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