Mention wxGTK wxAnimation implementation limitations in the docs.

[wxWidgets.git] / src / common / wxcrt.cpp

diff --git a/src/common/wxcrt.cpp b/src/common/wxcrt.cpp
index 9c85e471c3f603a8ab271333dca0516c1e68f19d..dc51b48e41a7c00179e417ae63bf5bd8c9954dad 100644 (file)
--- a/src/common/wxcrt.cpp
+++ b/src/common/wxcrt.cpp
@@ -21,6 +21,7 @@
 #endif
 
 #include "wx/crt.h"
 #endif
 
 #include "wx/crt.h"

+#include "wx/strconv.h" // wxMBConv::cWC2MB()

 
 #define _ISOC9X_SOURCE 1 // to get vsscanf()
 #define _BSD_SOURCE    1 // to still get strdup()
 
 #define _ISOC9X_SOURCE 1 // to get vsscanf()
 #define _BSD_SOURCE    1 // to still get strdup()


@@ -28,13 +29,25 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

+#include <wchar.h>

 
 

+#ifdef __SGI__
+    // wide character functions are declared in std namespace under IRIX
+    using namespace std;
+
+    // and this one is only declared if __c99 is defined which is not the case
+    // for C++ builds, so declare it ourselves
+    extern "C" int vswscanf(const wchar_t *, const wchar_t *, va_list);
+#endif
+
+#ifndef __WXPALMOS5__

 #ifndef __WXWINCE__
     #include <time.h>
     #include <locale.h>
 #else
     #include "wx/msw/wince/time.h"
 #endif
 #ifndef __WXWINCE__
     #include <time.h>
     #include <locale.h>
 #else
     #include "wx/msw/wince/time.h"
 #endif

+#endif // !__WXPALMOS5__

 
 #ifndef WX_PRECOMP
     #include "wx/string.h"
 
 #ifndef WX_PRECOMP
     #include "wx/string.h"


@@ -43,6 +56,10 @@
     #include "wx/log.h"
 #endif
 
     #include "wx/log.h"
 #endif
 

+#ifdef HAVE_LANGINFO_H
+    #include <langinfo.h>
+#endif
+

 #ifdef __WXWINCE__
     // there is no errno.h under CE apparently
     #define wxSET_ERRNO(value)
 #ifdef __WXWINCE__
     // there is no errno.h under CE apparently
     #define wxSET_ERRNO(value)


@@ -57,7 +74,13 @@ namespace std {}
 using namespace std ;
 #endif
 
 using namespace std ;
 #endif
 

-#if wxUSE_WCHAR_T
+#if defined(__DARWIN__)
+    #include "wx/osx/core/cfref.h"
+    #include <CoreFoundation/CFLocale.h>
+    #include "wx/osx/core/cfstring.h"
+    #include <xlocale.h>
+#endif
+

 WXDLLIMPEXP_BASE size_t wxMB2WC(wchar_t *buf, const char *psz, size_t n)
 {
   // assume that we have mbsrtowcs() too if we have wcsrtombs()
 WXDLLIMPEXP_BASE size_t wxMB2WC(wchar_t *buf, const char *psz, size_t n)
 {
   // assume that we have mbsrtowcs() too if we have wcsrtombs()


@@ -85,9 +108,9 @@ WXDLLIMPEXP_BASE size_t wxMB2WC(wchar_t *buf, const char *psz, size_t n)
   // support it (the only currently known example being Metrowerks, see
   // wx/crt.h) we don't use its mbstowcs() at all
 #ifdef HAVE_WCSRTOMBS
   // support it (the only currently known example being Metrowerks, see
   // wx/crt.h) we don't use its mbstowcs() at all
 #ifdef HAVE_WCSRTOMBS

-  return mbsrtowcs((wchar_t *) NULL, &psz, 0, &mbstate);
+  return mbsrtowcs(NULL, &psz, 0, &mbstate);

