source: trunk/src/qt3support/text/q3textstream.h@ 646

Last change on this file since 646 was 561, checked in by Dmitry A. Kuminov, 16 years ago

trunk: Merged in qt 4.6.1 sources.
File size: 9.6 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 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 Qt3Support module 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**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef Q3TEXTSTREAM_H
43#define Q3TEXTSTREAM_H
44
45#include <QtCore/qiodevice.h>
46#include <QtCore/qstring.h>
47#ifndef QT_NO_TEXTCODEC
48#include <QtCore/qtextcodec.h>
49#endif
50#include <Qt3Support/q3cstring.h>
51
52#include <stdio.h>
53
54QT_BEGIN_HEADER
55
56QT_BEGIN_NAMESPACE
57
58QT_MODULE(Qt3SupportLight)
59
60class Q3TextStreamPrivate;
61
62class Q_COMPAT_EXPORT Q3TextStream // text stream class
63{
64public:
65 enum Encoding { Locale, Latin1, Unicode, UnicodeNetworkOrder,
66 UnicodeReverse, RawUnicode, UnicodeUTF8 };
67
68 void setEncoding( Encoding );
69#ifndef QT_NO_TEXTCODEC
70 void setCodec( QTextCodec* );
71 QTextCodec *codec();
72#endif
73
74 Q3TextStream();
75 Q3TextStream( QIODevice * );
76 Q3TextStream( QString*, int mode );
77 Q3TextStream( QString&, int mode ); // obsolete
78 Q3TextStream( QByteArray&, int mode );
79 Q3TextStream( FILE *, int mode );
80 virtual ~Q3TextStream();
81
82 QIODevice *device() const;
83 void setDevice( QIODevice * );
84 void unsetDevice();
85
86 bool atEnd() const;
87 bool eof() const;
88
89 Q3TextStream &operator>>( QChar & );
90 Q3TextStream &operator>>( char & );
91 Q3TextStream &operator>>( signed short & );
92 Q3TextStream &operator>>( unsigned short & );
93 Q3TextStream &operator>>( signed int & );
94 Q3TextStream &operator>>( unsigned int & );
95 Q3TextStream &operator>>( signed long & );
96 Q3TextStream &operator>>( unsigned long & );
97 Q3TextStream &operator>>( float & );
98 Q3TextStream &operator>>( double & );
99 Q3TextStream &operator>>( char * );
100 Q3TextStream &operator>>( QString & );
101 Q3TextStream &operator>>( Q3CString & );
102
103 Q3TextStream &operator<<( QChar );
104 Q3TextStream &operator<<( char );
105 Q3TextStream &operator<<( signed short );
106 Q3TextStream &operator<<( unsigned short );
107 Q3TextStream &operator<<( signed int );
108 Q3TextStream &operator<<( unsigned int );
109 Q3TextStream &operator<<( signed long );
110 Q3TextStream &operator<<( unsigned long );
111 Q3TextStream &operator<<( float );
112 Q3TextStream &operator<<( double );
113 Q3TextStream &operator<<( const char* );
114 Q3TextStream &operator<<( const QString & );
115 Q3TextStream &operator<<( const Q3CString & );
116 Q3TextStream &operator<<( void * ); // any pointer
117
118 Q3TextStream &readRawBytes( char *, uint len );
119 Q3TextStream &writeRawBytes( const char* , uint len );
120
121 QString readLine();
122 QString read();
123 void skipWhiteSpace();
124
125 enum {
126 skipws = 0x0001, // skip whitespace on input
127 left = 0x0002, // left-adjust output
128 right = 0x0004, // right-adjust output
129 internal = 0x0008, // pad after sign
130 bin = 0x0010, // binary format integer
131 oct = 0x0020, // octal format integer
132 dec = 0x0040, // decimal format integer
133 hex = 0x0080, // hex format integer
134 showbase = 0x0100, // show base indicator
135 showpoint = 0x0200, // force decimal point (float)
136 uppercase = 0x0400, // upper-case hex output
137 showpos = 0x0800, // add '+' to positive integers
138 scientific= 0x1000, // scientific float output
139 fixed = 0x2000 // fixed float output
140 };
141
142 static const int basefield; // bin | oct | dec | hex
143 static const int adjustfield; // left | right | internal
144 static const int floatfield; // scientific | fixed
145
146 int flags() const;
147 int flags( int f );
148 int setf( int bits );
149 int setf( int bits, int mask );
150 int unsetf( int bits );
151
152 void reset();
153
154 int width() const;
155 int width( int );
156 int fill() const;
157 int fill( int );
158 int precision() const;
159 int precision( int );
160
161private:
162 long input_int();
163 void init();
164 Q3TextStream &output_int( int, ulong, bool );
165 QIODevice *dev;
166
167 int fflags;
168 int fwidth;
169 int fillchar;
170 int fprec;
171 bool doUnicodeHeader;
172 bool owndev;
173 QTextCodec *mapper;
174 QTextCodec::ConverterState mapperReadState;
