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Diffstat (limited to 'kviewshell/plugins/djvu/libdjvu/DjVmDir0.h')
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1 files changed, 217 insertions, 0 deletions
diff --git a/kviewshell/plugins/djvu/libdjvu/DjVmDir0.h b/kviewshell/plugins/djvu/libdjvu/DjVmDir0.h new file mode 100644 index 00000000..c17c795e --- /dev/null +++ b/kviewshell/plugins/djvu/libdjvu/DjVmDir0.h @@ -0,0 +1,217 @@ +//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 <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 |