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 #include "ardour/session.h"
  41
  42 #include "evoral/Parameter.hpp"
  43 #include "evoral/Control.hpp"
  44
  45 #include "automation_region_view.h"
  46 #include "automation_time_axis.h"
  47 #include "canvas-hit.h"
  48 #include "canvas-note.h"
  49 #include "canvas-program-change.h"
  50 #include "ghostregion.h"
  51 #include "gui_thread.h"
  52 #include "keyboard.h"
  53 #include "midi_cut_buffer.h"
  54 #include "midi_list_editor.h"
  55 #include "midi_region_view.h"
  56 #include "midi_streamview.h"
  57 #include "midi_time_axis.h"
  58 #include "midi_time_axis.h"
  59 #include "midi_util.h"
  60 #include "public_editor.h"
  61 #include "selection.h"
  62 #include "simpleline.h"
  63 #include "streamview.h"
  64 #include "utils.h"
  65
  66 #include "i18n.h"
  67
  68 using namespace ARDOUR;
  69 using namespace PBD;
  70 using namespace Editing;
  71 using namespace ArdourCanvas;
  72 using Gtkmm2ext::Keyboard;
  73
  74 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  75                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
  76         : RegionView (parent, tv, r, spu, basic_color)
  77         , _force_channel(-1)
  78         , _last_channel_selection(0xFFFF)
  79         , _default_note_length(1.0)
  80         , _current_range_min(0)
  81         , _current_range_max(0)
  82         , _model_name(string())
  83         , _custom_device_mode(string())
  84         , _active_notes(0)
  85         , _note_group(new ArdourCanvas::Group(*parent))
  86         , _delta_command(0)
  87         , _diff_command(0)
  88         , _mouse_state(None)
  89         , _pressed_button(0)
  90         , _sort_needed (true)
  91         , _optimization_iterator (_events.end())
  92         , _list_editor (0)
  93 {
  94         _note_group->raise_to_top();
  95 }
  96
  97 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  98                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color,
  99                 TimeAxisViewItem::Visibility visibility)
 100         : RegionView (parent, tv, r, spu, basic_color, false, visibility)
 101         , _force_channel(-1)
 102         , _last_channel_selection(0xFFFF)
 103         , _default_note_length(1.0)
 104         , _model_name(string())
 105         , _custom_device_mode(string())
 106         , _active_notes(0)
 107         , _note_group(new ArdourCanvas::Group(*parent))
 108         , _delta_command(0)
 109         , _diff_command(0)
 110         , _mouse_state(None)
 111         , _pressed_button(0)
 112         , _sort_needed (true)
 113         , _optimization_iterator (_events.end())
 114         , _list_editor (0)
 115
 116 {
 117         _note_group->raise_to_top();
 118 }
 119
 120
 121 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 122         : sigc::trackable(other)
 123         , RegionView (other)
 124         , _force_channel(-1)
 125         , _last_channel_selection(0xFFFF)
 126         , _default_note_length(1.0)
 127         , _model_name(string())
 128         , _custom_device_mode(string())
 129         , _active_notes(0)
 130         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 131         , _delta_command(0)
 132         , _diff_command(0)
 133         , _mouse_state(None)
 134         , _pressed_button(0)
 135         , _sort_needed (true)
 136         , _optimization_iterator (_events.end())
 137         , _list_editor (0)
 138 {
 139         Gdk::Color c;
 140         int r,g,b,a;
 141
 142         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 143         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 144
 145         init (c, false);
 146 }
 147
 148 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 149         : RegionView (other, boost::shared_ptr<Region> (region))
 150         , _force_channel(-1)
 151         , _last_channel_selection(0xFFFF)
 152         , _default_note_length(1.0)
 153         , _model_name(string())
 154         , _custom_device_mode(string())
 155         , _active_notes(0)
 156         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 157         , _delta_command(0)
 158         , _diff_command(0)
 159         , _mouse_state(None)
 160         , _pressed_button(0)
 161         , _sort_needed (true)
 162         , _optimization_iterator (_events.end())
 163         , _list_editor (0)
 164 {
 165         Gdk::Color c;
 166         int r,g,b,a;
 167
 168         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 169         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 170
 171         init (c, true);
 172 }
 173
 174 void
 175 MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 176 {
 177         if (wfd) {
 178                 midi_region()->midi_source(0)->load_model();
 179         }
 180
 181         _model = midi_region()->midi_source(0)->model();
 182         _enable_display = false;
 183
 184         RegionView::init (basic_color, false);
 185
 186         compute_colors (basic_color);
 187
 188         set_height (trackview.current_height());
 189
 190         region_muted ();
 191         region_sync_changed ();
 192         region_resized (BoundsChanged);
 193         region_locked ();
 194
 195         reset_width_dependent_items (_pixel_width);
 196
 197         set_colors ();
 198
 199         _enable_display = true;
 200         if (_model) {
 201                 if (wfd) {
 202                         display_model (_model);
 203                 }
 204         }
 205
 206         group->raise_to_top();
 207         group->signal_event().connect (sigc::mem_fun (this, &MidiRegionView::canvas_event), false);
 208
 209         midi_view()->signal_channel_mode_changed().connect(
 210                         sigc::mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
 211
 212         midi_view()->signal_midi_patch_settings_changed().connect(
 213                         sigc::mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
 214 }
 215
 216 bool
 217 MidiRegionView::canvas_event(GdkEvent* ev)
 218 {
 219         PublicEditor& editor (trackview.editor());
 220
 221         if (!editor.internal_editing()) {
 222                 return false;
 223         }
 224
 225         static double drag_start_x, drag_start_y;
 226         static double last_x, last_y;
 227         double event_x, event_y;
 228         nframes64_t event_frame = 0;
 229         bool fine;
 230
 231         static ArdourCanvas::SimpleRect* drag_rect = 0;
 232
 233         /* XXX: note that as of August 2009, the GnomeCanvas does not propagate scroll events
 234            to its items, which means that ev->type == GDK_SCROLL will never be seen
 235         */
 236
 237         switch (ev->type) {
 238         case GDK_SCROLL:
 239                 fine = Keyboard::modifier_state_equals (ev->scroll.state, Keyboard::Level4Modifier);
 240
 241                 if (ev->scroll.direction == GDK_SCROLL_UP) {
 242                         change_velocities (true, fine, false);
 243                         return true;
 244                 } else if (ev->scroll.direction == GDK_SCROLL_DOWN) {
 245                         change_velocities (false, fine, false);
 246                         return true;
 247                 } else {
 248                         return false;
 249                 }
 250                 break;
 251
 252         case GDK_KEY_PRESS:
 253
 254                 /* since GTK bindings are generally activated on press, and since
 255                    detectable auto-repeat is the name of the game and only sends
 256                    repeated presses, carry out key actions at key press, not release.
