollHeader::Color& c) {
  55         r = c.r;
  56         g = c.g;
  57         b = c.b;
  58 }
  59
  60 PianoRollHeader::PianoRollHeader(MidiStreamView& v)
  61         : _view(v)
  62         , _highlighted_note(no_note)
  63         , _clicked_note(no_note)
  64         , _dragging(false) {
  65
  66         add_events (Gdk::BUTTON_PRESS_MASK |
  67                     Gdk::BUTTON_RELEASE_MASK |
  68                     Gdk::POINTER_MOTION_MASK |
  69                     Gdk::ENTER_NOTIFY_MASK |
  70                     Gdk::LEAVE_NOTIFY_MASK |
  71                     Gdk::SCROLL_MASK);
  72
  73         for(int i = 0; i < 128; ++i) {
  74                 _active_notes[i] = false;
  75         }
  76
  77         _view.NoteRangeChanged.connect (mem_fun (*this, &PianoRollHeader::note_range_changed));
  78 }
  79
  80 inline void
  81 create_path(Cairo::RefPtr<Cairo::Context> cr, double x[], double y[], int start, int stop) {
  82         cr->move_to(x[start], y[start]);
  83
  84         for(int i = start+1; i <= stop; ++i) {
  85                 cr->line_to(x[i], y[i]);
  86         }
  87 }
  88
  89 inline void
  90 render_rect(Cairo::RefPtr<Cairo::Context> cr, int note, double x[], double y[],
  91              PianoRollHeader::Color& bg, PianoRollHeader::Color& tl_shadow, PianoRollHeader::Color& br_shadow) {
  92         cr->set_source_rgb(bg.r, bg.g, bg.b);
  93         create_path(cr, x, y, 0, 4);
  94         cr->fill();
  95
  96         cr->set_source_rgb(tl_shadow.r, tl_shadow.g, tl_shadow.b);
  97         create_path(cr, x, y, 0, 2);
  98         cr->stroke();
  99
 100         cr->set_source_rgb(br_shadow.r, br_shadow.g, br_shadow.b);
 101         create_path(cr, x, y, 2, 4);
 102         cr->stroke();
 103 }
 104
 105 inline void
 106 render_cf(Cairo::RefPtr<Cairo::Context> cr, int note, double x[], double y[],
 107                 PianoRollHeader::Color& bg, PianoRollHeader::Color& tl_shadow, PianoRollHeader::Color& br_shadow) {
 108         cr->set_source_rgb(bg.r, bg.g, bg.b);
 109         create_path(cr, x, y, 0, 6);
 110         cr->fill();
 111
 112         cr->set_source_rgb(tl_shadow.r, tl_shadow.g, tl_shadow.b);
 113         create_path(cr, x, y, 0, 4);
 114         cr->stroke();
 115
 116         cr->set_source_rgb(br_shadow.r, br_shadow.g, br_shadow.b);
 117         create_path(cr, x, y, 4, 6);
 118         cr->stroke();
 119 }
 120
 121 inline void
 122 render_eb(Cairo::RefPtr<Cairo::Context> cr, int note, double x[], double y[],
 123                 PianoRollHeader::Color& bg, PianoRollHeader::Color& tl_shadow, PianoRollHeader::Color& br_shadow) {
 124         cr->set_source_rgb(bg.r, bg.g, bg.b);
 125         create_path(cr, x, y, 0, 6);
 126         cr->fill();
 127
 128         cr->set_source_rgb(tl_shadow.r, tl_shadow.g, tl_shadow.b);
 129         create_path(cr, x, y, 0, 2);
 130         cr->stroke();
 131         create_path(cr, x, y, 4, 5);
 132         cr->stroke();
 133
 134         cr->set_source_rgb(br_shadow.r, br_shadow.g, br_shadow.b);
 135         create_path(cr, x, y, 2, 4);
 136         cr->stroke();
 137         create_path(cr, x, y, 5, 6);
 138         cr->stroke();
 139 }
 140
 141 inline void
 142 render_dga(Cairo::RefPtr<Cairo::Context> cr, int note, double x[], double y[],
