gtk2_ardour/region_view.cc

   1 /*
   2     Copyright (C) 2001-2006 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <cmath>
  21 #include <cassert>
  22 #include <algorithm>
  23
  24 #include <gtkmm.h>
  25
  26 #include <gtkmm2ext/gtk_ui.h>
  27 #include "pbd/stacktrace.h"
  28
  29 #include "ardour/playlist.h"
  30 #include "ardour/audioregion.h"
  31 #include "ardour/audiosource.h"
  32 #include "ardour/audio_diskstream.h"
  33 #include "ardour/session.h"
  34
  35 #include "ardour_ui.h"
  36 #include "streamview.h"
  37 #include "region_view.h"
  38 #include "automation_region_view.h"
  39 #include "route_time_axis.h"
  40 #include "simplerect.h"
  41 #include "simpleline.h"
  42 #include "waveview.h"
  43 #include "public_editor.h"
  44 #include "region_editor.h"
  45 #include "ghostregion.h"
  46 #include "route_time_axis.h"
  47 #include "utils.h"
  48 #include "rgb_macros.h"
  49 #include "gui_thread.h"
  50
  51 #include "i18n.h"
  52
  53 using namespace std;
  54 using namespace ARDOUR;
  55 using namespace PBD;
  56 using namespace Editing;
  57 using namespace ArdourCanvas;
  58
  59 static const int32_t sync_mark_width = 9;
  60
  61 PBD::Signal1<void,RegionView*> RegionView::RegionViewGoingAway;
  62
  63 RegionView::RegionView (ArdourCanvas::Group*              parent,
  64                         TimeAxisView&                     tv,
  65                         boost::shared_ptr<ARDOUR::Region> r,
  66                         double                            spu,
  67                         Gdk::Color const &                basic_color)
  68         : TimeAxisViewItem (r->name(), *parent, tv, spu, basic_color, r->position(), r->length(), false,
  69                             TimeAxisViewItem::Visibility (TimeAxisViewItem::ShowNameText|
  70                                                           TimeAxisViewItem::ShowNameHighlight| TimeAxisViewItem::ShowFrame))
  71         , _region (r)
  72         , sync_mark(0)
  73         , sync_line(0)
  74         , editor(0)
  75         , current_visible_sync_position(0.0)
  76         , valid(false)
  77         , _enable_display(false)
  78         , _pixel_width(1.0)
  79         , in_destructor(false)
  80         , wait_for_data(false)
  81         , _time_converter(r->session().tempo_map(), r->position())
  82 {
  83         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
  84 }
  85
  86 RegionView::RegionView (const RegionView& other)
  87         : sigc::trackable(other)
  88         , TimeAxisViewItem (other)
  89         , _time_converter(other._time_converter)
  90 {
  91         /* derived concrete type will call init () */
  92
  93         _region = other._region;
  94         current_visible_sync_position = other.current_visible_sync_position;
  95         valid = false;
  96         _pixel_width = other._pixel_width;
  97
  98         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
  99 }
 100
 101 RegionView::RegionView (const RegionView& other, boost::shared_ptr<Region> other_region)
 102         : sigc::trackable(other)
 103         , TimeAxisViewItem (other)
 104         , _time_converter(other._time_converter)
 105 {
 106         /* this is a pseudo-copy constructor used when dragging regions
 107            around on the canvas.
