| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/msw/volume.cpp |
| 3 | // Purpose: wxFSVolume - encapsulates system volume information |
| 4 | // Author: George Policello |
| 5 | // Modified by: |
| 6 | // Created: 28 Jan 02 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2002 George Policello |
| 9 | // Licence: wxWindows licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | #include "wx/wxprec.h" |
| 21 | |
| 22 | #ifdef __BORLANDC__ |
| 23 | #pragma hdrstop |
| 24 | #endif |
| 25 | |
| 26 | #if wxUSE_FSVOLUME |
| 27 | |
| 28 | #include "wx/volume.h" |
| 29 | |
| 30 | #ifndef WX_PRECOMP |
| 31 | #if wxUSE_GUI |
| 32 | #include "wx/icon.h" |
| 33 | #endif |
| 34 | #include "wx/intl.h" |
| 35 | #include "wx/hashmap.h" |
| 36 | #include "wx/filefn.h" |
| 37 | #endif // WX_PRECOMP |
| 38 | |
| 39 | #include "wx/dir.h" |
| 40 | #include "wx/dynlib.h" |
| 41 | #include "wx/arrimpl.cpp" |
| 42 | |
| 43 | #include <shellapi.h> |
| 44 | #include <shlobj.h> |
| 45 | #include "wx/msw/missing.h" |
| 46 | |
| 47 | #if wxUSE_BASE |
| 48 | |
| 49 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 50 | // Dynamic library function defs. |
| 51 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 52 | |
| 53 | #if wxUSE_DYNLIB_CLASS |
| 54 | static wxDynamicLibrary s_mprLib; |
| 55 | #endif |
| 56 | |
| 57 | typedef DWORD (WINAPI* WNetOpenEnumPtr)(DWORD, DWORD, DWORD, LPNETRESOURCE, LPHANDLE); |
| 58 | typedef DWORD (WINAPI* WNetEnumResourcePtr)(HANDLE, LPDWORD, LPVOID, LPDWORD); |
| 59 | typedef DWORD (WINAPI* WNetCloseEnumPtr)(HANDLE); |
| 60 | |
| 61 | static WNetOpenEnumPtr s_pWNetOpenEnum; |
| 62 | static WNetEnumResourcePtr s_pWNetEnumResource; |
| 63 | static WNetCloseEnumPtr s_pWNetCloseEnum; |
| 64 | |
| 65 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 66 | // Globals/Statics |
| 67 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 68 | static long s_cancelSearch = FALSE; |
| 69 | |
| 70 | struct FileInfo |
| 71 | { |
| 72 | FileInfo(unsigned flag=0, wxFSVolumeKind type=wxFS_VOL_OTHER) : |
| 73 | m_flags(flag), m_type(type) {} |
| 74 | |
| 75 | FileInfo(const FileInfo& other) { *this = other; } |
| 76 | FileInfo& operator=(const FileInfo& other) |
| 77 | { |
| 78 | m_flags = other.m_flags; |
| 79 | m_type = other.m_type; |
| 80 | return *this; |
| 81 | } |
| 82 | |
| 83 | unsigned m_flags; |
| 84 | wxFSVolumeKind m_type; |
| 85 | }; |
| 86 | WX_DECLARE_STRING_HASH_MAP(FileInfo, FileInfoMap); |
| 87 | // Cygwin bug (?) destructor for global s_fileInfo is called twice... |
| 88 | static FileInfoMap& GetFileInfoMap() |
| 89 | { |
| 90 | static FileInfoMap s_fileInfo(25); |
| 91 | |
| 92 | return s_fileInfo; |
| 93 | } |
| 94 | #define s_fileInfo (GetFileInfoMap()) |
| 95 | |
| 96 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 97 | // Local helper functions. |
| 98 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 99 | |
| 100 | //============================================================================= |
| 101 | // Function: GetBasicFlags |
| 102 | // Purpose: Set basic flags, primarily wxFS_VOL_REMOTE and wxFS_VOL_REMOVABLE. |
| 103 | // Notes: - Local and mapped drives are mounted by definition. We have no |
| 104 | // way to determine mounted status of network drives, so assume that |
| 105 | // all drives are mounted, and let the caller decide otherwise. |
| 106 | // - Other flags are 'best guess' from type of drive. The system will |
