void LibraryScannerDlg::slotCancel() {
qDebug() << "Cancelling library scan...";
m_bCancelled = true;
emit(scanCancelled());
// Need to use close() or else if you close the Mixxx window and then hit
// Cancel, Mixxx will not shutdown.
close();
}
LibraryScanner::LibraryScanner(QWidget* pParentWidget, TrackCollection* collection)
: m_pCollection(collection),
m_libraryHashDao(m_database),
m_cueDao(m_database),
m_playlistDao(m_database),
m_crateDao(m_database),
m_directoryDao(m_database),
m_analysisDao(m_database, collection->getConfig()),
m_trackDao(m_database, m_cueDao, m_playlistDao,
m_crateDao, m_analysisDao, m_libraryHashDao,
collection->getConfig()) {
// Don't initialize m_database here, we need to do it in run() so the DB
// conn is in the right thread.
qDebug() << "Starting LibraryScanner thread.";
// Move LibraryScanner to its own thread so that our signals/slots will
// queue to our event loop.
moveToThread(this);
m_pool.moveToThread(this);
unsigned static id = 0; // the id of this LibraryScanner, for debugging purposes
setObjectName(QString("LibraryScanner %1").arg(++id));
m_pool.setMaxThreadCount(kScannerThreadPoolSize);
// Listen to signals from our public methods (invoked by other threads) and
// connect them to our slots to run the command on the scanner thread.
connect(this, SIGNAL(startScan()),
this, SLOT(slotStartScan()));
// Force the GUI thread's TrackInfoObject cache to be cleared when a library
// scan is finished, because we might have modified the database directly
// when we detected moved files, and the TIOs corresponding to the moved
// files would then have the wrong track location.
connect(this, SIGNAL(scanFinished()),
&(collection->getTrackDAO()), SLOT(clearCache()));
connect(this, SIGNAL(trackAdded(TrackPointer)),
&(collection->getTrackDAO()), SLOT(databaseTrackAdded(TrackPointer)));
connect(this, SIGNAL(tracksMoved(QSet<int>, QSet<int>)),
&(collection->getTrackDAO()), SLOT(databaseTracksMoved(QSet<int>, QSet<int>)));
connect(this, SIGNAL(tracksChanged(QSet<int>)),
&(collection->getTrackDAO()), SLOT(databaseTracksChanged(QSet<int>)));
// Parented to pParentWidget so we don't need to delete it.
LibraryScannerDlg* pProgress = new LibraryScannerDlg(pParentWidget);
connect(this, SIGNAL(progressLoading(QString)),
pProgress, SLOT(slotUpdate(QString)));
connect(this, SIGNAL(progressHashing(QString)),
pProgress, SLOT(slotUpdate(QString)));
connect(this, SIGNAL(scanStarted()),
pProgress, SLOT(slotScanStarted()));
connect(this, SIGNAL(scanFinished()),
pProgress, SLOT(slotScanFinished()));
connect(pProgress, SIGNAL(scanCancelled()),
this, SLOT(cancel()));
connect(&m_trackDao, SIGNAL(progressVerifyTracksOutside(QString)),
pProgress, SLOT(slotUpdate(QString)));
connect(&m_trackDao, SIGNAL(progressCoverArt(QString)),
pProgress, SLOT(slotUpdateCover(QString)));
start();
}
LibraryScannerDlg::~LibraryScannerDlg() {
emit(scanCancelled());
}
