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 "labels.h"
  33 #include "localsession.h"
  34 #include "plugin.h"
  35 #include "mainsession.h"
  36 #include "strack.h"
  37 #include "trackcanvas.h"
  38 #include "tracks.h"
  39 #include "transition.h"
  40 #include <string.h>
  41
  42
  43 Edit::Edit()
  44 {
  45         reset();
  46 }
  47
  48 Edit::Edit(EDL *edl, Track *track)
  49 {
  50         reset();
  51         this->edl = edl;
  52         this->track = track;
  53         if(track) this->edits = track->edits;
  54         id = EDL::next_id();
  55         orig_id = id;
  56 }
  57
  58 Edit::Edit(EDL *edl, Edits *edits)
  59 {
  60         reset();
  61         this->edl = edl;
  62         this->edits = edits;
  63         if(edits) this->track = edits->track;
  64         id = EDL::next_id();
  65         orig_id = id;
  66 }
  67
  68 Edit::~Edit()
  69 {
  70 //printf("Edit::~Edit 1\n");
  71         if(transition) delete transition;
  72 //printf("Edit::~Edit 2\n");
  73 }
  74
  75 void Edit::reset()
  76 {
  77         edl = 0;
  78         track = 0;
  79         edits = 0;
  80         startsource = 0;
  81         startproject = 0;
  82         length = 0;
  83         asset = 0;
  84         transition = 0;
  85         channel = 0;
  86         user_title[0] = 0;
  87         nested_edl = 0;
  88         is_selected = 0;
  89         hard_left = 0;
  90         hard_right = 0;
  91         color = 0;
  92         group_id = 0;
  93 }
  94
  95 Indexable* Edit::get_source()
  96 {
  97         if(asset) return asset;
  98         if(nested_edl) return nested_edl;
  99         return 0;
 100 }
 101
 102 int Edit::copy(int64_t start,
 103         int64_t end,
 104         FileXML *file,
 105         const char *output_path)
 106 {
 107 // variables
 108 //printf("Edit::copy 1\n");
 109
 110         int64_t endproject = startproject + length;
 111         int result;
 112
 113         if((startproject >= start && startproject <= end) ||  // startproject in range
 114                  (endproject <= end && endproject >= start) ||     // endproject in range
 115                  (startproject <= start && endproject >= end))    // range in project
 116         {
 117 // edit is in range
 118                 int64_t startproject_in_selection = startproject; // start of edit in selection in project
 119                 int64_t startsource_in_selection = startsource; // start of source in selection in source
 120                 //int64_t endsource_in_selection = startsource + length; // end of source in selection
 121                 int64_t length_in_selection = length;             // length of edit in selection
 122 //printf("Edit::copy 2\n");
 123
 124                 if(startproject < start)
 125                 {         // start is after start of edit in project
 126                         int64_t length_difference = start - startproject;
 127
 128                         startsource_in_selection += length_difference;
 129                         startproject_in_selection += length_difference;
 130                         length_in_selection -= length_difference;
 131                 }
 132 //printf("Edit::copy 3\n");
 133
 134                 if(endproject > end)
 135                 {         // end is before end of edit in project
 136                         length_in_selection = end - startproject_in_selection;
 137                 }
 138
 139 //printf("Edit::copy 4\n");
 140                 if(file)    // only if not counting
 141                 {
 142                         file->tag.set_title("EDIT");
 143                         file->tag.set_property("STARTSOURCE", startsource_in_selection);
 144                         file->tag.set_property("CHANNEL", (int64_t)channel);
 145                         file->tag.set_property("LENGTH", length_in_selection);
 146                         file->tag.set_property("HARD_LEFT", hard_left);
 147                         file->tag.set_property("HARD_RIGHT", hard_right);
 148                         file->tag.set_property("COLOR", color);
 149                         file->tag.set_property("GROUP_ID", group_id);
 150                         if(user_title[0]) file->tag.set_property("USER_TITLE", user_title);
 151 //printf("Edit::copy 5\n");
 152
 153                         copy_properties_derived(file, length_in_selection);
 154
 155                         file->append_tag();
