gtk2_ardour/audio_streamview.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 #include <cmath>
  20 #include <cassert>
  21 #include <utility>
  22
  23 #include <gtkmm.h>
  24
  25 #include <gtkmm2ext/gtk_ui.h>
  26
  27 #include "pbd/stacktrace.h"
  28
  29 #include "ardour/audioregion.h"
  30 #include "ardour/audiofilesource.h"
  31 #include "ardour/audio_track.h"
  32 #include "ardour/record_enable_control.h"
  33 #include "ardour/region_factory.h"
  34 #include "ardour/profile.h"
  35 #include "ardour/rc_configuration.h"
  36 #include "ardour/session.h"
  37
  38 #include "canvas/rectangle.h"
  39
  40 #include "audio_streamview.h"
  41 #include "audio_region_view.h"
  42 #include "tape_region_view.h"
  43 #include "audio_time_axis.h"
  44 #include "region_selection.h"
  45 #include "region_gain_line.h"
  46 #include "selection.h"
  47 #include "public_editor.h"
  48 #include "rgb_macros.h"
  49 #include "gui_thread.h"
  50 #include "ui_config.h"
  51
  52 #include "pbd/i18n.h"
  53
  54 using namespace std;
  55 using namespace ARDOUR;
  56 using namespace PBD;
  57 using namespace Editing;
  58
  59 AudioStreamView::AudioStreamView (AudioTimeAxisView& tv)
  60         : StreamView (tv)
  61 {
  62         color_handler ();
  63         _amplitude_above_axis = 1.0;
  64 }
  65
  66 int
  67 AudioStreamView::set_amplitude_above_axis (gdouble app)
  68 {
  69         RegionViewList::iterator i;
  70
  71         if (app < 1.0) {
  72                 return -1;
  73         }
  74
  75         _amplitude_above_axis = app;
  76
  77         for (i = region_views.begin(); i != region_views.end(); ++i) {
  78                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
  79                 if (arv)
  80                         arv->set_amplitude_above_axis (app);
  81         }
  82
  83         return 0;
  84 }
  85
  86 RegionView*
  87 AudioStreamView::create_region_view (boost::shared_ptr<Region> r, bool wait_for_waves, bool recording)
  88 {
  89         AudioRegionView *region_view = 0;
  90         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (r);
  91
  92         if (region == 0) {
  93                 return 0;
  94         }
  95
  96         switch (_trackview.audio_track()->mode()) {
  97
  98         case NonLayered:
  99         case Normal:
 100                 if (recording) {
 101                         region_view = new AudioRegionView (_canvas_group, _trackview, region,
 102                                                            _samples_per_pixel, region_color, recording, TimeAxisViewItem::Visibility(
 103                                                                    TimeAxisViewItem::ShowFrame |
 104                                                                    TimeAxisViewItem::HideFrameRight |
 105                                                                    TimeAxisViewItem::HideFrameLeft |
 106                                                                    TimeAxisViewItem::HideFrameTB));
 107                 } else {
 108                         region_view = new AudioRegionView (_canvas_group, _trackview, region,
 109                                         _samples_per_pixel, region_color);
 110                 }
 111                 break;
 112         case Destructive:
 113                 region_view = new TapeAudioRegionView (_canvas_group, _trackview, region,
 114                                                        _samples_per_pixel, region_color);
 115                 break;
 116         default:
 117                 fatal << string_compose (_("programming error: %1"), "illegal track mode in ::create_region_view()") << endmsg;
 118                 abort(); /*NOTREACHED*/
 119
 120         }
 121
 122         region_view->init (wait_for_waves);
 123         region_view->set_amplitude_above_axis(_amplitude_above_axis);
 124         region_view->set_height (child_height ());
 125
 126         /* if its the special single-sample length that we use for rec-regions, make it
 127            insensitive to events
 128         */
 129
 130         if (region->length() == 1) {
 131                 region_view->set_sensitive (false);
 132         }
 133
 134         return region_view;
 135 }
 136
 137 RegionView*
 138 AudioStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves, bool recording)
 139 {
 140         RegionView *region_view = create_region_view (r, wait_for_waves, recording);
 141
 142         if (region_view == 0) {
 143                 return 0;
 144         }
 145
 146         region_views.push_front (region_view);
 147
 148         /* catch region going away */
 149
 150         r->DropReferences.connect (*this, invalidator (*this), boost::bind (&AudioStreamView::remove_region_view, this, boost::weak_ptr<Region> (r)), gui_context());
 151
 152         RegionViewAdded (region_view);
 153
 154         return region_view;