 257                 */
 258
 259                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R){
 260                         _mouse_state = SelectTouchDragging;
 261                         return true;
 262
 263                 } else if (ev->key.keyval == GDK_Escape) {
 264                         clear_selection();
 265                         _mouse_state = None;
 266
 267                 } else if (ev->key.keyval == GDK_comma || ev->key.keyval == GDK_period) {
 268
 269                         bool start = (ev->key.keyval == GDK_comma);
 270                         bool end = (ev->key.keyval == GDK_period);
 271                         bool shorter = Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier);
 272                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 273
 274                         change_note_lengths (fine, shorter, start, end);
 275
 276                         return true;
 277
 278                 } else if (ev->key.keyval == GDK_Delete) {
 279
 280                         delete_selection();
 281                         return true;
 282
 283                 } else if (ev->key.keyval == GDK_Tab) {
 284
 285                         if (Keyboard::modifier_state_equals (ev->key.state, Keyboard::PrimaryModifier)) {
 286                                 goto_previous_note ();
 287                         } else {
 288                                 goto_next_note ();
 289                         }
 290                         return true;
 291
 292                 } else if (ev->key.keyval == GDK_Up) {
 293
 294                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 295                         bool fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 296
 297                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 298                                 change_velocities (true, fine, allow_smush);
 299                         } else {
 300                                 transpose (true, fine, allow_smush);
 301                         }
 302                         return true;
 303
 304                 } else if (ev->key.keyval == GDK_Down) {
 305
 306                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 307                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 308
 309                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 310                                 change_velocities (false, fine, allow_smush);
 311                         } else {
 312                                 transpose (false, fine, allow_smush);
 313                         }
 314                         return true;
 315
 316                 } else if (ev->key.keyval == GDK_Left) {
 317
 318                         nudge_notes (false);
 319                         return true;
 320
 321                 } else if (ev->key.keyval == GDK_Right) {
 322
 323                         nudge_notes (true);
 324                         return true;
 325
 326                 } else if (ev->key.keyval == GDK_Control_L) {
 327                         return true;
 328
 329                 } else if (ev->key.keyval == GDK_r) {
 330                         /* if we're not step editing, this really doesn't matter */
 331                         midi_view()->step_edit_rest ();
 332                         return true;
 333                 }
 334
 335                 return false;
 336
 337         case GDK_KEY_RELEASE:
 338                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R) {
 339                         _mouse_state = None;
 340                         return true;
 341                 }
 342                 return false;
 343
 344         case GDK_BUTTON_PRESS:
 345                 if (_mouse_state != SelectTouchDragging && ev->button.button == 1) {
 346                         _pressed_button = ev->button.button;
 347                         _mouse_state = Pressed;
 348                         return true;
 349                 }
 350                 _pressed_button = ev->button.button;
 351                 return true;
 352
 353         case GDK_2BUTTON_PRESS:
 354                 return true;
 355
 356         case GDK_ENTER_NOTIFY:
 357                 /* FIXME: do this on switch to note tool, too, if the pointer is already in */
 358                 Keyboard::magic_widget_grab_focus();
 359                 group->grab_focus();
 360                 break;
 361
 362         case GDK_MOTION_NOTIFY:
 363                 event_x = ev->motion.x;
 364                 event_y = ev->motion.y;
 365                 group->w2i(event_x, event_y);
 366
 367                 // convert event_x to global frame
 368                 event_frame = trackview.editor().pixel_to_frame(event_x) + _region->position();
 369                 trackview.editor().snap_to(event_frame);
 370                 // convert event_frame back to local coordinates relative to position
 371                 event_frame -= _region->position();
 372
 373                 switch (_mouse_state) {
 374                 case Pressed: // Drag start
 375
 376                         // Select drag start
 377                         if (_pressed_button == 1 && editor.current_mouse_mode() == MouseObject) {
 378                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 379                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 380                                 last_x = event_x;
 381                                 last_y = event_y;
 382                                 drag_start_x = event_x;
 383                                 drag_start_y = event_y;
 384
 385                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 386                                 drag_rect->property_x1() = event_x;
 387                                 drag_rect->property_y1() = event_y;
 388                                 drag_rect->property_x2() = event_x;
 389                                 drag_rect->property_y2() = event_y;
 390                                 drag_rect->property_outline_what() = 0xFF;
 391                                 drag_rect->property_outline_color_rgba()
 392                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 393                                 drag_rect->property_fill_color_rgba()
 394                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 395
 396                                 _mouse_state = SelectRectDragging;
 397                                 return true;
 398
 399                         // Add note drag start
 400                         } else if (editor.current_mouse_mode() == MouseRange) {
 401                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 402                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 403                                 last_x = event_x;
 404                                 last_y = event_y;
 405                                 drag_start_x = event_x;
 406                                 drag_start_y = event_y;
 407
 408                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 409                                 drag_rect->property_x1() = trackview.editor().frame_to_pixel(event_frame);
 410
 411                                 drag_rect->property_y1() = midi_stream_view()->note_to_y(
 412                                                 midi_stream_view()->y_to_note(event_y));
 413                                 drag_rect->property_x2() = event_x;
 414                                 drag_rect->property_y2() = drag_rect->property_y1()
 415                                                          + floor(midi_stream_view()->note_height());
 416                                 drag_rect->property_outline_what() = 0xFF;
 417                                 drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 418                                 drag_rect->property_fill_color_rgba()    = 0xFFFFFF66;
 419
 420                                 _mouse_state = AddDragging;
 421                                 return true;
 422                         }
 423
 424                         return false;
 425
 426                 case SelectRectDragging: // Select drag motion
 427                 case AddDragging: // Add note drag motion
 428                         if (ev->motion.is_hint) {
 429                                 int t_x;
 430                                 int t_y;
 431                                 GdkModifierType state;
 432                                 gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
 433                                 event_x = t_x;
 434                                 event_y = t_y;
 435                         }
 436
 437                         if (_mouse_state == AddDragging)
 438                                 event_x = trackview.editor().frame_to_pixel(event_frame);
 439
 440                         if (drag_rect) {
 441                                 if (event_x > drag_start_x)
 442                                         drag_rect->property_x2() = event_x;
 443                                 else
 444                                         drag_rect->property_x1() = event_x;
 445                         }
 446
 447                         if (drag_rect && _mouse_state == SelectRectDragging) {
 448                                 if (event_y > drag_start_y)
 449                                         drag_rect->property_y2() = event_y;
 450                                 else
 451                                         drag_rect->property_y1() = event_y;
 452
 453                                 update_drag_selection(drag_start_x, event_x, drag_start_y, event_y);
 454                         }
 455
 456                         last_x = event_x;
 457                         last_y = event_y;
 458
 459                 case SelectTouchDragging:
 460                         return false;
 461
 462                 default:
 463                         break;
 464                 }
 465                 break;
 466
 467         case GDK_BUTTON_RELEASE:
 468                 event_x = ev->motion.x;
 469                 event_y = ev->motion.y;
 470                 group->w2i(event_x, event_y);
 471                 group->ungrab(ev->button.time);
 472                 event_frame = trackview.editor().pixel_to_frame(event_x);
 473
 474                 if (ev->button.button == 3) {
 475                         return false;
 476                 } else if (_pressed_button != 1) {
 477                         return false;
 478                 }
 479
 480                 switch (_mouse_state) {
 481                 case Pressed: // Clicked
 482                         switch (editor.current_mouse_mode()) {
 483                         case MouseObject:
 484                         case MouseTimeFX:
 485                                 clear_selection();
 486                                 break;
 487                         case MouseRange:
 488                                 create_note_at(event_x, event_y, _default_note_length);
 489                                 break;
 490                         default:
 491                                 break;
 492                         }
 493                         _mouse_state = None;
 494                         break;
 495                 case SelectRectDragging: // Select drag done
 496                         _mouse_state = None;
 497                         delete drag_rect;
 498                         drag_rect = 0;
 499                         break;
 500                 case AddDragging: // Add drag done
 501                         _mouse_state = None;
 502                         if (drag_rect->property_x2() > drag_rect->property_x1() + 2) {
 503                                 const double x      = drag_rect->property_x1();
 504                                 const double length = trackview.editor().pixel_to_frame(
 505                                                         drag_rect->property_x2() - drag_rect->property_x1());
 506
 507                                 create_note_at(x, drag_rect->property_y1(), frames_to_beats(length));
 508                         }
 509
 510                         delete drag_rect;
 511                         drag_rect = 0;
 512                 default: break;
 513                 }
 514
 515         default: break;
 516         }
 517
 518         return false;
 519 }
 520
 521 void
 522 MidiRegionView::show_list_editor ()
 523 {
 524         if (!_list_editor) {
 525                 _list_editor = new MidiListEditor (trackview.session(), midi_region());
 526         }
 527         _list_editor->present ();
 528 }
 529
 530 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 531  * \param x horizontal position in pixels
 532  * \param y vertical position in pixels
