src/Model_CueSheet.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2011 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 2 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License along
  16 // with this program; if not, write to the Free Software Foundation, Inc.,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 // http://www.gnu.org/licenses/gpl-2.0.txt
  20 ///////////////////////////////////////////////////////////////////////////////
  21
  22 #include "Global.h"
  23 #include "Model_CueSheet.h"
  24 #include "Genres.h"
  25
  26 #include <QApplication>
  27 #include <QDir>
  28 #include <QFileInfo>
  29 #include <QFont>
  30 #include <QTime>
  31
  32 #include <float.h>
  33 #include <limits>
  34
  35 #define UNQUOTE(STR) STR.split("\"",  QString::SkipEmptyParts).first().trimmed()
  36
  37 ////////////////////////////////////////////////////////////
  38 // Helper Classes
  39 ////////////////////////////////////////////////////////////
  40
  41 class CueSheetItem
  42 {
  43 public:
  44         virtual const char* type(void) = 0;
  45         virtual bool isValid(void) { return false; }
  46 };
  47
  48 class CueSheetTrack : public CueSheetItem
  49 {
  50 public:
  51         CueSheetTrack(CueSheetFile *parent, int trackNo)
  52         :
  53                 m_parent(parent),
  54                 m_trackNo(trackNo)
  55         {
  56                 m_startIndex = std::numeric_limits<double>::quiet_NaN();
  57                 m_duration = std::numeric_limits<double>::infinity();
  58                 m_year = 0;
  59         }
  60         int trackNo(void) { return m_trackNo; }
  61         double startIndex(void) { return m_startIndex; }
  62         double duration(void) { return m_duration; }
  63         QString title(void) { return m_title; }
  64         QString performer(void) { return m_performer; }
  65         QString genre(void) { return m_genre; }
  66         unsigned int year(void) { return m_year; }
  67         CueSheetFile *parent(void) { return m_parent; }
  68         void setStartIndex(double startIndex) { m_startIndex = startIndex; }
  69         void setDuration(double duration) { m_duration = duration; }
  70         void setTitle(const QString &title, bool update = false) { if(!update || (m_title.isEmpty() && !title.isEmpty())) m_title = title; }
  71         void setPerformer(const QString &performer, bool update = false) { if(!update || (m_performer.isEmpty() && !performer.isEmpty())) m_performer = performer; }
  72         void setGenre(const QString &genre, bool update = false) { if(!update || (m_genre.isEmpty() && !m_genre.isEmpty())) m_genre = genre; }
  73         void setYear(const unsigned int year, bool update = false) { if(!update || (year == 0)) m_year = year; }
  74         virtual bool isValid(void) { return !(_isnan(m_startIndex) || (m_trackNo < 0)); }
  75         virtual const char* type(void) { return "CueSheetTrack"; }
  76 private:
  77         int m_trackNo;
  78         double m_startIndex;
  79         double m_duration;
  80         QString m_title;
  81         QString m_performer;
  82         QString m_genre;
  83         unsigned int m_year;
  84         CueSheetFile *m_parent;
  85 };
  86
  87 class CueSheetFile : public CueSheetItem
  88 {
  89 public:
  90         CueSheetFile(const QString &fileName) : m_fileName(fileName) {}
  91         ~CueSheetFile(void) { while(!m_tracks.isEmpty()) delete m_tracks.takeLast(); }
  92         QString fileName(void) { return m_fileName; }
  93         void addTrack(CueSheetTrack *track) { m_tracks.append(track); }
  94         void clearTracks(void) { while(!m_tracks.isEmpty()) delete m_tracks.takeLast(); }
  95         CueSheetTrack *track(int index) { return m_tracks.at(index); }
  96         int trackCount(void) { return m_tracks.count(); }
  97         virtual bool isValid(void) { return m_tracks.count() > 0; }
  98         virtual const char* type(void) { return "CueSheetFile"; }
  99 private:
 100         const QString m_fileName;
 101         QList<CueSheetTrack*> m_tracks;
 102 };
 103
 104 ////////////////////////////////////////////////////////////
 105 // Constructor & Destructor
 106 ////////////////////////////////////////////////////////////
 107
 108 QMutex CueSheetModel::m_mutex(QMutex::Recursive);
 109
 110 CueSheetModel::CueSheetModel()
 111 :
 112         m_fileIcon(":/icons/music.png"),
 113         m_trackIcon(":/icons/control_play_blue.png")
 114 {
 115         int trackNo = 0;
 116         m_albumYear = 0;
 117
 118         for(int i = 0; i < 5; i++)
 119         {
 120                 CueSheetFile *currentFile = new CueSheetFile(QString().sprintf("File %02d.wav", i+1));
 121                 for(int j = 0; j < 8; j++)
 122                 {
 123                         CueSheetTrack *currentTrack = new CueSheetTrack(currentFile, trackNo++);
 124                         currentTrack->setTitle("ATWA (Air Trees Water Animals)");