 108         */
 109
 110         /* derived concrete type will call init () */
 111
 112         _region = other_region;
 113         current_visible_sync_position = other.current_visible_sync_position;
 114         valid = false;
 115         _pixel_width = other._pixel_width;
 116
 117         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
 118 }
 119
 120 RegionView::RegionView (ArdourCanvas::Group*         parent,
 121                         TimeAxisView&                tv,
 122                         boost::shared_ptr<ARDOUR::Region> r,
 123                         double                       spu,
 124                         Gdk::Color const &           basic_color,
 125                                                 bool recording,
 126                         TimeAxisViewItem::Visibility visibility)
 127         : TimeAxisViewItem (r->name(), *parent, tv, spu, basic_color, r->position(), r->length(), recording, visibility)
 128         , _region (r)
 129         , sync_mark(0)
 130         , sync_line(0)
 131         , editor(0)
 132         , current_visible_sync_position(0.0)
 133         , valid(false)
 134         , _enable_display(false)
 135         , _pixel_width(1.0)
 136         , in_destructor(false)
 137         , wait_for_data(false)
 138         , _time_converter(r->session().tempo_map(), r->position())
 139 {
 140 }
 141
 142 void
 143 RegionView::init (Gdk::Color const & basic_color, bool wfd)
 144 {
 145         editor        = 0;
 146         valid         = true;
 147         in_destructor = false;
 148         wait_for_data = wfd;
 149         sync_mark     = 0;
 150         sync_line     = 0;
 151         sync_mark     = 0;
 152         sync_line     = 0;
 153
 154         compute_colors (basic_color);
 155
 156         if (name_highlight) {
 157                 name_highlight->set_data ("regionview", this);
 158                 name_highlight->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_highlight_event), name_highlight, this));
 159
 160                 frame_handle_start->set_data ("regionview", this);
 161                 frame_handle_start->set_data ("isleft", (void*) 1);
 162                 frame_handle_start->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_frame_handle_event), frame_handle_start, this));
 163
 164                 frame_handle_end->set_data ("regionview", this);
 165                 frame_handle_end->set_data ("isleft", (void*) 0);
 166                 frame_handle_end->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_frame_handle_event), frame_handle_end, this));
 167
 168                 frame_handle_start->raise_to_top();
 169                 frame_handle_end->raise_to_top();
 170         }
 171
 172         if (name_pixbuf) {
 173                 name_pixbuf->set_data ("regionview", this);
 174                 name_pixbuf->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_event), name_pixbuf, this));
 175         }
 176
 177         if (wfd) {
 178                 _enable_display = true;
 179         }
 180
 181         set_height (trackview.current_height());
 182
 183         _region->PropertyChanged.connect (*this, invalidator (*this), ui_bind (&RegionView::region_changed, this, _1), gui_context());
 184
 185         group->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_event), group, this));
 186
 187         set_colors ();
 188
 189         ColorsChanged.connect (sigc::mem_fun (*this, &RegionView::color_handler));
 190
 191         /* XXX sync mark drag? */
 192 }
 193
 194 RegionView::~RegionView ()
 195 {
 196         in_destructor = true;
 197
 198         for (vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 199                 delete *g;
 200         }
 201
 202         for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin (); i != _coverage_frames.end (); ++i) {
 203                 delete *i;
 204         }
 205
 206         delete editor;
 207 }
 208
 209 gint
 210 RegionView::_lock_toggle (ArdourCanvas::Item*, GdkEvent* ev, void* arg)
 211 {
 212         switch (ev->type) {
 213         case GDK_BUTTON_RELEASE:
 214                 static_cast<RegionView*>(arg)->lock_toggle ();
 215                 return TRUE;
 216                 break;
 217         default:
 218                 break;
 219         }
 220         return FALSE;
 221 }
 222
 223 void
 224 RegionView::lock_toggle ()
 225 {
 226         _region->set_locked (!_region->locked());
 227 }
 228
 229 void
 230 RegionView::region_changed (const PropertyChange& what_changed)
 231 {
 232         ENSURE_GUI_THREAD (*this, &RegionView::region_changed, what_changed);
 233
 234         if (what_changed.contains (ARDOUR::bounds_change)) {