 143                  PianoRollHeader::Color& bg, PianoRollHeader::Color& tl_shadow, PianoRollHeader::Color& br_shadow) {
 144         cr->set_source_rgb(bg.r, bg.g, bg.b);
 145         create_path(cr, x, y, 0, 8);
 146         cr->fill();
 147
 148         cr->set_source_rgb(tl_shadow.r, tl_shadow.g, tl_shadow.b);
 149         create_path(cr, x, y, 0, 4);
 150         cr->stroke();
 151         create_path(cr, x, y, 6, 7);
 152         cr->stroke();
 153
 154         cr->set_source_rgb(br_shadow.r, br_shadow.g, br_shadow.b);
 155         create_path(cr, x, y, 4, 6);
 156         cr->stroke();
 157         create_path(cr, x, y, 7, 8);
 158         cr->stroke();
 159 }
 160
 161 void
 162 PianoRollHeader::get_path(PianoRollHeader::ItemType note_type, int note, double x[], double y[]) {
 163         double y_pos = floor(_view.note_to_y(note)) - 0.5f;
 164         double note_height;
 165         double other_y1 = floor(_view.note_to_y(note+1)) + floor(_note_height / 2.0f) + 0.5f;
 166         double other_y2 = floor(_view.note_to_y(note-1)) + floor(_note_height / 2.0f) - 1.0f;
 167         double width = get_width();
 168
 169         if(note == 0) {
 170                 note_height = floor(_view.contents_height()) - y_pos;
 171         }
 172         else {
 173                 note_height = floor(_view.note_to_y(note - 1)) - y_pos;
 174         }
 175
 176         switch(note_type) {
 177         case BLACK_SEPARATOR:
 178                 x[0] = 1.5f;
 179                 y[0] = y_pos;
 180                 x[1] = _black_note_width;
 181                 y[1] = y_pos;
 182                 break;
 183         case BLACK_MIDDLE_SEPARATOR:
 184                 x[0] = _black_note_width;
 185                 y[0] = y_pos + floor(_note_height / 2.0f);
 186                 x[1] = width - 1.0f;
 187                 y[1] = y[0];
 188                 break;
 189         case BLACK:
 190                 x[0] = 1.5f;
 191                 y[0] = y_pos + note_height - 0.5f;
 192                 x[1] = 1.5f;
 193                 y[1] = y_pos + 1.0f;
 194                 x[2] = _black_note_width;
 195                 y[2] = y_pos + 1.0f;
 196                 x[3] = _black_note_width;
 197                 y[3] = y_pos + note_height - 0.5f;
 198                 x[4] = 1.5f;
 199                 y[4] = y_pos + note_height - 0.5f;
 200                 return;
 201         case WHITE_SEPARATOR:
 202                 x[0] = 1.5f;
 203                 y[0] = y_pos;
 204                 x[1] = width - 1.5f;
 205                 y[1] = y_pos;
 206                 break;
 207         case WHITE_RECT:
 208                 x[0] = 1.5f;
 209                 y[0] = y_pos + note_height - 0.5f;
 210                 x[1] = 1.5f;
 211                 y[1] = y_pos + 1.0f;
 212                 x[2] = width - 1.5f;
 213                 y[2] = y_pos + 1.0f;
 214                 x[3] = width - 1.5f;
 215                 y[3] = y_pos + note_height - 0.5f;
 216                 x[4] = 1.5f;
 217                 y[4] = y_pos + note_height - 0.5f;
 218                 return;
 219         case WHITE_CF:
 220                 x[0] = 1.5f;
 221                 y[0] = y_pos + note_height - 1.5f;
 222                 x[1] = 1.5f;
 223                 y[1] = y_pos + 1.0f;
