| 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 | #ifdef __GNUG__ |
| 21 | #pragma implementation "fsvolume.h" |
| 22 | #endif |
| 23 | |
| 24 | #include "wx/wxprec.h" |
| 25 | |
| 26 | #ifdef __BORLANDC__ |
| 27 | #pragma hdrstop |
| 28 | #endif |
| 29 | |
| 30 | #if wxUSE_FSVOLUME |
| 31 | |
| 32 | #ifndef WX_PRECOMP |
| 33 | #include "wx/icon.h" |
| 34 | #include "wx/intl.h" |
| 35 | #endif // WX_PRECOMP |
| 36 | |
| 37 | #include "wx/dir.h" |
| 38 | #include "wx/hashmap.h" |
| 39 | #include "wx/dynlib.h" |
| 40 | #include "wx/arrimpl.cpp" |
| 41 | |
| 42 | #include "wx/volume.h" |
| 43 | |
| 44 | #include <shellapi.h> |
| 45 | |
| 46 | #ifndef SHGetFileInfo |
| 47 | #ifdef UNICODE |
| 48 | #define SHGetFileInfo SHGetFileInfoW |
| 49 | #else |
| 50 | #define SHGetFileInfo SHGetFileInfoA |
| 51 | #endif |
| 52 | #endif |
| 53 | |
| 54 | #ifndef SHGFI_ATTRIBUTES |
| 55 | #define SHGFI_ATTRIBUTES 2048 |
| 56 | #endif |
| 57 | |
| 58 | #ifndef SFGAO_READONLY |
| 59 | #define SFGAO_READONLY 0x00040000L |
| 60 | #endif |
| 61 | |
| 62 | #ifndef SFGAO_REMOVABLE |
| 63 | #define SFGAO_REMOVABLE 0x02000000L |
| 64 | #endif |
| 65 | |
| 66 | #ifndef SHGFI_DISPLAYNAME |
| 67 | #define SHGFI_DISPLAYNAME 512 |
| 68 | #endif |
| 69 | |
| 70 | #ifndef SHGFI_ICON |
| 71 | #define SHGFI_ICON 256 |
| 72 | #endif |
| 73 | |
| 74 | #ifndef SHGFI_SMALLICON |
| 75 | #define SHGFI_SMALLICON 1 |
| 76 | #endif |
| 77 | |
| 78 | #ifndef SHGFI_SHELLICONSIZE |
| 79 | #define SHGFI_SHELLICONSIZE 4 |
| 80 | #endif |
| 81 | |
| 82 | #ifndef SHGFI_OPENICON |
| 83 | #define SHGFI_OPENICON 2 |
| 84 | #endif |
| 85 | |
| 86 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 87 | // Dynamic library function defs. |
| 88 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 89 | |
| 90 | static wxDynamicLibrary s_mprLib; |
| 91 | |
| 92 | typedef DWORD (WINAPI* WNetOpenEnumPtr)(DWORD, DWORD, DWORD, LPNETRESOURCE, LPHANDLE); |
| 93 | typedef DWORD (WINAPI* WNetEnumResourcePtr)(HANDLE, LPDWORD, LPVOID, LPDWORD); |
| 94 | typedef DWORD (WINAPI* WNetCloseEnumPtr)(HANDLE); |
| 95 | |
| 96 | static WNetOpenEnumPtr s_pWNetOpenEnum; |
| 97 | static WNetEnumResourcePtr s_pWNetEnumResource; |
| 98 | static WNetCloseEnumPtr s_pWNetCloseEnum; |
| 99 | |
| 100 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 101 | // Globals/Statics |
| 102 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 103 | static long s_cancelSearch = FALSE; |
| 104 | |
| 105 | struct FileInfo |
| 106 | { |
| 107 | FileInfo(unsigned flag=0, wxFSVolumeKind type=wxFS_VOL_OTHER) : |
| 108 | m_flags(flag), m_type(type) {} |
| 109 | |
| 110 | FileInfo(const FileInfo& other) { *this = other; } |
| 111 | FileInfo& operator=(const FileInfo& other) |
| 112 | { |
| 113 | m_flags = other.m_flags; |
| 114 | m_type = other.m_type; |
| 115 | return *this; |
| 116 | } |
| 117 | |
| 118 | unsigned m_flags; |
| 119 | wxFSVolumeKind m_type; |
| 120 | }; |
| 121 | WX_DECLARE_STRING_HASH_MAP(FileInfo, FileInfoMap); |
| 122 | // Cygwin bug (?) destructor for global s_fileInfo is called twice... |
| 123 | static FileInfoMap& GetFileInfoMap() |
| 124 | { |
| 125 | static FileInfoMap s_fileInfo(25); |
| 126 | |
| 127 | return s_fileInfo; |
| 128 | } |
| 129 | #define s_fileInfo (GetFileInfoMap()) |
| 130 | |
| 131 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 132 | // Other initialization. |
