X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f3660dcb2f3b7fe836bebaee720332b4ea50a35b..9151dcec4f51cf7e9c160ede683cc63392459fea:/src/common/filefn.cpp

diff --git a/src/common/filefn.cpp b/src/common/filefn.cpp
index c33c44c174..55aa0e7ce8 100644
--- a/src/common/filefn.cpp
+++ b/src/common/filefn.cpp
@@ -62,7 +62,7 @@
 #endif
 
 #ifdef __WINDOWS__
-    #include "wx/msw/wrapwin.h"
+    #include "wx/msw/private.h"
     #include "wx/msw/mslu.h"
 
     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
@@ -73,8 +73,18 @@
             #include <sys/cygwin.h>
         #endif
     #endif // __GNUWIN32__
+
+    // io.h is needed for _get_osfhandle()
+    // Already included by filefn.h for many Windows compilers
+    #if defined __MWERKS__ || defined __CYGWIN__
+        #include <io.h>
+    #endif
 #endif // __WINDOWS__
 
+#if defined(__VMS__)
+    #include <fab.h>
+#endif
+
 // TODO: Borland probably has _wgetcwd as well?
 #ifdef _MSC_VER
     #define HAVE_WGETCWD
@@ -204,7 +214,9 @@ void wxPathList::AddEnvList (const wxString& envVariable)
 
         delete [] s;
     }
-#endif
+#else // __WXWINCE__
+    wxUnusedVar(envVariable);
+#endif // !__WXWINCE__/__WXWINCE__
 }
 
 // Given a full filename (with path), ensure that that file can
@@ -213,7 +225,7 @@ void wxPathList::AddEnvList (const wxString& envVariable)
 void wxPathList::EnsureFileAccessible (const wxString& path)
 {
     wxString path_only(wxPathOnly(path));
-    if ( !path_only.IsEmpty() )
+    if ( !path_only.empty() )
     {
         if ( !Member(path_only) )
             Add(path_only);
@@ -226,7 +238,7 @@ bool wxPathList::Member (const wxString& path)
   {
       wxString path2( node->GetData() );
       if (
-#if defined(__WINDOWS__) || defined(__OS2__) || defined(__VMS__) || defined (__WXMAC__)
+#if defined(__WINDOWS__) || defined(__OS2__) || defined(__VMS__) || defined(__WXMAC__)
       // Case INDEPENDENT
           path.CompareTo (path2, wxString::ignoreCase) == 0
 #else
@@ -290,9 +302,11 @@ wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 bool
 wxFileExists (const wxString& filename)
 {
+#if defined(__WXPALMOS__)
+    return false;
+#elif defined(__WIN32__) && !defined(__WXMICROWIN__)
     // we must use GetFileAttributes() instead of the ANSI C functions because
     // it can cope with network (UNC) paths unlike them
-#if defined(__WIN32__) && !defined(__WXMICROWIN__)
     DWORD ret = ::GetFileAttributes(filename);
 
     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
@@ -309,7 +323,7 @@ wxFileExists (const wxString& filename)
 bool
 wxIsAbsolutePath (const wxString& filename)
 {
-    if (filename != wxT(""))
+    if (!filename.empty())
     {
 #if defined(__WXMAC__) && !defined(__DARWIN__)
         // Classic or Carbon CodeWarrior like
@@ -361,17 +375,16 @@ void wxStripExtension(wxChar *buffer)
 
 void wxStripExtension(wxString& buffer)
 {
-  size_t len = buffer.Length();
-  size_t i = len-1;
-  while (i > 0)
-  {
-    if (buffer.GetChar(i) == wxT('.'))
+    //RN:  Be careful about the handling the case where
+    //buffer.Length() == 0
+    for(size_t i = buffer.Length() - 1; i != wxString::npos; --i)
     {
-      buffer = buffer.Left(i);
-      break;
+        if (buffer.GetChar(i) == wxT('.'))
+        {
+          buffer = buffer.Left(i);
+          break;
+        }
     }
-    i --;
-  }
 }
 