 224                 x[2] = _black_note_width + 1.0f;
 225                 y[2] = y_pos + 1.0f;
 226                 x[3] = _black_note_width + 1.0f;
 227                 y[3] = other_y1;
 228                 x[4] = width - 1.5f;
 229                 y[4] = other_y1;
 230                 x[5] = width - 1.5f;
 231                 y[5] = y_pos + note_height - 1.5f;
 232                 x[6] = 1.5f;
 233                 y[6] = y_pos + note_height - 1.5f;
 234                 return;
 235         case WHITE_EB:
 236                 x[0] = 1.5f;
 237                 y[0] = y_pos + note_height - 1.5f;
 238                 x[1] = 1.5f;
 239                 y[1] = y_pos + 1.0f;
 240                 x[2] = width - 1.5f;
 241                 y[2] = y_pos + 1.0f;
 242                 x[3] = width - 1.5f;
 243                 y[3] = other_y2;
 244                 x[4] = _black_note_width + 1.0f;
 245                 y[4] = other_y2;
 246                 x[5] = _black_note_width + 1.0f;
 247                 y[5] = y_pos + note_height - 1.5f;
 248                 x[6] = 1.5f;
 249                 y[6] = y_pos + note_height - 1.5f;
 250                 return;
 251         case WHITE_DGA:
 252                 x[0] = 1.5f;
 253                 y[0] = y_pos + note_height - 1.5f;
 254                 x[1] = 1.5f;
 255                 y[1] = y_pos + 1.0f;
 256                 x[2] = _black_note_width + 1.0f;
 257                 y[2] = y_pos + 1.0f;
 258                 x[3] = _black_note_width + 1.0f;
 259                 y[3] = other_y1;
 260                 x[4] = width - 1.5f;
 261                 y[4] = other_y1;
 262                 x[5] = width - 1.5f;
 263                 y[5] = other_y2;
 264                 x[6] = _black_note_width + 1.0f;
 265                 y[6] = other_y2;
 266                 x[7] = _black_note_width + 1.0f;
 267                 y[7] = y_pos + note_height - 1.5f;
 268                 x[8] = 1.5f;
 269                 y[8] = y_pos + note_height - 1.5f;
 270                 return;
 271         default:
 272                 return;
 273         }
 274 }
 275
 276 bool
 277 PianoRollHeader::on_expose_event (GdkEventExpose* ev) {
 278         GdkRectangle& rect = ev->area;
 279         double font_size;
 280         int lowest, highest;
 281         Cairo::RefPtr<Cairo::Context> cr = get_window()->create_cairo_context();
 282         Cairo::RefPtr<Cairo::LinearGradient> pat = Cairo::LinearGradient::create(0, 0, _black_note_width, 0);
 283         double x[9];
 284         double y[9];
 285         Color bg, tl_shadow, br_shadow;
 286         int oct_rel;
 287         int y1 = max(rect.y, 0);
 288         int y2 = min(rect.y + rect.height, (int) floor(_view.contents_height() - 1.0f));
 289
 290         //Cairo::TextExtents te;
 291         lowest = max(_view.lowest_note(), _view.y_to_note(y2));
 292         highest = min(_view.highest_note(), _view.y_to_note(y1));
 293
 294         if(lowest > 127) {
 295                 lowest = 0;
 296         }
 297
 298         cr->select_font_face ("Georgia", Cairo::FONT_SLANT_NORMAL, Cairo::FONT_WEIGHT_BOLD);
 299         font_size = min((double) 10.0f, _note_height - 4.0f);
 300         cr->set_font_size(font_size);
 301
 302         /* fill the entire rect with the color for non-highlighted white notes.
