1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
//C- -*- C++ -*-
//C- -------------------------------------------------------------------
//C- DjVuLibre-3.5
//C- Copyright (c) 2002 Leon Bottou and Yann Le Cun.
//C- Copyright (c) 2001 AT&T
//C-
//C- This software is subject to, and may be distributed under, the
//C- GNU General Public License, Version 2. The license should have
//C- accompanied the software or you may obtain a copy of the license
//C- from the Free Software Foundation at http://www.fsf.org .
//C-
//C- This program is distributed in the hope that it will be useful,
//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//C- GNU General Public License for more details.
//C-
//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library
//C- distributed by Lizardtech Software. On July 19th 2002, Lizardtech
//C- Software authorized us to replace the original DjVu(r) Reference
//C- Library notice by the following text (see doc/lizard2002.djvu):
//C-
//C- ------------------------------------------------------------------
//C- | DjVu (r) Reference Library (v. 3.5)
//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
//C- | The DjVu Reference Library is protected by U.S. Pat. No.
//C- | 6,058,214 and patents pending.
//C- |
//C- | This software is subject to, and may be distributed under, the
//C- | GNU General Public License, Version 2. The license should have
//C- | accompanied the software or you may obtain a copy of the license
//C- | from the Free Software Foundation at http://www.fsf.org .
//C- |
//C- | The computer code originally released by LizardTech under this
//C- | license and unmodified by other parties is deemed "the LIZARDTECH
//C- | ORIGINAL CODE." Subject to any third party intellectual property
//C- | claims, LizardTech grants recipient a worldwide, royalty-free,
//C- | non-exclusive license to make, use, sell, or otherwise dispose of
//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the
//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU
//C- | General Public License. This grant only confers the right to
//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to
//C- | the extent such infringement is reasonably necessary to enable
//C- | recipient to make, have made, practice, sell, or otherwise dispose
//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to
//C- | any greater extent that may be necessary to utilize further
//C- | modifications or combinations.
//C- |
//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
//C- +------------------------------------------------------------------
//
// $Id: DjVmDir0.h,v 1.8 2003/11/07 22:08:20 leonb Exp $
// $Name: release_3_5_15 $
#ifndef _DJVMDIR0_H
#define _DJVMDIR0_H
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#if NEED_GNUG_PRAGMAS
# pragma interface
#endif
#include "GString.h"
#ifdef HAVE_NAMESPACES
namespace DJVU {
# ifdef NOT_DEFINED // Just to fool emacs c++ mode
}
#endif
#endif
class ByteStream;
/** @name DjVmDir0.h
Files #"DjVmDir0.h"# and #"DjVmDir0.cpp"# contain implementation of
\Ref{DjVmDir0} class responsible for reading and writing the directory
of a multipage all-in-one-file DjVu document (usually referred to as
{\bf DjVm} document.
This is {\bf not} a navigation directory, which lists all the pages
in a multipage document. The navigation directory is supported by class
\Ref{DjVuNavDir}. This is the directory of a DjVm archive.
@memo Directory of DjVu all-in-one-file DjVu documents.
@author Andrei Erofeev <[email protected]>
@version #$Id: DjVmDir0.h,v 1.8 2003/11/07 22:08:20 leonb Exp $# */
//@{
/** Directory of all-in-one-file DjVu documents (also known as DjVm documents).
This class can read and write the directory (table of contents, in other
words) of a DjVm document. This table of contents lists all {\bf files}
included into the document, not {\bf pages} like \Ref{DjVuNavDir} does.
It is normally stored in the document inside {\bf DIR0} chunk where
{\bf "0"} refers to the version number.
An object of this class can be created either as a result of the decoding
of an existing DjVm file, or manually by calling the default constructor
and adding later directory entries by means of \Ref{add_file}() function.
You normally will not want to create or decode this directory manually.
\Ref{DjVmFile} class will do it for you. */
class DjVmDir0 : public GPEnabled
{
public:
/** Describes a file record inside a DjVm document (archive) */
class FileRec;
private:
GMap<GUTF8String, GP<FileRec> > name2file;
GPArray<FileRec> num2file;
protected:
/// Default constructor
DjVmDir0(void) {};
public:
/// Copy constructor
DjVmDir0(const DjVmDir0 & d);
static GP<DjVmDir0> create(void) {return new DjVmDir0;}
virtual ~DjVmDir0(void) {};
/// Returns the number of files in the DjVm archive
int get_files_num(void) const;
/// Returns the file record with name #name#
GP<FileRec> get_file(const GUTF8String &name);
/// Returns the file record number #file_num#
GP<FileRec> get_file(int file_num);
/** Creates a new file record with name #name# at offset
#offset# and size #size#, which is in IFF format if
#iff_file# is #TRUE#. */
void add_file(const GUTF8String &name, bool iff_file,
int offset=-1, int size=-1);
/// Returns the size of the directory if it were encoded in #DIR0# chunk
int get_size(void) const;
/** Encodes the directory in #DIR0# chunk into the specified
\Ref{ByteStream} */
void encode(ByteStream & bs);
/** Decodes the directory from #DIR0# chunk from the specified
\Ref{ByteStream} */
void decode(ByteStream & bs);
};
/** Describes a file record inside a DjVm document (archive) */
class DjVmDir0::FileRec : public GPEnabled
{
public:
/// Name of the file.
GUTF8String name;
/// 1 if the file is in IFF format.
bool iff_file;
/// Offset of the file in the archive.
int offset;
/// Size of the file
int size;
friend int operator==(const FileRec & f1, const FileRec & f2);
/// Constructs the #FileRec# object
FileRec(const GUTF8String &name, bool iff_file,
int offset=-1, int size=-1);
/// Default constructor
FileRec(void);
virtual ~FileRec(void);
};
inline
DjVmDir0::FileRec::FileRec(
const GUTF8String &name_in, bool iff_file_in, int offset_in, int size_in)
: name(name_in), iff_file(iff_file_in), offset(offset_in), size(size_in)
{
}
inline
DjVmDir0::FileRec::FileRec(void) : iff_file(0), offset(-1), size(-1)
{
}
inline
DjVmDir0::FileRec::~FileRec(void)
{
}
inline int
DjVmDir0::get_files_num(void) const
{
return num2file.size();
}
inline
DjVmDir0::DjVmDir0(const DjVmDir0 & d) :
name2file(d.name2file), num2file(d.num2file)
{
}
//@}
#ifdef HAVE_NAMESPACES
}
# ifndef NOT_USING_DJVU_NAMESPACE
using namespace DJVU;
# endif
#endif
#endif
|
