| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/msw/regconf.cpp |
| 3 | // Purpose: |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 27.04.98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> |
| 9 | // Licence: wxWindows licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // For compilers that support precompilation, includes "wx.h". |
| 13 | #include "wx/wxprec.h" |
| 14 | |
| 15 | #ifdef __BORLANDC__ |
| 16 | #pragma hdrstop |
| 17 | #endif |
| 18 | |
| 19 | #if wxUSE_CONFIG |
| 20 | |
| 21 | #include "wx/config.h" |
| 22 | |
| 23 | #ifndef WX_PRECOMP |
| 24 | #include "wx/string.h" |
| 25 | #include "wx/intl.h" |
| 26 | #include "wx/log.h" |
| 27 | #include "wx/event.h" |
| 28 | #include "wx/app.h" |
| 29 | #endif //WX_PRECOMP |
| 30 | |
| 31 | #include "wx/msw/registry.h" |
| 32 | #include "wx/msw/regconf.h" |
| 33 | |
| 34 | // ---------------------------------------------------------------------------- |
| 35 | // constants |
| 36 | // ---------------------------------------------------------------------------- |
| 37 | |
| 38 | // we put our data in HKLM\SOFTWARE_KEY\appname |
| 39 | #define SOFTWARE_KEY wxString(wxT("Software\\")) |
| 40 | |
| 41 | // ---------------------------------------------------------------------------- |
| 42 | // global functions |
| 43 | // ---------------------------------------------------------------------------- |
| 44 | |
| 45 | // get the value if the key is opened and it exists |
| 46 | bool TryGetValue(const wxRegKey& key, const wxString& str, wxString& strVal) |
| 47 | { |
| 48 | return key.IsOpened() && key.HasValue(str) && key.QueryValue(str, strVal); |
| 49 | } |
| 50 | |
| 51 | bool TryGetValue(const wxRegKey& key, const wxString& str, long *plVal) |
| 52 | { |
| 53 | return key.IsOpened() && key.HasValue(str) && key.QueryValue(str, plVal); |
| 54 | } |
| 55 | |
| 56 | // ============================================================================ |
| 57 | // implementation |
| 58 | // ============================================================================ |
| 59 | |
| 60 | // ---------------------------------------------------------------------------- |
| 61 | // ctor/dtor |
| 62 | // ---------------------------------------------------------------------------- |
| 63 | |
| 64 | // create the config object which stores its data under HKCU\vendor\app and, if |
| 65 | // style & wxCONFIG_USE_GLOBAL_FILE, under HKLM\vendor\app |
| 66 | wxRegConfig::wxRegConfig(const wxString& appName, const wxString& vendorName, |
| 67 | const wxString& strLocal, const wxString& strGlobal, |
| 68 | long style) |
| 69 | : wxConfigBase(appName, vendorName, strLocal, strGlobal, style) |
| 70 | { |
| 71 | wxString strRoot; |
| 72 | |
| 73 | bool bDoUseGlobal = (style & wxCONFIG_USE_GLOBAL_FILE) != 0; |
| 74 | |
| 75 | // the convention is to put the programs keys under <vendor>\<appname> |
| 76 | // (but it can be overriden by specifying the pathes explicitly in strLocal |
| 77 | // and/or strGlobal) |
| 78 | if ( strLocal.empty() || (strGlobal.empty() && bDoUseGlobal) ) |
| 79 | { |
| 80 | if ( vendorName.empty() ) |
| 81 | { |
| 82 | if ( wxTheApp ) |