| 133 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 134 | #if wxUSE_GUI |
| 135 | // already in wx/iconbndl.h |
| 136 | // WX_DEFINE_OBJARRAY(wxIconArray); |
| 137 | #endif |
| 138 | |
| 139 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 140 | // Local helper functions. |
| 141 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 142 | |
| 143 | //============================================================================= |
| 144 | // Function: GetBasicFlags |
| 145 | // Purpose: Set basic flags, primarily wxFS_VOL_REMOTE and wxFS_VOL_REMOVABLE. |
| 146 | // Notes: - Local and mapped drives are mounted by definition. We have no |
| 147 | // way to determine mounted status of network drives, so assume that |
| 148 | // all drives are mounted, and let the caller decide otherwise. |
| 149 | // - Other flags are 'best guess' from type of drive. The system will |
| 150 | // not report the file attributes with any degree of accuracy. |
| 151 | //============================================================================= |
| 152 | static unsigned GetBasicFlags(const wxChar* filename) |
| 153 | { |
| 154 | unsigned flags = wxFS_VOL_MOUNTED; |
| 155 | |
| 156 | //---------------------------------- |
| 157 | // 'Best Guess' based on drive type. |
| 158 | //---------------------------------- |
| 159 | wxFSVolumeKind type; |
| 160 | switch(GetDriveType(filename)) |
| 161 | { |
| 162 | case DRIVE_FIXED: |
| 163 | type = wxFS_VOL_DISK; |
| 164 | break; |
| 165 | |
| 166 | case DRIVE_REMOVABLE: |
| 167 | flags |= wxFS_VOL_REMOVABLE; |
| 168 | type = wxFS_VOL_FLOPPY; |
| 169 | break; |
| 170 | |
| 171 | case DRIVE_CDROM: |
| 172 | flags |= wxFS_VOL_REMOVABLE | wxFS_VOL_READONLY; |
| 173 | type = wxFS_VOL_CDROM; |
| 174 | break; |
| 175 | |
| 176 | case DRIVE_REMOTE: |
| 177 | flags |= wxFS_VOL_REMOTE; |
| 178 | type = wxFS_VOL_NETWORK; |
| 179 | break; |
| 180 | |
| 181 | case DRIVE_NO_ROOT_DIR: |
| 182 | flags &= ~wxFS_VOL_MOUNTED; |
| 183 | type = wxFS_VOL_OTHER; |
| 184 | break; |
| 185 | |
| 186 | default: |
| 187 | type = wxFS_VOL_OTHER; |
| 188 | break; |
| 189 | } |
| 190 | |
| 191 | //----------------------------------------------------------------------- |
| 192 | // The following will most likely will not modify anything not set above, |
| 193 | // and will not work at all for network shares or empty CD ROM drives. |
| 194 | // But it is a good check if the Win API ever gets better about reporting |
| 195 | // this information. |
| 196 | //----------------------------------------------------------------------- |
| 197 | SHFILEINFO fi; |
| 198 | long rc; |
| 199 | rc = SHGetFileInfo(filename, 0, &fi, sizeof(fi), SHGFI_ATTRIBUTES ); |
| 200 | if (!rc) |
| 201 | { |
| 202 | wxLogError(_("Cannot read typename from '%s'!"), filename); |
| 203 | } |
| 204 | else |
| 205 | { |
| 206 | if (fi.dwAttributes & SFGAO_READONLY) |
| 207 | flags |= wxFS_VOL_READONLY; |
| 208 | if (fi.dwAttributes & SFGAO_REMOVABLE) |
| 209 | flags |= wxFS_VOL_REMOVABLE; |
| 210 | } |
| 211 | |
| 212 | //------------------ |
| 213 | // Flags are cached. |
| 214 | //------------------ |
| 215 | s_fileInfo[filename] = FileInfo(flags, type); |
| 216 | |
| 217 | return flags; |
| 218 | } // GetBasicFlags |
| 219 | |
| 220 | //============================================================================= |
| 221 | // Function: FilteredAdd |