 533  * \param length duration of the note in beats */
 534 void
 535 MidiRegionView::create_note_at(double x, double y, double length)
 536 {
 537         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 538         MidiStreamView* const view = mtv->midi_view();
 539
 540         double note = midi_stream_view()->y_to_note(y);
 541
 542         assert(note >= 0.0);
 543         assert(note <= 127.0);
 544
 545         // Start of note in frames relative to region start
 546         nframes64_t start_frames = snap_frame_to_frame(trackview.editor().pixel_to_frame(x));
 547         assert(start_frames >= 0);
 548
 549         // Snap length
 550         length = frames_to_beats(
 551                         snap_frame_to_frame(start_frames + beats_to_frames(length)) - start_frames);
 552
 553         const boost::shared_ptr<NoteType> new_note(new NoteType(0,
 554                         frames_to_beats(start_frames + _region->start()), length,
 555                         (uint8_t)note, 0x40));
 556
 557         view->update_note_range(new_note->note());
 558
 559         MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
 560         cmd->add(new_note);
 561         _model->apply_command(*trackview.session(), cmd);
 562
 563         play_midi_note (new_note);
 564 }
 565
 566 void
 567 MidiRegionView::clear_events()
 568 {
 569         clear_selection();
 570
 571         MidiGhostRegion* gr;
 572         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 573                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 574                         gr->clear_events();
 575                 }
 576         }
 577
 578         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 579                 delete *i;
 580         }
 581
 582         _events.clear();
 583         _pgm_changes.clear();
 584         _sys_exes.clear();
 585         _optimization_iterator = _events.end();
 586 }
 587
 588
 589 void
 590 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 591 {
 592         _model = model;
 593         content_connection.disconnect ();
 594         _model->ContentsChanged.connect (content_connection, boost::bind (&MidiRegionView::redisplay_model, this), gui_context());
 595
 596         clear_events ();
 597
 598         if (_enable_display) {
 599                 redisplay_model();
 600         }
 601 }
 602
 603
 604 void
 605 MidiRegionView::start_delta_command(string name)
 606 {
 607         if (!_delta_command) {
 608                 _delta_command = _model->new_delta_command(name);
 609         }
 610 }
 611
 612 void
 613 MidiRegionView::start_diff_command(string name)
 614 {
 615         if (!_diff_command) {
 616                 _diff_command = _model->new_diff_command(name);
 617         }
 618 }
 619
 620 void
 621 MidiRegionView::delta_add_note(const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
 622 {
 623         if (_delta_command) {
 624                 _delta_command->add(note);
 625         }
 626         if (selected) {
 627                 _marked_for_selection.insert(note);
 628         }
 629         if (show_velocity) {
 630                 _marked_for_velocity.insert(note);
 631         }
 632 }
 633
 634 void
 635 MidiRegionView::delta_remove_note(ArdourCanvas::CanvasNoteEvent* ev)
 636 {
 637         if (_delta_command && ev->note()) {
 638                 _delta_command->remove(ev->note());
 639         }
 640 }
 641
 642 void
 643 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 644                                  MidiModel::DiffCommand::Property property,
 645                                  uint8_t val)
 646 {
 647         if (_diff_command) {
 648                 _diff_command->change (ev->note(), property, val);
 649         }
 650 }
 651
 652 void
 653 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 654                                  MidiModel::DiffCommand::Property property,
 655                                  Evoral::MusicalTime val)
 656 {
 657         if (_diff_command) {
 658                 _diff_command->change (ev->note(), property, val);
 659         }
 660 }
 661
 662 void
 663 MidiRegionView::apply_delta()
 664 {
 665         if (!_delta_command) {
 666                 return;
 667         }
 668
 669         // Mark all selected notes for selection when model reloads
 670         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 671                 _marked_for_selection.insert((*i)->note());
 672         }
 673
 674         _model->apply_command(*trackview.session(), _delta_command);
 675         _delta_command = 0;
 676         midi_view()->midi_track()->diskstream()->playlist_modified();
 677
 678         _marked_for_selection.clear();
 679         _marked_for_velocity.clear();
 680 }
 681
 682 void
 683 MidiRegionView::apply_diff ()
 684 {
 685         if (!_diff_command) {
 686                 return;
 687         }
 688
 689         _model->apply_command(*trackview.session(), _diff_command);
 690         _diff_command = 0;
 691         midi_view()->midi_track()->diskstream()->playlist_modified();
 692
 693         _marked_for_velocity.clear();
 694 }
 695
 696 void
 697 MidiRegionView::apply_delta_as_subcommand()
 698 {
 699         if (!_delta_command) {
 700                 return;
 701         }
 702
 703         // Mark all selected notes for selection when model reloads
 704         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 705                 _marked_for_selection.insert((*i)->note());
 706         }
 707
 708         _model->apply_command_as_subcommand(*trackview.session(), _delta_command);
 709         _delta_command = 0;
 710         midi_view()->midi_track()->diskstream()->playlist_modified();
 711
 712         _marked_for_selection.clear();
 713         _marked_for_velocity.clear();
 714 }
 715
 716 void
 717 MidiRegionView::apply_diff_as_subcommand()
 718 {
 719         if (!_diff_command) {
 720                 return;
 721         }
 722
 723         // Mark all selected notes for selection when model reloads
 724         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 725                 _marked_for_selection.insert((*i)->note());
 726         }
 727
 728         _model->apply_command_as_subcommand(*trackview.session(), _diff_command);
 729         _diff_command = 0;
 730         midi_view()->midi_track()->diskstream()->playlist_modified();
 731
 732         _marked_for_selection.clear();
 733         _marked_for_velocity.clear();
 734 }
 735
 736 void
 737 MidiRegionView::abort_command()
 738 {
 739         delete _delta_command;
 740         _delta_command = 0;
 741         delete _diff_command;
 742         _diff_command = 0;
 743         clear_selection();
 744 }
 745
 746 CanvasNoteEvent*
 747 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
 748 {
 749         if (_optimization_iterator != _events.end()) {
 750                 ++_optimization_iterator;
 751         }
 752
 753         if (_optimization_iterator != _events.end() && (*_optimization_iterator)->note() == note) {
 754                 return *_optimization_iterator;
 755         }
 756
 757         for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
 758                 if ((*_optimization_iterator)->note() == note) {
 759                         return *_optimization_iterator;
 760                 }
 761         }
 762
 763         return 0;
 764 }
 765
 766 void
 767 MidiRegionView::redisplay_model()
 768 {
 769         // Don't redisplay the model if we're currently recording and displaying that
 770         if (_active_notes) {
 771                 return;
 772         }
 773
 774         if (!_model) {
 775                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
 776                 return;
 777         }
 778
 779         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 780                 (*i)->invalidate ();
 781         }
 782
 783         MidiModel::ReadLock lock(_model->read_lock());
 784
 785         MidiModel::Notes& notes (_model->notes());
 786         _optimization_iterator = _events.begin();
 787
 788         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 789
 790                 boost::shared_ptr<NoteType> note (*n);
 791                 CanvasNoteEvent* cne;
 792                 bool visible;
 793
 794                 if (note_in_region_range (note, visible)) {
 795
 796                         if ((cne = find_canvas_note (note)) != 0) {
 797
 798                                 cne->validate ();
 799
 800                                 CanvasNote* cn;
 801                                 CanvasHit* ch;
 802
 803                                 if ((cn = dynamic_cast<CanvasNote*>(cne)) != 0) {
 804                                         update_note (cn);
 805                                 } else if ((ch = dynamic_cast<CanvasHit*>(cne)) != 0) {
 806                                         update_hit (ch);
 807                                 }
 808
 809                                 if (visible) {
 810                                         cne->show ();
 811                                 } else {
 812                                         cne->hide ();
 813                                 }
 814
 815                         } else {
 816
 817                                 add_note (note, visible);
 818                         }
 819
 820                 } else {
 821
 822                         if ((cne = find_canvas_note (note)) != 0) {
 823                                 cne->validate ();
 824                                 cne->hide ();
 825                         }
 826                 }
 827         }
 828
 829         /* remove note items that are no longer valid */
 830
 831         for (Events::iterator i = _events.begin(); i != _events.end(); ) {
 832                 if (!(*i)->valid ()) {
 833                         delete *i;
 834                         i = _events.erase (i);
 835                 } else {
 836                         ++i;
 837                 }
 838         }
 839
 840         display_sysexes();
 841         display_program_changes();
 842
 843         _marked_for_selection.clear ();
 844         _marked_for_velocity.clear ();
 845
 846         /* we may have caused _events to contain things out of order (e.g. if a note
 847            moved earlier or later). we don't generally need them in time order, but
 848            make a note that a sort is required for those cases that require it.
 849         */
 850
 851         _sort_needed = true;
 852 }
 853
 854 void
 855 MidiRegionView::display_program_changes()
 856 {
 857         boost::shared_ptr<Evoral::Control> control = _model->control(MidiPgmChangeAutomation);
 858         if (!control) {
 859                 return;
 860         }
 861
 862         Glib::Mutex::Lock lock (control->list()->lock());
 863
 864         uint8_t channel = control->parameter().channel();
 865
 866         for (AutomationList::const_iterator event = control->list()->begin();
 867                         event != control->list()->end(); ++event) {
 868                 double event_time     = (*event)->when;
 869                 double program_number = floor((*event)->value + 0.5);
 870
 871                 // Get current value of bank select MSB at time of the program change
 872                 Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
 873                 boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
 874                 uint8_t msb = 0;
 875                 if (msb_control != 0) {
 876                         msb = uint8_t(floor(msb_control->get_float(true, event_time) + 0.5));
 877                 }
 878
 879                 // Get current value of bank select LSB at time of the program change
 880                 Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
 881                 boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
 882                 uint8_t lsb = 0;
 883                 if (lsb_control != 0) {
 884                         lsb = uint8_t(floor(lsb_control->get_float(true, event_time) + 0.5));
 885                 }
 886
 887                 MIDI::Name::PatchPrimaryKey patch_key(msb, lsb, program_number);
 888
 889                 boost::shared_ptr<MIDI::Name::Patch> patch =
 890                         MIDI::Name::MidiPatchManager::instance().find_patch(
 891                                         _model_name, _custom_device_mode, channel, patch_key);
 892
 893                 PCEvent program_change(event_time, uint8_t(program_number), channel);
 894
 895                 if (patch != 0) {
 896                         add_pgm_change(program_change, patch->name());
 897                 } else {
 898                         char buf[4];
 899                         snprintf(buf, 4, "%d", int(program_number));
