gtk2_ardour/midi_region_view.cc

   1 /*
   2     Copyright (C) 2001-2007 Paul Davis
   3     Author: Dave Robillard
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 #include <cmath>
  21 #include <cassert>
  22 #include <algorithm>
  23 #include <ostream>
  24
  25 #include <gtkmm.h>
  26
  27 #include <gtkmm2ext/gtk_ui.h>
  28
  29 #include <sigc++/signal.h>
  30
  31 #include "pbd/memento_command.h"
  32
  33 #include "ardour/playlist.h"
  34 #include "ardour/tempo.h"
  35 #include "ardour/midi_region.h"
  36 #include "ardour/midi_source.h"
  37 #include "ardour/midi_diskstream.h"
  38 #include "ardour/midi_model.h"
  39 #include "ardour/midi_patch_manager.h"
  40
  41 #include "evoral/Parameter.hpp"
  42 #include "evoral/Control.hpp"
  43
  44 #include "automation_region_view.h"
  45 #include "automation_time_axis.h"
  46 #include "canvas-hit.h"
  47 #include "canvas-note.h"
  48 #include "canvas-program-change.h"
  49 #include "ghostregion.h"
  50 #include "gui_thread.h"
  51 #include "keyboard.h"
  52 #include "midi_cut_buffer.h"
  53 #include "midi_list_editor.h"
  54 #include "midi_region_view.h"
  55 #include "midi_streamview.h"
  56 #include "midi_time_axis.h"
  57 #include "midi_time_axis.h"
  58 #include "midi_util.h"
  59 #include "public_editor.h"
  60 #include "selection.h"
  61 #include "simpleline.h"
  62 #include "streamview.h"
  63 #include "utils.h"
  64
  65 #include "i18n.h"
  66
  67 using namespace sigc;
  68 using namespace ARDOUR;
  69 using namespace PBD;
  70 using namespace Editing;
  71 using namespace ArdourCanvas;
  72
  73 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  74                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
  75         : RegionView (parent, tv, r, spu, basic_color)
  76         , _force_channel(-1)
  77         , _last_channel_selection(0xFFFF)
  78         , _default_note_length(1.0)
  79         , _current_range_min(0)
  80         , _current_range_max(0)
  81         , _model_name(string())
  82         , _custom_device_mode(string())
  83         , _active_notes(0)
  84         , _note_group(new ArdourCanvas::Group(*parent))
  85         , _delta_command(0)
  86         , _diff_command(0)
  87         , _mouse_state(None)
  88         , _pressed_button(0)
  89         , _sort_needed (true)
  90         , _optimization_iterator (_events.end())
  91 {
  92         _note_group->raise_to_top();
  93 }
  94
  95 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  96                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color,
  97                 TimeAxisViewItem::Visibility visibility)
  98         : RegionView (parent, tv, r, spu, basic_color, false, visibility)
  99         , _force_channel(-1)
 100         , _last_channel_selection(0xFFFF)
 101         , _default_note_length(1.0)
 102         , _model_name(string())
 103         , _custom_device_mode(string())
 104         , _active_notes(0)
 105         , _note_group(new ArdourCanvas::Group(*parent))
 106         , _delta_command(0)
 107         , _diff_command(0)
 108         , _mouse_state(None)
 109         , _pressed_button(0)
 110         , _sort_needed (true)
 111         , _optimization_iterator (_events.end())
 112
 113 {
 114         _note_group->raise_to_top();
 115 }
 116
 117
 118 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 119         : sigc::trackable(other)
 120         , RegionView (other)
 121         , _force_channel(-1)
 122         , _last_channel_selection(0xFFFF)
 123         , _default_note_length(1.0)
 124         , _model_name(string())
 125         , _custom_device_mode(string())
 126         , _active_notes(0)
 127         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 128         , _delta_command(0)
 129         , _diff_command(0)
 130         , _mouse_state(None)
 131         , _pressed_button(0)
 132         , _sort_needed (true)
 133         , _optimization_iterator (_events.end())
 134 {
 135         Gdk::Color c;
 136         int r,g,b,a;
 137
 138         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 139         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 140
 141         init (c, false);
 142 }
 143
 144 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 145         : RegionView (other, boost::shared_ptr<Region> (region))
 146         , _force_channel(-1)
 147         , _last_channel_selection(0xFFFF)
 148         , _default_note_length(1.0)
 149         , _model_name(string())
 150         , _custom_device_mode(string())
 151         , _active_notes(0)
 152         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 153         , _delta_command(0)
 154         , _diff_command(0)
 155         , _mouse_state(None)
 156         , _pressed_button(0)
 157         , _sort_needed (true)
 158         , _optimization_iterator (_events.end())
 159 {
 160         Gdk::Color c;
 161         int r,g,b,a;
 162
 163         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 164         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 165
 166         init (c, true);
 167 }
 168
 169 void
 170 MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 171 {
 172         if (wfd) {
 173                 midi_region()->midi_source(0)->load_model();
 174         }
 175
 176         _model = midi_region()->midi_source(0)->model();
 177         _enable_display = false;
 178
 179         RegionView::init (basic_color, false);
 180
 181         compute_colors (basic_color);
 182
 183         set_height (trackview.current_height());
 184
 185         region_muted ();
 186         region_sync_changed ();
 187         region_resized (BoundsChanged);
 188         region_locked ();
 189
 190         reset_width_dependent_items (_pixel_width);
 191
 192         set_colors ();
 193
 194         _enable_display = true;
 195         if (_model) {
 196                 if (wfd) {
 197                         display_model (_model);
 198                 }
 199         }
 200
 201         group->raise_to_top();
 202         group->signal_event().connect (mem_fun (this, &MidiRegionView::canvas_event), false);
 203
 204         midi_view()->signal_channel_mode_changed().connect(
 205                         mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
 206
 207         midi_view()->signal_midi_patch_settings_changed().connect(
 208                         mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
 209 }
 210
 211 bool
 212 MidiRegionView::canvas_event(GdkEvent* ev)
 213 {
 214         PublicEditor& editor (trackview.editor());
 215
 216         if (!editor.internal_editing()) {
 217                 return false;
 218         }
 219
 220         static double drag_start_x, drag_start_y;
 221         static double last_x, last_y;
 222         double event_x, event_y;
 223         nframes64_t event_frame = 0;
 224         bool fine;
 225
 226         static ArdourCanvas::SimpleRect* drag_rect = 0;
 227
 228         /* XXX: note that as of August 2009, the GnomeCanvas does not propagate scroll events
 229            to its items, which means that ev->type == GDK_SCROLL will never be seen
 230         */
 231
 232         switch (ev->type) {
 233         case GDK_SCROLL:
 234                 fine = Keyboard::modifier_state_equals (ev->scroll.state, Keyboard::Level4Modifier);
 235
 236                 if (ev->scroll.direction == GDK_SCROLL_UP) {
 237                         change_velocities (true, fine, false);
 238                         return true;
 239                 } else if (ev->scroll.direction == GDK_SCROLL_DOWN) {
 240                         change_velocities (false, fine, false);
 241                         return true;
 242                 } else {
 243                         return false;
 244                 }
 245                 break;
 246
 247         case GDK_KEY_PRESS:
 248
 249                 /* since GTK bindings are generally activated on press, and since
 250                    detectable auto-repeat is the name of the game and only sends
 251                    repeated presses, carry out key actions at key press, not release.