 303          * then we won't have to draw the background for those notes,
 304          * and would only have to draw the background for the one highlighted white note*/
 305         //cr->rectangle(rect.x, rect.y, rect.width, rect.height);
 306         //cr->set_source_rgb(white.r, white.g, white.b);
 307         //cr->fill();
 308
 309         cr->set_line_width(1.0f);
 310
 311         /* draw vertical lines with shade at both ends of the widget */
 312         cr->set_source_rgb(0.0f, 0.0f, 0.0f);
 313         cr->move_to(0.5f, rect.y);
 314         cr->line_to(0.5f, rect.y + rect.height);
 315         cr->stroke();
 316         cr->move_to(get_width() - 0.5f, rect.y);
 317         cr->line_to(get_width() - 0.5f, rect.y + rect.height);
 318         cr->stroke();
 319
 320         //pat->add_color_stop_rgb(0.0, 0.33, 0.33, 0.33);
 321         //pat->add_color_stop_rgb(0.2, 0.39, 0.39, 0.39);
 322         //pat->add_color_stop_rgb(1.0, 0.22, 0.22, 0.22);
 323         //cr->set_source(pat);
 324
 325         for(int i = lowest; i <= highest; ++i) {
 326                 oct_rel = i % 12;
 327
 328                 switch(oct_rel) {
 329                 case 1:
 330                 case 3:
 331                 case 6:
 332                 case 8:
 333                 case 10:
 334                         /* black note */
 335                         if(i == _highlighted_note) {
 336                                 bg.set(black_highlight);
 337                         }
 338                         else {
 339                                 bg.set(black);
 340                         }
 341
 342                         if(_active_notes[i]) {
 343                                 tl_shadow.set(black_shade_dark);
 344                                 br_shadow.set(black_shade_light);
 345                         }
 346                         else {
 347                                 tl_shadow.set(black_shade_light);
 348                                 br_shadow.set(black_shade_dark);
 349                         }
 350
 351                         /* draw black separators */
 352                         cr->set_source_rgb(0.0f, 0.0f, 0.0f);
 353                         get_path(BLACK_SEPARATOR, i, x, y);
 354                         create_path(cr, x, y, 0, 1);
 355                         cr->stroke();
 356
 357                         get_path(BLACK_MIDDLE_SEPARATOR, i, x, y);
 358                         create_path(cr, x, y, 0, 1);
 359                         cr->stroke();
 360
 361                         get_path(BLACK, i, x, y);
 362                         render_rect(cr, i, x, y, bg, tl_shadow, br_shadow);
 363                         break;
 364
 365                 default:
 366                         /* white note */
 367                         if(i == _highlighted_note) {
 368                                 bg.set(white_highlight);
 369                         }
 370                         else {
 371                                 bg.set(white);
 372                         }
 373
 374                         if(_active_notes[i]) {
 375                                 tl_shadow.set(white_shade_dark);
 376                                 br_shadow.set(white_shade_light);
 377                         }
 378                         else {
 379                                 tl_shadow.set(white_shade_light);
 380                                 br_shadow.set(white_shade_dark);
 381                         }
 382
 383                         switch(oct_rel) {
 384                         case 0:
 385                         case 5:
 386                                 if(i == _view.highest_note()) {
 387                                         get_path(WHITE_RECT, i, x, y);
 388                                         render_rect(cr, i, x, y, bg, tl_shadow, br_shadow);
 389                                 }
 390                                 else {
 391                                         get_path(WHITE_CF, i, x, y);
 392                                         render_cf(cr, i, x, y, bg, tl_shadow, br_shadow);
 393                                 }
 394                                 break;
 395
 396                         case 2:
 397                         case 7:
 398                         case 9:
 399                                 if(i == _view.highest_note()) {
 400                                         get_path(WHITE_EB, i, x, y);
 401                                         render_eb(cr, i, x, y, bg, tl_shadow, br_shadow);
