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
 246 void Edit::set_selected(int v)
 247 {
 248         if( group_id )
 249                 edl->tracks->set_group_selected(group_id, v);
 250         else
 251                 is_selected = v >= 0 ? v : !is_selected ? 1 : 0;
 252 }
 253
 254 void Edit::copy_from(Edit *edit)
 255 {
 256         this->nested_edl = edl->nested_edls.get_nested(edit->nested_edl);
 257         this->asset = edl->assets->update(edit->asset);
 258         this->startsource = edit->startsource;
 259         this->startproject = edit->startproject;
 260         this->length = edit->length;
 261         this->hard_left = edit->hard_left;
 262         this->hard_right = edit->hard_right;
 263         this->color = edit->color;
 264         this->group_id = edit->group_id;
 265         strcpy (this->user_title, edit->user_title);
 266
 267         if(edit->transition)
 268         {
 269                 if(!transition) transition = new Transition(edl,
 270                         this,
 271                         edit->transition->title,
 272                         edit->transition->length);
 273                 *this->transition = *edit->transition;
 274         }
 275         this->channel = edit->channel;
 276 }
 277
 278 void Edit::equivalent_output(Edit *edit, int64_t *result)
 279 {
 280 // End of edit changed
 281         if(startproject + length != edit->startproject + edit->length)
 282         {
 283                 int64_t new_length = MIN(startproject + length,
 284                         edit->startproject + edit->length);
 285                 if(*result < 0 || new_length < *result)
 286                         *result = new_length;
 287         }
 288
 289         if(
 290 // Different nested EDLs
 291                 (edit->nested_edl && !nested_edl) ||
 292                 (!edit->nested_edl && nested_edl) ||
 293 // Different assets
 294                 (edit->asset == 0 && asset != 0) ||
 295                 (edit->asset != 0 && asset == 0) ||
 296 // different transitions
 297                 (edit->transition == 0 && transition != 0) ||
 298                 (edit->transition != 0 && transition == 0) ||
 299 // Position changed
 300                 (startproject != edit->startproject) ||
 301                 (startsource != edit->startsource) ||
 302 // Transition changed
 303                 (transition && edit->transition &&
 304                         !transition->identical(edit->transition)) ||
 305 // Asset changed
 306                 (asset && edit->asset &&
 307                         !asset->equivalent(*edit->asset, 1, 1, edl)) ||
 308 // Nested EDL changed
 309                 (nested_edl && edit->nested_edl &&
 310                         strcmp(nested_edl->path, edit->nested_edl->path))
 311                 )
 312         {
 313 // Start of edit changed
 314                 if(*result < 0 || startproject < *result) *result = startproject;
 315         }
 316 }
 317
 318
 319 Edit& Edit::operator=(Edit& edit)
 320 {
 321 //printf("Edit::operator= called\n");
 322         copy_from(&edit);
 323         return *this;
 324 }
 325
 326 void Edit::synchronize_params(Edit *edit)
 327 {
 328         copy_from(edit);
 329 }
 330
 331
 332 // Comparison for ResourcePixmap drawing
 333 int Edit::identical(Edit &edit)
 334 {
 335         int result = (this->nested_edl == edit.nested_edl &&
 336                 this->asset == edit.asset &&
 337                 this->startsource == edit.startsource &&
 338                 this->startproject == edit.startproject &&
 339                 this->length == edit.length &&
 340                 this->transition == edit.transition &&
 341                 this->channel == edit.channel);
 342         return result;
 343 }
 344
 345 int Edit::operator==(Edit &edit)
 346 {
 347         return identical(edit);
 348 }
 349
 350 double Edit::frames_per_picon()
 351 {
 352         return Units::round(picon_w()) / frame_w();
 353 }
 354
 355 double Edit::frame_w()
 356 {
 357         return track->from_units(1) *
 358                 edl->session->sample_rate /
 359                 edl->local_session->zoom_sample;
 360 }
 361
 362 double Edit::picon_w()
 363 {
 364         int w = 0, h = 0;
 365         if(asset) {
 366                 w = asset->width;
 367                 h = asset->height;
 368         }
 369         else if(nested_edl) {
 370                 w = nested_edl->session->output_w;
 371                 h = nested_edl->session->output_h;
 372         }
 373         return w>0 && h>0 ? ((double)edl->local_session->zoom_track*w)/h : 0;