 252                 */
 253
 254                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R){
 255                         _mouse_state = SelectTouchDragging;
 256                         return true;
 257
 258                 } else if (ev->key.keyval == GDK_Escape) {
 259                         clear_selection();
 260                         _mouse_state = None;
 261
 262                 } else if (ev->key.keyval == GDK_comma || ev->key.keyval == GDK_period) {
 263
 264                         bool start = (ev->key.keyval == GDK_comma);
 265                         bool end = (ev->key.keyval == GDK_period);
 266                         bool shorter = Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier);
 267                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 268
 269                         change_note_lengths (fine, shorter, start, end);
 270
 271                         return true;
 272
 273                 } else if (ev->key.keyval == GDK_Delete) {
 274
 275                         delete_selection();
 276                         return true;
 277
 278                 } else if (ev->key.keyval == GDK_Tab) {
 279
 280                         if (Keyboard::modifier_state_equals (ev->key.state, Keyboard::PrimaryModifier)) {
 281                                 goto_previous_note ();
 282                         } else {
 283                                 goto_next_note ();
 284                         }
 285                         return true;
 286
 287                 } else if (ev->key.keyval == GDK_Up) {
 288
 289                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 290                         bool fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 291
 292                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 293                                 change_velocities (true, fine, allow_smush);
 294                         } else {
 295                                 transpose (true, fine, allow_smush);
 296                         }
 297                         return true;
 298
 299                 } else if (ev->key.keyval == GDK_Down) {
 300
 301                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 302                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 303
 304                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 305                                 change_velocities (false, fine, allow_smush);
 306                         } else {
 307                                 transpose (false, fine, allow_smush);
 308                         }
 309                         return true;
 310
 311                 } else if (ev->key.keyval == GDK_Left) {
 312
 313                         nudge_notes (false);
 314                         return true;
 315
 316                 } else if (ev->key.keyval == GDK_Right) {
 317
 318                         nudge_notes (true);
 319                         return true;
 320
 321                 } else if (ev->key.keyval == GDK_Control_L) {
 322                         return true;
 323
 324                 } else if (ev->key.keyval == GDK_r) {
 325                         /* if we're not step editing, this really doesn't matter */
 326                         midi_view()->step_edit_rest ();
 327                         return true;
 328                 }
 329
 330                 return false;
 331
 332         case GDK_KEY_RELEASE:
 333                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R) {
 334                         _mouse_state = None;
 335                         return true;
 336                 }
 337                 return false;
 338
 339         case GDK_BUTTON_PRESS:
 340                 if (_mouse_state != SelectTouchDragging && ev->button.button == 1) {
 341                         _pressed_button = ev->button.button;
 342                         _mouse_state = Pressed;
 343                         return true;
 344                 }
 345                 _pressed_button = ev->button.button;
 346                 return true;
 347
 348         case GDK_2BUTTON_PRESS:
 349                 return true;
 350
 351         case GDK_ENTER_NOTIFY:
 352                 /* FIXME: do this on switch to note tool, too, if the pointer is already in */
 353                 Keyboard::magic_widget_grab_focus();
 354                 group->grab_focus();
 355                 break;
 356
 357         case GDK_MOTION_NOTIFY:
 358                 event_x = ev->motion.x;
 359                 event_y = ev->motion.y;
 360                 group->w2i(event_x, event_y);
 361
 362                 // convert event_x to global frame
 363                 event_frame = trackview.editor().pixel_to_frame(event_x) + _region->position();
 364                 trackview.editor().snap_to(event_frame);
 365                 // convert event_frame back to local coordinates relative to position
 366                 event_frame -= _region->position();
 367
 368                 switch (_mouse_state) {
 369                 case Pressed: // Drag start
 370
 371                         // Select drag start
 372                         if (_pressed_button == 1 && editor.current_mouse_mode() == MouseObject) {
 373                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 374                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 375                                 last_x = event_x;
 376                                 last_y = event_y;
 377                                 drag_start_x = event_x;
 378                                 drag_start_y = event_y;
 379
 380                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 381                                 drag_rect->property_x1() = event_x;
 382                                 drag_rect->property_y1() = event_y;
 383                                 drag_rect->property_x2() = event_x;
 384                                 drag_rect->property_y2() = event_y;
 385                                 drag_rect->property_outline_what() = 0xFF;
 386                                 drag_rect->property_outline_color_rgba()
 387                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 388                                 drag_rect->property_fill_color_rgba()
 389                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 390
 391                                 _mouse_state = SelectRectDragging;
 392                                 return true;
 393
 394                         // Add note drag start
 395                         } else if (editor.current_mouse_mode() == MouseRange) {
 396                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 397                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 398                                 last_x = event_x;
 399                                 last_y = event_y;
 400                                 drag_start_x = event_x;
 401                                 drag_start_y = event_y;
 402
 403                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 404                                 drag_rect->property_x1() = trackview.editor().frame_to_pixel(event_frame);
 405
 406                                 drag_rect->property_y1() = midi_stream_view()->note_to_y(
 407                                                 midi_stream_view()->y_to_note(event_y));
 408                                 drag_rect->property_x2() = event_x;
 409                                 drag_rect->property_y2() = drag_rect->property_y1()
 410                                                          + floor(midi_stream_view()->note_height());
 411                                 drag_rect->property_outline_what() = 0xFF;
 412                                 drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 413                                 drag_rect->property_fill_color_rgba()    = 0xFFFFFF66;
 414
 415                                 _mouse_state = AddDragging;
 416                                 return true;
 417                         }
 418
 419                         return false;
 420
 421                 case SelectRectDragging: // Select drag motion
 422                 case AddDragging: // Add note drag motion
 423                         if (ev->motion.is_hint) {
 424                                 int t_x;
 425                                 int t_y;
 426                                 GdkModifierType state;
 427                                 gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
 428                                 event_x = t_x;
 429                                 event_y = t_y;
 430                         }
 431
 432                         if (_mouse_state == AddDragging)
 433                                 event_x = trackview.editor().frame_to_pixel(event_frame);
 434
 435                         if (drag_rect) {
 436                                 if (event_x > drag_start_x)
 437                                         drag_rect->property_x2() = event_x;
 438                                 else
 439                                         drag_rect->property_x1() = event_x;
 440                         }
 441
 442                         if (drag_rect && _mouse_state == SelectRectDragging) {
 443                                 if (event_y > drag_start_y)
 444                                         drag_rect->property_y2() = event_y;
 445                                 else
 446                                         drag_rect->property_y1() = event_y;
 447
 448                                 update_drag_selection(drag_start_x, event_x, drag_start_y, event_y);
 449                         }
 450
 451                         last_x = event_x;
 452                         last_y = event_y;
 453
 454                 case SelectTouchDragging:
 455                         return false;
 456
 457                 default:
 458                         break;
 459                 }
 460                 break;
 461
 462         case GDK_BUTTON_RELEASE:
 463                 event_x = ev->motion.x;
 464                 event_y = ev->motion.y;
 465                 group->w2i(event_x, event_y);
 466                 group->ungrab(ev->button.time);
 467                 event_frame = trackview.editor().pixel_to_frame(event_x);
 468
 469                 if (ev->button.button == 3) {
 470                         return false;
 471                 } else if (_pressed_button != 1) {
 472                         return false;
 473                 }
 474
 475                 switch (_mouse_state) {
 476                 case Pressed: // Clicked
 477                         switch (editor.current_mouse_mode()) {
 478                         case MouseObject:
 479                         case MouseTimeFX:
 480                                 clear_selection();
 481                                 break;
 482                         case MouseRange:
 483                                 create_note_at(event_x, event_y, _default_note_length);
 484                                 break;
 485                         default:
 486                                 break;
 487                         }
 488                         _mouse_state = None;
 489                         break;
 490                 case SelectRectDragging: // Select drag done
 491                         _mouse_state = None;
 492                         delete drag_rect;
 493                         drag_rect = 0;
 494                         break;
 495                 case AddDragging: // Add drag done