| 83 | strRoot = wxTheApp->GetVendorName(); |
| 84 | } |
| 85 | else |
| 86 | { |
| 87 | strRoot = vendorName; |
| 88 | } |
| 89 | |
| 90 | // no '\\' needed if no vendor name |
| 91 | if ( !strRoot.empty() ) |
| 92 | { |
| 93 | strRoot += '\\'; |
| 94 | } |
| 95 | |
| 96 | if ( appName.empty() ) |
| 97 | { |
| 98 | wxCHECK_RET( wxTheApp, wxT("No application name in wxRegConfig ctor!") ); |
| 99 | strRoot << wxTheApp->GetAppName(); |
| 100 | } |
| 101 | else |
| 102 | { |
| 103 | strRoot << appName; |
| 104 | } |
| 105 | } |
| 106 | //else: we don't need to do all the complicated stuff above |
| 107 | |
| 108 | wxString str = strLocal.empty() ? strRoot : strLocal; |
| 109 | |
| 110 | // as we're going to change the name of these keys fairly often and as |
| 111 | // there are only few of wxRegConfig objects (usually 1), we can allow |
| 112 | // ourselves to be generous and spend some memory to significantly improve |
| 113 | // performance of SetPath() |
| 114 | static const size_t MEMORY_PREALLOC = 512; |
| 115 | |
| 116 | m_keyLocalRoot.ReserveMemoryForName(MEMORY_PREALLOC); |
| 117 | m_keyLocal.ReserveMemoryForName(MEMORY_PREALLOC); |
| 118 | |
| 119 | m_keyLocalRoot.SetName(wxRegKey::HKCU, SOFTWARE_KEY + str); |
| 120 | m_keyLocal.SetName(m_keyLocalRoot, wxEmptyString); |
| 121 | |
| 122 | if ( bDoUseGlobal ) |
| 123 | { |
| 124 | str = strGlobal.empty() ? strRoot : strGlobal; |
| 125 | |
| 126 | m_keyGlobalRoot.ReserveMemoryForName(MEMORY_PREALLOC); |
| 127 | m_keyGlobal.ReserveMemoryForName(MEMORY_PREALLOC); |
| 128 | |
| 129 | m_keyGlobalRoot.SetName(wxRegKey::HKLM, SOFTWARE_KEY + str); |
| 130 | m_keyGlobal.SetName(m_keyGlobalRoot, wxEmptyString); |
| 131 | } |
| 132 | |
| 133 | // Create() will Open() if key already exists |
| 134 | m_keyLocalRoot.Create(); |
| 135 | |
| 136 | // as it's the same key, Open() shouldn't fail (i.e. no need for Create()) |
| 137 | m_keyLocal.Open(); |
| 138 | |
| 139 | // OTOH, this key may perfectly not exist, so suppress error messages the call |
| 140 | // to Open() might generate |
| 141 | if ( bDoUseGlobal ) |
| 142 | { |
| 143 | wxLogNull nolog; |
| 144 | m_keyGlobalRoot.Open(wxRegKey::Read); |
| 145 | m_keyGlobal.Open(wxRegKey::Read); |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | // ---------------------------------------------------------------------------- |
| 150 | // path management |
| 151 | // ---------------------------------------------------------------------------- |
| 152 | |
| 153 | // this function is called a *lot* of times (as I learned after seeing from |
| 154 | // profiler output that it is called ~12000 times from Mahogany start up code!) |
| 155 | // so it is important to optimize it - in particular, avoid using generic |
| 156 | // string functions here and do everything manually because it is faster |
| 157 | // |
| 158 | // I still kept the old version to be able to check that the optimized code has |
| 159 | // the same output as the non optimized version. |
| 160 | void wxRegConfig::SetPath(const wxString& strPath) |
| 161 | { |
| 162 | // remember the old path |
| 163 | wxString strOldPath = m_strPath; |
| 164 | |
| 165 | #ifdef WX_DEBUG_SET_PATH // non optimized version kept here for testing |
