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//C- -*- C++ -*-
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//C- -------------------------------------------------------------------
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//C- DjVuLibre-3.5
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//C- Copyright (c) 2002 Leon Bottou and Yann Le Cun.
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//C- Copyright (c) 2001 AT&T
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//C-
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//C- This software is subject to, and may be distributed under, the
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//C- GNU General Public License, Version 2. The license should have
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//C- accompanied the software or you may obtain a copy of the license
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//C- from the Free Software Foundation at http://www.fsf.org .
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//C-
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//C- This program is distributed in the hope that it will be useful,
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//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
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//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//C- GNU General Public License for more details.
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//C-
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//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library
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//C- distributed by Lizardtech Software. On July 19th 2002, Lizardtech
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//C- Software authorized us to replace the original DjVu(r) Reference
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//C- Library notice by the following text (see doc/lizard2002.djvu):
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//C-
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//C- ------------------------------------------------------------------
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//C- | DjVu (r) Reference Library (v. 3.5)
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//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
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//C- | The DjVu Reference Library is protected by U.S. Pat. No.
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//C- | 6,058,214 and patents pending.
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//C- |
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//C- | This software is subject to, and may be distributed under, the
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//C- | GNU General Public License, Version 2. The license should have
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//C- | accompanied the software or you may obtain a copy of the license
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//C- | from the Free Software Foundation at http://www.fsf.org .
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//C- |
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//C- | The computer code originally released by LizardTech under this
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//C- | license and unmodified by other parties is deemed "the LIZARDTECH
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//C- | ORIGINAL CODE." Subject to any third party intellectual property
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//C- | claims, LizardTech grants recipient a worldwide, royalty-free,
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//C- | non-exclusive license to make, use, sell, or otherwise dispose of
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//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the
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//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU
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//C- | General Public License. This grant only confers the right to
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//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to
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//C- | the extent such infringement is reasonably necessary to enable
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//C- | recipient to make, have made, practice, sell, or otherwise dispose
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//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to
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//C- | any greater extent that may be necessary to utilize further
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//C- | modifications or combinations.
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//C- |
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//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
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//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
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//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
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//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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//C- +------------------------------------------------------------------
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//
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// $Id: DjVmDir0.cpp,v 1.8 2003/11/07 22:08:20 leonb Exp $
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// $Name: release_3_5_15 $
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#if NEED_GNUG_PRAGMAS
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# pragma implementation
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#endif
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#include "DjVmDir0.h"
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#include "ByteStream.h"
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#include "debug.h"
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#ifdef HAVE_NAMESPACES
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namespace DJVU {
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# ifdef NOT_DEFINED // Just to fool emacs c++ mode
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}
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#endif
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#endif
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int
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DjVmDir0::get_size(void) const
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// WARNING! make sure, that get_size(), encode() and decode() are in sync
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{
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int size=0;
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size+=2; // number of files
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for(int i=0;i<num2file.size();i++)
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{
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FileRec & file=*num2file[i];
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size+=file.name.length()+1; // file name
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size+=1; // is IFF file
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size+=4; // file offset
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size+=4; // file size
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};
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return size;
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}
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#ifndef NEED_DECODER_ONLY
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void
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DjVmDir0::encode(ByteStream & bs)
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// WARNING! make sure, that get_size(), encode() and decode() are in sync
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{
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bs.write16(num2file.size());
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for(int i=0;i<num2file.size();i++)
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{
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FileRec & file=*num2file[i];
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bs.writestring(file.name);
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bs.write8(0);
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bs.write8(file.iff_file);
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bs.write32(file.offset);
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bs.write32(file.size);
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}
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}
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#endif
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void
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DjVmDir0::decode(ByteStream & bs)
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// WARNING! make sure, that get_size(), encode() and decode() are in sync
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{
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name2file.empty();
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num2file.empty();
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for(int i=bs.read16();i>0;i--)
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{
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GUTF8String name;
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char ch;
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while(bs.read(&ch, 1) && ch) name+=ch;
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bool iff_file=bs.read8()?true:false;
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int offset=bs.read32();
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int size=bs.read32();
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add_file(name, iff_file, offset, size);
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};
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}
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GP<DjVmDir0::FileRec>
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DjVmDir0::get_file(const GUTF8String &name)
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{
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if (name2file.contains(name))
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return name2file[name];
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return 0;
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}
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GP<DjVmDir0::FileRec>
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DjVmDir0::get_file(int file_num)
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{
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if (file_num<num2file.size()) return num2file[file_num];
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return 0;
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}
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void
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DjVmDir0::add_file(
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const GUTF8String &name, bool iff_file, int offset, int size)
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{
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DEBUG_MSG("DjVmDir0::add_file(): name='" << name << "', iff=" << iff_file <<
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", offset=" << offset << "\n");
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if (name.search('/') >= 0)
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G_THROW( ERR_MSG("DjVmDir0.no_slash") );
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GP<FileRec> file=new FileRec(name, iff_file, offset, size);
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name2file[name]=file;
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num2file.resize(num2file.size());
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num2file[num2file.size()-1]=file;
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}
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#ifdef HAVE_NAMESPACES
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}
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# ifndef NOT_USING_DJVU_NAMESPACE
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using namespace DJVU;
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# endif
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#endif
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