 155 }
 156
 157 void
 158 AudioStreamView::redisplay_track ()
 159 {
 160         list<RegionView *>::iterator i;
 161
 162         // Flag region views as invalid and disable drawing
 163         for (i = region_views.begin(); i != region_views.end(); ++i) {
 164                 (*i)->set_valid (false);
 165                 (*i)->enable_display (false);
 166         }
 167
 168         // Add and display views, and flag them as valid
 169         if (_trackview.is_audio_track()) {
 170                 _trackview.track()->playlist()->foreach_region(
 171                         sigc::hide_return (sigc::mem_fun (*this, &StreamView::add_region_view))
 172                         );
 173         }
 174
 175         // Stack regions by layer, and remove invalid regions
 176         layer_regions();
 177 }
 178
 179 void
 180 AudioStreamView::setup_rec_box ()
 181 {
 182         //cerr << _trackview.name() << " streamview SRB region_views.size() = " << region_views.size() << endl;
 183
 184         if (_trackview.session()->transport_rolling()) {
 185
 186                 // cerr << "\trolling\n";
 187
 188                 if (!rec_active &&
 189                     _trackview.session()->record_status() == Session::Recording &&
 190                     _trackview.track()->rec_enable_control()->get_value()) {
 191                         if (_trackview.audio_track()->mode() == Normal && UIConfiguration::instance().get_show_waveforms_while_recording() && rec_regions.size() == rec_rects.size()) {
 192
 193                                 /* add a new region, but don't bother if they set show-waveforms-while-recording mid-record */
 194
 195                                 SourceList sources;
 196
 197                                 rec_data_ready_connections.drop_connections ();
 198                                 boost::shared_ptr<AudioTrack> tr = _trackview.audio_track();
 199
 200                                 for (uint32_t n = 0; n < tr->n_channels().n_audio(); ++n) {
 201                                         boost::shared_ptr<AudioFileSource> src = tr->write_source (n);
 202                                         if (src) {
 203                                                 sources.push_back (src);
 204                                                 src->PeakRangeReady.connect (rec_data_ready_connections,
 205                                                                              invalidator (*this),
 206                                                                              boost::bind (&AudioStreamView::rec_peak_range_ready, this, _1, _2, boost::weak_ptr<Source>(src)),
 207                                                                              gui_context());
 208                                         }
 209                                 }
 210
 211                                 // handle multi
 212
 213                                 framepos_t start = 0;
 214                                 if (rec_regions.size() > 0) {
 215                                         start = rec_regions.back().first->start()
 216                                                         + _trackview.track()->get_captured_frames(rec_regions.size()-1);
 217                                 }
 218
 219                                 PropertyList plist;
 220
 221                                 plist.add (Properties::start, start);
 222                                 plist.add (Properties::length, 1);
 223                                 plist.add (Properties::name, string());
 224                                 plist.add (Properties::layer, 0);
 225
 226                                 boost::shared_ptr<AudioRegion> region (
 227                                         boost::dynamic_pointer_cast<AudioRegion>(RegionFactory::create (sources, plist, false)));
 228
 229                                 assert(region);
 230                                 region->set_position (_trackview.session()->transport_frame());
 231                                 rec_regions.push_back (make_pair(region, (RegionView*) 0));
 232                         }
 233
 234                         /* start a new rec box */
 235
 236                         boost::shared_ptr<AudioTrack> at = _trackview.audio_track();
 237                         framepos_t const frame_pos = at->current_capture_start ();
 238                         double     const width     = ((at->mode() == Destructive) ? 2 : 0);
 239
 240                         create_rec_box(frame_pos, width);
 241
 242                 } else if (rec_active &&
 243                            (_trackview.session()->record_status() != Session::Recording ||
 244                             !_trackview.track()->rec_enable_control()->get_value())) {
 245                         screen_update_connection.disconnect();
 246                         rec_active = false;
