| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: unix/dir.cpp |
| 3 | // Purpose: wxDir implementation for Unix/POSIX systems |
| 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 | #ifndef WX_PRECOMP |
| 32 | #include "wx/intl.h" |
| 33 | #include "wx/log.h" |
| 34 | #endif // PCH |
| 35 | |
| 36 | #include "wx/dir.h" |
| 37 | #include "wx/filefn.h" // for wxMatchWild |
| 38 | |
| 39 | #include <sys/types.h> |
| 40 | |
| 41 | #include <dirent.h> |
| 42 | |
| 43 | // ---------------------------------------------------------------------------- |
| 44 | // macros |
| 45 | // ---------------------------------------------------------------------------- |
| 46 | |
| 47 | #define M_DIR ((wxDirData *)m_data) |
| 48 | |
| 49 | // ---------------------------------------------------------------------------- |
| 50 | // private classes |
| 51 | // ---------------------------------------------------------------------------- |
| 52 | |
| 53 | // this class stores everything we need to enumerate the files |
| 54 | class wxDirData |
| 55 | { |
| 56 | public: |
| 57 | wxDirData(const wxString& dirname); |
| 58 | ~wxDirData(); |
| 59 | |
| 60 | bool IsOk() const { return m_dir != NULL; } |
| 61 | |
| 62 | void SetFileSpec(const wxString& filespec) { m_filespec = filespec; } |
| 63 | void SetFlags(int flags) { m_flags = flags; } |
| 64 | |
| 65 | void Rewind() { rewinddir(m_dir); } |
| 66 | bool Read(wxString *filename); |
| 67 | |
| 68 | const wxString& GetName() const { return m_dirname; } |
| 69 | |
| 70 | private: |
| 71 | DIR *m_dir; |
| 72 | |
| 73 | wxString m_dirname; |
| 74 | wxString m_filespec; |
| 75 | |
| 76 | int m_flags; |
| 77 | }; |
| 78 | |
| 79 | // ============================================================================ |
| 80 | // implementation |
| 81 | // ============================================================================ |
| 82 | |
| 83 | // ---------------------------------------------------------------------------- |
| 84 | // wxDirData |
| 85 | // ---------------------------------------------------------------------------- |
| 86 | |
| 87 | #if !defined( __VMS__ ) || ( __VMS_VER >= 70000000 ) |
| 88 | |
| 89 | wxDirData::wxDirData(const wxString& dirname) |
| 90 | : m_dirname(dirname) |
| 91 | { |
| 92 | m_dir = NULL; |
| 93 | |
| 94 | // throw away the trailing slashes |
| 95 | size_t n = m_dirname.length(); |
| 96 | wxCHECK_RET( n, _T("empty dir name in wxDir") ); |
| 97 | |
| 98 | while ( n > 0 && m_dirname[--n] == '/' ) |
| 99 | ; |
| 100 | |
| 101 | m_dirname.Truncate(n + 1); |
| 102 | |
| 103 | // do open the dir |
| 104 | m_dir = opendir(m_dirname.fn_str()); |
| 105 | } |
| 106 | |
| 107 | wxDirData::~wxDirData() |
| 108 | { |
| 109 | if ( m_dir ) |
| 110 | { |
| 111 | if ( closedir(m_dir) != 0 ) |
| 112 | { |
| 113 | wxLogLastError(_T("closedir")); |
| 114 | } |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | bool wxDirData::Read(wxString *filename) |
| 119 | { |
| 120 | dirent *de = (dirent *)NULL; // just to silent compiler warnings |
| 121 | bool matches = FALSE; |
| 122 | |
| 123 | while ( !matches ) |
| 124 | { |
| 125 | de = readdir(m_dir); |
| 126 | if ( !de ) |
| 127 | return FALSE; |
| 128 | |
| 129 | // don't return "." and ".." unless asked for |
| 130 | if ( de->d_name[0] == '.' && |
| 131 | ((de->d_name[1] == '.' && de->d_name[2] == '\0') || |
| 132 | (de->d_name[1] == '\0')) ) |
| 133 | { |
| 134 | if ( !(m_flags & wxDIR_DOTDOT) ) |
| 135 | continue; |
| 136 | } |
| 137 | |
| 138 | // check the type now |
| 139 | if ( !(m_flags & wxDIR_FILES) && |
| 140 | !wxDir::Exists(m_dirname + _T('/') + de->d_name) ) |
| 141 | { |
| 142 | // it's a file, but we don't want them |
| 143 | continue; |
| 144 | } |
| 145 | else if ( !(m_flags & wxDIR_DIRS) && |
