gtk2_ardour/editor_audio_import.cc

   1 /*
   2     Copyright (C) 2000-2006 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 <sys/types.h>
  21 #include <sys/stat.h>
  22 #include <errno.h>
  23 #include <unistd.h>
  24
  25 #include <sndfile.h>
  26
  27 #include <pbd/pthread_utils.h>
  28 #include <pbd/basename.h>
  29 #include <pbd/shortpath.h>
  30
  31 #include <gtkmm2ext/choice.h>
  32 #include <gtkmm2ext/window_title.h>
  33
  34 #include <ardour/session.h>
  35 #include <ardour/audioplaylist.h>
  36 #include <ardour/audioregion.h>
  37 #include <ardour/audio_diskstream.h>
  38 #include <ardour/utils.h>
  39 #include <ardour/audio_track.h>
  40 #include <ardour/audioplaylist.h>
  41 #include <ardour/audiofilesource.h>
  42 #include <ardour/region_factory.h>
  43 #include <ardour/source_factory.h>
  44 #include <pbd/memento_command.h>
  45
  46 #include "ardour_ui.h"
  47 #include "editor.h"
  48 #include "sfdb_ui.h"
  49 #include "editing.h"
  50 #include "audio_time_axis.h"
  51 #include "utils.h"
  52
  53 #include "i18n.h"
  54
  55 using namespace std;
  56 using namespace ARDOUR;
  57 using namespace PBD;
  58 using namespace sigc;
  59 using namespace Gtk;
  60 using namespace Gtkmm2ext;
  61 using namespace Editing;
  62 using Glib::ustring;
  63
  64 /* Functions supporting the incorporation of external (non-captured) audio material into ardour */
  65
  66 void
  67 Editor::add_external_audio_action (ImportMode mode)
  68 {
  69 }
  70
  71 void
  72 Editor::external_audio_dialog ()
  73 {
  74         vector<Glib::ustring> paths;
  75
  76         if (session == 0) {
  77                 MessageDialog msg (0, _("You can't import or embed an audiofile until you have a session loaded."));
  78                 msg.run ();
  79                 return;
  80         }
  81
  82         if (sfbrowser == 0) {
  83                 sfbrowser = new SoundFileOmega (*this, _("Add existing audio"), session, selection->tracks.size());
  84         } else {
  85                 sfbrowser->reset (selection->tracks.size());
  86         }
  87
  88         sfbrowser->show_all ();
  89
  90   again:
  91         int response = sfbrowser->run ();
  92
  93         switch (response) {
  94         case RESPONSE_APPLY:
  95                 // leave the dialog open
  96                 break;
  97
  98         case RESPONSE_OK:
  99                 sfbrowser->hide ();
 100                 break;
 101         default:
 102                 // cancel from the browser - we are done
 103                 sfbrowser->hide ();
 104                 return;
 105         }
 106
 107         /* lets do it */
 108
 109         paths = sfbrowser->get_paths ();
 110
 111         ImportPosition pos = sfbrowser->get_position ();
 112         ImportMode mode = sfbrowser->get_mode ();
 113         ImportDisposition chns = sfbrowser->get_channel_disposition ();
 114         nframes64_t where;
 115
 116         switch (pos) {
 117         case ImportAtEditCursor:
 118                 where = edit_cursor->current_frame;
 119                 break;
 120         case ImportAtTimestamp:
 121                 where = -1;
 122                 break;
 123         case ImportAtPlayhead:
 124                 where = playhead_cursor->current_frame;
 125                 break;
 126         case ImportAtStart:
 127                 where = session->current_start_frame();
 128                 break;
 129         }
 130
 131         if (sfbrowser->copy_files_btn.get_active()) {
 132                 do_import (paths, chns, mode, where);
 133         } else {
 134                 do_embed (paths, chns, mode, where);
 135         }
 136
 137         if (response == RESPONSE_APPLY) {
 138                 goto again;
 139         }
 140 }
 141
 142 boost::shared_ptr<AudioTrack>
 143 Editor::get_nth_selected_audio_track (int nth) const
 144 {
 145         AudioTimeAxisView* atv;
 146         TrackSelection::iterator x;
 147
 148         for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
 149                 if (dynamic_cast<AudioTimeAxisView*>(*x)) {
 150                         --nth;
 151                 }
 152         }
 153
 154         if (x == selection->tracks.end()) {
 155                 atv = dynamic_cast<AudioTimeAxisView*>(selection->tracks.back());
 156         } else {
 157                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 158         }
 159
 160         if (!atv) {
 161                 return boost::shared_ptr<AudioTrack>();
 162         }
 163
 164         return atv->audio_track();
 165 }
 166
 167 void
 168 Editor::do_import (vector<ustring> paths, ImportDisposition chns, ImportMode mode, nframes64_t& pos)
