src/os2/iniconf.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/os2/iniconf.cpp
   3 // Purpose:     implementation of wxIniConfig class
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/09/99
   7 // Copyright:   David Webster
   8 // Licence:     wxWindows license
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifndef   WX_PRECOMP
  15   #include  <wx/string.h>
  16   #include  <wx/intl.h>
  17   #include  <wx/event.h>
  18   #include  <wx/app.h>
  19   #include  <wx/utils.h>
  20 #endif  //WX_PRECOMP
  21
  22 #include  <wx/dynarray.h>
  23 #include  <wx/log.h>
  24 #include  <wx/config.h>
  25
  26 #include  <wx/os2/iniconf.h>
  27
  28 #define INCL_PM
  29 #include  <os2.h>
  30
  31 // ----------------------------------------------------------------------------
  32 // constants
  33 // ----------------------------------------------------------------------------
  34
  35 // we replace all path separators with this character
  36 #define PATH_SEP_REPLACE  '_'
  37
  38 // ============================================================================
  39 // implementation
  40 // ============================================================================
  41
  42 // ----------------------------------------------------------------------------
  43 // ctor & dtor
  44 // ----------------------------------------------------------------------------
  45
  46 wxIniConfig::wxIniConfig(const wxString& strAppName,
  47                          const wxString& strVendor,
  48                          const wxString& localFilename,
  49                          const wxString& globalFilename,
  50                          long style)
  51            : wxConfigBase(!strAppName && wxTheApp ? wxTheApp->GetAppName()
  52                                                : strAppName,
  53                           !strVendor ? (wxTheApp ? wxTheApp->GetVendorName()
  54                                                   : strAppName)
  55                                       : strVendor,
  56                           localFilename, globalFilename, style)
  57 {
  58     m_strLocalFilename = localFilename;
  59     if (m_strLocalFilename.IsEmpty())
  60     {
  61         m_strLocalFilename = GetAppName() + ".ini";
  62     }
  63
  64     // append the extension if none given and it's not an absolute file name
  65     // (otherwise we assume that they know what they're doing)
  66     if ( !wxIsPathSeparator(m_strLocalFilename[0u]) &&
  67         m_strLocalFilename.Find('.') == wxNOT_FOUND )
  68     {
  69         m_strLocalFilename << ".ini";
  70     }
  71
  72     // set root path
  73     SetPath("");
  74 }
  75
  76 wxIniConfig::~wxIniConfig()
  77 {
  78 }
  79
  80 // ----------------------------------------------------------------------------
  81 // path management
  82 // ----------------------------------------------------------------------------
  83
  84 void wxIniConfig::SetPath(const wxString& strPath)
  85 {
  86   wxArrayString aParts;
  87
  88   if ( strPath.IsEmpty() ) {
  89     // nothing
  90   }
  91   else if ( strPath[0u] == wxCONFIG_PATH_SEPARATOR ) {
  92     // absolute path
  93     wxSplitPath(aParts, strPath);
  94   }
  95   else {
  96     // relative path, combine with current one
  97     wxString strFullPath = GetPath();
  98     strFullPath << wxCONFIG_PATH_SEPARATOR << strPath;
  99     wxSplitPath(aParts, strFullPath);
 100   }
 101
 102   size_t nPartsCount = aParts.Count();
 103   m_strPath.Empty();
 104   if ( nPartsCount == 0 ) {
 105     // go to the root
