gtk2_ardour/midi_region_view.cc

   1 /*
   2     Copyright (C) 2001-2007 Paul Davis
   3     Author: Dave Robillard
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 #include <cmath>
  21 #include <cassert>
  22 #include <algorithm>
  23 #include <ostream>
  24
  25 #include <gtkmm.h>
  26
  27 #include <gtkmm2ext/gtk_ui.h>
  28
  29 #include <sigc++/signal.h>
  30
  31 #include "pbd/memento_command.h"
  32
  33 #include "ardour/playlist.h"
  34 #include "ardour/tempo.h"
  35 #include "ardour/midi_region.h"
  36 #include "ardour/midi_source.h"
  37 #include "ardour/midi_diskstream.h"
  38 #include "ardour/midi_model.h"
  39 #include "ardour/midi_patch_manager.h"
  40
  41 #include "evoral/Parameter.hpp"
  42 #include "evoral/Control.hpp"
  43
  44 #include "automation_region_view.h"
  45 #include "automation_time_axis.h"
  46 #include "canvas-hit.h"
  47 #include "canvas-note.h"
  48 #include "canvas-program-change.h"
  49 #include "ghostregion.h"
  50 #include "gui_thread.h"
  51 #include "keyboard.h"
  52 #include "midi_cut_buffer.h"
  53 #include "midi_list_editor.h"
  54 #include "midi_region_view.h"
  55 #include "midi_streamview.h"
  56 #include "midi_time_axis.h"
  57 #include "midi_time_axis.h"
  58 #include "midi_util.h"
  59 #include "public_editor.h"
  60 #include "selection.h"
  61 #include "simpleline.h"
  62 #include "streamview.h"
  63 #include "utils.h"
  64
  65 #include "i18n.h"
  66
  67 using namespace sigc;
  68 using namespace ARDOUR;
  69 using namespace PBD;
  70 using namespace Editing;
  71 using namespace ArdourCanvas;
  72
  73 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  74                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
  75         : RegionView (parent, tv, r, spu, basic_color)
  76         , _force_channel(-1)
  77         , _last_channel_selection(0xFFFF)
  78         , _default_note_length(1.0)
  79         , _current_range_min(0)
  80         , _current_range_max(0)
  81         , _model_name(string())
  82         , _custom_device_mode(string())
  83         , _active_notes(0)
  84         , _note_group(new ArdourCanvas::Group(*parent))
  85         , _delta_command(0)
  86         , _diff_command(0)
  87         , _mouse_state(None)
  88         , _pressed_button(0)
  89         , _sort_needed (true)
  90         , _optimization_iterator (_events.end())
  91 {
  92         _note_group->raise_to_top();
  93 }
  94
  95 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  96                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color,
  97                 TimeAxisViewItem::Visibility visibility)
  98         : RegionView (parent, tv, r, spu, basic_color, false, visibility)
  99         , _force_channel(-1)
 100         , _last_channel_selection(0xFFFF)
 101         , _default_note_length(1.0)
 102         , _model_name(string())
 103         , _custom_device_mode(string())
 104         , _active_notes(0)
 105         , _note_group(new ArdourCanvas::Group(*parent))
 106         , _delta_command(0)
 107         , _diff_command(0)
 108         , _mouse_state(None)
 109         , _pressed_button(0)
 110         , _sort_needed (true)
 111         , _optimization_iterator (_events.end())
 112
 113 {
 114         _note_group->raise_to_top();
 115 }
 116
 117
 118 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 119         : sigc::trackable(other)
 120         , RegionView (other)
 121         , _force_channel(-1)
 122         , _last_channel_selection(0xFFFF)
 123         , _default_note_length(1.0)
 124         , _model_name(string())
 125         , _custom_device_mode(string())
 126         , _active_notes(0)
 127         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 128         , _delta_command(0)
 129         , _diff_command(0)
 130         , _mouse_state(None)
 131         , _pressed_button(0)
 132         , _sort_needed (true)
 133         , _optimization_iterator (_events.end())
 134 {
 135         Gdk::Color c;
 136         int r,g,b,a;
 137
 138         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 139         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 140
 141         init (c, false);
 142 }
 143
 144 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 145         : RegionView (other, boost::shared_ptr<Region> (region))
 146         , _force_channel(-1)
 147         , _last_channel_selection(0xFFFF)
 148         , _default_note_length(1.0)
 149         , _model_name(string())
 150         , _custom_device_mode(string())
 151         , _active_notes(0)
 152         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 153         , _delta_command(0)
 154         , _diff_command(0)
 155         , _mouse_state(None)
 156         , _pressed_button(0)
 157         , _sort_needed (true)
 158         , _optimization_iterator (_events.end())
 159 {
 160         Gdk::Color c;
 161         int r,g,b,a;
 162
 163         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 164         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 165
 166         init (c, true);
 167 }
 168
 169 void
 170 MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 171 {
 172         if (wfd) {
 173                 midi_region()->midi_source(0)->load_model();
 174         }
 175
 176         _model = midi_region()->midi_source(0)->model();
 177         _enable_display = false;
 178
 179         RegionView::init (basic_color, false);
 180
 181         compute_colors (basic_color);
 182
 183         set_height (trackview.current_height());
 184
 185         region_muted ();
 186         region_sync_changed ();
 187         region_resized (BoundsChanged);
 188         region_locked ();
 189
 190         reset_width_dependent_items (_pixel_width);
 191
 192         set_colors ();
 193
 194         _enable_display = true;
 195         if (_model) {
 196                 if (wfd) {
 197                         display_model (_model);
 198                 }
 199         }
 200
 201         group->raise_to_top();
 202         group->signal_event().connect (mem_fun (this, &MidiRegionView::canvas_event), false);
 203
 204         midi_view()->signal_channel_mode_changed().connect(
 205                         mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
 206
 207         midi_view()->signal_midi_patch_settings_changed().connect(
 208                         mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
 209 }
 210
 211 bool
 212 MidiRegionView::canvas_event(GdkEvent* ev)
 213 {
 214         PublicEditor& editor (trackview.editor());
 215
 216         if (!editor.internal_editing()) {
 217                 return false;
 218         }
 219
 220         static double drag_start_x, drag_start_y;
 221         static double last_x, last_y;
 222         double event_x, event_y;
 223         nframes64_t event_frame = 0;
 224         bool fine;
 225
 226         static ArdourCanvas::SimpleRect* drag_rect = 0;
 227
 228         /* XXX: note that as of August 2009, the GnomeCanvas does not propagate scroll events
 229            to its items, which means that ev->type == GDK_SCROLL will never be seen
 230         */
 231
 232         switch (ev->type) {
 233         case GDK_SCROLL:
 234                 fine = Keyboard::modifier_state_equals (ev->scroll.state, Keyboard::Level4Modifier);
 235
 236                 if (ev->scroll.direction == GDK_SCROLL_UP) {
 237                         change_velocities (true, fine, false);
 238                         return true;
 239                 } else if (ev->scroll.direction == GDK_SCROLL_DOWN) {
 240                         change_velocities (false, fine, false);
 241                         return true;
 242                 } else {
 243                         return false;
 244                 }
 245                 break;
 246
 247         case GDK_KEY_PRESS:
 248
 249                 /* since GTK bindings are generally activated on press, and since
 250                    detectable auto-repeat is the name of the game and only sends
 251                    repeated presses, carry out key actions at key press, not release.