 374 }
 375
 376 int Edit::picon_h()
 377 {
 378         return edl->local_session->zoom_track;
 379 }
 380
 381
 382 int Edit::dump(FILE *fp)
 383 {
 384         fprintf(fp,"     EDIT %p\n", this); fflush(fp);
 385         fprintf(fp,"      nested_edl=%p %s asset=%p %s\n",
 386                 nested_edl,
 387                 nested_edl ? nested_edl->path : "",
 388                 asset,
 389                 asset ? asset->path : "");
 390         fflush(fp);
 391         fprintf(fp,"      channel %d, color %08x, group_id %d, is_selected %d\n",
 392                 channel, color, group_id, is_selected);
 393         if(transition)
 394         {
 395                 fprintf(fp,"      TRANSITION %p\n", transition);
 396                 transition->dump(fp);
 397         }
 398         fprintf(fp,"      startsource %jd startproject %jd hard lt/rt %d/%d length %jd\n",
 399                 startsource, startproject, hard_left, hard_right, length); fflush(fp);
 400         return 0;
 401 }
 402
 403 int Edit::load_properties(FileXML *file, int64_t &startproject)
 404 {
 405         startsource = file->tag.get_property("STARTSOURCE", (int64_t)0);
 406         length = file->tag.get_property("LENGTH", (int64_t)0);
 407         hard_left = file->tag.get_property("HARD_LEFT", (int64_t)0);
 408         hard_right = file->tag.get_property("HARD_RIGHT", (int64_t)0);
 409         color = file->tag.get_property("COLOR", 0);
 410         group_id = file->tag.get_property("GROUP_ID", group_id);
 411         user_title[0] = 0;
 412         file->tag.get_property("USER_TITLE", user_title);
 413         this->startproject = startproject;
 414         load_properties_derived(file);
 415         return 0;
 416 }
 417
 418 void Edit::shift(int64_t difference)
 419 {
 420 //printf("Edit::shift 1 %p %jd %jd\n", this, startproject, difference);
 421         startproject += difference;
 422 //printf("Edit::shift 2 %jd %jd\n", startproject, difference);
 423 }
 424
 425 int Edit::shift_start_in(int edit_mode,
 426         int64_t newposition,
 427         int64_t oldposition,
 428         int edit_edits,
 429         int edit_labels,
 430         int edit_plugins,
 431         int edit_autos,
 432         Edits *trim_edits)
 433 {
 434         int64_t cut_length = newposition - oldposition;
 435         int64_t end_previous_source, end_source;
 436
 437         if(edit_mode == MOVE_ALL_EDITS)
 438         {
 439                 if(cut_length < length)
 440                 {        // clear partial
 441                         edits->clear_recursive(oldposition,
 442                                 newposition,
 443                                 edit_edits,
 444                                 edit_labels,
 445                                 edit_plugins,
 446                                 edit_autos,
 447                                 trim_edits);
 448                 }
 449                 else
 450                 {        // clear entire
 451                         edits->clear_recursive(oldposition,
 452                                 startproject + length,
 453                                 edit_edits,
 454                                 edit_labels,
 455                                 edit_plugins,
 456                                 edit_autos,
 457                                 trim_edits);
 458                 }
 459         }
 460         else
 461         if(edit_mode == MOVE_ONE_EDIT)
 462         {
 463 // Paste silence and cut
 464 //printf("Edit::shift_start_in 1\n");
 465                 if(!previous)
 466                 {
 467                         Edit *new_edit = edits->create_edit();
 468                         new_edit->startproject = this->startproject;
 469                         new_edit->length = 0;
 470                         edits->insert_before(this,
 471                                 new_edit);
 472                 }
 473 //printf("Edit::shift_start_in 2 %p\n", previous);
 474
 475                 end_previous_source = previous->get_source_end(previous->startsource + previous->length + cut_length);
 476                 if(end_previous_source > 0 &&
 477                         previous->startsource + previous->length + cut_length > end_previous_source)
 478                         cut_length = end_previous_source - previous->startsource - previous->length;
 479
 480                 if(cut_length < length)
 481                 {               // Move in partial
 482                         startproject += cut_length;
 483                         startsource += cut_length;
 484                         length -= cut_length;