 106     m_strGroup = PATH_SEP_REPLACE;
 107   }
 108   else {
 109     // translate
 110     m_strGroup = aParts[0u];
 111     for ( size_t nPart = 1; nPart < nPartsCount; nPart++ ) {
 112       if ( nPart > 1 )
 113         m_strPath << PATH_SEP_REPLACE;
 114       m_strPath << aParts[nPart];
 115     }
 116   }
 117
 118   // other functions assume that all this is true, i.e. there are no trailing
 119   // underscores at the end except if the group is the root one
 120   wxASSERT( (m_strPath.IsEmpty() || m_strPath.Last() != PATH_SEP_REPLACE) &&
 121             (m_strGroup == wxString(PATH_SEP_REPLACE) ||
 122              m_strGroup.Last() != PATH_SEP_REPLACE) );
 123 }
 124
 125 const wxString& wxIniConfig::GetPath() const
 126 {
 127   static wxString s_str;
 128
 129   // always return abs path
 130   s_str = wxCONFIG_PATH_SEPARATOR;
 131
 132   if ( m_strGroup == wxString(PATH_SEP_REPLACE) ) {
 133     // we're at the root level, nothing to do
 134   }
 135   else {
 136     s_str << m_strGroup;
 137     if ( !m_strPath.IsEmpty() )
 138       s_str << wxCONFIG_PATH_SEPARATOR;
 139     for ( const char *p = m_strPath; *p != '\0'; p++ ) {
 140       s_str << (*p == PATH_SEP_REPLACE ? wxCONFIG_PATH_SEPARATOR : *p);
 141     }
 142   }
 143
 144   return s_str;
 145 }
 146
 147 wxString wxIniConfig::GetPrivateKeyName(const wxString& szKey) const
 148 {
 149   wxString strKey;
 150
 151   if ( !m_strPath.IsEmpty() )
 152     strKey << m_strPath << PATH_SEP_REPLACE;
 153
 154   strKey << szKey;
 155
 156   return strKey;
 157 }
 158
 159 wxString wxIniConfig::GetKeyName(const wxString& szKey) const
 160 {
 161   wxString strKey;
 162
 163   if ( m_strGroup != wxString(PATH_SEP_REPLACE) )
 164     strKey << m_strGroup << PATH_SEP_REPLACE;
 165   if ( !m_strPath.IsEmpty() )
 166     strKey << m_strPath << PATH_SEP_REPLACE;
 167
 168   strKey << szKey;
 169
 170   return strKey;
 171 }
 172
 173 // ----------------------------------------------------------------------------
 174 // enumeration
 175 // ----------------------------------------------------------------------------
 176
 177 // not implemented
 178 bool wxIniConfig::GetFirstGroup(wxString& str, long& lIndex) const
 179 {
 180   wxFAIL_MSG("not implemented");
 181
 182   return FALSE;
 183 }
 184
 185 bool wxIniConfig::GetNextGroup (wxString& str, long& lIndex) const
 186 {
 187   wxFAIL_MSG("not implemented");
 188
 189   return FALSE;
 190 }
 191
 192 bool wxIniConfig::GetFirstEntry(wxString& str, long& lIndex) const
 193 {
 194   wxFAIL_MSG("not implemented");
 195
 196   return FALSE;
 197 }
 198
 199 bool wxIniConfig::GetNextEntry (wxString& str, long& lIndex) const
 200 {
 201   wxFAIL_MSG("not implemented");
 202
 203   return FALSE;
 204 }
 205
 206 // ----------------------------------------------------------------------------
 207 // misc info
 208 // ----------------------------------------------------------------------------
 209
 210 // not implemented
 211 size_t wxIniConfig::GetNumberOfEntries(bool bRecursive) const
 212 {
 213   wxFAIL_MSG("not implemented");
 214
 215   return (size_t)-1;
 216 }
 217
 218 size_t wxIniConfig::GetNumberOfGroups(bool bRecursive) const
 219 {
 220   wxFAIL_MSG("not implemented");
 221
 222   return (size_t)-1;
 223 }
 224
 225 bool wxIniConfig::HasGroup(const wxString& strName) const
 226 {
 227   wxFAIL_MSG("not implemented");
 228
 229   return FALSE;
 230 }
 231
 232 bool wxIniConfig::HasEntry(const wxString& strName) const
 233 {
 234   wxFAIL_MSG("not implemented");
 235
 236   return FALSE;
 237 }
 238
 239 // is current group empty?
