cinelerra-5.0/cinelerra/labels.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 "clip.h"
  23 #include "edl.h"
  24 #include "edlsession.h"
  25 #include "filexml.h"
  26 #include "labels.h"
  27 #include "mwindow.h"
  28 #include "mwindowgui.h"
  29 #include "patchbay.h"
  30 #include "recordlabel.h"
  31 #include "mainsession.h"
  32 #include "stringfile.h"
  33 #include "theme.h"
  34 #include "timebar.h"
  35 #include <string.h>
  36
  37
  38
  39 Labels::Labels(EDL *edl, const char *xml_tag)
  40  : List<Label>()
  41 {
  42         this->edl = edl;
  43         this->xml_tag = (char*)xml_tag;
  44 }
  45
  46 Labels::~Labels()
  47 {
  48         delete_all();
  49 }
  50
  51 void Labels::dump(FILE *fp)
  52 {
  53         for(Label *current = first; current; current = NEXT)
  54         {
  55                 fprintf(fp,"  label: %f\n", current->position);
  56         }
  57 }
  58
  59 void Labels::insert_labels(Labels *labels, double start, double length, int paste_silence)
  60 {
  61         Label *new_label;
  62         Label *old_label;
  63
  64
  65 //printf("Labels::insert_labels 1 %d %d\n", __LINE__, paste_silence);
  66
  67 // Insert silence in old labels
  68         if(paste_silence)
  69         {
  70                 for(old_label = first; old_label; old_label = old_label->next)
  71                 {
  72                         if(old_label->position > start ||
  73                                 edl->equivalent(old_label->position, start))
  74                                 old_label->position += length;
  75                 }
  76         }
  77
  78
  79 // Insert one new label at a time
  80         for(new_label = labels->first; new_label; new_label = new_label->next)
  81         {
  82                 int exists = 0;
  83 //printf("Labels::insert_labels 2 %f\n", new_label->position + start);
  84
  85 // Check every old label for existence
  86                 for(old_label = first; old_label; old_label = old_label->next)
  87                 {
  88                         if(edl->equivalent(old_label->position, new_label->position + start))
  89                         {
  90                                 exists = 1;
  91                                 break;
  92                         }
  93                         else
  94                         if(old_label->position > new_label->position + start)
  95                                 break;
  96                 }
  97
  98                 if(!exists)
  99                 {
 100                         if(old_label)
 101                                 insert_before(old_label, new Label(edl, this, new_label->position + start));
 102                         else
 103                                 append(new Label(edl, this, new_label->position + start));
 104                 }
 105         }
 106 }
 107
 108
 109 void Labels::insert_label(double position)
 110 {
 111         int exists = 0;
 112         Label *old_label = 0;
 113
 114 // Check every old label for existence
 115         for(old_label = first; old_label; old_label = old_label->next)
 116         {
 117                 if(edl->equivalent(old_label->position, position))
 118                 {
 119                         exists = 1;
 120                         break;
 121                 }
 122                 else
 123                 if(old_label->position > position)
 124                         break;
 125         }
 126
 127         if(!exists)
 128         {
 129                 if(old_label)
 130                         insert_before(old_label, new Label(edl, this, position));
 131                 else
 132                         append(new Label(edl, this, position));
 133         }
 134 }
 135
 136
 137 int Labels::toggle_label(double start, double end)
 138 {
 139         Label *current;
 140 //printf("Labels::toggle_label 1 %f %f\n", start, end);
 141
 142 // handle selection start
 143 // find label the selectionstart is after
 144         for(current = first;
 145                 current && current->position < start && !edl->equivalent(current->position, start);
 146                 current = NEXT)
 147         {
 148 //printf("Labels::toggle_label 2 %f %f %f\n", start, end, current->position);
 149                 ;
 150         }
 151
 152         if(current)
 153         {
 154 //printf("Labels::toggle_label 3 %f %f %f\n", start, end, current->position);
 155                 if(edl->equivalent(current->position, start))
 156                 {        // remove it
 157 //printf("Labels::toggle_label 1\n");
 158                         remove(current);
 159                 }
 160                 else
 161                 {        // insert before it
 162                         current = insert_before(current, new Label(edl, this, start));
 163                 }
 164         }
 165         else
 166         {           // insert after last
 167 //printf("Labels::toggle_label 1\n");
 168                 current = append(new Label(edl, this, start));
 169         }
 170
 171 // handle selection end
 172         if(!EQUIV(start, end))
 173         {
 174 //printf("Labels::toggle_label 2 %.16e %.16e\n", start, end);
 175 // find label the selectionend is after
 176                 for(current = first;
 177                         current && current->position < end && !edl->equivalent(current->position, end);
 178                         current = NEXT)
 179                 {
 180                         ;
 181                 }
 182
 183                 if(current)
 184                 {
 185                         if(edl->equivalent(current->position, end))
 186                         {
 187                                 remove(current);
 188                         }
 189                         else
 190                         {
 191                                 current = insert_before(current, new Label(edl, this, end));
 192                         }
 193                 }
 194                 else
 195                 {
 196                         current = append(new Label(edl, this, end));
 197                 }
 198         }
