Qt
Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
Loading...
Searching...
No Matches
main.cpp
Go to the documentation of this file.
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
5
#
include
<
qimageiohandler
.
h
>
6
#
include
<
qstringlist
.
h
>
7
8
#
ifdef
QT_NO_IMAGEFORMAT_JPEG
9
#
undef
QT_NO_IMAGEFORMAT_JPEG
10
#
endif
11
#
include
<
qjpeghandler_p
.
h
>
12
13
QT_BEGIN_NAMESPACE
14
15
class
QJpegPlugin
:
public
QImageIOPlugin
16
{
17
Q_OBJECT
18
Q_PLUGIN_METADATA(IID
"org.qt-project.Qt.QImageIOHandlerFactoryInterface"
FILE
"jpeg.json"
)
19
public
:
20
Capabilities
capabilities
(
QIODevice
*
device
,
const
QByteArray
&
format
)
const
override
;
21
QImageIOHandler
*
create
(QIODevice *device,
const
QByteArray &format = QByteArray())
const
override
;
22
};
23
24
QImageIOPlugin::Capabilities
QJpegPlugin
::capabilities(QIODevice *device,
const
QByteArray &format)
const
25
{
26
if
(format ==
"jpeg"
|| format ==
"jpg"
|| format ==
"jfif"
)
27
return
Capabilities(CanRead | CanWrite);
28
if
(!format.isEmpty())
29
return
{ };
30
if
(!device->isOpen())
31
return
{ };
32
33
Capabilities cap;
34
if
(device->isReadable() && QJpegHandler::canRead(device))
35
cap |= CanRead;
36
if
(device->isWritable())
37
cap |= CanWrite;
38
return
cap;
39
}
40
41
QImageIOHandler
*
QJpegPlugin
::
create
(QIODevice *device,
const
QByteArray &format)
const
42
{
43
QImageIOHandler *handler =
new
QJpegHandler;
44
handler->setDevice(device);
45
handler->setFormat(format);
46
return
handler;
47
}
48
49
QT_END_NAMESPACE
50
51
#
include
"main.moc"
QJpegPlugin
Definition
main.cpp:16
QJpegPlugin::create
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
QT_BEGIN_NAMESPACE
Combined button and popup list for selecting options.
Definition
qrandomaccessasyncfile_darwin.mm:17
qtbase
src
plugins
imageformats
jpeg
main.cpp
Generated on
for Qt by
1.16.1