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1 | /**************************************************************************** | ||
2 | ** $Id$ | ||
3 | ** | ||
4 | ** Definition of QBitArray class | ||
5 | ** | ||
6 | ** Created : 940118 | ||
7 | ** | ||
8 | ** Copyright (C) 1992-2000 Trolltech AS. All rights reserved. | ||
9 | ** | ||
10 | ** This file is part of the tools module of the Qt GUI Toolkit. | ||
11 | ** | ||
12 | ** This file may be distributed under the terms of the Q Public License | ||
13 | ** as defined by Trolltech AS of Norway and appearing in the file | ||
14 | ** LICENSE.QPL included in the packaging of this file. | ||
15 | ** | ||
16 | ** This file may be distributed and/or modified under the terms of the | ||
17 | ** GNU General Public License version 2 as published by the Free Software | ||
18 | ** Foundation and appearing in the file LICENSE.GPL included in the | ||
19 | ** packaging of this file. | ||
20 | ** | ||
21 | ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition | ||
22 | ** licenses may use this file in accordance with the Qt Commercial License | ||
23 | ** Agreement provided with the Software. | ||
24 | ** | ||
25 | ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE | ||
26 | ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | ||
27 | ** | ||
28 | ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for | ||
29 | ** information about Qt Commercial License Agreements. | ||
30 | ** See http://www.trolltech.com/qpl/ for QPL licensing information. | ||
31 | ** See http://www.trolltech.com/gpl/ for GPL licensing information. | ||
32 | ** | ||
33 | ** Contact info@trolltech.com if any conditions of this licensing are | ||
34 | ** not clear to you. | ||
35 | ** | ||
36 | **********************************************************************/ | ||
37 | |||
38 | #ifndef QBITARRAY_H | ||
39 | #define QBITARRAY_H | ||
40 | |||
41 | #ifndef QT_H | ||
42 | #include "qstring.h" | ||
43 | #endif // QT_H | ||
44 | |||
45 | |||
46 | /***************************************************************************** | ||
47 | QBitVal class; a context class for QBitArray::operator[] | ||
48 | *****************************************************************************/ | ||
49 | |||
50 | class QBitArray; | ||
51 | |||
52 | class Q_EXPORT QBitVal | ||
53 | { | ||
54 | private: | ||
55 | QBitArray *array; | ||
56 | uint index; | ||
57 | public: | ||
58 | QBitVal( QBitArray *a, uint i ) : array(a), index(i) {} | ||
59 | operator int(); | ||
60 | QBitVal &operator=( const QBitVal &v ); | ||
61 | QBitVal &operator=( bool v ); | ||
62 | }; | ||
63 | |||
64 | |||
65 | /***************************************************************************** | ||
66 | QBitArray class | ||
67 | *****************************************************************************/ | ||
68 | |||
69 | class Q_EXPORT QBitArray : public QByteArray | ||
70 | { | ||
71 | public: | ||
72 | QBitArray(); | ||
73 | QBitArray( uint size ); | ||
74 | QBitArray( const QBitArray &a ) : QByteArray( a ) {} | ||
75 | |||
76 | QBitArray &operator=( const QBitArray & ); | ||
77 | |||
78 | uint size() const; | ||
79 | bool resize( uint size ); | ||
80 | |||
81 | bool fill( bool v, int size = -1 ); | ||
82 | |||
83 | void detach(); | ||
84 | QBitArray copy() const; | ||
85 | |||
86 | bool testBit( uint index ) const; | ||
87 | void setBit( uint index ); | ||
88 | void setBit( uint index, bool value ); | ||
89 | void clearBit( uint index ); | ||
90 | bool toggleBit( uint index ); | ||
91 | |||
92 | bool at( uint index ) const; | ||
93 | QBitVal operator[]( int index ); | ||
94 | bool operator[]( int index ) const; | ||
95 | |||
96 | QBitArray &operator&=( const QBitArray & ); | ||
97 | QBitArray &operator|=( const QBitArray & ); | ||
98 | QBitArray &operator^=( const QBitArray & ); | ||
99 | QBitArray operator~() const; | ||
100 | |||
101 | protected: | ||
102 | struct bitarr_data : public QGArray::array_data { | ||
103 | uint nbits; | ||
104 | }; | ||
105 | array_data *newData() { return new bitarr_data; } | ||
106 | voiddeleteData( array_data *d ) { delete (bitarr_data*)d; } | ||
107 | private: | ||
108 | void pad0(); | ||
109 | }; | ||
110 | |||
111 | |||
112 | inline QBitArray &QBitArray::operator=( const QBitArray &a ) | ||
113 | { return (QBitArray&)assign( a ); } | ||
114 | |||
115 | inline uint QBitArray::size() const | ||
116 | { return ((bitarr_data*)sharedBlock())->nbits; } | ||
117 | |||
118 | inline void QBitArray::setBit( uint index, bool value ) | ||
119 | { if ( value ) setBit(index); else clearBit(index); } | ||
120 | |||
121 | inline bool QBitArray::at( uint index ) const | ||
122 | { return testBit(index); } | ||
123 | |||
124 | inline QBitVal QBitArray::operator[]( int index ) | ||
125 | { return QBitVal( (QBitArray*)this, index ); } | ||
126 | |||
127 | inline bool QBitArray::operator[]( int index ) const | ||
128 | { return testBit( index ); } | ||
129 | |||
130 | |||
131 | /***************************************************************************** | ||
132 | Misc. QBitArray operator functions | ||
133 | *****************************************************************************/ | ||
134 | |||
135 | Q_EXPORT QBitArray operator&( const QBitArray &, const QBitArray & ); | ||
136 | Q_EXPORT QBitArray operator|( const QBitArray &, const QBitArray & ); | ||
137 | Q_EXPORT QBitArray operator^( const QBitArray &, const QBitArray & ); | ||
138 | |||
139 | |||
140 | inline QBitVal::operator int() | ||
141 | { | ||
142 | return array->testBit( index ); | ||
143 | } | ||
144 | |||
145 | inline QBitVal &QBitVal::operator=( const QBitVal &v ) | ||
146 | { | ||
147 | array->setBit( index, v.array->testBit(v.index) ); | ||
148 | return *this; | ||
149 | } | ||
150 | |||
151 | inline QBitVal &QBitVal::operator=( bool v ) | ||
152 | { | ||
153 | array->setBit( index, v ); | ||
154 | return *this; | ||
155 | } | ||
156 | |||
157 | |||
158 | /***************************************************************************** | ||
159 | QBitArray stream functions | ||
160 | *****************************************************************************/ | ||
161 | #ifndef QT_NO_DATASTREAM | ||
162 | Q_EXPORT QDataStream &operator<<( QDataStream &, const QBitArray & ); | ||
163 | Q_EXPORT QDataStream &operator>>( QDataStream &, QBitArray & ); | ||
164 | #endif | ||
165 | |||
166 | #endif // QBITARRAY_H | ||