 169 {
 170         boost::shared_ptr<AudioTrack> track;
 171         vector<ustring> to_import;
 172         bool ok = false;
 173         int nth = 0;
 174
 175         if (interthread_progress_window == 0) {
 176                 build_interthread_progress_window ();
 177         }
 178
 179         switch (chns) {
 180         case Editing::ImportDistinctFiles:
 181                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 182
 183                         to_import.clear ();
 184                         to_import.push_back (*a);
 185
 186                         if (mode == Editing::ImportToTrack) {
 187                                 track = get_nth_selected_audio_track (nth++);
 188                         }
 189
 190                         if (import_sndfiles (to_import, mode, pos, 1, -1, track)) {
 191                                 goto out;
 192                         }
 193
 194                 }
 195                 break;
 196
 197         case Editing::ImportDistinctChannels:
 198                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 199
 200                         to_import.clear ();
 201                         to_import.push_back (*a);
 202
 203                         if (import_sndfiles (to_import, mode, pos, -1, -1, track)) {
 204                                 goto out;
 205                         }
 206
 207                 }
 208                 break;
 209
 210         case Editing::ImportMergeFiles:
 211                 /* create 1 region from all paths, add to 1 track,
 212                    ignore "track"
 213                 */
 214                 if (import_sndfiles (paths, mode, pos, 1, 1, track)) {
 215                         goto out;
 216                 }
 217                 break;
 218
 219         case Editing::ImportSerializeFiles:
 220                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 221
 222                         to_import.clear ();
 223                         to_import.push_back (*a);
 224
 225                         /* create 1 region from this path, add to 1 track,
 226                            reuse "track" across paths
 227                         */
 228
 229                         if (import_sndfiles (to_import, mode, pos, 1, 1, track)) {
 230                                 goto out;
 231                         }
 232
 233                 }
 234                 break;
 235         }
 236
 237         ok = true;
 238
 239   out:
 240         if (ok) {
 241                 session->save_state ("");
 242         }
 243
 244         interthread_progress_window->hide_all ();
 245 }
 246
 247 bool
 248 Editor::idle_do_embed (vector<ustring> paths, ImportDisposition chns, ImportMode mode, nframes64_t& pos)
 249 {
 250         _do_embed (paths, chns, mode, pos);
 251         return false;
 252 }
 253
 254 void
 255 Editor::do_embed (vector<ustring> paths, ImportDisposition chns, ImportMode mode, nframes64_t& pos)
 256 {
 257 #ifdef GTKOSX
 258         Glib::signal_idle().connect (bind (mem_fun (*this, &Editor::idle_do_embed), paths, chns, mode, pos));
 259 #else
 260         _do_embed (paths, chns, mode, pos);
 261 #endif
 262 }
 263
 264 void
 265 Editor::_do_embed (vector<ustring> paths, ImportDisposition chns, ImportMode mode, nframes64_t& pos)
 266 {
 267         boost::shared_ptr<AudioTrack> track;
 268         bool check_sample_rate = true;
 269         bool ok = false;
 270         vector<ustring> to_embed;
 271         bool multi = paths.size() > 1;
 272         int nth = 0;
 273
 274         switch (chns) {
 275         case Editing::ImportDistinctFiles:
 276                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 277
 278                         to_embed.clear ();
 279                         to_embed.push_back (*a);
 280
 281                         if (mode == Editing::ImportToTrack) {
 282                                 track = get_nth_selected_audio_track (nth++);
 283                         }
 284
 285                         if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, 1, -1, track) < -1) {
 286                                 goto out;
 287                         }
 288                 }
 289                 break;
 290
 291         case Editing::ImportDistinctChannels:
 292                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 293
 294                         to_embed.clear ();
 295                         to_embed.push_back (*a);
 296
 297                         if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, -1, -1, track) < -1) {