 // Destructive removal of /./ and /../ stuff
@@ -433,7 +446,7 @@ wxChar *wxRealPath (wxChar *path)
 // Must be destroyed
 wxChar *wxCopyAbsolutePath(const wxString& filename)
 {
-  if (filename == wxT(""))
+  if (filename.empty())
     return (wxChar *) NULL;
 
   if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
@@ -589,7 +602,7 @@ wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
         if (nm[1] == SEP || nm[1] == 0)
         {        /* ~/filename */
         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
-            if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
+            if ((s = WXSTRINGCAST wxGetUserHome(wxEmptyString)) != NULL) {
                 if (*++nm)
                     nm++;
             }
@@ -648,7 +661,7 @@ wxContractPath (const wxString& filename, const wxString& envname, const wxStrin
 {
   static wxChar dest[_MAXPATHLEN];
 
-  if (filename == wxT(""))
+  if (filename.empty())
     return (wxChar *) NULL;
 
   wxStrcpy (dest, WXSTRINGCAST filename);
@@ -660,7 +673,7 @@ wxContractPath (const wxString& filename, const wxString& envname, const wxStrin
   const wxChar *val;
 #ifndef __WXWINCE__
   wxChar *tcp;
-  if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
+  if (!envname.empty() && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
      (tcp = wxStrstr (dest, val)) != NULL)
     {
         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
@@ -670,6 +683,8 @@ wxContractPath (const wxString& filename, const wxString& envname, const wxStrin
         wxStrcat (tcp, wxT("}"));
         wxStrcat (tcp, wxFileFunctionsBuffer);
     }
+#else
+  wxUnusedVar(envname);
 #endif
 
   // Handle User's home (ignore root homes!)
@@ -684,7 +699,7 @@ wxContractPath (const wxString& filename, const wxString& envname, const wxStrin
   if (wxStrncmp(dest, val, len) == 0)
   {
     wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
-    if (user != wxT(""))
+    if (!user.empty())
            wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
     wxStrcat(wxFileFunctionsBuffer, dest + len);
     wxStrcpy (dest, wxFileFunctionsBuffer);
@@ -776,7 +791,7 @@ wxPathOnly (wxChar *path)
 // Return just the directory, or NULL if no directory
 wxString wxPathOnly (const wxString& path)
 {
-    if (path != wxT(""))
+    if (!path.empty())
     {
         wxChar buf[_MAXPATHLEN];
 
@@ -829,7 +844,7 @@ wxString wxPathOnly (const wxString& path)
         }
 #endif
     }
-    return wxString(wxT(""));
+    return wxEmptyString;
 }
 
 // Utility for converting delimiters in DOS filenames to UNIX style
@@ -998,6 +1013,9 @@ wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
 #elif defined(__OS2__)
     if ( ::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) != 0 )
         return false;
+#elif defined(__PALMOS__)
+    // TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
+    return false;
 #else // !Win32
 
     wxStructStat fbuf;
@@ -1077,7 +1095,7 @@ wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
 bool
 wxRenameFile (const wxString& file1, const wxString& file2)
 {
-#ifndef __WXWINCE__
+#if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
     // Normal system call
   if ( wxRename (file1, file2) == 0 )
     return true;
@@ -1100,20 +1118,25 @@ bool wxRemoveFile(const wxString& file)
  || defined(__DMC__) \
  || defined(__GNUWIN32__) \
  || (defined(__MWERKS__) && defined(__MSL__))
-  int res = wxRemove(file);
+    int res = wxRemove(file);
 #elif defined(__WXMAC__)
-  int res = unlink(wxFNCONV(file));
+    int res = unlink(wxFNCONV(file));
+#elif defined(__WXPALMOS__)
+    int res = 1;
+    // TODO with VFSFileDelete()
 #else
-  int res = unlink(OS_FILENAME(file));
+    int res = unlink(OS_FILENAME(file));
 #endif
 