 402                                 }
 403                                 else if(i == _view.lowest_note()) {
 404                                         get_path(WHITE_CF, i, x, y);
 405                                         render_cf(cr, i, x, y, bg, tl_shadow, br_shadow);
 406                                 }
 407                                 else {
 408                                         get_path(WHITE_DGA, i, x, y);
 409                                         render_dga(cr, i, x, y, bg, tl_shadow, br_shadow);
 410                                 }
 411                                 break;
 412
 413                         case 4:
 414                         case 11:
 415                                 cr->set_source_rgb(0.0f, 0.0f, 0.0f);
 416                                 get_path(WHITE_SEPARATOR, i, x, y);
 417                                 create_path(cr, x, y, 0, 1);
 418                                 cr->stroke();
 419
 420                                 if(i == _view.lowest_note()) {
 421                                         get_path(WHITE_RECT, i, x, y);
 422                                         render_rect(cr, i, x, y, bg, tl_shadow, br_shadow);
 423                                 }
 424                                 else {
 425                                         get_path(WHITE_EB, i, x, y);
 426                                         render_eb(cr, i, x, y, bg, tl_shadow, br_shadow);
 427                                 }
 428                                 break;
 429
 430                         default:
 431                                 break;
 432
 433                         }
 434                         break;
 435
 436                 }
 437
 438                 /* render the name of which C this is */
 439                 if(oct_rel == 0) {
 440                         std::stringstream s;
 441                         double y = floor(_view.note_to_y(i)) - 0.5f;
 442                         double note_height = floor(_view.note_to_y(i - 1)) - y;
 443
 444                         int cn = i / 12;
 445                         s << "C" << cn;
 446
 447                         //cr->get_text_extents(s.str(), te);
 448                         cr->set_source_rgb(0.30f, 0.30f, 0.30f);
 449                         cr->move_to(2.0f, y + note_height - 1.0f - (note_height - font_size) / 2.0f);
 450                         cr->show_text(s.str());
 451                 }
 452         }
 453
 454         return true;
 455 }
 456
 457 bool
 458 PianoRollHeader::on_motion_notify_event (GdkEventMotion* ev) {
 459         int note = _view.y_to_note(ev->y);
 460
 461         if(_highlighted_note != no_note) {
 462                 if(note > _highlighted_note) {
 463                         invalidate_note_range(_highlighted_note, note);
 464                 }
 465                 else {
 466                         invalidate_note_range(note, _highlighted_note);
 467                 }
 468
 469                 _highlighted_note = note;
 470         }
 471
 472         /* redraw already taken care of above */
 473         if(_clicked_note != no_note && _clicked_note != note) {
 474                 _active_notes[_clicked_note] = false;
 475                 send_note_off(_clicked_note);
 476
 477                 _clicked_note = note;
 478
 479                 if(!_active_notes[note]) {
 480                         _active_notes[note] = true;
 481                         send_note_on(note);
 482                 }
 483         }
 484
 485         //win->process_updates(false);
 486
 487         return true;
 488 }
 489
 490 bool
 491 PianoRollHeader::on_button_press_event (GdkEventButton* ev) {
 492         int note = _view.y_to_note(ev->y);
 493
 494         if(ev->type == GDK_BUTTON_PRESS && note >= 0 && note < 128) {
 495                 add_modal_grab();
 496                 _dragging = true;
 497
 498                 if(!_active_notes[note]) {
 499                         _active_notes[note] = true;
 500                         _clicked_note = note;
 501                         send_note_on(note);
 502
 503                         invalidate_note_range(note, note);
 504                 }
 505                 else {
 506                         _clicked_note = no_note;
 507                 }
 508         }
 509
 510         return true;
 511 }
 512
 513 bool
 514 PianoRollHeader::on_button_release_event (GdkEventButton* ev) {
 515         int note = _view.y_to_note(ev->y);
 516