| 166 | wxString m_strPathAlt; |
| 167 | |
| 168 | { |
| 169 | wxArrayString aParts; |
| 170 | |
| 171 | // because GetPath() returns "" when we're at root, we must understand |
| 172 | // empty string as "/" |
| 173 | if ( strPath.empty() || (strPath[0] == wxCONFIG_PATH_SEPARATOR) ) { |
| 174 | // absolute path |
| 175 | wxSplitPath(aParts, strPath); |
| 176 | } |
| 177 | else { |
| 178 | // relative path, combine with current one |
| 179 | wxString strFullPath = GetPath(); |
| 180 | strFullPath << wxCONFIG_PATH_SEPARATOR << strPath; |
| 181 | wxSplitPath(aParts, strFullPath); |
| 182 | } |
| 183 | |
| 184 | // recombine path parts in one variable |
| 185 | wxString strRegPath; |
| 186 | m_strPathAlt.Empty(); |
| 187 | for ( size_t n = 0; n < aParts.Count(); n++ ) { |
| 188 | strRegPath << '\\' << aParts[n]; |
| 189 | m_strPathAlt << wxCONFIG_PATH_SEPARATOR << aParts[n]; |
| 190 | } |
| 191 | } |
| 192 | #endif // 0 |
| 193 | |
| 194 | // check for the most common case first |
| 195 | if ( strPath.empty() ) |
| 196 | { |
| 197 | m_strPath = wxCONFIG_PATH_SEPARATOR; |
| 198 | } |
| 199 | else // not root |
| 200 | { |
| 201 | // construct the full path |
| 202 | wxString strFullPath; |
| 203 | if ( strPath[0u] == wxCONFIG_PATH_SEPARATOR ) |
| 204 | { |
| 205 | // absolute path |
| 206 | strFullPath = strPath; |
| 207 | } |
| 208 | else // relative path |
| 209 | { |
| 210 | strFullPath.reserve(2*m_strPath.length()); |
| 211 | |
| 212 | strFullPath << m_strPath; |
| 213 | if ( strFullPath.Len() == 0 || |
| 214 | strFullPath.Last() != wxCONFIG_PATH_SEPARATOR ) |
| 215 | strFullPath << wxCONFIG_PATH_SEPARATOR; |
| 216 | strFullPath << strPath; |
| 217 | } |
| 218 | |
| 219 | // simplify it: we need to handle ".." here |
| 220 | |
| 221 | // count the total number of slashes we have to know if we can go upper |
| 222 | size_t totalSlashes = 0; |
| 223 | |
| 224 | // position of the last slash to be able to backtrack to it quickly if |
| 225 | // needed, but we set it to -1 if we don't have a valid position |
| 226 | // |
| 227 | // we only remember the last position which means that we handle ".." |
| 228 | // quite efficiently but not "../.." - however the latter should be |
| 229 | // much more rare, so it is probably ok |
| 230 | int posLastSlash = -1; |
| 231 | |
| 232 | const wxChar *src = strFullPath.c_str(); |
| 233 | size_t len = strFullPath.length(); |
| 234 | const wxChar *end = src + len; |
| 235 | |
| 236 | wxStringBufferLength buf(m_strPath, len); |
| 237 | wxChar *dst = buf; |
| 238 | wxChar *start = dst; |
| 239 | |
| 240 | for ( ; src < end; src++, dst++ ) |
| 241 | { |
| 242 | if ( *src == wxCONFIG_PATH_SEPARATOR ) |
| 243 | { |
| 244 | // check for "/.." |
| 245 | |
| 246 | // note that we don't have to check for src < end here as |
| 247 | // *end == 0 so can't be '.' |
| 248 | if ( src[1] == _T('.') && src[2] == _T('.') && |
| 249 | (src + 3 == end || src[3] == wxCONFIG_PATH_SEPARATOR) ) |
| 250 | { |
| 251 | if ( !totalSlashes ) |
| 252 | { |
| 253 | wxLogWarning(_("'%s' has extra '..', ignored."), |
| 254 | strFullPath.c_str()); |
| 255 | } |
| 256 | else // return to the previous path component |