 900                         add_pgm_change(program_change, buf);
 901                 }
 902         }
 903 }
 904
 905 void
 906 MidiRegionView::display_sysexes()
 907 {
 908         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
 909                 Evoral::MusicalTime time = (*i)->time();
 910                 assert(time >= 0);
 911
 912                 ostringstream str;
 913                 str << hex;
 914                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
 915                         str << int((*i)->buffer()[b]);
 916                         if (b != (*i)->size() -1) {
 917                                 str << " ";
 918                         }
 919                 }
 920                 string text = str.str();
 921
 922                 ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 923
 924                 const double x = trackview.editor().frame_to_pixel(beats_to_frames(time));
 925
 926                 double height = midi_stream_view()->contents_height();
 927
 928                 boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
 929                                 new CanvasSysEx(*this, *group, text, height, x, 1.0));
 930
 931                 // Show unless program change is beyond the region bounds
 932                 if (time - _region->start() >= _region->length() || time < _region->start()) {
 933                         sysex->hide();
 934                 } else {
 935                         sysex->show();
 936                 }
 937
 938                 _sys_exes.push_back(sysex);
 939         }
 940 }
 941
 942
 943 MidiRegionView::~MidiRegionView ()
 944 {
 945         in_destructor = true;
 946
 947         delete _list_editor;
 948
 949         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 950
 951         if (_active_notes) {
 952                 end_write();
 953         }
 954
 955         _selection.clear();
 956         clear_events();
 957         delete _note_group;
 958         delete _delta_command;
 959 }
 960
 961 void
 962 MidiRegionView::region_resized (Change what_changed)
 963 {
 964         RegionView::region_resized(what_changed);
 965
 966         if (what_changed & ARDOUR::PositionChanged) {
 967                 set_duration(_region->length(), 0);
 968                 if (_enable_display) {
 969                         redisplay_model();
 970                 }
 971         }
 972 }
 973
 974 void
 975 MidiRegionView::reset_width_dependent_items (double pixel_width)
 976 {
 977         RegionView::reset_width_dependent_items(pixel_width);
 978         assert(_pixel_width == pixel_width);
 979
 980         if (_enable_display) {
 981                 redisplay_model();
 982         }
 983 }
 984
 985 void
 986 MidiRegionView::set_height (double height)
 987 {
 988         static const double FUDGE = 2.0;
 989         const double old_height = _height;
 990         RegionView::set_height(height);
 991         _height = height - FUDGE;
 992
 993         apply_note_range(midi_stream_view()->lowest_note(),
 994                          midi_stream_view()->highest_note(),
 995                          height != old_height + FUDGE);
 996
 997         if (name_pixbuf) {
 998                 name_pixbuf->raise_to_top();
 999         }
1000 }
1001
1002
1003 /** Apply the current note range from the stream view
1004  * by repositioning/hiding notes as necessary
1005  */
1006 void
1007 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
1008 {
1009         if (!_enable_display) {
1010                 return;
1011         }
1012
1013         if (!force && _current_range_min == min && _current_range_max == max) {
1014                 return;
1015         }
1016
1017         _current_range_min = min;
1018         _current_range_max = max;
1019
1020         for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
1021                 CanvasNoteEvent* event = *i;
1022                 boost::shared_ptr<NoteType> note (event->note());
1023
1024                 if (note->note() < _current_range_min ||
1025                     note->note() > _current_range_max) {
1026                         event->hide();
1027                 } else {
1028                         event->show();
1029                 }
1030
1031                 if (CanvasNote* cnote = dynamic_cast<CanvasNote*>(event)) {
1032
1033                         const double y1 = midi_stream_view()->note_to_y(note->note());
1034                         const double y2 = y1 + floor(midi_stream_view()->note_height());
1035
1036                         cnote->property_y1() = y1;
1037                         cnote->property_y2() = y2;
1038
1039                 } else if (CanvasHit* chit = dynamic_cast<CanvasHit*>(event)) {
1040
1041                         double x = trackview.editor().frame_to_pixel(
1042                                 beats_to_frames(note->time()) - _region->start());
1043                         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1044                         double y = midi_stream_view()->note_to_y(event->note()->note())
1045                                 + ((diamond_size-2.0) / 4.0);
1046
1047                         chit->set_height (diamond_size);
1048                         chit->move (x - chit->x1(), y - chit->y1());
1049                         chit->show ();
1050                 }
1051         }
1052 }
1053
1054 GhostRegion*
1055 MidiRegionView::add_ghost (TimeAxisView& tv)
1056 {
1057         CanvasNote* note;
1058
1059         double unit_position = _region->position () / samples_per_unit;
1060         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
1061         MidiGhostRegion* ghost;
1062
1063         if (mtv && mtv->midi_view()) {
1064                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
1065                    to allow having midi notes on top of note lines and waveforms.
1066                  */
1067                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
1068         } else {
1069                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
1070         }
1071
1072         ghost->set_height ();
1073         ghost->set_duration (_region->length() / samples_per_unit);
1074         ghosts.push_back (ghost);
1075
1076         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1077                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
1078                         ghost->add_note(note);
1079                 }
1080         }
1081
1082         GhostRegion::CatchDeletion.connect (*this, ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
1083
1084         return ghost;
1085 }
1086
1087
1088 /** Begin tracking note state for successive calls to add_event
1089  */
1090 void
1091 MidiRegionView::begin_write()
1092 {
1093         assert(!_active_notes);
1094         _active_notes = new CanvasNote*[128];
1095         for (unsigned i=0; i < 128; ++i) {
1096                 _active_notes[i] = 0;
1097         }
1098 }
1099
1100
1101 /** Destroy note state for add_event
1102  */
1103 void
1104 MidiRegionView::end_write()
1105 {
1106         delete[] _active_notes;
1107         _active_notes = 0;
1108         _marked_for_selection.clear();
1109         _marked_for_velocity.clear();
1110 }
1111
1112
1113 /** Resolve an active MIDI note (while recording).
1114  */
1115 void
1116 MidiRegionView::resolve_note(uint8_t note, double end_time)
1117 {
1118         if (midi_view()->note_mode() != Sustained) {
1119                 return;
1120         }
1121
1122         if (_active_notes && _active_notes[note]) {
1123                 const nframes64_t end_time_frames = beats_to_frames(end_time);
1124                 _active_notes[note]->property_x2() = trackview.editor().frame_to_pixel(end_time_frames);
1125                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
1126                 _active_notes[note] = 0;
1127         }
1128 }
1129
1130
1131 /** Extend active notes to rightmost edge of region (if length is changed)
1132  */
1133 void
1134 MidiRegionView::extend_active_notes()
1135 {
1136         if (!_active_notes) {
1137                 return;
1138         }
1139
1140         for (unsigned i=0; i < 128; ++i) {
1141                 if (_active_notes[i]) {
1142                         _active_notes[i]->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1143                 }
1144         }
1145 }
1146
1147 void
1148 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1149 {
1150         if (!trackview.editor().sound_notes()) {
1151                 return;
1152         }
1153
1154         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1155         assert(route_ui);
1156
1157         route_ui->midi_track()->write_immediate_event(
1158                         note->on_event().size(), note->on_event().buffer());
1159
1160         const double note_length_beats = (note->off_event().time() - note->on_event().time());
1161         nframes_t note_length_ms = beats_to_frames(note_length_beats)
1162                         * (1000 / (double)route_ui->session()->nominal_frame_rate());
1163         Glib::signal_timeout().connect(sigc::bind(sigc::mem_fun(this, &MidiRegionView::play_midi_note_off), note),
1164                         note_length_ms, G_PRIORITY_DEFAULT);
1165 }
1166
1167 bool
1168 MidiRegionView::play_midi_note_off(boost::shared_ptr<NoteType> note)
1169 {
1170         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1171         assert(route_ui);
1172
1173         route_ui->midi_track()->write_immediate_event(
1174                         note->off_event().size(), note->off_event().buffer());
1175
1176         return false;
1177 }
1178
1179 bool
1180 MidiRegionView::note_in_region_range(const boost::shared_ptr<NoteType> note, bool& visible) const
1181 {
1182         const nframes64_t note_start_frames = beats_to_frames(note->time());
1183
1184         bool outside = (note_start_frames - _region->start() >= _region->length()) ||
1185                 (note_start_frames < _region->start());
1186
1187         visible = (note->note() >= midi_stream_view()->lowest_note()) &&
1188                 (note->note() <= midi_stream_view()->highest_note());
1189
1190         return !outside;
1191 }
1192
1193 void
1194 MidiRegionView::update_note (CanvasNote* ev)
1195 {
1196         boost::shared_ptr<NoteType> note = ev->note();
1197
1198         const nframes64_t note_start_frames = beats_to_frames(note->time());
1199         const nframes64_t note_end_frames   = beats_to_frames(note->end_time());
1200
1201         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1202         const double y1 = midi_stream_view()->note_to_y(note->note());
1203         const double note_endpixel =
1204                 trackview.editor().frame_to_pixel(note_end_frames - _region->start());
1205
1206         ev->property_x1() = x;
1207         ev->property_y1() = y1;
1208         if (note->length() > 0) {
1209                 ev->property_x2() = note_endpixel;
1210         } else {
1211                 ev->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1212         }
1213         ev->property_y2() = y1 + floor(midi_stream_view()->note_height());
1214
1215         if (note->length() == 0) {
1216                 if (_active_notes) {
1217                         assert(note->note() < 128);
1218                         // If this note is already active there's a stuck note,
1219                         // finish the old note rectangle
1220                         if (_active_notes[note->note()]) {
1221                                 CanvasNote* const old_rect = _active_notes[note->note()];
1222                                 boost::shared_ptr<NoteType> old_note = old_rect->note();
1223                                 old_rect->property_x2() = x;
1224                                 old_rect->property_outline_what() = (guint32) 0xF;
1225                         }
1226                         _active_notes[note->note()] = ev;
1227                 }
1228                 /* outline all but right edge */
1229                 ev->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
1230         } else {
1231                 /* outline all edges */
1232                 ev->property_outline_what() = (guint32) 0xF;
1233         }
1234 }
1235
1236 void
1237 MidiRegionView::update_hit (CanvasHit* ev)
1238 {
1239         boost::shared_ptr<NoteType> note = ev->note();
1240
1241         const nframes64_t note_start_frames = beats_to_frames(note->time());
1242         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1243         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1244         const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
1245
1246         ev->move_to (x, y);
1247 }
1248
1249 /** Add a MIDI note to the view (with length).
