+ while (*(wxUint16*)psz && (!buf || len < n))
+ {
+ wxUint32 cc;
+ char tmp[4];
+ tmp[0]=psz[1]; tmp[1]=psz[0];
+ tmp[2]=psz[3]; tmp[3]=psz[2];
+
+ size_t pa=decode_utf16((wxUint16*)tmp, cc);
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ *buf++ = cc;
+
+ len++;
+ psz += pa * sizeof(wxUint16);
+ }
+ if (buf && len<n) *buf=0;
+
+ return len;
+}
+
+
+// swap 32bit String to 16bit MB
+size_t wxMBConvUTF16swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*psz && (!buf || len < n))
+ {
+ wxUint16 cc[2];
+ size_t pa=encode_utf16(*psz, cc);
+
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ {
+ *buf++ = ((char*)cc)[1];
+ *buf++ = ((char*)cc)[0];
+ if (pa > 1)
+ {
+ *buf++ = ((char*)cc)[3];
+ *buf++ = ((char*)cc)[2];
+ }
+ }
+
+ len += pa*sizeof(wxUint16);
+ psz++;
+ }
+ if (buf && len<=n-sizeof(wxUint16)) *(wxUint16*)buf=0;
+
+ return len;
+}
+
+#endif // WC_UTF16
+
+
+// ----------------------------------------------------------------------------
+// UTF-32
+// ----------------------------------------------------------------------------
+
+#ifdef WORDS_BIGENDIAN
+#define wxMBConvUTF32straight wxMBConvUTF32BE
+#define wxMBConvUTF32swap wxMBConvUTF32LE
+#else
+#define wxMBConvUTF32swap wxMBConvUTF32BE
+#define wxMBConvUTF32straight wxMBConvUTF32LE
+#endif
+
+
+WXDLLIMPEXP_DATA_BASE(wxMBConvUTF32LE) wxConvUTF32LE;
+WXDLLIMPEXP_DATA_BASE(wxMBConvUTF32BE) wxConvUTF32BE;
+
+
+#ifdef WC_UTF16
+
+// copy 32bit MB to 16bit String
+size_t wxMBConvUTF32straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*(wxUint32*)psz && (!buf || len < n))
+ {
+ wxUint16 cc[2];
+
+ size_t pa=encode_utf16(*(wxUint32*)psz, cc);
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ {
+ *buf++ = cc[0];
+ if (pa > 1)
+ *buf++ = cc[1];
+ }
+ len += pa;
+ psz += sizeof(wxUint32);
+ }
+ if (buf && len<n) *buf=0;
+
+ return len;
+}
+
+
+// copy 16bit String to 32bit MB
+size_t wxMBConvUTF32straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*psz && (!buf || len < n))
+ {
+ wxUint32 cc;
+
+ // cast is ok for WC_UTF16
+ size_t pa = decode_utf16((const wxUint16 *)psz, cc);
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ {
+ *(wxUint32*)buf = cc;
+ buf += sizeof(wxUint32);
+ }
+ len += sizeof(wxUint32);
+ psz += pa;
+ }
+
+ if (buf && len<=n-sizeof(wxUint32))
+ *(wxUint32*)buf=0;
+
+ return len;
+}
+
+
+
+// swap 32bit MB to 16bit String
+size_t wxMBConvUTF32swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*(wxUint32*)psz && (!buf || len < n))
+ {
+ char tmp[4];
+ tmp[0] = psz[3]; tmp[1] = psz[2];
+ tmp[2] = psz[1]; tmp[3] = psz[0];
+
+
+ wxUint16 cc[2];
+
+ size_t pa=encode_utf16(*(wxUint32*)tmp, cc);
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ {
+ *buf++ = cc[0];
+ if (pa > 1)
+ *buf++ = cc[1];
+ }
+ len += pa;
+ psz += sizeof(wxUint32);
+ }
+
+ if (buf && len<n)
