| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: msw/dir.cpp |
| 3 | // Purpose: wxDir implementation for Win32 |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 08.12.99 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> |
| 9 | // Licence: wxWindows license |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | #ifdef __GNUG__ |
| 21 | #pragma implementation "dir.h" |
| 22 | #endif |
| 23 | |
| 24 | // For compilers that support precompilation, includes "wx.h". |
| 25 | #include "wx/wxprec.h" |
| 26 | |
| 27 | #ifdef __BORLANDC__ |
| 28 | #pragma hdrstop |
| 29 | #endif |
| 30 | |
| 31 | // For _A_SUBDIR, etc. |
| 32 | #if defined(__BORLANDC__) && defined(__WIN16__) |
| 33 | #include <dos.h> |
| 34 | #endif |
| 35 | |
| 36 | #ifndef WX_PRECOMP |
| 37 | #include "wx/intl.h" |
| 38 | #include "wx/log.h" |
| 39 | #endif // PCH |
| 40 | |
| 41 | #include "wx/dir.h" |
| 42 | #include "wx/filefn.h" // for wxPathExists() |
| 43 | |
| 44 | // ---------------------------------------------------------------------------- |
| 45 | // define the types and functions used for file searching |
| 46 | // ---------------------------------------------------------------------------- |
| 47 | |
| 48 | // under Win16 use compiler-specific functions |
| 49 | #ifdef __WIN16__ |
| 50 | #ifdef __VISUALC__ |
| 51 | #include <dos.h> |
| 52 | #include <errno.h> |
| 53 | |
| 54 | typedef struct _find_t FIND_STRUCT; |
| 55 | #elif defined(__BORLANDC__) |
| 56 | #include <dir.h> |
| 57 | |
| 58 | typedef struct ffblk FIND_STRUCT; |
| 59 | #else |
| 60 | #error "No directory searching functions for this compiler" |
| 61 | #endif |
| 62 | |
| 63 | typedef FIND_STRUCT *FIND_DATA; |
| 64 | typedef char FIND_ATTR; |
| 65 | |
| 66 | static inline FIND_DATA InitFindData() { return (FIND_DATA)NULL; } |
| 67 | static inline bool IsFindDataOk(FIND_DATA fd) { return fd != NULL; } |
| 68 | static inline void FreeFindData(FIND_DATA fd) { free(fd); } |
| 69 | |
| 70 | static inline FIND_DATA FindFirst(const wxString& spec, |
| 71 | FIND_STRUCT * WXUNUSED(finddata)) |
| 72 | { |
| 73 | // attribute to find all files |
| 74 | static const FIND_ATTR attr = 0x3F; |
| 75 | |
| 76 | FIND_DATA fd = (FIND_DATA)malloc(sizeof(FIND_STRUCT)); |
| 77 | |
| 78 | if ( |
| 79 | #ifdef __VISUALC__ |
| 80 | _dos_findfirst(spec, attr, fd) == 0 |
| 81 | #else // Borland |
| 82 | findfirst(spec, fd, attr) == 0 |
| 83 | #endif |
| 84 | ) |
| 85 | { |
| 86 | return fd; |
| 87 | } |
| 88 | else |
| 89 | { |
| 90 | free(fd); |
| 91 | |
| 92 | return NULL; |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | static inline bool FindNext(FIND_DATA fd, FIND_STRUCT * WXUNUSED(finddata)) |
| 97 | { |
| 98 | #ifdef __VISUALC__ |
| 99 | return _dos_findnext(fd) == 0; |
| 100 | #else // Borland |
| 101 | return findnext(fd) == 0; |
| 102 | #endif |
| 103 | } |
| 104 | |
| 105 | static const wxChar *GetNameFromFindData(FIND_STRUCT *finddata) |
| 106 | { |
| 107 | #ifdef __VISUALC__ |
| 108 | return finddata->name; |
| 109 | #else // Borland |
| 110 | return finddata->ff_name; |
| 111 | #endif |
| 112 | } |
| 113 | |
| 114 | static const FIND_ATTR GetAttrFromFindData(FIND_STRUCT *finddata) |
| 115 | { |
| 116 | #ifdef __VISUALC__ |
| 117 | return finddata->attrib; |
| 118 | #else // Borland |