| 222 | // Purpose: Add a file to the list if it meets the filter requirement. |
| 223 | // Notes: - See GetBasicFlags for remarks about the Mounted flag. |
| 224 | //============================================================================= |
| 225 | static bool FilteredAdd(wxArrayString& list, const wxChar* filename, |
| 226 | unsigned flagsSet, unsigned flagsUnset) |
| 227 | { |
| 228 | bool accept = TRUE; |
| 229 | unsigned flags = GetBasicFlags(filename); |
| 230 | |
| 231 | if (flagsSet & wxFS_VOL_MOUNTED && !(flags & wxFS_VOL_MOUNTED)) |
| 232 | accept = FALSE; |
| 233 | else if (flagsUnset & wxFS_VOL_MOUNTED && (flags & wxFS_VOL_MOUNTED)) |
| 234 | accept = FALSE; |
| 235 | else if (flagsSet & wxFS_VOL_REMOVABLE && !(flags & wxFS_VOL_REMOVABLE)) |
| 236 | accept = FALSE; |
| 237 | else if (flagsUnset & wxFS_VOL_REMOVABLE && (flags & wxFS_VOL_REMOVABLE)) |
| 238 | accept = FALSE; |
| 239 | else if (flagsSet & wxFS_VOL_READONLY && !(flags & wxFS_VOL_READONLY)) |
| 240 | accept = FALSE; |
| 241 | else if (flagsUnset & wxFS_VOL_READONLY && (flags & wxFS_VOL_READONLY)) |
| 242 | accept = FALSE; |
| 243 | else if (flagsSet & wxFS_VOL_REMOTE && !(flags & wxFS_VOL_REMOTE)) |
| 244 | accept = FALSE; |
| 245 | else if (flagsUnset & wxFS_VOL_REMOTE && (flags & wxFS_VOL_REMOTE)) |
| 246 | accept = FALSE; |
| 247 | |
| 248 | // Add to the list if passed the filter. |
| 249 | if (accept) |
| 250 | list.Add(filename); |
| 251 | |
| 252 | return accept; |
| 253 | } // FilteredAdd |
| 254 | |
| 255 | //============================================================================= |
| 256 | // Function: BuildListFromNN |
| 257 | // Purpose: Append or remove items from the list |
| 258 | // Notes: - There is no way to find all disconnected NN items, or even to find |
| 259 | // all items while determining which are connected and not. So this |
| 260 | // function will find either all items or connected items. |
| 261 | //============================================================================= |
| 262 | static void BuildListFromNN(wxArrayString& list, NETRESOURCE* pResSrc, |
| 263 | unsigned flagsSet, unsigned flagsUnset) |
| 264 | { |
| 265 | HANDLE hEnum; |
| 266 | int rc; |
| 267 | |
| 268 | //----------------------------------------------- |
| 269 | // Scope may be all drives or all mounted drives. |
| 270 | //----------------------------------------------- |
| 271 | unsigned scope = RESOURCE_GLOBALNET; |
| 272 | if (flagsSet & wxFS_VOL_MOUNTED) |
| 273 | scope = RESOURCE_CONNECTED; |
| 274 | |
| 275 | //---------------------------------------------------------------------- |
| 276 | // Enumerate all items, adding only non-containers (ie. network shares). |
| 277 | // Containers cause a recursive call to this function for their own |
| 278 | // enumeration. |
| 279 | //---------------------------------------------------------------------- |
| 280 | if (rc = s_pWNetOpenEnum(scope, RESOURCETYPE_DISK, 0, pResSrc, &hEnum), rc == NO_ERROR) |
| 281 | { |
| 282 | DWORD count = 1; |
| 283 | DWORD size = 256; |
| 284 | NETRESOURCE* pRes = (NETRESOURCE*)malloc(size); |
| 285 | memset(pRes, 0, sizeof(NETRESOURCE)); |
| 286 | while (rc = s_pWNetEnumResource(hEnum, &count, pRes, &size), rc == NO_ERROR || rc == ERROR_MORE_DATA) |
| 287 | { |
| 288 | if (s_cancelSearch) |
| 289 | break; |
| 290 | |
| 291 | if (rc == ERROR_MORE_DATA) |
| 292 | { |
| 293 | pRes = (NETRESOURCE*)realloc(pRes, size); |