 496                         _mouse_state = None;
 497                         if (drag_rect->property_x2() > drag_rect->property_x1() + 2) {
 498                                 const double x      = drag_rect->property_x1();
 499                                 const double length = trackview.editor().pixel_to_frame(
 500                                                         drag_rect->property_x2() - drag_rect->property_x1());
 501
 502                                 create_note_at(x, drag_rect->property_y1(), frames_to_beats(length));
 503                         }
 504
 505                         delete drag_rect;
 506                         drag_rect = 0;
 507                 default: break;
 508                 }
 509
 510         default: break;
 511         }
 512
 513         return false;
 514 }
 515
 516 void
 517 MidiRegionView::show_list_editor ()
 518 {
 519         MidiListEditor* mle = new MidiListEditor (trackview.session(), midi_region());
 520         mle->show ();
 521 }
 522
 523 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 524  * \param x horizontal position in pixels
 525  * \param y vertical position in pixels
 526  * \param length duration of the note in beats */
 527 void
 528 MidiRegionView::create_note_at(double x, double y, double length)
 529 {
 530         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 531         MidiStreamView* const view = mtv->midi_view();
 532
 533         double note = midi_stream_view()->y_to_note(y);
 534
 535         assert(note >= 0.0);
 536         assert(note <= 127.0);
 537
 538         // Start of note in frames relative to region start
 539         nframes64_t start_frames = snap_frame_to_frame(trackview.editor().pixel_to_frame(x));
 540         assert(start_frames >= 0);
 541
 542         // Snap length
 543         length = frames_to_beats(
 544                         snap_frame_to_frame(start_frames + beats_to_frames(length)) - start_frames);
 545
 546         const boost::shared_ptr<NoteType> new_note(new NoteType(0,
 547                         frames_to_beats(start_frames + _region->start()), length,
 548                         (uint8_t)note, 0x40));
 549
 550         view->update_note_range(new_note->note());
 551
 552         MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
 553         cmd->add(new_note);
 554         _model->apply_command(trackview.session(), cmd);
 555
 556         play_midi_note (new_note);
 557 }
 558
 559 void
 560 MidiRegionView::clear_events()
 561 {
 562         clear_selection();
 563
 564         MidiGhostRegion* gr;
 565         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 566                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 567                         gr->clear_events();
 568                 }
 569         }
 570
 571         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 572                 delete *i;
 573         }
 574
 575         _events.clear();
 576         _pgm_changes.clear();
 577         _sys_exes.clear();
 578         _optimization_iterator = _events.end();
 579 }
 580
 581
 582 void
 583 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 584 {
 585         _model = model;
 586         content_connection.disconnect ();
 587         content_connection = _model->ContentsChanged.connect(sigc::mem_fun(this, &MidiRegionView::redisplay_model));
 588         clear_events ();
 589
 590         if (_enable_display) {
 591                 redisplay_model();
 592         }
 593 }
 594
 595
 596 void
 597 MidiRegionView::start_delta_command(string name)
 598 {
 599         if (!_delta_command) {
 600                 _delta_command = _model->new_delta_command(name);
 601         }
 602 }
 603
 604 void
 605 MidiRegionView::start_diff_command(string name)
 606 {
 607         if (!_diff_command) {
 608                 _diff_command = _model->new_diff_command(name);
 609         }
 610 }
 611
 612 void
 613 MidiRegionView::delta_add_note(const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
 614 {
 615         if (_delta_command) {
 616                 _delta_command->add(note);
 617         }
 618         if (selected) {
 619                 _marked_for_selection.insert(note);
 620         }
 621         if (show_velocity) {
 622                 _marked_for_velocity.insert(note);
 623         }
 624 }
 625
 626 void
 627 MidiRegionView::delta_remove_note(ArdourCanvas::CanvasNoteEvent* ev)
 628 {
 629         if (_delta_command && ev->note()) {
 630                 _delta_command->remove(ev->note());
 631         }
 632 }
 633
 634 void
 635 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 636                                  MidiModel::DiffCommand::Property property,
 637                                  uint8_t val)
 638 {
 639         if (_diff_command) {
 640                 _diff_command->change (ev->note(), property, val);
 641         }
 642 }
 643
 644 void
 645 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 646                                  MidiModel::DiffCommand::Property property,
 647                                  Evoral::MusicalTime val)
 648 {
 649         if (_diff_command) {
 650                 _diff_command->change (ev->note(), property, val);
 651         }
 652 }
 653
 654 void
 655 MidiRegionView::apply_delta()
 656 {
 657         if (!_delta_command) {
 658                 return;
 659         }
 660
 661         // Mark all selected notes for selection when model reloads
 662         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 663                 _marked_for_selection.insert((*i)->note());
 664         }
 665
 666         _model->apply_command(trackview.session(), _delta_command);
 667         _delta_command = 0;
 668         midi_view()->midi_track()->diskstream()->playlist_modified();
 669
 670         _marked_for_selection.clear();
 671         _marked_for_velocity.clear();
 672 }
 673
 674 void
 675 MidiRegionView::apply_diff ()
 676 {
 677         if (!_diff_command) {
 678                 return;
 679         }
 680
 681         _model->apply_command(trackview.session(), _diff_command);
 682         _diff_command = 0;
 683         midi_view()->midi_track()->diskstream()->playlist_modified();
 684
 685         _marked_for_velocity.clear();
 686 }
 687
 688 void
 689 MidiRegionView::apply_delta_as_subcommand()
 690 {
 691         if (!_delta_command) {
 692                 return;
 693         }
 694
 695         // Mark all selected notes for selection when model reloads
 696         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 697                 _marked_for_selection.insert((*i)->note());
 698         }
 699
 700         _model->apply_command_as_subcommand(trackview.session(), _delta_command);
 701         _delta_command = 0;
 702         midi_view()->midi_track()->diskstream()->playlist_modified();
 703
 704         _marked_for_selection.clear();
 705         _marked_for_velocity.clear();
 706 }
 707
 708 void
 709 MidiRegionView::apply_diff_as_subcommand()
 710 {
 711         if (!_diff_command) {
 712                 return;
 713         }
 714
 715         // Mark all selected notes for selection when model reloads
 716         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 717                 _marked_for_selection.insert((*i)->note());
 718         }
 719
 720         _model->apply_command_as_subcommand(trackview.session(), _diff_command);
 721         _diff_command = 0;
 722         midi_view()->midi_track()->diskstream()->playlist_modified();
 723
 724         _marked_for_selection.clear();
 725         _marked_for_velocity.clear();
 726 }
 727
 728 void
 729 MidiRegionView::abort_command()
 730 {
 731         delete _delta_command;
 732         _delta_command = 0;
 733         delete _diff_command;
 734         _diff_command = 0;
 735         clear_selection();
 736 }
 737
 738 CanvasNoteEvent*
 739 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
 740 {
 741         if (_optimization_iterator != _events.end()) {
 742                 ++_optimization_iterator;
 743         }
 744
 745         if (_optimization_iterator != _events.end() && (*_optimization_iterator)->note() == note) {
 746                 return *_optimization_iterator;
 747         }
 748
 749         for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
 750                 if ((*_optimization_iterator)->note() == note) {
 751                         return *_optimization_iterator;
 752                 }
 753         }
 754
 755         return 0;
 756 }
 757
 758 void
 759 MidiRegionView::redisplay_model()
 760 {
 761         // Don't redisplay the model if we're currently recording and displaying that
 762         if (_active_notes) {
 763                 return;
 764         }
 765
 766         if (!_model) {
 767                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
 768                 return;
 769         }
 770
 771         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 772                 (*i)->invalidate ();
 773         }
 774
 775         MidiModel::ReadLock lock(_model->read_lock());
 776
 777         MidiModel::Notes& notes (_model->notes());
 778         _optimization_iterator = _events.begin();
 779
 780         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 781
 782                 boost::shared_ptr<NoteType> note (*n);
 783                 CanvasNoteEvent* cne;
 784                 bool visible;
 785
 786                 if (note_in_region_range (note, visible)) {
 787
 788                         if ((cne = find_canvas_note (note)) != 0) {
 789
 790                                 cne->validate ();
 791
 792                                 CanvasNote* cn;
 793                                 CanvasHit* ch;
 794
 795                                 if ((cn = dynamic_cast<CanvasNote*>(cne)) != 0) {
 796                                         update_note (cn);
 797                                 } else if ((ch = dynamic_cast<CanvasHit*>(cne)) != 0) {
 798                                         update_hit (ch);
 799                                 }
 800
 801                                 if (visible) {
 802                                         cne->show ();
 803                                 } else {
 804                                         cne->hide ();
 805                                 }
 806
 807                         } else {
 808
 809                                 add_note (note, visible);
 810                         }
 811
 812                 } else {
 813
 814                         if ((cne = find_canvas_note (note)) != 0) {
 815                                 cne->validate ();
 816                                 cne->hide ();
 817                         }
 818                 }
 819         }
 820
 821         /* remove note items that are no longer valid */
 822
 823         for (Events::iterator i = _events.begin(); i != _events.end(); ) {
 824                 if (!(*i)->valid ()) {
 825                         delete *i;
 826                         i = _events.erase (i);
 827                 } else {
 828                         ++i;
 829                 }
 830         }
 831
 832         display_sysexes();
 833         display_program_changes();
 834
 835         _marked_for_selection.clear ();
 836         _marked_for_velocity.clear ();
 837
 838         /* we may have caused _events to contain things out of order (e.g. if a note
 839            moved earlier or later). we don't generally need them in time order, but
 840            make a note that a sort is required for those cases that require it.