| 107 | // not report the file attributes with any degree of accuracy. |
| 108 | //============================================================================= |
| 109 | static unsigned GetBasicFlags(const wxChar* filename) |
| 110 | { |
| 111 | unsigned flags = wxFS_VOL_MOUNTED; |
| 112 | |
| 113 | //---------------------------------- |
| 114 | // 'Best Guess' based on drive type. |
| 115 | //---------------------------------- |
| 116 | wxFSVolumeKind type; |
| 117 | switch(GetDriveType(filename)) |
| 118 | { |
| 119 | case DRIVE_FIXED: |
| 120 | type = wxFS_VOL_DISK; |
| 121 | break; |
| 122 | |
| 123 | case DRIVE_REMOVABLE: |
| 124 | flags |= wxFS_VOL_REMOVABLE; |
| 125 | type = wxFS_VOL_FLOPPY; |
| 126 | break; |
| 127 | |
| 128 | case DRIVE_CDROM: |
| 129 | flags |= wxFS_VOL_REMOVABLE | wxFS_VOL_READONLY; |
| 130 | type = wxFS_VOL_CDROM; |
| 131 | break; |
| 132 | |
| 133 | case DRIVE_REMOTE: |
| 134 | flags |= wxFS_VOL_REMOTE; |
| 135 | type = wxFS_VOL_NETWORK; |
| 136 | break; |
| 137 | |
| 138 | case DRIVE_NO_ROOT_DIR: |
| 139 | flags &= ~wxFS_VOL_MOUNTED; |
| 140 | type = wxFS_VOL_OTHER; |
| 141 | break; |
| 142 | |
| 143 | default: |
| 144 | type = wxFS_VOL_OTHER; |
| 145 | break; |
| 146 | } |
| 147 | |
| 148 | //----------------------------------------------------------------------- |
| 149 | // The following most likely will not modify anything not set above, |
| 150 | // and will not work at all for network shares or empty CD ROM drives. |
| 151 | // But it is a good check if the Win API ever gets better about reporting |
| 152 | // this information. |
| 153 | //----------------------------------------------------------------------- |
| 154 | SHFILEINFO fi; |
| 155 | long rc = SHGetFileInfo(filename, 0, &fi, sizeof(fi), SHGFI_ATTRIBUTES); |
| 156 | if (!rc) |
| 157 | { |
| 158 | // this error is not fatal, so don't show a message to the user about |
| 159 | // it, otherwise it would appear every time a generic directory picker |
| 160 | // dialog is used and there is a connected network drive |
| 161 | wxLogLastError(_T("SHGetFileInfo")); |
| 162 | } |
| 163 | else |
| 164 | { |
| 165 | if (fi.dwAttributes & SFGAO_READONLY) |
| 166 | flags |= wxFS_VOL_READONLY; |
| 167 | if (fi.dwAttributes & SFGAO_REMOVABLE) |
| 168 | flags |= wxFS_VOL_REMOVABLE; |
| 169 | } |
| 170 | |
| 171 | //------------------ |
| 172 | // Flags are cached. |
| 173 | //------------------ |
| 174 | s_fileInfo[filename] = FileInfo(flags, type); |
| 175 | |
| 176 | return flags; |
| 177 | } // GetBasicFlags |
| 178 | |
| 179 | //============================================================================= |
| 180 | // Function: FilteredAdd |
| 181 | // Purpose: Add a file to the list if it meets the filter requirement. |
| 182 | // Notes: - See GetBasicFlags for remarks about the Mounted flag. |
| 183 | //============================================================================= |
| 184 | static bool FilteredAdd(wxArrayString& list, const wxChar* filename, |
| 185 | unsigned flagsSet, unsigned flagsUnset) |
| 186 | { |
| 187 | bool accept = true; |
| 188 | unsigned flags = GetBasicFlags(filename); |
| 189 | |
| 190 | if (flagsSet & wxFS_VOL_MOUNTED && !(flags & wxFS_VOL_MOUNTED)) |
| 191 | accept = false; |
| 192 | else if (flagsUnset & wxFS_VOL_MOUNTED && (flags & wxFS_VOL_MOUNTED)) |
| 193 | accept = false; |