| 294 | count = 1; |
| 295 | } |
| 296 | else if (count == 1) |
| 297 | { |
| 298 | // Enumerate the container. |
| 299 | if (pRes->dwUsage & RESOURCEUSAGE_CONTAINER) |
| 300 | { |
| 301 | BuildListFromNN(list, pRes, flagsSet, flagsUnset); |
| 302 | } |
| 303 | |
| 304 | // Add the network share. |
| 305 | else |
| 306 | { |
| 307 | wxString filename(pRes->lpRemoteName); |
| 308 | |
| 309 | if (filename.Len()) |
| 310 | { |
| 311 | if (filename.Last() != '\\') |
| 312 | filename.Append('\\'); |
| 313 | |
| 314 | // The filter function will not know mounted from unmounted, and neither do we unless |
| 315 | // we are iterating using RESOURCE_CONNECTED, in which case they all are mounted. |
| 316 | // Volumes on disconnected servers, however, will correctly show as unmounted. |
| 317 | FilteredAdd(list, filename, flagsSet, flagsUnset&~wxFS_VOL_MOUNTED); |
| 318 | if (scope == RESOURCE_GLOBALNET) |
| 319 | s_fileInfo[filename].m_flags &= ~wxFS_VOL_MOUNTED; |
| 320 | } |
| 321 | } |
| 322 | } |
| 323 | else if (count == 0) |
| 324 | break; |
| 325 | } |
| 326 | free(pRes); |
| 327 | s_pWNetCloseEnum(hEnum); |
| 328 | } |
| 329 | } // BuildListFromNN |
| 330 | |
| 331 | //============================================================================= |
| 332 | // Function: CompareFcn |
| 333 | // Purpose: Used to sort the NN list alphabetically, case insensitive. |
| 334 | //============================================================================= |
| 335 | static int CompareFcn(const wxString& first, const wxString& second) |
| 336 | { |
| 337 | return wxStricmp(first.c_str(), second.c_str()); |
| 338 | } // CompareFcn |
| 339 | |
| 340 | //============================================================================= |
| 341 | // Function: BuildRemoteList |
| 342 | // Purpose: Append Network Neighborhood items to the list. |
| 343 | // Notes: - Mounted gets transalated into Connected. FilteredAdd is told |
| 344 | // to ignore the Mounted flag since we need to handle it in a weird |
| 345 | // way manually. |
| 346 | // - The resulting list is sorted alphabetically. |
| 347 | //============================================================================= |
| 348 | static bool BuildRemoteList(wxArrayString& list, NETRESOURCE* pResSrc, |
| 349 | unsigned flagsSet, unsigned flagsUnset) |
| 350 | { |
| 351 | // NN query depends on dynamically loaded library. |
| 352 | if (!s_pWNetOpenEnum || !s_pWNetEnumResource || !s_pWNetCloseEnum) |
| 353 | { |
| 354 | wxLogError(_("Failed to load mpr.dll.")); |
| 355 | return FALSE; |
| 356 | } |
| 357 | |
| 358 | // Don't waste time doing the work if the flags conflict. |
| 359 | if (flagsSet & wxFS_VOL_MOUNTED && flagsUnset & wxFS_VOL_MOUNTED) |
| 360 | return FALSE; |
| 361 | |
| 362 | //---------------------------------------------- |
| 363 | // Generate the list according to the flags set. |
| 364 | //---------------------------------------------- |
| 365 | BuildListFromNN(list, pResSrc, flagsSet, flagsUnset); |
| 366 | list.Sort(CompareFcn); |
| 367 | |
| 368 | //------------------------------------------------------------------------- |
| 369 | // If mounted only is requested, then we only need one simple pass. |
| 370 | // Otherwise, we need to build a list of all NN volumes and then apply the |
| 371 | // list of mounted drives to it. |