 #else
 #else

-  return wxMbstowcs((wchar_t *) NULL, psz, 0);
+  return wxMbstowcs(NULL, psz, 0);

 #endif
 }
 
 #endif
 }
 


@@ -112,32 +135,10 @@ WXDLLIMPEXP_BASE size_t wxWC2MB(char *buf, const wchar_t *pwz, size_t n)
   }
 
 #ifdef HAVE_WCSRTOMBS
   }
 
 #ifdef HAVE_WCSRTOMBS

-  return wcsrtombs((char *) NULL, &pwz, 0, &mbstate);
+  return wcsrtombs(NULL, &pwz, 0, &mbstate);

 #else
 #else

-  return wxWcstombs((char *) NULL, pwz, 0);
-#endif
-}
-#endif // wxUSE_WCHAR_T
-
-WXDLLIMPEXP_BASE bool wxOKlibc()
-{
-#if wxUSE_WCHAR_T && defined(__UNIX__) && defined(__GLIBC__) && !defined(__WINE__)
-  // glibc 2.0 uses UTF-8 even when it shouldn't
-  wchar_t res = 0;
-  if ((MB_CUR_MAX == 2) &&
-      (wxMB2WC(&res, "\xdd\xa5", 1) == 1) &&
-      (res==0x765)) {
-    // this is UTF-8 allright, check whether that's what we want
-    char *cur_locale = setlocale(LC_CTYPE, NULL);
-    if ((strlen(cur_locale) < 4) ||
-            (strcasecmp(cur_locale + strlen(cur_locale) - 4, "utf8")) ||
-            (strcasecmp(cur_locale + strlen(cur_locale) - 5, "utf-8"))) {
-      // nope, don't use libc conversion
-      return false;
-    }
-  }
+  return wxWcstombs(NULL, pwz, 0);

 #endif
 #endif

-  return true;

 }
 
 char* wxSetlocale(int category, const char *locale)
 }
 
 char* wxSetlocale(int category, const char *locale)


@@ -149,7 +150,27 @@ char* wxSetlocale(int category, const char *locale)
 
     return NULL;
 #else // !__WXWINCE__
 
     return NULL;
 #else // !__WXWINCE__

+#ifdef __WXMAC__
+    char *rv = NULL ;
+    if ( locale != NULL && locale[0] == 0 )
+    {
+        // the attempt to use newlocale(LC_ALL_MASK, "", NULL);
+        // here in order to deduce the language along the environment vars rules
+        // lead to strange crashes later...
+
+        // we have to emulate the behaviour under OS X
+        wxCFRef<CFLocaleRef> userLocaleRef(CFLocaleCopyCurrent());
+        wxCFStringRef str(wxCFRetain((CFStringRef)CFLocaleGetValue(userLocaleRef, kCFLocaleLanguageCode)));
+        wxString langFull = str.AsString()+"_";
+        str.reset(wxCFRetain((CFStringRef)CFLocaleGetValue(userLocaleRef, kCFLocaleCountryCode)));
+        langFull += str.AsString();
+        rv = setlocale(category, langFull.c_str());
+    }
+    else
+        rv = setlocale(category, locale);
+#else

     char *rv = setlocale(category, locale);
     char *rv = setlocale(category, locale);

+#endif

     if ( locale != NULL /* setting locale, not querying */ &&
          rv /* call was successful */ )
     {
     if ( locale != NULL /* setting locale, not querying */ &&
          rv /* call was successful */ )
     {


@@ -242,29 +263,14 @@ int /* not wint_t */ wxCRT_FputcW(wchar_t wc, FILE *stream)
 // TODO: implement the scanf() functions
 static int vwscanf(const wchar_t *format, va_list argptr)
 {
 // TODO: implement the scanf() functions
 static int vwscanf(const wchar_t *format, va_list argptr)
 {

