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****************************************************************************/

#ifndef QVOLATILEIMAGE_P_H
#define QVOLATILEIMAGE_P_H

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

#include <QtGui/qimage.h>
#include <QtCore/qshareddata.h>

QT_BEGIN_NAMESPACE

class QVolatileImageData;

class Q_GUI_EXPORT QVolatileImage
{
public:
    QVolatileImage();
    QVolatileImage(int w, int h, QImage::Format format);
    explicit QVolatileImage(const QImage &sourceImage);
    explicit QVolatileImage(void *nativeImage, void *nativeMask = 0);
    QVolatileImage(const QVolatileImage &other);
    ~QVolatileImage();
    QVolatileImage &operator=(const QVolatileImage &rhs);

    bool isNull() const;
    QImage::Format format() const;
    int width() const;
    int height() const;
    int bytesPerLine() const;
    int byteCount() const;
    int depth() const;
    bool hasAlphaChannel() const;
    void beginDataAccess() const;
    void endDataAccess(bool readOnly = false) const;
    uchar *bits();
    const uchar *constBits() const;
    bool ensureFormat(QImage::Format format);
    QImage toImage() const;
    QImage &imageRef();
    QPaintEngine *paintEngine();
    void setAlphaChannel(const QPixmap &alphaChannel);
    void fill(uint pixelValue);
    void *duplicateNativeImage() const;
    void copyFrom(QVolatileImage *source, const QRect &rect);

private:
    QSharedDataPointer<QVolatileImageData> d;
};

QT_END_NAMESPACE

#endif // QVOLATILEIMAGE_P_H