 156 //                      file->append_newline();
 157 //printf("Edit::copy 6\n");
 158
 159                         if(nested_edl)
 160                         {
 161                                 file->tag.set_title("NESTED_EDL");
 162                                 file->tag.set_property("SRC", nested_edl->path);
 163                                 file->append_tag();
 164                                 file->tag.set_title("/NESTED_EDL");
 165                                 file->append_tag();
 166                                 file->append_newline();
 167                         }
 168
 169                         if(asset)
 170                         {
 171 //printf("Edit::copy 6 %s\n", asset->path);
 172                                 char stored_path[BCTEXTLEN];
 173                                 char asset_directory[BCTEXTLEN];
 174                                 char output_directory[BCTEXTLEN];
 175                                 FileSystem fs;
 176
 177 //printf("Edit::copy %d %s\n", __LINE__, asset->path);
 178                                 fs.extract_dir(asset_directory, asset->path);
 179 //printf("Edit::copy %d %s\n", __LINE__, asset->path);
 180
 181                                 if(output_path)
 182                                         fs.extract_dir(output_directory, output_path);
 183                                 else
 184                                         output_directory[0] = 0;
 185 //printf("Edit::copy %s, %s %s, %s\n", asset->path, asset_directory, output_path, output_directory);
 186
 187                                 if(output_path && !strcmp(asset_directory, output_directory))
 188                                         fs.extract_name(stored_path, asset->path);
 189                                 else
 190                                         strcpy(stored_path, asset->path);
 191
 192                                 file->tag.set_title("FILE");
 193                                 file->tag.set_property("SRC", stored_path);
 194                                 file->append_tag();
 195                                 file->tag.set_title("/FILE");
 196                                 file->append_tag();
 197                         }
 198
 199                         if(transition && startsource_in_selection == startsource)
 200                         {
 201                                 transition->save_xml(file);
 202                         }
 203
 204 //printf("Edit::copy 7\n");
 205                         file->tag.set_title("/EDIT");
 206                         file->append_tag();
 207                         file->append_newline();
 208 //printf("Edit::copy 8\n");
 209                 }
 210 //printf("Edit::copy 9\n");
 211                 result = 1;
 212         }
 213         else
 214         {
 215                 result = 0;
 216         }
 217 //printf("Edit::copy 10\n");
 218         return result;
 219 }
 220
 221
 222 int64_t Edit::get_source_end(int64_t default_)
 223 {
 224         return default_;
 225 }
 226
 227 void Edit::insert_transition(char *title)
 228 {
 229 //printf("Edit::insert_transition this=%p title=%p title=%s\n", this, title, title);
 230         delete transition;
 231         transition = new Transition(edl, this, title,
 232                 track->to_units(edl->session->default_transition_length, 1));
 233 }
 234
 235 void Edit::detach_transition()
 236 {
 237         delete transition;
 238         transition = 0;
 239         if( edl->local_session->gang_tracks == GANG_NONE ) return;
 240         double pos = track->from_units(startproject);
 241         Track *current = edl->tracks->first;
 242         for( ; current; current=current->next ) {
 243                 if( current == track ) continue;
 244                 if( current->data_type != track->data_type ) continue;
 245                 if( !current->armed_gang(track) ) continue;
 246                 int64_t track_pos = current->to_units(pos, 1);
 247                 Edit *edit = current->edits->editof(track_pos, PLAY_FORWARD, 0);
 248                 if( !edit ) continue;
 249                 double edit_pos = track->from_units(edit->startproject);
 250                 if( !edl->equivalent(pos, edit_pos) ) continue;
 251                 delete edit->transition;
 252                 edit->transition = 0;
 253         }
 254 }
 255
 256 int Edit::silence()
 257 {
 258         return (track->data_type != TRACK_SUBTITLE ?