+ *buf=0;
+
+ return len;
+}
+
+
+// swap 16bit String to 32bit MB
+size_t wxMBConvUTF32swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*psz && (!buf || len < n))
+ {
+ char cc[4];
+
+ // cast is ok for WC_UTF16
+ size_t pa=decode_utf16((const wxUint16 *)psz, *(wxUint32*)cc);
+ if (pa == (size_t)-1)
+ return pa;
+
+ if (buf)
+ {
+ *buf++ = cc[3];
+ *buf++ = cc[2];
+ *buf++ = cc[1];
+ *buf++ = cc[0];
+ }
+ len += sizeof(wxUint32);
+ psz += pa;
+ }
+
+ if (buf && len<=n-sizeof(wxUint32))
+ *(wxUint32*)buf=0;
+
+ return len;
+}
+
+#else // WC_UTF16
+
+
+// copy 32bit MB to 32bit String
+size_t wxMBConvUTF32straight::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*(wxUint32*)psz && (!buf || len < n))
+ {
+ if (buf)
+ *buf++ = *(wxUint32*)psz;
+ len++;
+ psz += sizeof(wxUint32);
+ }
+
+ if (buf && len<n)
+ *buf=0;
+
+ return len;
+}
+
+
+// copy 32bit String to 32bit MB
+size_t wxMBConvUTF32straight::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*psz && (!buf || len < n))
+ {
+ if (buf)
+ {
+ *(wxUint32*)buf = *psz;
+ buf += sizeof(wxUint32);
+ }
+
+ len += sizeof(wxUint32);
+ psz++;
+ }
+
+ if (buf && len<=n-sizeof(wxUint32))
+ *(wxUint32*)buf=0;
+
+ return len;
+}
+
+
+// swap 32bit MB to 32bit String
+size_t wxMBConvUTF32swap::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*(wxUint32*)psz && (!buf || len < n))
+ {
+ if (buf)
+ {
+ ((char *)buf)[0] = psz[3];
+ ((char *)buf)[1] = psz[2];
+ ((char *)buf)[2] = psz[1];
+ ((char *)buf)[3] = psz[0];
+ buf++;
+ }
+ len++;
+ psz += sizeof(wxUint32);
+ }
+
+ if (buf && len<n)
+ *buf=0;
+
+ return len;
+}
+
+
+// swap 32bit String to 32bit MB
+size_t wxMBConvUTF32swap::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ size_t len=0;
+
+ while (*psz && (!buf || len < n))
+ {
+ if (buf)
+ {
+ *buf++ = ((char *)psz)[3];
+ *buf++ = ((char *)psz)[2];
+ *buf++ = ((char *)psz)[1];
+ *buf++ = ((char *)psz)[0];
+ }
+ len += sizeof(wxUint32);
+ psz++;
+ }
+
+ if (buf && len<=n-sizeof(wxUint32))
+ *(wxUint32*)buf=0;
+
+ return len;
+}
+
+
+#endif // WC_UTF16
+
+
+// ============================================================================
+// The classes doing conversion using the iconv_xxx() functions
+// ============================================================================
+
+#ifdef HAVE_ICONV
+
+// VS: glibc 2.1.3 is broken in that iconv() conversion to/from UCS4 fails with
+// E2BIG if output buffer is _exactly_ as big as needed. Such case is
+// (unless there's yet another bug in glibc) the only case when iconv()
+// returns with (size_t)-1 (which means error) and says there are 0 bytes
+// left in the input buffer -- when _real_ error occurs,
+// bytes-left-in-input buffer is non-zero. Hence, this alternative test for
+// iconv() failure.
+// [This bug does not appear in glibc 2.2.]