 252                 */
 253
 254                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R){
 255                         _mouse_state = SelectTouchDragging;
 256                         return true;
 257
 258                 } else if (ev->key.keyval == GDK_Escape) {
 259                         clear_selection();
 260                         _mouse_state = None;
 261
 262                 } else if (ev->key.keyval == GDK_comma || ev->key.keyval == GDK_period) {
 263
 264                         bool start = (ev->key.keyval == GDK_comma);
 265                         bool end = (ev->key.keyval == GDK_period);
 266                         bool shorter = Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier);
 267                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 268
 269                         change_note_lengths (fine, shorter, start, end);
 270
 271                         return true;
 272
 273                 } else if (ev->key.keyval == GDK_Delete) {
 274
 275                         delete_selection();
 276                         return true;
 277
 278                 } else if (ev->key.keyval == GDK_Tab) {
 279
 280                         if (Keyboard::modifier_state_equals (ev->key.state, Keyboard::PrimaryModifier)) {
 281                                 goto_previous_note ();
 282                         } else {
 283                                 goto_next_note ();
 284                         }
 285                         return true;
 286
 287                 } else if (ev->key.keyval == GDK_Up) {
 288
 289                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 290                         bool fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 291
 292                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 293                                 change_velocities (true, fine, allow_smush);
 294                         } else {
 295                                 transpose (true, fine, allow_smush);
 296                         }
 297                         return true;
 298
 299                 } else if (ev->key.keyval == GDK_Down) {
 300
 301                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 302                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 303
 304                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 305                                 change_velocities (false, fine, allow_smush);
 306                         } else {
 307                                 transpose (false, fine, allow_smush);
 308                         }
 309                         return true;
 310
 311                 } else if (ev->key.keyval == GDK_Left) {
 312
 313                         nudge_notes (false);
 314                         return true;
 315
 316                 } else if (ev->key.keyval == GDK_Right) {
 317
 318                         nudge_notes (true);
 319                         return true;
 320
 321                 } else if (ev->key.keyval == GDK_Control_L) {
 322                         return true;
 323
 324                 } else if (ev->key.keyval == GDK_r) {
 325                         /* if we're not step editing, this really doesn't matter */
 326                         midi_view()->step_edit_rest ();
 327                         return true;
 328                 }
 329
 330                 return false;
 331
 332         case GDK_KEY_RELEASE:
 333                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R) {
 334                         _mouse_state = None;
 335                         return true;
 336                 }
 337                 return false;
 338
 339         case GDK_BUTTON_PRESS:
 340                 if (_mouse_state != SelectTouchDragging && ev->button.button == 1) {
 341                         _pressed_button = ev->button.button;
 342                         _mouse_state = Pressed;
 343                         return true;
 344                 }
 345                 _pressed_button = ev->button.button;
 346                 return true;
 347
 348         case GDK_2BUTTON_PRESS:
 349                 return true;
 350
 351         case GDK_ENTER_NOTIFY:
 352                 /* FIXME: do this on switch to note tool, too, if the pointer is already in */
 353                 Keyboard::magic_widget_grab_focus();
 354                 group->grab_focus();
 355                 break;
 356
 357         case GDK_MOTION_NOTIFY:
 358                 event_x = ev->motion.x;
 359                 event_y = ev->motion.y;
 360                 group->w2i(event_x, event_y);
 361
 362                 // convert event_x to global frame
 363                 event_frame = trackview.editor().pixel_to_frame(event_x) + _region->position();
 364                 trackview.editor().snap_to(event_frame);
 365                 // convert event_frame back to local coordinates relative to position
 366                 event_frame -= _region->position();
 367
 368                 switch (_mouse_state) {
 369                 case Pressed: // Drag start
 370
 371                         // Select drag start
 372                         if (_pressed_button == 1 && editor.current_mouse_mode() == MouseObject) {
 373                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 374                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 375                                 last_x = event_x;
 376                                 last_y = event_y;
 377                                 drag_start_x = event_x;
 378                                 drag_start_y = event_y;
 379
 380                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 381                                 drag_rect->property_x1() = event_x;
 382                                 drag_rect->property_y1() = event_y;
 383                                 drag_rect->property_x2() = event_x;
 384                                 drag_rect->property_y2() = event_y;
 385                                 drag_rect->property_outline_what() = 0xFF;
 386                                 drag_rect->property_outline_color_rgba()
 387                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 388                                 drag_rect->property_fill_color_rgba()
 389                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 390
 391                                 _mouse_state = SelectRectDragging;
 392                                 return true;
 393
 394                         // Add note drag start
 395                         } else if (editor.current_mouse_mode() == MouseRange) {
 396                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 397                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 398                                 last_x = event_x;
 399                                 last_y = event_y;
 400                                 drag_start_x = event_x;
 401                                 drag_start_y = event_y;
 402
 403                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 404                                 drag_rect->property_x1() = trackview.editor().frame_to_pixel(event_frame);
 405
 406                                 drag_rect->property_y1() = midi_stream_view()->note_to_y(
 407                                                 midi_stream_view()->y_to_note(event_y));
 408                                 drag_rect->property_x2() = event_x;
 409                                 drag_rect->property_y2() = drag_rect->property_y1()
 410                                                          + floor(midi_stream_view()->note_height());
 411                                 drag_rect->property_outline_what() = 0xFF;
 412                                 drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 413                                 drag_rect->property_fill_color_rgba()    = 0xFFFFFF66;
 414
 415                                 _mouse_state = AddDragging;
 416                                 return true;
 417                         }
 418
 419                         return false;
 420
 421                 case SelectRectDragging: // Select drag motion
 422                 case AddDragging: // Add note drag motion
 423                         if (ev->motion.is_hint) {
 424                                 int t_x;
 425                                 int t_y;
 426                                 GdkModifierType state;
 427                                 gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
 428                                 event_x = t_x;
 429                                 event_y = t_y;
 430                         }
 431
 432                         if (_mouse_state == AddDragging)
 433                                 event_x = trackview.editor().frame_to_pixel(event_frame);
 434
 435                         if (drag_rect) {
 436                                 if (event_x > drag_start_x)
 437                                         drag_rect->property_x2() = event_x;
 438                                 else
 439                                         drag_rect->property_x1() = event_x;
 440                         }
 441
 442                         if (drag_rect && _mouse_state == SelectRectDragging) {
 443                                 if (event_y > drag_start_y)
 444                                         drag_rect->property_y2() = event_y;
 445                                 else
 446                                         drag_rect->property_y1() = event_y;
 447
 448                                 update_drag_selection(drag_start_x, event_x, drag_start_y, event_y);
 449                         }
 450
 451                         last_x = event_x;
 452                         last_y = event_y;
 453
 454                 case SelectTouchDragging:
 455                         return false;
 456
 457                 default:
 458                         break;
 459                 }
 460                 break;
 461
 462         case GDK_BUTTON_RELEASE:
 463                 event_x = ev->motion.x;
 464                 event_y = ev->motion.y;
 465                 group->w2i(event_x, event_y);
 466                 group->ungrab(ev->button.time);
 467                 event_frame = trackview.editor().pixel_to_frame(event_x);
 468
 469                 if (ev->button.button == 3) {
 470                         return false;
 471                 } else if (_pressed_button != 1) {
 472                         return false;
 473                 }
 474
 475                 switch (_mouse_state) {
 476                 case Pressed: // Clicked
 477                         switch (editor.current_mouse_mode()) {
 478                         case MouseObject:
 479                         case MouseTimeFX:
 480                                 clear_selection();
 481                                 break;
 482                         case MouseRange:
 483                                 create_note_at(event_x, event_y, _default_note_length);
 484                                 break;
 485                         default:
 486                                 break;
 487                         }
 488                         _mouse_state = None;
 489                         break;
 490                 case SelectRectDragging: // Select drag done
 491                         _mouse_state = None;
 492                         delete drag_rect;
 493                         drag_rect = 0;
 494                         break;
 495                 case AddDragging: // Add drag done