 298                                 goto out;
 299                         }
 300                 }
 301                 break;
 302
 303         case Editing::ImportMergeFiles:
 304                 if (embed_sndfiles (paths, multi, check_sample_rate, mode, pos, 1, 1, track) < -1) {
 305                         goto out;
 306                 }
 307         break;
 308
 309         case Editing::ImportSerializeFiles:
 310                 for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
 311
 312                         to_embed.clear ();
 313                         to_embed.push_back (*a);
 314
 315                         if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, 1, 1, track) < -1) {
 316                                 goto out;
 317                         }
 318                 }
 319                 break;
 320         }
 321
 322         ok = true;
 323
 324   out:
 325         if (ok) {
 326                 session->save_state ("");
 327         }
 328 }
 329
 330 int
 331 Editor::import_sndfiles (vector<ustring> paths, ImportMode mode, nframes64_t& pos,
 332                          int target_regions, int target_tracks, boost::shared_ptr<AudioTrack>& track)
 333 {
 334         WindowTitle title = string_compose (_("importing %1"), paths.front());
 335
 336         interthread_progress_window->set_title (title.get_string());
 337         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
 338         interthread_progress_window->show_all ();
 339         interthread_progress_bar.set_fraction (0.0f);
 340         interthread_cancel_label.set_text (_("Cancel Import"));
 341         current_interthread_info = &import_status;
 342
 343         import_status.paths = paths;
 344         import_status.done = false;
 345         import_status.cancel = false;
 346         import_status.freeze = false;
 347         import_status.done = 0.0;
 348
 349         interthread_progress_connection = Glib::signal_timeout().connect
 350                 (bind (mem_fun(*this, &Editor::import_progress_timeout), (gpointer) 0), 100);
 351
 352         track_canvas.get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
 353         ARDOUR_UI::instance()->flush_pending ();
 354
 355         /* start import thread for this spec. this will ultimately call Session::import_audiofile()
 356            and if successful will add the file(s) as a region to the session region list.
 357         */
 358
 359         pthread_create_and_store ("import", &import_status.thread, 0, _import_thread, this);
 360         pthread_detach (import_status.thread);
 361
 362         while (!(import_status.done || import_status.cancel)) {
 363                 gtk_main_iteration ();
 364         }
 365
 366         interthread_progress_window->hide ();
 367
 368         import_status.done = true;
 369         interthread_progress_connection.disconnect ();
 370
 371         /* import thread finished - see if we should build a new track */
 372
 373         boost::shared_ptr<AudioRegion> r;
 374
 375         if (import_status.cancel || import_status.sources.empty()) {
 376                 goto out;
 377         }
 378
 379         if (add_sources (paths, import_status.sources, pos, mode, target_regions, target_tracks, track, false) == 0) {
 380                 session->save_state ("");
 381         }
 382
 383   out:
 384         track_canvas.get_window()->set_cursor (*current_canvas_cursor);
 385         return 0;
 386 }
 387
 388 int
 389 Editor::embed_sndfiles (vector<Glib::ustring> paths, bool multifile,
 390                         bool& check_sample_rate, ImportMode mode, nframes64_t& pos, int target_regions, int target_tracks,
 391                         boost::shared_ptr<AudioTrack>& track)
 392 {
 393         boost::shared_ptr<AudioFileSource> source;
 394         SourceList sources;
 395         string linked_path;
 396         SoundFileInfo finfo;
 397         int ret = 0;
 398
 399         track_canvas.get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
 400         ARDOUR_UI::instance()->flush_pending ();
 401
 402         for (vector<Glib::ustring>::iterator p = paths.begin(); p != paths.end(); ++p) {
 403
 404                 ustring path = *p;
 405
 406                 /* lets see if we can link it into the session */
 407
 408                 linked_path = session->sound_dir();
 409                 linked_path += '/';
 410                 linked_path += Glib::path_get_basename (path);
 411
 412                 if (link (path.c_str(), linked_path.c_str()) == 0) {
 413
 414                         /* there are many reasons why link(2) might have failed.