 841         */
 842
 843         _sort_needed = true;
 844 }
 845
 846 void
 847 MidiRegionView::display_program_changes()
 848 {
 849         boost::shared_ptr<Evoral::Control> control = _model->control(MidiPgmChangeAutomation);
 850         if (!control) {
 851                 return;
 852         }
 853
 854         Glib::Mutex::Lock lock (control->list()->lock());
 855
 856         uint8_t channel = control->parameter().channel();
 857
 858         for (AutomationList::const_iterator event = control->list()->begin();
 859                         event != control->list()->end(); ++event) {
 860                 double event_time     = (*event)->when;
 861                 double program_number = floor((*event)->value + 0.5);
 862
 863                 // Get current value of bank select MSB at time of the program change
 864                 Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
 865                 boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
 866                 uint8_t msb = 0;
 867                 if (msb_control != 0) {
 868                         msb = uint8_t(floor(msb_control->get_float(true, event_time) + 0.5));
 869                 }
 870
 871                 // Get current value of bank select LSB at time of the program change
 872                 Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
 873                 boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
 874                 uint8_t lsb = 0;
 875                 if (lsb_control != 0) {
 876                         lsb = uint8_t(floor(lsb_control->get_float(true, event_time) + 0.5));
 877                 }
 878
 879                 MIDI::Name::PatchPrimaryKey patch_key(msb, lsb, program_number);
 880
 881                 boost::shared_ptr<MIDI::Name::Patch> patch =
 882                         MIDI::Name::MidiPatchManager::instance().find_patch(
 883                                         _model_name, _custom_device_mode, channel, patch_key);
 884
 885                 PCEvent program_change(event_time, uint8_t(program_number), channel);
 886
 887                 if (patch != 0) {
 888                         add_pgm_change(program_change, patch->name());
 889                 } else {
 890                         char buf[4];
 891                         snprintf(buf, 4, "%d", int(program_number));
 892                         add_pgm_change(program_change, buf);
 893                 }
 894         }
 895 }
 896
 897 void
 898 MidiRegionView::display_sysexes()
 899 {
 900         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
 901                 Evoral::MusicalTime time = (*i)->time();
 902                 assert(time >= 0);
 903
 904                 ostringstream str;
 905                 str << hex;
 906                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
 907                         str << int((*i)->buffer()[b]);
 908                         if (b != (*i)->size() -1) {
 909                                 str << " ";
 910                         }
 911                 }
 912                 string text = str.str();
 913
 914                 ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 915
 916                 const double x = trackview.editor().frame_to_pixel(beats_to_frames(time));
 917
 918                 double height = midi_stream_view()->contents_height();
 919
 920                 boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
 921                                 new CanvasSysEx(*this, *group, text, height, x, 1.0));
 922
 923                 // Show unless program change is beyond the region bounds
 924                 if (time - _region->start() >= _region->length() || time < _region->start()) {
 925                         sysex->hide();
 926                 } else {
 927                         sysex->show();
 928                 }
 929
 930                 _sys_exes.push_back(sysex);
 931         }
 932 }
 933
 934
 935 MidiRegionView::~MidiRegionView ()
 936 {
 937         in_destructor = true;
 938
 939         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 940
 941         if (_active_notes) {
 942                 end_write();
 943         }
 944
 945         _selection.clear();
 946         clear_events();
 947         delete _note_group;
 948         delete _delta_command;
 949 }
 950
 951 void
 952 MidiRegionView::region_resized (Change what_changed)
 953 {
 954         RegionView::region_resized(what_changed);
 955
 956         if (what_changed & ARDOUR::PositionChanged) {
 957                 set_duration(_region->length(), 0);
 958                 if (_enable_display) {
 959                         redisplay_model();
 960                 }
 961         }
 962 }
 963
 964 void
 965 MidiRegionView::reset_width_dependent_items (double pixel_width)
 966 {
 967         RegionView::reset_width_dependent_items(pixel_width);
 968         assert(_pixel_width == pixel_width);
 969
 970         if (_enable_display) {
 971                 redisplay_model();
 972         }
 973 }
 974
 975 void
 976 MidiRegionView::set_height (double height)
 977 {
 978         static const double FUDGE = 2.0;
 979         const double old_height = _height;
 980         RegionView::set_height(height);
 981         _height = height - FUDGE;
 982
 983         apply_note_range(midi_stream_view()->lowest_note(),
 984                          midi_stream_view()->highest_note(),
 985                          height != old_height + FUDGE);
 986
 987         if (name_pixbuf) {
 988                 name_pixbuf->raise_to_top();
 989         }
 990 }
 991
 992
 993 /** Apply the current note range from the stream view
 994  * by repositioning/hiding notes as necessary
 995  */
 996 void
 997 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
 998 {
 999         if (!_enable_display) {
1000                 return;
1001         }
1002
1003         if (!force && _current_range_min == min && _current_range_max == max) {
1004                 return;
1005         }
1006
1007         _current_range_min = min;
1008         _current_range_max = max;
1009
1010         for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
1011                 CanvasNoteEvent* event = *i;
1012                 boost::shared_ptr<NoteType> note (event->note());
1013
1014                 if (note->note() < _current_range_min ||
1015                     note->note() > _current_range_max) {
1016                         event->hide();
1017                 } else {
1018                         event->show();
1019                 }
1020
1021                 if (CanvasNote* cnote = dynamic_cast<CanvasNote*>(event)) {
1022
1023                         const double y1 = midi_stream_view()->note_to_y(note->note());
1024                         const double y2 = y1 + floor(midi_stream_view()->note_height());
1025
1026                         cnote->property_y1() = y1;
1027                         cnote->property_y2() = y2;
1028
1029                 } else if (CanvasHit* chit = dynamic_cast<CanvasHit*>(event)) {
1030
1031                         double x = trackview.editor().frame_to_pixel(
1032                                 beats_to_frames(note->time()) - _region->start());
1033                         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1034                         double y = midi_stream_view()->note_to_y(event->note()->note())
1035                                 + ((diamond_size-2.0) / 4.0);
1036
1037                         chit->set_height (diamond_size);
1038                         chit->move (x - chit->x1(), y - chit->y1());
1039                         chit->show ();
1040                 }
1041         }
1042 }
1043
1044 GhostRegion*
1045 MidiRegionView::add_ghost (TimeAxisView& tv)
1046 {
1047         CanvasNote* note;
1048
1049         double unit_position = _region->position () / samples_per_unit;
1050         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
1051         MidiGhostRegion* ghost;
1052
1053         if (mtv && mtv->midi_view()) {
1054                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
1055                    to allow having midi notes on top of note lines and waveforms.
1056                  */
1057                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
1058         } else {
1059                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
1060         }
1061
1062         ghost->set_height ();
1063         ghost->set_duration (_region->length() / samples_per_unit);
1064         ghosts.push_back (ghost);
1065
1066         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1067                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
1068                         ghost->add_note(note);
1069                 }
1070         }
1071
1072         ghost->GoingAway.connect (mem_fun(*this, &MidiRegionView::remove_ghost));
1073
1074         return ghost;
1075 }
1076
1077
1078 /** Begin tracking note state for successive calls to add_event
1079  */
1080 void
1081 MidiRegionView::begin_write()
1082 {
1083         assert(!_active_notes);
1084         _active_notes = new CanvasNote*[128];
1085         for (unsigned i=0; i < 128; ++i) {
1086                 _active_notes[i] = 0;
1087         }
1088 }
1089
1090
1091 /** Destroy note state for add_event
1092  */
1093 void
1094 MidiRegionView::end_write()
1095 {
1096         delete[] _active_notes;
1097         _active_notes = 0;
1098         _marked_for_selection.clear();
1099         _marked_for_velocity.clear();
1100 }
1101
1102
1103 /** Resolve an active MIDI note (while recording).
1104  */
1105 void
1106 MidiRegionView::resolve_note(uint8_t note, double end_time)
1107 {
1108         if (midi_view()->note_mode() != Sustained) {
1109                 return;
1110         }
1111
1112         if (_active_notes && _active_notes[note]) {
1113                 const nframes64_t end_time_frames = beats_to_frames(end_time);
1114                 _active_notes[note]->property_x2() = trackview.editor().frame_to_pixel(end_time_frames);
1115                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
1116                 _active_notes[note] = 0;
1117         }
1118 }
1119
1120
1121 /** Extend active notes to rightmost edge of region (if length is changed)
1122  */
1123 void
1124 MidiRegionView::extend_active_notes()
1125 {
1126         if (!_active_notes) {
1127                 return;
1128         }
1129
1130         for (unsigned i=0; i < 128; ++i) {
1131                 if (_active_notes[i]) {
1132                         _active_notes[i]->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1133                 }
1134         }
1135 }
1136
1137 void
1138 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1139 {
1140         if (!trackview.editor().sound_notes()) {
1141                 return;
1142         }
1143
1144         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1145         assert(route_ui);
1146
1147         route_ui->midi_track()->write_immediate_event(
1148                         note->on_event().size(), note->on_event().buffer());
1149
1150         const double note_length_beats = (note->off_event().time() - note->on_event().time());
1151         nframes_t note_length_ms = beats_to_frames(note_length_beats)
1152                         * (1000 / (double)route_ui->session().nominal_frame_rate());
1153         Glib::signal_timeout().connect(bind(mem_fun(this, &MidiRegionView::play_midi_note_off), note),
1154                         note_length_ms, G_PRIORITY_DEFAULT);
1155 }
1156
1157 bool
1158 MidiRegionView::play_midi_note_off(boost::shared_ptr<NoteType> note)
1159 {
1160         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1161         assert(route_ui);
1162
1163         route_ui->midi_track()->write_immediate_event(
1164                         note->off_event().size(), note->off_event().buffer());
1165
1166         return false;
1167 }
1168
1169 bool
1170 MidiRegionView::note_in_region_range(const boost::shared_ptr<NoteType> note, bool& visible) const
1171 {
1172         const nframes64_t note_start_frames = beats_to_frames(note->time());
1173
1174         bool outside = (note_start_frames - _region->start() >= _region->length()) ||
1175                 (note_start_frames < _region->start());
1176
1177         visible = (note->note() >= midi_stream_view()->lowest_note()) &&
1178                 (note->note() <= midi_stream_view()->highest_note());
1179
1180         return !outside;
1181 }
1182
1183 void
1184 MidiRegionView::update_note (CanvasNote* ev)
1185 {
1186         boost::shared_ptr<NoteType> note = ev->note();
1187
1188         const nframes64_t note_start_frames = beats_to_frames(note->time());
1189         const nframes64_t note_end_frames   = beats_to_frames(note->end_time());
1190
1191         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1192         const double y1 = midi_stream_view()->note_to_y(note->note());
1193         const double note_endpixel =
1194                 trackview.editor().frame_to_pixel(note_end_frames - _region->start());
1195
1196         ev->property_x1() = x;
1197         ev->property_y1() = y1;
1198         if (note->length() > 0) {
1199                 ev->property_x2() = note_endpixel;
1200         } else {
1201                 ev->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1202         }
1203         ev->property_y2() = y1 + floor(midi_stream_view()->note_height());
1204
1205         if (note->length() == 0) {
1206                 if (_active_notes) {
1207                         assert(note->note() < 128);
1208                         // If this note is already active there's a stuck note,
1209                         // finish the old note rectangle
1210                         if (_active_notes[note->note()]) {
1211                                 CanvasNote* const old_rect = _active_notes[note->note()];
1212                                 boost::shared_ptr<NoteType> old_note = old_rect->note();
1213                                 old_rect->property_x2() = x;
1214                                 old_rect->property_outline_what() = (guint32) 0xF;
1215                         }
1216                         _active_notes[note->note()] = ev;
1217                 }
1218                 /* outline all but right edge */
1219                 ev->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
1220         } else {
1221                 /* outline all edges */
1222                 ev->property_outline_what() = (guint32) 0xF;
1223         }
1224 }
1225
1226 void
1227 MidiRegionView::update_hit (CanvasHit* ev)
1228 {
1229         boost::shared_ptr<NoteType> note = ev->note();
1230
1231         const nframes64_t note_start_frames = beats_to_frames(note->time());
1232         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1233         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1234         const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
1235
1236         ev->move_to (x, y);
1237 }
1238
1239 /** Add a MIDI note to the view (with length).