| 372 | //------------------------------------------------------------------------- |
| 373 | if (!(flagsSet & wxFS_VOL_MOUNTED)) |
| 374 | { |
| 375 | // generate. |
| 376 | wxArrayString mounted; |
| 377 | BuildListFromNN(mounted, pResSrc, flagsSet | wxFS_VOL_MOUNTED, flagsUnset & ~wxFS_VOL_MOUNTED); |
| 378 | mounted.Sort(CompareFcn); |
| 379 | |
| 380 | // apply list from bottom to top to preserve indexes if removing items. |
| 381 | int iList = list.GetCount()-1; |
| 382 | int iMounted; |
| 383 | for (iMounted = mounted.GetCount()-1; iMounted >= 0 && iList >= 0; iMounted--) |
| 384 | { |
| 385 | int compare; |
| 386 | wxString all(list[iList]); |
| 387 | wxString mount(mounted[iMounted]); |
| 388 | |
| 389 | while (compare = |
| 390 | wxStricmp(list[iList].c_str(), mounted[iMounted].c_str()), |
| 391 | compare > 0 && iList >= 0) |
| 392 | { |
| 393 | iList--; |
| 394 | all = list[iList]; |
| 395 | } |
| 396 | |
| 397 | |
| 398 | if (compare == 0) |
| 399 | { |
| 400 | // Found the element. Remove it or mark it mounted. |
| 401 | if (flagsUnset & wxFS_VOL_MOUNTED) |
| 402 | list.Remove(iList); |
| 403 | else |
| 404 | s_fileInfo[list[iList]].m_flags |= wxFS_VOL_MOUNTED; |
| 405 | |
| 406 | } |
| 407 | |
| 408 | iList--; |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | return TRUE; |
| 413 | } // BuildRemoteList |
| 414 | |
| 415 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 416 | // wxFSVolume |
| 417 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 418 | |
| 419 | //============================================================================= |
| 420 | // Function: GetVolumes |
| 421 | // Purpose: Generate and return a list of all volumes (drives) available. |
| 422 | // Notes: |
| 423 | //============================================================================= |
| 424 | wxArrayString wxFSVolume::GetVolumes(int flagsSet, int flagsUnset) |
| 425 | { |
| 426 | InterlockedExchange(&s_cancelSearch, FALSE); // reset |
| 427 | |
| 428 | if (!s_mprLib.IsLoaded() && s_mprLib.Load(_T("mpr.dll"))) |
| 429 | { |
| 430 | #ifdef UNICODE |
| 431 | s_pWNetOpenEnum = (WNetOpenEnumPtr)s_mprLib.GetSymbol(_T("WNetOpenEnumW")); |
| 432 | s_pWNetEnumResource = (WNetEnumResourcePtr)s_mprLib.GetSymbol(_T("WNetEnumResourceW")); |
| 433 | #else |
| 434 | s_pWNetOpenEnum = (WNetOpenEnumPtr)s_mprLib.GetSymbol(_T("WNetOpenEnumA")); |
| 435 | s_pWNetEnumResource = (WNetEnumResourcePtr)s_mprLib.GetSymbol(_T("WNetEnumResourceA")); |
| 436 | #endif |
| 437 | s_pWNetCloseEnum = (WNetCloseEnumPtr)s_mprLib.GetSymbol(_T("WNetCloseEnum")); |
| 438 | } |
| 439 | |
| 440 | wxArrayString list; |
| 441 | |
| 442 | //------------------------------- |
| 443 | // Local and mapped drives first. |
| 444 | //------------------------------- |
| 445 | // Allocate the required space for the API call. |
| 446 | size_t chars = GetLogicalDriveStrings(0, 0); |
| 447 | TCHAR* buf = new TCHAR[chars+1]; |
| 448 | |
| 449 | // Get the list of drives. |
| 450 | chars = GetLogicalDriveStrings(chars, buf); |
| 451 | |
| 452 | // Parse the list into an array, applying appropriate filters. |
| 453 | TCHAR *pVol; |
| 454 | pVol = buf; |
| 455 | while (*pVol) |
| 456 | { |
| 457 | FilteredAdd(list, pVol, flagsSet, flagsUnset); |
| 458 | pVol = pVol + wxStrlen(pVol) + 1; |
| 459 | } |
| 460 | |
| 461 | // Cleanup. |
| 462 | delete[] buf; |
| 463 | |
| 464 | //--------------------------- |
| 465 | // Network Neighborhood next. |
