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                 if (frame_handle_start) {
 161                         frame_handle_start->set_data ("regionview", this);
 162                         frame_handle_start->set_data ("isleft", (void*) 1);
 163                         frame_handle_start->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_frame_handle_event), frame_handle_start, this));
 164                         frame_handle_start->raise_to_top();
 165                 }
 166
 167                 if (frame_handle_end) {
 168                         frame_handle_end->set_data ("regionview", this);
 169                         frame_handle_end->set_data ("isleft", (void*) 0);
 170                         frame_handle_end->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_frame_handle_event), frame_handle_end, this));
 171                         frame_handle_end->raise_to_top();
 172                 }
 173         }
 174
 175         if (name_pixbuf) {
 176                 name_pixbuf->set_data ("regionview", this);
 177                 name_pixbuf->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_event), name_pixbuf, this));
 178         }
 179
 180         if (wfd) {
 181                 _enable_display = true;
 182         }
 183
 184         set_height (trackview.current_height());
 185
 186         _region->PropertyChanged.connect (*this, invalidator (*this), ui_bind (&RegionView::region_changed, this, _1), gui_context());
 187
 188         group->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_event), group, this));
 189
 190         set_colors ();
 191
 192         ColorsChanged.connect (sigc::mem_fun (*this, &RegionView::color_handler));
 193
 194         /* XXX sync mark drag? */
 195 }
 196
 197 RegionView::~RegionView ()
 198 {
 199         in_destructor = true;
 200
 201         for (vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 202                 delete *g;
 203         }
 204
 205         for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin (); i != _coverage_frames.end (); ++i) {
 206                 delete *i;
 207         }
 208
 209         delete editor;
 210 }
 211
 212 gint
 213 RegionView::_lock_toggle (ArdourCanvas::Item*, GdkEvent* ev, void* arg)
 214 {
 215         switch (ev->type) {
 216         case GDK_BUTTON_RELEASE:
 217                 static_cast<RegionView*>(arg)->lock_toggle ();
 218                 return TRUE;
 219                 break;
 220         default:
 221                 break;
 222         }
 223         return FALSE;
 224 }
 225
 226 void
 227 RegionView::lock_toggle ()
 228 {
 229         _region->set_locked (!_region->locked());
 230 }
 231
 232 void
 233 RegionView::region_changed (const PropertyChange& what_changed)
 234 {
 235         ENSURE_GUI_THREAD (*this, &RegionView::region_changed, what_changed);
 236
 237         if (what_changed.contains (ARDOUR::bounds_change)) {
 238                 region_resized (what_changed);
 239                 region_sync_changed ();
 240         }
 241         if (what_changed.contains (ARDOUR::Properties::muted)) {
 242                 region_muted ();
 243         }
 244         if (what_changed.contains (ARDOUR::Properties::opaque)) {
 245                 region_opacity ();
 246         }
 247         if (what_changed.contains (ARDOUR::Properties::name)) {
 248                 region_renamed ();
 249         }
 250         if (what_changed.contains (ARDOUR::Properties::sync_position)) {
 251                 region_sync_changed ();
 252         }
 253         if (what_changed.contains (ARDOUR::Properties::locked)) {
 254                 region_locked ();
 255         }
 256 }
 257
 258 void
 259 RegionView::region_locked ()
 260 {
 261         /* name will show locked status */
 262         region_renamed ();
 263 }
 264
 265 void
 266 RegionView::region_resized (const PropertyChange& what_changed)
 267 {
 268         double unit_length;
 269
 270         if (what_changed.contains (ARDOUR::Properties::position)) {
 271                 set_position (_region->position(), 0);
 272                 _time_converter.set_origin(_region->position());
 273         }
 274
 275         PropertyChange s_and_l;
 276         s_and_l.add (ARDOUR::Properties::start);
 277         s_and_l.add (ARDOUR::Properties::length);
 278
