Qt
Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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qicohandler.h
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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// Qt-Security score:significant reason:default
4#ifndef QTICOHANDLER_H
5#define QTICOHANDLER_H
6
7#include <QtGui/QImageIOHandler>
8
10
11class ICOReader;
13{
14public:
15 QtIcoHandler(QIODevice *device);
16 virtual ~QtIcoHandler();
17
18 bool canRead() const override;
19 bool read(QImage *image) override;
20 bool write(const QImage &image) override;
21
22 int imageCount() const override;
23 bool jumpToImage(int imageNumber) override;
25
26 static bool canRead(QIODevice *device);
27
28 bool supportsOption(ImageOption option) const override;
29 QVariant option(ImageOption option) const override;
30
31private:
32 int m_currentIconIndex;
33 ICOReader *m_pICOReader;
34 mutable bool knownCanRead = false;
35};
36
37QT_END_NAMESPACE
38
39#endif /* QTICOHANDLER_H */
QImageIOHandler * create(QIODevice *device, const QByteArray &format=QByteArray()) const override
Creates and returns a QImageIOHandler subclass, with device and format set.
Definition main.cpp:41
ImageOption
This enum describes the different options supported by QImageIOHandler.
The QtIcoHandler class provides support for the ICO image format.
Definition qicohandler.h:13
bool canRead() const override
Verifies if some values (magic bytes) are set as expected in the header of the file.
virtual ~QtIcoHandler()
Destructor for QtIcoHandler.
bool jumpToNextImage() override
\reimp
int imageCount() const override
\reimp
bool jumpToImage(int imageNumber) override
\reimp
QtIcoHandler(QIODevice *device)
Constructs an instance of QtIcoHandler initialized to use device.
static bool canRead(QIODevice *device)
This static function is used by the plugin code, and is provided for convenience only.
Combined button and popup list for selecting options.