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qgifhandler.h

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** WARNING:
**      A separate license from Unisys may be required to use the gif
**      reader. See http://www.unisys.com/about__unisys/lzw/
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#ifndef QGIFHANDLER_H
#define QGIFHANDLER_H

#include <QtGui/qimageiohandler.h>
#include <QtGui/qimage.h>
#include <QtCore/qbytearray.h>

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;
};

#endif // QGIFHANDLER_H

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