 279         if (what_changed.contains (s_and_l)) {
 280
 281                 set_duration (_region->length(), 0);
 282
 283                 unit_length = _region->length() / samples_per_unit;
 284
 285                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 286
 287                         (*i)->set_duration (unit_length);
 288
 289                 }
 290         }
 291 }
 292
 293 void
 294 RegionView::reset_width_dependent_items (double pixel_width)
 295 {
 296         TimeAxisViewItem::reset_width_dependent_items (pixel_width);
 297         _pixel_width = pixel_width;
 298 }
 299
 300 void
 301 RegionView::region_muted ()
 302 {
 303         set_frame_color ();
 304         region_renamed ();
 305 }
 306
 307 void
 308 RegionView::region_opacity ()
 309 {
 310         set_frame_color ();
 311 }
 312
 313 void
 314 RegionView::raise_to_top ()
 315 {
 316         _region->raise_to_top ();
 317 }
 318
 319 void
 320 RegionView::lower_to_bottom ()
 321 {
 322         _region->lower_to_bottom ();
 323 }
 324
 325 bool
 326 RegionView::set_position (nframes64_t pos, void* /*src*/, double* ignored)
 327 {
 328         double delta;
 329         bool ret;
 330
 331         if (!(ret = TimeAxisViewItem::set_position (pos, this, &delta))) {
 332                 return false;
 333         }
 334
 335         if (ignored) {
 336                 *ignored = delta;
 337         }
 338
 339         if (delta) {
 340                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 341                         (*i)->group->move (delta, 0.0);
 342                 }
 343         }
 344
 345         return ret;
 346 }
 347
 348 void
 349 RegionView::set_samples_per_unit (gdouble spu)
 350 {
 351         TimeAxisViewItem::set_samples_per_unit (spu);
 352
 353         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 354                 (*i)->set_samples_per_unit (spu);
 355                 (*i)->set_duration (_region->length() / samples_per_unit);
 356         }
 357
 358         region_sync_changed ();
 359 }
 360
 361 bool
 362 RegionView::set_duration (nframes64_t frames, void *src)
 363 {
 364         if (!TimeAxisViewItem::set_duration (frames, src)) {
 365                 return false;
 366         }
 367
 368         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 369                 (*i)->set_duration (_region->length() / samples_per_unit);
 370         }
 371
 372         return true;
 373 }
 374
 375 void
 376 RegionView::set_colors ()
 377 {
 378         TimeAxisViewItem::set_colors ();
 379
 380         if (sync_mark) {
 381                 sync_mark->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255);     // fill_color;                   // FIXME make a themeable colour
 382                 sync_line->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255);     // fill_color;                   // FIXME make a themeable colour
 383         }
 384 }
 385
 386 void
 387 RegionView::set_frame_color ()
 388 {
 389         if (_region->opaque()) {
 390                 fill_opacity = 130;
 391         } else {
 392                 fill_opacity = 60;
 393         }
 394
 395         TimeAxisViewItem::set_frame_color ();
 396 }
 397
 398 void
 399 RegionView::fake_set_opaque (bool yn)
 400 {
 401        if (yn) {
 402                fill_opacity = 130;
 403        } else {
 404                fill_opacity = 60;
 405        }
 406
 407        set_frame_color ();
 408 }
 409
 410 void
 411 RegionView::show_region_editor ()
 412 {
 413         if (editor == 0) {
 414                 editor = new RegionEditor (trackview.session(), region());
 415         }
 416
 417         editor->present ();
 418         editor->show_all();
 419 }
 420
 421 void
 422 RegionView::hide_region_editor()
 423 {
 424         if (editor) {
 425                 editor->hide_all ();
 426         }
 427 }
 428
 429 Glib::ustring
 430 RegionView::make_name () const
 431 {
 432         Glib::ustring str;
 433
 434         // XXX nice to have some good icons for this
 435
 436         if (_region->locked()) {
 437                 str += '>';
 438                 str += _region->name();
 439                 str += '<';
 440         } else if (_region->position_locked()) {
 441                 str += '{';
 442                 str += _region->name();
 443                 str += '}';
 444         } else {