| 257 | { |
| 258 | // do we already have its position? |
| 259 | if ( posLastSlash == -1 ) |
| 260 | { |
| 261 | // no, find it: note that we are sure to have one |
| 262 | // because totalSlashes > 0 so we don't have to |
| 263 | // check the boundary condition below |
| 264 | |
| 265 | // this is more efficient than strrchr() |
| 266 | dst--; |
| 267 | while ( *dst != wxCONFIG_PATH_SEPARATOR ) |
| 268 | { |
| 269 | dst--; |
| 270 | } |
| 271 | } |
| 272 | else // the position of last slash was stored |
| 273 | { |
| 274 | // go directly there |
| 275 | dst = start + posLastSlash; |
| 276 | |
| 277 | // invalidate posLastSlash |
| 278 | posLastSlash = -1; |
| 279 | } |
| 280 | |
| 281 | // we must have found a slash one way or another! |
| 282 | wxASSERT_MSG( *dst == wxCONFIG_PATH_SEPARATOR, |
| 283 | _T("error in wxRegConfig::SetPath") ); |
| 284 | |
| 285 | // stay at the same position |
| 286 | dst--; |
| 287 | |
| 288 | // we killed one |
| 289 | totalSlashes--; |
| 290 | } |
| 291 | |
| 292 | // skip both dots |
| 293 | src += 2; |
| 294 | } |
| 295 | else // not "/.." |
| 296 | { |
| 297 | if ( (dst == start) || (dst[-1] != wxCONFIG_PATH_SEPARATOR) ) |
| 298 | { |
| 299 | *dst = wxCONFIG_PATH_SEPARATOR; |
| 300 | |
| 301 | posLastSlash = dst - start; |
| 302 | |
| 303 | totalSlashes++; |
| 304 | } |
| 305 | else // previous char was a slash too |
| 306 | { |
| 307 | // squeeze several subsequent slashes into one: i.e. |
| 308 | // just ignore this one |
| 309 | dst--; |
| 310 | } |
| 311 | } |
| 312 | } |
| 313 | else // normal character |
| 314 | { |
| 315 | // just copy |
| 316 | *dst = *src; |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | // NUL terminate the string |
| 321 | if ( dst[-1] == wxCONFIG_PATH_SEPARATOR && (dst != start + 1) ) |
| 322 | { |
| 323 | // if it has a trailing slash we remove it unless it is the only |
| 324 | // string character |
| 325 | dst--; |
| 326 | } |
| 327 | |
| 328 | *dst = _T('\0'); |
| 329 | buf.SetLength(dst - start); |
| 330 | } |
| 331 | |
| 332 | #ifdef WX_DEBUG_SET_PATH |
| 333 | wxASSERT( m_strPath == m_strPathAlt ); |
| 334 | #endif |
| 335 | |
| 336 | if ( m_strPath == strOldPath ) |
| 337 | return; |
| 338 | |
| 339 | // registry APIs want backslashes instead of slashes |
| 340 | wxString strRegPath; |
| 341 | if ( !m_strPath.empty() ) |
| 342 | { |
| 343 | size_t len = m_strPath.length(); |
| 344 | |
| 345 | const wxChar *src = m_strPath.c_str(); |
| 346 | wxStringBufferLength buf(strRegPath, len); |
| 347 | wxChar *dst = buf; |
| 348 | |
| 349 | const wxChar *end = src + len; |
| 350 | for ( ; src < end; src++, dst++ ) |
| 351 | { |
| 352 | if ( *src == wxCONFIG_PATH_SEPARATOR ) |
| 353 | *dst = _T('\\'); |
| 354 | else |
| 355 | *dst = *src; |
| 356 | } |
| 357 | |
| 358 | buf.SetLength(len); |
| 359 | } |
| 360 | |
| 361 | // this is not needed any longer as we don't create keys unnecessarily any |
| 362 | // more (now it is done on demand, i.e. only when they're going to contain |
| 363 | // something) |
| 364 | #if 0 |
| 365 | // as we create the registry key when SetPath(key) is done, we can be left |
