qpnghandler_p.h

qt-x11-opensource-src-4.1.4.tar.gz源码

/****************************************************************************
**
** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the QtGui module of the Qt Toolkit.
**
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** License version 2.0 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 GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
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#ifndef QPNGHANDLER_P_H
#define QPNGHANDLER_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of the QLibrary class.  This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//

#include "QtGui/qimageiohandler.h"

#ifndef QT_NO_IMAGEFORMAT_PNG

class QPngHandlerPrivate;
class Q_GUI_EXPORT QPngHandler : public QImageIOHandler
{
public:
    QPngHandler();
    ~QPngHandler();

    bool canRead() const;
    bool read(QImage *image);
    bool write(const QImage &image);

    QByteArray name() const;

    QVariant option(ImageOption option) const;
    void setOption(ImageOption option, const QVariant &value);
    bool supportsOption(ImageOption option) const;

    static bool canRead(QIODevice *device);

private:
    QPngHandlerPrivate *d;
};

#endif // QT_NO_IMAGEFORMAT_PNG
#endif // QPNGHANDLER_P_H