 235                 region_resized (what_changed);
 236                 region_sync_changed ();
 237         }
 238         if (what_changed.contains (ARDOUR::Properties::muted)) {
 239                 region_muted ();
 240         }
 241         if (what_changed.contains (ARDOUR::Properties::opaque)) {
 242                 region_opacity ();
 243         }
 244         if (what_changed.contains (ARDOUR::Properties::name)) {
 245                 region_renamed ();
 246         }
 247         if (what_changed.contains (ARDOUR::Properties::sync_position)) {
 248                 region_sync_changed ();
 249         }
 250         if (what_changed.contains (ARDOUR::Properties::locked)) {
 251                 region_locked ();
 252         }
 253 }
 254
 255 void
 256 RegionView::region_locked ()
 257 {
 258         /* name will show locked status */
 259         region_renamed ();
 260 }
 261
 262 void
 263 RegionView::region_resized (const PropertyChange& what_changed)
 264 {
 265         double unit_length;
 266
 267         if (what_changed.contains (ARDOUR::Properties::position)) {
 268                 set_position (_region->position(), 0);
 269                 _time_converter.set_origin(_region->position());
 270         }
 271
 272         PropertyChange s_and_l;
 273         s_and_l.add (ARDOUR::Properties::start);
 274         s_and_l.add (ARDOUR::Properties::length);
 275
 276         if (what_changed.contains (s_and_l)) {
 277
 278                 set_duration (_region->length(), 0);
 279
 280                 unit_length = _region->length() / samples_per_unit;
 281
 282                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 283
 284                         (*i)->set_duration (unit_length);
 285
 286                 }
 287         }
 288 }
 289
 290 void
 291 RegionView::reset_width_dependent_items (double pixel_width)
 292 {
 293         TimeAxisViewItem::reset_width_dependent_items (pixel_width);
 294         _pixel_width = pixel_width;
 295 }
 296
 297 void
 298 RegionView::region_muted ()
 299 {
 300         set_frame_color ();
 301         region_renamed ();
 302 }
 303
 304 void
 305 RegionView::region_opacity ()
 306 {
 307         set_frame_color ();
 308 }
 309
 310 void
 311 RegionView::raise_to_top ()
 312 {
 313         _region->raise_to_top ();
 314 }
 315
 316 void
 317 RegionView::lower_to_bottom ()
 318 {
 319         _region->lower_to_bottom ();
 320 }
 321
 322 bool
 323 RegionView::set_position (nframes64_t pos, void* /*src*/, double* ignored)
 324 {
 325         double delta;
 326         bool ret;
 327
 328         if (!(ret = TimeAxisViewItem::set_position (pos, this, &delta))) {
 329                 return false;
 330         }
 331
 332         if (ignored) {
 333                 *ignored = delta;
 334         }
 335
 336         if (delta) {
 337                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 338                         (*i)->group->move (delta, 0.0);
 339                 }
 340         }
 341
 342         return ret;
 343 }
 344
 345 void
 346 RegionView::set_samples_per_unit (gdouble spu)
 347 {
 348         TimeAxisViewItem::set_samples_per_unit (spu);
 349
 350         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 351                 (*i)->set_samples_per_unit (spu);
 352                 (*i)->set_duration (_region->length() / samples_per_unit);
 353         }
 354
 355         region_sync_changed ();
 356 }
 357
 358 bool
 359 RegionView::set_duration (nframes64_t frames, void *src)
 360 {
 361         if (!TimeAxisViewItem::set_duration (frames, src)) {
 362                 return false;
 363         }
 364
 365         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 366                 (*i)->set_duration (_region->length() / samples_per_unit);
 367         }
 368
 369         return true;
 370 }
 371
 372 void
 373 RegionView::set_colors ()
 374 {
 375         TimeAxisViewItem::set_colors ();
 376
 377         if (sync_mark) {
 378                 sync_mark->property_fill_color_rgba() = fill_color;
 379                 sync_line->property_fill_color_rgba() = fill_color;
 380         }
 381 }
 382
 383 void
 384 RegionView::set_frame_color ()
 385 {
 386         if (_region->opaque()) {
 387                 fill_opacity = 130;
 388         } else {
 389                 fill_opacity = 60;
 390         }
 391
 392         TimeAxisViewItem::set_frame_color ();
 393 }
 394
 395 void
 396 RegionView::fake_set_opaque (bool yn)
 397 {
 398        if (yn) {
 399                fill_opacity = 130;
 400        } else {
 401                fill_opacity = 60;
 402        }
 403
 404        set_frame_color ();