 415                            but if it succeeds, we now have a link in the
 416                            session sound dir that will protect against
 417                            unlinking of the original path. nice.
 418                         */
 419
 420                         path = linked_path;
 421
 422                 } else {
 423
 424                         /* one possible reason is that its already linked */
 425
 426                         if (errno == EEXIST) {
 427                                 struct stat sb;
 428
 429                                 if (stat (linked_path.c_str(), &sb) == 0) {
 430                                         if (sb.st_nlink > 1) { // its a hard link, assume its the one we want
 431                                                 path = linked_path;
 432                                         }
 433                                 }
 434                         }
 435                 }
 436
 437                 /* note that we temporarily truncated _id at the colon */
 438
 439                 string error_msg;
 440
 441                 if (!AudioFileSource::get_soundfile_info (path, finfo, error_msg)) {
 442                         error << string_compose(_("Editor: cannot open file \"%1\", (%2)"), path, error_msg ) << endmsg;
 443                         goto out;
 444                 }
 445
 446                 if (check_sample_rate  && (finfo.samplerate != (int) session->frame_rate())) {
 447                         vector<string> choices;
 448
 449                         if (multifile) {
 450                                 choices.push_back (_("Cancel entire import"));
 451                                 choices.push_back (_("Don't embed it"));
 452                                 choices.push_back (_("Embed all without questions"));
 453
 454                                 Gtkmm2ext::Choice rate_choice (
 455                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"),
 456                                                         short_path (path, 40)),
 457                                         choices, false);
 458
 459                                 int resx = rate_choice.run ();
 460
 461                                 switch (resx) {
 462                                 case 0: /* stop a multi-file import */
 463                                         ret = -2;
 464                                         goto out;
 465                                 case 1: /* don't embed this one */
 466                                         ret = -1;
 467                                         goto out;
 468                                 case 2: /* do it, and the rest without asking */
 469                                         check_sample_rate = false;
 470                                         break;
 471                                 case 3: /* do it */
 472                                         break;
 473                                 default:
 474                                         ret = -2;
 475                                         goto out;
 476                                 }
 477                         } else {
 478                                 choices.push_back (_("Cancel"));
 479                                 choices.push_back (_("Embed it anyway"));
 480
 481                                 Gtkmm2ext::Choice rate_choice (
 482                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"), path),
 483                                         choices, false);
 484
 485                                 int resx = rate_choice.run ();
 486
 487                                 switch (resx) {
 488                                 case 0: /* don't import */
 489                                         ret = -1;
 490                                         goto out;
 491                                 case 1: /* do it */
 492                                         break;
 493                                 default:
 494                                         ret = -2;
 495                                         goto out;
 496                                 }
 497                         }
 498                 }
 499
 500                 track_canvas.get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
 501
 502                 for (int n = 0; n < finfo.channels; ++n) {
 503                         try {
 504
 505                                 /* check if we have this thing embedded already */
 506
 507                                 boost::shared_ptr<Source> s;
 508
 509                                 if ((s = session->source_by_path_and_channel (path, n)) == 0) {
 510                                         source = boost::dynamic_pointer_cast<AudioFileSource> (SourceFactory::createReadable
 511                                                                                                (*session, path,  n,
 512                                                                                                 (mode == ImportAsTapeTrack ?
