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1944c6bd VZ |
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 | ||
f6081a04 JS |
31 | // For _A_SUBDIR, etc. |
32 | #if defined(__BORLANDC__) && defined(__WIN16__) | |
33 | #include <dos.h> | |
34 | #endif | |
35 | ||
1944c6bd VZ |
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 | ||
8f177c8e VZ |
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 | { | |
c5a1681b | 157 | return ::FindFirstFile(spec, finddata); |
8f177c8e VZ |
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__ | |
1944c6bd VZ |
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 | ||
35332784 VZ |
218 | const wxString& GetName() const { return m_dirname; } |
219 | ||
1944c6bd | 220 | private: |
8f177c8e | 221 | FIND_DATA m_finddata; |
1944c6bd VZ |
222 | |
223 | wxString m_dirname; | |
224 | wxString m_filespec; | |
225 | ||
226 | int m_flags; | |
22f3361e VZ |
227 | |
228 | DECLARE_NO_COPY_CLASS(wxDirData) | |
1944c6bd VZ |
229 | }; |
230 | ||
231 | // ============================================================================ | |
232 | // implementation | |
233 | // ============================================================================ | |
234 | ||
235 | // ---------------------------------------------------------------------------- | |
236 | // wxDirData | |
237 | // ---------------------------------------------------------------------------- | |
238 | ||
239 | wxDirData::wxDirData(const wxString& dirname) | |
240 | : m_dirname(dirname) | |
241 | { | |
8f177c8e | 242 | m_finddata = InitFindData(); |
1944c6bd VZ |
243 | } |
244 | ||
245 | wxDirData::~wxDirData() | |
246 | { | |
247 | Close(); | |
248 | } | |
249 | ||
250 | void wxDirData::Close() | |
251 | { | |
8f177c8e | 252 | if ( IsFindDataOk(m_finddata) ) |
1944c6bd | 253 | { |
8f177c8e | 254 | FreeFindData(m_finddata); |
4afd7529 | 255 | |
8f177c8e | 256 | m_finddata = InitFindData(); |
1944c6bd VZ |
257 | } |
258 | } | |
259 | ||
260 | void wxDirData::Rewind() | |
261 | { | |
262 | Close(); | |
263 | } | |
264 | ||
265 | bool wxDirData::Read(wxString *filename) | |
266 | { | |
267 | bool first = FALSE; | |
268 | ||
8f177c8e | 269 | #ifdef __WIN32__ |
1944c6bd | 270 | WIN32_FIND_DATA finddata; |
8f177c8e VZ |
271 | #define PTR_TO_FINDDATA (&finddata) |
272 | #else // Win16 | |
273 | #define PTR_TO_FINDDATA (m_finddata) | |
274 | #endif | |
275 | ||
276 | if ( !IsFindDataOk(m_finddata) ) | |
1944c6bd VZ |
277 | { |
278 | // open first | |
ad0dc53b VZ |
279 | wxString filespec = m_dirname; |
280 | if ( !wxEndsWithPathSeparator(filespec) ) | |
281 | { | |
282 | filespec += _T('\\'); | |
283 | } | |
284 | filespec += (!m_filespec ? _T("*.*") : m_filespec.c_str()); | |
4afd7529 | 285 | |
8f177c8e | 286 | m_finddata = FindFirst(filespec, PTR_TO_FINDDATA); |
1944c6bd VZ |
287 | |
288 | first = TRUE; | |
289 | } | |
290 | ||
8f177c8e | 291 | if ( !IsFindDataOk(m_finddata) ) |
1944c6bd | 292 | { |
8f177c8e | 293 | #ifdef __WIN32__ |
1944c6bd VZ |
294 | DWORD err = ::GetLastError(); |
295 | ||
4afd7529 | 296 | if ( err != ERROR_FILE_NOT_FOUND ) |
1944c6bd VZ |
297 | { |
298 | wxLogSysError(err, _("Can not enumerate files in directory '%s'"), | |
299 | m_dirname.c_str()); | |
300 | } | |
8f177c8e | 301 | #endif // __WIN32__ |
1944c6bd VZ |
302 | //else: not an error, just no (such) files |
303 | ||
304 | return FALSE; | |
305 | } | |
306 | ||
1944c6bd | 307 | const wxChar *name; |
8f177c8e | 308 | FIND_ATTR attr; |
1944c6bd | 309 | |
4afd7529 | 310 | for ( ;; ) |
1944c6bd VZ |
311 | { |
312 | if ( first ) | |
313 | { | |
314 | first = FALSE; | |
315 | } | |
316 | else | |
317 | { | |
8f177c8e | 318 | if ( !FindNext(m_finddata, PTR_TO_FINDDATA) ) |
1944c6bd | 319 | { |
8f177c8e | 320 | #ifdef __WIN32__ |
1944c6bd VZ |
321 | DWORD err = ::GetLastError(); |
322 | ||
323 | if ( err != ERROR_NO_MORE_FILES ) | |
324 | { | |
325 | wxLogLastError(_T("FindNext")); | |
326 | } | |
8f177c8e | 327 | #endif // __WIN32__ |
1944c6bd VZ |
328 | //else: not an error, just no more (such) files |
329 | ||
330 | return FALSE; | |
331 | } | |
332 | } | |
333 | ||
8f177c8e VZ |
334 | name = GetNameFromFindData(PTR_TO_FINDDATA); |
335 | attr = GetAttrFromFindData(PTR_TO_FINDDATA); | |
1944c6bd VZ |
336 | |
337 | // don't return "." and ".." unless asked for | |
338 | if ( name[0] == _T('.') && | |
339 | ((name[1] == _T('.') && name[2] == _T('\0')) || | |
340 | (name[1] == _T('\0'))) ) | |
341 | { | |
342 | if ( !(m_flags & wxDIR_DOTDOT) ) | |