 125                         currentTrack->setPerformer("System of a Down");
 126                         currentFile->addTrack(currentTrack);
 127                 }
 128                 m_files.append(currentFile);
 129         }
 130 }
 131
 132 CueSheetModel::~CueSheetModel(void)
 133 {
 134         while(!m_files.isEmpty()) delete m_files.takeLast();
 135 }
 136
 137 ////////////////////////////////////////////////////////////
 138 // Model Functions
 139 ////////////////////////////////////////////////////////////
 140
 141 QModelIndex CueSheetModel::index(int row, int column, const QModelIndex &parent) const
 142 {
 143         QMutexLocker lock(&m_mutex);
 144
 145         if(!parent.isValid())
 146         {
 147                 return (row < m_files.count()) ? createIndex(row, column, m_files.at(row)) : QModelIndex();
 148         }
 149
 150         CueSheetItem *parentItem = static_cast<CueSheetItem*>(parent.internalPointer());
 151         if(CueSheetFile *filePtr = dynamic_cast<CueSheetFile*>(parentItem))
 152         {
 153                 return (row < filePtr->trackCount()) ? createIndex(row, column, filePtr->track(row)) : QModelIndex();
 154         }
 155
 156         return QModelIndex();
 157 }
 158
 159 int CueSheetModel::columnCount(const QModelIndex &parent) const
 160 {
 161         QMutexLocker lock(&m_mutex);
 162         return 4;
 163 }
 164
 165 int CueSheetModel::rowCount(const QModelIndex &parent) const
 166 {
 167         QMutexLocker lock(&m_mutex);
 168
 169         if(!parent.isValid())
 170         {
 171                 return m_files.count();
 172         }
 173
 174         CueSheetItem *parentItem = static_cast<CueSheetItem*>(parent.internalPointer());
 175         if(CueSheetFile *filePtr = dynamic_cast<CueSheetFile*>(parentItem))
 176         {
 177                 return filePtr->trackCount();
 178         }
 179
 180         return 0;
 181 }
 182
 183 QModelIndex CueSheetModel::parent(const QModelIndex &child) const
 184 {
 185         QMutexLocker lock(&m_mutex);
 186
 187         if(child.isValid())
 188         {
 189                 CueSheetItem *childItem = static_cast<CueSheetItem*>(child.internalPointer());
 190                 if(CueSheetTrack *trackPtr = dynamic_cast<CueSheetTrack*>(childItem))
 191                 {
 192                         return createIndex(m_files.indexOf(trackPtr->parent()), 0, trackPtr->parent());
 193                 }
 194         }
 195
 196         return QModelIndex();
 197 }
 198
 199 QVariant CueSheetModel::headerData (int section, Qt::Orientation orientation, int role) const
 200 {
 201         QMutexLocker lock(&m_mutex);
 202
 203         if(role == Qt::DisplayRole)
 204         {
 205                 switch(section)
 206                 {
 207                 case 0:
 208                         return tr("No.");
 209                         break;
 210                 case 1:
 211                         return tr("File / Track");
 212                         break;
 213                 case 2:
 214                         return tr("Index");
 215                         break;
 216                 case 3:
 217                         return tr("Duration");
 218                         break;
 219                 default:
 220                         return QVariant();
 221                         break;
 222                 }
 223         }
 224         else
 225         {
 226                 return QVariant();
 227         }
 228 }
 229
 230 QVariant CueSheetModel::data(const QModelIndex &index, int role) const
 231 {
 232         QMutexLocker lock(&m_mutex);
 233
 234         if(role == Qt::DisplayRole)
 235         {
 236                 CueSheetItem *item = reinterpret_cast<CueSheetItem*>(index.internalPointer());
 237
 238                 if(CueSheetFile *filePtr = dynamic_cast<CueSheetFile*>(item))
 239                 {
 240                         switch(index.column())
 241                         {
 242                         case 0:
 243                                 return tr("File %1").arg(QString().sprintf("%02d", index.row() + 1)).append(" ");
 244                                 break;
 245                         case 1:
 246                                 return QFileInfo(filePtr->fileName()).fileName();
 247                                 break;
 248                         default:
 249                                 return QVariant();
 250                                 break;
 251                         }
 252                 }
 253                 else if(CueSheetTrack *trackPtr = dynamic_cast<CueSheetTrack*>(item))
 254                 {
 255                         switch(index.column())
 256                         {
 257                         case 0:
 258                                 return tr("Track %1").arg(QString().sprintf("%02d", trackPtr->trackNo())).append(" ");
 259                                 break;
 260                         case 1:
 261                                 if(!trackPtr->title().isEmpty() && !trackPtr->performer().isEmpty())
 262                                 {
 263                                         return QString("%1 - %2").arg(trackPtr->performer(), trackPtr->title());
 264                                 }
 265                                 else if(!trackPtr->title().isEmpty())
 266                                 {
 267                                         return QString("%1 - %2").arg(tr("Unknown Artist"), trackPtr->title());
 268                                 }
 269                                 else if(!trackPtr->performer().isEmpty())
 270                                 {
 271                                         return QString("%1 - %2").arg(trackPtr->performer(), tr("Unknown Title"));
 272                                 }
 273                                 else
 274                                 {
 275                                         return QString("%1 - %2").arg(tr("Unknown Artist"), tr("Unknown Title"));
 276                                 }
 277                                 break;
 278                         case 2:
 279                                 return indexToString(trackPtr->startIndex());
 280                                 break;
 281                         case 3:
 282                                 return indexToString(trackPtr->duration());
 283                                 break;
 284                         default:
 285                                 return QVariant();
 286                                 break;
 287                         }
 288                 }
 289         }
 290         else if(role == Qt::ToolTipRole)
 291         {
 292                 CueSheetItem *item = reinterpret_cast<CueSheetItem*>(index.internalPointer());
 293
 294                 if(CueSheetFile *filePtr = dynamic_cast<CueSheetFile*>(item))
 295                 {
 296                         return QDir::toNativeSeparators(filePtr->fileName());
 297                 }
 298                 else if(CueSheetTrack *trackPtr = dynamic_cast<CueSheetTrack*>(item))
 299                 {
 300                         return QDir::toNativeSeparators(trackPtr->parent()->fileName());
 301                 }
 302         }
 303         else if(role == Qt::DecorationRole)
 304         {
 305                 if(index.column() == 0)
 306                 {
 307                         CueSheetItem *item = reinterpret_cast<CueSheetItem*>(index.internalPointer());
 308
 309                         if(dynamic_cast<CueSheetFile*>(item))
 310                         {
 311                                 return m_fileIcon;
 312                         }
 313                         else if(dynamic_cast<CueSheetTrack*>(item))
 314                         {
 315                                 return m_trackIcon;
 316                         }
 317                 }
 318         }
 319         else if(role == Qt::FontRole)
 320         {
 321                 QFont font("Monospace");
 322                 font.setStyleHint(QFont::TypeWriter);
 323                 if((index.column() == 1))
 324                 {
 325                         CueSheetItem *item = reinterpret_cast<CueSheetItem*>(index.internalPointer());
 326                         font.setBold(dynamic_cast<CueSheetFile*>(item) != NULL);
 327                 }
 328                 return font;
 329         }
 330         else if(role == Qt::ForegroundRole)
 331         {
 332                 if((index.column() == 1))
 333                 {
 334                         CueSheetItem *item = reinterpret_cast<CueSheetItem*>(index.internalPointer());
 335                         if(CueSheetFile *filePtr = dynamic_cast<CueSheetFile*>(item))
 336                         {
 337                                 return (QFileInfo(filePtr->fileName()).size() > 4) ? QColor("mediumblue") : QColor("darkred");
 338                         }
 339                 }
 340                 else if((index.column() == 3))
 341                 {
 342                         CueSheetItem *item = reinterpret_cast<CueSheetItem*>(index.internalPointer());
 343                         if(CueSheetTrack *trackPtr = dynamic_cast<CueSheetTrack*>(item))
 344                         {
 345                                 if(trackPtr->duration() == std::numeric_limits<double>::infinity())
 346                                 {
 347                                         return QColor("dimgrey");
 348                                 }
 349                         }
 350                 }
 351         }
 352
 353         return QVariant();
 354 }
 355
 356 void CueSheetModel::clearData(void)
 357 {
 358         QMutexLocker lock(&m_mutex);
 359
 360         beginResetModel();
 361         while(!m_files.isEmpty()) delete m_files.takeLast();
 362         endResetModel();
 363 }
 364
 365 ////////////////////////////////////////////////////////////
