File indexing completed on 2024-04-28 04:21:24

 // SPDX-FileCopyrightText: 2012 Jesper K. Pedersen <blackie@kde.org>
 // SPDX-FileCopyrightText: 2023 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 "VideoThumbnailCycler.h"
 
 #include "CellGeometry.h"
 #include "ThumbnailModel.h"
 
 #include <DB/ImageInfo.h>
 #include <DB/ImageInfoPtr.h>
 #include <ImageManager/VideoThumbnails.h>
 #include <kpabase/FileExtensions.h>
 
 #include <QTimer>
 
 ThumbnailView::VideoThumbnailCycler *ThumbnailView::VideoThumbnailCycler::s_instance = nullptr;
 
 ThumbnailView::VideoThumbnailCycler::VideoThumbnailCycler(ThumbnailModel *model, QObject *parent)
     : QObject(parent)
     , m_thumbnails(new ImageManager::VideoThumbnails(this))
     , m_model(model)
 {
     m_timer = new QTimer(this);
     connect(m_timer, &QTimer::timeout, m_thumbnails, &ImageManager::VideoThumbnails::requestNext);
     connect(m_thumbnails, &ImageManager::VideoThumbnails::frameLoaded, this, &VideoThumbnailCycler::gotFrame);
     Q_ASSERT(!s_instance);
     s_instance = this;
 }
 
 ThumbnailView::VideoThumbnailCycler *ThumbnailView::VideoThumbnailCycler::instance()
 {
     Q_ASSERT(s_instance);
     return s_instance;
 }
 
 void ThumbnailView::VideoThumbnailCycler::setActive(const DB::FileName &fileName)
 {
     if (m_fileName == fileName)
         return;
 
     stopCycle();
 
     m_fileName = fileName;
     if (!m_fileName.isNull() && isVideo(m_fileName))
         startCycle();
 }
 
 void ThumbnailView::VideoThumbnailCycler::gotFrame(const QImage &image)
 {
     QImage img = image.scaled(ThumbnailView::CellGeometry::preferredIconSize(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
     m_model->setOverrideImage(m_fileName, QPixmap::fromImage(img));
 }
 
 void ThumbnailView::VideoThumbnailCycler::resetPreviousThumbail()
 {
     if (m_fileName.isNull() || !isVideo(m_fileName))
         return;
 
     m_model->setOverrideImage(m_fileName, QPixmap());
 }
 
 bool ThumbnailView::VideoThumbnailCycler::isVideo(const DB::FileName &fileName) const
 {
     if (!fileName.isNull())
         return KPABase::isVideo(fileName);
     else
         return false;
 }
 
 void ThumbnailView::VideoThumbnailCycler::startCycle()
 {
     m_thumbnails->setVideoFile(m_fileName);
     m_timer->start(500);
     m_thumbnails->requestNext(); // We want it to cycle right away.
 }
 
 void ThumbnailView::VideoThumbnailCycler::stopCycle()
 {
     resetPreviousThumbail();
     m_fileName = DB::FileName();
     m_timer->stop();
 }
 // vi:expandtab:tabstop=4 shiftwidth=4:
 
 #include "moc_VideoThumbnailCycler.cpp"