| 366 | // with plenty of empty keys if this was only done to try to read some |
| 367 | // value which, in fact, doesn't exist - to prevent this from happening we |
| 368 | // automatically delete the old key if it was empty |
| 369 | if ( m_keyLocal.Exists() && LocalKey().IsEmpty() ) |
| 370 | { |
| 371 | m_keyLocal.DeleteSelf(); |
| 372 | } |
| 373 | #endif // 0 |
| 374 | |
| 375 | // change current key(s) |
| 376 | m_keyLocal.SetName(m_keyLocalRoot, strRegPath); |
| 377 | |
| 378 | if ( GetStyle() & wxCONFIG_USE_GLOBAL_FILE ) |
| 379 | { |
| 380 | m_keyGlobal.SetName(m_keyGlobalRoot, strRegPath); |
| 381 | |
| 382 | wxLogNull nolog; |
| 383 | m_keyGlobal.Open(wxRegKey::Read); |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | // ---------------------------------------------------------------------------- |
| 388 | // enumeration (works only with current group) |
| 389 | // ---------------------------------------------------------------------------- |
| 390 | |
| 391 | /* |
| 392 | We want to enumerate all local keys/values after the global ones, but, of |
| 393 | course, we don't want to repeat a key which appears locally as well as |
| 394 | globally twice. |
| 395 | |
| 396 | We use the 15th bit of lIndex for distinction between global and local. |
| 397 | */ |
| 398 | |
| 399 | #define LOCAL_MASK 0x8000 |
| 400 | #define IS_LOCAL_INDEX(l) (((l) & LOCAL_MASK) != 0) |
| 401 | |
| 402 | bool wxRegConfig::GetFirstGroup(wxString& str, long& lIndex) const |
| 403 | { |
| 404 | lIndex = 0; |
| 405 | return GetNextGroup(str, lIndex); |
| 406 | } |
| 407 | |
| 408 | bool wxRegConfig::GetNextGroup(wxString& str, long& lIndex) const |
| 409 | { |
| 410 | // are we already enumerating local entries? |
| 411 | if ( m_keyGlobal.IsOpened() && !IS_LOCAL_INDEX(lIndex) ) { |
| 412 | // try to find a global entry which doesn't appear locally |
| 413 | while ( m_keyGlobal.GetNextKey(str, lIndex) ) { |
| 414 | if ( !m_keyLocal.Exists() || !LocalKey().HasSubKey(str) ) { |
| 415 | // ok, found one - return it |
| 416 | return true; |
| 417 | } |
| 418 | } |
| 419 | |
| 420 | // no more global entries |
| 421 | lIndex |= LOCAL_MASK; |
| 422 | } |
| 423 | |
| 424 | // if we don't have the key at all, don't try to enumerate anything under it |
| 425 | if ( !m_keyLocal.Exists() ) |
| 426 | return false; |
| 427 | |
| 428 | // much easier with local entries: get the next one we find |
| 429 | // (don't forget to clear our flag bit and set it again later) |
| 430 | lIndex &= ~LOCAL_MASK; |
| 431 | bool bOk = LocalKey().GetNextKey(str, lIndex); |
| 432 | lIndex |= LOCAL_MASK; |
| 433 | |
| 434 | return bOk; |
| 435 | } |
| 436 | |
| 437 | bool wxRegConfig::GetFirstEntry(wxString& str, long& lIndex) const |
| 438 | { |
| 439 | lIndex = 0; |
| 440 | return GetNextEntry(str, lIndex); |
| 441 | } |
| 442 | |
| 443 | bool wxRegConfig::GetNextEntry(wxString& str, long& lIndex) const |
| 444 | { |
| 445 | // are we already enumerating local entries? |
| 446 | if ( m_keyGlobal.IsOpened() && !IS_LOCAL_INDEX(lIndex) ) { |
| 447 | // try to find a global entry which doesn't appear locally |
| 448 | while ( m_keyGlobal.GetNextValue(str, lIndex) ) { |