-    wxFAIL_MSG( _T("TODO") );
+    wxFAIL_MSG( wxT("TODO") );

 
     return -1;
 }
 
 
     return -1;
 }
 

-static int vswscanf(const wchar_t *ws, const wchar_t *format, va_list argptr)
-{
-    // The best we can do without proper Unicode support in glibc is to
-    // convert the strings into MB representation and run ANSI version
-    // of the function. This doesn't work with %c and %s because of difference
-    // in size of char and wchar_t, though.
-
-    wxCHECK_MSG( wxStrstr(format, _T("%s")) == NULL, -1,
-                 _T("incomplete vswscanf implementation doesn't allow %s") );
-    wxCHECK_MSG( wxStrstr(format, _T("%c")) == NULL, -1,
-                 _T("incomplete vswscanf implementation doesn't allow %c") );
-
-    return vsscanf(wxConvLibc.cWX2MB(ws), wxConvLibc.cWX2MB(format), argptr);
-}
-

 static int vfwscanf(FILE *stream, const wchar_t *format, va_list argptr)
 {
 static int vfwscanf(FILE *stream, const wchar_t *format, va_list argptr)
 {

-    wxFAIL_MSG( _T("TODO") );
+    wxFAIL_MSG( wxT("TODO") );

 
     return -1;
 }
 
     return -1;
 }


@@ -293,6 +299,24 @@ static int vwprintf(const wchar_t *format, va_list argptr)
 
 #endif // wxNEED_WPRINTF
 
 
 #endif // wxNEED_WPRINTF
 

+#ifdef wxNEED_VSWSCANF
+static int vswscanf(const wchar_t *ws, const wchar_t *format, va_list argptr)
+{
+    // The best we can do without proper Unicode support in glibc is to
+    // convert the strings into MB representation and run ANSI version
+    // of the function. This doesn't work with %c and %s because of difference
+    // in size of char and wchar_t, though.
+
+    wxCHECK_MSG( wxStrstr(format, wxT("%s")) == NULL, -1,
+                 wxT("incomplete vswscanf implementation doesn't allow %s") );
+    wxCHECK_MSG( wxStrstr(format, wxT("%c")) == NULL, -1,
+                 wxT("incomplete vswscanf implementation doesn't allow %c") );
+
+    return vsscanf(static_cast<const char*>(wxConvLibc.cWX2MB(ws)),
+        wxConvLibc.cWX2MB(format), argptr);
+}
+#endif
+

 // ----------------------------------------------------------------------------
 // wxPrintf(), wxScanf() and relatives
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxPrintf(), wxScanf() and relatives
 // ----------------------------------------------------------------------------


@@ -562,13 +586,20 @@ namespace
 #if !wxUSE_UTF8_LOCALE_ONLY
 int ConvertStringToBuf(const wxString& s, char *out, size_t outsize)
 {
 #if !wxUSE_UTF8_LOCALE_ONLY
 int ConvertStringToBuf(const wxString& s, char *out, size_t outsize)
 {

-    const wxWX2WCbuf buf = s.wc_str();
+    const wxCharBuffer buf(s.mb_str());

 
 

-    size_t len = wxConvLibc.FromWChar(out, outsize, buf);
-    if ( len != wxCONV_FAILED )
-        return len-1;
-    else
-        return wxConvLibc.FromWChar(NULL, 0, buf);
+    const size_t len = buf.length();
+    if ( outsize > len )
+    {
+        memcpy(out, buf, (len+1) * sizeof(char));
+    }
+    else // not enough space
+    {
+        memcpy(out, buf, (outsize-1) * sizeof(char));
+        out[outsize-1] = '\0';
+    }
+
+    return len;

 }
 #endif // !wxUSE_UTF8_LOCALE_ONLY
 
 }
 #endif // !wxUSE_UTF8_LOCALE_ONLY
 


@@ -625,7 +656,20 @@ int wxVsprintf(char *str, const wxString& format, va_list argptr)
 int wxVsprintf(wchar_t *str, const wxString& format, va_list argptr)
 {
 #if wxUSE_UNICODE_WCHAR
 int wxVsprintf(wchar_t *str, const wxString& format, va_list argptr)
 {
 #if wxUSE_UNICODE_WCHAR