 259                 asset || nested_edl :
 260                 *((SEdit *)this)->get_text()) ? 0 : 1;
 261 }
 262
 263 void Edit::set_selected(int v)
 264 {
 265         if( !group_id ) {
 266                 if( v < 0 ) v = !is_selected ? 1 : 0;
 267                 int gang = edl->local_session->gang_tracks != GANG_NONE ? 1 : 0;
 268                 select_affected_edits(v, gang);
 269         }
 270         else
 271                 edl->tracks->set_group_selected(group_id, v);
 272 }
 273
 274 // gang<0: rest of tracks, gang==0: this track, gang>0: to next master
 275 void Edit::select_affected_edits(int v, int gang)
 276 {
 277         is_selected = v;
 278         if( !gang ) return;
 279         double position = track->from_units(startproject);
 280         for( Track *current=track->next; current; current=current->next ) {
 281                 if( gang > 0 && current->master ) break;
 282                 if( !current->is_armed() ) continue;
 283                 for( Edit *edit=current->edits->first; edit; edit=edit->next ) {
 284                         if( edit->silence() ) continue;
 285                         double start = current->from_units(edit->startproject);
 286                         if( edl->equivalent(start, position) ) {
 287                                 edit->is_selected = v;
 288                                 break;
 289                         }
 290                 }
 291         }
 292 }
 293
 294
 295 void Edit::copy_from(Edit *edit)
 296 {
 297         this->orig_id = edit->orig_id;
 298         this->nested_edl = edl->nested_edls.get_nested(edit->nested_edl);
 299         this->asset = edl->assets->update(edit->asset);
 300         this->startsource = edit->startsource;
 301         this->startproject = edit->startproject;
 302         this->length = edit->length;
 303         this->hard_left = edit->hard_left;
 304         this->hard_right = edit->hard_right;
 305         this->color = edit->color;
 306         this->group_id = edit->group_id;
 307         strcpy (this->user_title, edit->user_title);
 308
 309         if(edit->transition)
 310         {
 311                 if(!transition) transition = new Transition(edl,
 312                         this,
 313                         edit->transition->title,
 314                         edit->transition->length);
 315                 *this->transition = *edit->transition;
 316         }
 317         this->channel = edit->channel;
 318 }
 319
 320 void Edit::clone_from(Edit *edit)
 321 {
 322         copy_from(edit);
 323         edit->orig_id = edit->id;
 324 }
 325
 326 void Edit::equivalent_output(Edit *edit, int64_t *result)
 327 {
 328 // End of edit changed
 329         if(startproject + length != edit->startproject + edit->length)
 330         {
 331                 int64_t new_length = MIN(startproject + length,
 332                         edit->startproject + edit->length);
 333                 if(*result < 0 || new_length < *result)
 334                         *result = new_length;
 335         }
 336
 337         if(
 338 // Different nested EDLs
 339                 (edit->nested_edl && !nested_edl) ||
 340                 (!edit->nested_edl && nested_edl) ||
 341 // Different assets
 342                 (edit->asset == 0 && asset != 0) ||
 343                 (edit->asset != 0 && asset == 0) ||
 344 // different transitions
 345                 (edit->transition == 0 && transition != 0) ||
 346                 (edit->transition != 0 && transition == 0) ||
 347 // Position changed
 348                 (startproject != edit->startproject) ||
 349                 (startsource != edit->startsource) ||
 350 // Transition changed
 351                 (transition && edit->transition &&
 352                         !transition->identical(edit->transition)) ||
 353 // Asset changed
 354                 (asset && edit->asset &&
 355                         !asset->equivalent(*edit->asset, 1, 1, edl)) ||
 356 // Nested EDL changed
 357                 (nested_edl && edit->nested_edl &&
 358                         strcmp(nested_edl->path, edit->nested_edl->path))
 359                 )
 360         {
 361 // Start of edit changed
 362                 if(*result < 0 || startproject < *result) *result = startproject;
 363         }
 364 }
 365
 366
 367 Edit& Edit::operator=(Edit& edit)
 368 {
 369 //printf("Edit::operator= called\n");
 370         copy_from(&edit);
 371         return *this;
 372 }
 373
 374 void Edit::synchronize_params(Edit *edit)
 375 {
 376         copy_from(edit);
 377 }
 378
 379
 380 // Comparison for ResourcePixmap drawing
 381 int Edit::identical(Edit &edit)
 382 {
 383         int result = (this->nested_edl == edit.nested_edl &&
 384                 this->asset == edit.asset &&
 385                 this->startsource == edit.startsource &&
 386                 this->startproject == edit.startproject &&
 387                 this->length == edit.length &&
 388                 this->transition == edit.transition &&