| 449 | if ( !m_keyLocal.Exists() || !LocalKey().HasValue(str) ) { |
| 450 | // ok, found one - return it |
| 451 | return true; |
| 452 | } |
| 453 | } |
| 454 | |
| 455 | // no more global entries |
| 456 | lIndex |= LOCAL_MASK; |
| 457 | } |
| 458 | |
| 459 | // if we don't have the key at all, don't try to enumerate anything under it |
| 460 | if ( !m_keyLocal.Exists() ) |
| 461 | return false; |
| 462 | |
| 463 | // much easier with local entries: get the next one we find |
| 464 | // (don't forget to clear our flag bit and set it again later) |
| 465 | lIndex &= ~LOCAL_MASK; |
| 466 | bool bOk = LocalKey().GetNextValue(str, lIndex); |
| 467 | lIndex |= LOCAL_MASK; |
| 468 | |
| 469 | return bOk; |
| 470 | } |
| 471 | |
| 472 | size_t wxRegConfig::GetNumberOfEntries(bool WXUNUSED(bRecursive)) const |
| 473 | { |
| 474 | size_t nEntries = 0; |
| 475 | |
| 476 | // dummy vars |
| 477 | wxString str; |
| 478 | long l; |
| 479 | bool bCont = ((wxRegConfig*)this)->GetFirstEntry(str, l); |
| 480 | while ( bCont ) { |
| 481 | nEntries++; |
| 482 | |
| 483 | bCont = ((wxRegConfig*)this)->GetNextEntry(str, l); |
| 484 | } |
| 485 | |
| 486 | return nEntries; |
| 487 | } |
| 488 | |
| 489 | size_t wxRegConfig::GetNumberOfGroups(bool WXUNUSED(bRecursive)) const |
| 490 | { |
| 491 | size_t nGroups = 0; |
| 492 | |
| 493 | // dummy vars |
| 494 | wxString str; |
| 495 | long l; |
| 496 | bool bCont = ((wxRegConfig*)this)->GetFirstGroup(str, l); |
| 497 | while ( bCont ) { |
| 498 | nGroups++; |
| 499 | |
| 500 | bCont = ((wxRegConfig*)this)->GetNextGroup(str, l); |
| 501 | } |
| 502 | |
| 503 | return nGroups; |
| 504 | } |
| 505 | |
| 506 | // ---------------------------------------------------------------------------- |
| 507 | // tests for existence |
| 508 | // ---------------------------------------------------------------------------- |
| 509 | |
| 510 | bool wxRegConfig::HasGroup(const wxString& key) const |
| 511 | { |
| 512 | wxConfigPathChanger path(this, key); |
| 513 | |
| 514 | wxString strName(path.Name()); |
| 515 | |
| 516 | return (m_keyLocal.Exists() && LocalKey().HasSubKey(strName)) || |
| 517 | m_keyGlobal.HasSubKey(strName); |
| 518 | } |
| 519 | |
| 520 | bool wxRegConfig::HasEntry(const wxString& key) const |
| 521 | { |
| 522 | wxConfigPathChanger path(this, key); |
| 523 | |
| 524 | wxString strName(path.Name()); |
| 525 | |
| 526 | return (m_keyLocal.Exists() && LocalKey().HasValue(strName)) || |
| 527 | m_keyGlobal.HasValue(strName); |
| 528 | } |
| 529 | |
| 530 | wxConfigBase::EntryType wxRegConfig::GetEntryType(const wxString& key) const |
| 531 | { |
| 532 | wxConfigPathChanger path(this, key); |
| 533 | |
| 534 | wxString strName(path.Name()); |
| 535 | |
| 536 | bool isNumeric; |
| 537 | if ( m_keyLocal.Exists() && LocalKey().HasValue(strName) ) |
| 538 | isNumeric = m_keyLocal.IsNumericValue(strName); |
| 539 | else if ( m_keyGlobal.HasValue(strName) ) |
| 540 | isNumeric = m_keyGlobal.IsNumericValue(strName); |
| 541 | else |
| 542 | return wxConfigBase::Type_Unknown; |
| 543 | |
| 544 | return isNumeric ? wxConfigBase::Type_Integer : wxConfigBase::Type_String; |
| 545 | } |
| 546 | |