1250  *
1251  * If in sustained mode, notes with length 0 will be considered active
1252  * notes, and resolve_note should be called when the corresponding note off
1253  * event arrives, to properly display the note.
1254  */
1255 void
1256 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
1257 {
1258         CanvasNoteEvent* event = 0;
1259
1260         assert(note->time() >= 0);
1261         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
1262
1263         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1264
1265         if (midi_view()->note_mode() == Sustained) {
1266
1267                 CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
1268
1269                 update_note (ev_rect);
1270
1271                 event = ev_rect;
1272
1273                 MidiGhostRegion* gr;
1274
1275                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1276                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1277                                 gr->add_note(ev_rect);
1278                         }
1279                 }
1280
1281         } else if (midi_view()->note_mode() == Percussive) {
1282
1283                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
1284
1285                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size, note);
1286
1287                 update_hit (ev_diamond);
1288
1289                 event = ev_diamond;
1290
1291         } else {
1292                 event = 0;
1293         }
1294
1295         if (event) {
1296                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1297                         note_selected(event, true);
1298                 }
1299
1300                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1301                         event->show_velocity();
1302                 }
1303                 event->on_channel_selection_change(_last_channel_selection);
1304                 _events.push_back(event);
1305
1306                 if (visible) {
1307                         event->show();
1308                 } else {
1309                         event->hide ();
1310                 }
1311         }
1312 }
1313
1314 void
1315 MidiRegionView::add_note (uint8_t channel, uint8_t number, uint8_t velocity,
1316                           Evoral::MusicalTime pos, Evoral::MusicalTime len)
1317 {
1318         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
1319
1320         start_delta_command (_("step add"));
1321         delta_add_note (new_note, true, false);
1322         apply_delta();
1323
1324         /* potentially extend region to hold new note */
1325
1326         nframes64_t end_frame = _region->position() + beats_to_frames (new_note->end_time());
1327         nframes64_t region_end = _region->position() + _region->length() - 1;
1328
1329         if (end_frame > region_end) {
1330                 _region->set_length (end_frame, this);
1331         } else {
1332                 redisplay_model ();
1333         }
1334 }
1335
1336 void
1337 MidiRegionView::add_pgm_change(PCEvent& program, const string& displaytext)
1338 {
1339         assert(program.time >= 0);
1340
1341         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1342         const double x = trackview.editor().frame_to_pixel(beats_to_frames(program.time));
1343
1344         double height = midi_stream_view()->contents_height();
1345
1346         boost::shared_ptr<CanvasProgramChange> pgm_change = boost::shared_ptr<CanvasProgramChange>(
1347                         new CanvasProgramChange(*this, *group,
1348                                         displaytext,
1349                                         height,
1350                                         x, 1.0,
1351                                         _model_name,
1352                                         _custom_device_mode,
1353                                         program.time, program.channel, program.value));
1354
1355         // Show unless program change is beyond the region bounds
1356         if (program.time - _region->start() >= _region->length() || program.time < _region->start()) {
1357                 pgm_change->hide();
1358         } else {
1359                 pgm_change->show();
1360         }
1361
1362         _pgm_changes.push_back(pgm_change);
1363 }
1364
1365 void
1366 MidiRegionView::get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key)
1367 {
1368         cerr << "getting patch key at " << time << " for channel " << channel << endl;
1369         Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
1370         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1371         float msb = -1.0;
1372         if (msb_control != 0) {
1373                 msb = int(msb_control->get_float(true, time));
1374                 cerr << "got msb " << msb;
1375         }
1376
1377         Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
1378         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1379         float lsb = -1.0;
1380         if (lsb_control != 0) {
1381                 lsb = lsb_control->get_float(true, time);
1382                 cerr << " got lsb " << lsb;
1383         }
1384
1385         Evoral::Parameter program_change(MidiPgmChangeAutomation, channel, 0);
1386         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1387         float program_number = -1.0;
1388         if (program_control != 0) {
1389                 program_number = program_control->get_float(true, time);
1390                 cerr << " got program " << program_number << endl;
1391         }
1392
1393         key.msb = (int) floor(msb + 0.5);
1394         key.lsb = (int) floor(lsb + 0.5);
1395         key.program_number = (int) floor(program_number + 0.5);
1396         assert(key.is_sane());
1397 }
1398
1399
1400 void
1401 MidiRegionView::alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch)
1402 {
1403         // TODO: Get the real event here and alter them at the original times
1404         Evoral::Parameter bank_select_msb(MidiCCAutomation, old_program.channel, MIDI_CTL_MSB_BANK);
1405         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1406         if (msb_control != 0) {
1407                 msb_control->set_float(float(new_patch.msb), true, old_program.time);
1408         }
1409
1410         // TODO: Get the real event here and alter them at the original times
1411         Evoral::Parameter bank_select_lsb(MidiCCAutomation, old_program.channel, MIDI_CTL_LSB_BANK);
1412         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1413         if (lsb_control != 0) {
1414                 lsb_control->set_float(float(new_patch.lsb), true, old_program.time);
1415         }
1416
1417         Evoral::Parameter program_change(MidiPgmChangeAutomation, old_program.channel, 0);
1418         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1419
1420         assert(program_control != 0);
1421         program_control->set_float(float(new_patch.program_number), true, old_program.time);
1422
1423         redisplay_model();
1424 }
1425
1426 void
1427 MidiRegionView::program_selected(CanvasProgramChange& program, const MIDI::Name::PatchPrimaryKey& new_patch)
1428 {
1429         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1430         alter_program_change(program_change_event, new_patch);
1431 }
1432
1433 void
1434 MidiRegionView::previous_program(CanvasProgramChange& program)
1435 {
1436         MIDI::Name::PatchPrimaryKey key;
1437         get_patch_key_at(program.event_time(), program.channel(), key);
1438
1439         boost::shared_ptr<MIDI::Name::Patch> patch =
1440                 MIDI::Name::MidiPatchManager::instance().previous_patch(
1441                                 _model_name,
1442                                 _custom_device_mode,
1443                                 program.channel(),
1444                                 key);
1445
1446         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1447         if (patch) {
1448                 alter_program_change(program_change_event, patch->patch_primary_key());
1449         }
1450 }
1451
1452 void
1453 MidiRegionView::next_program(CanvasProgramChange& program)
1454 {
1455         MIDI::Name::PatchPrimaryKey key;
1456         get_patch_key_at(program.event_time(), program.channel(), key);
1457
1458         boost::shared_ptr<MIDI::Name::Patch> patch =
1459                 MIDI::Name::MidiPatchManager::instance().next_patch(
1460                                 _model_name,
1461                                 _custom_device_mode,
1462                                 program.channel(),
1463                                 key);
1464
1465         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1466         if (patch) {
1467                 alter_program_change(program_change_event, patch->patch_primary_key());
1468         }
1469 }
1470
1471 void
1472 MidiRegionView::delete_selection()
1473 {
1474         if (_selection.empty()) {
1475                 return;
1476         }
1477
1478         start_delta_command (_("delete selection"));
1479
1480         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1481                 if ((*i)->selected()) {
1482                         _delta_command->remove((*i)->note());
1483                 }
1484         }
1485
1486         _selection.clear();
1487
1488         apply_delta ();
1489 }
1490
1491 void
1492 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev)
1493 {
1494         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1495                 if ((*i)->selected() && (*i) != ev) {
1496                         (*i)->selected(false);
1497                         (*i)->hide_velocity();
1498                 }
1499         }
1500
1501         _selection.clear();
1502 }
1503
1504 void
1505 MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
1506 {
1507         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
1508                 if ((*i) != ev) {
1509
1510                         Selection::iterator tmp = i;
1511                         ++tmp;
1512
1513                         (*i)->selected (false);
1514                         _selection.erase (i);
1515
1516                         i = tmp;
1517
1518                 } else {
1519                         ++i;
1520                 }
1521         }
1522
1523         /* don't bother with removing this regionview from the editor selection,
1524            since we're about to add another note, and thus put/keep this
1525            regionview in the editor selection.
1526         */
1527
1528         if (!ev->selected()) {
1529                 add_to_selection (ev);
1530         }
1531 }
1532
1533 void
1534 MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
1535 {
1536         if (!add) {
1537                 clear_selection_except(ev);
1538         }
1539
1540         if (!extend) {
1541
1542                 if (!ev->selected()) {
1543                         add_to_selection (ev);
1544                 }
1545
1546         } else {
1547                 /* find end of latest note selected, select all between that and the start of "ev" */
1548
1549                 Evoral::MusicalTime earliest = DBL_MAX;
1550                 Evoral::MusicalTime latest = 0;
1551
1552                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1553                         if ((*i)->note()->end_time() > latest) {
1554                                 latest = (*i)->note()->end_time();
1555                         }
1556                         if ((*i)->note()->time() < earliest) {
1557                                 earliest = (*i)->note()->time();
1558                         }
1559                 }
1560
1561                 if (ev->note()->end_time() > latest) {
1562                         latest = ev->note()->end_time();
1563                 }
1564
1565                 if (ev->note()->time() < earliest) {
1566                         earliest = ev->note()->time();
1567                 }
1568
1569                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1570
1571                         /* find notes entirely within OR spanning the earliest..latest range */
1572
1573                         if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
1574                             ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
1575                                 add_to_selection (*i);
1576                         }
1577
1578 #if 0
1579                         /* if events were guaranteed to be time sorted, we could do this.