+#ifdef __DMC__
+/*
+This fails with a bug similar to
+http://www.digitalmars.com/pnews/read.php?server=news.digitalmars.com&group=c++.beta&artnum=680
+in DMC 8.49 and 8.50
+I don't see it being used in the wxWidgets sources at present (oct 2007) CE
+*/
+#pragma message ( "warning ::::: wxVsprintf(wchar_t *str, const wxString& format, va_list argptr) not yet implemented" )
+    wxFAIL_MSG( wxT("TODO") );
+
+    return -1;
+#else

     return wxCRT_VsprintfW(str, format.wc_str(), argptr);
     return wxCRT_VsprintfW(str, format.wc_str(), argptr);

+#endif //DMC

 #else // wxUSE_UNICODE_UTF8
     #if !wxUSE_UTF8_LOCALE_ONLY
     if ( !wxLocaleIsUtf8 )
 #else // wxUSE_UNICODE_UTF8
     #if !wxUSE_UTF8_LOCALE_ONLY
     if ( !wxLocaleIsUtf8 )


@@ -696,7 +740,6 @@ int wxVsnprintf(wchar_t *str, size_t size, const wxString& format, va_list argpt
 }
 #endif // wxUSE_UNICODE
 
 }
 #endif // wxUSE_UNICODE
 

-#if wxUSE_WCHAR_T

 
 // ----------------------------------------------------------------------------
 // ctype.h stuff (currently unused)
 
 // ----------------------------------------------------------------------------
 // ctype.h stuff (currently unused)


@@ -767,6 +810,42 @@ WXDLLIMPEXP_BASE wchar_t * wxCRT_StrdupW(const wchar_t *pwz)
 }
 #endif // wxCRT_StrdupW
 
 }
 #endif // wxCRT_StrdupW
 

+#ifndef wxWCHAR_T_IS_WXCHAR16
+size_t wxStrlen(const wxChar16 *s )
+{
+    if (!s) return 0;
+    size_t i=0;
+    while (*s!=0) { ++i; ++s; };
+    return i;
+}
+
+wxChar16* wxStrdup(const wxChar16* s)
+{
+  size_t size = (wxStrlen(s) + 1) * sizeof(wxChar16);
+  wxChar16 *ret = (wxChar16*) malloc(size);
+  memcpy(ret, s, size);
+  return ret;
+}
+#endif
+
+#ifndef wxWCHAR_T_IS_WXCHAR32
+size_t wxStrlen(const wxChar32 *s )
+{
+    if (!s) return 0;
+    size_t i=0;
+    while (*s!=0) { ++i; ++s; };
+    return i;
+}
+
+wxChar32* wxStrdup(const wxChar32* s)
+{
+  size_t size = (wxStrlen(s) + 1) * sizeof(wxChar32);
+  wxChar32 *ret = (wxChar32*) malloc(size);
+  memcpy(ret, s, size);
+  return ret;
+}
+#endif
+

 #ifndef wxCRT_StricmpA
 WXDLLIMPEXP_BASE int wxCRT_StricmpA(const char *psz1, const char *psz2)
 {
 #ifndef wxCRT_StricmpA
 WXDLLIMPEXP_BASE int wxCRT_StricmpA(const char *psz1, const char *psz2)
 {


@@ -846,7 +925,7 @@ WXDLLIMPEXP_BASE wchar_t* wxCRT_GetenvW(const wchar_t *name)
     // NB: buffer returned by getenv() is allowed to be overwritten next
     //     time getenv() is called, so it is OK to use static string
     //     buffer to hold the data.
     // NB: buffer returned by getenv() is allowed to be overwritten next
     //     time getenv() is called, so it is OK to use static string
     //     buffer to hold the data.