 366 // External API
 367 ////////////////////////////////////////////////////////////
 368
 369 int CueSheetModel::getFileCount(void)
 370 {
 371         QMutexLocker lock(&m_mutex);
 372         return m_files.count();
 373 }
 374
 375 QString CueSheetModel::getFileName(int fileIndex)
 376 {
 377         QMutexLocker lock(&m_mutex);
 378
 379         if(fileIndex < 0 || fileIndex >= m_files.count())
 380         {
 381                 return QString();
 382         }
 383
 384         return m_files.at(fileIndex)->fileName();
 385 }
 386
 387 int CueSheetModel::getTrackCount(int fileIndex)
 388 {
 389         QMutexLocker lock(&m_mutex);
 390
 391         if(fileIndex < 0 || fileIndex >= m_files.count())
 392         {
 393                 return -1;
 394         }
 395
 396         return m_files.at(fileIndex)->trackCount();
 397 }
 398
 399 int CueSheetModel::getTrackNo(int fileIndex, int trackIndex)
 400 {
 401         QMutexLocker lock(&m_mutex);
 402
 403         if(fileIndex >= 0 && fileIndex < m_files.count())
 404         {
 405                 CueSheetFile *currentFile = m_files.at(fileIndex);
 406                 if(trackIndex >= 0 && trackIndex < currentFile->trackCount())
 407                 {
 408                         return currentFile->track(trackIndex)->trackNo();
 409                 }
 410         }
 411
 412         return -1;
 413 }
 414
 415 void CueSheetModel::getTrackIndex(int fileIndex, int trackIndex, double *startIndex, double *duration)
 416 {
 417         QMutexLocker lock(&m_mutex);
 418
 419         *startIndex = std::numeric_limits<double>::quiet_NaN();
 420         *duration = std::numeric_limits<double>::quiet_NaN();
 421
 422         if(fileIndex >= 0 && fileIndex < m_files.count())
 423         {
 424                 CueSheetFile *currentFile = m_files.at(fileIndex);
 425                 if(trackIndex >= 0 && trackIndex < currentFile->trackCount())
 426                 {
 427                         CueSheetTrack *currentTrack = currentFile->track(trackIndex);
 428                         *startIndex = currentTrack->startIndex();
 429                         *duration = currentTrack->duration();
 430                 }
 431         }
 432 }
 433
 434 QString CueSheetModel::getTrackPerformer(int fileIndex, int trackIndex)
 435 {
 436         QMutexLocker lock(&m_mutex);
 437
 438         if(fileIndex >= 0 && fileIndex < m_files.count())
 439         {
 440                 CueSheetFile *currentFile = m_files.at(fileIndex);
 441                 if(trackIndex >= 0 && trackIndex < currentFile->trackCount())
 442                 {
 443                         CueSheetTrack *currentTrack = currentFile->track(trackIndex);
 444                         return currentTrack->performer();
 445                 }
 446         }
 447
 448         return QString();
 449 }
 450
 451 QString CueSheetModel::getTrackTitle(int fileIndex, int trackIndex)
 452 {
 453         QMutexLocker lock(&m_mutex);
 454
 455         if(fileIndex >= 0 && fileIndex < m_files.count())
 456         {
 457                 CueSheetFile *currentFile = m_files.at(fileIndex);
 458                 if(trackIndex >= 0 && trackIndex < currentFile->trackCount())
 459                 {
 460                         CueSheetTrack *currentTrack = currentFile->track(trackIndex);
 461                         return currentTrack->title();
 462                 }
 463         }
 464
 465         return QString();
 466 }
 467
 468 QString CueSheetModel::getTrackGenre(int fileIndex, int trackIndex)
 469 {
 470         QMutexLocker lock(&m_mutex);
 471
 472         if(fileIndex >= 0 && fileIndex < m_files.count())
 473         {
 474                 CueSheetFile *currentFile = m_files.at(fileIndex);
 475                 if(trackIndex >= 0 && trackIndex < currentFile->trackCount())
 476                 {
 477                         CueSheetTrack *currentTrack = currentFile->track(trackIndex);
 478                         return currentTrack->genre();
 479                 }
 480         }
 481
 482         return QString();
 483 }
 484
 485 unsigned int CueSheetModel::getTrackYear(int fileIndex, int trackIndex)
 486 {
 487         QMutexLocker lock(&m_mutex);
 488
 489         if(fileIndex >= 0 && fileIndex < m_files.count())
 490         {
 491                 CueSheetFile *currentFile = m_files.at(fileIndex);
 492                 if(trackIndex >= 0 && trackIndex < currentFile->trackCount())
 493                 {
 494                         CueSheetTrack *currentTrack = currentFile->track(trackIndex);
 495                         return currentTrack->year();
 496                 }
 497         }
 498
 499         return 0;
 500 }
 501
 502 QString CueSheetModel::getAlbumPerformer(void)
 503 {
 504         QMutexLocker lock(&m_mutex);
 505         return m_albumPerformer;
 506 }
 507
 508 QString CueSheetModel::getAlbumTitle(void)
 509 {
 510         QMutexLocker lock(&m_mutex);
