File indexing completed on 2024-05-12 04:19:36

 // vim: set tabstop=4 shiftwidth=4 expandtab:
 /*
 Gwenview: an image viewer
 Copyright 2008 Aurélien Gâteau <agateau@kde.org>
 
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 as published by the Free Software Foundation; either version 2
 of the License, or (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA.
 
 */
 // Self
 #include "animateddocumentloadedimpl.h"
 
 // Qt
 #include <QBuffer>
 #include <QImage>
 #include <QMovie>
 
 // KF
 
 // Local
 #include "gwenview_lib_debug.h"
 
 namespace Gwenview
 {
 struct AnimatedDocumentLoadedImplPrivate {
     QByteArray mRawData;
     QBuffer mMovieBuffer;
     QMovie mMovie;
 };
 
 AnimatedDocumentLoadedImpl::AnimatedDocumentLoadedImpl(Document *document, const QByteArray &rawData)
     : AbstractDocumentImpl(document)
     , d(new AnimatedDocumentLoadedImplPrivate)
 {
     d->mRawData = rawData;
 
     connect(&d->mMovie, &QMovie::frameChanged, this, &AnimatedDocumentLoadedImpl::slotFrameChanged);
 
     d->mMovieBuffer.setBuffer(&d->mRawData);
     d->mMovieBuffer.open(QIODevice::ReadOnly);
     d->mMovie.setDevice(&d->mMovieBuffer);
 }
 
 AnimatedDocumentLoadedImpl::~AnimatedDocumentLoadedImpl()
 {
     delete d;
 }
 
 void AnimatedDocumentLoadedImpl::init()
 {
     Q_EMIT isAnimatedUpdated();
     if (!document()->image().isNull()) {
         // We may reach this point without an image if the first frame got
         // downsampled by LoadingDocumentImpl (unlikely for now because the gif
         // io handler does not support the QImageIOHandler::ScaledSize option)
         Q_EMIT imageRectUpdated(document()->image().rect());
         Q_EMIT loaded();
     }
 }
 
 Document::LoadingState AnimatedDocumentLoadedImpl::loadingState() const
 {
     return Document::Loaded;
 }
 
 QByteArray AnimatedDocumentLoadedImpl::rawData() const
 {
     return d->mRawData;
 }
 
 void AnimatedDocumentLoadedImpl::slotFrameChanged(int /*frameNumber*/)
 {
     QImage image = d->mMovie.currentImage();
     setDocumentImage(image);
     Q_EMIT imageRectUpdated(image.rect());
 }
 
 bool AnimatedDocumentLoadedImpl::isAnimated() const
 {
     return true;
 }
 
 void AnimatedDocumentLoadedImpl::startAnimation()
 {
     d->mMovie.start();
     if (d->mMovie.state() == QMovie::NotRunning) {
         // This is true with qt-copy as of 2008.08.23
         // qCDebug(GWENVIEW_LIB_LOG) << "QMovie didn't start. This can happen in some cases when starting for the second time.";
         // qCDebug(GWENVIEW_LIB_LOG) << "Trying to start again, it usually fixes the bug.";
         d->mMovie.start();
     }
 }
 
 void AnimatedDocumentLoadedImpl::stopAnimation()
 {
     d->mMovie.stop();
 }
 
 } // namespace
 
 #include "moc_animateddocumentloadedimpl.cpp"