1240  *
1241  * If in sustained mode, notes with length 0 will be considered active
1242  * notes, and resolve_note should be called when the corresponding note off
1243  * event arrives, to properly display the note.
1244  */
1245 void
1246 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
1247 {
1248         CanvasNoteEvent* event = 0;
1249
1250         assert(note->time() >= 0);
1251         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
1252
1253         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1254
1255         if (midi_view()->note_mode() == Sustained) {
1256
1257                 CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
1258
1259                 update_note (ev_rect);
1260
1261                 event = ev_rect;
1262
1263                 MidiGhostRegion* gr;
1264
1265                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1266                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1267                                 gr->add_note(ev_rect);
1268                         }
1269                 }
1270
1271         } else if (midi_view()->note_mode() == Percussive) {
1272
1273                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
1274
1275                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size, note);
1276
1277                 update_hit (ev_diamond);
1278
1279                 event = ev_diamond;
1280
1281         } else {
1282                 event = 0;
1283         }
1284
1285         if (event) {
1286                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1287                         note_selected(event, true);
1288                 }
1289
1290                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1291                         event->show_velocity();
1292                 }
1293                 event->on_channel_selection_change(_last_channel_selection);
1294                 _events.push_back(event);
1295
1296                 if (visible) {
1297                         event->show();
1298                 } else {
1299                         event->hide ();
1300                 }
1301         }
1302 }
1303
1304 void
1305 MidiRegionView::add_note (uint8_t channel, uint8_t number, uint8_t velocity,
1306                           Evoral::MusicalTime pos, Evoral::MusicalTime len)
1307 {
1308         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
1309
1310         start_delta_command (_("step add"));
1311         delta_add_note (new_note, true, false);
1312         apply_delta();
1313
1314         /* potentially extend region to hold new note */
1315
1316         nframes64_t end_frame = _region->position() + beats_to_frames (new_note->end_time());
1317         nframes64_t region_end = _region->position() + _region->length() - 1;
1318
1319         if (end_frame > region_end) {
1320                 _region->set_length (end_frame, this);
1321         } else {
1322                 redisplay_model ();
1323         }
1324 }
1325
1326 void
1327 MidiRegionView::add_pgm_change(PCEvent& program, const string& displaytext)
1328 {
1329         assert(program.time >= 0);
1330
1331         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1332         const double x = trackview.editor().frame_to_pixel(beats_to_frames(program.time));
1333
1334         double height = midi_stream_view()->contents_height();
1335
1336         boost::shared_ptr<CanvasProgramChange> pgm_change = boost::shared_ptr<CanvasProgramChange>(
1337                         new CanvasProgramChange(*this, *group,
1338                                         displaytext,
1339                                         height,
1340                                         x, 1.0,
1341                                         _model_name,
1342                                         _custom_device_mode,
1343                                         program.time, program.channel, program.value));
1344
1345         // Show unless program change is beyond the region bounds
1346         if (program.time - _region->start() >= _region->length() || program.time < _region->start()) {
1347                 pgm_change->hide();
1348         } else {
1349                 pgm_change->show();
1350         }
1351
1352         _pgm_changes.push_back(pgm_change);
1353 }
1354
1355 void
1356 MidiRegionView::get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key)
1357 {
1358         cerr << "getting patch key at " << time << " for channel " << channel << endl;
1359         Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
1360         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1361         float msb = -1.0;
1362         if (msb_control != 0) {
1363                 msb = int(msb_control->get_float(true, time));
1364                 cerr << "got msb " << msb;
1365         }
1366
1367         Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
1368         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1369         float lsb = -1.0;
1370         if (lsb_control != 0) {
1371                 lsb = lsb_control->get_float(true, time);
1372                 cerr << " got lsb " << lsb;
1373         }
1374
1375         Evoral::Parameter program_change(MidiPgmChangeAutomation, channel, 0);
1376         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1377         float program_number = -1.0;
1378         if (program_control != 0) {
1379                 program_number = program_control->get_float(true, time);
1380                 cerr << " got program " << program_number << endl;
1381         }
1382
1383         key.msb = (int) floor(msb + 0.5);
1384         key.lsb = (int) floor(lsb + 0.5);
1385         key.program_number = (int) floor(program_number + 0.5);
1386         assert(key.is_sane());
1387 }
1388
1389
1390 void
1391 MidiRegionView::alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch)
1392 {
1393         // TODO: Get the real event here and alter them at the original times
1394         Evoral::Parameter bank_select_msb(MidiCCAutomation, old_program.channel, MIDI_CTL_MSB_BANK);
1395         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1396         if (msb_control != 0) {
1397                 msb_control->set_float(float(new_patch.msb), true, old_program.time);
1398         }
1399
1400         // TODO: Get the real event here and alter them at the original times
1401         Evoral::Parameter bank_select_lsb(MidiCCAutomation, old_program.channel, MIDI_CTL_LSB_BANK);
1402         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1403         if (lsb_control != 0) {
1404                 lsb_control->set_float(float(new_patch.lsb), true, old_program.time);
1405         }
1406
1407         Evoral::Parameter program_change(MidiPgmChangeAutomation, old_program.channel, 0);
1408         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1409
1410         assert(program_control != 0);
1411         program_control->set_float(float(new_patch.program_number), true, old_program.time);
1412
1413         redisplay_model();
1414 }
1415
1416 void
1417 MidiRegionView::program_selected(CanvasProgramChange& program, const MIDI::Name::PatchPrimaryKey& new_patch)
1418 {
1419         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1420         alter_program_change(program_change_event, new_patch);
1421 }
1422
1423 void
1424 MidiRegionView::previous_program(CanvasProgramChange& program)
1425 {
1426         MIDI::Name::PatchPrimaryKey key;
1427         get_patch_key_at(program.event_time(), program.channel(), key);
1428
1429         boost::shared_ptr<MIDI::Name::Patch> patch =
1430                 MIDI::Name::MidiPatchManager::instance().previous_patch(
1431                                 _model_name,
1432                                 _custom_device_mode,
1433                                 program.channel(),
1434                                 key);
1435
1436         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1437         if (patch) {
1438                 alter_program_change(program_change_event, patch->patch_primary_key());
1439         }
1440 }
1441
1442 void
1443 MidiRegionView::next_program(CanvasProgramChange& program)
1444 {
1445         MIDI::Name::PatchPrimaryKey key;
1446         get_patch_key_at(program.event_time(), program.channel(), key);
1447
1448         boost::shared_ptr<MIDI::Name::Patch> patch =
1449                 MIDI::Name::MidiPatchManager::instance().next_patch(
1450                                 _model_name,
1451                                 _custom_device_mode,
1452                                 program.channel(),
1453                                 key);
1454
1455         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1456         if (patch) {
1457                 alter_program_change(program_change_event, patch->patch_primary_key());
1458         }
1459 }
1460
1461 void
1462 MidiRegionView::delete_selection()
1463 {
1464         if (_selection.empty()) {
1465                 return;
1466         }
1467
1468         start_delta_command (_("delete selection"));
1469
1470         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1471                 if ((*i)->selected()) {
1472                         _delta_command->remove((*i)->note());
1473                 }
1474         }
1475
1476         _selection.clear();
1477
1478         apply_delta ();
1479 }
1480
1481 void
1482 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev)
1483 {
1484         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1485                 if ((*i)->selected() && (*i) != ev) {
1486                         (*i)->selected(false);
1487                         (*i)->hide_velocity();
1488                 }
1489         }
1490
1491         _selection.clear();
1492 }
1493
1494 void
1495 MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
1496 {
1497         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
1498                 if ((*i) != ev) {
1499
1500                         Selection::iterator tmp = i;
1501                         ++tmp;
1502
1503                         (*i)->selected (false);
1504                         _selection.erase (i);
1505
1506                         i = tmp;
1507
1508                 } else {
1509                         ++i;
1510                 }
1511         }
1512
1513         /* don't bother with removing this regionview from the editor selection,
1514            since we're about to add another note, and thus put/keep this
1515            regionview in the editor selection.
1516         */
1517
1518         if (!ev->selected()) {
1519                 add_to_selection (ev);
1520         }
1521 }
1522
1523 void
1524 MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
1525 {
1526         if (!add) {
1527                 clear_selection_except(ev);
1528         }
1529
1530         if (!extend) {
1531
1532                 if (!ev->selected()) {
1533                         add_to_selection (ev);
1534                 }
1535
1536         } else {
1537                 /* find end of latest note selected, select all between that and the start of "ev" */
1538
1539                 Evoral::MusicalTime earliest = DBL_MAX;
1540                 Evoral::MusicalTime latest = 0;
1541
1542                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1543                         if ((*i)->note()->end_time() > latest) {
1544                                 latest = (*i)->note()->end_time();
1545                         }
1546                         if ((*i)->note()->time() < earliest) {
1547                                 earliest = (*i)->note()->time();
1548                         }
1549                 }
1550
1551                 if (ev->note()->end_time() > latest) {
1552                         latest = ev->note()->end_time();
1553                 }
1554
1555                 if (ev->note()->time() < earliest) {
1556                         earliest = ev->note()->time();
1557                 }
1558
1559                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1560
1561                         /* find notes entirely within OR spanning the earliest..latest range */
1562
1563                         if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
1564                             ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
1565                                 add_to_selection (*i);
1566                         }
1567
1568 #if 0
1569                         /* if events were guaranteed to be time sorted, we could do this.
