cinelerra-5.1/cinelerra/edit.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "asset.h"
  23 #include "assets.h"
  24 #include "bcsignals.h"
  25 #include "clip.h"
  26 #include "edit.h"
  27 #include "edits.h"
  28 #include "edl.h"
  29 #include "edlsession.h"
  30 #include "filexml.h"
  31 #include "filesystem.h"
  32 #include "localsession.h"
  33 #include "plugin.h"
  34 #include "mainsession.h"
  35 #include "strack.h"
  36 #include "trackcanvas.h"
  37 #include "tracks.h"
  38 #include "transition.h"
  39 #include <string.h>
  40
  41
  42 Edit::Edit()
  43 {
  44         reset();
  45 }
  46
  47 Edit::Edit(EDL *edl, Track *track)
  48 {
  49         reset();
  50         this->edl = edl;
  51         this->track = track;
  52         if(track) this->edits = track->edits;
  53         id = EDL::next_id();
  54 }
  55
  56 Edit::Edit(EDL *edl, Edits *edits)
  57 {
  58         reset();
  59         this->edl = edl;
  60         this->edits = edits;
  61         if(edits) this->track = edits->track;
  62         id = EDL::next_id();
  63 }
  64
  65 Edit::~Edit()
  66 {
  67 //printf("Edit::~Edit 1\n");
  68         if(transition) delete transition;
  69 //printf("Edit::~Edit 2\n");
  70 }
  71
  72 void Edit::reset()
  73 {
  74         edl = 0;
  75         track = 0;
  76         edits = 0;
  77         startsource = 0;
  78         startproject = 0;
  79         length = 0;
  80         asset = 0;
  81         transition = 0;
  82         channel = 0;
  83         user_title[0] = 0;
  84         nested_edl = 0;
  85         is_plugin = 0;
  86         is_selected = 0;
  87         hard_left = 0;
  88         hard_right = 0;
  89         color = 0;
  90         group_id = 0;
  91 }
  92
  93 Indexable* Edit::get_source()
  94 {
  95         if(asset) return asset;
  96         if(nested_edl) return nested_edl;
  97         return 0;
  98 }
  99
 100 int Edit::copy(int64_t start,
 101         int64_t end,
 102         FileXML *file,
 103         const char *output_path)
 104 {
 105 // variables
 106 //printf("Edit::copy 1\n");
 107
 108         int64_t endproject = startproject + length;
 109         int result;
 110
 111         if((startproject >= start && startproject <= end) ||  // startproject in range
 112                  (endproject <= end && endproject >= start) ||     // endproject in range
 113                  (startproject <= start && endproject >= end))    // range in project
 114         {
 115 // edit is in range
 116                 int64_t startproject_in_selection = startproject; // start of edit in selection in project
 117                 int64_t startsource_in_selection = startsource; // start of source in selection in source
 118                 //int64_t endsource_in_selection = startsource + length; // end of source in selection
 119                 int64_t length_in_selection = length;             // length of edit in selection
 120 //printf("Edit::copy 2\n");
 121
 122                 if(startproject < start)
 123                 {         // start is after start of edit in project
 124                         int64_t length_difference = start - startproject;
 125
 126                         startsource_in_selection += length_difference;
 127                         startproject_in_selection += length_difference;
 128                         length_in_selection -= length_difference;
 129                 }
 130 //printf("Edit::copy 3\n");
 131
 132                 if(endproject > end)
 133                 {         // end is before end of edit in project
 134                         length_in_selection = end - startproject_in_selection;
 135                 }
 136
 137 //printf("Edit::copy 4\n");
 138                 if(file)    // only if not counting
 139                 {
 140                         file->tag.set_title("EDIT");
 141                         file->tag.set_property("STARTSOURCE", startsource_in_selection);
 142                         file->tag.set_property("CHANNEL", (int64_t)channel);
 143                         file->tag.set_property("LENGTH", length_in_selection);