+#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ <= 1
+#define ICONV_FAILED(cres, bufLeft) ((cres == (size_t)-1) && \
+ (errno != E2BIG || bufLeft != 0))
+#else
+#define ICONV_FAILED(cres, bufLeft) (cres == (size_t)-1)
+#endif
+
+#define ICONV_CHAR_CAST(x) ((ICONV_CONST char **)(x))
+
+// ----------------------------------------------------------------------------
+// wxMBConv_iconv: encapsulates an iconv character set
+// ----------------------------------------------------------------------------
+
+class wxMBConv_iconv : public wxMBConv
+{
+public:
+ wxMBConv_iconv(const wxChar *name);
+ virtual ~wxMBConv_iconv();
+
+ virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
+ virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
+
+ bool IsOk() const
+ { return (m2w != (iconv_t)-1) && (w2m != (iconv_t)-1); }
+
+protected:
+ // the iconv handlers used to translate from multibyte to wide char and in
+ // the other direction
+ iconv_t m2w,
+ w2m;
+#if wxUSE_THREADS
+ // guards access to m2w and w2m objects
+ wxMutex m_iconvMutex;
+#endif
+
+private:
+ // the name (for iconv_open()) of a wide char charset -- if none is
+ // available on this machine, it will remain NULL
+ static const char *ms_wcCharsetName;
+
+ // true if the wide char encoding we use (i.e. ms_wcCharsetName) has
+ // different endian-ness than the native one
+ static bool ms_wcNeedsSwap;
+};
+
+const char *wxMBConv_iconv::ms_wcCharsetName = NULL;
+bool wxMBConv_iconv::ms_wcNeedsSwap = false;
+
+wxMBConv_iconv::wxMBConv_iconv(const wxChar *name)
+{
+ // Do it the hard way
+ char cname[100];
+ for (size_t i = 0; i < wxStrlen(name)+1; i++)
+ cname[i] = (char) name[i];
+
+ // check for charset that represents wchar_t:
+ if (ms_wcCharsetName == NULL)
+ {
+ ms_wcNeedsSwap = false;
+
+ // try charset with explicit bytesex info (e.g. "UCS-4LE"):
+ ms_wcCharsetName = WC_NAME_BEST;
+ m2w = iconv_open(ms_wcCharsetName, cname);
+
+ if (m2w == (iconv_t)-1)
+ {
+ // try charset w/o bytesex info (e.g. "UCS4")
+ // and check for bytesex ourselves:
+ ms_wcCharsetName = WC_NAME;
+ m2w = iconv_open(ms_wcCharsetName, cname);
+
+ // last bet, try if it knows WCHAR_T pseudo-charset
+ if (m2w == (iconv_t)-1)
+ {
+ ms_wcCharsetName = "WCHAR_T";
+ m2w = iconv_open(ms_wcCharsetName, cname);
+ }
+
+ if (m2w != (iconv_t)-1)
+ {
+ char buf[2], *bufPtr;
+ wchar_t wbuf[2], *wbufPtr;
+ size_t insz, outsz;
+ size_t res;
+
+ buf[0] = 'A';
+ buf[1] = 0;
+ wbuf[0] = 0;
+ insz = 2;
+ outsz = SIZEOF_WCHAR_T * 2;
+ wbufPtr = wbuf;
+ bufPtr = buf;
+
+ res = iconv(m2w, ICONV_CHAR_CAST(&bufPtr), &insz,
+ (char**)&wbufPtr, &outsz);
+
+ if (ICONV_FAILED(res, insz))
+ {
+ ms_wcCharsetName = NULL;
+ wxLogLastError(wxT("iconv"));
+ wxLogError(_("Conversion to charset '%s' doesn't work."), name);
+ }
+ else
+ {
+ ms_wcNeedsSwap = wbuf[0] != (wchar_t)buf[0];
+ }
+ }
+ else
+ {
+ ms_wcCharsetName = NULL;
+
+ // VS: we must not output an error here, since wxWidgets will safely
+ // fall back to using wxEncodingConverter.
