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