 389                 this->channel == edit.channel);
 390         return result;
 391 }
 392
 393 int Edit::operator==(Edit &edit)
 394 {
 395         return identical(edit);
 396 }
 397
 398 double Edit::frames_per_picon()
 399 {
 400         return Units::round(picon_w()) / frame_w();
 401 }
 402
 403 double Edit::frame_w()
 404 {
 405         return track->from_units(1) *
 406                 edl->session->sample_rate /
 407                 edl->local_session->zoom_sample;
 408 }
 409
 410 double Edit::picon_w()
 411 {
 412         int w = 0, h = 0;
 413         if(asset) {
 414                 w = asset->width;
 415                 h = asset->height;
 416         }
 417         else if(nested_edl) {
 418                 w = nested_edl->session->output_w;
 419                 h = nested_edl->session->output_h;
 420         }
 421         return w>0 && h>0 ? ((double)track->data_h*w)/h : 0;
 422 }
 423
 424 int Edit::picon_h()
 425 {
 426         return track->data_h;
 427 }
 428
 429
 430 int Edit::dump(FILE *fp)
 431 {
 432         fprintf(fp,"     EDIT %p\n", this); fflush(fp);
 433         fprintf(fp,"      id %d, orig_id %d, nested_edl=%p %s asset=%p %s\n",
 434                 id, orig_id, nested_edl, nested_edl ? nested_edl->path : "",
 435                 asset, asset ? asset->path : "");
 436         fflush(fp);
 437         fprintf(fp,"      channel %d, color %08x, hard lt/rt %d/%d"
 438                 " group_id %d, is_selected %d\n",
 439                 channel, color, hard_left, hard_right, group_id, is_selected);
 440         if( transition ) {
 441                 fprintf(fp,"      TRANSITION %p\n", transition);
 442                 transition->dump(fp);
 443         }
 444         fprintf(fp,"      startsource %jd startproject %jd length %jd\n",
 445                 startsource, startproject, length);
 446         fflush(fp);
 447         return 0;
 448 }
 449
 450 int Edit::load_properties(FileXML *file, int64_t &startproject)
 451 {
 452         startsource = file->tag.get_property("STARTSOURCE", (int64_t)0);
 453         length = file->tag.get_property("LENGTH", (int64_t)0);
 454         hard_left = file->tag.get_property("HARD_LEFT", (int64_t)0);
 455         hard_right = file->tag.get_property("HARD_RIGHT", (int64_t)0);
 456         color = file->tag.get_property("COLOR", 0);
 457         group_id = file->tag.get_property("GROUP_ID", group_id);
 458         user_title[0] = 0;
 459         file->tag.get_property("USER_TITLE", user_title);
 460         this->startproject = startproject;
 461         load_properties_derived(file);
 462         return 0;
 463 }
 464
 465 void Edit::shift(int64_t difference)
 466 {
 467         startproject += difference;
 468 }
 469
 470 void Edit::trim(int64_t difference)
 471 {
 472         length += difference;
 473         if( startproject < 0 ) {
 474                 if( (startsource+=startproject) < 0 ) startsource = 0;
 475                 if( (length+=startproject) < 0 ) length = 0;
 476                 startproject = 0;
 477         }
 478         if( startsource < 0 )
 479                 startsource = 0;
 480         int64_t src_len = get_source_end(INT64_MAX);
 481         if( startsource + length > src_len ) {
 482                 length = src_len - startsource;
 483                 if( length < 0 ) length = 0;
 484         }
 485         if( length < 0 )
 486                 length = 0;
 487 }
 488
 489 int Edit::shift_start(int edit_mode, int64_t newposition, int64_t oldposition,
 490         int edit_labels, int edit_autos, int edit_plugins, Edits *trim_edits)
 491 {
 492         int64_t cut_length = newposition - oldposition;
 493         int rest_moved = edit_mode == MOVE_RIPPLE || edit_mode == MOVE_EDGE ? 1 : 0;
 494         if( cut_length > length )
 495                 cut_length = length;
 496         else if( cut_length < -length )
 497                 cut_length = -length;
 498
 499         int64_t start = startproject, end = start + length;
 500         Edit *prev = this->previous, *next = this->next;
 501         int edits_moved = 0;
 502
 503         switch( edit_mode ) {
 504         case MOVE_RIPPLE:
 505                 edits_moved = 1;
 506                 startsource += cut_length;
 507                 cut_length = -cut_length;
 508                 length += cut_length;
 509                 for( Edit *edit=next; edit; edit=edit->next )
 510                         edit->startproject += cut_length;
 511                 break;
 512         case MOVE_ROLL:
 513                 if( prev && prev->length + cut_length < 0 )
 514                         cut_length = -prev->length;
 515                 if( prev ) prev->trim(cut_length);
 516                 startproject += cut_length;
 517                 startsource += cut_length;
 518                 length -= cut_length;
 519                 break;
 520         case MOVE_SLIP:
 521                 edits_moved = 1;
 522                 startsource -= cut_length;
 523                 break;