+ wxLogTrace(wxT("strconv"), wxT("Impossible to convert to/from charset '%s' with iconv, falling back to wxEncodingConverter."), name);
+ //wxLogError(
+ }
+ }
+ wxLogTrace(wxT("strconv"), wxT("wchar_t charset is '%s', needs swap: %i"), ms_wcCharsetName, ms_wcNeedsSwap);
+ }
+ else // we already have ms_wcCharsetName
+ {
+ m2w = iconv_open(ms_wcCharsetName, cname);
+ }
+
+ // NB: don't ever pass NULL to iconv_open(), it may crash!
+ if ( ms_wcCharsetName )
+ {
+ w2m = iconv_open( cname, ms_wcCharsetName);
+ }
+ else
+ {
+ w2m = (iconv_t)-1;
+ }
+}
+
+wxMBConv_iconv::~wxMBConv_iconv()
+{
+ if ( m2w != (iconv_t)-1 )
+ iconv_close(m2w);
+ if ( w2m != (iconv_t)-1 )
+ iconv_close(w2m);
+}
+
+size_t wxMBConv_iconv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+#if wxUSE_THREADS
+ // NB: iconv() is MT-safe, but each thread must use it's own iconv_t handle.
+ // Unfortunately there is a couple of global wxCSConv objects such as
+ // wxConvLocal that are used all over wx code, so we have to make sure
+ // the handle is used by at most one thread at the time. Otherwise
+ // only a few wx classes would be safe to use from non-main threads
+ // as MB<->WC conversion would fail "randomly".
+ wxMutexLocker lock(wxConstCast(this, wxMBConv_iconv)->m_iconvMutex);
+#endif
+
+ size_t inbuf = strlen(psz);
+ size_t outbuf = n * SIZEOF_WCHAR_T;
+ size_t res, cres;
+ // VS: Use these instead of psz, buf because iconv() modifies its arguments:
+ wchar_t *bufPtr = buf;
+ const char *pszPtr = psz;
+
+ if (buf)
+ {
+ // have destination buffer, convert there
+ cres = iconv(m2w,
+ ICONV_CHAR_CAST(&pszPtr), &inbuf,
+ (char**)&bufPtr, &outbuf);
+ res = n - (outbuf / SIZEOF_WCHAR_T);
+
+ if (ms_wcNeedsSwap)
+ {
+ // convert to native endianness
+ WC_BSWAP(buf /* _not_ bufPtr */, res)
+ }
+
+ // NB: iconv was given only strlen(psz) characters on input, and so
+ // it couldn't convert the trailing zero. Let's do it ourselves
+ // if there's some room left for it in the output buffer.
+ if (res < n)
+ buf[res] = 0;
+ }
+ else
+ {
+ // no destination buffer... convert using temp buffer
+ // to calculate destination buffer requirement
+ wchar_t tbuf[8];
+ res = 0;
+ do {
+ bufPtr = tbuf;
+ outbuf = 8*SIZEOF_WCHAR_T;
+
+ cres = iconv(m2w,
+ ICONV_CHAR_CAST(&pszPtr), &inbuf,
+ (char**)&bufPtr, &outbuf );
+
+ res += 8-(outbuf/SIZEOF_WCHAR_T);
+ } while ((cres==(size_t)-1) && (errno==E2BIG));
+ }
+
+ if (ICONV_FAILED(cres, inbuf))
+ {
+ //VS: it is ok if iconv fails, hence trace only
+ wxLogTrace(wxT("strconv"), wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode()));
+ return (size_t)-1;
+ }
+
+ return res;
+}
+
+size_t wxMBConv_iconv::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+#if wxUSE_THREADS
+ // NB: explained in MB2WC
+ wxMutexLocker lock(wxConstCast(this, wxMBConv_iconv)->m_iconvMutex);
+#endif
+
+ size_t inbuf = wxWcslen(psz) * SIZEOF_WCHAR_T;
+ size_t outbuf = n;
+ size_t res, cres;
+
+ wchar_t *tmpbuf = 0;
+
+ if (ms_wcNeedsSwap)
+ {
+ // need to copy to temp buffer to switch endianness
+ // this absolutely doesn't rock!