1570                            but as of sept 10th 2009, they no longer are.
1571                         */
1572
1573                         if ((*i)->note()->time() > latest) {
1574                                 break;
1575                         }
1576 #endif
1577                 }
1578         }
1579 }
1580
1581 void
1582 MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev)
1583 {
1584         remove_from_selection (ev);
1585 }
1586
1587 void
1588 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
1589 {
1590         if (x1 > x2) {
1591                 swap (x1, x2);
1592         }
1593
1594         if (y1 > y2) {
1595                 swap (y1, y2);
1596         }
1597
1598         // TODO: Make this faster by storing the last updated selection rect, and only
1599         // adjusting things that are in the area that appears/disappeared.
1600         // We probably need a tree to be able to find events in O(log(n)) time.
1601
1602         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1603
1604                 /* check if any corner of the note is inside the rect
1605
1606                    Notes:
1607                      1) this is computing "touched by", not "contained by" the rect.
1608                      2) this does not require that events be sorted in time.
1609                  */
1610
1611                 const double ix1 = (*i)->x1();
1612                 const double ix2 = (*i)->x2();
1613                 const double iy1 = (*i)->y1();
1614                 const double iy2 = (*i)->y2();
1615
1616                 if ((ix1 >= x1 && ix1 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1617                     (ix1 >= x1 && ix1 <= x2 && iy2 >= y1 && iy2 <= y2) ||
1618                     (ix2 >= x1 && ix2 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1619                     (ix2 >= x1 && ix2 <= x2 && iy2 >= y1 && iy2 <= y2)) {
1620
1621                         // Inside rectangle
1622                         if (!(*i)->selected()) {
1623                                 add_to_selection (*i);
1624                         }
1625                 } else if ((*i)->selected()) {
1626                         // Not inside rectangle
1627                         remove_from_selection (*i);
1628                 }
1629         }
1630 }
1631
1632 void
1633 MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
1634 {
1635         Selection::iterator i = _selection.find (ev);
1636
1637         if (i != _selection.end()) {
1638                 _selection.erase (i);
1639         }
1640
1641         ev->selected (false);
1642         ev->hide_velocity ();
1643
1644         if (_selection.empty()) {
1645                 PublicEditor& editor (trackview.editor());
1646                 editor.get_selection().remove (this);
1647         }
1648 }
1649
1650 void
1651 MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
1652 {
1653         bool add_mrv_selection = false;
1654
1655         if (_selection.empty()) {
1656                 add_mrv_selection = true;
1657         }
1658
1659         if (_selection.insert (ev).second) {
1660                 ev->selected (true);
1661                 play_midi_note ((ev)->note());
1662         }
1663
1664         if (add_mrv_selection) {
1665                 PublicEditor& editor (trackview.editor());
1666                 editor.get_selection().add (this);
1667         }
1668 }
1669
1670 void
1671 MidiRegionView::move_selection(double dx, double dy)
1672 {
1673         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1674                 (*i)->move_event(dx, dy);
1675         }
1676 }
1677
1678 void
1679 MidiRegionView::note_dropped(CanvasNoteEvent *, double dt, int8_t dnote)
1680 {
1681         assert (!_selection.empty());
1682
1683         uint8_t lowest_note_in_selection  = 127;
1684         uint8_t highest_note_in_selection = 0;
1685         uint8_t highest_note_difference = 0;
1686
1687         // find highest and lowest notes first
1688
1689         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1690                 uint8_t pitch = (*i)->note()->note();
1691                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
1692                 highest_note_in_selection = std::max(highest_note_in_selection, pitch);
1693         }
1694
1695         /*
1696         cerr << "dnote: " << (int) dnote << endl;
1697         cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
1698              << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
1699         cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
1700              << int(highest_note_in_selection) << endl;
1701         cerr << "selection size: " << _selection.size() << endl;
1702         cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
1703         */
1704
1705         // Make sure the note pitch does not exceed the MIDI standard range
1706         if (highest_note_in_selection + dnote > 127) {
1707                 highest_note_difference = highest_note_in_selection - 127;
1708         }
1709
1710         start_diff_command(_("move notes"));
1711
1712         for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
1713
1714                 nframes64_t start_frames = beats_to_frames((*i)->note()->time());
1715
1716                 if (dt >= 0) {
1717                         start_frames += snap_frame_to_frame(trackview.editor().pixel_to_frame(dt));
1718                 } else {
1719                         start_frames -= snap_frame_to_frame(trackview.editor().pixel_to_frame(-dt));
1720                 }
1721
1722                 Evoral::MusicalTime new_time = frames_to_beats(start_frames);
1723
1724                 if (new_time < 0) {
1725                         continue;
1726                 }
1727
1728                 diff_add_change (*i, MidiModel::DiffCommand::StartTime, new_time);
1729
1730                 uint8_t original_pitch = (*i)->note()->note();
1731                 uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
1732
1733                 // keep notes in standard midi range
1734                 clamp_to_0_127(new_pitch);
1735
1736                 // keep original pitch if note is dragged outside valid midi range
1737                 if ((original_pitch != 0 && new_pitch == 0)
1738                                 || (original_pitch != 127 && new_pitch == 127)) {
1739                         new_pitch = original_pitch;
1740                 }
1741
1742                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
1743                 highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
1744
1745                 diff_add_change (*i, MidiModel::DiffCommand::NoteNumber, new_pitch);
1746         }
1747
1748         apply_diff();
1749
1750         // care about notes being moved beyond the upper/lower bounds on the canvas
1751         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
1752             highest_note_in_selection > midi_stream_view()->highest_note()) {
1753                 midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
1754         }
1755 }
1756
1757 nframes64_t
1758 MidiRegionView::snap_pixel_to_frame(double x)
1759 {
1760         PublicEditor& editor = trackview.editor();
1761         // x is region relative, convert it to global absolute frames
1762         nframes64_t frame = editor.pixel_to_frame(x) + _region->position();
1763         editor.snap_to(frame);
1764         return frame - _region->position(); // convert back to region relative
1765 }
1766
1767 nframes64_t
1768 MidiRegionView::snap_frame_to_frame(nframes64_t x)
1769 {
1770         PublicEditor& editor = trackview.editor();
1771         // x is region relative, convert it to global absolute frames
1772         nframes64_t frame = x + _region->position();
1773         editor.snap_to(frame);
1774         return frame - _region->position(); // convert back to region relative
1775 }
1776
1777 double
1778 MidiRegionView::snap_to_pixel(double x)
1779 {
1780         return (double) trackview.editor().frame_to_pixel(snap_pixel_to_frame(x));
1781 }
1782
1783 double
1784 MidiRegionView::get_position_pixels()
1785 {
1786         nframes64_t region_frame = get_position();
1787         return trackview.editor().frame_to_pixel(region_frame);
1788 }
1789
1790 double
1791 MidiRegionView::get_end_position_pixels()
1792 {
1793         nframes64_t frame = get_position() + get_duration ();
1794         return trackview.editor().frame_to_pixel(frame);
1795 }
1796
1797 nframes64_t
1798 MidiRegionView::beats_to_frames(double beats) const
1799 {
1800         return _time_converter.to(beats);
1801 }
1802
1803 double
1804 MidiRegionView::frames_to_beats(nframes64_t frames) const
1805 {
1806         return _time_converter.from(frames);
1807 }
1808
1809 void
1810 MidiRegionView::begin_resizing (bool /*at_front*/)
1811 {
1812         _resize_data.clear();
1813
1814         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1815                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
1816
1817                 // only insert CanvasNotes into the map
1818                 if (note) {
1819                         NoteResizeData *resize_data = new NoteResizeData();
1820                         resize_data->canvas_note = note;
1821
1822                         // create a new SimpleRect from the note which will be the resize preview
1823                         SimpleRect *resize_rect = new SimpleRect(
1824                                         *group, note->x1(), note->y1(), note->x2(), note->y2());
1825
1826                         // calculate the colors: get the color settings
1827                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
1828                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(),
1829                                         128);
1830
1831                         // make the resize preview notes more transparent and bright
1832                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
1833
1834                         // calculate color based on note velocity
1835                         resize_rect->property_fill_color_rgba() = UINT_INTERPOLATE(
1836                                         CanvasNoteEvent::meter_style_fill_color(note->note()->velocity()),
1837                                         fill_color,
1838                                         0.85);
1839
1840                         resize_rect->property_outline_color_rgba() = CanvasNoteEvent::calculate_outline(
1841                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get());
1842
1843                         resize_data->resize_rect = resize_rect;
1844                         _resize_data.push_back(resize_data);
1845                 }
1846         }
1847 }
1848
1849 void
1850 MidiRegionView::update_resizing (bool at_front, double delta_x, bool relative)
1851 {
1852         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1853                 SimpleRect* resize_rect = (*i)->resize_rect;
1854                 CanvasNote* canvas_note = (*i)->canvas_note;
1855                 double current_x;
1856
1857                 if (at_front) {
1858                         if (relative) {
1859                                 current_x = canvas_note->x1() + delta_x;
1860                         } else {
1861                                 // x is in track relative, transform it to region relative
1862                                 current_x = delta_x - get_position_pixels();
1863                         }
1864                 } else {
1865                         if (relative) {
1866                                 current_x = canvas_note->x2() + delta_x;
1867                         } else {
1868                                 // x is in track relative, transform it to region relative
1869                                 current_x = delta_x - get_end_position_pixels ();