 485                         previous->length += cut_length;
 486 //printf("Edit::shift_start_in 2\n");
 487                 }
 488                 else
 489                 {               // Clear entire edit
 490                         cut_length = length;
 491                         previous->length += cut_length;
 492                         for(Edit* current_edit = this; current_edit; current_edit = current_edit->next)
 493                         {
 494                                 current_edit->startproject += cut_length;
 495                         }
 496                         edits->clear_recursive(oldposition + cut_length,
 497                                 startproject + cut_length,
 498                                 edit_edits,
 499                                 edit_labels,
 500                                 edit_plugins,
 501                                 edit_autos,
 502                                 trim_edits);
 503                 }
 504 //printf("Edit::shift_start_in 3\n");
 505         }
 506         else
 507         if(edit_mode == MOVE_NO_EDITS)
 508         {
 509                 end_source = get_source_end(startsource + length + cut_length);
 510                 if(end_source > 0 && startsource + length + cut_length > end_source)
 511                         cut_length = end_source - startsource - length;
 512
 513                 startsource += cut_length;
 514         }
 515         return 0;
 516 }
 517
 518 int Edit::shift_start_out(int edit_mode,
 519         int64_t newposition,
 520         int64_t oldposition,
 521         int edit_edits,
 522         int edit_labels,
 523         int edit_plugins,
 524         int edit_autos,
 525         Edits *trim_edits)
 526 {
 527         int64_t cut_length = oldposition - newposition;
 528
 529
 530         if(asset || nested_edl)
 531         {
 532                 int64_t end_source = get_source_end(1);
 533
 534 //printf("Edit::shift_start_out 1 %jd %jd\n", startsource, cut_length);
 535                 if(end_source > 0 && startsource < cut_length)
 536                 {
 537                         cut_length = startsource;
 538                 }
 539         }
 540
 541         if(edit_mode == MOVE_ALL_EDITS)
 542         {
 543 //printf("Edit::shift_start_out 10 %jd\n", cut_length);
 544                 startsource -= cut_length;
 545                 length += cut_length;
 546
 547                 if(edit_autos)
 548                         edits->shift_keyframes_recursive(startproject,
 549                                 cut_length);
 550                 if(edit_plugins)
 551                         edits->shift_effects_recursive(startproject,
 552                                 cut_length,
 553                                 edit_autos);
 554
 555                 for(Edit* current_edit = next; current_edit; current_edit = current_edit->next)
 556                 {
 557                         current_edit->startproject += cut_length;
 558                 }
 559         }
 560         else
 561         if(edit_mode == MOVE_ONE_EDIT)
 562         {
 563                 if(previous)
 564                 {
 565                         if(cut_length < previous->length)
 566                         {   // Cut into previous edit
 567                                 previous->length -= cut_length;
 568                                 startproject -= cut_length;
 569                                 startsource -= cut_length;
 570                                 length += cut_length;
 571                         }
 572                         else
 573                         {   // Clear entire previous edit
 574                                 cut_length = previous->length;
 575                                 previous->length = 0;
 576                                 length += cut_length;
 577                                 startsource -= cut_length;
 578                                 startproject -= cut_length;
 579                         }
 580                 }
 581         }
 582         else
 583         if(edit_mode == MOVE_NO_EDITS)
 584         {
 585                 startsource -= cut_length;
 586         }
 587
 588 // Fix infinite length files
 589         if(startsource < 0) startsource = 0;
 590         return 0;
 591 }
 592
 593 int Edit::shift_end_in(int edit_mode,
 594         int64_t newposition,
 595         int64_t oldposition,
 596         int edit_edits,
 597         int edit_labels,
 598         int edit_plugins,
 599         int edit_autos,
 600         Edits *trim_edits)
 601 {