+ // (no, doing WC_BSWAP twice on the original buffer won't help, as it
+ // could be in read-only memory, or be accessed in some other thread)
+ tmpbuf=(wchar_t*)malloc((inbuf+1)*SIZEOF_WCHAR_T);
+ memcpy(tmpbuf,psz,(inbuf+1)*SIZEOF_WCHAR_T);
+ WC_BSWAP(tmpbuf, inbuf)
+ psz=tmpbuf;
+ }
+
+ if (buf)
+ {
+ // have destination buffer, convert there
+ cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf );
+
+ res = n-outbuf;
+
+ // NB: iconv was given only wcslen(psz) characters on input, and so
+ // it couldn't convert the trailing zero. Let's do it ourselves
+ // if there's some room left for it in the output buffer.
+ if (res < n)
+ buf[0] = 0;
+ }
+ else
+ {
+ // no destination buffer... convert using temp buffer
+ // to calculate destination buffer requirement
+ char tbuf[16];
+ res = 0;
+ do {
+ buf = tbuf; outbuf = 16;
+
+ cres = iconv( w2m, ICONV_CHAR_CAST(&psz), &inbuf, &buf, &outbuf );
+
+ res += 16 - outbuf;
+ } while ((cres==(size_t)-1) && (errno==E2BIG));
+ }
+
+ if (ms_wcNeedsSwap)
+ {
+ free(tmpbuf);
+ }
+
+ if (ICONV_FAILED(cres, inbuf))
+ {
+ //VS: it is ok if iconv fails, hence trace only
+ wxLogTrace(wxT("strconv"), wxT("iconv failed: %s"), wxSysErrorMsg(wxSysErrorCode()));
+ return (size_t)-1;
+ }
+
+ return res;
+}
+
+#endif // HAVE_ICONV
+
+
+// ============================================================================
+// Win32 conversion classes
+// ============================================================================
+
+#ifdef wxHAVE_WIN32_MB2WC
+
+// from utils.cpp
+#if wxUSE_FONTMAP
+extern WXDLLIMPEXP_BASE long wxCharsetToCodepage(const wxChar *charset);
+extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding);
+#endif
+
+class wxMBConv_win32 : public wxMBConv
+{
+public:
+ wxMBConv_win32()
+ {
+ m_CodePage = CP_ACP;
+ }
+
+#if wxUSE_FONTMAP
+ wxMBConv_win32(const wxChar* name)
+ {
+ m_CodePage = wxCharsetToCodepage(name);
+ }
+
+ wxMBConv_win32(wxFontEncoding encoding)
+ {
+ m_CodePage = wxEncodingToCodepage(encoding);
+ }
+#endif
+
+ size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const
+ {
+ // note that we have to use MB_ERR_INVALID_CHARS flag as it without it
+ // the behaviour is not compatible with the Unix version (using iconv)
+ // and break the library itself, e.g. wxTextInputStream::NextChar()
+ // wouldn't work if reading an incomplete MB char didn't result in an
+ // error
+ //
+ // note however that using MB_ERR_INVALID_CHARS with CP_UTF7 results in
+ // an error (tested under Windows Server 2003) and apparently it is
+ // done on purpose, i.e. the function accepts any input in this case
+ // and although I'd prefer to return error on ill-formed output, our
+ // own wxMBConvUTF7 doesn't detect errors (e.g. lone "+" which is
+ // explicitly ill-formed according to RFC 2152) neither so we don't
+ // even have any fallback here...