 144                         file->tag.set_property("HARD_LEFT", hard_left);
 145                         file->tag.set_property("HARD_RIGHT", hard_right);
 146                         file->tag.set_property("COLOR", color);
 147                         file->tag.set_property("GROUP_ID", group_id);
 148                         if(user_title[0]) file->tag.set_property("USER_TITLE", user_title);
 149 //printf("Edit::copy 5\n");
 150
 151                         copy_properties_derived(file, length_in_selection);
 152
 153                         file->append_tag();
 154 //                      file->append_newline();
 155 //printf("Edit::copy 6\n");
 156
 157                         if(nested_edl)
 158                         {
 159                                 file->tag.set_title("NESTED_EDL");
 160                                 file->tag.set_property("SRC", nested_edl->path);
 161                                 file->append_tag();
 162                                 file->tag.set_title("/NESTED_EDL");
 163                                 file->append_tag();
 164                                 file->append_newline();
 165                         }
 166
 167                         if(asset)
 168                         {
 169 //printf("Edit::copy 6 %s\n", asset->path);
 170                                 char stored_path[BCTEXTLEN];
 171                                 char asset_directory[BCTEXTLEN];
 172                                 char output_directory[BCTEXTLEN];
 173                                 FileSystem fs;
 174
 175 //printf("Edit::copy %d %s\n", __LINE__, asset->path);
 176                                 fs.extract_dir(asset_directory, asset->path);
 177 //printf("Edit::copy %d %s\n", __LINE__, asset->path);
 178
 179                                 if(output_path)
 180                                         fs.extract_dir(output_directory, output_path);
 181                                 else
 182                                         output_directory[0] = 0;
 183 //printf("Edit::copy %s, %s %s, %s\n", asset->path, asset_directory, output_path, output_directory);
 184
 185                                 if(output_path && !strcmp(asset_directory, output_directory))
 186                                         fs.extract_name(stored_path, asset->path);
 187                                 else
 188                                         strcpy(stored_path, asset->path);
 189
 190                                 file->tag.set_title("FILE");
 191                                 file->tag.set_property("SRC", stored_path);
 192                                 file->append_tag();
 193                                 file->tag.set_title("/FILE");
 194                                 file->append_tag();
 195                         }
 196
 197                         if(transition && startsource_in_selection == startsource)
 198                         {
 199                                 transition->save_xml(file);
 200                         }
 201
 202 //printf("Edit::copy 7\n");
 203                         file->tag.set_title("/EDIT");
 204                         file->append_tag();
 205                         file->append_newline();
 206 //printf("Edit::copy 8\n");
 207                 }
 208 //printf("Edit::copy 9\n");
 209                 result = 1;
 210         }
 211         else
 212         {
 213                 result = 0;
 214         }
 215 //printf("Edit::copy 10\n");
 216         return result;
 217 }
 218
 219
 220 int64_t Edit::get_source_end(int64_t default_)
 221 {
 222         return default_;
 223 }
 224
 225 void Edit::insert_transition(char *title)
 226 {
 227 //printf("Edit::insert_transition this=%p title=%p title=%s\n", this, title, title);
 228         delete transition;
 229         transition = new Transition(edl, this, title,
 230                 track->to_units(edl->session->default_transition_length, 1));
 231 }
 232
 233 void Edit::detach_transition()
 234 {
 235         if(transition) delete transition;
 236         transition = 0;
 237 }
 238
 239 int Edit::silence()
 240 {
 241         return (track->data_type != TRACK_SUBTITLE ?