 602         int64_t cut_length = oldposition - newposition;
 603
 604         if(edit_mode == MOVE_ALL_EDITS)
 605         {
 606 //printf("Edit::shift_end_in 1\n");
 607                 if(newposition > startproject)
 608                 {        // clear partial edit
 609 //printf("Edit::shift_end_in %p %p\n", track->edits, edits);
 610                         edits->clear_recursive(newposition,
 611                                 oldposition,
 612                                 edit_edits,
 613                                 edit_labels,
 614                                 edit_plugins,
 615                                 edit_autos,
 616                                 trim_edits);
 617                 }
 618                 else
 619                 {        // clear entire edit
 620                         edits->clear_recursive(startproject,
 621                                 oldposition,
 622                                 edit_edits,
 623                                 edit_labels,
 624                                 edit_plugins,
 625                                 edit_autos,
 626                                 trim_edits);
 627                 }
 628         }
 629         else
 630         if(edit_mode == MOVE_ONE_EDIT)
 631         {
 632                 if(next)
 633                 {
 634                         if(next->asset)
 635                         {
 636                                 int64_t end_source = next->get_source_end(1);
 637
 638                                 if(end_source > 0 && next->startsource - cut_length < 0)
 639                                 {
 640                                         cut_length = next->startsource;
 641                                 }
 642                         }
 643
 644                         if(cut_length < length)
 645                         {
 646                                 length -= cut_length;
 647                                 next->startproject -= cut_length;
 648                                 next->startsource -= cut_length;
 649                                 next->length += cut_length;
 650 //printf("Edit::shift_end_in 2 %d\n", cut_length);
 651                         }
 652                         else
 653                         {
 654                                 cut_length = length;
 655                                 next->length += cut_length;
 656                                 next->startsource -= cut_length;
 657                                 next->startproject -= cut_length;
 658                                 length -= cut_length;
 659                         }
 660                 }
 661                 else
 662                 {
 663                         if(cut_length < length)
 664                         {
 665                                 length -= cut_length;
 666                         }
 667                         else
 668                         {
 669                                 cut_length = length;
 670                                 edits->clear_recursive(startproject,
 671                                         oldposition,
 672                                         edit_edits,
 673                                         edit_labels,
 674                                         edit_plugins,
 675                                         edit_autos,
 676                                         trim_edits);
 677                         }
 678                 }
 679         }
 680         else
 681 // Does nothing for plugins
 682         if(edit_mode == MOVE_NO_EDITS)
 683         {
 684 //printf("Edit::shift_end_in 3\n");
 685                 int64_t end_source = get_source_end(1);
 686                 if(end_source > 0 && startsource < cut_length)
 687                 {
 688                         cut_length = startsource;
 689                 }
 690                 startsource -= cut_length;
 691         }
 692         return 0;
 693 }
 694
 695 int Edit::shift_end_out(int edit_mode,
 696         int64_t newposition,
 697         int64_t oldposition,
 698         int edit_edits,
 699         int edit_labels,
 700         int edit_plugins,
 701         int edit_autos,
 702         Edits *trim_edits)
 703 {
 704         int64_t cut_length = newposition - oldposition;
 705         int64_t endsource = get_source_end(startsource + length + cut_length);
 706
 707 // check end of edit against end of source file
 708         if(endsource > 0 && startsource + length + cut_length > endsource)
 709                 cut_length = endsource - startsource - length;
 710