1580                            but as of sept 10th 2009, they no longer are.
1581                         */
1582
1583                         if ((*i)->note()->time() > latest) {
1584                                 break;
1585                         }
1586 #endif
1587                 }
1588         }
1589 }
1590
1591 void
1592 MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev)
1593 {
1594         remove_from_selection (ev);
1595 }
1596
1597 void
1598 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
1599 {
1600         if (x1 > x2) {
1601                 swap (x1, x2);
1602         }
1603
1604         if (y1 > y2) {
1605                 swap (y1, y2);
1606         }
1607
1608         // TODO: Make this faster by storing the last updated selection rect, and only
1609         // adjusting things that are in the area that appears/disappeared.
1610         // We probably need a tree to be able to find events in O(log(n)) time.
1611
1612         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1613
1614                 /* check if any corner of the note is inside the rect
1615
1616                    Notes:
1617                      1) this is computing "touched by", not "contained by" the rect.
1618                      2) this does not require that events be sorted in time.
1619                  */
1620
1621                 const double ix1 = (*i)->x1();
1622                 const double ix2 = (*i)->x2();
1623                 const double iy1 = (*i)->y1();
1624                 const double iy2 = (*i)->y2();
1625
1626                 if ((ix1 >= x1 && ix1 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1627                     (ix1 >= x1 && ix1 <= x2 && iy2 >= y1 && iy2 <= y2) ||
1628                     (ix2 >= x1 && ix2 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1629                     (ix2 >= x1 && ix2 <= x2 && iy2 >= y1 && iy2 <= y2)) {
1630
1631                         // Inside rectangle
1632                         if (!(*i)->selected()) {
1633                                 add_to_selection (*i);
1634                         }
1635                 } else if ((*i)->selected()) {
1636                         // Not inside rectangle
1637                         remove_from_selection (*i);
1638                 }
1639         }
1640 }
1641
1642 void
1643 MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
1644 {
1645         Selection::iterator i = _selection.find (ev);
1646
1647         if (i != _selection.end()) {
1648                 _selection.erase (i);
1649         }
1650
1651         ev->selected (false);
1652         ev->hide_velocity ();
1653
1654         if (_selection.empty()) {
1655                 PublicEditor& editor (trackview.editor());
1656                 editor.get_selection().remove (this);
1657         }
1658 }
1659
1660 void
1661 MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
1662 {
1663         bool add_mrv_selection = false;
1664
1665         if (_selection.empty()) {
1666                 add_mrv_selection = true;
1667         }
1668
1669         if (_selection.insert (ev).second) {
1670                 ev->selected (true);
1671                 play_midi_note ((ev)->note());
1672         }
1673
1674         if (add_mrv_selection) {
1675                 PublicEditor& editor (trackview.editor());
1676                 editor.get_selection().add (this);
1677         }
1678 }
1679
1680 void
1681 MidiRegionView::move_selection(double dx, double dy)
1682 {
1683         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1684                 (*i)->move_event(dx, dy);
1685         }
1686 }
1687
1688 void
1689 MidiRegionView::note_dropped(CanvasNoteEvent *, double dt, int8_t dnote)
1690 {
1691         assert (!_selection.empty());
1692
1693         uint8_t lowest_note_in_selection  = 127;
1694         uint8_t highest_note_in_selection = 0;
1695         uint8_t highest_note_difference = 0;
1696
1697         // find highest and lowest notes first
1698
1699         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1700                 uint8_t pitch = (*i)->note()->note();
1701                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
1702                 highest_note_in_selection = std::max(highest_note_in_selection, pitch);
1703         }
1704
1705         /*
1706         cerr << "dnote: " << (int) dnote << endl;
1707         cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
1708              << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
1709         cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
1710              << int(highest_note_in_selection) << endl;
1711         cerr << "selection size: " << _selection.size() << endl;
1712         cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
1713         */
1714
1715         // Make sure the note pitch does not exceed the MIDI standard range
1716         if (highest_note_in_selection + dnote > 127) {
1717                 highest_note_difference = highest_note_in_selection - 127;
1718         }
1719
1720         start_diff_command(_("move notes"));
1721
1722         for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
1723
1724                 nframes64_t start_frames = beats_to_frames((*i)->note()->time());
1725
1726                 if (dt >= 0) {
1727                         start_frames += snap_frame_to_frame(trackview.editor().pixel_to_frame(dt));
1728                 } else {
1729                         start_frames -= snap_frame_to_frame(trackview.editor().pixel_to_frame(-dt));
1730                 }
1731
1732                 Evoral::MusicalTime new_time = frames_to_beats(start_frames);
1733
1734                 if (new_time < 0) {
1735                         continue;
1736                 }
1737
1738                 diff_add_change (*i, MidiModel::DiffCommand::StartTime, new_time);
1739
1740                 uint8_t original_pitch = (*i)->note()->note();
1741                 uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
1742
1743                 // keep notes in standard midi range
1744                 clamp_to_0_127(new_pitch);
1745
1746                 // keep original pitch if note is dragged outside valid midi range
1747                 if ((original_pitch != 0 && new_pitch == 0)
1748                                 || (original_pitch != 127 && new_pitch == 127)) {
1749                         new_pitch = original_pitch;
1750                 }
1751
1752                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
1753                 highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
1754
1755                 diff_add_change (*i, MidiModel::DiffCommand::NoteNumber, new_pitch);
1756         }
1757
1758         apply_diff();
1759
1760         // care about notes being moved beyond the upper/lower bounds on the canvas
1761         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
1762             highest_note_in_selection > midi_stream_view()->highest_note()) {
1763                 midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
1764         }
1765 }
1766
1767 nframes64_t
1768 MidiRegionView::snap_pixel_to_frame(double x)
1769 {
1770         PublicEditor& editor = trackview.editor();
1771         // x is region relative, convert it to global absolute frames
1772         nframes64_t frame = editor.pixel_to_frame(x) + _region->position();
1773         editor.snap_to(frame);
1774         return frame - _region->position(); // convert back to region relative
1775 }
1776
1777 nframes64_t
1778 MidiRegionView::snap_frame_to_frame(nframes64_t x)
1779 {
1780         PublicEditor& editor = trackview.editor();
1781         // x is region relative, convert it to global absolute frames
1782         nframes64_t frame = x + _region->position();
1783         editor.snap_to(frame);
1784         return frame - _region->position(); // convert back to region relative
1785 }
1786
1787 double
1788 MidiRegionView::snap_to_pixel(double x)
1789 {
1790         return (double) trackview.editor().frame_to_pixel(snap_pixel_to_frame(x));
1791 }
1792
1793 double
1794 MidiRegionView::get_position_pixels()
1795 {
1796         nframes64_t region_frame = get_position();
1797         return trackview.editor().frame_to_pixel(region_frame);
1798 }
1799
1800 double
1801 MidiRegionView::get_end_position_pixels()
1802 {
1803         nframes64_t frame = get_position() + get_duration ();
1804         return trackview.editor().frame_to_pixel(frame);
1805 }
1806
1807 nframes64_t
1808 MidiRegionView::beats_to_frames(double beats) const
1809 {
1810         return _time_converter.to(beats);
1811 }
1812
1813 double
1814 MidiRegionView::frames_to_beats(nframes64_t frames) const
1815 {
1816         return _time_converter.from(frames);
1817 }
1818
1819 void
1820 MidiRegionView::begin_resizing (bool /*at_front*/)
1821 {
1822         _resize_data.clear();
1823
1824         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1825                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
1826
1827                 // only insert CanvasNotes into the map
1828                 if (note) {
1829                         NoteResizeData *resize_data = new NoteResizeData();
1830                         resize_data->canvas_note = note;
1831
1832                         // create a new SimpleRect from the note which will be the resize preview
1833                         SimpleRect *resize_rect = new SimpleRect(
1834                                         *group, note->x1(), note->y1(), note->x2(), note->y2());
1835
1836                         // calculate the colors: get the color settings
1837                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
1838                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(),
1839                                         128);
1840
1841                         // make the resize preview notes more transparent and bright
1842                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
1843
1844                         // calculate color based on note velocity
1845                         resize_rect->property_fill_color_rgba() = UINT_INTERPOLATE(
1846                                         CanvasNoteEvent::meter_style_fill_color(note->note()->velocity()),
1847                                         fill_color,
1848                                         0.85);
1849
1850                         resize_rect->property_outline_color_rgba() = CanvasNoteEvent::calculate_outline(
1851                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get());
1852
1853                         resize_data->resize_rect = resize_rect;
1854                         _resize_data.push_back(resize_data);
1855                 }
1856         }
1857 }
1858
1859 void
1860 MidiRegionView::update_resizing (bool at_front, double delta_x, bool relative)
1861 {
1862         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1863                 SimpleRect* resize_rect = (*i)->resize_rect;
1864                 CanvasNote* canvas_note = (*i)->canvas_note;
1865                 double current_x;
1866
1867                 if (at_front) {
1868                         if (relative) {
1869                                 current_x = canvas_note->x1() + delta_x;
1870                         } else {
1871                                 // x is in track relative, transform it to region relative
1872                                 current_x = delta_x - get_position_pixels();
1873                         }
1874                 } else {
1875                         if (relative) {
1876                                 current_x = canvas_note->x2() + delta_x;
1877                         } else {
1878                                 // x is in track relative, transform it to region relative
1879                                 current_x = delta_x - get_end_position_pixels ();