 513                                                                                                  AudioFileSource::Destructive :
 514                                                                                                  AudioFileSource::Flag (0)),
 515                                                                                                 true, true));
 516                                 } else {
 517                                         source = boost::dynamic_pointer_cast<AudioFileSource> (s);
 518                                 }
 519
 520                                 sources.push_back(source);
 521                         }
 522
 523                         catch (failed_constructor& err) {
 524                                 error << string_compose(_("could not open %1"), path) << endmsg;
 525                                 goto out;
 526                         }
 527
 528                         ARDOUR_UI::instance()->flush_pending ();
 529                 }
 530         }
 531
 532         if (sources.empty()) {
 533                 goto out;
 534         }
 535
 536         ret = add_sources (paths, sources, pos, mode, target_regions, target_tracks, track, true);
 537
 538   out:
 539         track_canvas.get_window()->set_cursor (*current_canvas_cursor);
 540         return ret;
 541 }
 542
 543 int
 544 Editor::add_sources (vector<Glib::ustring> paths, SourceList& sources, nframes64_t& pos, ImportMode mode,
 545                      int target_regions, int target_tracks, boost::shared_ptr<AudioTrack>& track, bool add_channel_suffix)
 546 {
 547         vector<boost::shared_ptr<AudioRegion> > regions;
 548         ustring region_name;
 549         uint32_t input_chan = 0;
 550         uint32_t output_chan = 0;
 551
 552         if (pos == -1) { // "use timestamp"
 553                 if (sources[0]->natural_position() != 0) {
 554                         pos = sources[0]->natural_position();
 555                 } else {
 556                         // XXX is this the best alternative ?
 557                         pos = edit_cursor->current_frame;
 558                 }
 559         }
 560
 561         if (target_regions == 1) {
 562
 563                 /* take all the sources we have and package them up as a region */
 564
 565                 region_name = region_name_from_path (paths.front(), (sources.size() > 1), false);
 566
 567                 regions.push_back (boost::dynamic_pointer_cast<AudioRegion>
 568                                    (RegionFactory::create (sources, 0, sources[0]->length(), region_name, 0,
 569                                                            Region::Flag (Region::DefaultFlags|Region::WholeFile|Region::External))));
 570
 571         } else if (target_regions == -1) {
 572
 573                 /* take each source and create a region for each one */
 574
 575                 SourceList just_one;
 576                 SourceList::iterator x;
 577                 uint32_t n;
 578
 579                 for (n = 0, x = sources.begin(); x != sources.end(); ++x, ++n) {
 580
 581                         just_one.clear ();
 582                         just_one.push_back (*x);
 583
 584                         boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource> (*x);
 585
 586                         region_name = region_name_from_path (afs->path(), false, true, sources.size(), n);
 587
 588                         cerr << "got region name " << region_name << endl;
 589
 590                         regions.push_back (boost::dynamic_pointer_cast<AudioRegion>
 591                                            (RegionFactory::create (just_one, 0, (*x)->length(), region_name, 0,
 592                                                                    Region::Flag (Region::DefaultFlags|Region::WholeFile|Region::External))));
 593
 594                 }
 595         }
 596
 597         if (target_regions == 1) {
 598                 input_chan = regions.front()->n_channels();
 599         } else {
 600                 if (target_tracks == 1) {
 601                         input_chan = regions.size();
 602                 } else {
 603                         input_chan = 1;
 604                 }
 605         }
 606
 607         if (Config->get_output_auto_connect() & AutoConnectMaster) {
 608                 output_chan = (session->master_out() ? session->master_out()->n_inputs() : input_chan);
 609         } else {
 610                 output_chan = input_chan;
 611         }
 612
 613         int n = 0;
 614