 517         if(_dragging) {
 518                 remove_modal_grab();
 519                 _dragging = false;
 520
 521                 if(note == _clicked_note) {
 522                         _active_notes[note] = false;
 523                         _clicked_note = no_note;
 524                         send_note_off(note);
 525
 526                         invalidate_note_range(note, note);
 527                 }
 528         }
 529
 530         return true;
 531 }
 532
 533 bool
 534 PianoRollHeader::on_enter_notify_event (GdkEventCrossing* ev) {
 535         _highlighted_note = _view.y_to_note(ev->y);
 536
 537         invalidate_note_range(_highlighted_note, _highlighted_note);
 538         return true;
 539 }
 540
 541 bool
 542 PianoRollHeader::on_leave_notify_event (GdkEventCrossing*) {
 543         invalidate_note_range(_highlighted_note, _highlighted_note);
 544
 545         if(_clicked_note != no_note) {
 546                 _active_notes[_clicked_note] = false;
 547                 send_note_off(_clicked_note);
 548
 549                 if(_clicked_note != _highlighted_note) {
 550                         invalidate_note_range(_clicked_note, _clicked_note);
 551                 }
 552
 553                 _clicked_note = no_note;
 554         }
 555
 556         _highlighted_note = no_note;
 557         return true;
 558 }
 559
 560 bool
 561 PianoRollHeader::on_scroll_event (GdkEventScroll* ev) {
 562         return true;
 563 }
 564
 565 void
 566 PianoRollHeader::note_range_changed() {
 567         _note_height = floor(_view.note_height()) + 0.5f;
 568
 569         queue_draw();
 570
 571         Glib::RefPtr<Gdk::Window> win = get_window();
 572
 573         if(win) {
 574                 win->process_updates(false);
 575         }
 576 }
 577
 578 void
 579 PianoRollHeader::invalidate_note_range(int lowest, int highest) {
 580         Glib::RefPtr<Gdk::Window> win = get_window();
 581         Gdk::Rectangle rect;
 582
 583         // the non-rectangular geometry of some of the notes requires more
 584         // redraws than the notes that actually changed.
 585         switch(lowest % 12) {
 586         case 0:
 587         case 5:
 588                 lowest = max((int) _view.lowest_note(), lowest);
 589                 break;
 590         default:
 591                 lowest = max((int) _view.lowest_note(), lowest - 1);
 592                 break;
 593         }
 594
 595         switch(highest % 12) {
 596         case 4:
 597         case 11:
 598                 highest = min((int) _view.highest_note(), highest);
 599                 break;
 600         case 1:
 601         case 3:
 602         case 6:
 603         case 8:
 604         case 10:
 605                 highest = min((int) _view.highest_note(), highest + 1);
 606                 break;
 607         default:
 608                 highest = min((int) _view.highest_note(), highest + 2);
 609                 break;
 610         }
 611
 612         double y = _view.note_to_y(highest);
 613         double height = _view.note_to_y(lowest - 1) - y;
 614
 615         rect.set_x(0);
 616         rect.set_width(get_width());
 617         rect.set_y((int) floor(y));
 618         rect.set_height((int) floor(height));
 619
 620         if(win) {
 621                 win->invalidate_rect(rect, false);
 622         }
 623 }
 624
 625 void
 626 PianoRollHeader::on_size_request(Gtk::Requisition* r) {
 627         r->width = 20;
 628 }
 629
 630 void
 631 PianoRollHeader::on_size_allocate(Gtk::Allocation& a) {
 632         DrawingArea::on_size_allocate(a);
 633
 634         _black_note_width = floor(0.7 * get_width()) + 0.5f;
 635 }
 636
 637 void
 638 PianoRollHeader::send_note_on(uint8_t note) {
 639         boost::shared_ptr<ARDOUR::MidiTrack> track = _view.trackview().midi_track();
 640
 641         //cerr << "note on: " << (int) note << endl;
 642
 643         if(track) {
 644                 _event[0] = MIDI_CMD_NOTE_ON;
 645                 _event[1] = note;
 646                 _event[2] = 100;
 647
 648                 track->write_immediate_event(3, _event);
 649         }
 650 }
 651
 652 void
 653 PianoRollHeader::send_note_off(uint8_t note) {
 654         boost::shared_ptr<ARDOUR::MidiTrack> track = _view.trackview().midi_track();
 655
 656         if(track) {
 657                 _event[0] = MIDI_CMD_NOTE_OFF;
 658                 _event[1] = note;
 659                 _event[2] = 100;
 660
 661                 track->write_immediate_event(3, _event);
 662         }
 663 }