+ int flags = m_CodePage == CP_UTF7 ? 0 : MB_ERR_INVALID_CHARS;
+
+ const size_t len = ::MultiByteToWideChar
+ (
+ m_CodePage, // code page
+ flags, // flags: fall on error
+ psz, // input string
+ -1, // its length (NUL-terminated)
+ buf, // output string
+ buf ? n : 0 // size of output buffer
+ );
+
+ // note that it returns count of written chars for buf != NULL and size
+ // of the needed buffer for buf == NULL so in either case the length of
+ // the string (which never includes the terminating NUL) is one less
+ return len ? len - 1 : (size_t)-1;
+ }
+
+ size_t WC2MB(char *buf, const wchar_t *pwz, size_t n) const
+ {
+ /*
+ we have a problem here: by default, WideCharToMultiByte() may
+ replace characters unrepresentable in the target code page with bad
+ quality approximations such as turning "1/2" symbol (U+00BD) into
+ "1" for the code pages which don't have it and we, obviously, want
+ to avoid this at any price
+
+ the trouble is that this function does it _silently_, i.e. it won't
+ even tell us whether it did or not... Win98/2000 and higher provide
+ WC_NO_BEST_FIT_CHARS but it doesn't work for the older systems and
+ we have to resort to a round trip, i.e. check that converting back
+ results in the same string -- this is, of course, expensive but
+ otherwise we simply can't be sure to not garble the data.
+ */
+
+ // determine if we can rely on WC_NO_BEST_FIT_CHARS: according to MSDN
+ // it doesn't work with CJK encodings (which we test for rather roughly
+ // here...) nor with UTF-7/8 nor, of course, with Windows versions not
+ // supporting it
+ BOOL usedDef wxDUMMY_INITIALIZE(false);
+ BOOL *pUsedDef;
+ int flags;
+ if ( CanUseNoBestFit() && m_CodePage < 50000 )
+ {
+ // it's our lucky day
+ flags = WC_NO_BEST_FIT_CHARS;
+ pUsedDef = &usedDef;
+ }
+ else // old system or unsupported encoding
+ {
+ flags = 0;
+ pUsedDef = NULL;
+ }
+
+ const size_t len = ::WideCharToMultiByte
+ (
+ m_CodePage, // code page
+ flags, // either none or no best fit
+ pwz, // input string
+ -1, // it is (wide) NUL-terminated
+ buf, // output buffer
+ buf ? n : 0, // and its size
+ NULL, // default "replacement" char
+ pUsedDef // [out] was it used?
+ );
+
+ if ( !len )
+ {
+ // function totally failed
+ return (size_t)-1;
+ }
+
+ // if we were really converting, check if we succeeded
+ if ( buf )
+ {
+ if ( flags )
+ {
+ // check if the conversion failed, i.e. if any replacements
+ // were done
+ if ( usedDef )
+ return (size_t)-1;
+ }
+ else // we must resort to double tripping...
+ {
+ wxWCharBuffer wcBuf(n);
+ if ( MB2WC(wcBuf.data(), buf, n) == (size_t)-1 ||
+ wcscmp(wcBuf, pwz) != 0 )
+ {
+ // we didn't obtain the same thing we started from, hence
+ // the conversion was lossy and we consider that it failed
+ return (size_t)-1;
+ }
+ }
+ }
+
+ // see the comment above for the reason of "len - 1"
+ return len - 1;
+ }
+
+ bool IsOk() const { return m_CodePage != -1; }
+
+private:
+ static bool CanUseNoBestFit()
+ {
+ static int s_isWin98Or2k = -1;
+
+ if ( s_isWin98Or2k == -1 )
+ {
+ int verMaj, verMin;
+ switch ( wxGetOsVersion(&verMaj, &verMin) )
+ {
+ case wxWIN95:
+ s_isWin98Or2k = verMaj >= 4 && verMin >= 10;
+ break;
+
+ case wxWINDOWS_NT:
+ s_isWin98Or2k = verMaj >= 5;
+ break;
+
+ default:
+ // unknown, be conseravtive by default
+ s_isWin98Or2k = 0;
+ }
+
+ wxASSERT_MSG( s_isWin98Or2k != -1, _T("should be set above") );
+ }
+
+ return s_isWin98Or2k == 1;
+ }
+
+ long m_CodePage;
+};
+
+#endif // wxHAVE_WIN32_MB2WC
+
+// ============================================================================
+// Cocoa conversion classes
+// ============================================================================
+
+#if defined(__WXCOCOA__)
+
+// RN: There is no UTF-32 support in either Core Foundation or
+// Cocoa. Strangely enough, internally Core Foundation uses
+// UTF 32 internally quite a bit - its just not public (yet).