| 194 | else if (flagsSet & wxFS_VOL_REMOVABLE && !(flags & wxFS_VOL_REMOVABLE)) |
| 195 | accept = false; |
| 196 | else if (flagsUnset & wxFS_VOL_REMOVABLE && (flags & wxFS_VOL_REMOVABLE)) |
| 197 | accept = false; |
| 198 | else if (flagsSet & wxFS_VOL_READONLY && !(flags & wxFS_VOL_READONLY)) |
| 199 | accept = false; |
| 200 | else if (flagsUnset & wxFS_VOL_READONLY && (flags & wxFS_VOL_READONLY)) |
| 201 | accept = false; |
| 202 | else if (flagsSet & wxFS_VOL_REMOTE && !(flags & wxFS_VOL_REMOTE)) |
| 203 | accept = false; |
| 204 | else if (flagsUnset & wxFS_VOL_REMOTE && (flags & wxFS_VOL_REMOTE)) |
| 205 | accept = false; |
| 206 | |
| 207 | // Add to the list if passed the filter. |
| 208 | if (accept) |
| 209 | list.Add(filename); |
| 210 | |
| 211 | return accept; |
| 212 | } // FilteredAdd |
| 213 | |
| 214 | //============================================================================= |
| 215 | // Function: BuildListFromNN |
| 216 | // Purpose: Append or remove items from the list |
| 217 | // Notes: - There is no way to find all disconnected NN items, or even to find |
| 218 | // all items while determining which are connected and not. So this |
| 219 | // function will find either all items or connected items. |
| 220 | //============================================================================= |
| 221 | static void BuildListFromNN(wxArrayString& list, NETRESOURCE* pResSrc, |
| 222 | unsigned flagsSet, unsigned flagsUnset) |
| 223 | { |
| 224 | HANDLE hEnum; |
| 225 | int rc; |
| 226 | |
| 227 | //----------------------------------------------- |
| 228 | // Scope may be all drives or all mounted drives. |
| 229 | //----------------------------------------------- |
| 230 | unsigned scope = RESOURCE_GLOBALNET; |
| 231 | if (flagsSet & wxFS_VOL_MOUNTED) |
| 232 | scope = RESOURCE_CONNECTED; |
| 233 | |
| 234 | //---------------------------------------------------------------------- |
| 235 | // Enumerate all items, adding only non-containers (ie. network shares). |
| 236 | // Containers cause a recursive call to this function for their own |
| 237 | // enumeration. |
| 238 | //---------------------------------------------------------------------- |
| 239 | if (rc = s_pWNetOpenEnum(scope, RESOURCETYPE_DISK, 0, pResSrc, &hEnum), rc == NO_ERROR) |
| 240 | { |
| 241 | DWORD count = 1; |
| 242 | DWORD size = 256; |
| 243 | NETRESOURCE* pRes = (NETRESOURCE*)malloc(size); |
| 244 | memset(pRes, 0, sizeof(NETRESOURCE)); |
| 245 | while (rc = s_pWNetEnumResource(hEnum, &count, pRes, &size), rc == NO_ERROR || rc == ERROR_MORE_DATA) |
| 246 | { |
| 247 | if (s_cancelSearch) |
| 248 | break; |
| 249 | |
| 250 | if (rc == ERROR_MORE_DATA) |
| 251 | { |
| 252 | pRes = (NETRESOURCE*)realloc(pRes, size); |
| 253 | count = 1; |
| 254 | } |
| 255 | else if (count == 1) |
| 256 | { |
| 257 | // Enumerate the container. |
| 258 | if (pRes->dwUsage & RESOURCEUSAGE_CONTAINER) |
| 259 | { |
| 260 | BuildListFromNN(list, pRes, flagsSet, flagsUnset); |
| 261 | } |
| 262 | |
| 263 | // Add the network share. |
| 264 | else |
| 265 | { |
| 266 | wxString filename(pRes->lpRemoteName); |
| 267 | |
| 268 | // if the drive is unavailable, FilteredAdd() can hang for |
| 269 | // a long time and, moreover, its failure appears to be not |
| 270 | // cached so this will happen every time we use it, so try |
| 271 | // a much quicker wxDirExists() test (which still hangs but |