 240 bool wxIniConfig::IsEmpty() const
 241 {
 242   char szBuf[1024];
 243
 244 //  GetPrivateProfileString(m_strGroup, NULL, "",
 245 //                          szBuf, WXSIZEOF(szBuf), m_strLocalFilename);
 246   if ( !::IsEmpty(szBuf) )
 247     return FALSE;
 248
 249 //  GetProfileString(m_strGroup, NULL, "", szBuf, WXSIZEOF(szBuf));
 250 //  if ( !::IsEmpty(szBuf) )
 251     return FALSE;
 252
 253   return TRUE;
 254 }
 255
 256 // ----------------------------------------------------------------------------
 257 // read/write
 258 // ----------------------------------------------------------------------------
 259
 260 bool wxIniConfig::Read(const wxString& szKey, wxString *pstr) const
 261 {
 262   wxConfigPathChanger path(this, szKey);
 263   wxString strKey = GetPrivateKeyName(path.Name());
 264
 265   char szBuf[1024]; // @@ should dynamically allocate memory...
 266
 267   // first look in the private INI file
 268
 269   // NB: the lpDefault param to GetPrivateProfileString can't be NULL
 270 //  GetPrivateProfileString(m_strGroup, strKey, "",
 271 //                          szBuf, WXSIZEOF(szBuf), m_strLocalFilename);
 272   if ( ::IsEmpty(szBuf) ) {
 273     // now look in win.ini
 274     wxString strKey = GetKeyName(path.Name());
 275 //    GetProfileString(m_strGroup, strKey, "", szBuf, WXSIZEOF(szBuf));
 276   }
 277
 278   if ( ::IsEmpty(szBuf) ) {
 279     return FALSE;
 280   }
 281   else {
 282     *pstr = szBuf ;
 283     return TRUE;
 284   }
 285 }
 286
 287 bool wxIniConfig::Read(const wxString& szKey, wxString *pstr,
 288                        const wxString& szDefault) const
 289 {
 290   wxConfigPathChanger path(this, szKey);
 291   wxString strKey = GetPrivateKeyName(path.Name());
 292
 293   char szBuf[1024]; // @@ should dynamically allocate memory...
 294
 295   // first look in the private INI file
 296
 297   // NB: the lpDefault param to GetPrivateProfileString can't be NULL
 298 //  GetPrivateProfileString(m_strGroup, strKey, "",
 299 //                          szBuf, WXSIZEOF(szBuf), m_strLocalFilename);
 300   if ( ::IsEmpty(szBuf) ) {
 301     // now look in win.ini
 302     wxString strKey = GetKeyName(path.Name());
 303 //    GetProfileString(m_strGroup, strKey, "", szBuf, WXSIZEOF(szBuf));
 304   }
 305
 306   if ( ::IsEmpty(szBuf) ) {
 307     *pstr = szDefault;
 308     return FALSE;
 309   }
 310   else {
 311     *pstr = szBuf ;
 312     return TRUE;
 313   }
 314 }
 315
 316 bool wxIniConfig::Read(const wxString& szKey, long *pl) const
 317 {
 318   wxConfigPathChanger path(this, szKey);
 319   wxString strKey = GetPrivateKeyName(path.Name());
 320
 321   // hack: we have no mean to know if it really found the default value or
 322   // didn't find anything, so we call it twice
 323
 324   static const int nMagic  = 17; // 17 is some "rare" number
 325   static const int nMagic2 = 28; // arbitrary number != nMagic
 326   long lVal = 0; // = GetPrivateProfileInt(m_strGroup, strKey, nMagic, m_strLocalFilename);
 327   if ( lVal != nMagic ) {
 328     // the value was read from the file
 329     *pl = lVal;
 330     return TRUE;
 331   }
 332
 333   // is it really nMagic?
