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/****************************************************************************
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** Copyright (C) 1992-2005 Trolltech AS. All rights reserved.
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** This file is part of the painting module of the Qt Toolkit.
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** This file may be distributed under the terms of the Q Public License
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** as defined by Trolltech AS of Norway and appearing in the file
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** LICENSE.QPL included in the packaging of this file.
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.
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** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
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** information about Qt Commercial License Agreements.
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** See http://www.trolltech.com/qpl/ for QPL licensing information.
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** See http://www.trolltech.com/gpl/ for GPL licensing information.
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** Contact info@trolltech.com if any conditions of this licensing are
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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****************************************************************************/
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#ifndef QIMAGEIOHANDLER_H
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#define QIMAGEIOHANDLER_H
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#include <QtCore/qplugin.h>
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#include <QtCore/qfactoryinterface.h>
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class QImageIOHandlerPrivate;
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class Q_GUI_EXPORT QImageIOHandler
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Q_DECLARE_PRIVATE(QImageIOHandler)
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virtual ~QImageIOHandler();
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void setDevice(QIODevice *device);
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QIODevice *device() const;
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void setFormat(const QByteArray &format);
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QByteArray format() const;
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virtual QByteArray name() const = 0;
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virtual bool canRead() const = 0;
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virtual bool read(QImage *image) = 0;
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virtual bool write(const QImage &image);
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virtual QVariant option(ImageOption option) const;
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virtual void setOption(ImageOption option, const QVariant &value);
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virtual bool supportsOption(ImageOption option) const;
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// incremental loading
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virtual bool jumpToNextImage();
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virtual bool jumpToImage(int imageNumber);
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virtual int loopCount() const;
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virtual int imageCount() const;
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virtual int nextImageDelay() const;
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virtual int currentImageNumber() const;
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virtual QRect currentImageRect() const;
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QImageIOHandler(QImageIOHandlerPrivate &dd);
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QImageIOHandlerPrivate *d_ptr;
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struct Q_GUI_EXPORT QImageIOHandlerFactoryInterface : public QFactoryInterface
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virtual QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const = 0;
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#define QImageIOHandlerFactoryInterface_iid "com.trolltech.Qt.QImageIOHandlerFactoryInterface"
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Q_DECLARE_INTERFACE(QImageIOHandlerFactoryInterface, QImageIOHandlerFactoryInterface_iid)
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class Q_GUI_EXPORT QImageIOPlugin : public QObject, public QImageIOHandlerFactoryInterface
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Q_INTERFACES(QImageIOHandlerFactoryInterface:QFactoryInterface)
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explicit QImageIOPlugin(QObject *parent = 0);
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virtual ~QImageIOPlugin();
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CanReadIncremental = 0x4
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Q_DECLARE_FLAGS(Capabilities, Capability)
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virtual Capabilities capabilities(QIODevice *device, const QByteArray &format) const = 0;
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virtual QStringList keys() const = 0;
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virtual QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const = 0;