 524         case MOVE_SLIDE:
 525                 edits_moved = 1;
 526                 if( prev && prev->length + cut_length < 0 )
 527                         cut_length = -prev->length;
 528                 if( next && next->length - cut_length < 0 )
 529                         cut_length = next->length;
 530                 if( prev ) prev->trim(cut_length);
 531                 startproject += cut_length;
 532                 if( next ) {
 533                         next->startproject += cut_length;
 534                         next->startsource += cut_length;
 535                         next->trim(-cut_length);
 536                 }
 537                 break;
 538         case MOVE_EDGE:
 539                 edits_moved = 1;
 540                 startsource -= cut_length;
 541                 length += cut_length;
 542                 for( Edit *edit=next; edit; edit=edit->next )
 543                         edit->startproject += cut_length;
 544                 break;
 545         }
 546         trim(0);
 547         return follow_edits(start, end, cut_length, edits_moved, rest_moved,
 548                 edit_labels, edit_autos, edit_plugins, trim_edits);
 549 }
 550
 551 int Edit::shift_end(int edit_mode, int64_t newposition, int64_t oldposition,
 552         int edit_labels, int edit_autos, int edit_plugins, Edits *trim_edits)
 553 {
 554         int64_t cut_length = newposition - oldposition;
 555         int rest_moved = edit_mode == MOVE_RIPPLE || edit_mode == MOVE_EDGE ? 1 : 0;
 556         if( cut_length > length ) {
 557                  if( !rest_moved ) cut_length = length;
 558         }
 559         else if( cut_length < -length )
 560                 cut_length = -length;
 561         int64_t start = startproject, end = start + length;
 562         Edit *prev = this->previous, *next = this->next;
 563         int edits_moved = 0;
 564
 565         switch( edit_mode ) {
 566         case MOVE_RIPPLE:
 567         case MOVE_EDGE:
 568                 length += cut_length;
 569                 for( Edit *edit=next; edit; edit=edit->next )
 570                         edit->startproject += cut_length;
 571                 break;
 572         case MOVE_ROLL:
 573                 if( next && next->length - cut_length < 0 )
 574                         cut_length = next->length;
 575                 length += cut_length;
 576                 if( next ) {
 577                         next->startproject += cut_length;
 578                         next->startsource += cut_length;
 579                         next->trim(-cut_length);
 580                 }
 581                 break;
 582         case MOVE_SLIP:
 583                 edits_moved = 1;
 584                 startsource -= cut_length;
 585                 break;
 586         case MOVE_SLIDE:
 587                 edits_moved = 1;
 588                 if( prev && prev->length + cut_length < 0 )
 589                         cut_length = -prev->length;
 590                 if( next && next->length - cut_length < 0 )
 591                         cut_length = next->length;
 592                 if( prev ) prev->trim(cut_length);
 593                 startproject += cut_length;
 594                 if( next ) {
 595                         next->startproject += cut_length;
 596                         next->startsource += cut_length;
 597                         next->trim(-cut_length);
 598                 }
 599                 break;
 600         }
 601         trim(0);
 602         return follow_edits(start, end, cut_length, edits_moved, rest_moved,
 603                 edit_labels, edit_autos, edit_plugins, trim_edits);
 604 }
 605
 606 int Edit::follow_edits(int64_t start, int64_t end, int64_t cut_length,
 607                 int edits_moved, int rest_moved, int edit_labels, int edit_autos,
 608                 int edit_plugins, Edits *trim_edits)
 609 {
 610         if( edits_moved && rest_moved ) {
 611                 if( edit_labels ) {
 612                         double cut_len = track->from_units(cut_length);
 613                         double start_pos = edits->track->from_units(start);
 614                         if( cut_len < 0 )
 615                                 edits->edl->labels->clear(start_pos + cut_len, start_pos, 1);
 616                         else if( cut_len > 0 )
 617                                 edits->edl->labels->insert(start_pos, cut_len);
 618                 }
 619                 if( cut_length < 0 )
 620                         track->clear(start + cut_length, start,
 621                                 0, 0, edit_autos, edit_plugins, trim_edits);
 622                 else if( cut_length > 0 ) {
 623                         if( edit_autos )
 624                                 track->shift_keyframes(start, cut_length);
 625                         if( edit_plugins )
 626                                 track->shift_effects(start, cut_length, 1, trim_edits);
 627                 }
 628         }