 711 //printf("Edit::shift_end_out 1 %jd %d %d %d\n", oldposition, newposition, this->length, cut_length);
 712         if(edit_mode == MOVE_ALL_EDITS)
 713         {
 714 // Extend length
 715                 this->length += cut_length;
 716
 717 // Effects are shifted in length extension
 718                 if(edit_plugins)
 719                         edits->shift_effects_recursive(oldposition /* startproject */,
 720                                 cut_length,
 721                                 edit_autos);
 722                 if(edit_autos)
 723                         edits->shift_keyframes_recursive(oldposition /* startproject */,
 724                                 cut_length);
 725
 726                 for(Edit* current_edit = next; current_edit; current_edit = current_edit->next)
 727                 {
 728                         current_edit->startproject += cut_length;
 729                 }
 730         }
 731         else
 732         if(edit_mode == MOVE_ONE_EDIT)
 733         {
 734                 if(next)
 735                 {
 736                         if(cut_length < next->length)
 737                         {
 738                                 length += cut_length;
 739                                 next->startproject += cut_length;
 740                                 next->startsource += cut_length;
 741                                 next->length -= cut_length;
 742 //printf("Edit::shift_end_out %d cut_length=%d\n", __LINE__, cut_length);
 743                         }
 744                         else
 745                         {
 746 //printf("Edit::shift_end_out %d cut_length=%d next->length=%d\n", __LINE__, cut_length, next->length);
 747                                 cut_length = next->length;
 748                                 next->startproject += next->length;
 749                                 next->startsource += next->length;
 750                                 next->length = 0;
 751                                 length += cut_length;
 752 //track->dump();
 753                         }
 754                 }
 755                 else
 756                 {
 757                         length += cut_length;
 758                 }
 759         }
 760         else
 761         if(edit_mode == MOVE_NO_EDITS)
 762         {
 763                 startsource += cut_length;
 764         }
 765         return 0;
 766 }
 767
 768 int Edit::popup_transition(float view_start, float zoom_units, int cursor_x, int cursor_y)
 769 {
 770         int64_t left, right, left_unit, right_unit;
 771         if(!transition) return 0;
 772         get_handle_parameters(left, right, left_unit, right_unit, view_start, zoom_units);
 773
 774         if(cursor_x > left && cursor_x < right)
 775         {
 776 //              transition->popup_transition(cursor_x, cursor_y);
 777                 return 1;
 778         }
 779         return 0;
 780 }
 781
 782 int Edit::select_handle(float view_start, float zoom_units, int cursor_x, int cursor_y, int64_t &selection)
 783 {
 784         int64_t left, right, left_unit, right_unit;
 785         get_handle_parameters(left, right, left_unit, right_unit, view_start, zoom_units);
 786
 787         int64_t pixel1, pixel2;
 788         pixel1 = left;
 789         pixel2 = pixel1 + 10;
 790
 791 // test left edit
 792 // cursor_x is faked in acanvas
 793         if(cursor_x >= pixel1 && cursor_x <= pixel2)
 794         {
 795                 selection = left_unit;
 796                 return 1;     // left handle
 797         }
 798
 799         //int64_t endproject = startproject + length;
 800         pixel2 = right;
 801         pixel1 = pixel2 - 10;
 802
 803 // test right edit
 804         if(cursor_x >= pixel1 && cursor_x <= pixel2)
 805         {
 806                 selection = right_unit;
 807                 return 2;     // right handle
 808         }
 809         return 0;
 810 }
 811
 812 void Edit::get_title(char *title)
 813 {
 814         if( user_title[0] ) {
 815                 strcpy(title, user_title);
 816                 return;
 817         }
 818         Indexable *idxbl = asset ? (Indexable*)asset : (Indexable*)nested_edl;
 819         if( !idxbl ) {
 820                 title[0] = 0;
 821                 return;
 822         }
 823         FileSystem fs;
 824         fs.extract_name(title, idxbl->path);
 825         if( asset || track->data_type == TRACK_AUDIO ) {
 826                 char number[BCSTRLEN];
 827                 sprintf(number, " #%d", channel + 1);
 828                 strcat(title, number);
 829         }
 830 }
 831