source: trunk/src/corelib/io/qbuffer.h@ 104

Last change on this file since 104 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.

File size: 3.3 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
5**
6** This file is part of the QtCore module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** 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**
36** If you are unsure which license is appropriate for your use, please
37** contact the sales department at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef QBUFFER_H
43#define QBUFFER_H
44
45#include <QtCore/qiodevice.h>
46#include <QtCore/qbytearray.h>
47
48QT_BEGIN_HEADER
49
50QT_BEGIN_NAMESPACE
51
52QT_MODULE(Core)
53
54class QObject;
55class QBufferPrivate;
56
57class Q_CORE_EXPORT QBuffer : public QIODevice
58{
59#ifndef QT_NO_QOBJECT
60 Q_OBJECT
61#endif
62
63public:
64#ifndef QT_NO_QOBJECT
65 explicit QBuffer(QObject *parent = 0);
66 QBuffer(QByteArray *buf, QObject *parent = 0);
67#else
68 QBuffer();
69 explicit QBuffer(QByteArray *buf);
70#endif
71 ~QBuffer();
72
73 QByteArray &buffer();
74 const QByteArray &buffer() const;
75 void setBuffer(QByteArray *a);
76
77 void setData(const QByteArray &data);
78 inline void setData(const char *data, int len);
79 const QByteArray &data() const;
80
81 bool open(OpenMode openMode);
82
83 void close();
84 qint64 size() const;
85 qint64 pos() const;
86 bool seek(qint64 off);
87 bool atEnd() const;
88 bool canReadLine() const;
89
90protected:
91#ifndef QT_NO_QOBJECT
92 void connectNotify(const char*);
93 void disconnectNotify(const char*);
94#endif
95 qint64 readData(char *data, qint64 maxlen);
96 qint64 writeData(const char *data, qint64 len);
97
98private:
99 Q_DECLARE_PRIVATE(QBuffer)
100 Q_DISABLE_COPY(QBuffer)
101
102 Q_PRIVATE_SLOT(d_func(), void _q_emitSignals())
103};
104
105inline void QBuffer::setData(const char *adata, int alen)
106{ setData(QByteArray(adata, alen)); }
107
108QT_END_NAMESPACE
109
110QT_END_HEADER
111
112#endif // QBUFFER_H
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