| 547 | // ---------------------------------------------------------------------------- |
| 548 | // reading/writing |
| 549 | // ---------------------------------------------------------------------------- |
| 550 | |
| 551 | bool wxRegConfig::DoReadString(const wxString& key, wxString *pStr) const |
| 552 | { |
| 553 | wxCHECK_MSG( pStr, false, _T("wxRegConfig::Read(): NULL param") ); |
| 554 | |
| 555 | wxConfigPathChanger path(this, key); |
| 556 | |
| 557 | bool bQueryGlobal = true; |
| 558 | |
| 559 | // if immutable key exists in global key we must check that it's not |
| 560 | // overriden by the local key with the same name |
| 561 | if ( IsImmutable(path.Name()) ) { |
| 562 | if ( TryGetValue(m_keyGlobal, path.Name(), *pStr) ) { |
| 563 | if ( m_keyLocal.Exists() && LocalKey().HasValue(path.Name()) ) { |
| 564 | wxLogWarning(wxT("User value for immutable key '%s' ignored."), |
| 565 | path.Name().c_str()); |
| 566 | } |
| 567 | |
| 568 | return true; |
| 569 | } |
| 570 | else { |
| 571 | // don't waste time - it's not there anyhow |
| 572 | bQueryGlobal = false; |
| 573 | } |
| 574 | } |
| 575 | |
| 576 | // first try local key |
| 577 | if ( (m_keyLocal.Exists() && TryGetValue(LocalKey(), path.Name(), *pStr)) || |
| 578 | (bQueryGlobal && TryGetValue(m_keyGlobal, path.Name(), *pStr)) ) { |
| 579 | return true; |
| 580 | } |
| 581 | |
| 582 | return false; |
| 583 | } |
| 584 | |
| 585 | // this exactly reproduces the string version above except for ExpandEnvVars(), |
| 586 | // we really should avoid this code duplication somehow... |
| 587 | |
| 588 | bool wxRegConfig::DoReadLong(const wxString& key, long *plResult) const |
| 589 | { |
| 590 | wxCHECK_MSG( plResult, false, _T("wxRegConfig::Read(): NULL param") ); |
| 591 | |
| 592 | wxConfigPathChanger path(this, key); |
| 593 | |
| 594 | bool bQueryGlobal = true; |
| 595 | |
| 596 | // if immutable key exists in global key we must check that it's not |
| 597 | // overriden by the local key with the same name |
| 598 | if ( IsImmutable(path.Name()) ) { |
| 599 | if ( TryGetValue(m_keyGlobal, path.Name(), plResult) ) { |
| 600 | if ( m_keyLocal.Exists() && LocalKey().HasValue(path.Name()) ) { |
| 601 | wxLogWarning(wxT("User value for immutable key '%s' ignored."), |
| 602 | path.Name().c_str()); |
| 603 | } |
| 604 | |
| 605 | return true; |
| 606 | } |
| 607 | else { |
| 608 | // don't waste time - it's not there anyhow |
| 609 | bQueryGlobal = false; |
| 610 | } |
| 611 | } |
| 612 | |
| 613 | // first try local key |
| 614 | if ( (m_keyLocal.Exists() && TryGetValue(LocalKey(), path.Name(), plResult)) || |
| 615 | (bQueryGlobal && TryGetValue(m_keyGlobal, path.Name(), plResult)) ) { |
| 616 | return true; |
| 617 | } |
| 618 | |
| 619 | return false; |
| 620 | } |
| 621 | |
| 622 | bool wxRegConfig::DoWriteString(const wxString& key, const wxString& szValue) |
| 623 | { |
| 624 | wxConfigPathChanger path(this, key); |
| 625 | |
| 626 | if ( IsImmutable(path.Name()) ) { |
| 627 | wxLogError(wxT("Can't change immutable entry '%s'."), path.Name().c_str()); |
| 628 | return false; |
| 629 | } |
| 630 | |
| 631 | return LocalKey().SetValue(path.Name(), szValue); |
| 632 | } |
| 633 | |
