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1 | /**************************************************************************** | - |
2 | ** | - |
3 | ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). | - |
4 | ** Contact: http://www.qt-project.org/legal | - |
5 | ** | - |
6 | ** This file is part of the QtGui module of the Qt Toolkit. | - |
7 | ** | - |
8 | ** $QT_BEGIN_LICENSE:LGPL$ | - |
9 | ** Commercial License Usage | - |
10 | ** Licensees holding valid commercial Qt licenses may use this file in | - |
11 | ** accordance with the commercial license agreement provided with the | - |
12 | ** Software or, alternatively, in accordance with the terms contained in | - |
13 | ** a written agreement between you and Digia. For licensing terms and | - |
14 | ** conditions see http://qt.digia.com/licensing. For further information | - |
15 | ** use the contact form at http://qt.digia.com/contact-us. | - |
16 | ** | - |
17 | ** GNU Lesser General Public License Usage | - |
18 | ** Alternatively, this file may be used under the terms of the GNU Lesser | - |
19 | ** General Public License version 2.1 as published by the Free Software | - |
20 | ** Foundation and appearing in the file LICENSE.LGPL included in the | - |
21 | ** packaging of this file. Please review the following information to | - |
22 | ** ensure the GNU Lesser General Public License version 2.1 requirements | - |
23 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. | - |
24 | ** | - |
25 | ** In addition, as a special exception, Digia gives you certain additional | - |
26 | ** rights. These rights are described in the Digia Qt LGPL Exception | - |
27 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. | - |
28 | ** | - |
29 | ** GNU General Public License Usage | - |
30 | ** Alternatively, this file may be used under the terms of the GNU | - |
31 | ** General Public License version 3.0 as published by the Free Software | - |
32 | ** Foundation and appearing in the file LICENSE.GPL included in the | - |
33 | ** packaging of this file. Please review the following information to | - |
34 | ** ensure the GNU General Public License version 3.0 requirements will be | - |
35 | ** met: http://www.gnu.org/copyleft/gpl.html. | - |
36 | ** | - |
37 | ** | - |
38 | ** $QT_END_LICENSE$ | - |
39 | ** | - |
40 | ****************************************************************************/ | - |
41 | | - |
42 | #include "qpictureformatplugin.h" | - |
43 | #if !defined(QT_NO_LIBRARY) && !defined(QT_NO_PICTURE) | - |
44 | #include "qpicture.h" | - |
45 | | - |
46 | QT_BEGIN_NAMESPACE | - |
47 | | - |
48 | /*! | - |
49 | \obsolete | - |
50 | | - |
51 | \class QPictureFormatPlugin | - |
52 | \brief The QPictureFormatPlugin class provides an abstract base | - |
53 | for custom picture format plugins. | - |
54 | | - |
55 | \ingroup plugins | - |
56 | \inmodule QtGui | - |
57 | | - |
58 | The picture format plugin is a simple plugin interface that makes | - |
59 | it easy to create custom picture formats that can be used | - |
60 | transparently by applications. | - |
61 | | - |
62 | Writing an picture format plugin is achieved by subclassing this | - |
63 | base class, reimplementing the pure virtual functions | - |
64 | loadPicture(), savePicture(), and installIOHandler(), and | - |
65 | exporting the class with the Q_PLUGIN_METADATA() macro. | - |
66 | | - |
67 | The json file containing the metadata should contain one entry | - |
68 | with the list of picture formats supported by the plugin: | - |
69 | | - |
70 | \code | - |
71 | { "Keys": [ "mypictureformat" ] } | - |
72 | \endcode | - |
73 | | - |
74 | \sa {How to Create Qt Plugins} | - |
75 | */ | - |
76 | | - |
77 | /*! | - |
78 | \fn bool QPictureFormatPlugin::installIOHandler(const QString &format) | - |
79 | | - |
80 | Installs a QPictureIO picture I/O handler for the picture format \a | - |
81 | format. Returns \c true on success. | - |
82 | | - |
83 | \sa keys() | - |
84 | */ | - |
85 | | - |
86 | | - |
87 | /*! | - |
88 | Constructs an picture format plugin with the given \a parent. | - |
89 | This is invoked automatically by the moc generated code that exports the plugin. | - |
90 | */ | - |
91 | QPictureFormatPlugin::QPictureFormatPlugin(QObject *parent) | - |
92 | : QObject(parent) | - |
93 | { | - |
94 | } | 0 |
95 | | - |
96 | /*! | - |
97 | Destroys the picture format plugin. | - |
98 | | - |
99 | You never have to call this explicitly. Qt destroys a plugin | - |
100 | automatically when it is no longer used. | - |
101 | */ | - |
102 | QPictureFormatPlugin::~QPictureFormatPlugin() | - |
103 | { | - |
104 | } | - |
105 | | - |
106 | | - |
107 | /*! | - |
108 | Loads the picture stored in the file called \a fileName, with the | - |
109 | given \a format, into *\a picture. Returns true on success; | - |
110 | otherwise returns false. | - |
111 | | - |
112 | \sa savePicture() | - |
113 | */ | - |
114 | bool QPictureFormatPlugin::loadPicture(const QString &format, const QString &fileName, QPicture *picture) | - |
115 | { | - |
116 | Q_UNUSED(format) never executed (the execution status of this line is deduced): (void)format; | - |
117 | Q_UNUSED(fileName) never executed (the execution status of this line is deduced): (void)fileName; | - |
118 | Q_UNUSED(picture) never executed (the execution status of this line is deduced): (void)picture; | - |
119 | return false; never executed: return false; | 0 |
120 | } | - |
121 | | - |
122 | /*! | - |
123 | Saves the given \a picture into the file called \a fileName, | - |
124 | using the specified \a format. Returns true on success; otherwise | - |
125 | returns false. | - |
126 | | - |
127 | \sa loadPicture() | - |
128 | */ | - |
129 | bool QPictureFormatPlugin::savePicture(const QString &format, const QString &fileName, const QPicture &picture) | - |
130 | { | - |
131 | Q_UNUSED(format) never executed (the execution status of this line is deduced): (void)format; | - |
132 | Q_UNUSED(fileName) never executed (the execution status of this line is deduced): (void)fileName; | - |
133 | Q_UNUSED(picture) never executed (the execution status of this line is deduced): (void)picture; | - |
134 | return false; never executed: return false; | 0 |
135 | } | - |
136 | | - |
137 | #endif // QT_NO_LIBRARY || QT_NO_PICTURE | - |
138 | | - |
139 | QT_END_NAMESPACE | - |
140 | | - |
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