| 466 | //--------------------------- |
| 467 | |
| 468 | // not exclude remote and not removable |
| 469 | if (!(flagsUnset & wxFS_VOL_REMOTE) && |
| 470 | !(flagsSet & wxFS_VOL_REMOVABLE) |
| 471 | ) |
| 472 | { |
| 473 | // The returned list will be sorted alphabetically. We don't pass |
| 474 | // our in since we don't want to change to order of the local drives. |
| 475 | wxArrayString nn; |
| 476 | if (BuildRemoteList(nn, 0, flagsSet, flagsUnset)) |
| 477 | { |
| 478 | for (size_t idx = 0; idx < nn.GetCount(); idx++) |
| 479 | list.Add(nn[idx]); |
| 480 | } |
| 481 | } |
| 482 | |
| 483 | return list; |
| 484 | } // GetVolumes |
| 485 | |
| 486 | //============================================================================= |
| 487 | // Function: CancelSearch |
| 488 | // Purpose: Instruct an active search to stop. |
| 489 | // Notes: - This will only sensibly be called by a thread other than the one |
| 490 | // performing the search. This is the only thread-safe function |
| 491 | // provided by the class. |
| 492 | //============================================================================= |
| 493 | void wxFSVolume::CancelSearch() |
| 494 | { |
| 495 | InterlockedExchange(&s_cancelSearch, TRUE); |
| 496 | } // CancelSearch |
| 497 | |
| 498 | //============================================================================= |
| 499 | // Function: constructor |
| 500 | // Purpose: default constructor |
| 501 | //============================================================================= |
| 502 | wxFSVolume::wxFSVolume() |
| 503 | { |
| 504 | m_isOk = FALSE; |
| 505 | } // wxVolume |
| 506 | |
| 507 | //============================================================================= |
| 508 | // Function: constructor |
| 509 | // Purpose: constructor that calls Create |
| 510 | //============================================================================= |
| 511 | wxFSVolume::wxFSVolume(const wxString& name) |
| 512 | { |
| 513 | Create(name); |
| 514 | } // wxVolume |
| 515 | |
| 516 | //============================================================================= |
| 517 | // Function: Create |
| 518 | // Purpose: Finds, logs in, etc. to the request volume. |
| 519 | //============================================================================= |
| 520 | bool wxFSVolume::Create(const wxString& name) |
| 521 | { |
| 522 | // assume fail. |
| 523 | m_isOk = FALSE; |
| 524 | |
| 525 | // supplied. |
| 526 | m_volName = name; |
| 527 | |
| 528 | // Display name. |
| 529 | SHFILEINFO fi; |
| 530 | long rc = SHGetFileInfo(m_volName, 0, &fi, sizeof(fi), SHGFI_DISPLAYNAME); |
| 531 | if (!rc) |
| 532 | { |
| 533 | wxLogError(_("Cannot read typename from '%s'!"), m_volName.c_str()); |
| 534 | return m_isOk; |
| 535 | } |
| 536 | m_dispName = fi.szDisplayName; |
| 537 | |
| 538 | #if wxUSE_GUI |
| 539 | |
| 540 | m_icons.Alloc(wxFS_VOL_ICO_MAX); |
| 541 | int idx; |
| 542 | wxIcon null; |
| 543 | for (idx = 0; idx < wxFS_VOL_ICO_MAX; idx++) |
| 544 | m_icons.Add(null); |
| 545 | |
| 546 | #endif |
| 547 | |
| 548 | // all tests passed. |
| 549 | return m_isOk = TRUE; |
| 550 | } // Create |
| 551 | |
| 552 | //============================================================================= |
| 553 | // Function: IsOk |
| 554 | // Purpose: returns TRUE if the volume is legal. |