 511         return m_albumTitle;
 512 }
 513
 514 QString CueSheetModel::getAlbumGenre(void)
 515 {
 516         QMutexLocker lock(&m_mutex);
 517         return m_albumGenre;
 518 }
 519
 520 unsigned int CueSheetModel::getAlbumYear(void)
 521 {
 522         QMutexLocker lock(&m_mutex);
 523         return m_albumYear;
 524 }
 525 ////////////////////////////////////////////////////////////
 526 // Cue Sheet Parser
 527 ////////////////////////////////////////////////////////////
 528
 529 int CueSheetModel::loadCueSheet(const QString &cueFileName, QCoreApplication *application)
 530 {
 531         QMutexLocker lock(&m_mutex);
 532
 533         QFile cueFile(cueFileName);
 534         if(!cueFile.open(QIODevice::ReadOnly))
 535         {
 536                 return ErrorIOFailure;
 537         }
 538
 539         clearData();
 540
 541         beginResetModel();
 542         int iResult = parseCueFile(cueFile, QDir(QFileInfo(cueFile).canonicalPath()), application);
 543         endResetModel();
 544
 545         return iResult;
 546 }
 547
 548 int CueSheetModel::parseCueFile(QFile &cueFile, const QDir &baseDir, QCoreApplication *application)
 549 {
 550         cueFile.seek(0);
 551         qDebug("\n[Cue Sheet Import]");
 552
 553         //Reject very large files, as parsing might take until forever
 554         if(cueFile.size() >= 10485760i64)
 555         {
 556                 qWarning("File is very big. Probably not a Cue Sheet. Rejecting...");
 557                 return 2;
 558         }
 559
 560         //Check for UTF-8 BOM in order to guess encoding
 561         QByteArray bomCheck = cueFile.peek(128);
 562         bool bUTF8 = bomCheck.contains("\xef\xbb\xbf");
 563         qDebug("Encoding is %s.", (bUTF8 ? "UTF-8" : "Local 8-Bit"));
 564         bomCheck.clear();
 565
 566         QRegExp rxFile("^FILE\\s+(\"[^\"]+\"|\\S+)\\s+(\\w+)$", Qt::CaseInsensitive);
 567         QRegExp rxTrack("^TRACK\\s+(\\d+)\\s(\\w+)$", Qt::CaseInsensitive);
 568         QRegExp rxIndex("^INDEX\\s+(\\d+)\\s+([0-9:]+)$", Qt::CaseInsensitive);
 569         QRegExp rxTitle("^TITLE\\s+(\"[^\"]+\"|\\S+)$", Qt::CaseInsensitive);
 570         QRegExp rxPerformer("^PERFORMER\\s+(\"[^\"]+\"|\\S+)$", Qt::CaseInsensitive);
 571         QRegExp rxGenre("^REM\\s+GENRE\\s+(\"[^\"]+\"|\\S+)$", Qt::CaseInsensitive);
 572         QRegExp rxYear("^REM\\s+DATE\\s+(\\d+)$", Qt::CaseInsensitive);
 573
 574         bool bPreamble = true;
 575         bool bUnsupportedTrack = false;
 576
 577         CueSheetFile *currentFile = NULL;
 578         CueSheetTrack *currentTrack = NULL;
 579
 580         m_albumTitle.clear();
 581         m_albumPerformer.clear();
 582         m_albumGenre.clear();
 583         m_albumYear = 0;
 584
 585         //Loop over the Cue Sheet until all lines were processed
 586         for(int lines = 0; lines < INT_MAX; lines++)
 587         {
 588                 if(application)
 589                 {
 590                         application->processEvents();
 591                         if(lines < 128) Sleep(10);
 592                 }
 593
 594                 QByteArray lineData = cueFile.readLine();
 595                 if(lineData.size() <= 0)
 596                 {
 597                         qDebug("End of Cue Sheet file.");
 598                         break;
 599                 }
 600
 601                 QString line = bUTF8 ? QString::fromUtf8(lineData.constData(), lineData.size()).trimmed() : QString::fromLocal8Bit(lineData.constData(), lineData.size()).trimmed();
 602
 603                 /* --- FILE --- */
 604                 if(rxFile.indexIn(line) >= 0)
 605                 {
 606                         qDebug("%03d File: <%s> <%s>", lines, rxFile.cap(1).toUtf8().constData(), rxFile.cap(2).toUtf8().constData());
 607                         if(currentFile)
 608                         {
 609                                 if(currentTrack)
 610                                 {
 611                                         if(currentTrack->isValid())
 612                                         {
 613                                                 currentFile->addTrack(currentTrack);
 614                                                 currentTrack = NULL;
 615                                         }
 616                                         else
 617                                         {
 618                                                 LAMEXP_DELETE(currentTrack);
 619                                         }
 620                                 }
 621                                 if(currentFile->isValid())
 622                                 {
 623                                         m_files.append(currentFile);
 624                                         currentFile = NULL;
 625                                 }
 626                                 else
 627                                 {
