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chmfile.h

00001 /*
00002 
00003   Copyright (C) 2003  Razvan Cojocaru <razvanco@gmx.net>
00004  
00005   This program is free software; you can redistribute it and/or modify
00006   it under the terms of the GNU General Public License as published by
00007   the Free Software Foundation; either version 2 of the License, or
00008   (at your option) any later version.
00009   
00010   This program is distributed in the hope that it will be useful,
00011   but WITHOUT ANY WARRANTY; without even the implied warranty of
00012   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013   GNU General Public License for more details.
00014   
00015   You should have received a copy of the GNU General Public License
00016   along with this program; if not, write to the Free Software
00017   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 
00019 */
00020 
00021 
00022 #ifndef __CHMFILE_H_
00023 #define __CHMFILE_H_
00024 
00025 #include <config.h>
00026 #include <chm_lib.h>
00027 #include <wx/filefn.h>
00028 #include <wx/string.h>
00029 #include <wx/hashmap.h>
00030 #include <wx/font.h>
00031 #include <wx/string.h>
00032 
00033 
00034 // Forward declarations.
00035 class wxTreeCtrl;
00036 class CHMListCtrl;
00037 
00038 
00040 WX_DECLARE_STRING_HASH_MAP(wxString, CHMSearchResults);
00042 WX_DECLARE_HASH_MAP( int, wxString, wxIntegerHash, wxIntegerEqual, CHMIDMap );
00043 
00044 
00046 #define MAX_SEARCH_RESULTS 512
00047 
00048 
00049 #ifdef wxUSE_UNICODE
00050 
00051 #       define CURRENT_CHAR_STRING(x) \
00052         wxString(reinterpret_cast<const char *>(x), wxConvISO8859_1)
00053 
00054 #else
00055 
00056 #       define CURRENT_CHAR_STRING(x) \
00057         wxString(reinterpret_cast<const char *>(x))
00058 
00059 #endif
00060 
00061 
00063 class CHMFile {
00064 public:
00066         CHMFile();
00067         
00073         CHMFile(const wxString& archiveName);
00074 
00076         ~CHMFile();
00077 
00078         
00085         wxString HomePage() const { return _home; }
00086 
00094         wxString TopicsFile() const { return _topicsFile; }
00095 
00102         wxString ArchiveName() const { return _filename; }
00103 
00111         wxString IndexFile() const { return _indexFile; }
00112 
00118         wxString Title() const { return _title; }
00119 
00125         wxString DefaultFont() const { return _font; }
00126 
00133         bool IsOk() const { return _chmFile != NULL; }
00134 
00136         bool HasChanged();
00137 
00143         wxFontEncoding DesiredEncoding() const { return _enc; }
00144 
00150         bool LoadCHM(const wxString& archiveName);
00151 
00153         void CloseCHM();
00154 
00164         bool GetTopicsTree(wxTreeCtrl *toBuild);
00165 
00175         bool GetIndex(CHMListCtrl* toBuild);
00176 
00177 
00183         bool LoadContextIDs();
00184 
00191         bool IsValidCID( const int contextID );
00192 
00199         wxString GetPageByCID( const int contextID );
00200 
00205         bool AreContextIDsLoaded() const { return !_cidMap.empty(); } 
00206 
00217         bool IndexSearch(const wxString& text, bool wholeWords, 
00218                          bool titlesOnly, CHMSearchResults *results);
00219 
00230         bool ResolveObject(const wxString& fileName, chmUnitInfo *ui);
00231 
00241         size_t RetrieveObject(chmUnitInfo *ui, unsigned char *buffer,
00242                               off_t fileOffset, size_t bufferSize);
00243 
00244 private:
00246         wxFontEncoding GetFontEncFromCharSet(int cs);
00247 
00249         bool GetArchiveInfo();
00250 
00252         u_int32_t GetLeafNodeOffset(const wxString& text,
00253                                     u_int32_t initalOffset,
00254                                     u_int32_t buffSize,
00255                                     u_int16_t treeDepth,
00256                                     chmUnitInfo *ui);
00257 
00259         bool ProcessWLC(u_int64_t wlc_count, u_int64_t wlc_size,
00260                         u_int32_t wlc_offset, unsigned char ds,
00261                         unsigned char dr, unsigned char cs,
00262                         unsigned char cr, unsigned char ls,
00263                         unsigned char lr, chmUnitInfo *uifmain,
00264                         chmUnitInfo* uitbl, chmUnitInfo *uistrings,
00265                         chmUnitInfo* topics, chmUnitInfo *urlstr,
00266                         CHMSearchResults *results);
00267 
00269         void GetFileAsString(wxString& str, chmUnitInfo *ui);
00270 
00272         bool InfoFromWindows();
00273 
00275         bool InfoFromSystem();
00276 
00277 private:
00278         chmFile* _chmFile;
00279         wxString _filename;
00280         wxString _home;
00281         wxString _topicsFile;
00282         wxString _indexFile;
00283         wxString _title;
00284         wxString _font;
00285         wxFontEncoding _enc;
00286         CHMIDMap _cidMap;
00287 
00288 private:
00290         CHMFile(const CHMFile&);
00291 
00293         CHMFile& operator=(const CHMFile&);
00294 };
00295 
00296 
00297 #endif // __CHMFILE_H_

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