| 119 | return finddata->ff_attrib; |
| 120 | #endif |
| 121 | } |
| 122 | |
| 123 | static inline bool IsDir(FIND_ATTR attr) |
| 124 | { |
| 125 | return (attr & _A_SUBDIR) != 0; |
| 126 | } |
| 127 | |
| 128 | static inline bool IsHidden(FIND_ATTR attr) |
| 129 | { |
| 130 | return (attr & (_A_SYSTEM | _A_HIDDEN)) != 0; |
| 131 | } |
| 132 | #else // Win32 |
| 133 | #include <windows.h> |
| 134 | |
| 135 | typedef WIN32_FIND_DATA FIND_STRUCT; |
| 136 | typedef HANDLE FIND_DATA; |
| 137 | typedef DWORD FIND_ATTR; |
| 138 | |
| 139 | static inline FIND_DATA InitFindData() { return INVALID_HANDLE_VALUE; } |
| 140 | |
| 141 | static inline bool IsFindDataOk(FIND_DATA fd) |
| 142 | { |
| 143 | return fd != INVALID_HANDLE_VALUE; |
| 144 | } |
| 145 | |
| 146 | static inline void FreeFindData(FIND_DATA fd) |
| 147 | { |
| 148 | if ( !::FindClose(fd) ) |
| 149 | { |
| 150 | wxLogLastError(_T("FindClose")); |
| 151 | } |
| 152 | } |
| 153 | |
| 154 | static inline FIND_DATA FindFirst(const wxString& spec, |
| 155 | FIND_STRUCT *finddata) |
| 156 | { |
| 157 | return ::FindFirstFile(spec, finddata); |
| 158 | } |
| 159 | |
| 160 | static inline bool FindNext(FIND_DATA fd, FIND_STRUCT *finddata) |
| 161 | { |
| 162 | return ::FindNextFile(fd, finddata) != 0; |
| 163 | } |
| 164 | |
| 165 | static const wxChar *GetNameFromFindData(FIND_STRUCT *finddata) |
| 166 | { |
| 167 | return finddata->cFileName; |
| 168 | } |
| 169 | |
| 170 | static const FIND_ATTR GetAttrFromFindData(FIND_STRUCT *finddata) |
| 171 | { |
| 172 | return finddata->dwFileAttributes; |
| 173 | } |
| 174 | |
| 175 | static inline bool IsDir(FIND_ATTR attr) |
| 176 | { |
| 177 | return (attr & FILE_ATTRIBUTE_DIRECTORY) != 0; |
| 178 | } |
| 179 | |
| 180 | static inline bool IsHidden(FIND_ATTR attr) |
| 181 | { |
| 182 | return (attr & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) != 0; |
| 183 | } |
| 184 | #endif // __WIN16__ |
| 185 | |
| 186 | // ---------------------------------------------------------------------------- |
| 187 | // constants |
| 188 | // ---------------------------------------------------------------------------- |
| 189 | |
| 190 | #ifndef MAX_PATH |
| 191 | #define MAX_PATH 260 // from VC++ headers |
| 192 | #endif |
| 193 | |
| 194 | // ---------------------------------------------------------------------------- |
| 195 | // macros |
| 196 | // ---------------------------------------------------------------------------- |
| 197 | |
| 198 | #define M_DIR ((wxDirData *)m_data) |
| 199 | |
| 200 | // ---------------------------------------------------------------------------- |
| 201 | // private classes |
| 202 | // ---------------------------------------------------------------------------- |
| 203 | |
| 204 | // this class stores everything we need to enumerate the files |
| 205 | class wxDirData |
| 206 | { |
| 207 | public: |
| 208 | wxDirData(const wxString& dirname); |
| 209 | ~wxDirData(); |
| 210 | |
| 211 | void SetFileSpec(const wxString& filespec) { m_filespec = filespec; } |
| 212 | void SetFlags(int flags) { m_flags = flags; } |
| 213 | |
| 214 | void Close(); |
| 215 | void Rewind(); |
| 216 | bool Read(wxString *filename); |
| 217 | |
| 218 | const wxString& GetName() const { return m_dirname; } |
| 219 | |
| 220 | private: |
| 221 | FIND_DATA m_finddata; |