 496                         _mouse_state = None;
 497                         if (drag_rect->property_x2() > drag_rect->property_x1() + 2) {
 498                                 const double x      = drag_rect->property_x1();
 499                                 const double length = trackview.editor().pixel_to_frame(
 500                                                         drag_rect->property_x2() - drag_rect->property_x1());
 501
 502                                 create_note_at(x, drag_rect->property_y1(), frames_to_beats(length));
 503                         }
 504
 505                         delete drag_rect;
 506                         drag_rect = 0;
 507                 default: break;
 508                 }
 509
 510         default: break;
 511         }
 512
 513         return false;
 514 }
 515
 516 void
 517 MidiRegionView::show_list_editor ()
 518 {
 519         MidiListEditor* mle = new MidiListEditor (trackview.session(), midi_region());
 520         mle->show ();
 521 }
 522
 523 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 524  * \param x horizontal position in pixels
 525  * \param y vertical position in pixels
 526  * \param length duration of the note in beats */
 527 void
 528 MidiRegionView::create_note_at(double x, double y, double length)
 529 {
 530         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 531         MidiStreamView* const view = mtv->midi_view();
 532
 533         double note = midi_stream_view()->y_to_note(y);
 534
 535         assert(note >= 0.0);
 536         assert(note <= 127.0);
 537
 538         // Start of note in frames relative to region start
 539         nframes64_t start_frames = snap_frame_to_frame(trackview.editor().pixel_to_frame(x));
 540         assert(start_frames >= 0);
 541
 542         // Snap length
 543         length = frames_to_beats(
 544                         snap_frame_to_frame(start_frames + beats_to_frames(length)) - start_frames);
 545
 546         const boost::shared_ptr<NoteType> new_note(new NoteType(0,
 547                         frames_to_beats(start_frames + _region->start()), length,
 548                         (uint8_t)note, 0x40));
 549
 550         view->update_note_range(new_note->note());
 551
 552         MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
 553         cmd->add(new_note);
 554         _model->apply_command(trackview.session(), cmd);
 555
 556         play_midi_note (new_note);
 557 }
 558
 559 void
 560 MidiRegionView::clear_events()
 561 {
 562         clear_selection();
 563
 564         MidiGhostRegion* gr;
 565         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 566                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 567                         gr->clear_events();
 568                 }
 569         }
 570
 571         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 572                 delete *i;
 573         }
 574
 575         _events.clear();
 576         _pgm_changes.clear();
 577         _sys_exes.clear();
 578         _optimization_iterator = _events.end();
 579 }
 580
 581
 582 void
 583 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 584 {
 585         _model = model;
 586         content_connection.disconnect ();
 587         content_connection = _model->ContentsChanged.connect(sigc::mem_fun(this, &MidiRegionView::redisplay_model));
 588         clear_events ();
 589
 590         if (_enable_display) {
 591                 redisplay_model();
 592         }
 593 }
 594
 595
 596 void
 597 MidiRegionView::start_delta_command(string name)
 598 {
 599         if (!_delta_command) {
 600                 _delta_command = _model->new_delta_command(name);
 601         }
 602 }
 603
 604 void
 605 MidiRegionView::start_diff_command(string name)
 606 {
 607         if (!_diff_command) {
 608                 _diff_command = _model->new_diff_command(name);
 609         }
 610 }
 611
 612 void
 613 MidiRegionView::delta_add_note(const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
 614 {
 615         if (_delta_command) {
 616                 _delta_command->add(note);
 617         }
 618         if (selected) {
 619                 _marked_for_selection.insert(note);
 620         }
 621         if (show_velocity) {
 622                 _marked_for_velocity.insert(note);
 623         }
 624 }
 625
 626 void
 627 MidiRegionView::delta_remove_note(ArdourCanvas::CanvasNoteEvent* ev)
 628 {
 629         if (_delta_command && ev->note()) {
 630                 _delta_command->remove(ev->note());
 631         }
 632 }
 633
 634 void
 635 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 636                                  MidiModel::DiffCommand::Property property,
 637                                  uint8_t val)
 638 {
 639         if (_diff_command) {
 640                 _diff_command->change (ev->note(), property, val);
 641         }
 642 }
 643
 644 void
 645 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 646                                  MidiModel::DiffCommand::Property property,
 647                                  Evoral::MusicalTime val)
 648 {
 649         if (_diff_command) {
 650                 _diff_command->change (ev->note(), property, val);
 651         }
 652 }
 653
 654 void
 655 MidiRegionView::apply_delta()
 656 {
 657         if (!_delta_command) {
 658                 return;
 659         }
 660
 661         // Mark all selected notes for selection when model reloads
 662         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 663                 _marked_for_selection.insert((*i)->note());
 664         }
 665
 666         _model->apply_command(trackview.session(), _delta_command);
 667         _delta_command = 0;
 668         midi_view()->midi_track()->diskstream()->playlist_modified();
 669
 670         _marked_for_selection.clear();
 671         _marked_for_velocity.clear();
 672 }
 673
 674 void
 675 MidiRegionView::apply_diff ()
 676 {
 677         if (!_diff_command) {
 678                 return;
 679         }
 680
 681         _model->apply_command(trackview.session(), _diff_command);
 682         _diff_command = 0;
 683         midi_view()->midi_track()->diskstream()->playlist_modified();
 684
 685         _marked_for_velocity.clear();
 686 }
 687
 688 void
 689 MidiRegionView::apply_delta_as_subcommand()
 690 {
 691         if (!_delta_command) {
 692                 return;
 693         }
 694
 695         // Mark all selected notes for selection when model reloads
 696         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 697                 _marked_for_selection.insert((*i)->note());
 698         }
 699
 700         _model->apply_command_as_subcommand(trackview.session(), _delta_command);
 701         _delta_command = 0;
 702         midi_view()->midi_track()->diskstream()->playlist_modified();
 703
 704         _marked_for_selection.clear();
 705         _marked_for_velocity.clear();
 706 }
 707
 708 void
 709 MidiRegionView::apply_diff_as_subcommand()
 710 {
 711         if (!_diff_command) {
 712                 return;
 713         }
 714
 715         // Mark all selected notes for selection when model reloads
 716         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 717                 _marked_for_selection.insert((*i)->note());
 718         }
 719
 720         _model->apply_command_as_subcommand(trackview.session(), _diff_command);
 721         _diff_command = 0;
 722         midi_view()->midi_track()->diskstream()->playlist_modified();
 723
 724         _marked_for_selection.clear();
 725         _marked_for_velocity.clear();
 726 }
 727
 728 void
 729 MidiRegionView::abort_command()
 730 {
 731         delete _delta_command;
 732         _delta_command = 0;
 733         delete _diff_command;
 734         _diff_command = 0;
 735         clear_selection();
 736 }
 737
 738 CanvasNoteEvent*
 739 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
 740 {
 741         if (_optimization_iterator != _events.end()) {
 742                 ++_optimization_iterator;
 743         }
 744
 745         if (_optimization_iterator != _events.end() && (*_optimization_iterator)->note() == note) {
 746                 return *_optimization_iterator;
 747         }
 748
 749         for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
 750                 if ((*_optimization_iterator)->note() == note) {
 751                         return *_optimization_iterator;
 752                 }
 753         }
 754
 755         return 0;
 756 }
 757
 758 void
 759 MidiRegionView::redisplay_model()
 760 {
 761         // Don't redisplay the model if we're currently recording and displaying that
 762         if (_active_notes) {
 763                 return;
 764         }
 765
 766         if (!_model) {
 767                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
 768                 return;
 769         }
 770
 771         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 772                 (*i)->invalidate ();
 773         }
 774
 775         _model->read_lock();
 776
 777         MidiModel::Notes& notes (_model->notes());
 778         _optimization_iterator = _events.begin();
 779
 780         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 781
 782                 boost::shared_ptr<NoteType> note (*n);
 783                 CanvasNoteEvent* cne;
 784                 bool visible;
 785
 786                 if (note_in_region_range (note, visible)) {
 787
 788                         if ((cne = find_canvas_note (note)) != 0) {
 789
 790                                 cne->validate ();
 791
 792                                 CanvasNote* cn;
 793                                 CanvasHit* ch;
 794
 795                                 if ((cn = dynamic_cast<CanvasNote*>(cne)) != 0) {
 796                                         update_note (cn);
 797                                 } else if ((ch = dynamic_cast<CanvasHit*>(cne)) != 0) {
 798                                         update_hit (ch);
 799                                 }
 800
 801                                 if (visible) {
 802                                         cne->show ();
 803                                 } else {
 804                                         cne->hide ();
 805                                 }
 806
 807                         } else {
 808
 809                                 add_note (note, visible);
 810                         }
 811
 812                 } else {
 813
 814                         if ((cne = find_canvas_note (note)) != 0) {
 815                                 cne->validate ();
 816                                 cne->hide ();
 817                         }
 818                 }
 819         }
 820
 821         /* remove note items that are no longer valid */
 822
 823         for (Events::iterator i = _events.begin(); i != _events.end(); ) {
 824                 if (!(*i)->valid ()) {
 825                         delete *i;
 826                         i = _events.erase (i);
 827                 } else {
 828                         ++i;
 829                 }
 830         }
 831
 832         display_sysexes();
 833         display_program_changes();
 834
 835         _model->read_unlock();
 836
 837         _marked_for_selection.clear ();
 838         _marked_for_velocity.clear ();
 839
 840         /* we may have caused _events to contain things out of order (e.g. if a note
 841            moved earlier or later). we don't generally need them in time order, but
 842            make a note that a sort is required for those cases that require it.