| 146 | wxDir::Exists(m_dirname + _T('/') + de->d_name) ) |
| 147 | { |
| 148 | // it's a dir, and we don't want it |
| 149 | continue; |
| 150 | } |
| 151 | |
| 152 | // finally, check the name |
| 153 | if ( !m_filespec ) |
| 154 | { |
| 155 | matches = m_flags & wxDIR_HIDDEN ? TRUE : de->d_name[0] != '.'; |
| 156 | } |
| 157 | else |
| 158 | { |
| 159 | // test against the pattern |
| 160 | matches = wxMatchWild(m_filespec, de->d_name, |
| 161 | !(m_flags & wxDIR_HIDDEN)); |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | *filename = de->d_name; |
| 166 | |
| 167 | return TRUE; |
| 168 | } |
| 169 | |
| 170 | #else // old VMS (TODO) |
| 171 | |
| 172 | wxDirData::wxDirData(const wxString& WXUNUSED(dirname)) |
| 173 | { |
| 174 | wxFAIL_MSG(_T("not implemented")); |
| 175 | } |
| 176 | |
| 177 | wxDirData::~wxDirData() |
| 178 | { |
| 179 | } |
| 180 | |
| 181 | bool wxDirData::Read(wxString * WXUNUSED(filename)) |
| 182 | { |
| 183 | return FALSE; |
| 184 | } |
| 185 | |
| 186 | #endif // not or new VMS/old VMS |
| 187 | |
| 188 | // ---------------------------------------------------------------------------- |
| 189 | // wxDir helpers |
| 190 | // ---------------------------------------------------------------------------- |
| 191 | |
| 192 | /* static */ |
| 193 | bool wxDir::Exists(const wxString& dir) |
| 194 | { |
| 195 | return wxPathExists(dir); |
| 196 | } |
| 197 | |
| 198 | // ---------------------------------------------------------------------------- |
| 199 | // wxDir construction/destruction |
| 200 | // ---------------------------------------------------------------------------- |
| 201 | |
| 202 | wxDir::wxDir(const wxString& dirname) |
| 203 | { |
| 204 | m_data = NULL; |
| 205 | |
| 206 | (void)Open(dirname); |
| 207 | } |
| 208 | |
| 209 | bool wxDir::Open(const wxString& dirname) |
| 210 | { |
| 211 | delete M_DIR; |
| 212 | m_data = new wxDirData(dirname); |
| 213 | |
| 214 | if ( !M_DIR->IsOk() ) |
| 215 | { |
| 216 | wxLogSysError(_("Can not enumerate files in directory '%s'"), |
| 217 | dirname.c_str()); |
| 218 | |
| 219 | delete M_DIR; |
| 220 | m_data = NULL; |
| 221 | |
| 222 | return FALSE; |
| 223 | } |
| 224 | |
| 225 | return TRUE; |
| 226 | } |
| 227 | |
| 228 | bool wxDir::IsOpened() const |
| 229 | { |
| 230 | return m_data != NULL; |
| 231 | } |
| 232 | |
| 233 | wxString wxDir::GetName() const |
| 234 | { |
| 235 | wxString name; |
| 236 | if ( m_data ) |
| 237 | { |
| 238 | name = M_DIR->GetName(); |
| 239 | if ( !name.empty() && (name.Last() == _T('/')) ) |
| 240 | { |
| 241 | // chop off the last (back)slash |
| 242 | name.Truncate(name.length() - 1); |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | return name; |
| 247 | } |
| 248 | |
| 249 | wxDir::~wxDir() |
| 250 | { |
| 251 | delete M_DIR; |
| 252 | } |
| 253 | |
| 254 | // ---------------------------------------------------------------------------- |
| 255 | // wxDir enumerating |
| 256 | // ---------------------------------------------------------------------------- |
| 257 | |
| 258 | bool wxDir::GetFirst(wxString *filename, |
| 259 | const wxString& filespec, |
| 260 | int flags) const |
| 261 | { |
| 262 | wxCHECK_MSG( IsOpened(), FALSE, _T("must wxDir::Open() first") ); |
| 263 | |
| 264 | M_DIR->Rewind(); |
| 265 | |
| 266 | M_DIR->SetFileSpec(filespec); |
| 267 | M_DIR->SetFlags(flags); |
| 268 | |
| 269 | return GetNext(filename); |
| 270 | } |
| 271 | |
| 272 | bool wxDir::GetNext(wxString *filename) const |
| 273 | { |
| 274 | wxCHECK_MSG( IsOpened(), FALSE, _T("must wxDir::Open() first") ); |
| 275 | |
| 276 | wxCHECK_MSG( filename, FALSE, _T("bad pointer in wxDir::GetNext()") ); |
| 277 | |
| 278 | return M_DIR->Read(filename); |
| 279 | } |