source: trunk/src/plugins/imageformats/jpeg/main.cpp@ 651

Last change on this file since 651 was 651, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.2 sources.

File size: 3.3 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the plugins of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
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38** $QT_END_LICENSE$
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40****************************************************************************/
41
42#include <qimageiohandler.h>
43#include <qstringlist.h>
44
45#ifndef QT_NO_IMAGEFORMATPLUGIN
46
47#ifdef QT_NO_IMAGEFORMAT_JPEG
48#undef QT_NO_IMAGEFORMAT_JPEG
49#endif
50#include "qjpeghandler.h"
51
52QT_BEGIN_NAMESPACE
53
54class QJpegPlugin : public QImageIOPlugin
55{
56public:
57 QStringList keys() const;
58 Capabilities capabilities(QIODevice *device, const QByteArray &format) const;
59 QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const;
60};
61
62QStringList QJpegPlugin::keys() const
63{
64 return QStringList() << QLatin1String("jpeg") << QLatin1String("jpg");
65}
66
67QImageIOPlugin::Capabilities QJpegPlugin::capabilities(QIODevice *device, const QByteArray &format) const
68{
69 if (format == "jpeg" || format == "jpg")
70 return Capabilities(CanRead | CanWrite);
71 if (!format.isEmpty())
72 return 0;
73 if (!device->isOpen())
74 return 0;
75
76 Capabilities cap;
77 if (device->isReadable() && QJpegHandler::canRead(device))
78 cap |= CanRead;
79 if (device->isWritable())
80 cap |= CanWrite;
81 return cap;
82}
83
84QImageIOHandler *QJpegPlugin::create(QIODevice *device, const QByteArray &format) const
85{
86 QImageIOHandler *handler = new QJpegHandler;
87 handler->setDevice(device);
88 handler->setFormat(format);
89 return handler;
90}
91
92Q_EXPORT_STATIC_PLUGIN(QJpegPlugin)
93Q_EXPORT_PLUGIN2(qjpeg, QJpegPlugin)