1880                         }
1881                 }
1882
1883                 if (at_front) {
1884                         resize_rect->property_x1() = snap_to_pixel(current_x);
1885                         resize_rect->property_x2() = canvas_note->x2();
1886                 } else {
1887                         resize_rect->property_x2() = snap_to_pixel(current_x);
1888                         resize_rect->property_x1() = canvas_note->x1();
1889                 }
1890         }
1891 }
1892
1893 void
1894 MidiRegionView::commit_resizing (bool at_front, double delta_x, bool relative)
1895 {
1896         start_diff_command(_("resize notes"));
1897
1898         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1899                 CanvasNote*  canvas_note = (*i)->canvas_note;
1900                 SimpleRect*  resize_rect = (*i)->resize_rect;
1901                 const double region_start = get_position_pixels();
1902                 double current_x;
1903
1904                 if (at_front) {
1905                         if (relative) {
1906                                 current_x = canvas_note->x1() + delta_x;
1907                         } else {
1908                                 // x is in track relative, transform it to region relative
1909                                 current_x = region_start + delta_x;
1910                         }
1911                 } else {
1912                         if (relative) {
1913                                 current_x = canvas_note->x2() + delta_x;
1914                         } else {
1915                                 // x is in track relative, transform it to region relative
1916                                 current_x = region_start + delta_x;
1917                         }
1918                 }
1919
1920                 current_x = snap_pixel_to_frame (current_x);
1921                 current_x = frames_to_beats (current_x);
1922
1923                 if (at_front && current_x < canvas_note->note()->end_time()) {
1924                         diff_add_change (canvas_note, MidiModel::DiffCommand::StartTime, current_x);
1925
1926                         double len = canvas_note->note()->time() - current_x;
1927                         len += canvas_note->note()->length();
1928
1929                         if (len > 0) {
1930                                 /* XXX convert to beats */
1931                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
1932                         }
1933                 }
1934
1935                 if (!at_front) {
1936                         double len = current_x - canvas_note->note()->time();
1937
1938                         if (len > 0) {
1939                                 /* XXX convert to beats */
1940                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
1941                         }
1942                 }
1943
1944                 delete resize_rect;
1945                 delete (*i);
1946         }
1947
1948         _resize_data.clear();
1949         apply_diff();
1950 }
1951
1952 void
1953 MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bool relative)
1954 {
1955         uint8_t new_velocity;
1956
1957         if (relative) {
1958                 new_velocity = event->note()->velocity() + velocity;
1959                 clamp_to_0_127(new_velocity);
1960         } else {
1961                 new_velocity = velocity;
1962         }
1963
1964         diff_add_change (event, MidiModel::DiffCommand::Velocity, new_velocity);
1965 }
1966
1967 void
1968 MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool relative)
1969 {
1970         uint8_t new_note;
1971
1972         if (relative) {
1973                 new_note = event->note()->note() + note;
1974         } else {
1975                 new_note = note;
1976         }
1977
1978         clamp_to_0_127 (new_note);
1979         diff_add_change (event, MidiModel::DiffCommand::NoteNumber, new_note);
1980 }
1981
1982 void
1983 MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
1984 {
1985         bool change_start = false;
1986         bool change_length = false;
1987         Evoral::MusicalTime new_start;
1988         Evoral::MusicalTime new_length;
1989
1990         /* NOTE: the semantics of the two delta arguments are slightly subtle:
1991
1992            front_delta: if positive - move the start of the note later in time (shortening it)
1993                         if negative - move the start of the note earlier in time (lengthening it)
1994
1995            end_delta:   if positive - move the end of the note later in time (lengthening it)
1996                         if negative - move the end of the note earlier in time (shortening it)
1997          */
1998
1999         if (front_delta) {
2000                 if (front_delta < 0) {
2001
2002                         if (event->note()->time() < -front_delta) {
2003                                 new_start = 0;
2004                         } else {
2005                                 new_start = event->note()->time() + front_delta; // moves earlier
2006                         }
2007
2008                         /* start moved toward zero, so move the end point out to where it used to be.
2009                            Note that front_delta is negative, so this increases the length.
2010                         */
2011
2012                         new_length = event->note()->length() - front_delta;
2013                         change_start = true;
2014                         change_length = true;
2015
2016                 } else {
2017
2018                         Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
2019
2020                         if (new_pos < event->note()->end_time()) {
2021                                 new_start = event->note()->time() + front_delta;
2022                                 /* start moved toward the end, so move the end point back to where it used to be */
2023                                 new_length = event->note()->length() - front_delta;
2024                                 change_start = true;
2025                                 change_length = true;
2026                         }
2027                 }
2028
2029         }
2030
2031         if (end_delta) {
2032                 bool can_change = true;
2033                 if (end_delta < 0) {
2034                         if (event->note()->length() < -end_delta) {
2035                                 can_change = false;
2036                         }
2037                 }
2038
2039                 if (can_change) {
2040                         new_length = event->note()->length() + end_delta;
2041                         change_length = true;
2042                 }
2043         }
2044
2045         if (change_start) {
2046                 diff_add_change (event, MidiModel::DiffCommand::StartTime, new_start);
2047         }
2048
2049         if (change_length) {
2050                 diff_add_change (event, MidiModel::DiffCommand::Length, new_length);
2051         }
2052 }
2053
2054 void
2055 MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime delta, bool relative)
2056 {
2057         Evoral::MusicalTime new_time;
2058
2059         if (relative) {
2060                 if (delta < 0.0) {
2061                         if (event->note()->time() < -delta) {
2062                                 new_time = 0;
2063                         } else {
2064                                 new_time = event->note()->time() + delta;
2065                         }
2066                 } else {
2067                         new_time = event->note()->time() + delta;
2068                 }
2069         } else {
2070                 new_time = delta;
2071         }
2072
2073         diff_add_change (event, MidiModel::DiffCommand::StartTime, new_time);
2074 }
2075
2076 void
2077 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
2078 {
2079         int8_t delta;
2080
2081         if (_selection.empty()) {
2082                 return;
2083         }
2084
2085         if (fine) {
2086                 delta = 1;
2087         } else {
2088                 delta = 10;
2089         }
2090
2091         if (!up) {
2092                 delta = -delta;
2093         }
2094
2095         if (!allow_smush) {
2096                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2097                         if ((*i)->note()->velocity() + delta == 0 || (*i)->note()->velocity() + delta == 127) {
2098                                 return;
2099                         }
2100                 }
2101         }
2102
2103         start_diff_command(_("change velocities"));
2104
2105         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
2106                 Selection::iterator next = i;
2107                 ++next;
2108                 change_note_velocity (*i, delta, true);
2109                 i = next;
2110         }
2111
2112         apply_diff();
2113 }
2114
2115
2116 void
2117 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
2118 {
2119         if (_selection.empty()) {
2120                 return;
2121         }
2122
2123         int8_t delta;
2124
2125         if (fine) {
2126                 delta = 1;
2127         } else {
2128                 delta = 12;
2129         }
2130
2131         if (!up) {
2132                 delta = -delta;
2133         }
2134
2135         if (!allow_smush) {
2136                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2137                         if (!up) {
2138                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
2139                                         return;
2140                                 }
2141                         } else {
2142                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
2143                                         return;
2144                                 }
2145                         }
2146                 }
2147         }
2148
2149         start_diff_command (_("transpose"));
2150
2151         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2152                 Selection::iterator next = i;
2153                 ++next;
2154                 change_note_note (*i, delta, true);
2155                 i = next;
2156         }
2157
2158         apply_diff ();
2159 }
2160
2161 void
2162 MidiRegionView::change_note_lengths (bool fine, bool shorter, bool start, bool end)
2163 {
2164         Evoral::MusicalTime delta;
2165
2166         if (fine) {
2167                 delta = 1.0/128.0;
2168         } else {
2169                 /* grab the current grid distance */
2170                 bool success;
2171                 delta = trackview.editor().get_grid_type_as_beats (success, _region->position());
2172                 if (!success) {
2173                         /* XXX cannot get grid type as beats ... should always be possible ... FIX ME */
2174                         cerr << "Grid type not available as beats - TO BE FIXED\n";
2175                         return;
2176                 }
2177         }
2178
2179         if (shorter) {
2180                 delta = -delta;
2181         }
2182
2183         start_diff_command (_("change note lengths"));
2184
2185         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2186                 Selection::iterator next = i;
2187                 ++next;
2188
2189                 /* note the negation of the delta for start */
2190
2191                 trim_note (*i, (start ? -delta : 0), (end ? delta : 0));
2192                 i = next;
2193         }
2194
2195         apply_diff ();
2196
2197 }
2198
2199 void
2200 MidiRegionView::nudge_notes (bool forward)
2201 {
2202         if (_selection.empty()) {
2203                 return;
2204         }
2205
2206         /* pick a note as the point along the timeline to get the nudge distance.