 628                                         LAMEXP_DELETE(currentFile);
 629                                 }
 630                         }
 631                         else
 632                         {
 633                                 LAMEXP_DELETE(currentTrack);
 634                         }
 635                         if(!rxFile.cap(2).compare("WAVE", Qt::CaseInsensitive) || !rxFile.cap(2).compare("MP3", Qt::CaseInsensitive) || !rxFile.cap(2).compare("AIFF", Qt::CaseInsensitive))
 636                         {
 637                                 currentFile = new CueSheetFile(baseDir.absoluteFilePath(UNQUOTE(rxFile.cap(1))));
 638                                 qDebug("%03d File path: <%s>", lines, currentFile->fileName().toUtf8().constData());
 639                         }
 640                         else
 641                         {
 642                                 bUnsupportedTrack = true;
 643                                 qWarning("%03d Skipping unsupported file of type '%s'.", lines, rxFile.cap(2).toUtf8().constData());
 644                                 currentFile = NULL;
 645                         }
 646                         bPreamble = false;
 647                         currentTrack = NULL;
 648                         continue;
 649                 }
 650
 651                 /* --- TRACK --- */
 652                 if(rxTrack.indexIn(line) >= 0)
 653                 {
 654                         if(currentFile)
 655                         {
 656                                 qDebug("%03d   Track: <%s> <%s>", lines, rxTrack.cap(1).toUtf8().constData(), rxTrack.cap(2).toUtf8().constData());
 657                                 if(currentTrack)
 658                                 {
 659                                         if(currentTrack->isValid())
 660                                         {
 661                                                 currentFile->addTrack(currentTrack);
 662                                                 currentTrack = NULL;
 663                                         }
 664                                         else
 665                                         {
 666                                                 LAMEXP_DELETE(currentTrack);
 667                                         }
 668                                 }
 669                                 if(!rxTrack.cap(2).compare("AUDIO", Qt::CaseInsensitive))
 670                                 {
 671                                         currentTrack = new CueSheetTrack(currentFile, rxTrack.cap(1).toInt());
 672                                 }
 673                                 else
 674                                 {
 675                                         bUnsupportedTrack = true;
 676                                         qWarning("%03d   Skipping unsupported track of type '%s'.", lines, rxTrack.cap(2).toUtf8().constData());
 677                                         currentTrack = NULL;
 678                                 }
 679                         }
 680                         else
 681                         {
 682                                 LAMEXP_DELETE(currentTrack);
 683                         }
 684                         bPreamble = false;
 685                         continue;
 686                 }
 687
 688                 /* --- INDEX --- */
 689                 if(rxIndex.indexIn(line) >= 0)
 690                 {
 691                         if(currentFile && currentTrack)
 692                         {
 693                                 qDebug("%03d     Index: <%s> <%s>", lines, rxIndex.cap(1).toUtf8().constData(), rxIndex.cap(2).toUtf8().constData());
 694                                 if(rxIndex.cap(1).toInt() == 1)
 695                                 {
 696                                         currentTrack->setStartIndex(parseTimeIndex(rxIndex.cap(2)));
 697                                 }
 698                         }
 699                         continue;
 700                 }
 701
 702                 /* --- TITLE --- */
 703                 if(rxTitle.indexIn(line) >= 0)
 704                 {
 705                         if(bPreamble)
 706                         {
 707                                 m_albumTitle = UNQUOTE(rxTitle.cap(1)).simplified();
 708                         }
 709                         else if(currentFile && currentTrack)
 710                         {
 711                                 qDebug("%03d     Title: <%s>", lines, rxTitle.cap(1).toUtf8().constData());
 712                                 currentTrack->setTitle(UNQUOTE(rxTitle.cap(1)).simplified());
 713                         }
 714                         continue;
 715                 }
 716
 717                 /* --- PERFORMER --- */
 718                 if(rxPerformer.indexIn(line) >= 0)
 719                 {
 720                         if(bPreamble)
 721                         {