| 222 | |
| 223 | wxString m_dirname; |
| 224 | wxString m_filespec; |
| 225 | |
| 226 | int m_flags; |
| 227 | }; |
| 228 | |
| 229 | // ============================================================================ |
| 230 | // implementation |
| 231 | // ============================================================================ |
| 232 | |
| 233 | // ---------------------------------------------------------------------------- |
| 234 | // wxDirData |
| 235 | // ---------------------------------------------------------------------------- |
| 236 | |
| 237 | wxDirData::wxDirData(const wxString& dirname) |
| 238 | : m_dirname(dirname) |
| 239 | { |
| 240 | m_finddata = InitFindData(); |
| 241 | } |
| 242 | |
| 243 | wxDirData::~wxDirData() |
| 244 | { |
| 245 | Close(); |
| 246 | } |
| 247 | |
| 248 | void wxDirData::Close() |
| 249 | { |
| 250 | if ( IsFindDataOk(m_finddata) ) |
| 251 | { |
| 252 | FreeFindData(m_finddata); |
| 253 | |
| 254 | m_finddata = InitFindData(); |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | void wxDirData::Rewind() |
| 259 | { |
| 260 | Close(); |
| 261 | } |
| 262 | |
| 263 | bool wxDirData::Read(wxString *filename) |
| 264 | { |
| 265 | bool first = FALSE; |
| 266 | |
| 267 | #ifdef __WIN32__ |
| 268 | WIN32_FIND_DATA finddata; |
| 269 | #define PTR_TO_FINDDATA (&finddata) |
| 270 | #else // Win16 |
| 271 | #define PTR_TO_FINDDATA (m_finddata) |
| 272 | #endif |
| 273 | |
| 274 | if ( !IsFindDataOk(m_finddata) ) |
| 275 | { |
| 276 | // open first |
| 277 | wxString filespec = m_dirname; |
| 278 | if ( !wxEndsWithPathSeparator(filespec) ) |
| 279 | { |
| 280 | filespec += _T('\\'); |
| 281 | } |
| 282 | filespec += (!m_filespec ? _T("*.*") : m_filespec.c_str()); |
| 283 | |
| 284 | m_finddata = FindFirst(filespec, PTR_TO_FINDDATA); |
| 285 | |
| 286 | first = TRUE; |
| 287 | } |
| 288 | |
| 289 | if ( !IsFindDataOk(m_finddata) ) |
| 290 | { |
| 291 | #ifdef __WIN32__ |
| 292 | DWORD err = ::GetLastError(); |
| 293 | |
| 294 | if ( err != ERROR_FILE_NOT_FOUND ) |
| 295 | { |
| 296 | wxLogSysError(err, _("Can not enumerate files in directory '%s'"), |
| 297 | m_dirname.c_str()); |
| 298 | } |
| 299 | #endif // __WIN32__ |
| 300 | //else: not an error, just no (such) files |
| 301 | |
| 302 | return FALSE; |
| 303 | } |
| 304 | |
| 305 | const wxChar *name; |
| 306 | FIND_ATTR attr; |
| 307 | |
| 308 | for ( ;; ) |
| 309 | { |
| 310 | if ( first ) |
| 311 | { |
| 312 | first = FALSE; |
| 313 | } |
| 314 | else |
| 315 | { |
| 316 | if ( !FindNext(m_finddata, PTR_TO_FINDDATA) ) |
| 317 | { |
| 318 | #ifdef __WIN32__ |
| 319 | DWORD err = ::GetLastError(); |
| 320 | |
| 321 | if ( err != ERROR_NO_MORE_FILES ) |
| 322 | { |
| 323 | wxLogLastError(_T("FindNext")); |
| 324 | } |
| 325 | #endif // __WIN32__ |
| 326 | //else: not an error, just no more (such) files |
| 327 | |
| 328 | return FALSE; |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | name = GetNameFromFindData(PTR_TO_FINDDATA); |
| 333 | attr = GetAttrFromFindData(PTR_TO_FINDDATA); |
| 334 | |
| 335 | // don't return "." and ".." unless asked for |
| 336 | if ( name[0] == _T('.') && |
| 337 | ((name[1] == _T('.') && name[2] == _T('\0')) || |
| 338 | (name[1] == _T('\0'))) ) |
| 339 | { |
| 340 | if ( !(m_flags & wxDIR_DOTDOT) ) |
| 341 | continue; |
