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//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 <eaf@geocities.com>
@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
|