 242                 asset || nested_edl :
 243                 *((SEdit *)this)->get_text()) ? 0 : 1;
 244 }
 245 void Edit::mute()
 246 {
 247         if( track->data_type != TRACK_SUBTITLE ) {
 248                 asset = 0;
 249                 nested_edl = 0;
 250         }
 251         else
 252                 *((SEdit *)this)->get_text() = 0;
 253 }
 254
 255 void Edit::set_selected(int v)
 256 {
 257         if( group_id )
 258                 edl->tracks->set_group_selected(group_id, v);
 259         else
 260                 is_selected = v >= 0 ? v : !is_selected ? 1 : 0;
 261 }
 262
 263 void Edit::copy_from(Edit *edit)
 264 {
 265         this->nested_edl = edl->nested_edls.get_nested(edit->nested_edl);
 266         this->asset = edl->assets->update(edit->asset);
 267         this->startsource = edit->startsource;
 268         this->startproject = edit->startproject;
 269         this->length = edit->length;
 270         this->hard_left = edit->hard_left;
 271         this->hard_right = edit->hard_right;
 272         this->color = edit->color;
 273         this->group_id = edit->group_id;
 274         strcpy (this->user_title, edit->user_title);
 275
 276         if(edit->transition)
 277         {
 278                 if(!transition) transition = new Transition(edl,
 279                         this,
 280                         edit->transition->title,
 281                         edit->transition->length);
 282                 *this->transition = *edit->transition;
 283         }
 284         this->channel = edit->channel;
 285 }
 286
 287 void Edit::equivalent_output(Edit *edit, int64_t *result)
 288 {
 289 // End of edit changed
 290         if(startproject + length != edit->startproject + edit->length)
 291         {
 292                 int64_t new_length = MIN(startproject + length,
 293                         edit->startproject + edit->length);
 294                 if(*result < 0 || new_length < *result)
 295                         *result = new_length;
 296         }
 297
 298         if(
 299 // Different nested EDLs
 300                 (edit->nested_edl && !nested_edl) ||
 301                 (!edit->nested_edl && nested_edl) ||
 302 // Different assets
 303                 (edit->asset == 0 && asset != 0) ||
 304                 (edit->asset != 0 && asset == 0) ||
 305 // different transitions
 306                 (edit->transition == 0 && transition != 0) ||
 307                 (edit->transition != 0 && transition == 0) ||
 308 // Position changed
 309                 (startproject != edit->startproject) ||
 310                 (startsource != edit->startsource) ||
 311 // Transition changed
 312                 (transition && edit->transition &&
 313                         !transition->identical(edit->transition)) ||
 314 // Asset changed
 315                 (asset && edit->asset &&
 316                         !asset->equivalent(*edit->asset, 1, 1, edl)) ||
 317 // Nested EDL changed
 318                 (nested_edl && edit->nested_edl &&
 319                         strcmp(nested_edl->path, edit->nested_edl->path))
 320                 )
 321         {
 322 // Start of edit changed
 323                 if(*result < 0 || startproject < *result) *result = startproject;
 324         }
 325 }
 326
 327
 328 Edit& Edit::operator=(Edit& edit)
 329 {
 330 //printf("Edit::operator= called\n");
 331         copy_from(&edit);
 332         return *this;
 333 }
 334
 335 void Edit::synchronize_params(Edit *edit)
 336 {
 337         copy_from(edit);
 338 }
 339
 340
 341 // Comparison for ResourcePixmap drawing
 342 int Edit::identical(Edit &edit)
 343 {
 344         int result = (this->nested_edl == edit.nested_edl &&
 345                 this->asset == edit.asset &&
 346                 this->startsource == edit.startsource &&
 347                 this->startproject == edit.startproject &&
 348                 this->length == edit.length &&
 349                 this->transition == edit.transition &&
 350                 this->channel == edit.channel);
 351         return result;
 352 }
 353
 354 int Edit::operator==(Edit &edit)
 355 {
 356         return identical(edit);
 357 }
 358
 359 double Edit::frames_per_picon()
 360 {
 361         return Units::round(picon_w()) / frame_w();
 362 }
 363
 364 double Edit::frame_w()
 365 {
 366         return track->from_units(1) *
 367                 edl->session->sample_rate /
 368                 edl->local_session->zoom_sample;
 369 }
 370
 371 double Edit::picon_w()
 372 {
 373         int w = 0, h = 0;
 374         if(asset) {
 375                 w = asset->width;
 376                 h = asset->height;
 377         }