 843         */
 844
 845         _sort_needed = true;
 846 }
 847
 848 void
 849 MidiRegionView::display_program_changes()
 850 {
 851         boost::shared_ptr<Evoral::Control> control = _model->control(MidiPgmChangeAutomation);
 852         if (!control) {
 853                 return;
 854         }
 855
 856         Glib::Mutex::Lock lock (control->list()->lock());
 857
 858         uint8_t channel = control->parameter().channel();
 859
 860         for (AutomationList::const_iterator event = control->list()->begin();
 861                         event != control->list()->end(); ++event) {
 862                 double event_time     = (*event)->when;
 863                 double program_number = floor((*event)->value + 0.5);
 864
 865                 // Get current value of bank select MSB at time of the program change
 866                 Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
 867                 boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
 868                 uint8_t msb = 0;
 869                 if (msb_control != 0) {
 870                         msb = uint8_t(floor(msb_control->get_float(true, event_time) + 0.5));
 871                 }
 872
 873                 // Get current value of bank select LSB at time of the program change
 874                 Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
 875                 boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
 876                 uint8_t lsb = 0;
 877                 if (lsb_control != 0) {
 878                         lsb = uint8_t(floor(lsb_control->get_float(true, event_time) + 0.5));
 879                 }
 880
 881                 MIDI::Name::PatchPrimaryKey patch_key(msb, lsb, program_number);
 882
 883                 boost::shared_ptr<MIDI::Name::Patch> patch =
 884                         MIDI::Name::MidiPatchManager::instance().find_patch(
 885                                         _model_name, _custom_device_mode, channel, patch_key);
 886
 887                 PCEvent program_change(event_time, uint8_t(program_number), channel);
 888
 889                 if (patch != 0) {
 890                         add_pgm_change(program_change, patch->name());
 891                 } else {
 892                         char buf[4];
 893                         snprintf(buf, 4, "%d", int(program_number));
 894                         add_pgm_change(program_change, buf);
 895                 }
 896         }
 897 }
 898
 899 void
 900 MidiRegionView::display_sysexes()
 901 {
 902         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
 903                 Evoral::MusicalTime time = (*i)->time();
 904                 assert(time >= 0);
 905
 906                 ostringstream str;
 907                 str << hex;
 908                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
 909                         str << int((*i)->buffer()[b]);
 910                         if (b != (*i)->size() -1) {
 911                                 str << " ";
 912                         }
 913                 }
 914                 string text = str.str();
 915
 916                 ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 917
 918                 const double x = trackview.editor().frame_to_pixel(beats_to_frames(time));
 919
 920                 double height = midi_stream_view()->contents_height();
 921
 922                 boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
 923                                 new CanvasSysEx(*this, *group, text, height, x, 1.0));
 924
 925                 // Show unless program change is beyond the region bounds
 926                 if (time - _region->start() >= _region->length() || time < _region->start()) {
 927                         sysex->hide();
 928                 } else {
 929                         sysex->show();
 930                 }
 931
 932                 _sys_exes.push_back(sysex);
 933         }
 934 }
 935
 936
 937 MidiRegionView::~MidiRegionView ()
 938 {
 939         in_destructor = true;
 940
 941         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 942
 943         if (_active_notes) {
 944                 end_write();
 945         }
 946
 947         _selection.clear();
 948         clear_events();
 949         delete _note_group;
 950         delete _delta_command;
 951 }
 952
 953 void
 954 MidiRegionView::region_resized (Change what_changed)
 955 {
 956         RegionView::region_resized(what_changed);
 957
 958         if (what_changed & ARDOUR::PositionChanged) {
 959                 set_duration(_region->length(), 0);
 960                 if (_enable_display) {
 961                         redisplay_model();
 962                 }
 963         }
 964 }
 965
 966 void
 967 MidiRegionView::reset_width_dependent_items (double pixel_width)
 968 {
 969         RegionView::reset_width_dependent_items(pixel_width);
 970         assert(_pixel_width == pixel_width);
 971
 972         if (_enable_display) {
 973                 redisplay_model();
 974         }
 975 }
 976
 977 void
 978 MidiRegionView::set_height (double height)
 979 {
 980         static const double FUDGE = 2.0;
 981         const double old_height = _height;
 982         RegionView::set_height(height);
 983         _height = height - FUDGE;
 984
 985         apply_note_range(midi_stream_view()->lowest_note(),
 986                          midi_stream_view()->highest_note(),
 987                          height != old_height + FUDGE);
 988
 989         if (name_pixbuf) {
 990                 name_pixbuf->raise_to_top();
 991         }
 992 }
 993
 994
 995 /** Apply the current note range from the stream view
 996  * by repositioning/hiding notes as necessary
 997  */
 998 void
 999 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
1000 {
1001         if (!_enable_display) {
1002                 return;
1003         }
1004
1005         if (!force && _current_range_min == min && _current_range_max == max) {
1006                 return;
1007         }
1008
1009         _current_range_min = min;
1010         _current_range_max = max;
1011
1012         for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
1013                 CanvasNoteEvent* event = *i;
1014                 boost::shared_ptr<NoteType> note (event->note());
1015
1016                 if (note->note() < _current_range_min ||
1017                     note->note() > _current_range_max) {
1018                         event->hide();
1019                 } else {
1020                         event->show();
1021                 }
1022
1023                 if (CanvasNote* cnote = dynamic_cast<CanvasNote*>(event)) {
1024
1025                         const double y1 = midi_stream_view()->note_to_y(note->note());
1026                         const double y2 = y1 + floor(midi_stream_view()->note_height());
1027
1028                         cnote->property_y1() = y1;
1029                         cnote->property_y2() = y2;
1030
1031                 } else if (CanvasHit* chit = dynamic_cast<CanvasHit*>(event)) {
1032
1033                         double x = trackview.editor().frame_to_pixel(
1034                                 beats_to_frames(note->time()) - _region->start());
1035                         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1036                         double y = midi_stream_view()->note_to_y(event->note()->note())
1037                                 + ((diamond_size-2.0) / 4.0);
1038
1039                         chit->set_height (diamond_size);
1040                         chit->move (x - chit->x1(), y - chit->y1());
1041                         chit->show ();
1042                 }
1043         }
1044 }
1045
1046 GhostRegion*
1047 MidiRegionView::add_ghost (TimeAxisView& tv)
1048 {
1049         CanvasNote* note;
1050
1051         double unit_position = _region->position () / samples_per_unit;
1052         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
1053         MidiGhostRegion* ghost;
1054
1055         if (mtv && mtv->midi_view()) {
1056                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
1057                    to allow having midi notes on top of note lines and waveforms.
1058                  */
1059                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
1060         } else {
1061                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
1062         }
1063
1064         ghost->set_height ();
1065         ghost->set_duration (_region->length() / samples_per_unit);
1066         ghosts.push_back (ghost);
1067
1068         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1069                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
1070                         ghost->add_note(note);
1071                 }
1072         }
1073
1074         ghost->GoingAway.connect (mem_fun(*this, &MidiRegionView::remove_ghost));
1075
1076         return ghost;
1077 }
1078
1079
1080 /** Begin tracking note state for successive calls to add_event
1081  */
1082 void
1083 MidiRegionView::begin_write()
1084 {
1085         assert(!_active_notes);
1086         _active_notes = new CanvasNote*[128];
1087         for (unsigned i=0; i < 128; ++i) {
1088                 _active_notes[i] = 0;
1089         }
1090 }
1091
1092
1093 /** Destroy note state for add_event
1094  */
1095 void
1096 MidiRegionView::end_write()
1097 {
1098         delete[] _active_notes;
1099         _active_notes = 0;
1100         _marked_for_selection.clear();
1101         _marked_for_velocity.clear();
1102 }
1103
1104
1105 /** Resolve an active MIDI note (while recording).
1106  */
1107 void
1108 MidiRegionView::resolve_note(uint8_t note, double end_time)
1109 {
1110         if (midi_view()->note_mode() != Sustained) {
1111                 return;
1112         }
1113
1114         if (_active_notes && _active_notes[note]) {
1115                 const nframes64_t end_time_frames = beats_to_frames(end_time);
1116                 _active_notes[note]->property_x2() = trackview.editor().frame_to_pixel(end_time_frames);
1117                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
1118                 _active_notes[note] = 0;
1119         }
1120 }
1121
1122
1123 /** Extend active notes to rightmost edge of region (if length is changed)
1124  */
1125 void
1126 MidiRegionView::extend_active_notes()
1127 {
1128         if (!_active_notes) {
1129                 return;
1130         }
1131
1132         for (unsigned i=0; i < 128; ++i) {
1133                 if (_active_notes[i]) {
1134                         _active_notes[i]->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1135                 }
1136         }
1137 }
1138
1139 void
1140 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1141 {
1142         if (!trackview.editor().sound_notes()) {
1143                 return;
1144         }
1145
1146         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1147         assert(route_ui);
1148
1149         route_ui->midi_track()->write_immediate_event(
1150                         note->on_event().size(), note->on_event().buffer());
1151
1152         const double note_length_beats = (note->off_event().time() - note->on_event().time());
1153         nframes_t note_length_ms = beats_to_frames(note_length_beats)
1154                         * (1000 / (double)route_ui->session().nominal_frame_rate());
1155         Glib::signal_timeout().connect(bind(mem_fun(this, &MidiRegionView::play_midi_note_off), note),
1156                         note_length_ms, G_PRIORITY_DEFAULT);
1157 }
1158
1159 bool
1160 MidiRegionView::play_midi_note_off(boost::shared_ptr<NoteType> note)
1161 {
1162         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1163         assert(route_ui);
1164
1165         route_ui->midi_track()->write_immediate_event(
1166                         note->off_event().size(), note->off_event().buffer());
1167
1168         return false;
1169 }
1170
1171 bool
1172 MidiRegionView::note_in_region_range(const boost::shared_ptr<NoteType> note, bool& visible) const
1173 {
1174         const nframes64_t note_start_frames = beats_to_frames(note->time());
1175
1176         bool outside = (note_start_frames - _region->start() >= _region->length()) ||
1177                 (note_start_frames < _region->start());
1178
1179         visible = (note->note() >= midi_stream_view()->lowest_note()) &&
1180                 (note->note() <= midi_stream_view()->highest_note());
1181
1182         return !outside;
1183 }
1184
1185 void
1186 MidiRegionView::update_note (CanvasNote* ev)
1187 {
1188         boost::shared_ptr<NoteType> note = ev->note();
1189
1190         const nframes64_t note_start_frames = beats_to_frames(note->time());
1191         const nframes64_t note_end_frames   = beats_to_frames(note->end_time());
1192
1193         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1194
1195
1196         const double y1 = midi_stream_view()->note_to_y(note->note());
1197         const double note_endpixel =
1198                 trackview.editor().frame_to_pixel(note_end_frames - _region->start());
1199
1200         ev->property_x1() = x;
1201         ev->property_y1() = y1;
1202         if (note->length() > 0) {
1203                 ev->property_x2() = note_endpixel;
1204         } else {
1205                 ev->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1206         }
1207         ev->property_y2() = y1 + floor(midi_stream_view()->note_height());
1208
1209         if (note->length() == 0) {
1210                 if (_active_notes) {
1211                         assert(note->note() < 128);
1212                         // If this note is already active there's a stuck note,
1213                         // finish the old note rectangle
1214                         if (_active_notes[note->note()]) {
1215                                 CanvasNote* const old_rect = _active_notes[note->note()];
1216                                 boost::shared_ptr<NoteType> old_note = old_rect->note();
1217                                 old_rect->property_x2() = x;
1218                                 old_rect->property_outline_what() = (guint32) 0xF;
1219                         }
1220                         _active_notes[note->note()] = ev;
1221                 }
1222                 /* outline all but right edge */
1223                 ev->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
1224         } else {
1225                 /* outline all edges */
1226                 ev->property_outline_what() = (guint32) 0xF;
1227         }
1228 }
1229
1230 void
1231 MidiRegionView::update_hit (CanvasHit* ev)
1232 {
1233         boost::shared_ptr<NoteType> note = ev->note();
1234
1235         const nframes64_t note_start_frames = beats_to_frames(note->time());
1236         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1237         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1238         const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
1239
1240         ev->move(x, y);
1241 }
1242
1243 /** Add a MIDI note to the view (with length).