| 342 | } |
| 343 | |
| 344 | // check the type now |
| 345 | if ( !(m_flags & wxDIR_FILES) && !IsDir(attr) ) |
| 346 | { |
| 347 | // it's a file, but we don't want them |
| 348 | continue; |
| 349 | } |
| 350 | else if ( !(m_flags & wxDIR_DIRS) && IsDir(attr) ) |
| 351 | { |
| 352 | // it's a dir, and we don't want it |
| 353 | continue; |
| 354 | } |
| 355 | |
| 356 | // finally, check whether it's a hidden file |
| 357 | if ( !(m_flags & wxDIR_HIDDEN) ) |
| 358 | { |
| 359 | if ( IsHidden(attr) ) |
| 360 | { |
| 361 | // it's a hidden file, skip it |
| 362 | continue; |
| 363 | } |
| 364 | } |
| 365 | |
| 366 | *filename = name; |
| 367 | |
| 368 | break; |
| 369 | } |
| 370 | |
| 371 | return TRUE; |
| 372 | } |
| 373 | |
| 374 | // ---------------------------------------------------------------------------- |
| 375 | // wxDir helpers |
| 376 | // ---------------------------------------------------------------------------- |
| 377 | |
| 378 | /* static */ |
| 379 | bool wxDir::Exists(const wxString& dir) |
| 380 | { |
| 381 | return wxPathExists(dir); |
| 382 | } |
| 383 | |
| 384 | // ---------------------------------------------------------------------------- |
| 385 | // wxDir construction/destruction |
| 386 | // ---------------------------------------------------------------------------- |
| 387 | |
| 388 | wxDir::wxDir(const wxString& dirname) |
| 389 | { |
| 390 | m_data = NULL; |
| 391 | |
| 392 | (void)Open(dirname); |
| 393 | } |
| 394 | |
| 395 | bool wxDir::Open(const wxString& dirname) |
| 396 | { |
| 397 | delete M_DIR; |
| 398 | m_data = new wxDirData(dirname); |
| 399 | |
| 400 | return TRUE; |
| 401 | } |
| 402 | |
| 403 | bool wxDir::IsOpened() const |
| 404 | { |
| 405 | return m_data != NULL; |
| 406 | } |
| 407 | |
| 408 | wxString wxDir::GetName() const |
| 409 | { |
| 410 | wxString name; |
| 411 | if ( m_data ) |
| 412 | { |
| 413 | name = M_DIR->GetName(); |
| 414 | if ( !name.empty() ) |
| 415 | { |
| 416 | // bring to canonical Windows form |
| 417 | name.Replace(_T("/"), _T("\\")); |
| 418 | |
| 419 | if ( name.Last() == _T('\\') ) |
| 420 | { |
| 421 | // chop off the last (back)slash |
| 422 | name.Truncate(name.length() - 1); |
| 423 | } |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | return name; |
| 428 | } |
| 429 | |
| 430 | wxDir::~wxDir() |
| 431 | { |
| 432 | delete M_DIR; |
| 433 | } |
| 434 | |
| 435 | // ---------------------------------------------------------------------------- |
| 436 | // wxDir enumerating |
| 437 | // ---------------------------------------------------------------------------- |
| 438 | |
| 439 | bool wxDir::GetFirst(wxString *filename, |
| 440 | const wxString& filespec, |
| 441 | int flags) const |
| 442 | { |
| 443 | wxCHECK_MSG( IsOpened(), FALSE, _T("must wxDir::Open() first") ); |
| 444 | |
| 445 | M_DIR->Rewind(); |
| 446 | |
| 447 | M_DIR->SetFileSpec(filespec); |
| 448 | M_DIR->SetFlags(flags); |
| 449 | |
| 450 | return GetNext(filename); |
| 451 | } |
| 452 | |
| 453 | bool wxDir::GetNext(wxString *filename) const |
| 454 | { |
| 455 | wxCHECK_MSG( IsOpened(), FALSE, _T("must wxDir::Open() first") ); |
| 456 | |
| 457 | wxCHECK_MSG( filename, FALSE, _T("bad pointer in wxDir::GetNext()") ); |
| 458 | |
| 459 | return M_DIR->Read(filename); |
| 460 | } |