 199         return 0;
 200 }
 201
 202 Label *Labels::add_label(double position)
 203 {
 204         Label *current;
 205         for(current = first;
 206                 current && current->position < position;
 207                 current = NEXT)
 208         {
 209                 if( edl->equivalent(current->position, position) ) return 0;
 210         }
 211
 212         if(current)
 213         {
 214                 current = insert_before(current, new Label(edl, this, position));
 215         }
 216         else
 217         {
 218                 current = append(new Label(edl, this, position));
 219         }
 220         return current;
 221 }
 222
 223 int Labels::delete_all()
 224 {
 225         while(last)
 226                 remove(last);
 227         return 0;
 228 }
 229
 230 int Labels::copy(double start, double end, FileXML *xml)
 231 {
 232         char string[BCTEXTLEN];
 233         xml->tag.set_title(xml_tag);
 234         xml->append_tag();
 235         xml->append_newline();
 236
 237         Label *current;
 238         strcpy(string, xml_tag);
 239         string[strlen(string) - 1] = 0;
 240         for(current = label_of(start);
 241                 current && current->position <= end;
 242                 current = NEXT)
 243         {
 244                 xml->tag.set_title(string);
 245                 xml->tag.set_property("TIME", (double)current->position - start);
 246 //printf("Labels::copy %f\n", current->position - start);
 247                 xml->append_tag();
 248         }
 249
 250         sprintf(string, "/%s", xml_tag);
 251         xml->tag.set_title(string);
 252         xml->append_tag();
 253         xml->append_newline();
 254         xml->append_newline();
 255         return 0;
 256 }
 257
 258 int Labels::copy_length(long start, long end) // return number of Labels in selection
 259 {
 260         int result = 0;
 261         Label *current;
 262
 263         for(current = label_of(start); current && current->position <= end; current = NEXT)
 264         {
 265                 result++;
 266         }
 267         return result;
 268 }
 269
 270 void Labels::copy_from(Labels *labels)
 271 {
 272         while(last) delete last;
 273
 274         for(Label *current = labels->first; current; current = NEXT)
 275         {
 276                 append(new Label(edl, this, current->position));
 277         }
 278 }
 279
 280
 281 Labels& Labels::operator=(Labels &that)
 282 {
 283         copy_from(&that);
 284 printf("Labels::operator= 1\n");
 285         return *this;
 286 }
 287
 288
 289 int Labels::save(FileXML *xml)
 290 {
 291         xml->tag.set_title("LABELS");
 292         xml->append_tag();
 293         xml->append_newline();
 294
 295         Label *current;
 296
 297         for(current = first; current; current = NEXT)
 298         {
 299                 xml->tag.set_title("LABEL");
 300                 xml->tag.set_property("TIME", (double)current->position);
 301                 xml->append_tag();
 302         }
 303
 304         xml->append_newline();
 305         xml->tag.set_title("/LABELS");
 306         xml->append_tag();
 307         xml->append_newline();
 308         xml->append_newline();
 309         return 0;
 310 }
 311
 312 int Labels::load(FileXML *xml, uint32_t load_flags)
 313 {
 314         int result = 0;
 315         char string1[BCTEXTLEN], string2[BCTEXTLEN];
 316
 317         sprintf(string1, "/%s", xml_tag);
 318         strcpy(string2, xml_tag);
 319         string2[strlen(string2) - 1] = 0;
 320
 321         do{
 322                 result = xml->read_tag();
 323                 if(!result)
 324                 {
 325                         if(xml->tag.title_is(string1))
 326                         {
 327                                 result = 1;
 328                         }
 329                         else
 330                         if(xml->tag.title_is(string2))
 331                         {
 332                                 double position = xml->tag.get_property("TIME", (double)-1);
 333                                 if(position < 0)
 334                                         position = xml->tag.get_property("SAMPLE", (double)-1);
 335 //printf("Labels::load %f\n", position);
 336                                 if(position > -1)
 337                                 {
 338                                         Label *current = label_of(position);
 339                                         current = insert_before(current, new Label(edl, this, position));
 340                                 }
 341                         }
 342                         else
 343                         if(xml->tag.title_is("INPOINT"))
 344                         {
 345                                 double position = xml->tag.get_property("TIME", (double)-1);
 346                                 if(position < 0)
 347                                         position = xml->tag.get_property("SAMPLE", (double)-1);
 348                                 if(position > -1)
 349                                 {
 350                                         ;
 351                                 }
 352                         }
 353                         else
 354                         if(xml->tag.title_is("OUTPOINT"))
 355                         {
 356                                 double position = xml->tag.get_property("TIME", (double)-1);
 357                                 if(position < 0)
 358                                         position = xml->tag.get_property("SAMPLE", (double)-1);
 359                                 if(position > -1)
 360                                 {
 361                                         ;
 362                                 }
 363                         }
 364                 }
 365         }while(!result);
 366         return 0;
 367 }
 368
 369
 370
 371 int Labels::clear(double start, double end, int follow)
 372 {
 373         Label *current;
 374         Label *next;
 375
 376 //printf("Labels::clear 1\n");
 377         current = label_of(start);
 378 //printf("Labels::clear 2\n");