1244  *
1245  * If in sustained mode, notes with length 0 will be considered active
1246  * notes, and resolve_note should be called when the corresponding note off
1247  * event arrives, to properly display the note.
1248  */
1249 void
1250 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
1251 {
1252         CanvasNoteEvent* event = 0;
1253
1254         assert(note->time() >= 0);
1255         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
1256
1257         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1258
1259         if (midi_view()->note_mode() == Sustained) {
1260
1261                 CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
1262
1263                 update_note (ev_rect);
1264
1265                 event = ev_rect;
1266
1267                 MidiGhostRegion* gr;
1268
1269                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1270                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1271                                 gr->add_note(ev_rect);
1272                         }
1273                 }
1274
1275         } else if (midi_view()->note_mode() == Percussive) {
1276
1277                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
1278
1279                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size, note);
1280
1281                 update_hit (ev_diamond);
1282
1283                 event = ev_diamond;
1284
1285         } else {
1286                 event = 0;
1287         }
1288
1289         if (event) {
1290                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1291                         note_selected(event, true);
1292                 }
1293
1294                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1295                         event->show_velocity();
1296                 }
1297                 event->on_channel_selection_change(_last_channel_selection);
1298                 _events.push_back(event);
1299
1300                 if (visible) {
1301                         event->show();
1302                 } else {
1303                         event->hide ();
1304                 }
1305         }
1306 }
1307
1308 void
1309 MidiRegionView::add_note (uint8_t channel, uint8_t number, uint8_t velocity,
1310                           Evoral::MusicalTime pos, Evoral::MusicalTime len)
1311 {
1312         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
1313
1314         start_delta_command (_("step add"));
1315         delta_add_note (new_note, true, false);
1316         apply_delta();
1317
1318         /* potentially extend region to hold new note */
1319
1320         nframes64_t end_frame = _region->position() + beats_to_frames (new_note->end_time());
1321         nframes64_t region_end = _region->position() + _region->length() - 1;
1322
1323         if (end_frame > region_end) {
1324                 _region->set_length (end_frame, this);
1325         } else {
1326                 redisplay_model ();
1327         }
1328 }
1329
1330 void
1331 MidiRegionView::add_pgm_change(PCEvent& program, const string& displaytext)
1332 {
1333         assert(program.time >= 0);
1334
1335         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1336         const double x = trackview.editor().frame_to_pixel(beats_to_frames(program.time));
1337
1338         double height = midi_stream_view()->contents_height();
1339
1340         boost::shared_ptr<CanvasProgramChange> pgm_change = boost::shared_ptr<CanvasProgramChange>(
1341                         new CanvasProgramChange(*this, *group,
1342                                         displaytext,
1343                                         height,
1344                                         x, 1.0,
1345                                         _model_name,
1346                                         _custom_device_mode,
1347                                         program.time, program.channel, program.value));
1348
1349         // Show unless program change is beyond the region bounds
1350         if (program.time - _region->start() >= _region->length() || program.time < _region->start()) {
1351                 pgm_change->hide();
1352         } else {
1353                 pgm_change->show();
1354         }
1355
1356         _pgm_changes.push_back(pgm_change);
1357 }
1358
1359 void
1360 MidiRegionView::get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key)
1361 {
1362         cerr << "getting patch key at " << time << " for channel " << channel << endl;
1363         Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
1364         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1365         float msb = -1.0;
1366         if (msb_control != 0) {
1367                 msb = int(msb_control->get_float(true, time));
1368                 cerr << "got msb " << msb;
1369         }
1370
1371         Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
1372         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1373         float lsb = -1.0;
1374         if (lsb_control != 0) {
1375                 lsb = lsb_control->get_float(true, time);
1376                 cerr << " got lsb " << lsb;
1377         }
1378
1379         Evoral::Parameter program_change(MidiPgmChangeAutomation, channel, 0);
1380         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1381         float program_number = -1.0;
1382         if (program_control != 0) {
1383                 program_number = program_control->get_float(true, time);
1384                 cerr << " got program " << program_number << endl;
1385         }
1386
1387         key.msb = (int) floor(msb + 0.5);
1388         key.lsb = (int) floor(lsb + 0.5);
1389         key.program_number = (int) floor(program_number + 0.5);
1390         assert(key.is_sane());
1391 }
1392
1393
1394 void
1395 MidiRegionView::alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch)
1396 {
1397         // TODO: Get the real event here and alter them at the original times
1398         Evoral::Parameter bank_select_msb(MidiCCAutomation, old_program.channel, MIDI_CTL_MSB_BANK);
1399         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1400         if (msb_control != 0) {
1401                 msb_control->set_float(float(new_patch.msb), true, old_program.time);
1402         }
1403
1404         // TODO: Get the real event here and alter them at the original times
1405         Evoral::Parameter bank_select_lsb(MidiCCAutomation, old_program.channel, MIDI_CTL_LSB_BANK);
1406         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1407         if (lsb_control != 0) {
1408                 lsb_control->set_float(float(new_patch.lsb), true, old_program.time);
1409         }
1410
1411         Evoral::Parameter program_change(MidiPgmChangeAutomation, old_program.channel, 0);
1412         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1413
1414         assert(program_control != 0);
1415         program_control->set_float(float(new_patch.program_number), true, old_program.time);
1416
1417         redisplay_model();
1418 }
1419
1420 void
1421 MidiRegionView::program_selected(CanvasProgramChange& program, const MIDI::Name::PatchPrimaryKey& new_patch)
1422 {
1423         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1424         alter_program_change(program_change_event, new_patch);
1425 }
1426
1427 void
1428 MidiRegionView::previous_program(CanvasProgramChange& program)
1429 {
1430         MIDI::Name::PatchPrimaryKey key;
1431         get_patch_key_at(program.event_time(), program.channel(), key);
1432
1433         boost::shared_ptr<MIDI::Name::Patch> patch =
1434                 MIDI::Name::MidiPatchManager::instance().previous_patch(
1435                                 _model_name,
1436                                 _custom_device_mode,
1437                                 program.channel(),
1438                                 key);
1439
1440         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1441         if (patch) {
1442                 alter_program_change(program_change_event, patch->patch_primary_key());
1443         }
1444 }
1445
1446 void
1447 MidiRegionView::next_program(CanvasProgramChange& program)
1448 {
1449         MIDI::Name::PatchPrimaryKey key;
1450         get_patch_key_at(program.event_time(), program.channel(), key);
1451
1452         boost::shared_ptr<MIDI::Name::Patch> patch =
1453                 MIDI::Name::MidiPatchManager::instance().next_patch(
1454                                 _model_name,
1455                                 _custom_device_mode,
1456                                 program.channel(),
1457                                 key);
1458
1459         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1460         if (patch) {
1461                 alter_program_change(program_change_event, patch->patch_primary_key());
1462         }
1463 }
1464
1465 void
1466 MidiRegionView::delete_selection()
1467 {
1468         if (_selection.empty()) {
1469                 return;
1470         }
1471
1472         start_delta_command (_("delete selection"));
1473
1474         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1475                 if ((*i)->selected()) {
1476                         _delta_command->remove((*i)->note());
1477                 }
1478         }
1479
1480         _selection.clear();
1481
1482         apply_delta ();
1483 }
1484
1485 void
1486 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev)
1487 {
1488         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1489                 if ((*i)->selected() && (*i) != ev) {
1490                         (*i)->selected(false);
1491                         (*i)->hide_velocity();
1492                 }
1493         }
1494
1495         _selection.clear();
1496 }
1497
1498 void
1499 MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
1500 {
1501         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
1502                 if ((*i) != ev) {
1503
1504                         Selection::iterator tmp = i;
1505                         ++tmp;
1506
1507                         (*i)->selected (false);
1508                         _selection.erase (i);
1509
1510                         i = tmp;
1511
1512                 } else {
1513                         ++i;
1514                 }
1515         }
1516
1517         /* don't bother with removing this regionview from the editor selection,
1518            since we're about to add another note, and thus put/keep this
1519            regionview in the editor selection.
1520         */
1521
1522         if (!ev->selected()) {
1523                 add_to_selection (ev);
1524         }
1525 }
1526
1527 void
1528 MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
1529 {
1530         if (!add) {
1531                 clear_selection_except(ev);
1532         }
1533
1534         if (!extend) {
1535
1536                 if (!ev->selected()) {
1537                         add_to_selection (ev);
1538                 }
1539
1540         } else {
1541                 /* find end of latest note selected, select all between that and the start of "ev" */
1542
1543                 Evoral::MusicalTime earliest = DBL_MAX;
1544                 Evoral::MusicalTime latest = 0;
1545
1546                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1547                         if ((*i)->note()->end_time() > latest) {
1548                                 latest = (*i)->note()->end_time();
1549                         }
1550                         if ((*i)->note()->time() < earliest) {
1551                                 earliest = (*i)->note()->time();
1552                         }
1553                 }
1554
1555                 if (ev->note()->end_time() > latest) {
1556                         latest = ev->note()->end_time();
1557                 }
1558
1559                 if (ev->note()->time() < earliest) {
1560                         earliest = ev->note()->time();
1561                 }
1562
1563                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1564
1565                         /* find notes entirely within OR spanning the earliest..latest range */
1566
1567                         if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
1568                             ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
1569                                 add_to_selection (*i);
1570                         }
1571
1572 #if 0
1573                         /* if events were guaranteed to be time sorted, we could do this.
