You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
238 lines
6.6 KiB
238 lines
6.6 KiB
//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: DjVuNavDir.cpp,v 1.8 2003/11/07 22:08:21 leonb Exp $
|
|
// $Name: release_3_5_15 $
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
#if NEED_GNUG_PRAGMAS
|
|
# pragma implementation
|
|
#endif
|
|
|
|
#include "DjVuNavDir.h"
|
|
#include "debug.h"
|
|
#include "GException.h"
|
|
#include "GOS.h"
|
|
#include "ByteStream.h"
|
|
#include "GURL.h"
|
|
#include <ctype.h>
|
|
|
|
|
|
|
|
#ifdef HAVE_NAMESPACES
|
|
namespace DJVU {
|
|
# ifdef NOT_DEFINED // Just to fool emacs c++ mode
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
|
|
|
|
DjVuNavDir::DjVuNavDir(const GURL &dirURL)
|
|
{
|
|
if (!dirURL) G_THROW( ERR_MSG("DjVuNavDir.zero_dir") );
|
|
baseURL=dirURL.base();
|
|
}
|
|
|
|
DjVuNavDir::DjVuNavDir(ByteStream & str, const GURL &dirURL)
|
|
{
|
|
if (!dirURL) G_THROW( ERR_MSG("DjVuNavDir.zero_dir") );
|
|
|
|
baseURL=GURL(dirURL).base();
|
|
|
|
decode(str);
|
|
}
|
|
|
|
void
|
|
DjVuNavDir::decode(ByteStream & str)
|
|
{
|
|
GCriticalSectionLock lk(&lock);
|
|
|
|
GList<GUTF8String> tmp_page2name;
|
|
int eof=0;
|
|
while(!eof)
|
|
{
|
|
char buffer[1024];
|
|
char * ptr;
|
|
for(ptr=buffer;ptr-buffer<1024;ptr++)
|
|
if ((eof=!str.read(ptr, 1)) || *ptr=='\n') break;
|
|
if (ptr-buffer==1024) G_THROW( ERR_MSG("DjVuNavDir.long_line") );
|
|
*ptr=0;
|
|
if (!strlen(buffer)) continue;
|
|
|
|
if (!tmp_page2name.contains(buffer))
|
|
tmp_page2name.append(buffer);
|
|
};
|
|
|
|
// Now copying lists to arrays for faster access later
|
|
int pages=tmp_page2name.size();
|
|
page2name.resize(pages-1);
|
|
|
|
int cnt;
|
|
GPosition pos;
|
|
for(pos=tmp_page2name, cnt=0;pos;++pos, cnt++)
|
|
page2name[cnt]=tmp_page2name[pos];
|
|
|
|
// Now creating reverse mapping (strings => numbers)
|
|
for(cnt=0;cnt<pages;cnt++)
|
|
{
|
|
name2page[page2name[cnt]]=cnt;
|
|
url2page[GURL::UTF8(page2name[cnt],baseURL)]=cnt;
|
|
}
|
|
}
|
|
|
|
#ifndef NEED_DECODER_ONLY
|
|
void
|
|
DjVuNavDir::encode(ByteStream & str)
|
|
{
|
|
GCriticalSectionLock lk(&lock);
|
|
|
|
for(int i=0;i<page2name.size();i++)
|
|
{
|
|
GUTF8String & name=page2name[i];
|
|
str.writall((const char*)name, name.length());
|
|
str.writall("\n", 1);
|
|
};
|
|
}
|
|
#endif //NEED_DECODER_ONLY
|
|
|
|
int
|
|
DjVuNavDir::get_pages_num(void) const
|
|
{
|
|
GCriticalSectionLock lk((GCriticalSection *)&lock);
|
|
|
|
return page2name.size();
|
|
}
|
|
|
|
int
|
|
DjVuNavDir::name_to_page(const char * name) const
|
|
{
|
|
GCriticalSectionLock lk((GCriticalSection *)&lock);
|
|
|
|
if (!name2page.contains(name)) return -1;
|
|
return name2page[name];
|
|
}
|
|
|
|
int
|
|
DjVuNavDir::url_to_page(const GURL & url) const
|
|
{
|
|
GCriticalSectionLock lk((GCriticalSection *)&lock);
|
|
|
|
if (!url2page.contains(url)) return -1;
|
|
return url2page[url];
|
|
}
|
|
|
|
GUTF8String
|
|
DjVuNavDir::page_to_name(int page) const
|
|
{
|
|
GCriticalSectionLock lk((GCriticalSection *)&lock);
|
|
|
|
if (page<0)
|
|
G_THROW( ERR_MSG("DjVuNavDir.neg_page") );
|
|
if (page>=page2name.size())
|
|
G_THROW( ERR_MSG("DjVuNavDir.large_page") );
|
|
return page2name[page];
|
|
}
|
|
|
|
GURL
|
|
DjVuNavDir::page_to_url(int page) const
|
|
{
|
|
GCriticalSectionLock lk((GCriticalSection *)&lock);
|
|
|
|
return GURL::UTF8(page_to_name(page),baseURL);
|
|
}
|
|
|
|
void
|
|
DjVuNavDir::insert_page(int where, const char * name)
|
|
{
|
|
GCriticalSectionLock lk((GCriticalSection *)&lock);
|
|
|
|
int pages=page2name.size();
|
|
if (where<0) where=pages;
|
|
|
|
page2name.resize(pages);
|
|
for(int i=pages;i>where;i--)
|
|
page2name[i]=page2name[i-1];
|
|
page2name[where]=name;
|
|
name2page[name]=where;
|
|
url2page[GURL::UTF8(name,baseURL)]=where;
|
|
}
|
|
|
|
#ifndef NEED_DECODER_ONLY
|
|
void
|
|
DjVuNavDir::delete_page(int page_num)
|
|
{
|
|
GCriticalSectionLock lk((GCriticalSection *)&lock);
|
|
|
|
int pages=page2name.size();
|
|
|
|
if (page_num<0 || page_num>=pages)
|
|
G_THROW( ERR_MSG("DjVuNavDir.bad_page") );
|
|
|
|
for(int i=page_num;i<pages-1;i++)
|
|
page2name[i]=page2name[i+1];
|
|
page2name.resize(--pages-1);
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef HAVE_NAMESPACES
|
|
}
|
|
# ifndef NOT_USING_DJVU_NAMESPACE
|
|
using namespace DJVU;
|
|
# endif
|
|
#endif
|