1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QPNGHANDLER_P_H
5#define QPNGHANDLER_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <QtGui/private/qtguiglobal_p.h>
19#include "QtGui/qimageiohandler.h"
20
21#ifndef QT_NO_IMAGEFORMAT_PNG
22
23QT_BEGIN_NAMESPACE
24
25class QPngHandlerPrivate;
26class QPngHandler : public QImageIOHandler
27{
28public:
29 QPngHandler();
30 ~QPngHandler();
31
32 bool canRead() const override;
33 bool read(QImage *image) override;
34 bool write(const QImage &image) override;
35
36 QVariant option(ImageOption option) const override;
37 void setOption(ImageOption option, const QVariant &value) override;
38 bool supportsOption(ImageOption option) const override;
39
40 static bool canRead(QIODevice *device);
41
42private:
43 QPngHandlerPrivate *d;
44};
45
46QT_END_NAMESPACE
47
48#endif // QT_NO_IMAGEFORMAT_PNG
49#endif // QPNGHANDLER_P_H
50

source code of qtbase/src/gui/image/qpnghandler_p.h