1574                            but as of sept 10th 2009, they no longer are.
1575                         */
1576
1577                         if ((*i)->note()->time() > latest) {
1578                                 break;
1579                         }
1580 #endif
1581                 }
1582         }
1583 }
1584
1585 void
1586 MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev)
1587 {
1588         remove_from_selection (ev);
1589 }
1590
1591 void
1592 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
1593 {
1594         if (x1 > x2) {
1595                 swap (x1, x2);
1596         }
1597
1598         if (y1 > y2) {
1599                 swap (y1, y2);
1600         }
1601
1602         // TODO: Make this faster by storing the last updated selection rect, and only
1603         // adjusting things that are in the area that appears/disappeared.
1604         // We probably need a tree to be able to find events in O(log(n)) time.
1605
1606         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1607
1608                 /* check if any corner of the note is inside the rect
1609
1610                    Notes:
1611                      1) this is computing "touched by", not "contained by" the rect.
1612                      2) this does not require that events be sorted in time.
1613                  */
1614
1615                 const double ix1 = (*i)->x1();
1616                 const double ix2 = (*i)->x2();
1617                 const double iy1 = (*i)->y1();
1618                 const double iy2 = (*i)->y2();
1619
1620                 if ((ix1 >= x1 && ix1 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1621                     (ix1 >= x1 && ix1 <= x2 && iy2 >= y1 && iy2 <= y2) ||
1622                     (ix2 >= x1 && ix2 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1623                     (ix2 >= x1 && ix2 <= x2 && iy2 >= y1 && iy2 <= y2)) {
1624
1625                         // Inside rectangle
1626                         if (!(*i)->selected()) {
1627                                 add_to_selection (*i);
1628                         }
1629                 } else if ((*i)->selected()) {
1630                         // Not inside rectangle
1631                         remove_from_selection (*i);
1632                 }
1633         }
1634 }
1635
1636 void
1637 MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
1638 {
1639         Selection::iterator i = _selection.find (ev);
1640
1641         if (i != _selection.end()) {
1642                 _selection.erase (i);
1643         }
1644
1645         ev->selected (false);
1646         ev->hide_velocity ();
1647
1648         if (_selection.empty()) {
1649                 PublicEditor& editor (trackview.editor());
1650                 editor.get_selection().remove (this);
1651         }
1652 }
1653
1654 void
1655 MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
1656 {
1657         bool add_mrv_selection = false;
1658
1659         if (_selection.empty()) {
1660                 add_mrv_selection = true;
1661         }
1662
1663         if (_selection.insert (ev).second) {
1664                 ev->selected (true);
1665                 play_midi_note ((ev)->note());
1666         }
1667
1668         if (add_mrv_selection) {
1669                 PublicEditor& editor (trackview.editor());
1670                 editor.get_selection().add (this);
1671         }
1672 }
1673
1674 void
1675 MidiRegionView::move_selection(double dx, double dy)
1676 {
1677         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1678                 (*i)->move_event(dx, dy);
1679         }
1680 }
1681
1682 void
1683 MidiRegionView::note_dropped(CanvasNoteEvent* ev, double dt, uint8_t dnote)
1684 {
1685         // TODO: This would be faster/nicer with a MoveCommand that doesn't need to copy...
1686         if (_selection.find(ev) == _selection.end()) {
1687                 return;
1688         }
1689
1690         uint8_t lowest_note_in_selection  = midi_stream_view()->lowest_note();
1691         uint8_t highest_note_in_selection = midi_stream_view()->highest_note();
1692         uint8_t highest_note_difference = 0;
1693
1694         // find highest and lowest notes first
1695         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1696                 uint8_t pitch = (*i)->note()->note();
1697                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
1698                 highest_note_in_selection = std::max(highest_note_in_selection, pitch);
1699         }
1700
1701         /*
1702         cerr << "dnote: " << (int) dnote << endl;
1703         cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
1704              << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
1705         cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
1706              << int(highest_note_in_selection) << endl;
1707         cerr << "selection size: " << _selection.size() << endl;
1708         cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
1709         */
1710
1711         // Make sure the note pitch does not exceed the MIDI standard range
1712         if (dnote <= 127 && (highest_note_in_selection + dnote > 127)) {
1713                 highest_note_difference = highest_note_in_selection - 127;
1714         }
1715
1716         start_diff_command(_("move notes"));
1717
1718         for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
1719
1720                 nframes64_t start_frames = beats_to_frames((*i)->note()->time());
1721
1722                 if (dt >= 0) {
1723                         start_frames += snap_frame_to_frame(trackview.editor().pixel_to_frame(dt));
1724                 } else {
1725                         start_frames -= snap_frame_to_frame(trackview.editor().pixel_to_frame(-dt));
1726                 }
1727
1728                 Evoral::MusicalTime new_time = frames_to_beats(start_frames);
1729
1730                 if (new_time < 0) {
1731                         continue;
1732                 }
1733
1734                 diff_add_change (*i, MidiModel::DiffCommand::StartTime, new_time);
1735
1736                 uint8_t original_pitch = (*i)->note()->note();
1737                 uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
1738
1739                 // keep notes in standard midi range
1740                 clamp_to_0_127(new_pitch);
1741
1742                 // keep original pitch if note is dragged outside valid midi range
1743                 if ((original_pitch != 0 && new_pitch == 0)
1744                                 || (original_pitch != 127 && new_pitch == 127)) {
1745                         new_pitch = original_pitch;
1746                 }
1747
1748                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
1749                 highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
1750
1751                 diff_add_change (*i, MidiModel::DiffCommand::NoteNumber, new_pitch);
1752         }
1753
1754         apply_diff();
1755
1756         // care about notes being moved beyond the upper/lower bounds on the canvas
1757         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
1758                         highest_note_in_selection > midi_stream_view()->highest_note()) {
1759                 midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
1760         }
1761 }
1762
1763 nframes64_t
1764 MidiRegionView::snap_pixel_to_frame(double x)
1765 {
1766         PublicEditor& editor = trackview.editor();
1767         // x is region relative, convert it to global absolute frames
1768         nframes64_t frame = editor.pixel_to_frame(x) + _region->position();
1769         editor.snap_to(frame);
1770         return frame - _region->position(); // convert back to region relative
1771 }
1772
1773 nframes64_t
1774 MidiRegionView::snap_frame_to_frame(nframes64_t x)
1775 {
1776         PublicEditor& editor = trackview.editor();
1777         // x is region relative, convert it to global absolute frames
1778         nframes64_t frame = x + _region->position();
1779         editor.snap_to(frame);
1780         return frame - _region->position(); // convert back to region relative
1781 }
1782
1783 double
1784 MidiRegionView::snap_to_pixel(double x)
1785 {
1786         return (double) trackview.editor().frame_to_pixel(snap_pixel_to_frame(x));
1787 }
1788
1789 double
1790 MidiRegionView::get_position_pixels()
1791 {
1792         nframes64_t region_frame = get_position();
1793         return trackview.editor().frame_to_pixel(region_frame);
1794 }
1795
1796 double
1797 MidiRegionView::get_end_position_pixels()
1798 {
1799         nframes64_t frame = get_position() + get_duration ();
1800         return trackview.editor().frame_to_pixel(frame);
1801 }
1802
1803 nframes64_t
1804 MidiRegionView::beats_to_frames(double beats) const
1805 {
1806         return _time_converter.to(beats);
1807 }
1808
1809 double
1810 MidiRegionView::frames_to_beats(nframes64_t frames) const
1811 {
1812         return _time_converter.from(frames);
1813 }
1814
1815 void
1816 MidiRegionView::begin_resizing (bool /*at_front*/)
1817 {
1818         _resize_data.clear();
1819
1820         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1821                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
1822
1823                 // only insert CanvasNotes into the map
1824                 if (note) {
1825                         NoteResizeData *resize_data = new NoteResizeData();
1826                         resize_data->canvas_note = note;
1827
1828                         // create a new SimpleRect from the note which will be the resize preview
1829                         SimpleRect *resize_rect = new SimpleRect(
1830                                         *group, note->x1(), note->y1(), note->x2(), note->y2());
1831
1832                         // calculate the colors: get the color settings
1833                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
1834                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(),
1835                                         128);
1836
1837                         // make the resize preview notes more transparent and bright
1838                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
1839
1840                         // calculate color based on note velocity
1841                         resize_rect->property_fill_color_rgba() = UINT_INTERPOLATE(
1842                                         CanvasNoteEvent::meter_style_fill_color(note->note()->velocity()),
1843                                         fill_color,
1844                                         0.85);
1845
1846                         resize_rect->property_outline_color_rgba() = CanvasNoteEvent::calculate_outline(
1847                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get());
1848
1849                         resize_data->resize_rect = resize_rect;
1850                         _resize_data.push_back(resize_data);
1851                 }
1852         }
1853 }
1854
1855 void
1856 MidiRegionView::update_resizing (bool at_front, double delta_x, bool relative)
1857 {
1858         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1859                 SimpleRect* resize_rect = (*i)->resize_rect;
1860                 CanvasNote* canvas_note = (*i)->canvas_note;
1861                 double current_x;
1862
1863                 if (at_front) {
1864                         if (relative) {
1865                                 current_x = canvas_note->x1() + delta_x;
1866                         } else {
1867                                 // x is in track relative, transform it to region relative
1868                                 current_x = delta_x - get_position_pixels();
1869                         }
1870                 } else {