 247                         rec_updating = false;
 248                 }
 249
 250         } else {
 251
 252                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 253
 254                 if (!rec_rects.empty() || !rec_regions.empty()) {
 255
 256                         /* disconnect rapid update */
 257                         screen_update_connection.disconnect();
 258                         rec_data_ready_connections.drop_connections ();
 259                         rec_updating = false;
 260                         rec_active = false;
 261
 262                         /* remove temp regions */
 263
 264                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 265                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 266
 267                                 tmp = iter;
 268                                 ++tmp;
 269
 270                                 (*iter).first->drop_references ();
 271
 272                                 iter = tmp;
 273                         }
 274
 275                         rec_regions.clear();
 276
 277                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 278
 279                         /* transport stopped, clear boxes */
 280                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 281                                 RecBoxInfo &rect = (*iter);
 282                                 delete rect.rectangle;
 283                         }
 284
 285                         rec_rects.clear();
 286
 287                 }
 288         }
 289 }
 290
 291 void
 292 AudioStreamView::rec_peak_range_ready (framepos_t start, framecnt_t cnt, boost::weak_ptr<Source> weak_src)
 293 {
 294         ENSURE_GUI_THREAD (*this, &AudioStreamView::rec_peak_range_ready, start, cnt, weak_src)
 295
 296         boost::shared_ptr<Source> src (weak_src.lock());
 297
 298         if (!src) {
 299                 return;
 300         }
 301
 302         // this is called from the peak building thread
 303
 304         if (rec_data_ready_map.size() == 0 || start + cnt > last_rec_data_frame) {
 305                 last_rec_data_frame = start + cnt;
 306         }
 307
 308         rec_data_ready_map[src] = true;
 309
 310         if (rec_data_ready_map.size() == _trackview.track()->n_channels().n_audio()) {
 311                 update_rec_regions (start, cnt);
 312                 rec_data_ready_map.clear();
 313         }
 314 }
 315
 316 void
 317 AudioStreamView::update_rec_regions (framepos_t start, framecnt_t cnt)
 318 {
 319         if (!UIConfiguration::instance().get_show_waveforms_while_recording ()) {
 320                 return;
 321         }
 322
 323         uint32_t n = 0;
 324
 325         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 326
 327                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp = iter;
 328                 ++tmp;
 329
 330                 assert (n < rec_rects.size());
 331
 332                 if (!rec_rects[n].rectangle->visible()) {
 333                         /* rect already hidden, this region is done */
 334                         iter = tmp;
 335                         continue;
 336                 }
 337
 338                 boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(iter->first);
 339
 340                 if (!region) {
 341                         iter = tmp;
 342                         continue;
 343                 }
 344
 345                 framecnt_t origlen = region->length();
 346
 347                 if (region == rec_regions.back().first && rec_active) {
 348
 349                         if (last_rec_data_frame > region->start()) {
 350
 351                                 framecnt_t nlen = last_rec_data_frame - region->start();
 352
 353                                 if (nlen != region->length()) {
 354
 355                                         region->suspend_property_changes ();
 356                                         /* set non-musical position / length */
 357                                         region->set_position (_trackview.track()->get_capture_start_frame(n));
 358                                         region->set_length (nlen, 0);
 359                                         region->resume_property_changes ();
 360
 361                                         if (origlen == 1) {
 362                                                 /* our special initial length */
 363                                                 add_region_view_internal (region, false, true);
 364                                                 setup_new_rec_layer_time (region);
 365                                         }
 366
 367                                         check_record_layers (region, (region->position() - region->start() + start + cnt));
 368
 369                                         /* also update rect */