2207            its not necessarily the earliest note, so we may want to pull the notes out
2208            into a vector and sort before using the first one.
2209         */
2210
2211         nframes64_t ref_point = _region->position() + beats_to_frames ((*(_selection.begin()))->note()->time());
2212         nframes64_t unused;
2213         nframes64_t distance;
2214
2215         if (trackview.editor().snap_mode() == Editing::SnapOff) {
2216
2217                 /* grid is off - use nudge distance */
2218
2219                 distance = trackview.editor().get_nudge_distance (ref_point, unused);
2220
2221         } else {
2222
2223                 /* use grid */
2224
2225                 nframes64_t next_pos = ref_point;
2226
2227                 if (forward) {
2228                         /* XXX need check on max_frames, but that needs max_frames64 or something */
2229                         next_pos += 1;
2230                 } else {
2231                         if (next_pos == 0) {
2232                                 return;
2233                         }
2234                         next_pos -= 1;
2235                 }
2236
2237                 cerr << "ref point was " << ref_point << " next was " << next_pos;
2238                 trackview.editor().snap_to (next_pos, (forward ? 1 : -1), false);
2239                 distance = ref_point - next_pos;
2240                 cerr << " final is " << next_pos << " distance = " << distance << endl;
2241         }
2242
2243         if (distance == 0) {
2244                 return;
2245         }
2246
2247         Evoral::MusicalTime delta = frames_to_beats (fabs (distance));
2248
2249         if (!forward) {
2250                 delta = -delta;
2251         }
2252
2253         start_diff_command (_("nudge"));
2254
2255         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2256                 Selection::iterator next = i;
2257                 ++next;
2258                 change_note_time (*i, delta, true);
2259                 i = next;
2260         }
2261
2262         apply_diff ();
2263 }
2264
2265 void
2266 MidiRegionView::change_channel(uint8_t channel)
2267 {
2268         start_diff_command(_("change channel"));
2269         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2270                 diff_add_change (*i, MidiModel::DiffCommand::Channel, channel);
2271         }
2272         apply_diff();
2273 }
2274
2275
2276 void
2277 MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
2278 {
2279         if (_mouse_state == SelectTouchDragging) {
2280                 note_selected(ev, true);
2281         }
2282
2283         char buf[4];
2284         snprintf (buf, sizeof (buf), "%d", (int) ev->note()->note());
2285         // This causes an infinite loop on note add sometimes
2286         //PublicEditor& editor (trackview.editor());
2287         //editor.show_verbose_canvas_cursor_with (Evoral::midi_note_name (ev->note()->note()));
2288         //editor.show_verbose_canvas_cursor_with (buf);
2289 }
2290
2291 void
2292 MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
2293 {
2294         PublicEditor& editor (trackview.editor());
2295         editor.hide_verbose_canvas_cursor ();
2296 }
2297
2298
2299 void
2300 MidiRegionView::switch_source(boost::shared_ptr<Source> src)
2301 {
2302         boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
2303         if (msrc)
2304                 display_model(msrc->model());
2305 }
2306
2307 void
2308 MidiRegionView::set_frame_color()
2309 {
2310         if (frame) {
2311                 if (_selected && should_show_selection) {
2312                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
2313                 } else {
2314                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
2315                 }
2316         }
2317 }
2318
2319 void
2320 MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
2321 {
2322         switch (mode) {
2323         case AllChannels:
2324         case FilterChannels:
2325                 _force_channel = -1;
2326                 break;
2327         case ForceChannel:
2328                 _force_channel = mask;
2329                 mask = 0xFFFF; // Show all notes as active (below)
2330         };
2331
2332         // Update notes for selection
2333         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2334                 (*i)->on_channel_selection_change(mask);
2335         }
2336
2337         _last_channel_selection = mask;
2338 }
2339
2340 void
2341 MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
2342 {
2343         _model_name         = model;
2344         _custom_device_mode = custom_device_mode;
2345         redisplay_model();
2346 }
2347
2348 void
2349 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
2350 {
2351         if (_selection.empty()) {
2352                 return;
2353         }
2354
2355         PublicEditor& editor (trackview.editor());
2356
2357         switch (op) {
2358         case Cut:
2359         case Copy:
2360                 editor.get_cut_buffer().add (selection_as_cut_buffer());
2361                 break;
2362         default:
2363                 break;
2364         }
2365
2366         start_delta_command();
2367
2368         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2369                 switch (op) {
2370                 case Copy:
2371                         break;
2372                 case Cut:
2373                         delta_remove_note (*i);
2374                         break;
2375                 case Clear:
2376                         break;
2377                 }
2378         }
2379
2380         apply_delta();
2381 }
2382
2383 MidiCutBuffer*
2384 MidiRegionView::selection_as_cut_buffer () const
2385 {
2386         Notes notes;
2387
2388         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2389                 notes.insert (boost::shared_ptr<NoteType> (new NoteType (*((*i)->note().get()))));
2390         }
2391
2392         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
2393         cb->set (notes);
2394
2395         return cb;
2396 }
2397
2398 void
2399 MidiRegionView::paste (nframes64_t pos, float times, const MidiCutBuffer& mcb)
2400 {
2401         if (mcb.empty()) {
2402                 return;
2403         }
2404
2405         start_delta_command (_("paste"));
2406
2407         Evoral::MusicalTime beat_delta;
2408         Evoral::MusicalTime paste_pos_beats;
2409         Evoral::MusicalTime duration;
2410         Evoral::MusicalTime end_point;
2411
2412         duration = (*mcb.notes().rbegin())->end_time() - (*mcb.notes().begin())->time();
2413         paste_pos_beats = frames_to_beats (pos - _region->position());
2414         beat_delta = (*mcb.notes().begin())->time() - paste_pos_beats;
2415         paste_pos_beats = 0;
2416
2417         _selection.clear ();
2418
2419         for (int n = 0; n < (int) times; ++n) {
2420
2421                 for (Notes::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
2422
2423                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
2424                         copied_note->set_time (paste_pos_beats + copied_note->time() - beat_delta);
2425
2426                         /* make all newly added notes selected */
2427
2428                         delta_add_note (copied_note, true);
2429                         end_point = copied_note->end_time();
2430                 }
2431
2432                 paste_pos_beats += duration;
2433         }
2434
2435         /* if we pasted past the current end of the region, extend the region */
2436
2437         nframes64_t end_frame = _region->position() + beats_to_frames (end_point);
2438         nframes64_t region_end = _region->position() + _region->length() - 1;
2439
2440         if (end_frame > region_end) {
2441
2442                 trackview.session()->begin_reversible_command (_("paste"));
2443
2444                 XMLNode& before (_region->get_state());
2445                 _region->set_length (end_frame, this);
2446                 trackview.session()->add_command (new MementoCommand<Region>(*_region, &before, &_region->get_state()));
2447         }
2448
2449         apply_delta ();
2450 }
2451
2452 struct EventNoteTimeEarlyFirstComparator {
2453     bool operator() (CanvasNoteEvent* a, CanvasNoteEvent* b) {
2454             return a->note()->time() < b->note()->time();
2455     }
2456 };
2457
2458 void
2459 MidiRegionView::time_sort_events ()
2460 {
2461         if (!_sort_needed) {
2462                 return;
2463         }
2464
2465         EventNoteTimeEarlyFirstComparator cmp;
2466         _events.sort (cmp);
2467
2468         _sort_needed = false;
2469 }
2470
2471 void
2472 MidiRegionView::goto_next_note ()
2473 {
2474         // nframes64_t pos = -1;
2475         bool use_next = false;
2476
2477         if (_events.back()->selected()) {
2478                 return;
2479         }
2480
2481         time_sort_events ();
2482
2483         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2484                 if ((*i)->selected()) {
2485                         use_next = true;
2486                         continue;
2487                 } else if (use_next) {
2488                         unique_select (*i);
2489                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2490                         return;
2491                 }
2492         }
2493
2494         /* use the first one */
2495
2496         unique_select (_events.front());
2497
2498 }
2499
2500 void
2501 MidiRegionView::goto_previous_note ()
2502 {
2503         // nframes64_t pos = -1;
2504         bool use_next = false;
2505
2506         if (_events.front()->selected()) {
2507                 return;
2508         }
2509
2510         time_sort_events ();
2511
2512         for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
2513                 if ((*i)->selected()) {
2514                         use_next = true;
2515                         continue;
2516                 } else if (use_next) {
2517                         unique_select (*i);
2518                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2519                         return;
2520                 }
2521         }
2522
2523         /* use the last one */
2524
2525         unique_select (*(_events.rbegin()));
2526 }
2527
2528 void
2529 MidiRegionView::selection_as_notelist (Notes& selected)
2530 {
2531         time_sort_events ();
2532
2533         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2534                 if ((*i)->selected()) {
2535                         selected.insert ((*i)->note());
2536                 }
2537         }
2538 }