Not all implementations of wxMDIChildFrame derive from wxFrame

[wxWidgets.git] / include / wx / filefn.h

diff --git a/include/wx/filefn.h b/include/wx/filefn.h
index 69e95031d429652dc029440dc0786b0b2f6173cf..d1a8a27b65767d6c779a234134291666fcd86700 100644 (file)
--- a/include/wx/filefn.h
+++ b/include/wx/filefn.h
@@ -122,6 +122,14 @@ enum wxSeekMode
   wxFromEnd
 };
 
   wxFromEnd
 };
 

+enum wxFileKind
+{
+  wxFILE_KIND_UNKNOWN,
+  wxFILE_KIND_DISK,     // a file supporting seeking to arbitrary offsets
+  wxFILE_KIND_TERMINAL, // a tty
+  wxFILE_KIND_PIPE      // a pipe
+};
+

 // ----------------------------------------------------------------------------
 // declare our versions of low level file functions: some compilers prepend
 // underscores to the usual names, some also have Unicode versions of them
 // ----------------------------------------------------------------------------
 // declare our versions of low level file functions: some compilers prepend
 // underscores to the usual names, some also have Unicode versions of them


@@ -143,25 +151,10 @@ enum wxSeekMode
     #define wxLSeek wxSeek
     wxFileOffset wxTell(int fd);
 
     #define wxLSeek wxSeek
     wxFileOffset wxTell(int fd);
 

-    #if wxUSE_UNICODE
-        #if wxUSE_UNICODE_MSLU
-            #define   wxMkDir      wxMSLU__wmkdir
-            #define   wxRmDir      wxMSLU__wrmdir
-            #define   wxStat       wxMSLU__wstat
-        #else
-            #define   wxMkDir      _wmkdir
-            #define   wxRmDir      _wrmdir
-            #define   wxStat       _wstat
-        #endif
-    #else // !wxUSE_UNICODE
-        #define   wxMkDir      _mkdir
-        #ifdef __WATCOMC__
-            #define   wxRmDir      rmdir
-        #else
-            #define   wxRmDir      _rmdir
-        #endif
-        #define   wxStat       _stat
-    #endif
+    // always Unicode under WinCE
+    #define   wxMkDir      _wmkdir
+    #define   wxRmDir      _wrmdir
+    #define   wxStat       _wstat

     #define   wxStructStat struct _stat
 
 // Microsoft compiler loves underscores, feed them to it
     #define   wxStructStat struct _stat
 
 // Microsoft compiler loves underscores, feed them to it


@@ -173,17 +166,21 @@ enum wxSeekMode
 
     // detect compilers which have support for huge files (currently only
     // Digital Mars doesn't)
 
     // detect compilers which have support for huge files (currently only
     // Digital Mars doesn't)

+    #ifndef __WXPALMOS__

     #include "wx/msw/private.h"
     #include "wx/msw/private.h"

+    #endif

 
 

-    #undef __HUGEFILES_SUPPORTED
+    #undef wxHAS_HUGE_FILES

     #if defined(__MINGW32__)
     #if defined(__MINGW32__)

-        #define __HUGEFILES_SUPPORTED 1
+        #define wxHAS_HUGE_FILES 1
+    #elif defined(__MWERKS__)
+        #define wxHAS_HUGE_FILES 0

     #elif defined(__DMC__)
     #elif defined(__DMC__)

-        #define __HUGEFILES_SUPPORTED 0
+        #define wxHAS_HUGE_FILES 0

     #elif ((_INTEGRAL_MAX_BITS >= 64) || defined(_LARGE_FILES))
     #elif ((_INTEGRAL_MAX_BITS >= 64) || defined(_LARGE_FILES))

-        #define __HUGEFILES_SUPPORTED 1
+        #define wxHAS_HUGE_FILES 1

     #else
     #else

-        #define __HUGEFILES_SUPPORTED 0
+        #define wxHAS_HUGE_FILES 0

     #endif
 
     // functions
     #endif
 
     // functions


@@ -191,23 +188,24 @@ enum wxSeekMode
         #define   _tell        tell
     #endif
 
         #define   _tell        tell
     #endif
 

-    #if __HUGEFILES_SUPPORTED
+    #if wxHAS_HUGE_FILES

         typedef wxLongLong_t wxFileOffset;
         #define wxFileOffsetFmtSpec wxLongLongFmtSpec
     #else
         typedef off_t wxFileOffset;
         typedef wxLongLong_t wxFileOffset;
         #define wxFileOffsetFmtSpec wxLongLongFmtSpec
     #else
         typedef off_t wxFileOffset;

-        #define wxFileOffsetFmtSpec _("")