1871                         if (relative) {
1872                                 current_x = canvas_note->x2() + delta_x;
1873                         } else {
1874                                 // x is in track relative, transform it to region relative
1875                                 current_x = delta_x - get_end_position_pixels ();
1876                         }
1877                 }
1878
1879                 if (at_front) {
1880                         resize_rect->property_x1() = snap_to_pixel(current_x);
1881                         resize_rect->property_x2() = canvas_note->x2();
1882                 } else {
1883                         resize_rect->property_x2() = snap_to_pixel(current_x);
1884                         resize_rect->property_x1() = canvas_note->x1();
1885                 }
1886         }
1887 }
1888
1889 void
1890 MidiRegionView::commit_resizing (bool at_front, double delta_x, bool relative)
1891 {
1892         start_diff_command(_("resize notes"));
1893
1894         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1895                 CanvasNote*  canvas_note = (*i)->canvas_note;
1896                 SimpleRect*  resize_rect = (*i)->resize_rect;
1897                 const double region_start = get_position_pixels();
1898                 double current_x;
1899
1900                 if (at_front) {
1901                         if (relative) {
1902                                 current_x = canvas_note->x1() + delta_x;
1903                         } else {
1904                                 // x is in track relative, transform it to region relative
1905                                 current_x = region_start + delta_x;
1906                         }
1907                 } else {
1908                         if (relative) {
1909                                 current_x = canvas_note->x2() + delta_x;
1910                         } else {
1911                                 // x is in track relative, transform it to region relative
1912                                 current_x = region_start + delta_x;
1913                         }
1914                 }
1915
1916                 current_x = snap_pixel_to_frame (current_x);
1917                 current_x = frames_to_beats (current_x);
1918
1919                 if (at_front && current_x < canvas_note->note()->end_time()) {
1920                         diff_add_change (canvas_note, MidiModel::DiffCommand::StartTime, current_x);
1921                 }
1922
1923                 if (!at_front) {
1924                         double len = current_x - canvas_note->note()->time();
1925
1926                         if (len > 0) {
1927                                 /* XXX convert to beats */
1928                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
1929                         }
1930                 }
1931
1932                 delete resize_rect;
1933                 delete (*i);
1934         }
1935
1936         _resize_data.clear();
1937         apply_diff();
1938 }
1939
1940 void
1941 MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bool relative)
1942 {
1943         uint8_t new_velocity;
1944
1945         if (relative) {
1946                 new_velocity = event->note()->velocity() + velocity;
1947                 clamp_to_0_127(new_velocity);
1948         } else {
1949                 new_velocity = velocity;
1950         }
1951
1952         diff_add_change (event, MidiModel::DiffCommand::Velocity, new_velocity);
1953 }
1954
1955 void
1956 MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool relative)
1957 {
1958         uint8_t new_note;
1959
1960         if (relative) {
1961                 new_note = event->note()->note() + note;
1962         } else {
1963                 new_note = note;
1964         }
1965
1966         clamp_to_0_127 (new_note);
1967         diff_add_change (event, MidiModel::DiffCommand::NoteNumber, new_note);
1968 }
1969
1970 void
1971 MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
1972 {
1973         bool change_start = false;
1974         bool change_length = false;
1975         Evoral::MusicalTime new_start;
1976         Evoral::MusicalTime new_length;
1977
1978         /* NOTE: the semantics of the two delta arguments are slightly subtle:
1979
1980            front_delta: if positive - move the start of the note later in time (shortening it)
1981                         if negative - move the start of the note earlier in time (lengthening it)
1982
1983            end_delta:   if positive - move the end of the note later in time (lengthening it)
1984                         if negative - move the end of the note earlier in time (shortening it)
1985          */
1986
1987         if (front_delta) {
1988                 if (front_delta < 0) {
1989
1990                         if (event->note()->time() < -front_delta) {
1991                                 new_start = 0;
1992                         } else {
1993                                 new_start = event->note()->time() + front_delta; // moves earlier
1994                         }
1995
1996                         /* start moved toward zero, so move the end point out to where it used to be.
1997                            Note that front_delta is negative, so this increases the length.
1998                         */
1999
2000                         new_length = event->note()->length() - front_delta;
2001                         change_start = true;
2002                         change_length = true;
2003
2004                 } else {
2005
2006                         Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
2007
2008                         if (new_pos < event->note()->end_time()) {
2009                                 new_start = event->note()->time() + front_delta;
2010                                 /* start moved toward the end, so move the end point back to where it used to be */
2011                                 new_length = event->note()->length() - front_delta;
2012                                 change_start = true;
2013                                 change_length = true;
2014                         }
2015                 }
2016
2017         }
2018
2019         if (end_delta) {
2020                 bool can_change = true;
2021                 if (end_delta < 0) {
2022                         if (event->note()->length() < -end_delta) {
2023                                 can_change = false;
2024                         }
2025                 }
2026
2027                 if (can_change) {
2028                         new_length = event->note()->length() + end_delta;
2029                         change_length = true;
2030                 }
2031         }
2032
2033         if (change_start) {
2034                 diff_add_change (event, MidiModel::DiffCommand::StartTime, new_start);
2035         }
2036
2037         if (change_length) {
2038                 diff_add_change (event, MidiModel::DiffCommand::Length, new_length);
2039         }
2040 }
2041
2042 void
2043 MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime delta, bool relative)
2044 {
2045         Evoral::MusicalTime new_time;
2046
2047         if (relative) {
2048                 if (delta < 0.0) {
2049                         if (event->note()->time() < -delta) {
2050                                 new_time = 0;
2051                         } else {
2052                                 new_time = event->note()->time() + delta;
2053                         }
2054                 } else {
2055                         new_time = event->note()->time() + delta;
2056                 }
2057         } else {
2058                 new_time = delta;
2059         }
2060
2061         diff_add_change (event, MidiModel::DiffCommand::StartTime, new_time);
2062 }
2063
2064 void
2065 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
2066 {
2067         int8_t delta;
2068
2069         if (_selection.empty()) {
2070                 return;
2071         }
2072
2073         if (fine) {
2074                 delta = 1;
2075         } else {
2076                 delta = 10;
2077         }
2078
2079         if (!up) {
2080                 delta = -delta;
2081         }
2082
2083         if (!allow_smush) {
2084                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2085                         if ((*i)->note()->velocity() + delta == 0 || (*i)->note()->velocity() + delta == 127) {
2086                                 return;
2087                         }
2088                 }
2089         }
2090
2091         start_diff_command(_("change velocities"));
2092
2093         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
2094                 Selection::iterator next = i;
2095                 ++next;
2096                 change_note_velocity (*i, delta, true);
2097                 i = next;
2098         }
2099
2100         apply_diff();
2101 }
2102
2103
2104 void
2105 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
2106 {
2107         if (_selection.empty()) {
2108                 return;
2109         }
2110
2111         int8_t delta;
2112
2113         if (fine) {
2114                 delta = 1;
2115         } else {
2116                 delta = 12;
2117         }
2118
2119         if (!up) {
2120                 delta = -delta;
2121         }
2122
2123         if (!allow_smush) {
2124                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2125                         if (!up) {
2126                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
2127                                         return;
2128                                 }
2129                         } else {
2130                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
2131                                         return;
2132                                 }
2133                         }
2134                 }
2135         }
2136
2137         start_diff_command (_("transpose"));
2138
2139         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2140                 Selection::iterator next = i;
2141                 ++next;
2142                 change_note_note (*i, delta, true);
2143                 i = next;
2144         }
2145
2146         apply_diff ();
2147 }
2148
2149 void
2150 MidiRegionView::change_note_lengths (bool fine, bool shorter, bool start, bool end)
2151 {
2152         Evoral::MusicalTime delta;
2153
2154         if (fine) {
2155                 delta = 1.0/128.0;
2156         } else {
2157                 /* grab the current grid distance */
2158                 bool success;
2159                 delta = trackview.editor().get_grid_type_as_beats (success, _region->position());
2160                 if (!success) {
2161                         /* XXX cannot get grid type as beats ... should always be possible ... FIX ME */
2162                         cerr << "Grid type not available as beats - TO BE FIXED\n";
2163                         return;
2164                 }
2165         }
2166
2167         if (shorter) {
2168                 delta = -delta;
2169         }
2170
2171         start_diff_command (_("change note lengths"));
2172
2173         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2174                 Selection::iterator next = i;
2175                 ++next;
2176
2177                 /* note the negation of the delta for start */
2178
2179                 trim_note (*i, (start ? -delta : 0), (end ? delta : 0));
2180                 i = next;
2181         }
2182
2183         apply_diff ();
2184
2185 }
2186
2187 void
2188 MidiRegionView::nudge_notes (bool forward)
2189 {
2190         if (_selection.empty()) {
2191                 return;
2192         }
2193
2194         /* pick a note as the point along the timeline to get the nudge distance.