 445                 str = _region->name();
 446         }
 447
 448         if (_region->muted()) {
 449                 str = string ("!") + str;
 450         }
 451
 452         return str;
 453 }
 454
 455 void
 456 RegionView::region_renamed ()
 457 {
 458         Glib::ustring str = make_name ();
 459
 460         set_item_name (str, this);
 461         set_name_text (str);
 462         reset_width_dependent_items (_pixel_width);
 463 }
 464
 465 void
 466 RegionView::region_sync_changed ()
 467 {
 468         int sync_dir;
 469         nframes_t sync_offset;
 470
 471         sync_offset = _region->sync_offset (sync_dir);
 472
 473         if (sync_offset == 0) {
 474                 /* no need for a sync mark */
 475                 if (sync_mark) {
 476                         sync_mark->hide();
 477                         sync_line->hide ();
 478                 }
 479                 return;
 480         }
 481
 482         if (!sync_mark) {
 483
 484                 /* points set below */
 485
 486                 sync_mark = new ArdourCanvas::Polygon (*group);
 487                 sync_mark->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255);     // fill_color;                   // FIXME make a themeable colour
 488
 489                 sync_line = new ArdourCanvas::Line (*group);
 490                 sync_line->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255);     // fill_color;                   // FIXME make a themeable colour
 491                 sync_line->property_width_pixels() = 1;
 492         }
 493
 494         /* this has to handle both a genuine change of position, a change of samples_per_unit,
 495            and a change in the bounds of the _region->
 496          */
 497
 498         if (sync_offset == 0) {
 499
 500                 /* no sync mark - its the start of the region */
 501
 502                 sync_mark->hide();
 503                 sync_line->hide ();
 504
 505         } else {
 506
 507                 if ((sync_dir < 0) || ((sync_dir > 0) && (sync_offset > _region->length()))) {
 508
 509                         /* no sync mark - its out of the bounds of the region */
 510
 511                         sync_mark->hide();
 512                         sync_line->hide ();
 513
 514                 } else {
 515
 516                         /* lets do it */
 517
 518                         Points points;
 519
 520                         //points = sync_mark->property_points().get_value();
 521
 522                         double offset = sync_offset / samples_per_unit;
 523                         points.push_back (Gnome::Art::Point (offset - ((sync_mark_width-1)/2), 1));
 524                         points.push_back (Gnome::Art::Point (offset + ((sync_mark_width-1)/2), 1));
 525                         points.push_back (Gnome::Art::Point (offset, sync_mark_width - 1));
 526                         points.push_back (Gnome::Art::Point (offset - ((sync_mark_width-1)/2), 1));
 527                         sync_mark->property_points().set_value (points);
 528                         sync_mark->show ();
 529
 530                         points.clear ();
 531                         points.push_back (Gnome::Art::Point (offset, 0));
 532                         points.push_back (Gnome::Art::Point (offset, trackview.current_height() - NAME_HIGHLIGHT_SIZE));
 533
 534                         sync_line->property_points().set_value (points);
 535                         sync_line->show ();
 536                 }
 537         }
 538 }
 539
 540 void
 541 RegionView::move (double x_delta, double y_delta)
 542 {
 543         if (!_region->can_move() || (x_delta == 0 && y_delta == 0)) {
 544                 return;
 545         }
 546
 547         get_canvas_group()->move (x_delta, y_delta);
 548
 549         /* note: ghosts never leave their tracks so y_delta for them is always zero */
 550
 551         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 552                 (*i)->group->move (x_delta, 0.0);
 553         }
 554 }
 555
 556 void
 557 RegionView::remove_ghost_in (TimeAxisView& tv)
 558 {
 559         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 560                 if (&(*i)->trackview == &tv) {
 561                         delete *i;
 562                         break;
 563                 }