     #endif
 
     #define   wxClose      _close
 
     #if defined(__MWERKS__)
         #if __MSL__ >= 0x6000
     #endif
 
     #define   wxClose      _close
 
     #if defined(__MWERKS__)
         #if __MSL__ >= 0x6000

-            #define wxRead        _read(fd, (void *)buf, nCount)
-            #define wxWrite        _write(fd, (void *)buf, nCount)
+            #define wxRead(fd, buf, nCount)  _read(fd, (void *)buf, nCount)
+            #define wxWrite(fd, buf, nCount) _write(fd, (void *)buf, nCount)

         #else
         #else

-            #define wxRead        _read(fd, (const char *)buf, nCount)
-            #define wxWrite        _write(fd, (const char *)buf, nCount)
+            #define wxRead(fd, buf, nCount)\
+                  _read(fd, (const char *)buf, nCount)
+            #define wxWrite(fd, buf, nCount)\
+                  _write(fd, (const char *)buf, nCount)

         #endif
     #else
         #if defined(__DMC__) || defined(__WATCOMC__)
         #endif
     #else
         #if defined(__DMC__) || defined(__WATCOMC__)


@@ -218,7 +216,7 @@ enum wxSeekMode
             #define wxWrite        _write
         #endif
     #endif
             #define wxWrite        _write
         #endif
     #endif

-    #if __HUGEFILES_SUPPORTED
+    #if wxHAS_HUGE_FILES

         #define   wxSeek      _lseeki64
         #define   wxLseek      _lseeki64
         #define   wxTell       _telli64
         #define   wxSeek      _lseeki64
         #define   wxLseek      _lseeki64
         #define   wxTell       _telli64


@@ -241,7 +239,7 @@ enum wxSeekMode
             #define   wxAccess     wxMSLU__waccess
             #define   wxMkDir      wxMSLU__wmkdir
             #define   wxRmDir      wxMSLU__wrmdir
             #define   wxAccess     wxMSLU__waccess
             #define   wxMkDir      wxMSLU__wmkdir
             #define   wxRmDir      wxMSLU__wrmdir

-            #if __HUGEFILES_SUPPORTED
+            #if wxHAS_HUGE_FILES

                 #define   wxStat       wxMSLU__wstati64
             #else
                 #define   wxStat       wxMSLU__wstat
                 #define   wxStat       wxMSLU__wstati64
             #else
                 #define   wxStat       wxMSLU__wstat


@@ -251,7 +249,7 @@ enum wxSeekMode
             #define   wxAccess     _waccess
             #define   wxMkDir      _wmkdir
             #define   wxRmDir      _wrmdir
             #define   wxAccess     _waccess
             #define   wxMkDir      _wmkdir
             #define   wxRmDir      _wrmdir

-            #if __HUGEFILES_SUPPORTED
+            #if wxHAS_HUGE_FILES

                 #define   wxStat       _wstati64
             #else
                 #define   wxStat       _wstat
                 #define   wxStat       _wstati64
             #else
                 #define   wxStat       _wstat


@@ -270,7 +268,7 @@ enum wxSeekMode
         #else
             #define   wxRmDir      _rmdir
         #endif
         #else
             #define   wxRmDir      _rmdir
         #endif

-        #if __HUGEFILES_SUPPORTED
+        #if wxHAS_HUGE_FILES

             #define   wxStat       _stati64
         #else
             #define   wxStat       _stat
             #define   wxStat       _stati64
         #else
             #define   wxStat       _stat


@@ -279,7 +277,7 @@ enum wxSeekMode
 
     // types: notice that Watcom is the only compiler to have a wide char
     // version of struct stat as well as a wide char stat function variant
 
     // types: notice that Watcom is the only compiler to have a wide char
     // version of struct stat as well as a wide char stat function variant

-    #if __HUGEFILES_SUPPORTED
+    #if wxHAS_HUGE_FILES

         #if wxUSE_UNICODE && defined(__WATCOMC__)
             #define   wxStructStat struct _wstati64
         #else
         #if wxUSE_UNICODE && defined(__WATCOMC__)
             #define   wxStructStat struct _wstati64
         #else


@@ -294,27 +292,31 @@ enum wxSeekMode
     #endif
 
     // constants (unless already defined by the user code)
     #endif
 
     // constants (unless already defined by the user code)

-    #if !defined(O_RDONLY) && !defined(__BORLANDC__) && !defined(__WATCOMC__)
-        #define   O_RDONLY    _O_RDONLY
-        #define   O_WRONLY    _O_WRONLY
-        #define   O_RDWR      _O_RDWR
-        #define   O_EXCL      _O_EXCL
-        #define   O_CREAT     _O_CREAT
-        #define   O_BINARY    _O_BINARY
-    #endif
+    #if !defined(__BORLANDC__) && !defined(__WATCOMC__) && !defined(__WXPALMOS__)
+        #ifndef O_RDONLY
+            #define   O_RDONLY    _O_RDONLY
+            #define   O_WRONLY    _O_WRONLY
+            #define   O_RDWR      _O_RDWR
+            #define   O_EXCL      _O_EXCL
+            #define   O_CREAT     _O_CREAT
+            #define   O_BINARY    _O_BINARY
+        #endif