-  return res == 0;
+    return res == 0;
 }
 
 bool wxMkdir(const wxString& dir, int perm)
 {
-#if defined(__WXMAC__) && !defined(__UNIX__)
-  return (mkdir( wxFNCONV(dir) , 0 ) == 0);
+#if defined(__WXPALMOS__)
+    return false;
+#elif defined(__WXMAC__) && !defined(__UNIX__)
+    return (mkdir( wxFNCONV(dir) , 0 ) == 0);
 #else // !Mac
     const wxChar *dirname = dir.c_str();
 
@@ -1138,11 +1161,11 @@ bool wxMkdir(const wxString& dir, int perm)
     #error "Unsupported DOS compiler!"
   #endif
 #else  // !MSW, !DOS and !OS/2 VAC++
-    (void)perm;
+    wxUnusedVar(perm);
 #ifdef __WXWINCE__
     if ( !CreateDirectory(dirname, NULL) )
 #else
-    if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
+    if ( wxMkDir(dir.fn_str()) != 0 )
 #endif
 #endif // !MSW/MSW
     {
@@ -1157,19 +1180,18 @@ bool wxMkdir(const wxString& dir, int perm)
 
 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
 {
-#ifdef __VMS__
+#if defined(__VMS__)
     return false; //to be changed since rmdir exists in VMS7.x
 #elif defined(__OS2__)
     return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
-#else
-
-#ifdef __WXWINCE__
+#elif defined(__WXWINCE__)
     return (CreateDirectory(dir, NULL) != 0);
+#elif defined(__WXPALMOS__)
+    // TODO with VFSFileRename()
+    return false;
 #else
     return (wxRmDir(OS_FILENAME(dir)) == 0);
 #endif
-
-#endif
 }
 
 // does the path exists? (may have or not '/' or '\\' at the end)
@@ -1197,11 +1219,15 @@ bool wxPathExists(const wxChar *pszPathName)
         strPath << _T('.');
 #endif
 
-#if defined(__WIN32__) && !defined(__WXMICROWIN__)
+#if defined(__WXPALMOS__)
+    return false;
+#elif defined(__WIN32__) && !defined(__WXMICROWIN__)
     // stat() can't cope with network paths
     DWORD ret = ::GetFileAttributes(strPath);
 
     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
+#elif defined(__OS2__)
+    return (::DosSetCurrentDir(WXSTRINGCAST strPath));
 #else // !__WIN32__
 
     wxStructStat st;
@@ -1218,6 +1244,7 @@ bool wxPathExists(const wxChar *pszPathName)
 // Get a temporary filename, opening and closing the file.
 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
 {
+#if wxUSE_FILE
     wxString filename = wxFileName::CreateTempFileName(prefix);
     if ( filename.empty() )
         return NULL;
@@ -1228,11 +1255,15 @@ wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
         buf = MYcopystring(filename);
 
     return buf;
+#else
+    // wxFileName::CreateTempFileName needs wxFile class enabled
+    return NULL;
+#endif
 }
 
 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
 {
-    buf = wxFileName::CreateTempFileName(prefix);
+    buf = wxGetTempFileName(prefix);
 
     return !buf.empty();
 }
@@ -1245,7 +1276,7 @@ static wxString gs_dirPath;
 wxString wxFindFirstFile(const wxChar *spec, int flags)
 {
     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
-    if ( gs_dirPath.IsEmpty() )
+    if ( gs_dirPath.empty() )
         gs_dirPath = wxT(".");
     if ( !wxEndsWithPathSeparator(gs_dirPath ) )
         gs_dirPath << wxFILE_SEP_PATH;
@@ -1270,7 +1301,7 @@ wxString wxFindFirstFile(const wxChar *spec, int flags)
 
     wxString result;
     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
-    if ( result.IsEmpty() )
+    if ( result.empty() )
     {
         wxDELETE(gs_dir);
         return result;
@@ -1286,7 +1317,7 @@ wxString wxFindNextFile()
     wxString result;
     gs_dir->GetNext(&result);
 