2195            its not necessarily the earliest note, so we may want to pull the notes out
2196            into a vector and sort before using the first one.
2197         */
2198
2199         nframes64_t ref_point = _region->position() + beats_to_frames ((*(_selection.begin()))->note()->time());
2200         nframes64_t unused;
2201         nframes64_t distance;
2202
2203         if ((distance = trackview.editor().get_nudge_distance (ref_point, unused)) == 0) {
2204
2205                 /* no nudge distance set - use grid */
2206
2207                 nframes64_t next_pos = ref_point;
2208
2209                 if (forward) {
2210                         /* XXX need check on max_frames, but that needs max_frames64 or something */
2211                         next_pos += 1;
2212                 } else {
2213                         if (next_pos == 0) {
2214                                 return;
2215                         }
2216                         next_pos -= 1;
2217                 }
2218
2219                 cerr << "ref point was " << ref_point << " next was " << next_pos;
2220                 trackview.editor().snap_to (next_pos, (forward ? 1 : -1), false);
2221                 distance = ref_point - next_pos;
2222                 cerr << " final is " << next_pos << " distance = " << distance << endl;
2223         }
2224
2225         if (distance == 0) {
2226                 return;
2227         }
2228
2229         Evoral::MusicalTime delta = frames_to_beats (fabs (distance));
2230
2231         if (!forward) {
2232                 delta = -delta;
2233         }
2234
2235         start_diff_command (_("nudge"));
2236
2237         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2238                 Selection::iterator next = i;
2239                 ++next;
2240                 change_note_time (*i, delta, true);
2241                 i = next;
2242         }
2243
2244         apply_diff ();
2245 }
2246
2247 void
2248 MidiRegionView::change_channel(uint8_t channel)
2249 {
2250         start_diff_command(_("change channel"));
2251         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2252                 diff_add_change (*i, MidiModel::DiffCommand::Channel, channel);
2253         }
2254         apply_diff();
2255 }
2256
2257
2258 void
2259 MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
2260 {
2261         if (_mouse_state == SelectTouchDragging) {
2262                 note_selected(ev, true);
2263         }
2264
2265         PublicEditor& editor (trackview.editor());
2266         editor.show_verbose_canvas_cursor_with (Evoral::midi_note_name (ev->note()->note()));
2267 }
2268
2269 void
2270 MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
2271 {
2272         PublicEditor& editor (trackview.editor());
2273         editor.hide_verbose_canvas_cursor ();
2274 }
2275
2276
2277 void
2278 MidiRegionView::switch_source(boost::shared_ptr<Source> src)
2279 {
2280         boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
2281         if (msrc)
2282                 display_model(msrc->model());
2283 }
2284
2285 void
2286 MidiRegionView::set_frame_color()
2287 {
2288         if (frame) {
2289                 if (_selected && should_show_selection) {
2290                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
2291                 } else {
2292                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
2293                 }
2294         }
2295 }
2296
2297 void
2298 MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
2299 {
2300         switch (mode) {
2301         case AllChannels:
2302         case FilterChannels:
2303                 _force_channel = -1;
2304                 break;
2305         case ForceChannel:
2306                 _force_channel = mask;
2307                 mask = 0xFFFF; // Show all notes as active (below)
2308         };
2309
2310         // Update notes for selection
2311         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2312                 (*i)->on_channel_selection_change(mask);
2313         }
2314
2315         _last_channel_selection = mask;
2316 }
2317
2318 void
2319 MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
2320 {
2321         _model_name         = model;
2322         _custom_device_mode = custom_device_mode;
2323         redisplay_model();
2324 }
2325
2326 void
2327 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
2328 {
2329         if (_selection.empty()) {
2330                 return;
2331         }
2332
2333         PublicEditor& editor (trackview.editor());
2334
2335         switch (op) {
2336         case Cut:
2337         case Copy:
2338                 editor.get_cut_buffer().add (selection_as_cut_buffer());
2339                 break;
2340         default:
2341                 break;
2342         }
2343
2344         start_delta_command();
2345
2346         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2347                 switch (op) {
2348                 case Copy:
2349                         break;
2350                 case Cut:
2351                         delta_remove_note (*i);
2352                         break;
2353                 case Clear:
2354                         break;
2355                 }
2356         }
2357
2358         apply_delta();
2359 }
2360
2361 MidiCutBuffer*
2362 MidiRegionView::selection_as_cut_buffer () const
2363 {
2364         NoteList notes;
2365
2366         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2367                 notes.push_back (boost::shared_ptr<NoteType> (new NoteType (*((*i)->note().get()))));
2368         }
2369
2370         /* sort them into time order */
2371
2372         Evoral::Sequence<Evoral::MusicalTime>::LaterNoteComparator cmp;
2373         sort (notes.begin(), notes.end(),  cmp);
2374
2375         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
2376         cb->set (notes);
2377
2378         return cb;
2379 }
2380
2381 void
2382 MidiRegionView::paste (nframes64_t pos, float times, const MidiCutBuffer& mcb)
2383 {
2384         if (mcb.empty()) {
2385                 return;
2386         }
2387
2388         start_delta_command (_("paste"));
2389
2390         Evoral::MusicalTime beat_delta;
2391         Evoral::MusicalTime paste_pos_beats;
2392         Evoral::MusicalTime duration;
2393         Evoral::MusicalTime end_point;
2394
2395         duration = mcb.notes().back()->end_time() - mcb.notes().front()->time();
2396         paste_pos_beats = frames_to_beats (pos - _region->position());
2397         beat_delta = mcb.notes().front()->time() - paste_pos_beats;
2398         paste_pos_beats = 0;
2399
2400         _selection.clear ();
2401
2402         for (int n = 0; n < (int) times; ++n) {
2403
2404                 for (NoteList::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
2405
2406                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
2407                         copied_note->set_time (paste_pos_beats + copied_note->time() - beat_delta);
2408
2409                         /* make all newly added notes selected */
2410
2411                         delta_add_note (copied_note, true);
2412                         end_point = copied_note->end_time();
2413                 }
2414
2415                 paste_pos_beats += duration;
2416         }
2417
2418         /* if we pasted past the current end of the region, extend the region */
2419
2420         nframes64_t end_frame = _region->position() + beats_to_frames (end_point);
2421         nframes64_t region_end = _region->position() + _region->length() - 1;
2422
2423         if (end_frame > region_end) {
2424
2425                 trackview.session().begin_reversible_command (_("paste"));
2426
2427                 XMLNode& before (_region->get_state());
2428                 _region->set_length (end_frame, this);
2429                 trackview.session().add_command (new MementoCommand<Region>(*_region, &before, &_region->get_state()));
2430         }
2431
2432         apply_delta ();
2433 }
2434
2435 struct EventNoteTimeEarlyFirstComparator {
2436     bool operator() (CanvasNoteEvent* a, CanvasNoteEvent* b) {
2437             return a->note()->time() < b->note()->time();
2438     }
2439 };
2440
2441 void
2442 MidiRegionView::time_sort_events ()
2443 {
2444         if (!_sort_needed) {
2445                 return;
2446         }
2447
2448         EventNoteTimeEarlyFirstComparator cmp;
2449         _events.sort (cmp);
2450
2451         _sort_needed = false;
2452 }
2453
2454 void
2455 MidiRegionView::goto_next_note ()
2456 {
2457         // nframes64_t pos = -1;
2458         bool use_next = false;
2459
2460         if (_events.back()->selected()) {
2461                 return;
2462         }
2463
2464         time_sort_events ();
2465
2466         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2467                 if ((*i)->selected()) {
2468                         use_next = true;
2469                         continue;
2470                 } else if (use_next) {
2471                         unique_select (*i);
2472                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2473                         return;
2474                 }
2475         }
2476
2477         /* use the first one */
2478
2479         unique_select (_events.front());
2480
2481 }
2482
2483 void
2484 MidiRegionView::goto_previous_note ()
2485 {
2486         // nframes64_t pos = -1;
2487         bool use_next = false;
2488
2489         if (_events.front()->selected()) {
2490                 return;
2491         }
2492
2493         time_sort_events ();
2494
2495         for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
2496                 if ((*i)->selected()) {
2497                         use_next = true;
2498                         continue;
2499                 } else if (use_next) {
2500                         unique_select (*i);
2501                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2502                         return;
2503                 }
2504         }
2505
2506         /* use the last one */
2507
2508         unique_select (*(_events.rbegin()));
2509 }
2510
2511 void
2512 MidiRegionView::selection_as_notelist (NoteList& selected)
2513 {
2514         time_sort_events ();
2515
2516         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2517                 if ((*i)->selected()) {
2518                         selected.push_back ((*i)->note());
2519                 }
2520         }
2521 }
2522
2523