 405 }
 406
 407 void
 408 RegionView::show_region_editor ()
 409 {
 410         if (editor == 0) {
 411                 editor = new RegionEditor (trackview.session(), region());
 412         }
 413
 414         editor->present ();
 415         editor->show_all();
 416 }
 417
 418 void
 419 RegionView::hide_region_editor()
 420 {
 421         if (editor) {
 422                 editor->hide_all ();
 423         }
 424 }
 425
 426 Glib::ustring
 427 RegionView::make_name () const
 428 {
 429         Glib::ustring str;
 430
 431         // XXX nice to have some good icons for this
 432
 433         if (_region->locked()) {
 434                 str += '>';
 435                 str += _region->name();
 436                 str += '<';
 437         } else if (_region->position_locked()) {
 438                 str += '{';
 439                 str += _region->name();
 440                 str += '}';
 441         } else {
 442                 str = _region->name();
 443         }
 444
 445         if (_region->muted()) {
 446                 str = string ("!") + str;
 447         }
 448
 449         return str;
 450 }
 451
 452 void
 453 RegionView::region_renamed ()
 454 {
 455         Glib::ustring str = make_name ();
 456
 457         set_item_name (str, this);
 458         set_name_text (str);
 459         reset_width_dependent_items (_pixel_width);
 460 }
 461
 462 void
 463 RegionView::region_sync_changed ()
 464 {
 465         int sync_dir;
 466         nframes_t sync_offset;
 467
 468         sync_offset = _region->sync_offset (sync_dir);
 469
 470         if (sync_offset == 0) {
 471                 /* no need for a sync mark */
 472                 if (sync_mark) {
 473                         sync_mark->hide();
 474                         sync_line->hide ();
 475                 }
 476                 return;
 477         }
 478
 479         if (!sync_mark) {
 480
 481                 /* points set below */
 482
 483                 sync_mark = new ArdourCanvas::Polygon (*group);
 484                 sync_mark->property_fill_color_rgba() = fill_color;
 485
 486                 sync_line = new ArdourCanvas::Line (*group);
 487                 sync_line->property_fill_color_rgba() = fill_color;
 488                 sync_line->property_width_pixels() = 1;
 489         }
 490
 491         /* this has to handle both a genuine change of position, a change of samples_per_unit,
 492            and a change in the bounds of the _region->
 493          */
 494
 495         if (sync_offset == 0) {
 496
 497                 /* no sync mark - its the start of the region */
 498
 499                 sync_mark->hide();
 500                 sync_line->hide ();
 501
 502         } else {
 503
 504                 if ((sync_dir < 0) || ((sync_dir > 0) && (sync_offset > _region->length()))) {
 505
 506                         /* no sync mark - its out of the bounds of the region */
 507
 508                         sync_mark->hide();
 509                         sync_line->hide ();
 510
 511                 } else {
 512
 513                         /* lets do it */
 514
 515                         Points points;
 516
 517                         //points = sync_mark->property_points().get_value();
 518
 519                         double offset = sync_offset / samples_per_unit;
 520                         points.push_back (Gnome::Art::Point (offset - ((sync_mark_width-1)/2), 1));
 521                         points.push_back (Gnome::Art::Point (offset + ((sync_mark_width-1)/2), 1));
 522                         points.push_back (Gnome::Art::Point (offset, sync_mark_width - 1));
 523                         points.push_back (Gnome::Art::Point (offset - ((sync_mark_width-1)/2), 1));
 524                         sync_mark->property_points().set_value (points);
 525                         sync_mark->show ();
 526
 527                         points.clear ();
 528                         points.push_back (Gnome::Art::Point (offset, 0));
 529                         points.push_back (Gnome::Art::Point (offset, trackview.current_height() - NAME_HIGHLIGHT_SIZE));
 530
 531                         sync_line->property_points().set_value (points);
 532                         sync_line->show ();
 533                 }
 534         }
 535 }
 536
 537 void
 538 RegionView::move (double x_delta, double y_delta)
 539 {
 540         if (!_region->can_move() || (x_delta == 0 && y_delta == 0)) {
 541                 return;
 542         }
 543
 544         get_canvas_group()->move (x_delta, y_delta);
 545
 546         /* note: ghosts never leave their tracks so y_delta for them is always zero */
 547