| 555 | // Notes: For fixed disks, it must exist. For removable disks, it must also |
| 556 | // be present. For Network Shares, it must also be logged in, etc. |
| 557 | //============================================================================= |
| 558 | bool wxFSVolume::IsOk() const |
| 559 | { |
| 560 | return m_isOk; |
| 561 | } // IsOk |
| 562 | |
| 563 | //============================================================================= |
| 564 | // Function: GetKind |
| 565 | // Purpose: Return the type of the volume. |
| 566 | //============================================================================= |
| 567 | wxFSVolumeKind wxFSVolume::GetKind() const |
| 568 | { |
| 569 | if (!m_isOk) |
| 570 | return wxFS_VOL_OTHER; |
| 571 | |
| 572 | FileInfoMap::iterator itr = s_fileInfo.find(m_volName); |
| 573 | if (itr == s_fileInfo.end()) |
| 574 | return wxFS_VOL_OTHER; |
| 575 | |
| 576 | return itr->second.m_type; |
| 577 | } |
| 578 | |
| 579 | //============================================================================= |
| 580 | // Function: GetFlags |
| 581 | // Purpose: Return the caches flags for this volume. |
| 582 | // Notes: - Returns -1 if no flags were cached. |
| 583 | //============================================================================= |
| 584 | int wxFSVolume::GetFlags() const |
| 585 | { |
| 586 | if (!m_isOk) |
| 587 | return -1; |
| 588 | |
| 589 | FileInfoMap::iterator itr = s_fileInfo.find(m_volName); |
| 590 | if (itr == s_fileInfo.end()) |
| 591 | return -1; |
| 592 | |
| 593 | return itr->second.m_flags; |
| 594 | } // GetFlags |
| 595 | |
| 596 | #if wxUSE_GUI |
| 597 | |
| 598 | //============================================================================= |
| 599 | // Function: GetIcon |
| 600 | // Purpose: return the requested icon. |
| 601 | //============================================================================= |
| 602 | wxIcon wxFSVolume::GetIcon(wxFSIconType type) const |
| 603 | { |
| 604 | wxCHECK_MSG(type < (int)m_icons.GetCount(), wxNullIcon, |
| 605 | _T("Invalid request for icon type!")); |
| 606 | wxCHECK_MSG( type >= 0 && (size_t)type < m_icons.GetCount(), |
| 607 | wxIcon(), |
| 608 | _T("invalid icon index") ); |
| 609 | |
| 610 | // Load on demand. |
| 611 | if (m_icons[type].IsNull()) |
| 612 | { |
| 613 | unsigned flags = 0; |
| 614 | switch (type) |
| 615 | { |
| 616 | case wxFS_VOL_ICO_SMALL: |
| 617 | flags = SHGFI_ICON | SHGFI_SMALLICON; |
| 618 | break; |
| 619 | |
| 620 | case wxFS_VOL_ICO_LARGE: |
| 621 | flags = SHGFI_ICON | SHGFI_SHELLICONSIZE; |
| 622 | break; |
| 623 | |
| 624 | case wxFS_VOL_ICO_SEL_SMALL: |
| 625 | flags = SHGFI_ICON | SHGFI_SMALLICON | SHGFI_OPENICON; |
| 626 | break; |
| 627 | |
| 628 | case wxFS_VOL_ICO_SEL_LARGE: |
| 629 | flags = SHGFI_ICON | SHGFI_SHELLICONSIZE | SHGFI_OPENICON; |
| 630 | break; |
| 631 | |
| 632 | case wxFS_VOL_ICO_MAX: |
| 633 | wxFAIL_MSG(_T("wxFS_VOL_ICO_MAX is not valid icon type")); |
| 634 | break; |
| 635 | } |
| 636 | |
| 637 | SHFILEINFO fi; |
| 638 | long rc = SHGetFileInfo(m_volName, 0, &fi, sizeof(fi), flags); |
| 639 | m_icons[type].SetHICON((WXHICON)fi.hIcon); |
| 640 | if (!rc || !fi.hIcon) |
| 641 | wxLogError(_("Cannot load icon from '%s'."), m_volName.c_str()); |
| 642 | } |
| 643 | |
| 644 | return m_icons[type]; |
| 645 | } // GetIcon |
| 646 | |
| 647 | #endif // wxUSE_GUI |
| 648 | |
| 649 | #endif // wxUSE_FSVOLUME |
| 650 | |