 378         else if(nested_edl) {
 379                 w = nested_edl->session->output_w;
 380                 h = nested_edl->session->output_h;
 381         }
 382         return w>0 && h>0 ? ((double)edl->local_session->zoom_track*w)/h : 0;
 383 }
 384
 385 int Edit::picon_h()
 386 {
 387         return edl->local_session->zoom_track;
 388 }
 389
 390
 391 int Edit::dump(FILE *fp)
 392 {
 393         fprintf(fp,"     EDIT %p\n", this); fflush(fp);
 394         fprintf(fp,"      nested_edl=%p %s asset=%p %s\n",
 395                 nested_edl,
 396                 nested_edl ? nested_edl->path : "",
 397                 asset,
 398                 asset ? asset->path : "");
 399         fflush(fp);
 400         fprintf(fp,"      channel %d, color %08x, group_id %d, is_selected %d\n",
 401                 channel, color, group_id, is_selected);
 402         if(transition)
 403         {
 404                 fprintf(fp,"      TRANSITION %p\n", transition);
 405                 transition->dump(fp);
 406         }
 407         fprintf(fp,"      startsource %jd startproject %jd hard lt/rt %d/%d length %jd\n",
 408                 startsource, startproject, hard_left, hard_right, length); fflush(fp);
 409         return 0;
 410 }
 411
 412 int Edit::load_properties(FileXML *file, int64_t &startproject)
 413 {
 414         startsource = file->tag.get_property("STARTSOURCE", (int64_t)0);
 415         length = file->tag.get_property("LENGTH", (int64_t)0);
 416         hard_left = file->tag.get_property("HARD_LEFT", (int64_t)0);
 417         hard_right = file->tag.get_property("HARD_RIGHT", (int64_t)0);
 418         color = file->tag.get_property("COLOR", 0);
 419         group_id = file->tag.get_property("GROUP_ID", group_id);
 420         user_title[0] = 0;
 421         file->tag.get_property("USER_TITLE", user_title);
 422         this->startproject = startproject;
 423         load_properties_derived(file);
 424         return 0;
 425 }
 426
 427 void Edit::shift(int64_t difference)
 428 {
 429 //printf("Edit::shift 1 %p %jd %jd\n", this, startproject, difference);
 430         startproject += difference;
 431 //printf("Edit::shift 2 %jd %jd\n", startproject, difference);
 432 }
 433
 434 int Edit::shift_start_in(int edit_mode,
 435         int64_t newposition,
 436         int64_t oldposition,
 437         int edit_edits,
 438         int edit_labels,
 439         int edit_plugins,
 440         int edit_autos,
 441         Edits *trim_edits)
 442 {
 443         int64_t cut_length = newposition - oldposition;
 444         int64_t end_previous_source, end_source;
 445
 446         if(edit_mode == MOVE_ALL_EDITS)
 447         {
 448                 if(cut_length < length)
 449                 {        // clear partial
 450                         edits->clear_recursive(oldposition,
 451                                 newposition,
 452                                 edit_edits,
 453                                 edit_labels,
 454                                 edit_plugins,
 455                                 edit_autos,
 456                                 trim_edits);
 457                 }
 458                 else
 459                 {        // clear entire
 460                         edits->clear_recursive(oldposition,
 461                                 startproject + length,
 462                                 edit_edits,
 463                                 edit_labels,
 464                                 edit_plugins,
 465                                 edit_autos,
 466                                 trim_edits);
 467                 }
 468         }
 469         else
 470         if(edit_mode == MOVE_ONE_EDIT)
 471         {
 472 // Paste silence and cut
 473 //printf("Edit::shift_start_in 1\n");
 474                 if(!previous)
 475                 {
 476                         Edit *new_edit = edits->create_edit();
 477                         new_edit->startproject = this->startproject;
 478                         new_edit->length = 0;
 479                         edits->insert_before(this,
 480                                 new_edit);
 481                 }
 482 //printf("Edit::shift_start_in 2 %p\n", previous);
 483
 484                 end_previous_source = previous->get_source_end(previous->startsource + previous->length + cut_length);
 485                 if(end_previous_source > 0 &&
 486                         previous->startsource + previous->length + cut_length > end_previous_source)
 487                         cut_length = end_previous_source - previous->startsource - previous->length;
 488
 489                 if(cut_length < length)
