Long live Qt 4.5!

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diff --git a/src/gui/image/qimageiohandler.h b/src/gui/image/qimageiohandler.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QIMAGEIOHANDLER_H
+#define QIMAGEIOHANDLER_H
+
+#include <QtCore/qplugin.h>
+#include <QtCore/qfactoryinterface.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class QImage;
+class QRect;
+class QSize;
+class QVariant;
+
+class QImageIOHandlerPrivate;
+class Q_GUI_EXPORT QImageIOHandler
+{
+    Q_DECLARE_PRIVATE(QImageIOHandler)
+public:
+    QImageIOHandler();
+    virtual ~QImageIOHandler();
+
+    void setDevice(QIODevice *device);
+    QIODevice *device() const;
+
+    void setFormat(const QByteArray &format);
+    void setFormat(const QByteArray &format) const;
+    QByteArray format() const;
+
+    virtual QByteArray name() const;
+
+    virtual bool canRead() const = 0;
+    virtual bool read(QImage *image) = 0;
+    virtual bool write(const QImage &image);
+
+    enum ImageOption {
+        Size,
+        ClipRect,
+        Description,
+        ScaledClipRect,
+        ScaledSize,
+        CompressionRatio,
+        Gamma,
+        Quality,
+        Name,
+        SubType,
+        IncrementalReading,
+        Endianness,
+        Animation,
+        BackgroundColor,
+        ImageFormat
+    };
+    virtual QVariant option(ImageOption option) const;
+    virtual void setOption(ImageOption option, const QVariant &value);
+    virtual bool supportsOption(ImageOption option) const;
+
+    // incremental loading
+    virtual bool jumpToNextImage();
+    virtual bool jumpToImage(int imageNumber);
+    virtual int loopCount() const;
+    virtual int imageCount() const;
+    virtual int nextImageDelay() const;
+    virtual int currentImageNumber() const;
+    virtual QRect currentImageRect() const;
+
+protected:
+    QImageIOHandler(QImageIOHandlerPrivate &dd);
+    QImageIOHandlerPrivate *d_ptr;
+private:
+    Q_DISABLE_COPY(QImageIOHandler)
+};
+
+struct Q_GUI_EXPORT QImageIOHandlerFactoryInterface : public QFactoryInterface
+{
+    virtual QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const = 0;
+};
+
+#define QImageIOHandlerFactoryInterface_iid "com.trolltech.Qt.QImageIOHandlerFactoryInterface"
+Q_DECLARE_INTERFACE(QImageIOHandlerFactoryInterface, QImageIOHandlerFactoryInterface_iid)
+
+class Q_GUI_EXPORT QImageIOPlugin : public QObject, public QImageIOHandlerFactoryInterface
+{
+    Q_OBJECT
+    Q_INTERFACES(QImageIOHandlerFactoryInterface:QFactoryInterface)
+public:
+    explicit QImageIOPlugin(QObject *parent = 0);
+    virtual ~QImageIOPlugin();
+
+    enum Capability {
+        CanRead = 0x1,
+        CanWrite = 0x2,
+        CanReadIncremental = 0x4
+    };
+    Q_DECLARE_FLAGS(Capabilities, Capability)
+
+    virtual Capabilities capabilities(QIODevice *device, const QByteArray &format) const = 0;
+    virtual QStringList keys() const = 0;
+    virtual QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const = 0;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QImageIOPlugin::Capabilities)
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QIMAGEIOHANDLER_H