-    if ( result.IsEmpty() )
+    if ( result.empty() )
     {
         wxDELETE(gs_dir);
         return result;
@@ -1301,7 +1332,13 @@ wxString wxFindNextFile()
 // copies into buf.
 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
 {
-#ifdef __WXWINCE__
+#if defined(__WXPALMOS__)
+    // TODO ?
+    return NULL;
+#elif defined(__WXWINCE__)
+    // TODO
+    wxUnusedVar(buf);
+    wxUnusedVar(sz);
     return NULL;
 #else
     if ( !buf )
@@ -1443,6 +1480,7 @@ bool wxSetWorkingDirectory(const wxString& d)
 #ifdef __WIN32__
 #ifdef __WXWINCE__
     // No equivalent in WinCE
+    wxUnusedVar(d);
     return false;
 #else
     return (bool)(SetCurrentDirectory(d) != 0);
@@ -1553,7 +1591,9 @@ void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
 
 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
 {
-#ifdef __WXWINCE__
+#if defined(__WXPALMOS__)
+    return 0;
+#elif defined(__WXWINCE__)
     FILETIME creationTime, lastAccessTime, lastWriteTime;
     HANDLE fileHandle = ::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL,
         0, FILE_ATTRIBUTE_NORMAL, 0);
@@ -1694,7 +1734,7 @@ int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr, wxArrayStr
     // autocompletion
     for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
     {
-        if ( descriptions[j] == wxEmptyString && filters[j] != wxEmptyString )
+        if ( descriptions[j].empty() && !filters[j].empty() )
         {
             descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
         }
@@ -1853,6 +1893,75 @@ bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
         }
 }
 
+// Return the type of an open file
+//
+// Some file types on some platforms seem seekable but in fact are not.
+// The main use of this function is to allow such cases to be detected
+// (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK).
+//
+// This is important for the archive streams, which benefit greatly from
+// being able to seek on a stream, but which will produce corrupt archives
+// if they unknowingly seek on a non-seekable stream.
+//
+// wxFILE_KIND_DISK is a good catch all return value, since other values
+// disable features of the archive streams. Some other value must be returned
+// for a file type that appears seekable but isn't.
+//
+// Known examples:
+//   *  Pipes on Windows
+//   *  Files on VMS with a record format other than StreamLF
+//
+wxFileKind wxGetFileKind(int fd)
+{
+#if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle
+    switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE)
+    {
+        case FILE_TYPE_CHAR:
+            return wxFILE_KIND_TERMINAL;
+        case FILE_TYPE_DISK:
+            return wxFILE_KIND_DISK;
+        case FILE_TYPE_PIPE:
+            return wxFILE_KIND_PIPE;
+    }
+
+    return wxFILE_KIND_UNKNOWN;
+
+#elif defined(__UNIX__)
+    if (isatty(fd))
+        return wxFILE_KIND_TERMINAL;
+
+    struct stat st;
+    fstat(fd, &st);
+
+    if (S_ISFIFO(st.st_mode))
+        return wxFILE_KIND_PIPE;
+    if (!S_ISREG(st.st_mode))
+        return wxFILE_KIND_UNKNOWN;
+
+    #if defined(__VMS__)
+        if (st.st_fab_rfm != FAB$C_STMLF)
+            return wxFILE_KIND_UNKNOWN;
+    #endif
+
+    return wxFILE_KIND_DISK;
+
+#else
+    #define wxFILEKIND_STUB
+    (void)fd;
+    return wxFILE_KIND_DISK;
+#endif
+}
+
+wxFileKind wxGetFileKind(FILE *fp)
+{
+    // note: the watcom rtl dll doesn't have fileno (the static lib does)
+#if !defined wxFILEKIND_STUB && !(defined __WATCOMC__ && defined __SW_BR)
+    return wxGetFileKind(fileno(fp));
+#else
+    (void)fp;
+    return wxFILE_KIND_DISK;
+#endif
+}
 
 #ifdef __VISUALC__
     #pragma warning(default:4706)   // assignment within conditional expression