 334 //  lVal = GetPrivateProfileInt(m_strGroup, strKey, nMagic2, m_strLocalFilename);
 335   if ( lVal == nMagic2 ) {
 336     // the nMagic it returned was indeed read from the file
 337     *pl = lVal;
 338     return TRUE;
 339   }
 340
 341   // no, it was just returning the default value, so now look in win.ini
 342 //  *pl = GetProfileInt(GetVendorName(), GetKeyName(szKey), *pl);
 343
 344   return TRUE;
 345 }
 346
 347 bool wxIniConfig::Write(const wxString& szKey, const wxString& szValue)
 348 {
 349   wxConfigPathChanger path(this, szKey);
 350   wxString strKey = GetPrivateKeyName(path.Name());
 351
 352   bool bOk = FALSE; // = WritePrivateProfileString(m_strGroup, strKey,
 353 //                                       szValue, m_strLocalFilename) != 0;
 354
 355   if ( !bOk )
 356     wxLogLastError("WritePrivateProfileString");
 357
 358   return bOk;
 359 }
 360
 361 bool wxIniConfig::Write(const wxString& szKey, long lValue)
 362 {
 363   // ltoa() is not ANSI :-(
 364   char szBuf[40];   // should be good for sizeof(long) <= 16 (128 bits)
 365   sprintf(szBuf, "%ld", lValue);
 366
 367   return Write(szKey, szBuf);
 368 }
 369
 370 bool wxIniConfig::Flush(bool /* bCurrentOnly */)
 371 {
 372   // this is just the way it works
 373 //  return WritePrivateProfileString(NULL, NULL, NULL, m_strLocalFilename) != 0;
 374   return FALSE;
 375 }
 376
 377 // ----------------------------------------------------------------------------
 378 // delete
 379 // ----------------------------------------------------------------------------
 380
 381 bool wxIniConfig::DeleteEntry(const wxString& szKey, bool bGroupIfEmptyAlso)
 382 {
 383   // passing NULL as value to WritePrivateProfileString deletes the key
 384 //  if ( !Write(szKey, (const char *)NULL) )
 385 //    return FALSE;
 386   wxConfigPathChanger path(this, szKey);
 387   wxString strKey = GetPrivateKeyName(path.Name());
 388
 389 //  if (WritePrivateProfileString(m_strGroup, szKey,
 390 //                                         (const char*) NULL, m_strLocalFilename) == 0)
 391 //    return FALSE;
 392
 393   if ( !bGroupIfEmptyAlso || !IsEmpty() )
 394     return TRUE;
 395
 396   // delete the current group too
 397   bool bOk = FALSE; // = WritePrivateProfileString(m_strGroup, NULL,
 398 //                                       NULL, m_strLocalFilename) != 0;
 399
 400   if ( !bOk )
 401     wxLogLastError("WritePrivateProfileString");
 402
 403   return bOk;
 404 }
 405
 406 bool wxIniConfig::DeleteGroup(const wxString& szKey)
 407 {
 408   wxConfigPathChanger path(this, szKey);
 409
 410   // passing NULL as section name to WritePrivateProfileString deletes the
 411   // whole section according to the docs
 412   bool bOk = FALSE; // = WritePrivateProfileString(path.Name(), NULL,
 413   //                                     NULL, m_strLocalFilename) != 0;
 414
 415   if ( !bOk )
 416     wxLogLastError("WritePrivateProfileString");
 417
 418   return bOk;
 419 }
 420
 421 #ifndef MAX_PATH
 422 #define MAX_PATH 256
 423 #endif
 424
 425 bool wxIniConfig::DeleteAll()
 426 {
 427   // first delete our group in win.ini
 428 //  WriteProfileString(GetVendorName(), NULL, NULL);
 429
 430   // then delete our own ini file
 431   char szBuf[MAX_PATH];
 432   size_t nRc = 0; // = GetWindowsDirectory(szBuf, WXSIZEOF(szBuf));
 433   if ( nRc == 0 )
 434   {
 435     wxLogLastError("GetWindowsDirectory");
 436   }
 437   else if ( nRc > WXSIZEOF(szBuf) )
 438   {
 439     wxFAIL_MSG("buffer is too small for Windows directory.");
 440   }
 441
 442   wxString strFile = szBuf;
 443   strFile << '\\' << m_strLocalFilename;
 444
 445   if ( !wxRemoveFile(strFile) ) {
 446     wxLogSysError(_("Can't delete the INI file '%s'"), strFile.c_str());
 447     return FALSE;
 448   }
 449
 450   return TRUE;
 451 }
 452
 453 bool wxIniConfig::RenameEntry(const wxString& oldName, const wxString& newName)
 454 {
 455     // Not implemented
 456     return FALSE;
 457 }
 458
 459 bool wxIniConfig::RenameGroup(const wxString& oldName, const wxString& newName)
 460 {
 461     // Not implemented
 462     return FALSE;
 463 }