 379
 380 // remove selected labels
 381         while(current && current->position < end)
 382         {
 383                 next = NEXT;
 384                 delete current;
 385                 current = next;
 386         }
 387
 388 // Shift later labels
 389         if(follow)
 390         {
 391                 while(current)
 392                 {
 393 //printf("Labels::clear %d %f %f\n", __LINE__, current->position, end - start);
 394                         current->position -= end - start;   // shift labels forward
 395 //printf("Labels::clear %d %f %f\n", __LINE__, current->position, end - start);
 396                         current = NEXT;
 397                 }
 398 //printf("Labels::clear 4\n");
 399                 optimize();
 400 //printf("Labels::clear 5\n");
 401         }
 402
 403         return 0;
 404 }
 405
 406
 407 Label* Labels::prev_label(double position)
 408 {
 409         Label *current;
 410
 411 // Test for label under cursor position
 412         for(current = first;
 413                 current && !edl->equivalent(current->position, position);
 414                 current = NEXT)
 415                 ;
 416
 417 // Test for label after cursor position
 418         if(!current)
 419                 for(current = first;
 420                         current && current->position < position;
 421                         current = NEXT)
 422                         ;
 423
 424 // Test for label before cursor position
 425         if(!current)
 426                 current = last;
 427         else
 428 // Get previous label
 429                 current = PREVIOUS;
 430
 431         return current;
 432 }
 433
 434 Label* Labels::next_label(double position)
 435 {
 436         Label *current;
 437
 438 // Test for label under cursor position
 439         for(current = first;
 440                 current && !edl->equivalent(current->position, position);
 441                 current = NEXT)
 442                 ;
 443
 444 // Test for label before cursor position
 445         if(!current)
 446                 for(current = last;
 447                         current && current->position > position;
 448                         current = PREVIOUS)
 449                         ;
 450
 451 // Test for label after cursor position
 452         if(!current)
 453                 current = first;
 454         else
 455 // Get next label
 456                 current = NEXT;
 457
 458         return current;
 459 }
 460
 461 int Labels::insert(double start, double length)
 462 {
 463 // shift every label including the first one back
 464         Label *current;
 465
 466 //printf("Labels::insert %d\n", __LINE__);
 467         for(current = label_of(start); current; current = NEXT)
 468         {
 469                 current->position += length;
 470         }
 471         return 0;
 472 }
 473
 474 int Labels::paste_silence(double start, double end)
 475 {
 476         insert(start, end - start);
 477         optimize();
 478         return 0;
 479 }
 480
 481 int Labels::modify_handles(double oldposition,
 482         double newposition,
 483         int currentend,
 484         int handle_mode,
 485         int edit_labels)
 486 {
 487         if(edit_labels &&
 488                 handle_mode == MOVE_ALL_EDITS)
 489         {
 490                 if(currentend == 0)          // left handle
 491                 {
 492                         if(newposition < oldposition)
 493                         {
 494                                 insert(oldposition, oldposition - newposition);    // shift all labels right
 495                         }
 496                         else
 497                         {
 498                                 clear(oldposition, newposition);   // clear selection
 499                         }
 500                 }
 501                 else
 502                 {                            // right handle
 503                         if(newposition < oldposition)
 504                         {
 505                                 clear(newposition, oldposition);
 506                         }
 507                         else
 508                         {
 509                                 insert(oldposition, newposition - oldposition);
 510                         }
 511                 }
 512         }
 513         return 0;
 514 }
 515
 516 int Labels::optimize()
 517 {
 518         int result = 1;
 519         Label *current;
 520
 521         while(result)
 522         {
 523                 result = 0;
 524
 525                 for(current = first; current && NEXT && !result;)
 526                 {
 527                         Label *next = NEXT;
 528                         if(current->position == next->position)
 529                         {
 530                                 delete current;
 531                                 result  = 1;
 532                         }
 533                         current = next;
 534                 }
 535         }
 536         return 0;
 537 }
 538
 539 Label* Labels::label_of(double position)
 540 {
 541         Label *current;
 542
 543         for(current = first; current; current = NEXT)
 544         {
 545                 if(current->position >= position) return current;
 546         }
 547         return 0;
 548 }
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559 Label::Label()
 560  : ListItem<Label>()
 561 {
 562 }
 563
 564 Label::Label(EDL *edl, Labels *labels, double position)
 565  : ListItem<Label>()
 566 {
 567         this->edl = edl;
 568         this->labels = labels;
 569         this->position = position;
 570 }
 571
 572
 573 Label::~Label()
 574 {
 575 //      if(toggle) delete toggle;
 576 }
 577
 578 LabelToggle::LabelToggle(MWindow *mwindow,
 579         Label *label,
 580         int x,
 581         int y,
 582         long position)
 583  : BC_Label(x, y, 0)
 584 {
 585         this->mwindow = mwindow;
 586         this->label = label;
 587 }
 588
 589 LabelToggle::~LabelToggle() { }
 590
 591 int LabelToggle::handle_event()
 592 {
 593         return 0;
 594 }
 595