summaryrefslogtreecommitdiffstats
path: root/src/gvcore/imageloader.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/gvcore/imageloader.h')
-rw-r--r--src/gvcore/imageloader.h123
1 files changed, 123 insertions, 0 deletions
diff --git a/src/gvcore/imageloader.h b/src/gvcore/imageloader.h
new file mode 100644
index 0000000..c1cc1ec
--- /dev/null
+++ b/src/gvcore/imageloader.h
@@ -0,0 +1,123 @@
+// vim: set tabstop=4 shiftwidth=4 noexpandtab
+/*
+Gwenview - A simple image viewer for KDE
+Copyright 2000-2004 Aurélien Gâteau
+
+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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+*/
+#ifndef IMAGELOADER_H
+#define IMAGELOADER_H
+
+// Qt
+#include <qasyncimageio.h>
+#include <qbuffer.h>
+#include <qcstring.h>
+
+// KDE
+#include <kio/job.h>
+
+// Local
+#include "tsthread/tsthread.h"
+#include "imageframe.h"
+#include "busylevelmanager.h"
+#include "mimetypeutils.h"
+
+#include "libgwenview_export.h"
+namespace Gwenview {
+class DecoderThread : public TSThread {
+Q_OBJECT
+public:
+ void setRawData(const QByteArray&);
+ QImage popLoadedImage();
+
+signals:
+ void failed();
+ void succeeded();
+
+protected:
+ void run();
+
+private:
+ QMutex mMutex;
+ QByteArray mRawData;
+ QImage mImage;
+};
+
+class ImageLoaderPrivate;
+
+class LIBGWENVIEW_EXPORT ImageLoader : public QObject, public QImageConsumer {
+Q_OBJECT
+public:
+ static ImageLoader* loader( const KURL& url, const QObject* owner, BusyLevel priority ); // use this instead of ctor
+ void release( const QObject* owner ); // use this instead of dtor
+
+ QImage processedImage() const;
+ ImageFrames frames() const;
+ QCString imageFormat() const;
+ QByteArray rawData() const;
+ QString mimeType() const;
+ MimeTypeUtils::Kind urlKind() const;
+ KURL url() const;
+ QRegion loadedRegion() const; // valid parts of processedImage()
+ bool completed() const;
+
+signals:
+ void urlKindDetermined();
+ void sizeLoaded(int, int);
+ void imageChanged(const QRect&);
+ void imageLoaded( bool ok );
+
+private slots:
+ void slotStatResult(KIO::Job*);
+ void slotDataReceived(KIO::Job*, const QByteArray& chunk);
+ void slotGetResult(KIO::Job*);
+ void decodeChunk();
+ void slotDecoderThreadFailed();
+ void slotDecoderThreadSucceeded();
+ void slotBusyLevelChanged( BusyLevel );
+ void ownerDestroyed();
+ void startLoading();
+ void callFinish();
+
+private:
+ ImageLoader();
+ ~ImageLoader();
+ void ref( const QObject* owner, BusyLevel priority );
+ void deref( const QObject* owner );
+ void suspendLoading();
+ void resumeLoading();
+ void finish( bool ok );
+ void startThread();
+ void setURL( const KURL& url );
+ void checkPendingStat();
+ void checkPendingGet();
+ BusyLevel priority() const;
+
+ // QImageConsumer methods
+ void end();
+ void changed(const QRect&);
+ void frameDone();
+ void frameDone(const QPoint& offset, const QRect& rect);
+ void setLooping(int);
+ void setFramePeriod(int milliseconds);
+ void setSize(int, int);
+
+ ImageLoaderPrivate* d;
+};
+
+} // namespace
+#endif /* IMAGELOADER_H */
+