 564         }
 565 }
 566
 567 void
 568 RegionView::remove_ghost (GhostRegion* ghost)
 569 {
 570         if (in_destructor) {
 571                 return;
 572         }
 573
 574         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 575                 if (*i == ghost) {
 576                         ghosts.erase (i);
 577                         break;
 578                 }
 579         }
 580 }
 581
 582 uint32_t
 583 RegionView::get_fill_color ()
 584 {
 585         return fill_color;
 586 }
 587
 588 void
 589 RegionView::set_height (double h)
 590 {
 591         TimeAxisViewItem::set_height(h);
 592
 593         if (sync_line) {
 594                 Points points;
 595                 int sync_dir;
 596                 nframes_t sync_offset;
 597                 sync_offset = _region->sync_offset (sync_dir);
 598                 double offset = sync_offset / samples_per_unit;
 599
 600                 points.push_back (Gnome::Art::Point (offset, 0));
 601                 points.push_back (Gnome::Art::Point (offset, h - NAME_HIGHLIGHT_SIZE));
 602                 sync_line->property_points().set_value (points);
 603         }
 604
 605         for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin(); i != _coverage_frames.end(); ++i) {
 606                 (*i)->property_y2() = h + 1;
 607         }
 608 }
 609
 610 /** Remove old coverage frames and make new ones, if we're in a LayerDisplay mode
 611  *  which uses them. */
 612 void
 613 RegionView::update_coverage_frames (LayerDisplay d)
 614 {
 615         /* remove old coverage frames */
 616         for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin (); i != _coverage_frames.end (); ++i) {
 617                 delete *i;
 618         }
 619
 620         _coverage_frames.clear ();
 621
 622         if (d != Stacked) {
 623                 /* don't do coverage frames unless we're in stacked mode */
 624                 return;
 625         }
 626
 627         boost::shared_ptr<Playlist> pl (_region->playlist ());
 628         if (!pl) {
 629                 return;
 630         }
 631
 632         nframes_t const position = _region->first_frame ();
 633         nframes_t t = position;
 634         nframes_t const end = _region->last_frame ();
 635
 636         ArdourCanvas::SimpleRect* cr = 0;
 637         bool me = false;
 638
 639         uint32_t const color = frame->property_fill_color_rgba ();
 640         uint32_t const base_alpha = UINT_RGBA_A (color);
 641
 642         while (t < end) {
 643
 644                 t++;
 645
 646                 /* is this region is on top at time t? */
 647                 bool const new_me = (pl->top_unmuted_region_at (t) == _region);
 648
 649                 /* finish off any old rect, if required */
 650                 if (cr && me != new_me) {
 651                         cr->property_x2() = trackview.editor().frame_to_pixel (t - position);
 652                 }
 653
 654                 /* start off any new rect, if required */
 655                 if (cr == 0 || me != new_me) {
 656                         cr = new ArdourCanvas::SimpleRect (*group);
 657                         _coverage_frames.push_back (cr);
 658                         cr->property_x1() = trackview.editor().frame_to_pixel (t - position);
 659                         cr->property_y1() = 1;
 660                         cr->property_y2() = _height + 1;
 661                         cr->property_outline_pixels() = 0;
 662                         /* areas that will be played get a lower alpha */
 663                         uint32_t alpha = base_alpha;
 664                         if (new_me) {
 665                                 alpha /= 2;
 666                         }
 667                         cr->property_fill_color_rgba () = UINT_RGBA_CHANGE_A (color, alpha);
 668                 }
 669
 670                 t = pl->find_next_region_boundary (t, 1);
 671                 me = new_me;
 672         }
 673
 674         if (cr) {
 675                 /* finish off the last rectangle */
 676                 cr->property_x2() = trackview.editor().frame_to_pixel (end - position);
 677         }
 678
 679         if (frame_handle_start) {
 680                 frame_handle_start->raise_to_top ();
 681                 frame_handle_end->raise_to_top ();
 682         }
 683 }