| 272 | // for much shorter time) for locally mapped drives first |
| 273 | // to try to avoid this |
| 274 | if ( pRes->lpLocalName && |
| 275 | *pRes->lpLocalName && |
| 276 | !wxDirExists(pRes->lpLocalName) ) |
| 277 | continue; |
| 278 | |
| 279 | if (!filename.empty()) |
| 280 | { |
| 281 | if (filename.Last() != '\\') |
| 282 | filename.Append('\\'); |
| 283 | |
| 284 | // The filter function will not know mounted from unmounted, and neither do we unless |
| 285 | // we are iterating using RESOURCE_CONNECTED, in which case they all are mounted. |
| 286 | // Volumes on disconnected servers, however, will correctly show as unmounted. |
| 287 | FilteredAdd(list, filename.wx_str(), flagsSet, flagsUnset&~wxFS_VOL_MOUNTED); |
| 288 | if (scope == RESOURCE_GLOBALNET) |
| 289 | s_fileInfo[filename].m_flags &= ~wxFS_VOL_MOUNTED; |
| 290 | } |
| 291 | } |
| 292 | } |
| 293 | else if (count == 0) |
| 294 | break; |
| 295 | } |
| 296 | free(pRes); |
| 297 | s_pWNetCloseEnum(hEnum); |
| 298 | } |
| 299 | } // BuildListFromNN |
| 300 | |
| 301 | //============================================================================= |
| 302 | // Function: CompareFcn |
| 303 | // Purpose: Used to sort the NN list alphabetically, case insensitive. |
| 304 | //============================================================================= |
| 305 | static int CompareFcn(const wxString& first, const wxString& second) |
| 306 | { |
| 307 | return wxStricmp(first.c_str(), second.c_str()); |
| 308 | } // CompareFcn |
| 309 | |
| 310 | //============================================================================= |
| 311 | // Function: BuildRemoteList |
| 312 | // Purpose: Append Network Neighborhood items to the list. |
| 313 | // Notes: - Mounted gets transalated into Connected. FilteredAdd is told |
| 314 | // to ignore the Mounted flag since we need to handle it in a weird |
| 315 | // way manually. |
| 316 | // - The resulting list is sorted alphabetically. |
| 317 | //============================================================================= |
| 318 | static bool BuildRemoteList(wxArrayString& list, NETRESOURCE* pResSrc, |
| 319 | unsigned flagsSet, unsigned flagsUnset) |
| 320 | { |
| 321 | // NN query depends on dynamically loaded library. |
| 322 | if (!s_pWNetOpenEnum || !s_pWNetEnumResource || !s_pWNetCloseEnum) |
| 323 | { |
| 324 | wxLogError(_("Failed to load mpr.dll.")); |
| 325 | return false; |
| 326 | } |
| 327 | |
| 328 | // Don't waste time doing the work if the flags conflict. |
| 329 | if (flagsSet & wxFS_VOL_MOUNTED && flagsUnset & wxFS_VOL_MOUNTED) |
| 330 | return false; |
| 331 | |
| 332 | //---------------------------------------------- |
| 333 | // Generate the list according to the flags set. |
| 334 | //---------------------------------------------- |
| 335 | BuildListFromNN(list, pResSrc, flagsSet, flagsUnset); |
| 336 | list.Sort(CompareFcn); |
| 337 | |
| 338 | //------------------------------------------------------------------------- |
| 339 | // If mounted only is requested, then we only need one simple pass. |
| 340 | // Otherwise, we need to build a list of all NN volumes and then apply the |
| 341 | // list of mounted drives to it. |
| 342 | //------------------------------------------------------------------------- |
| 343 | if (!(flagsSet & wxFS_VOL_MOUNTED)) |
| 344 | { |
| 345 | // generate. |
| 346 | wxArrayString mounted; |