 490                 {               // Move in partial
 491                         startproject += cut_length;
 492                         startsource += cut_length;
 493                         length -= cut_length;
 494                         previous->length += cut_length;
 495 //printf("Edit::shift_start_in 2\n");
 496                 }
 497                 else
 498                 {               // Clear entire edit
 499                         cut_length = length;
 500                         previous->length += cut_length;
 501                         for(Edit* current_edit = this; current_edit; current_edit = current_edit->next)
 502                         {
 503                                 current_edit->startproject += cut_length;
 504                         }
 505                         edits->clear_recursive(oldposition + cut_length,
 506                                 startproject + cut_length,
 507                                 edit_edits,
 508                                 edit_labels,
 509                                 edit_plugins,
 510                                 edit_autos,
 511                                 trim_edits);
 512                 }
 513 //printf("Edit::shift_start_in 3\n");
 514         }
 515         else
 516         if(edit_mode == MOVE_NO_EDITS)
 517         {
 518                 end_source = get_source_end(startsource + length + cut_length);
 519                 if(end_source > 0 && startsource + length + cut_length > end_source)
 520                         cut_length = end_source - startsource - length;
 521
 522                 startsource += cut_length;
 523         }
 524         return 0;
 525 }
 526
 527 int Edit::shift_start_out(int edit_mode,
 528         int64_t newposition,
 529         int64_t oldposition,
 530         int edit_edits,
 531         int edit_labels,
 532         int edit_plugins,
 533         int edit_autos,
 534         Edits *trim_edits)
 535 {
 536         int64_t cut_length = oldposition - newposition;
 537
 538
 539         if(asset || nested_edl)
 540         {
 541                 int64_t end_source = get_source_end(1);
 542
 543 //printf("Edit::shift_start_out 1 %jd %jd\n", startsource, cut_length);
 544                 if(end_source > 0 && startsource < cut_length)
 545                 {
 546                         cut_length = startsource;
 547                 }
 548         }
 549
 550         if(edit_mode == MOVE_ALL_EDITS)
 551         {
 552 //printf("Edit::shift_start_out 10 %jd\n", cut_length);
 553                 startsource -= cut_length;
 554                 length += cut_length;
 555
 556                 if(edit_autos)
 557                         edits->shift_keyframes_recursive(startproject,
 558                                 cut_length);
 559                 if(edit_plugins)
 560                         edits->shift_effects_recursive(startproject,
 561                                 cut_length,
 562                                 edit_autos);
 563
 564                 for(Edit* current_edit = next; current_edit; current_edit = current_edit->next)
 565                 {
 566                         current_edit->startproject += cut_length;
 567                 }
 568         }
 569         else
 570         if(edit_mode == MOVE_ONE_EDIT)
 571         {
 572                 if(previous)
 573                 {
 574                         if(cut_length < previous->length)
 575                         {   // Cut into previous edit
 576                                 previous->length -= cut_length;
 577                                 startproject -= cut_length;
 578                                 startsource -= cut_length;
 579                                 length += cut_length;
 580                         }
 581                         else
 582                         {   // Clear entire previous edit
 583                                 cut_length = previous->length;
 584                                 previous->length = 0;
 585                                 length += cut_length;
 586                                 startsource -= cut_length;
 587                                 startproject -= cut_length;
 588                         }
 589                 }
 590         }
 591         else
 592         if(edit_mode == MOVE_NO_EDITS)
 593         {
 594                 startsource -= cut_length;
 595         }
 596
 597 // Fix infinite length files
 598         if(startsource < 0) startsource = 0;
 599         return 0;
 600 }
 601
 602 int Edit::shift_end_in(int edit_mode,
 603         int64_t newposition,
 604         int64_t oldposition,
 605         int edit_edits,