 548         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 549                 (*i)->group->move (x_delta, 0.0);
 550         }
 551 }
 552
 553 void
 554 RegionView::remove_ghost_in (TimeAxisView& tv)
 555 {
 556         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 557                 if (&(*i)->trackview == &tv) {
 558                         delete *i;
 559                         break;
 560                 }
 561         }
 562 }
 563
 564 void
 565 RegionView::remove_ghost (GhostRegion* ghost)
 566 {
 567         if (in_destructor) {
 568                 return;
 569         }
 570
 571         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 572                 if (*i == ghost) {
 573                         ghosts.erase (i);
 574                         break;
 575                 }
 576         }
 577 }
 578
 579 uint32_t
 580 RegionView::get_fill_color ()
 581 {
 582         return fill_color;
 583 }
 584
 585 void
 586 RegionView::set_height (double h)
 587 {
 588         TimeAxisViewItem::set_height(h);
 589
 590         if (sync_line) {
 591                 Points points;
 592                 int sync_dir;
 593                 nframes_t sync_offset;
 594                 sync_offset = _region->sync_offset (sync_dir);
 595                 double offset = sync_offset / samples_per_unit;
 596
 597                 points.push_back (Gnome::Art::Point (offset, 0));
 598                 points.push_back (Gnome::Art::Point (offset, h - NAME_HIGHLIGHT_SIZE));
 599                 sync_line->property_points().set_value (points);
 600         }
 601
 602         for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin(); i != _coverage_frames.end(); ++i) {
 603                 (*i)->property_y2() = h + 1;
 604         }
 605 }
 606
 607 /** Remove old coverage frames and make new ones, if we're in a LayerDisplay mode
 608  *  which uses them. */
 609 void
 610 RegionView::update_coverage_frames (LayerDisplay d)
 611 {
 612         /* remove old coverage frames */
 613         for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin (); i != _coverage_frames.end (); ++i) {
 614                 delete *i;
 615         }
 616
 617         _coverage_frames.clear ();
 618
 619         if (d != Stacked) {
 620                 /* don't do coverage frames unless we're in stacked mode */
 621                 return;
 622         }
 623
 624         boost::shared_ptr<Playlist> pl (_region->playlist ());
 625         if (!pl) {
 626                 return;
 627         }
 628
 629         nframes_t const position = _region->first_frame ();
 630         nframes_t t = position;
 631         nframes_t const end = _region->last_frame ();
 632
 633         ArdourCanvas::SimpleRect* cr = 0;
 634         bool me = false;
 635
 636         uint32_t const color = frame->property_fill_color_rgba ();
 637         uint32_t const base_alpha = UINT_RGBA_A (color);
 638
 639         while (t < end) {
 640
 641                 t++;
 642
 643                 /* is this region is on top at time t? */
 644                 bool const new_me = (pl->top_unmuted_region_at (t) == _region);
 645
 646                 /* finish off any old rect, if required */
 647                 if (cr && me != new_me) {
 648                         cr->property_x2() = trackview.editor().frame_to_pixel (t - position);
 649                 }
 650
 651                 /* start off any new rect, if required */
 652                 if (cr == 0 || me != new_me) {
 653                         cr = new ArdourCanvas::SimpleRect (*group);
 654                         _coverage_frames.push_back (cr);
 655                         cr->property_x1() = trackview.editor().frame_to_pixel (t - position);
 656                         cr->property_y1() = 1;
 657                         cr->property_y2() = _height + 1;
 658                         cr->property_outline_pixels() = 0;
 659                         /* areas that will be played get a lower alpha */
 660                         uint32_t alpha = base_alpha;
 661                         if (new_me) {
 662                                 alpha /= 2;
 663                         }
 664                         cr->property_fill_color_rgba () = UINT_RGBA_CHANGE_A (color, alpha);
 665                 }
 666
 667                 t = pl->find_next_region_boundary (t, 1);
 668                 me = new_me;
 669         }
 670
 671         if (cr) {
 672                 /* finish off the last rectangle */
 673                 cr->property_x2() = trackview.editor().frame_to_pixel (end - position);
 674         }
 675
 676         frame_handle_start->raise_to_top ();
 677         frame_handle_end->raise_to_top ();
 678 }