File indexing completed on 2024-04-28 15:39:47

 // SPDX-FileCopyrightText: 2012 Jesper K. Pedersen <blackie@kde.org>
 // SPDX-FileCopyrightText: 2022 Johannes Zarl-Zierl <johannes@zarl-zierl.at>
 //
 // SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 
 #include "ExtractOneThumbnailJob.h"
 
 #include "HandleVideoThumbnailRequestJob.h"
 
 #include <DB/ImageDB.h>
 #include <ImageManager/ExtractOneVideoFrame.h>
 #include <Utilities/ImageUtil.h>
 
 #include <KLocalizedString>
 #include <QFile>
 #include <QImage>
 #include <QPainter>
 
 namespace
 {
 constexpr QFileDevice::Permissions FILE_PERMISSIONS { QFile::ReadOwner | QFile::WriteOwner | QFile::ReadGroup | QFile::WriteGroup | QFile::ReadOther };
 }
 
 namespace BackgroundJobs
 {
 
 ExtractOneThumbnailJob::ExtractOneThumbnailJob(const DB::FileName &fileName, int index, BackgroundTaskManager::Priority priority)
     : JobInterface(priority)
     , m_fileName(fileName)
     , m_index(index)
     , m_wasCanceled(false)
 {
     Q_ASSERT(index >= 0 && index <= 9);
 }
 
 void ExtractOneThumbnailJob::execute()
 {
     if (m_wasCanceled || frameName().exists())
         Q_EMIT completed();
     else {
         DB::ImageInfoPtr info = DB::ImageDB::instance()->info(m_fileName);
         const int length = info->videoLength();
         ImageManager::ExtractOneVideoFrame::extract(m_fileName, length * m_index / 10.0, this, SLOT(frameLoaded(QImage)));
     }
 }
 
 QString ExtractOneThumbnailJob::title() const
 {
     return i18n("Extracting Thumbnail");
 }
 
 QString ExtractOneThumbnailJob::details() const
 {
     return QString::fromLatin1("%1 #%2").arg(m_fileName.relative()).arg(m_index);
 }
 
 int ExtractOneThumbnailJob::index() const
 {
     return m_index;
 }
 
 void ExtractOneThumbnailJob::cancel()
 {
     m_wasCanceled = true;
 }
 
 void ExtractOneThumbnailJob::frameLoaded(const QImage &image)
 {
     if (!image.isNull()) {
 #if 0
         QImage img = image;
         {
             QPainter painter(&img);
             QFont fnt;
             fnt.setPointSize(24);
             painter.setFont(fnt);
             painter.drawText(QPoint(100,100),QString::number(m_index));
         }
 #endif
         Utilities::saveImage(frameName(), image, "JPEG");
     } else {
         // Create empty file to avoid that we recheck at next start up.
         QFile file(frameName().absolute());
         if (file.open(QFile::WriteOnly)) {
             file.setPermissions(FILE_PERMISSIONS);
             file.close();
         }
     }
     Q_EMIT completed();
 }
 
 DB::FileName ExtractOneThumbnailJob::frameName() const
 {
     return BackgroundJobs::HandleVideoThumbnailRequestJob::frameName(m_fileName, m_index);
 }
 
 } // namespace BackgroundJobs
 // vi:expandtab:tabstop=4 shiftwidth=4:
 
 #include "moc_ExtractOneThumbnailJob.cpp"