 370                                         ArdourCanvas::Rectangle * rect = rec_rects[n].rectangle;
 371                                         gdouble xend = _trackview.editor().sample_to_pixel (region->position() + region->length());
 372                                         rect->set_x1 (xend);
 373                                 }
 374
 375                         } else {
 376
 377                                 framecnt_t nlen = _trackview.track()->get_captured_frames(n);
 378
 379                                 if (nlen != region->length()) {
 380
 381                                         if (region->source_length(0) >= region->start() + nlen) {
 382
 383                                                 region->suspend_property_changes ();
 384                                                 region->set_position (_trackview.track()->get_capture_start_frame(n));
 385                                                 region->set_length (nlen, 0);
 386                                                 region->resume_property_changes ();
 387
 388                                                 if (origlen == 1) {
 389                                                         /* our special initial length */
 390                                                         add_region_view_internal (region, false, true);
 391                                                 }
 392
 393                                                 /* also hide rect */
 394                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 395                                                 rect->hide();
 396
 397                                         }
 398                                 }
 399                         }
 400                 }
 401
 402                 iter = tmp;
 403         }
 404 }
 405
 406 void
 407 AudioStreamView::show_all_fades ()
 408 {
 409         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 410                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 411                 if (arv) {
 412                         arv->set_fade_visibility (true);
 413                 }
 414         }
 415 }
 416
 417 void
 418 AudioStreamView::hide_all_fades ()
 419 {
 420         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 421                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 422                 if (arv) {
 423                         arv->set_fade_visibility (false);
 424                 }
 425         }
 426 }
 427
 428 /** Hide xfades for regions that overlap ar.
 429  *  @return Pair of lists; first is the AudioRegionViews that start xfades were hidden for,
 430  *  second is the AudioRegionViews that end xfades were hidden for.
 431  */
 432 pair<list<AudioRegionView*>, list<AudioRegionView*> >
 433 AudioStreamView::hide_xfades_with (boost::shared_ptr<AudioRegion> ar)
 434 {
 435         list<AudioRegionView*> start_hidden;
 436         list<AudioRegionView*> end_hidden;
 437
 438         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 439                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 440                 if (arv) {
 441                         switch (arv->region()->coverage (ar->position(), ar->last_frame())) {
 442                         case Evoral::OverlapNone:
 443                                 break;
 444                         default:
 445                                 if (arv->start_xfade_visible ()) {
 446                                         start_hidden.push_back (arv);
 447                                 }
 448                                 if (arv->end_xfade_visible ()) {
 449                                         end_hidden.push_back (arv);
 450                                 }
 451                                 arv->hide_xfades ();
 452                                 break;
 453                         }
 454                 }
 455         }
 456
 457         return make_pair (start_hidden, end_hidden);
 458 }
 459
 460 void
 461 AudioStreamView::color_handler ()
 462 {
 463         //case cAudioTrackBase:
 464         if (_trackview.is_track()) {
 465                 canvas_rect->set_fill_color (UIConfiguration::instance().color_mod ("audio track base", "audio track base"));
 466         }
 467
 468         //case cAudioBusBase:
 469         if (!_trackview.is_track()) {
 470                 canvas_rect->set_fill_color (UIConfiguration::instance().color_mod ("audio bus base", "audio bus base"));
 471         }
 472 }
 473
 474 void
 475 AudioStreamView::set_selected_points (PointSelection& points)
 476 {
 477         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 478                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 479                 if (arv && arv->get_gain_line ()) {
 480                         arv->get_gain_line ()->set_selected_points (points);
 481                 }
 482         }
 483 }