void MetadataTask::run()
{
if(d->cancel)
{
return;
}
if (d->direction == MetadataSynchronizer::WriteFromDatabaseToFile)
{
MetadataHub fileHub;
// read in from database
fileHub.load(d->item);
// write out to file DMetadata
if(d->tagsOnly)
{
fileHub.writeTags(d->item.filePath());
}
else
{
fileHub.write(d->item.filePath(), MetadataHub::WRITE_ALL, true);
}
}
else // MetadataSynchronizer::ReadFromFileToDatabase
{
CollectionScanner scanner;
scanner.scanFile(d->item, CollectionScanner::Rescan);
}
emit signalFinished(QImage());
emit signalDone();
}
void ImageDescEditTab::slotReadFromFileMetadataToDatabase()
{
initProgressIndicator();
emit signalProgressMessageChanged(i18n("Reading metadata from files. Please wait..."));
d->ignoreImageAttributesWatch = true;
int i = 0;
ScanController::instance()->suspendCollectionScan();
CollectionScanner scanner;
foreach(const ImageInfo& info, d->currInfos)
{
scanner.scanFile(info, CollectionScanner::Rescan);
emit signalProgressValueChanged(i++/(float)d->currInfos.count());
qApp->processEvents();
}
ScanController::instance()->resumeCollectionScan();
d->ignoreImageAttributesWatch = false;
emit signalProgressFinished();
// reload everything
setInfos(d->currInfos);
}
void ScanController::scanFileDirectly(const QString& filePath)
{
suspendCollectionScan();
CollectionScanner scanner;
scanner.recordHints(d->itemHints);
scanner.recordHints(d->itemChangeHints);
scanner.scanFile(filePath);
resumeCollectionScan();
}
void ScanController::scanFileDirectlyCopyAttributes(const QString& filePath, qlonglong parentVersion)
{
suspendCollectionScan();
CollectionScanner scanner;
scanner.recordHints(d->itemHints);
scanner.recordHints(d->itemChangeHints);
qlonglong id = scanner.scanFile(filePath);
ImageInfo dest(id), source(parentVersion);
scanner.copyFileProperties(source, dest);
resumeCollectionScan();
}
void ScanController::run()
{
while (d->running)
{
bool doInit = false, doScan = false, doPartialScan = false, doUpdateUniqueHash = false;
QString task;
{
QMutexLocker lock(&d->mutex);
if (d->needsInitialization)
{
d->needsInitialization = false;
doInit = true;
}
else if (d->needsCompleteScan)
{
d->needsCompleteScan = false;
doScan = true;
}
else if (d->needsUpdateUniqueHash)
{
d->needsUpdateUniqueHash = false;
doUpdateUniqueHash = true;
}
else if (!d->scanTasks.isEmpty() && !d->scanSuspended)
{
doPartialScan = true;
task = d->scanTasks.takeFirst();
}
else
{
d->idle = true;
d->condVar.wait(&d->mutex);
d->idle = false;
}
}
if (doInit)
{
d->continueInitialization = true;
// pass "this" as InitializationObserver
bool success = DatabaseAccess::checkReadyForUse(this);
// If d->advice has not been adjusted to a value indicating failure, do this here
if (!success && d->advice == Success)
{
d->advice = ContinueWithoutDatabase;
}
emit databaseInitialized(success);
}
else if (doScan)
{
CollectionScanner scanner;
connectCollectionScanner(&scanner);
scanner.setNeedFileCount(d->needTotalFiles);
scanner.recordHints(d->albumHints);
scanner.recordHints(d->itemHints);
scanner.recordHints(d->itemChangeHints);
SimpleCollectionScannerObserver observer(&d->continueScan);
scanner.setObserver(&observer);
scanner.completeScan();
emit completeScanDone();
}
else if (doPartialScan)
{
CollectionScanner scanner;
scanner.recordHints(d->albumHints);
scanner.recordHints(d->itemHints);
scanner.recordHints(d->itemChangeHints);
//connectCollectionScanner(&scanner);
SimpleCollectionScannerObserver observer(&d->continuePartialScan);
scanner.setObserver(&observer);
scanner.partialScan(task);
}
else if (doUpdateUniqueHash)
{
DatabaseAccess access;
SchemaUpdater updater(access.db(), access.backend(), access.parameters());
updater.setDatabaseAccess(&access);
updater.setObserver(this);
updater.updateUniqueHash();
emit completeScanDone();
}
}
}