 722                                 m_albumPerformer = UNQUOTE(rxPerformer.cap(1)).simplified();
 723                         }
 724                         else if(currentFile && currentTrack)
 725                         {
 726                                 qDebug("%03d     Title: <%s>", lines, rxPerformer.cap(1).toUtf8().constData());
 727                                 currentTrack->setPerformer(UNQUOTE(rxPerformer.cap(1)).simplified());
 728                         }
 729                         continue;
 730                 }
 731
 732                 /* --- GENRE --- */
 733                 if(rxGenre.indexIn(line) >= 0)
 734                 {
 735                         if(bPreamble)
 736                         {
 737                                 QString temp = UNQUOTE(rxGenre.cap(1)).simplified();
 738                                 for(int i = 0; g_lamexp_generes[i]; i++)
 739                                 {
 740                                         if(temp.compare(g_lamexp_generes[i], Qt::CaseInsensitive) == 0)
 741                                         {
 742                                                 m_albumGenre = QString(g_lamexp_generes[i]);
 743                                                 break;
 744                                         }
 745                                 }
 746                         }
 747                         else if(currentFile && currentTrack)
 748                         {
 749                                 qDebug("%03d     Genre: <%s>", lines, rxGenre.cap(1).toUtf8().constData());
 750                                 QString temp = UNQUOTE(rxGenre.cap(1).simplified());
 751                                 for(int i = 0; g_lamexp_generes[i]; i++)
 752                                 {
 753                                         if(temp.compare(g_lamexp_generes[i], Qt::CaseInsensitive) == 0)
 754                                         {
 755                                                 currentTrack->setGenre(QString(g_lamexp_generes[i]));
 756                                                 break;
 757                                         }
 758                                 }
 759                         }
 760                         continue;
 761                 }
 762
 763                 /* --- YEAR --- */
 764                 if(rxYear.indexIn(line) >= 0)
 765                 {
 766                         if(bPreamble)
 767                         {
 768                                 bool ok = false;
 769                                 unsigned int temp = rxYear.cap(1).toUInt(&ok);
 770                                 if(ok) m_albumYear =  temp;
 771                         }
 772                         else if(currentFile && currentTrack)
 773                         {
 774                                 qDebug("%03d     Year: <%s>", lines, rxPerformer.cap(1).toUtf8().constData());
 775                                 bool ok = false;
 776                                 unsigned int temp = rxYear.cap(1).toUInt(&ok);
 777                                 if(ok) currentTrack->setYear(temp);
 778                         }
 779                         continue;
 780                 }
 781         }
 782
 783         //Append the very last track/file that is still pending
 784         if(currentFile)
 785         {
 786                 if(currentTrack)
 787                 {
 788                         if(currentTrack->isValid())
 789                         {
 790                                 currentFile->addTrack(currentTrack);
 791                                 currentTrack = NULL;
 792                         }
 793                         else
 794                         {
 795                                 LAMEXP_DELETE(currentTrack);
 796                         }
 797                 }
 798                 if(currentFile->isValid())
 799                 {
 800                         m_files.append(currentFile);
 801                         currentFile = NULL;
 802                 }
 803                 else
 804                 {
 805                         LAMEXP_DELETE(currentFile);
 806                 }
 807         }
 808
 809         //Finally calculate duration of each track
 810         int nFiles = m_files.count();
 811         for(int i = 0; i < nFiles; i++)
 812         {
 813                 if(application)
 814                 {
 815                         application->processEvents();
 816                         Sleep(10);
 817                 }
 818
 819                 CueSheetFile *currentFile = m_files.at(i);
 820                 int nTracks = currentFile->trackCount();
 821                 if(nTracks > 1)
 822                 {
 823                         for(int j = 1; j < nTracks; j++)
 824                         {
 825                                 CueSheetTrack *currentTrack = currentFile->track(j);