 606         int edit_labels,
 607         int edit_plugins,
 608         int edit_autos,
 609         Edits *trim_edits)
 610 {
 611         int64_t cut_length = oldposition - newposition;
 612
 613         if(edit_mode == MOVE_ALL_EDITS)
 614         {
 615 //printf("Edit::shift_end_in 1\n");
 616                 if(newposition > startproject)
 617                 {        // clear partial edit
 618 //printf("Edit::shift_end_in %p %p\n", track->edits, edits);
 619                         edits->clear_recursive(newposition,
 620                                 oldposition,
 621                                 edit_edits,
 622                                 edit_labels,
 623                                 edit_plugins,
 624                                 edit_autos,
 625                                 trim_edits);
 626                 }
 627                 else
 628                 {        // clear entire edit
 629                         edits->clear_recursive(startproject,
 630                                 oldposition,
 631                                 edit_edits,
 632                                 edit_labels,
 633                                 edit_plugins,
 634                                 edit_autos,
 635                                 trim_edits);
 636                 }
 637         }
 638         else
 639         if(edit_mode == MOVE_ONE_EDIT)
 640         {
 641                 if(next)
 642                 {
 643                         if(next->asset)
 644                         {
 645                                 int64_t end_source = next->get_source_end(1);
 646
 647                                 if(end_source > 0 && next->startsource - cut_length < 0)
 648                                 {
 649                                         cut_length = next->startsource;
 650                                 }
 651                         }
 652
 653                         if(cut_length < length)
 654                         {
 655                                 length -= cut_length;
 656                                 next->startproject -= cut_length;
 657                                 next->startsource -= cut_length;
 658                                 next->length += cut_length;
 659 //printf("Edit::shift_end_in 2 %d\n", cut_length);
 660                         }
 661                         else
 662                         {
 663                                 cut_length = length;
 664                                 next->length += cut_length;
 665                                 next->startsource -= cut_length;
 666                                 next->startproject -= cut_length;
 667                                 length -= cut_length;
 668                         }
 669                 }
 670                 else
 671                 {
 672                         if(cut_length < length)
 673                         {
 674                                 length -= cut_length;
 675                         }
 676                         else
 677                         {
 678                                 cut_length = length;
 679                                 edits->clear_recursive(startproject,
 680                                         oldposition,
 681                                         edit_edits,
 682                                         edit_labels,
 683                                         edit_plugins,
 684                                         edit_autos,
 685                                         trim_edits);
 686                         }
 687                 }
 688         }
 689         else
 690 // Does nothing for plugins
 691         if(edit_mode == MOVE_NO_EDITS)
 692         {
 693 //printf("Edit::shift_end_in 3\n");
 694                 int64_t end_source = get_source_end(1);
 695                 if(end_source > 0 && startsource < cut_length)
 696                 {
 697                         cut_length = startsource;
 698                 }
 699                 startsource -= cut_length;
 700         }
 701         return 0;
 702 }
 703
 704 int Edit::shift_end_out(int edit_mode,
 705         int64_t newposition,
 706         int64_t oldposition,
 707         int edit_edits,
 708         int edit_labels,
 709         int edit_plugins,
 710         int edit_autos,
 711         Edits *trim_edits)
 712 {
 713         int64_t cut_length = newposition - oldposition;
 714         int64_t endsource = get_source_end(startsource + length + cut_length);
 715
 716 // check end of edit against end of source file
 717         if(endsource > 0 && startsource + length + cut_length > endsource)