| 347 | BuildListFromNN(mounted, pResSrc, flagsSet | wxFS_VOL_MOUNTED, flagsUnset & ~wxFS_VOL_MOUNTED); |
| 348 | mounted.Sort(CompareFcn); |
| 349 | |
| 350 | // apply list from bottom to top to preserve indexes if removing items. |
| 351 | ssize_t iList = list.GetCount()-1; |
| 352 | for (ssize_t iMounted = mounted.GetCount()-1; iMounted >= 0 && iList >= 0; iMounted--) |
| 353 | { |
| 354 | int compare; |
| 355 | wxString all(list[iList]); |
| 356 | wxString mount(mounted[iMounted]); |
| 357 | |
| 358 | while (compare = |
| 359 | wxStricmp(list[iList].c_str(), mounted[iMounted].c_str()), |
| 360 | compare > 0 && iList >= 0) |
| 361 | { |
| 362 | iList--; |
| 363 | all = list[iList]; |
| 364 | } |
| 365 | |
| 366 | |
| 367 | if (compare == 0) |
| 368 | { |
| 369 | // Found the element. Remove it or mark it mounted. |
| 370 | if (flagsUnset & wxFS_VOL_MOUNTED) |
| 371 | list.RemoveAt(iList); |
| 372 | else |
| 373 | s_fileInfo[list[iList]].m_flags |= wxFS_VOL_MOUNTED; |
| 374 | |
| 375 | } |
| 376 | |
| 377 | iList--; |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | return true; |
| 382 | } // BuildRemoteList |
| 383 | |
| 384 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 385 | // wxFSVolume |
| 386 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 387 | |
| 388 | //============================================================================= |
| 389 | // Function: GetVolumes |
| 390 | // Purpose: Generate and return a list of all volumes (drives) available. |
| 391 | // Notes: |
| 392 | //============================================================================= |
| 393 | wxArrayString wxFSVolumeBase::GetVolumes(int flagsSet, int flagsUnset) |
| 394 | { |
| 395 | ::InterlockedExchange(&s_cancelSearch, FALSE); // reset |
| 396 | |
| 397 | #if wxUSE_DYNLIB_CLASS |
| 398 | if (!s_mprLib.IsLoaded() && s_mprLib.Load(_T("mpr.dll"))) |
| 399 | { |
| 400 | #ifdef UNICODE |
| 401 | s_pWNetOpenEnum = (WNetOpenEnumPtr)s_mprLib.GetSymbol(_T("WNetOpenEnumW")); |
| 402 | s_pWNetEnumResource = (WNetEnumResourcePtr)s_mprLib.GetSymbol(_T("WNetEnumResourceW")); |
| 403 | #else |
| 404 | s_pWNetOpenEnum = (WNetOpenEnumPtr)s_mprLib.GetSymbol(_T("WNetOpenEnumA")); |
| 405 | s_pWNetEnumResource = (WNetEnumResourcePtr)s_mprLib.GetSymbol(_T("WNetEnumResourceA")); |
| 406 | #endif |
| 407 | s_pWNetCloseEnum = (WNetCloseEnumPtr)s_mprLib.GetSymbol(_T("WNetCloseEnum")); |
| 408 | } |
| 409 | #endif |
| 410 | |
| 411 | wxArrayString list; |
| 412 | |
| 413 | //------------------------------- |
| 414 | // Local and mapped drives first. |
| 415 | //------------------------------- |
| 416 | // Allocate the required space for the API call. |
| 417 | const DWORD chars = GetLogicalDriveStrings(0, NULL); |
| 418 | TCHAR* buf = new TCHAR[chars+1]; |
| 419 | |
| 420 | // Get the list of drives. |
| 421 | GetLogicalDriveStrings(chars, buf); |
| 422 | |
| 423 | // Parse the list into an array, applying appropriate filters. |
| 424 | TCHAR *pVol; |
| 425 | pVol = buf; |
| 426 | while (*pVol) |
| 427 | { |
| 428 | FilteredAdd(list, pVol, flagsSet, flagsUnset); |
| 429 | pVol = pVol + wxStrlen(pVol) + 1; |
| 430 | } |
| 431 | |
| 432 | // Cleanup. |
| 433 | delete[] buf; |
| 434 | |
| 435 | //--------------------------- |
| 436 | // Network Neighborhood next. |
| 437 | //--------------------------- |
| 438 | |
| 439 | // not exclude remote and not removable |