 826                                 CueSheetTrack *previousTrack = currentFile->track(j-1);
 827                                 double duration = currentTrack->startIndex() - previousTrack->startIndex();
 828                                 previousTrack->setDuration(qMax(0.0, duration));
 829                         }
 830                 }
 831         }
 832
 833         //Sanity check of track numbers
 834         if(nFiles > 0)
 835         {
 836                 bool hasTracks = false;
 837                 int previousTrackNo = -1;
 838                 bool trackNo[100];
 839                 for(int i = 0; i < 100; i++)
 840                 {
 841                         trackNo[i] = false;
 842                 }
 843
 844                 for(int i = 0; i < nFiles; i++)
 845                 {
 846                         if(application)
 847                         {
 848                                 application->processEvents();
 849                                 Sleep(10);
 850                         }
 851                         CueSheetFile *currentFile = m_files.at(i);
 852                         int nTracks = currentFile->trackCount();
 853                         if(nTracks > 1)
 854                         {
 855                                 for(int j = 0; j < nTracks; j++)
 856                                 {
 857                                         int currentTrackNo = currentFile->track(j)->trackNo();
 858                                         if(currentTrackNo > 99)
 859                                         {
 860                                                 qWarning("Track #%02d is invalid (maximum is 99), Cue Sheet is inconsistent!", currentTrackNo);
 861                                                 return ErrorInconsistent;
 862                                         }
 863                                         if(currentTrackNo <= previousTrackNo)
 864                                         {
 865                                                 qWarning("Non-increasing track numbers (%02d -> %02d), Cue Sheet is inconsistent!", previousTrackNo, currentTrackNo);
 866                                                 return ErrorInconsistent;
 867                                         }
 868                                         if(trackNo[currentTrackNo])
 869                                         {
 870                                                 qWarning("Track #%02d exists multiple times, Cue Sheet is inconsistent!", currentTrackNo);
 871                                                 return ErrorInconsistent;
 872                                         }
 873                                         trackNo[currentTrackNo] = true;
 874                                         previousTrackNo = currentTrackNo;
 875                                         hasTracks = true;
 876                                 }
 877                         }
 878                 }
 879
 880                 if(!hasTracks)
 881                 {
 882                         qWarning("Could not find at least one valid track in the Cue Sheet!");
 883                         return ErrorInconsistent;
 884                 }
 885
 886                 return ErrorSuccess;
 887         }
 888         else
 889         {
 890                 qWarning("Could not find at least one valid input file in the Cue Sheet!");
 891                 return bUnsupportedTrack ? ErrorUnsupported : ErrorBadFile;
 892         }
 893 }
 894
 895 double CueSheetModel::parseTimeIndex(const QString &index)
 896 {
 897         QRegExp rxTimeIndex("\\s*(\\d+)\\s*:\\s*(\\d+)\\s*:\\s*(\\d+)\\s*");
 898
 899         if(rxTimeIndex.indexIn(index) >= 0)
 900         {
 901                 int min, sec, frm;
 902                 bool minOK, secOK, frmOK;
 903
 904                 min = rxTimeIndex.cap(1).toInt(&minOK);
 905                 sec = rxTimeIndex.cap(2).toInt(&secOK);
 906                 frm = rxTimeIndex.cap(3).toInt(&frmOK);
 907
 908                 if(minOK && secOK && frmOK)
 909                 {
 910                         return static_cast<double>(60 * min) + static_cast<double>(sec) + (static_cast<double>(frm) / 75.0);
 911                 }
 912         }
 913
 914         qWarning("    Bad time index: '%s'", index.toUtf8().constData());
 915         return std::numeric_limits<double>::quiet_NaN();
 916 }
 917
 918 QString CueSheetModel::indexToString(const double index) const
 919 {
 920         if(!_finite(index) || (index < 0.0) || (index > 86400.0))
 921         {
 922                 return QString("??:??.???");
 923         }
 924
 925         QTime time = QTime().addMSecs(static_cast<int>(floor(0.5 + (index * 1000.0))));
 926
 927         if(time.minute() < 100)
 928         {
 929                 return time.toString("mm:ss.zzz");
 930         }
 931         else
 932         {
 933                 return QString("99:99.999");
 934         }
 935 }