| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: mgl/dir.cpp |
| 3 | // Purpose: wxDir implementation for MGL |
| 4 | // Author: Vaclav Slavik, Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 2001/12/09 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> |
| 9 | // (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com) |
| 10 | // Licence: wxWindows license |
| 11 | ///////////////////////////////////////////////////////////////////////////// |
| 12 | |
| 13 | // ============================================================================ |
| 14 | // declarations |
| 15 | // ============================================================================ |
| 16 | |
| 17 | // ---------------------------------------------------------------------------- |
| 18 | // headers |
| 19 | // ---------------------------------------------------------------------------- |
| 20 | |
| 21 | #ifdef __GNUG__ |
| 22 | #pragma implementation "dir.h" |
| 23 | #endif |
| 24 | |
| 25 | // For compilers that support precompilation, includes "wx.h". |
| 26 | #include "wx/wxprec.h" |
| 27 | |
| 28 | #ifdef __BORLANDC__ |
| 29 | #pragma hdrstop |
| 30 | #endif |
| 31 | |
| 32 | #include "wx/defs.h" |
| 33 | |
| 34 | #ifndef __UNIX__ |
| 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 wxMatchWild |
| 43 | #include "wx/mgl/private.h" |
| 44 | |
| 45 | // ---------------------------------------------------------------------------- |
| 46 | // macros |
| 47 | // ---------------------------------------------------------------------------- |
| 48 | |
| 49 | #define M_DIR ((wxDirData *)m_data) |
| 50 | |
| 51 | // ---------------------------------------------------------------------------- |
| 52 | // private classes |
| 53 | // ---------------------------------------------------------------------------- |
| 54 | |
| 55 | // this class stores everything we need to enumerate the files |
| 56 | class wxDirData |
| 57 | { |
| 58 | public: |
| 59 | wxDirData(const wxString& dirname); |
| 60 | ~wxDirData(); |
| 61 | |
| 62 | bool IsOk() const { return m_dir != NULL; } |
| 63 | |
| 64 | void SetFileSpec(const wxString& filespec); |
| 65 | void SetFlags(int flags) { m_flags = flags; } |
| 66 | |
| 67 | void Rewind(); |
| 68 | bool Read(wxString *filename); |
| 69 | |
| 70 | const wxString& GetName() const { return m_dirname; } |
| 71 | |
| 72 | private: |
| 73 | void *m_dir; |
| 74 | |
| 75 | wxString m_dirname; |
| 76 | wxString m_filespec; |
| 77 | |
| 78 | int m_flags; |
| 79 | }; |
| 80 | |
| 81 | // ============================================================================ |
| 82 | // implementation |
| 83 | // ============================================================================ |
| 84 | |
| 85 | // ---------------------------------------------------------------------------- |
| 86 | // wxDirData |
| 87 | // ---------------------------------------------------------------------------- |
| 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] == wxFILE_SEP_PATH ) {} |
| 99 | |
| 100 | m_dirname.Truncate(n + 1); |
| 101 | } |
| 102 | |
| 103 | wxDirData::~wxDirData() |
| 104 | { |
| 105 | if ( m_dir ) |
| 106 | PM_findClose(m_dir); |
| 107 | } |
| 108 | |
| 109 | void wxDirData::SetFileSpec(const wxString& filespec) |
| 110 | { |
| 111 | #ifdef __DOS__ |
| 112 | if ( filespec.IsEmpty() ) |
| 113 | m_filespec = _T("*.*"); |
| 114 | else |
| 115 | #endif |
| 116 | m_filespec = filespec; |
| 117 | } |
| 118 | |
| 119 | void wxDirData::Rewind() |
| 120 | { |
| 121 | if ( m_dir ) |
| 122 | { |
| 123 | PM_findClose(m_dir); |
| 124 | m_dir = NULL; |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | bool wxDirData::Read(wxString *filename) |
| 129 | { |
| 130 | PM_findData data; |
| 131 | bool matches = FALSE; |
| 132 | |
| 133 | data.dwSize = sizeof(data); |
| 134 | |
| 135 | wxString path = m_dirname; |
| 136 | path += wxFILE_SEP_PATH; |
| 137 | path.reserve(path.length() + 255); // speed up string concatenation |
| 138 | |
| 139 | while ( !matches ) |
