kviewshell
DjVuNavDir.h
Go to the documentation of this file.00001 //C- -*- C++ -*- 00002 //C- ------------------------------------------------------------------- 00003 //C- DjVuLibre-3.5 00004 //C- Copyright (c) 2002 Leon Bottou and Yann Le Cun. 00005 //C- Copyright (c) 2001 AT&T 00006 //C- 00007 //C- This software is subject to, and may be distributed under, the 00008 //C- GNU General Public License, Version 2. The license should have 00009 //C- accompanied the software or you may obtain a copy of the license 00010 //C- from the Free Software Foundation at http://www.fsf.org . 00011 //C- 00012 //C- This program is distributed in the hope that it will be useful, 00013 //C- but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 //C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 //C- GNU General Public License for more details. 00016 //C- 00017 //C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library 00018 //C- distributed by Lizardtech Software. On July 19th 2002, Lizardtech 00019 //C- Software authorized us to replace the original DjVu(r) Reference 00020 //C- Library notice by the following text (see doc/lizard2002.djvu): 00021 //C- 00022 //C- ------------------------------------------------------------------ 00023 //C- | DjVu (r) Reference Library (v. 3.5) 00024 //C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved. 00025 //C- | The DjVu Reference Library is protected by U.S. Pat. No. 00026 //C- | 6,058,214 and patents pending. 00027 //C- | 00028 //C- | This software is subject to, and may be distributed under, the 00029 //C- | GNU General Public License, Version 2. The license should have 00030 //C- | accompanied the software or you may obtain a copy of the license 00031 //C- | from the Free Software Foundation at http://www.fsf.org . 00032 //C- | 00033 //C- | The computer code originally released by LizardTech under this 00034 //C- | license and unmodified by other parties is deemed "the LIZARDTECH 00035 //C- | ORIGINAL CODE." Subject to any third party intellectual property 00036 //C- | claims, LizardTech grants recipient a worldwide, royalty-free, 00037 //C- | non-exclusive license to make, use, sell, or otherwise dispose of 00038 //C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the 00039 //C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU 00040 //C- | General Public License. This grant only confers the right to 00041 //C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to 00042 //C- | the extent such infringement is reasonably necessary to enable 00043 //C- | recipient to make, have made, practice, sell, or otherwise dispose 00044 //C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to 00045 //C- | any greater extent that may be necessary to utilize further 00046 //C- | modifications or combinations. 00047 //C- | 00048 //C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY 00049 //C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 00050 //C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF 00051 //C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 00052 //C- +------------------------------------------------------------------ 00053 // 00054 // $Id: DjVuNavDir.h,v 1.8 2003/11/07 22:08:21 leonb Exp $ 00055 // $Name: release_3_5_15 $ 00056 00057 #ifndef _DJVUNAVDIR_H 00058 #define _DJVUNAVDIR_H 00059 #ifdef HAVE_CONFIG_H 00060 #include "config.h" 00061 #endif 00062 #if NEED_GNUG_PRAGMAS 00063 # pragma interface 00064 #endif 00065 00066 00067 #include "GString.h" 00068 #include "GThreads.h" 00069 #include "GURL.h" 00070 00071 #ifdef HAVE_NAMESPACES 00072 namespace DJVU { 00073 # ifdef NOT_DEFINED // Just to fool emacs c++ mode 00074 } 00075 #endif 00076 #endif 00077 00078 class ByteStream; 00079 00094 00095 //***************************************************************************** 00096 //********************* Note: this class is thread-safe *********************** 00097 //***************************************************************************** 00098 00118 class DjVuNavDir : public GPEnabled 00119 { 00120 private: 00121 GCriticalSection lock; 00122 GURL baseURL; 00123 GArray<GUTF8String> page2name; 00124 GMap<GUTF8String, int> name2page; 00125 GMap<GURL, int> url2page; 00126 protected: 00127 DjVuNavDir(const GURL &dir_url); 00128 DjVuNavDir(ByteStream & str, const GURL &dir_url); 00129 00130 public: 00131 int get_memory_usage(void) const { return 1024; }; 00132 00137 static GP<DjVuNavDir> create(const GURL &dir_url) 00138 {return new DjVuNavDir(dir_url);} 00139 00143 static GP<DjVuNavDir> create(ByteStream & str, const GURL &dir_url) 00144 { return new DjVuNavDir(str,dir_url); } 00145 00146 virtual ~DjVuNavDir(void) {}; 00147 00149 void decode(ByteStream & str); 00150 00152 void encode(ByteStream & str); 00153 00162 void insert_page(int where, const char * name); 00163 00165 void delete_page(int page_num); 00166 00168 int get_pages_num(void) const; 00171 int url_to_page(const GURL & url) const; 00174 int name_to_page(const char * name) const; 00177 GURL page_to_url(int page) const; 00180 GUTF8String page_to_name(int page) const; 00181 }; 00182 00184 00185 00186 #ifdef HAVE_NAMESPACES 00187 } 00188 # ifndef NOT_USING_DJVU_NAMESPACE 00189 using namespace DJVU; 00190 # endif 00191 #endif 00192 #endif