| 440 | if (!(flagsUnset & wxFS_VOL_REMOTE) && |
| 441 | !(flagsSet & wxFS_VOL_REMOVABLE) |
| 442 | ) |
| 443 | { |
| 444 | // The returned list will be sorted alphabetically. We don't pass |
| 445 | // our in since we don't want to change to order of the local drives. |
| 446 | wxArrayString nn; |
| 447 | if (BuildRemoteList(nn, 0, flagsSet, flagsUnset)) |
| 448 | { |
| 449 | for (size_t idx = 0; idx < nn.GetCount(); idx++) |
| 450 | list.Add(nn[idx]); |
| 451 | } |
| 452 | } |
| 453 | |
| 454 | return list; |
| 455 | } // GetVolumes |
| 456 | |
| 457 | //============================================================================= |
| 458 | // Function: CancelSearch |
| 459 | // Purpose: Instruct an active search to stop. |
| 460 | // Notes: - This will only sensibly be called by a thread other than the one |
| 461 | // performing the search. This is the only thread-safe function |
| 462 | // provided by the class. |
| 463 | //============================================================================= |
| 464 | void wxFSVolumeBase::CancelSearch() |
| 465 | { |
| 466 | ::InterlockedExchange(&s_cancelSearch, TRUE); |
| 467 | } // CancelSearch |
| 468 | |
| 469 | //============================================================================= |
| 470 | // Function: constructor |
| 471 | // Purpose: default constructor |
| 472 | //============================================================================= |
| 473 | wxFSVolumeBase::wxFSVolumeBase() |
| 474 | { |
| 475 | m_isOk = false; |
| 476 | } // wxVolume |
| 477 | |
| 478 | //============================================================================= |
| 479 | // Function: constructor |
| 480 | // Purpose: constructor that calls Create |
| 481 | //============================================================================= |
| 482 | wxFSVolumeBase::wxFSVolumeBase(const wxString& name) |
| 483 | { |
| 484 | Create(name); |
| 485 | } // wxVolume |
| 486 | |
| 487 | //============================================================================= |
| 488 | // Function: Create |
| 489 | // Purpose: Finds, logs in, etc. to the request volume. |
| 490 | //============================================================================= |
| 491 | bool wxFSVolumeBase::Create(const wxString& name) |
| 492 | { |
| 493 | // assume fail. |
| 494 | m_isOk = false; |
| 495 | |
| 496 | // supplied. |
| 497 | m_volName = name; |
| 498 | |
| 499 | // Display name. |
| 500 | SHFILEINFO fi; |
| 501 | long rc = SHGetFileInfo(m_volName.wx_str(), 0, &fi, sizeof(fi), SHGFI_DISPLAYNAME); |
| 502 | if (!rc) |
| 503 | { |
| 504 | wxLogError(_("Cannot read typename from '%s'!"), m_volName.c_str()); |
| 505 | return m_isOk; |
| 506 | } |
| 507 | m_dispName = fi.szDisplayName; |
| 508 | |
| 509 | // all tests passed. |
| 510 | return m_isOk = true; |
| 511 | } // Create |
| 512 | |
| 513 | //============================================================================= |
| 514 | // Function: IsOk |
| 515 | // Purpose: returns true if the volume is legal. |
| 516 | // Notes: For fixed disks, it must exist. For removable disks, it must also |
| 517 | // be present. For Network Shares, it must also be logged in, etc. |
| 518 | //============================================================================= |
| 519 | bool wxFSVolumeBase::IsOk() const |
| 520 | { |
| 521 | return m_isOk; |
| 522 | } // IsOk |
| 523 | |