1870                         }
1871                 }
1872
1873                 if (at_front) {
1874                         resize_rect->property_x1() = snap_to_pixel(current_x);
1875                         resize_rect->property_x2() = canvas_note->x2();
1876                 } else {
1877                         resize_rect->property_x2() = snap_to_pixel(current_x);
1878                         resize_rect->property_x1() = canvas_note->x1();
1879                 }
1880         }
1881 }
1882
1883 void
1884 MidiRegionView::commit_resizing (bool at_front, double delta_x, bool relative)
1885 {
1886         start_diff_command(_("resize notes"));
1887
1888         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1889                 CanvasNote*  canvas_note = (*i)->canvas_note;
1890                 SimpleRect*  resize_rect = (*i)->resize_rect;
1891                 const double region_start = get_position_pixels();
1892                 double current_x;
1893
1894                 if (at_front) {
1895                         if (relative) {
1896                                 current_x = canvas_note->x1() + delta_x;
1897                         } else {
1898                                 // x is in track relative, transform it to region relative
1899                                 current_x = region_start + delta_x;
1900                         }
1901                 } else {
1902                         if (relative) {
1903                                 current_x = canvas_note->x2() + delta_x;
1904                         } else {
1905                                 // x is in track relative, transform it to region relative
1906                                 current_x = region_start + delta_x;
1907                         }
1908                 }
1909
1910                 current_x = snap_pixel_to_frame (current_x);
1911                 current_x = frames_to_beats (current_x);
1912
1913                 if (at_front && current_x < canvas_note->note()->end_time()) {
1914                         diff_add_change (canvas_note, MidiModel::DiffCommand::StartTime, current_x);
1915
1916                         double len = canvas_note->note()->time() - current_x;
1917                         len += canvas_note->note()->length();
1918
1919                         if (len > 0) {
1920                                 /* XXX convert to beats */
1921                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
1922                         }
1923                 }
1924
1925                 if (!at_front) {
1926                         double len = current_x - canvas_note->note()->time();
1927
1928                         if (len > 0) {
1929                                 /* XXX convert to beats */
1930                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
1931                         }
1932                 }
1933
1934                 delete resize_rect;
1935                 delete (*i);
1936         }
1937
1938         _resize_data.clear();
1939         apply_diff();
1940 }
1941
1942 void
1943 MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bool relative)
1944 {
1945         uint8_t new_velocity;
1946
1947         if (relative) {
1948                 new_velocity = event->note()->velocity() + velocity;
1949                 clamp_to_0_127(new_velocity);
1950         } else {
1951                 new_velocity = velocity;
1952         }
1953
1954         diff_add_change (event, MidiModel::DiffCommand::Velocity, new_velocity);
1955 }
1956
1957 void
1958 MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool relative)
1959 {
1960         uint8_t new_note;
1961
1962         if (relative) {
1963                 new_note = event->note()->note() + note;
1964         } else {
1965                 new_note = note;
1966         }
1967
1968         clamp_to_0_127 (new_note);
1969         diff_add_change (event, MidiModel::DiffCommand::NoteNumber, new_note);
1970 }
1971
1972 void
1973 MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
1974 {
1975         bool change_start = false;
1976         bool change_length = false;
1977         Evoral::MusicalTime new_start;
1978         Evoral::MusicalTime new_length;
1979
1980         /* NOTE: the semantics of the two delta arguments are slightly subtle:
1981
1982            front_delta: if positive - move the start of the note later in time (shortening it)
1983                         if negative - move the start of the note earlier in time (lengthening it)
1984
1985            end_delta:   if positive - move the end of the note later in time (lengthening it)
1986                         if negative - move the end of the note earlier in time (shortening it)
1987          */
1988
1989         if (front_delta) {
1990                 if (front_delta < 0) {
1991
1992                         if (event->note()->time() < -front_delta) {
1993                                 new_start = 0;
1994                         } else {
1995                                 new_start = event->note()->time() + front_delta; // moves earlier
1996                         }
1997
1998                         /* start moved toward zero, so move the end point out to where it used to be.
1999                            Note that front_delta is negative, so this increases the length.
2000                         */
2001
2002                         new_length = event->note()->length() - front_delta;
2003                         change_start = true;
2004                         change_length = true;
2005
2006                 } else {
2007
2008                         Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
2009
2010                         if (new_pos < event->note()->end_time()) {
2011                                 new_start = event->note()->time() + front_delta;
2012                                 /* start moved toward the end, so move the end point back to where it used to be */
2013                                 new_length = event->note()->length() - front_delta;
2014                                 change_start = true;
2015                                 change_length = true;
2016                         }
2017                 }
2018
2019         }
2020
2021         if (end_delta) {
2022                 bool can_change = true;
2023                 if (end_delta < 0) {
2024                         if (event->note()->length() < -end_delta) {
2025                                 can_change = false;
2026                         }
2027                 }
2028
2029                 if (can_change) {
2030                         new_length = event->note()->length() + end_delta;
2031                         change_length = true;
2032                 }
2033         }
2034
2035         if (change_start) {
2036                 diff_add_change (event, MidiModel::DiffCommand::StartTime, new_start);
2037         }
2038
2039         if (change_length) {
2040                 diff_add_change (event, MidiModel::DiffCommand::Length, new_length);
2041         }
2042 }
2043
2044 void
2045 MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime delta, bool relative)
2046 {
2047         Evoral::MusicalTime new_time;
2048
2049         if (relative) {
2050                 if (delta < 0.0) {
2051                         if (event->note()->time() < -delta) {
2052                                 new_time = 0;
2053                         } else {
2054                                 new_time = event->note()->time() + delta;
2055                         }
2056                 } else {
2057                         new_time = event->note()->time() + delta;
2058                 }
2059         } else {
2060                 new_time = delta;
2061         }
2062
2063         diff_add_change (event, MidiModel::DiffCommand::StartTime, new_time);
2064 }
2065
2066 void
2067 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
2068 {
2069         int8_t delta;
2070
2071         if (_selection.empty()) {
2072                 return;
2073         }
2074
2075         if (fine) {
2076                 delta = 1;
2077         } else {
2078                 delta = 10;
2079         }
2080
2081         if (!up) {
2082                 delta = -delta;
2083         }
2084
2085         if (!allow_smush) {
2086                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2087                         if ((*i)->note()->velocity() + delta == 0 || (*i)->note()->velocity() + delta == 127) {
2088                                 return;
2089                         }
2090                 }
2091         }
2092
2093         start_diff_command(_("change velocities"));
2094
2095         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
2096                 Selection::iterator next = i;
2097                 ++next;
2098                 change_note_velocity (*i, delta, true);
2099                 i = next;
2100         }
2101
2102         apply_diff();
2103 }
2104
2105
2106 void
2107 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
2108 {
2109         if (_selection.empty()) {
2110                 return;
2111         }
2112
2113         int8_t delta;
2114
2115         if (fine) {
2116                 delta = 1;
2117         } else {
2118                 delta = 12;
2119         }
2120
2121         if (!up) {
2122                 delta = -delta;
2123         }
2124
2125         if (!allow_smush) {
2126                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2127                         if (!up) {
2128                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
2129                                         return;
2130                                 }
2131                         } else {
2132                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
2133                                         return;
2134                                 }
2135                         }
2136                 }
2137         }
2138
2139         start_diff_command (_("transpose"));
2140
2141         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2142                 Selection::iterator next = i;
2143                 ++next;
2144                 change_note_note (*i, delta, true);
2145                 i = next;
2146         }
2147
2148         apply_diff ();
2149 }
2150
2151 void
2152 MidiRegionView::change_note_lengths (bool fine, bool shorter, bool start, bool end)
2153 {
2154         Evoral::MusicalTime delta;
2155
2156         if (fine) {
2157                 delta = 1.0/128.0;
2158         } else {
2159                 /* grab the current grid distance */
2160                 bool success;
2161                 delta = trackview.editor().get_grid_type_as_beats (success, _region->position());
2162                 if (!success) {
2163                         /* XXX cannot get grid type as beats ... should always be possible ... FIX ME */
2164                         cerr << "Grid type not available as beats - TO BE FIXED\n";
2165                         return;
2166                 }
2167         }
2168
2169         if (shorter) {
2170                 delta = -delta;
2171         }
2172
2173         start_diff_command (_("change note lengths"));
2174
2175         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2176                 Selection::iterator next = i;
2177                 ++next;
2178
2179                 /* note the negation of the delta for start */
2180
2181                 trim_note (*i, (start ? -delta : 0), (end ? delta : 0));
2182                 i = next;
2183         }
2184
2185         apply_diff ();
2186
2187 }
2188
2189 void
2190 MidiRegionView::nudge_notes (bool forward)
2191 {
2192         if (_selection.empty()) {
2193                 return;
2194         }
2195
2196         /* pick a note as the point along the timeline to get the nudge distance.
