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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
** WARNING:
** A separate license from Unisys may be required to use the gif
** reader. See http://www.unisys.com/about__unisys/lzw/
** for information from Unisys
**
****************************************************************************/
#ifndef QGIFHANDLER_H
#define QGIFHANDLER_H
#include <QtGui/qimageiohandler.h>
#include <QtGui/qimage.h>
#include <QtCore/qbytearray.h>
QT_BEGIN_NAMESPACE
class QGIFFormat;
class QGifHandler : public QImageIOHandler
{
public:
QGifHandler();
~QGifHandler();
bool canRead() const;
bool read(QImage *image);
bool write(const QImage &image);
QByteArray name() const;
static bool canRead(QIODevice *device);
QVariant option(ImageOption option) const;
void setOption(ImageOption option, const QVariant &value);
bool supportsOption(ImageOption option) const;
int imageCount() const;
int loopCount() const;
int nextImageDelay() const;
int currentImageNumber() const;
private:
bool imageIsComing() const;
QGIFFormat *gifFormat;
QString fileName;
mutable QByteArray buffer;
mutable QImage lastImage;
mutable int nextDelay;
mutable int loopCnt;
int frameNumber;
mutable QSize nextSize;
};
QT_END_NAMESPACE
#endif // QGIFHANDLER_H
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