File indexing completed on 2025-01-19 03:59:30

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2013-08-14
  * Description : Thread actions task for finger-prints generator.
  *
  * SPDX-FileCopyrightText: 2013-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #include "fingerprintstask.h"
 
 // Qt includes
 #include <QQueue>
 #include <QIcon>
 
 // Local includes
 
 #include "digikam_debug.h"
 #include "dimg.h"
 #include "haar.h"
 #include "haariface.h"
 #include "previewloadthread.h"
 #include "maintenancedata.h"
 #include "similaritydb.h"
 #include "similaritydbaccess.h"
 
 namespace Digikam
 {
 
 class Q_DECL_HIDDEN FingerprintsTask::Private
 {
 public:
 
     explicit Private()
         : data(nullptr)
     {
     }
 
     MaintenanceData* data;
     QImage           okImage;
 };
 
 // -------------------------------------------------------
 
 FingerprintsTask::FingerprintsTask()
     : ActionJob(),
       d(new Private)
 {
     QPixmap okPix = QIcon::fromTheme(QLatin1String("dialog-ok-apply")).pixmap(22, 22);
     d->okImage    = okPix.toImage();
 }
 
 FingerprintsTask::~FingerprintsTask()
 {
     cancel();
     delete d;
 }
 
 void FingerprintsTask::setMaintenanceData(MaintenanceData* const data)
 {
     d->data = data;
 }
 
 void FingerprintsTask::run()
 {
     // While we have data (using this as check for non-null)
 
     while (d->data)
     {
         if (m_cancel)
         {
             return;
         }
 
         qlonglong id = d->data->getImageId();
 
         if (id == -1)
         {
             break;
         }
 
         ItemInfo info(id);
 
         if (info.isVisible()                                              &&
             (info.category() == DatabaseItem::Category::Image)            &&
             !info.filePath().isEmpty()                                    &&
             !m_cancel                                                     &&
             (d->data->getRebuildAllFingerprints()                         ||
              SimilarityDbAccess().db()->hasDirtyOrMissingFingerprint(info)))
         {
             qCDebug(DIGIKAM_GENERAL_LOG) << "Updating fingerprints for file:" << info.filePath();
 
             DImg dimg = PreviewLoadThread::loadFastSynchronously(info.filePath(),
                                                                  HaarIface::preferredSize());
 
             if (!dimg.isNull())
             {
                 // compute Haar fingerprint and store it to DB
 
                 HaarIface haarIface;
                 haarIface.indexImage(info.id(), dimg);
             }
 
             QImage qimg = dimg.smoothScale(22, 22, Qt::KeepAspectRatio).copyQImage();
 
             Q_EMIT signalFinished(qimg);
         }
         else
         {
             Q_EMIT signalFinished(d->okImage);
         }
     }
 
     Q_EMIT signalDone();
 }
 
 } // namespace Digikam
 
 #include "moc_fingerprintstask.cpp"