| 634 | bool wxRegConfig::DoWriteLong(const wxString& key, long lValue) |
| 635 | { |
| 636 | wxConfigPathChanger path(this, key); |
| 637 | |
| 638 | if ( IsImmutable(path.Name()) ) { |
| 639 | wxLogError(wxT("Can't change immutable entry '%s'."), path.Name().c_str()); |
| 640 | return false; |
| 641 | } |
| 642 | |
| 643 | return LocalKey().SetValue(path.Name(), lValue); |
| 644 | } |
| 645 | |
| 646 | // ---------------------------------------------------------------------------- |
| 647 | // renaming |
| 648 | // ---------------------------------------------------------------------------- |
| 649 | |
| 650 | bool wxRegConfig::RenameEntry(const wxString& oldName, const wxString& newName) |
| 651 | { |
| 652 | // check that the old entry exists... |
| 653 | if ( !HasEntry(oldName) ) |
| 654 | return false; |
| 655 | |
| 656 | // and that the new one doesn't |
| 657 | if ( HasEntry(newName) ) |
| 658 | return false; |
| 659 | |
| 660 | return m_keyLocal.RenameValue(oldName, newName); |
| 661 | } |
| 662 | |
| 663 | bool wxRegConfig::RenameGroup(const wxString& oldName, const wxString& newName) |
| 664 | { |
| 665 | // check that the old group exists... |
| 666 | if ( !HasGroup(oldName) ) |
| 667 | return false; |
| 668 | |
| 669 | // and that the new one doesn't |
| 670 | if ( HasGroup(newName) ) |
| 671 | return false; |
| 672 | |
| 673 | return wxRegKey(m_keyLocal, oldName).Rename(newName); |
| 674 | } |
| 675 | |
| 676 | // ---------------------------------------------------------------------------- |
| 677 | // deleting |
| 678 | // ---------------------------------------------------------------------------- |
| 679 | |
| 680 | bool wxRegConfig::DeleteEntry(const wxString& value, bool bGroupIfEmptyAlso) |
| 681 | { |
| 682 | wxConfigPathChanger path(this, value); |
| 683 | |
| 684 | if ( m_keyLocal.Exists() ) { |
| 685 | if ( !m_keyLocal.DeleteValue(path.Name()) ) |
| 686 | return false; |
| 687 | |
| 688 | if ( bGroupIfEmptyAlso && m_keyLocal.IsEmpty() ) { |
| 689 | wxString strKey = GetPath().AfterLast(wxCONFIG_PATH_SEPARATOR); |
| 690 | SetPath(_T("..")); // changes m_keyLocal |
| 691 | return LocalKey().DeleteKey(strKey); |
| 692 | } |
| 693 | } |
| 694 | |
| 695 | return true; |
| 696 | } |
| 697 | |
| 698 | bool wxRegConfig::DeleteGroup(const wxString& key) |
| 699 | { |
| 700 | wxConfigPathChanger path(this, key); |
| 701 | |
| 702 | if ( !m_keyLocal.Exists() ) |
| 703 | { |
| 704 | // nothing to do |
| 705 | return true; |
| 706 | } |
| 707 | |
| 708 | if ( !LocalKey().DeleteKey(path.Name()) ) |
| 709 | return false; |
| 710 | |
| 711 | path.UpdateIfDeleted(); |
| 712 | |
| 713 | return true; |
| 714 | } |
| 715 | |
| 716 | bool wxRegConfig::DeleteAll() |
| 717 | { |
| 718 | m_keyLocal.Close(); |
| 719 | m_keyGlobal.Close(); |
| 720 | |
| 721 | bool bOk = m_keyLocalRoot.DeleteSelf(); |
| 722 | |
| 723 | // make sure that we opened m_keyGlobalRoot and so it has a reasonable name: |
| 724 | // otherwise we will delete HKEY_CLASSES_ROOT recursively |
| 725 | if ( bOk && m_keyGlobalRoot.IsOpened() ) |
| 726 | bOk = m_keyGlobalRoot.DeleteSelf(); |
| 727 | |
| 728 | return bOk; |
| 729 | } |
| 730 | |
| 731 | #endif // wxUSE_CONFIG |