-    static wxWCharBuffer value((wchar_t*)NULL);
+    static wxWCharBuffer value;

     value = wxConvLibc.cMB2WC(getenv(wxConvLibc.cWC2MB(name)));
     return value.data();
 }
     value = wxConvLibc.cMB2WC(getenv(wxConvLibc.cWC2MB(name)));
     return value.data();
 }


@@ -878,8 +957,6 @@ wxCRT_StrftimeW(wchar_t *s, size_t maxsize, const wchar_t *fmt, const struct tm
 }
 #endif // !wxCRT_StrftimeW
 
 }
 #endif // !wxCRT_StrftimeW
 

-#endif // wxUSE_WCHAR_T
-

 #ifdef wxLongLong_t
 template<typename T>
 static wxULongLong_t
 #ifdef wxLongLong_t
 template<typename T>
 static wxULongLong_t


@@ -992,12 +1069,9 @@ static wxLongLong_t wxCRT_DoStrtoll(const T* nptr, T** endptr, int base)
 
     if ( sign == wxT('-') )
     {
 
     if ( sign == wxT('-') )
     {

-        if ( uval <= wxULL(wxINT64_MAX+1) )
+        if (uval <= (wxULongLong_t)wxINT64_MAX + 1)

         {
         {

-            if ( uval == wxULL(wxINT64_MAX+1))
-                val = -((wxLongLong_t)wxINT64_MAX) - 1;
-            else
-                val = -((wxLongLong_t)uval);
+            val = -(wxLongLong_t)uval;

         }
         else
         {
         }
         else
         {


@@ -1037,7 +1111,7 @@ wxULongLong_t wxCRT_StrtoullW(const wchar_t* nptr, wchar_t** endptr, int base)
 #endif // wxLongLong_t
 
 // ----------------------------------------------------------------------------
 #endif // wxLongLong_t
 
 // ----------------------------------------------------------------------------

-// functions which we may need even if !wxUSE_WCHAR_T
+// strtok() functions

 // ----------------------------------------------------------------------------
 
 template<typename T>
 // ----------------------------------------------------------------------------
 
 template<typename T>


@@ -1053,15 +1127,15 @@ static T *wxCRT_DoStrtok(T *psz, const T *delim, T **save_ptr)
     psz += wxStrspn(psz, delim);
     if (!*psz)
     {
     psz += wxStrspn(psz, delim);
     if (!*psz)
     {

-        *save_ptr = (T *)NULL;
-        return (T *)NULL;
+        *save_ptr = NULL;
+        return NULL;

     }
 
     T *ret = psz;
     psz = wxStrpbrk(psz, delim);
     if (!psz)
     {
     }
 
     T *ret = psz;
     psz = wxStrpbrk(psz, delim);
     if (!psz)
     {

-        *save_ptr = (T*)NULL;
+        *save_ptr = NULL;

     }
     else
     {
     }
     else
     {


@@ -1139,7 +1213,7 @@ static bool wxIsLocaleUtf8()
             return true;
         }
     }
             return true;
         }
     }

-#endif
+#endif // HAVE_LANGINFO_H

 
     // check if we're running under the "C" locale: it is 7bit subset
     // of UTF-8, so it can be safely used with the UTF-8 build:
 
     // check if we're running under the "C" locale: it is 7bit subset
     // of UTF-8, so it can be safely used with the UTF-8 build:


@@ -1160,7 +1234,7 @@ void wxUpdateLocaleIsUtf8()
 #if wxUSE_UTF8_LOCALE_ONLY
     if ( !wxIsLocaleUtf8() )
     {
 #if wxUSE_UTF8_LOCALE_ONLY
     if ( !wxIsLocaleUtf8() )
     {

-        wxLogFatalError(_T("This program requires UTF-8 locale to run."));
+        wxLogFatalError(wxT("This program requires UTF-8 locale to run."));

     }
 #else // !wxUSE_UTF8_LOCALE_ONLY
     wxLocaleIsUtf8 = wxIsLocaleUtf8();
     }
 #else // !wxUSE_UTF8_LOCALE_ONLY
     wxLocaleIsUtf8 = wxIsLocaleUtf8();