| 524 | //============================================================================= |
| 525 | // Function: GetKind |
| 526 | // Purpose: Return the type of the volume. |
| 527 | //============================================================================= |
| 528 | wxFSVolumeKind wxFSVolumeBase::GetKind() const |
| 529 | { |
| 530 | if (!m_isOk) |
| 531 | return wxFS_VOL_OTHER; |
| 532 | |
| 533 | FileInfoMap::iterator itr = s_fileInfo.find(m_volName); |
| 534 | if (itr == s_fileInfo.end()) |
| 535 | return wxFS_VOL_OTHER; |
| 536 | |
| 537 | return itr->second.m_type; |
| 538 | } |
| 539 | |
| 540 | //============================================================================= |
| 541 | // Function: GetFlags |
| 542 | // Purpose: Return the caches flags for this volume. |
| 543 | // Notes: - Returns -1 if no flags were cached. |
| 544 | //============================================================================= |
| 545 | int wxFSVolumeBase::GetFlags() const |
| 546 | { |
| 547 | if (!m_isOk) |
| 548 | return -1; |
| 549 | |
| 550 | FileInfoMap::iterator itr = s_fileInfo.find(m_volName); |
| 551 | if (itr == s_fileInfo.end()) |
| 552 | return -1; |
| 553 | |
| 554 | return itr->second.m_flags; |
| 555 | } // GetFlags |
| 556 | |
| 557 | #endif // wxUSE_BASE |
| 558 | |
| 559 | // ============================================================================ |
| 560 | // wxFSVolume |
| 561 | // ============================================================================ |
| 562 | |
| 563 | #if wxUSE_GUI |
| 564 | |
| 565 | void wxFSVolume::InitIcons() |
| 566 | { |
| 567 | m_icons.Alloc(wxFS_VOL_ICO_MAX); |
| 568 | wxIcon null; |
| 569 | for (int idx = 0; idx < wxFS_VOL_ICO_MAX; idx++) |
| 570 | m_icons.Add(null); |
| 571 | } |
| 572 | |
| 573 | //============================================================================= |
| 574 | // Function: GetIcon |
| 575 | // Purpose: return the requested icon. |
| 576 | //============================================================================= |
| 577 | |
| 578 | wxIcon wxFSVolume::GetIcon(wxFSIconType type) const |
| 579 | { |
| 580 | wxCHECK_MSG( type >= 0 && (size_t)type < m_icons.GetCount(), wxNullIcon, |
| 581 | _T("wxFSIconType::GetIcon(): invalid icon index") ); |
| 582 | |
| 583 | // Load on demand. |
| 584 | if (m_icons[type].IsNull()) |
| 585 | { |
| 586 | UINT flags = SHGFI_ICON; |
| 587 | switch (type) |
| 588 | { |
| 589 | case wxFS_VOL_ICO_SMALL: |
| 590 | flags |= SHGFI_SMALLICON; |
| 591 | break; |
| 592 | |
| 593 | case wxFS_VOL_ICO_LARGE: |
| 594 | flags |= SHGFI_SHELLICONSIZE; |
| 595 | break; |
| 596 | |
| 597 | case wxFS_VOL_ICO_SEL_SMALL: |
| 598 | flags |= SHGFI_SMALLICON | SHGFI_OPENICON; |
| 599 | break; |
| 600 | |
| 601 | case wxFS_VOL_ICO_SEL_LARGE: |
| 602 | flags |= SHGFI_SHELLICONSIZE | SHGFI_OPENICON; |
| 603 | break; |
| 604 | |
| 605 | case wxFS_VOL_ICO_MAX: |
| 606 | wxFAIL_MSG(_T("wxFS_VOL_ICO_MAX is not valid icon type")); |
| 607 | break; |
| 608 | } |
| 609 | |
| 610 | SHFILEINFO fi; |
| 611 | long rc = SHGetFileInfo(m_volName.wx_str(), 0, &fi, sizeof(fi), flags); |
| 612 | m_icons[type].SetHICON((WXHICON)fi.hIcon); |
| 613 | if (!rc || !fi.hIcon) |
| 614 | wxLogError(_("Cannot load icon from '%s'."), m_volName.c_str()); |
| 615 | } |
| 616 | |
| 617 | return m_icons[type]; |
| 618 | } // GetIcon |
| 619 | |
| 620 | #endif // wxUSE_GUI |
| 621 | |
| 622 | #endif // wxUSE_FSVOLUME |