 718                 cut_length = endsource - startsource - length;
 719
 720 //printf("Edit::shift_end_out 1 %jd %d %d %d\n", oldposition, newposition, this->length, cut_length);
 721         if(edit_mode == MOVE_ALL_EDITS)
 722         {
 723 // Extend length
 724                 this->length += cut_length;
 725
 726 // Effects are shifted in length extension
 727                 if(edit_plugins)
 728                         edits->shift_effects_recursive(oldposition /* startproject */,
 729                                 cut_length,
 730                                 edit_autos);
 731                 if(edit_autos)
 732                         edits->shift_keyframes_recursive(oldposition /* startproject */,
 733                                 cut_length);
 734
 735                 for(Edit* current_edit = next; current_edit; current_edit = current_edit->next)
 736                 {
 737                         current_edit->startproject += cut_length;
 738                 }
 739         }
 740         else
 741         if(edit_mode == MOVE_ONE_EDIT)
 742         {
 743                 if(next)
 744                 {
 745                         if(cut_length < next->length)
 746                         {
 747                                 length += cut_length;
 748                                 next->startproject += cut_length;
 749                                 next->startsource += cut_length;
 750                                 next->length -= cut_length;
 751 //printf("Edit::shift_end_out %d cut_length=%d\n", __LINE__, cut_length);
 752                         }
 753                         else
 754                         {
 755 //printf("Edit::shift_end_out %d cut_length=%d next->length=%d\n", __LINE__, cut_length, next->length);
 756                                 cut_length = next->length;
 757                                 next->startproject += next->length;
 758                                 next->startsource += next->length;
 759                                 next->length = 0;
 760                                 length += cut_length;
 761 //track->dump();
 762                         }
 763                 }
 764                 else
 765                 {
 766                         length += cut_length;
 767                 }
 768         }
 769         else
 770         if(edit_mode == MOVE_NO_EDITS)
 771         {
 772                 startsource += cut_length;
 773         }
 774         return 0;
 775 }
 776
 777 int Edit::popup_transition(float view_start, float zoom_units, int cursor_x, int cursor_y)
 778 {
 779         int64_t left, right, left_unit, right_unit;
 780         if(!transition) return 0;
 781         get_handle_parameters(left, right, left_unit, right_unit, view_start, zoom_units);
 782
 783         if(cursor_x > left && cursor_x < right)
 784         {
 785 //              transition->popup_transition(cursor_x, cursor_y);
 786                 return 1;
 787         }
 788         return 0;
 789 }
 790
 791 int Edit::select_handle(float view_start, float zoom_units, int cursor_x, int cursor_y, int64_t &selection)
 792 {
 793         int64_t left, right, left_unit, right_unit;
 794         get_handle_parameters(left, right, left_unit, right_unit, view_start, zoom_units);
 795
 796         int64_t pixel1, pixel2;
 797         pixel1 = left;
 798         pixel2 = pixel1 + 10;
 799
 800 // test left edit
 801 // cursor_x is faked in acanvas
 802         if(cursor_x >= pixel1 && cursor_x <= pixel2)
 803         {
 804                 selection = left_unit;
 805                 return 1;     // left handle
 806         }
 807
 808         //int64_t endproject = startproject + length;
 809         pixel2 = right;
 810         pixel1 = pixel2 - 10;
 811
 812 // test right edit
 813         if(cursor_x >= pixel1 && cursor_x <= pixel2)
 814         {
 815                 selection = right_unit;
 816                 return 2;     // right handle
 817         }
 818         return 0;
 819 }
 820
 821 void Edit::get_title(char *title)
 822 {
 823         if( user_title[0] ) {
 824                 strcpy(title, user_title);
 825                 return;
 826         }
 827         Indexable *idxbl = asset ? (Indexable*)asset : (Indexable*)nested_edl;
 828         if( !idxbl ) {
 829                 title[0] = 0;
 830                 return;
 831         }
 832         FileSystem fs;
 833         fs.extract_name(title, idxbl->path);
 834         if( asset || track->data_type == TRACK_AUDIO ) {
 835                 char number[BCSTRLEN];
 836                 sprintf(number, " #%d", channel + 1);
 837                 strcat(title, number);
 838         }
 839 }
 840