 
 

-    #if !defined(__BORLANDC__) && !defined(__WATCOMC__)
-        #define   S_IFMT      _S_IFMT
-        #define   S_IFDIR     _S_IFDIR
-        #define   S_IFREG     _S_IFREG
-    #endif // O_RDONLY
+        #ifndef S_IFMT
+            #define   S_IFMT      _S_IFMT
+            #define   S_IFDIR     _S_IFDIR
+            #define   S_IFREG     _S_IFREG
+        #endif
+    #endif

 
     // It's a private define, undefine it so nobody gets tempted to use it
 
     // It's a private define, undefine it so nobody gets tempted to use it

-    #undef __HUGEFILES_SUPPORTED
+    #undef wxHAS_HUGE_FILES

 #else // Unix platforms using configure
     typedef off_t wxFileOffset;
     #ifdef _LARGE_FILES
         #define wxFileOffsetFmtSpec wxLongLongFmtSpec
 #else // Unix platforms using configure
     typedef off_t wxFileOffset;
     #ifdef _LARGE_FILES
         #define wxFileOffsetFmtSpec wxLongLongFmtSpec

+        wxCOMPILE_TIME_ASSERT( sizeof(off_t) == sizeof(wxLongLong_t),
+                                BadFileSizeType );

     #else
         #define wxFileOffsetFmtSpec _T("")
     #endif
     #else
         #define wxFileOffsetFmtSpec _T("")
     #endif


@@ -354,9 +356,9 @@ enum wxSeekMode
 // VisualAge C++ V4.0 cannot have any external linkage const decs
 // in headers included by more than one primary source
 //
 // VisualAge C++ V4.0 cannot have any external linkage const decs
 // in headers included by more than one primary source
 //

-extern const wxFileOffset wxInvalidOffset;
+extern const int wxInvalidOffset;

 #else
 #else

-const wxFileOffset wxInvalidOffset = (wxFileOffset)-1;
+const int wxInvalidOffset = -1;

 #endif
 
 // ----------------------------------------------------------------------------
 #endif
 
 // ----------------------------------------------------------------------------


@@ -455,6 +457,10 @@ WXDLLIMPEXP_BASE bool wxMkdir(const wxString& dir, int perm = 0777);
 // Remove directory. Flags reserved for future use.
 WXDLLIMPEXP_BASE bool wxRmdir(const wxString& dir, int flags = 0);
 
 // Remove directory. Flags reserved for future use.
 WXDLLIMPEXP_BASE bool wxRmdir(const wxString& dir, int flags = 0);
 

+// Return the type of an open file
+WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(int fd);
+WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(FILE *fp);
+

 // compatibility defines, don't use in new code
 #define wxDirExists wxPathExists
 
 // compatibility defines, don't use in new code
 #define wxDirExists wxPathExists
 


@@ -545,6 +551,41 @@ WXDLLIMPEXP_BASE int wxParseCommonDialogsFilter(const wxString& wildCard, wxArra
 // classes
 // ----------------------------------------------------------------------------
 
 // classes
 // ----------------------------------------------------------------------------
 

+#ifdef __UNIX__
+
+// set umask to the given value in ctor and reset it to the old one in dtor
+class WXDLLIMPEXP_BASE wxUmaskChanger
+{
+public:
+    // change the umask to the given one if it is not -1: this allows to write
+    // the same code whether you really want to change umask or not, as is in
+    // wxFileConfig::Flush() for example
+    wxUmaskChanger(int umaskNew)
+    {
+        m_umaskOld = umaskNew == -1 ? -1 : (int)umask((mode_t)umaskNew);
+    }
+
+    ~wxUmaskChanger()
+    {
+        if ( m_umaskOld != -1 )
+            umask((mode_t)m_umaskOld);
+    }
+
+private:
+    int m_umaskOld;
+};
+
+// this macro expands to an "anonymous" wxUmaskChanger object under Unix and
+// nothing elsewhere
+#define wxCHANGE_UMASK(m) wxUmaskChanger wxMAKE_UNIQUE_NAME(umaskChanger_)(m)
+
+#else // !__UNIX__
+
+#define wxCHANGE_UMASK(m)
+
+#endif // __UNIX__/!__UNIX__
+
+

 // Path searching
 class WXDLLIMPEXP_BASE wxPathList : public wxStringList
 {
 // Path searching
 class WXDLLIMPEXP_BASE wxPathList : public wxStringList
 {