343 | continue; | |
344 | } | |
345 | ||
346 | // check the type now | |
8f177c8e | 347 | if ( !(m_flags & wxDIR_FILES) && !IsDir(attr) ) |
1944c6bd VZ |
348 | { |
349 | // it's a file, but we don't want them | |
350 | continue; | |
351 | } | |
8f177c8e | 352 | else if ( !(m_flags & wxDIR_DIRS) && IsDir(attr) ) |
1944c6bd VZ |
353 | { |
354 | // it's a dir, and we don't want it | |
355 | continue; | |
356 | } | |
357 | ||
358 | // finally, check whether it's a hidden file | |
359 | if ( !(m_flags & wxDIR_HIDDEN) ) | |
360 | { | |
8f177c8e | 361 | if ( IsHidden(attr) ) |
4afd7529 VZ |
362 | { |
363 | // it's a hidden file, skip it | |
364 | continue; | |
365 | } | |
1944c6bd | 366 | } |
1944c6bd | 367 | |
4afd7529 VZ |
368 | *filename = name; |
369 | ||
370 | break; | |
371 | } | |
1944c6bd VZ |
372 | |
373 | return TRUE; | |
374 | } | |
375 | ||
376 | // ---------------------------------------------------------------------------- | |
377 | // wxDir helpers | |
378 | // ---------------------------------------------------------------------------- | |
379 | ||
380 | /* static */ | |
381 | bool wxDir::Exists(const wxString& dir) | |
382 | { | |
383 | return wxPathExists(dir); | |
384 | } | |
385 | ||
386 | // ---------------------------------------------------------------------------- | |
387 | // wxDir construction/destruction | |
388 | // ---------------------------------------------------------------------------- | |
389 | ||
390 | wxDir::wxDir(const wxString& dirname) | |
391 | { | |
392 | m_data = NULL; | |
393 | ||
394 | (void)Open(dirname); | |
395 | } | |
396 | ||
397 | bool wxDir::Open(const wxString& dirname) | |
398 | { | |
399 | delete M_DIR; | |
400 | m_data = new wxDirData(dirname); | |
401 | ||
402 | return TRUE; | |
403 | } | |
404 | ||
405 | bool wxDir::IsOpened() const | |
406 | { | |
407 | return m_data != NULL; | |
408 | } | |
409 | ||
35332784 VZ |
410 | wxString wxDir::GetName() const |
411 | { | |
412 | wxString name; | |
413 | if ( m_data ) | |
414 | { | |
415 | name = M_DIR->GetName(); | |
416 | if ( !name.empty() ) | |
417 | { | |
418 | // bring to canonical Windows form | |
419 | name.Replace(_T("/"), _T("\\")); | |
420 | ||
421 | if ( name.Last() == _T('\\') ) | |
422 | { | |
423 | // chop off the last (back)slash | |
424 | name.Truncate(name.length() - 1); | |
425 | } | |
426 | } | |
427 | } | |
428 | ||
429 | return name; | |
430 | } | |
431 | ||
1944c6bd VZ |
432 | wxDir::~wxDir() |
433 | { | |
434 | delete M_DIR; | |
435 | } | |
436 | ||
437 | // ---------------------------------------------------------------------------- | |
438 | // wxDir enumerating | |
439 | // ---------------------------------------------------------------------------- | |
440 | ||
441 | bool wxDir::GetFirst(wxString *filename, | |
442 | const wxString& filespec, | |
443 | int flags) const | |
444 | { | |
445 | wxCHECK_MSG( IsOpened(), FALSE, _T("must wxDir::Open() first") ); | |
446 | ||
447 | M_DIR->Rewind(); | |
448 | ||
449 | M_DIR->SetFileSpec(filespec); | |
450 | M_DIR->SetFlags(flags); | |
451 | ||
452 | return GetNext(filename); | |
453 | } | |
454 | ||
455 | bool wxDir::GetNext(wxString *filename) const | |
456 | { | |
457 | wxCHECK_MSG( IsOpened(), FALSE, _T("must wxDir::Open() first") ); | |
458 | ||
459 | wxCHECK_MSG( filename, FALSE, _T("bad pointer in wxDir::GetNext()") ); | |
460 | ||
461 | return M_DIR->Read(filename); | |
462 | } | |
2b5f62a0 VZ |
463 | |
464 | // ---------------------------------------------------------------------------- | |
465 | // wxGetDirectoryTimes: used by wxFileName::GetTimes() | |
466 | // ---------------------------------------------------------------------------- | |
467 | ||
468 | #ifdef __WIN32__ | |
469 | ||
470 | extern bool | |
471 | wxGetDirectoryTimes(const wxString& dirname, | |
472 | FILETIME *ftAccess, FILETIME *ftCreate, FILETIME *ftMod) | |
473 | { | |
474 | // FindFirst() is going to fail | |
475 | wxASSERT_MSG( !dirname.empty() && dirname.Last() != _T('\\'), | |
476 | _T("incorrect directory name format in wxGetDirectoryTimes") ); | |
477 | ||
478 | FIND_STRUCT fs; | |
479 | FIND_DATA fd = FindFirst(dirname, &fs); | |
480 | if ( !IsFindDataOk(fd) ) | |
481 | { | |
482 | return FALSE; | |
483 | } | |
484 | ||
485 | *ftAccess = fs.ftLastAccessTime; | |
486 | *ftCreate = fs.ftCreationTime; | |
487 | *ftMod = fs.ftLastWriteTime; | |
488 | ||
489 | FindClose(fd); | |
490 | ||
491 | return TRUE; | |
492 | } | |
493 | ||
494 | #endif // __WIN32__ | |
495 |