175 QTextCodec::ConverterState mapperWriteState;
176 Q3TextStreamPrivate * d;
177 QChar unused1; // ### remove in Qt 4.0
178 bool latin1;
179 bool internalOrder;
180 bool networkOrder;
181 void *unused2; // ### remove in Qt 4.0
182
183 QChar eat_ws();
184 uint ts_getline( QChar* );
185 void ts_ungetc( QChar );
186 QChar ts_getc();
187 uint ts_getbuf( QChar*, uint );
188 void ts_putc(int);
189 void ts_putc(QChar);
190 bool ts_isspace(QChar);
191 bool ts_isdigit(QChar);
192 ulong input_bin();
193 ulong input_oct();
194 ulong input_dec();
195 ulong input_hex();
196 double input_double();
197 Q3TextStream &writeBlock( const char* p, uint len );
198 Q3TextStream &writeBlock( const QChar* p, uint len );
199
200private: // Disabled copy constructor and operator=
201#if defined(Q_DISABLE_COPY)
202 Q3TextStream( const Q3TextStream & );
203 Q3TextStream &operator=( const Q3TextStream & );
204#endif
205};
206
207/*****************************************************************************
208 Q3TextStream inline functions
209 *****************************************************************************/
210
211inline QIODevice *Q3TextStream::device() const
212{ return dev; }
213
214inline bool Q3TextStream::atEnd() const
215{ return dev ? dev->atEnd() : FALSE; }
216
217inline bool Q3TextStream::eof() const
218{ return atEnd(); }
219
220inline int Q3TextStream::flags() const
221{ return fflags; }
222
223inline int Q3TextStream::flags( int f )
224{ int oldf = fflags; fflags = f; return oldf; }
225
226inline int Q3TextStream::setf( int bits )
227{ int oldf = fflags; fflags |= bits; return oldf; }
228
229inline int Q3TextStream::setf( int bits, int mask )
230{ int oldf = fflags; fflags = (fflags & ~mask) | (bits & mask); return oldf; }
231
232inline int Q3TextStream::unsetf( int bits )
233{ int oldf = fflags; fflags &= ~bits; return oldf; }
234
235inline int Q3TextStream::width() const
236{ return fwidth; }
237
238inline int Q3TextStream::width( int w )
239{ int oldw = fwidth; fwidth = w; return oldw; }
240
241inline int Q3TextStream::fill() const
242{ return fillchar; }
243
244inline int Q3TextStream::fill( int f )
245{ int oldc = fillchar; fillchar = f; return oldc; }
246
247inline int Q3TextStream::precision() const
248{ return fprec; }
249
250inline int Q3TextStream::precision( int p )
251{ int oldp = fprec; fprec = p; return oldp; }
252
253/*!
254 Returns one character from the stream, or EOF.
255*/
256inline QChar Q3TextStream::ts_getc()
257{ QChar r; return ( ts_getbuf( &r,1 ) == 1 ? r : QChar((ushort)0xffff) ); }
258
259/*****************************************************************************
260 Q3TextStream manipulators
261 *****************************************************************************/
262
263typedef Q3TextStream & (*Q3TSFUNC)(Q3TextStream &);// manipulator function
264typedef int (Q3TextStream::*Q3TSMFI)(int); // manipulator w/int argument
265
266class Q_COMPAT_EXPORT Q3TSManip { // text stream manipulator
267public:
268 Q3TSManip( Q3TSMFI m, int a ) { mf=m; arg=a; }
269 void exec( Q3TextStream &s ) { (s.*mf)(arg); }
270private:
271 Q3TSMFI mf; // Q3TextStream member function
272 int arg; // member function argument
273};
274
275Q_COMPAT_EXPORT inline Q3TextStream &operator>>( Q3TextStream &s, Q3TSFUNC f )
276{ return (*f)( s ); }
277
278Q_COMPAT_EXPORT inline Q3TextStream &operator<<( Q3TextStream &s, Q3TSFUNC f )
279{ return (*f)( s ); }
280
281Q_COMPAT_EXPORT inline Q3TextStream &operator<<( Q3TextStream &s, Q3TSManip m )
282{ m.exec(s); return s; }
283
284Q_COMPAT_EXPORT Q3TextStream &bin( Q3TextStream &s ); // set bin notation
285Q_COMPAT_EXPORT Q3TextStream &oct( Q3TextStream &s ); // set oct notation
286Q_COMPAT_EXPORT Q3TextStream &dec( Q3TextStream &s ); // set dec notation
287Q_COMPAT_EXPORT Q3TextStream &hex( Q3TextStream &s ); // set hex notation
288Q_COMPAT_EXPORT Q3TextStream &endl( Q3TextStream &s ); // insert EOL ('\n')
289Q_COMPAT_EXPORT Q3TextStream &flush( Q3TextStream &s ); // flush output
290Q_COMPAT_EXPORT Q3TextStream &ws( Q3TextStream &s ); // eat whitespace on input
291Q_COMPAT_EXPORT Q3TextStream &reset( Q3TextStream &s ); // set default flags
292
293QT_END_NAMESPACE
294
295QT_END_HEADER
296
297#endif // Q3TEXTSTREAM_H
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