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124 lines
3.1 KiB
124 lines
3.1 KiB
// vim: set tabstop=4 shiftwidth=4 noexpandtab
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/*
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Gwenview - A simple image viewer for KDE
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Copyright 2000-2004 Aurélien Gâteau
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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, Boston, MA 02110-1301, USA.
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*/
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#ifndef IMAGELOADER_H
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#define IMAGELOADER_H
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// Qt
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#include <qasyncimageio.h>
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#include <qbuffer.h>
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#include <qcstring.h>
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// KDE
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#include <kio/job.h>
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// Local
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#include "tsthread/tsthread.h"
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#include "imageframe.h"
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#include "busylevelmanager.h"
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#include "mimetypeutils.h"
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#include "libgwenview_export.h"
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namespace Gwenview {
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class DecoderThread : public TSThread {
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Q_OBJECT
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public:
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void setRawData(const QByteArray&);
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QImage popLoadedImage();
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signals:
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void failed();
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void succeeded();
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protected:
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void run();
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private:
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QMutex mMutex;
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QByteArray mRawData;
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QImage mImage;
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};
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class ImageLoaderPrivate;
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class LIBGWENVIEW_EXPORT ImageLoader : public QObject, public QImageConsumer {
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Q_OBJECT
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public:
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static ImageLoader* loader( const KURL& url, const QObject* owner, BusyLevel priority ); // use this instead of ctor
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void release( const QObject* owner ); // use this instead of dtor
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QImage processedImage() const;
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ImageFrames frames() const;
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QCString imageFormat() const;
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QByteArray rawData() const;
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QString mimeType() const;
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MimeTypeUtils::Kind urlKind() const;
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KURL url() const;
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QRegion loadedRegion() const; // valid parts of processedImage()
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bool completed() const;
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signals:
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void urlKindDetermined();
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void sizeLoaded(int, int);
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void imageChanged(const QRect&);
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void imageLoaded( bool ok );
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private slots:
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void slotStatResult(KIO::Job*);
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void slotDataReceived(KIO::Job*, const QByteArray& chunk);
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void slotGetResult(KIO::Job*);
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void decodeChunk();
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void slotDecoderThreadFailed();
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void slotDecoderThreadSucceeded();
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void slotBusyLevelChanged( BusyLevel );
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void ownerDestroyed();
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void startLoading();
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void callFinish();
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private:
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ImageLoader();
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~ImageLoader();
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void ref( const QObject* owner, BusyLevel priority );
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void deref( const QObject* owner );
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void suspendLoading();
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void resumeLoading();
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void finish( bool ok );
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void startThread();
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void setURL( const KURL& url );
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void checkPendingStat();
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void checkPendingGet();
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BusyLevel priority() const;
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// QImageConsumer methods
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void end();
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void changed(const QRect&);
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void frameDone();
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void frameDone(const QPoint& offset, const QRect& rect);
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void setLooping(int);
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void setFramePeriod(int milliseconds);
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void setSize(int, int);
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ImageLoaderPrivate* d;
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};
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} // namespace
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#endif /* IMAGELOADER_H */
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