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39
40#ifndef QJPEGHANDLER_P_H
41#define QJPEGHANDLER_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtGui/qimageiohandler.h>
55#include <QtCore/QSize>
56#include <QtCore/QRect>
57
58QT_BEGIN_NAMESPACE
59
60class QJpegHandlerPrivate;
61class QJpegHandler : public QImageIOHandler
62{
63public:
64 QJpegHandler();
65 ~QJpegHandler();
66
67 bool canRead() const override;
68 bool read(QImage *image) override;
69 bool write(const QImage &image) override;
70
71 static bool canRead(QIODevice *device);
72
73 QVariant option(ImageOption option) const override;
74 void setOption(ImageOption option, const QVariant &value) override;
75 bool supportsOption(ImageOption option) const override;
76
77private:
78 QJpegHandlerPrivate *d;
79};
80
81QT_END_NAMESPACE
82
83#endif // QJPEGHANDLER_P_H
84

source code of qtbase/src/plugins/imageformats/jpeg/qjpeghandler_p.h