@@ -1184,9 +1258,11 @@ void wxUpdateLocaleIsUtf8()
 
 int wxPuts(const wxString& s)
 {
 
 int wxPuts(const wxString& s)
 {

+    // under IRIX putws() takes a non-const argument so use wchar_str() instead
+    // of wc_str()

     CALL_ANSI_OR_UNICODE(return,
                          wxCRT_PutsA(s.mb_str()),
     CALL_ANSI_OR_UNICODE(return,
                          wxCRT_PutsA(s.mb_str()),

-                         wxCRT_PutsW(s.wc_str()));
+                         wxCRT_PutsW(s.wchar_str()));

 }
 
 int wxFputs(const wxString& s, FILE *stream)
 }
 
 int wxFputs(const wxString& s, FILE *stream)


@@ -1243,21 +1319,21 @@ wchar_t *wxFgets(wchar_t *s, int size, FILE *stream)
 // wxScanf() and friends
 // ----------------------------------------------------------------------------
 
 // wxScanf() and friends
 // ----------------------------------------------------------------------------
 

-#ifndef __VISUALC__
+#ifdef HAVE_VSSCANF // __VISUALC__ and __DMC__ see wx/crt.h

 int wxVsscanf(const char *str, const char *format, va_list ap)
     { return wxCRT_VsscanfA(str, format, ap); }
 int wxVsscanf(const wchar_t *str, const wchar_t *format, va_list ap)
     { return wxCRT_VsscanfW(str, format, ap); }
 int wxVsscanf(const wxCharBuffer& str, const char *format, va_list ap)
 int wxVsscanf(const char *str, const char *format, va_list ap)
     { return wxCRT_VsscanfA(str, format, ap); }
 int wxVsscanf(const wchar_t *str, const wchar_t *format, va_list ap)
     { return wxCRT_VsscanfW(str, format, ap); }
 int wxVsscanf(const wxCharBuffer& str, const char *format, va_list ap)

-    { return wxCRT_VsscanfA(str, format, ap); }
+    { return wxCRT_VsscanfA(static_cast<const char*>(str), format, ap); }

 int wxVsscanf(const wxWCharBuffer& str, const wchar_t *format, va_list ap)
     { return wxCRT_VsscanfW(str, format, ap); }
 int wxVsscanf(const wxString& str, const char *format, va_list ap)
 int wxVsscanf(const wxWCharBuffer& str, const wchar_t *format, va_list ap)
     { return wxCRT_VsscanfW(str, format, ap); }
 int wxVsscanf(const wxString& str, const char *format, va_list ap)

-    { return wxCRT_VsscanfA(str.mb_str(), format, ap); }
+    { return wxCRT_VsscanfA(static_cast<const char*>(str.mb_str()), format, ap); }

 int wxVsscanf(const wxString& str, const wchar_t *format, va_list ap)
     { return wxCRT_VsscanfW(str.wc_str(), format, ap); }
 int wxVsscanf(const wxCStrData& str, const char *format, va_list ap)
 int wxVsscanf(const wxString& str, const wchar_t *format, va_list ap)
     { return wxCRT_VsscanfW(str.wc_str(), format, ap); }
 int wxVsscanf(const wxCStrData& str, const char *format, va_list ap)

-    { return wxCRT_VsscanfA(str.AsCharBuf(), format, ap); }
+    { return wxCRT_VsscanfA(static_cast<const char*>(str.AsCharBuf()), format, ap); }

 int wxVsscanf(const wxCStrData& str, const wchar_t *format, va_list ap)
     { return wxCRT_VsscanfW(str.AsWCharBuf(), format, ap); }
 int wxVsscanf(const wxCStrData& str, const wchar_t *format, va_list ap)
     { return wxCRT_VsscanfW(str.AsWCharBuf(), format, ap); }

-#endif // !__VISUALC__
+#endif // HAVE_NO_VSSCANF