 629         else if( edits_moved ) {
 630                 if( edit_labels ) {
 631                         double cut_len = track->from_units(cut_length);
 632                         double start_pos = edits->track->from_units(start);
 633                         edits->edl->labels->insert(start_pos, cut_len);
 634                         double end_pos = edits->track->from_units(end);
 635                         edits->edl->labels->insert(end_pos + cut_len, -cut_len);
 636                 }
 637                 if( edit_autos ) {
 638                         if( cut_length > 0 ) {
 639                                 track->clear(end, end+cut_length, 0, 0, 0, 1, 0);
 640                                 track->shift_keyframes(start, cut_length);
 641                         }
 642                         else if( cut_length < 0 ) {
 643                                 track->clear(start+cut_length, start, 0, 0, 0, 1, 0);
 644                                 track->shift_keyframes(end+cut_length, -cut_length);
 645                         }
 646                 }
 647                 if( edit_plugins ) {
 648                         if( cut_length > 0 ) {
 649                                 track->clear(end, end+cut_length, 0, 0, -1, 0, 0);
 650                                 track->shift_effects(start, cut_length, 1, 0);
 651                         }
 652                         else if( cut_length < 0 ) {
 653                                 track->clear(start+cut_length, start, 0, 0, -1, 0, 0);
 654                                 track->shift_effects(end+cut_length, -cut_length, 1, 0);
 655                         }
 656                 }
 657         }
 658         else if( rest_moved ) {
 659                 if( edit_labels ) {
 660                         double cut_len = track->from_units(cut_length);
 661                         double end_pos = edits->track->from_units(end);
 662                         if( cut_len < 0 )
 663                                 edits->edl->labels->clear(end_pos + cut_len, end_pos, 1);
 664                         else if( cut_len > 0 )
 665                                 edits->edl->labels->insert(end_pos, cut_len);
 666                 }
 667                 if( cut_length < 0 )
 668                         track->clear(end + cut_length, end,
 669                                 0, 0, edit_autos, edit_plugins, trim_edits);
 670                 else if( cut_length > 0 ) {
 671                         if( edit_autos )
 672                                 track->shift_keyframes(end, cut_length);
 673                         if( edit_plugins )
 674                                 track->shift_effects(end, cut_length, 1, trim_edits);
 675                 }
 676         }
 677         return 0;
 678 }
 679
 680
 681
 682 int Edit::popup_transition(float view_start, float zoom_units, int cursor_x, int cursor_y)
 683 {
 684         int64_t left, right, left_unit, right_unit;
 685         if(!transition) return 0;
 686         get_handle_parameters(left, right, left_unit, right_unit, view_start, zoom_units);
 687
 688         if(cursor_x > left && cursor_x < right)
 689         {
 690 //              transition->popup_transition(cursor_x, cursor_y);
 691                 return 1;
 692         }
 693         return 0;
 694 }
 695
 696 int Edit::select_handle(float view_start, float zoom_units, int cursor_x, int cursor_y, int64_t &selection)
 697 {
 698         int64_t left, right, left_unit, right_unit;
 699         get_handle_parameters(left, right, left_unit, right_unit, view_start, zoom_units);
 700
 701         int64_t pixel1, pixel2;
 702         pixel1 = left;
 703         pixel2 = pixel1 + xS(10);
 704
 705 // test left edit
 706 // cursor_x is faked in acanvas
 707         if(cursor_x >= pixel1 && cursor_x <= pixel2)
 708         {
 709                 selection = left_unit;
 710                 return 1;     // left handle
 711         }
 712
 713         //int64_t endproject = startproject + length;
 714         pixel2 = right;
 715         pixel1 = pixel2 - xS(10);
 716
 717 // test right edit
 718         if(cursor_x >= pixel1 && cursor_x <= pixel2)
 719         {
 720                 selection = right_unit;
 721                 return 2;     // right handle
 722         }
 723         return 0;
 724 }
 725
 726 void Edit::get_title(char *title)
 727 {
 728         if( user_title[0] ) {
 729                 strcpy(title, user_title);
 730                 return;
 731         }
 732         Indexable *idxbl = asset ? (Indexable*)asset : (Indexable*)nested_edl;
 733         if( !idxbl ) {
 734                 title[0] = 0;
 735                 return;
 736         }
 737         FileSystem fs;
 738         fs.extract_name(title, idxbl->path);
 739         if( asset || track->data_type == TRACK_AUDIO ) {
 740                 char number[BCSTRLEN];
 741                 sprintf(number, " #%d", channel + 1);
 742                 strcat(title, number);
 743         }
 744 }
 745