2197            its not necessarily the earliest note, so we may want to pull the notes out
2198            into a vector and sort before using the first one.
2199         */
2200
2201         nframes64_t ref_point = _region->position() + beats_to_frames ((*(_selection.begin()))->note()->time());
2202         nframes64_t unused;
2203         nframes64_t distance;
2204
2205         if ((distance = trackview.editor().get_nudge_distance (ref_point, unused)) == 0) {
2206
2207                 /* no nudge distance set - use grid */
2208
2209                 nframes64_t next_pos = ref_point;
2210
2211                 if (forward) {
2212                         /* XXX need check on max_frames, but that needs max_frames64 or something */
2213                         next_pos += 1;
2214                 } else {
2215                         if (next_pos == 0) {
2216                                 return;
2217                         }
2218                         next_pos -= 1;
2219                 }
2220
2221                 cerr << "ref point was " << ref_point << " next was " << next_pos;
2222                 trackview.editor().snap_to (next_pos, (forward ? 1 : -1), false);
2223                 distance = ref_point - next_pos;
2224                 cerr << " final is " << next_pos << " distance = " << distance << endl;
2225         }
2226
2227         if (distance == 0) {
2228                 return;
2229         }
2230
2231         Evoral::MusicalTime delta = frames_to_beats (fabs (distance));
2232
2233         if (!forward) {
2234                 delta = -delta;
2235         }
2236
2237         start_diff_command (_("nudge"));
2238
2239         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2240                 Selection::iterator next = i;
2241                 ++next;
2242                 change_note_time (*i, delta, true);
2243                 i = next;
2244         }
2245
2246         apply_diff ();
2247 }
2248
2249 void
2250 MidiRegionView::change_channel(uint8_t channel)
2251 {
2252         start_diff_command(_("change channel"));
2253         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2254                 diff_add_change (*i, MidiModel::DiffCommand::Channel, channel);
2255         }
2256         apply_diff();
2257 }
2258
2259
2260 void
2261 MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
2262 {
2263         if (_mouse_state == SelectTouchDragging) {
2264                 note_selected(ev, true);
2265         }
2266
2267         PublicEditor& editor (trackview.editor());
2268         char buf[4];
2269         snprintf (buf, sizeof (buf), "%d", (int) ev->note()->note());
2270         //editor.show_verbose_canvas_cursor_with (Evoral::midi_note_name (ev->note()->note()));
2271         editor.show_verbose_canvas_cursor_with (buf);
2272 }
2273
2274 void
2275 MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
2276 {
2277         PublicEditor& editor (trackview.editor());
2278         editor.hide_verbose_canvas_cursor ();
2279 }
2280
2281
2282 void
2283 MidiRegionView::switch_source(boost::shared_ptr<Source> src)
2284 {
2285         boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
2286         if (msrc)
2287                 display_model(msrc->model());
2288 }
2289
2290 void
2291 MidiRegionView::set_frame_color()
2292 {
2293         if (frame) {
2294                 if (_selected && should_show_selection) {
2295                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
2296                 } else {
2297                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
2298                 }
2299         }
2300 }
2301
2302 void
2303 MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
2304 {
2305         switch (mode) {
2306         case AllChannels:
2307         case FilterChannels:
2308                 _force_channel = -1;
2309                 break;
2310         case ForceChannel:
2311                 _force_channel = mask;
2312                 mask = 0xFFFF; // Show all notes as active (below)
2313         };
2314
2315         // Update notes for selection
2316         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2317                 (*i)->on_channel_selection_change(mask);
2318         }
2319
2320         _last_channel_selection = mask;
2321 }
2322
2323 void
2324 MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
2325 {
2326         _model_name         = model;
2327         _custom_device_mode = custom_device_mode;
2328         redisplay_model();
2329 }
2330
2331 void
2332 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
2333 {
2334         if (_selection.empty()) {
2335                 return;
2336         }
2337
2338         PublicEditor& editor (trackview.editor());
2339
2340         switch (op) {
2341         case Cut:
2342         case Copy:
2343                 editor.get_cut_buffer().add (selection_as_cut_buffer());
2344                 break;
2345         default:
2346                 break;
2347         }
2348
2349         start_delta_command();
2350
2351         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2352                 switch (op) {
2353                 case Copy:
2354                         break;
2355                 case Cut:
2356                         delta_remove_note (*i);
2357                         break;
2358                 case Clear:
2359                         break;
2360                 }
2361         }
2362
2363         apply_delta();
2364 }
2365
2366 MidiCutBuffer*
2367 MidiRegionView::selection_as_cut_buffer () const
2368 {
2369         Notes notes;
2370
2371         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2372                 notes.insert (boost::shared_ptr<NoteType> (new NoteType (*((*i)->note().get()))));
2373         }
2374
2375         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
2376         cb->set (notes);
2377
2378         return cb;
2379 }
2380
2381 void
2382 MidiRegionView::paste (nframes64_t pos, float times, const MidiCutBuffer& mcb)
2383 {
2384         if (mcb.empty()) {
2385                 return;
2386         }
2387
2388         start_delta_command (_("paste"));
2389
2390         Evoral::MusicalTime beat_delta;
2391         Evoral::MusicalTime paste_pos_beats;
2392         Evoral::MusicalTime duration;
2393         Evoral::MusicalTime end_point;
2394
2395         duration = (*mcb.notes().rbegin())->end_time() - (*mcb.notes().begin())->time();
2396         paste_pos_beats = frames_to_beats (pos - _region->position());
2397         beat_delta = (*mcb.notes().begin())->time() - paste_pos_beats;
2398         paste_pos_beats = 0;
2399
2400         _selection.clear ();
2401
2402         for (int n = 0; n < (int) times; ++n) {
2403
2404                 for (Notes::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
2405
2406                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
2407                         copied_note->set_time (paste_pos_beats + copied_note->time() - beat_delta);
2408
2409                         /* make all newly added notes selected */
2410
2411                         delta_add_note (copied_note, true);
2412                         end_point = copied_note->end_time();
2413                 }
2414
2415                 paste_pos_beats += duration;
2416         }
2417
2418         /* if we pasted past the current end of the region, extend the region */
2419
2420         nframes64_t end_frame = _region->position() + beats_to_frames (end_point);
2421         nframes64_t region_end = _region->position() + _region->length() - 1;
2422
2423         if (end_frame > region_end) {
2424
2425                 trackview.session().begin_reversible_command (_("paste"));
2426
2427                 XMLNode& before (_region->get_state());
2428                 _region->set_length (end_frame, this);
2429                 trackview.session().add_command (new MementoCommand<Region>(*_region, &before, &_region->get_state()));
2430         }
2431
2432         apply_delta ();
2433 }
2434
2435 struct EventNoteTimeEarlyFirstComparator {
2436     bool operator() (CanvasNoteEvent* a, CanvasNoteEvent* b) {
2437             return a->note()->time() < b->note()->time();
2438     }
2439 };
2440
2441 void
2442 MidiRegionView::time_sort_events ()
2443 {
2444         if (!_sort_needed) {
2445                 return;
2446         }
2447
2448         EventNoteTimeEarlyFirstComparator cmp;
2449         _events.sort (cmp);
2450
2451         _sort_needed = false;
2452 }
2453
2454 void
2455 MidiRegionView::goto_next_note ()
2456 {
2457         // nframes64_t pos = -1;
2458         bool use_next = false;
2459
2460         if (_events.back()->selected()) {
2461                 return;
2462         }
2463
2464         time_sort_events ();
2465
2466         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2467                 if ((*i)->selected()) {
2468                         use_next = true;
2469                         continue;
2470                 } else if (use_next) {
2471                         unique_select (*i);
2472                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2473                         return;
2474                 }
2475         }
2476
2477         /* use the first one */
2478
2479         unique_select (_events.front());
2480
2481 }
2482
2483 void
2484 MidiRegionView::goto_previous_note ()
2485 {
2486         // nframes64_t pos = -1;
2487         bool use_next = false;
2488
2489         if (_events.front()->selected()) {
2490                 return;
2491         }
2492
2493         time_sort_events ();
2494
2495         for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
2496                 if ((*i)->selected()) {
2497                         use_next = true;
2498                         continue;
2499                 } else if (use_next) {
2500                         unique_select (*i);
2501                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2502                         return;
2503                 }
2504         }
2505
2506         /* use the last one */
2507
2508         unique_select (*(_events.rbegin()));
2509 }
2510
2511 void
2512 MidiRegionView::selection_as_notelist (Notes& selected)
2513 {
2514         time_sort_events ();
2515
2516         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2517                 if ((*i)->selected()) {
2518                         selected.insert ((*i)->note());
2519                 }
2520         }
2521 }