| 140 | { |
| 141 | if ( m_dir ) |
| 142 | { |
| 143 | if ( !PM_findNextFile(m_dir, &data) ) |
| 144 | return FALSE; |
| 145 | } |
| 146 | else |
| 147 | { |
| 148 | m_dir = PM_findFirstFile(path + m_filespec , &data); |
| 149 | if ( m_dir == PM_FILE_INVALID ) |
| 150 | { |
| 151 | m_dir = NULL; |
| 152 | return FALSE; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | // don't return "." and ".." unless asked for |
| 157 | if ( data.name[0] == '.' && |
| 158 | ((data.name[1] == '.' && data.name[2] == '\0') || |
| 159 | (data.name[1] == '\0')) ) |
| 160 | { |
| 161 | if ( !(m_flags & wxDIR_DOTDOT) ) |
| 162 | continue; |
| 163 | |
| 164 | // we found a valid match |
| 165 | break; |
| 166 | } |
| 167 | |
| 168 | // check the type now |
| 169 | if ( !(m_flags & wxDIR_FILES) && !(data.attrib & PM_FILE_DIRECTORY) ) |
| 170 | { |
| 171 | // it's a file, but we don't want them |
| 172 | continue; |
| 173 | } |
| 174 | else if ( !(m_flags & wxDIR_DIRS) && (data.attrib & PM_FILE_DIRECTORY) ) |
| 175 | { |
| 176 | // it's a dir, and we don't want it |
| 177 | continue; |
| 178 | } |
| 179 | |
| 180 | matches = m_flags & wxDIR_HIDDEN ? TRUE : !(data.attrib & PM_FILE_HIDDEN); |
| 181 | } |
| 182 | |
| 183 | *filename = data.name; |
| 184 | |
| 185 | return TRUE; |
| 186 | } |
| 187 | |
| 188 | |
| 189 | // ---------------------------------------------------------------------------- |
| 190 | // wxDir helpers |
| 191 | // ---------------------------------------------------------------------------- |
| 192 | |
| 193 | /* static */ |
| 194 | bool wxDir::Exists(const wxString& dir) |
| 195 | { |
| 196 | return wxPathExists(dir); |
| 197 | } |
| 198 | |
| 199 | // ---------------------------------------------------------------------------- |
| 200 | // wxDir construction/destruction |
| 201 | // ---------------------------------------------------------------------------- |
| 202 | |
| 203 | wxDir::wxDir(const wxString& dirname) |
| 204 | { |
| 205 | m_data = NULL; |
| 206 | |
| 207 | (void)Open(dirname); |
| 208 | } |
| 209 | |
| 210 | bool wxDir::Open(const wxString& dirname) |
| 211 | { |
| 212 | delete M_DIR; |
| 213 | m_data = NULL; |
| 214 | |
| 215 | if ( !wxDir::Exists(dirname) ) |
| 216 | { |
| 217 | wxLogError(_("Directory '%s' doesn't exist!"), dirname.c_str()); |
| 218 | return FALSE; |
| 219 | } |
| 220 | |
| 221 | m_data = new wxDirData(dirname); |
| 222 | return TRUE; |
| 223 | } |
| 224 | |
| 225 | bool wxDir::IsOpened() const |
| 226 | { |
| 227 | return m_data != NULL; |
| 228 | } |
| 229 | |
| 230 | wxString wxDir::GetName() const |
| 231 | { |
| 232 | wxString name; |
| 233 | if ( m_data ) |
| 234 | { |
| 235 | name = M_DIR->GetName(); |
| 236 | if ( !name.empty() && (name.Last() == wxFILE_SEP_PATH) ) |
| 237 | { |
| 238 | // chop off the last (back)slash |
| 239 | name.Truncate(name.length() - 1); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | return name; |
| 244 | } |
| 245 | |
| 246 | wxDir::~wxDir() |
| 247 | { |
| 248 | delete M_DIR; |
| 249 | } |
| 250 | |
| 251 | // ---------------------------------------------------------------------------- |
| 252 | // wxDir enumerating |
| 253 | // ---------------------------------------------------------------------------- |
| 254 | |
| 255 | bool wxDir::GetFirst(wxString *filename, |
| 256 | const wxString& filespec, |
| 257 | int flags) const |
| 258 | { |
| 259 | wxCHECK_MSG( IsOpened(), FALSE, _T("must wxDir::Open() first") ); |
| 260 | |
| 261 | M_DIR->Rewind(); |
| 262 | |
| 263 | M_DIR->SetFileSpec(filespec); |
| 264 | M_DIR->SetFlags(flags); |
| 265 | |
| 266 | return GetNext(filename); |
| 267 | } |
| 268 | |
| 269 | bool wxDir::GetNext(wxString *filename) const |
| 270 | { |
| 271 | wxCHECK_MSG( IsOpened(), FALSE, _T("must wxDir::Open() first") ); |
| 272 | |
| 273 | wxCHECK_MSG( filename, FALSE, _T("bad pointer in wxDir::GetNext()") ); |
| 274 | |
| 275 | return M_DIR->Read(filename); |
| 276 | } |
| 277 | |
| 278 | #endif // !__UNIX__ |
| 279 | |