 615         for (vector<boost::shared_ptr<AudioRegion> >::iterator r = regions.begin(); r != regions.end(); ++r, ++n) {
 616
 617                 finish_bringing_in_audio (*r, input_chan, output_chan, pos, mode, track);
 618
 619                 if (target_tracks != 1) {
 620                         track.reset ();
 621                 } else {
 622                         pos += (*r)->length();
 623                 }
 624         }
 625
 626         return 0;
 627 }
 628
 629 int
 630 Editor::finish_bringing_in_audio (boost::shared_ptr<AudioRegion> region, uint32_t in_chans, uint32_t out_chans, nframes64_t& pos,
 631                                   ImportMode mode, boost::shared_ptr<AudioTrack>& existing_track)
 632 {
 633
 634         switch (mode) {
 635         case ImportAsRegion:
 636                 /* relax, its been done */
 637                 break;
 638
 639         case ImportToTrack:
 640         {
 641                 if (!existing_track) {
 642
 643                         if (selection->tracks.empty()) {
 644                                 return -1;
 645                         }
 646
 647                         AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(selection->tracks.front());
 648
 649                         if (!atv) {
 650                                 return -1;
 651                         }
 652
 653                         existing_track = atv->audio_track();
 654                 }
 655
 656                 boost::shared_ptr<Playlist> playlist = existing_track->diskstream()->playlist();
 657                 boost::shared_ptr<AudioRegion> copy (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (region)));
 658                 begin_reversible_command (_("insert sndfile"));
 659                 XMLNode &before = playlist->get_state();
 660                 playlist->add_region (copy, pos);
 661                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
 662                 commit_reversible_command ();
 663                 break;
 664         }
 665
 666         case ImportAsTrack:
 667         {
 668                 if (!existing_track) {
 669                         list<boost::shared_ptr<AudioTrack> > at (session->new_audio_track (in_chans, out_chans, Normal, 1));
 670
 671                         if (at.empty()) {
 672                                 return -1;
 673                         }
 674
 675                         existing_track = at.front();
 676                         existing_track->set_name (region->name(), this);
 677                 }
 678
 679                 boost::shared_ptr<AudioRegion> copy (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (region)));
 680                 existing_track->diskstream()->playlist()->add_region (copy, pos);
 681                 break;
 682         }
 683
 684
 685         case ImportAsTapeTrack:
 686         {
 687                 list<boost::shared_ptr<AudioTrack> > at (session->new_audio_track (in_chans, out_chans, Destructive));
 688                 if (!at.empty()) {
 689                         boost::shared_ptr<AudioRegion> copy (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (region)));
 690                         at.front()->set_name (basename_nosuffix (copy->name()), this);
 691                         at.front()->diskstream()->playlist()->add_region (copy, pos);
 692                 }
 693                 break;
 694         }
 695         }
 696
 697         return 0;
 698 }
 699
 700 void *
 701 Editor::_import_thread (void *arg)
 702 {
 703         PBD::ThreadCreated (pthread_self(), X_("Import"));
 704
 705         Editor *ed = (Editor *) arg;
 706         return ed->import_thread ();
 707 }
 708
 709 void *
 710 Editor::import_thread ()
 711 {
 712         session->import_audiofile (import_status);
 713         pthread_exit_pbd (0);
 714         /*NOTREACHED*/
 715         return 0;
 716 }
 717
 718 gint
 719 Editor::import_progress_timeout (void *arg)
 720 {
 721         interthread_progress_label.set_text (import_status.doing_what);
 722
 723         if (import_status.freeze) {
 724                 interthread_cancel_button.set_sensitive(false);
 725         } else {
 726                 interthread_cancel_button.set_sensitive(true);
 727         }
 728
 729         if (import_status.doing_what == "building peak files") {
 730                 interthread_progress_bar.pulse ();
 731                 return FALSE;
 732         } else {
 733                 interthread_progress_bar.set_fraction (import_status.progress);
 734         }
 735
 736         return !(import_status.done || import_status.cancel);
 737 }
 738