+
+#include <CoreFoundation/CFString.h>
+#include <CoreFoundation/CFStringEncodingExt.h>
+
+CFStringEncoding wxCFStringEncFromFontEnc(wxFontEncoding encoding)
+{
+ CFStringEncoding enc = kCFStringEncodingInvalidId ;
+ if ( encoding == wxFONTENCODING_DEFAULT )
+ {
+ enc = CFStringGetSystemEncoding();
+ }
+ else switch( encoding)
+ {
+ case wxFONTENCODING_ISO8859_1 :
+ enc = kCFStringEncodingISOLatin1 ;
+ break ;
+ case wxFONTENCODING_ISO8859_2 :
+ enc = kCFStringEncodingISOLatin2;
+ break ;
+ case wxFONTENCODING_ISO8859_3 :
+ enc = kCFStringEncodingISOLatin3 ;
+ break ;
+ case wxFONTENCODING_ISO8859_4 :
+ enc = kCFStringEncodingISOLatin4;
+ break ;
+ case wxFONTENCODING_ISO8859_5 :
+ enc = kCFStringEncodingISOLatinCyrillic;
+ break ;
+ case wxFONTENCODING_ISO8859_6 :
+ enc = kCFStringEncodingISOLatinArabic;
+ break ;
+ case wxFONTENCODING_ISO8859_7 :
+ enc = kCFStringEncodingISOLatinGreek;
+ break ;
+ case wxFONTENCODING_ISO8859_8 :
+ enc = kCFStringEncodingISOLatinHebrew;
+ break ;
+ case wxFONTENCODING_ISO8859_9 :
+ enc = kCFStringEncodingISOLatin5;
+ break ;
+ case wxFONTENCODING_ISO8859_10 :
+ enc = kCFStringEncodingISOLatin6;
+ break ;
+ case wxFONTENCODING_ISO8859_11 :
+ enc = kCFStringEncodingISOLatinThai;
+ break ;
+ case wxFONTENCODING_ISO8859_13 :
+ enc = kCFStringEncodingISOLatin7;
+ break ;
+ case wxFONTENCODING_ISO8859_14 :
+ enc = kCFStringEncodingISOLatin8;
+ break ;
+ case wxFONTENCODING_ISO8859_15 :
+ enc = kCFStringEncodingISOLatin9;
+ break ;
+
+ case wxFONTENCODING_KOI8 :
+ enc = kCFStringEncodingKOI8_R;
+ break ;
+ case wxFONTENCODING_ALTERNATIVE : // MS-DOS CP866
+ enc = kCFStringEncodingDOSRussian;
+ break ;
+
+// case wxFONTENCODING_BULGARIAN :
+// enc = ;
+// break ;
+
+ case wxFONTENCODING_CP437 :
+ enc =kCFStringEncodingDOSLatinUS ;
+ break ;
+ case wxFONTENCODING_CP850 :
+ enc = kCFStringEncodingDOSLatin1;
+ break ;
+ case wxFONTENCODING_CP852 :
+ enc = kCFStringEncodingDOSLatin2;
+ break ;
+ case wxFONTENCODING_CP855 :
+ enc = kCFStringEncodingDOSCyrillic;
+ break ;
+ case wxFONTENCODING_CP866 :
+ enc =kCFStringEncodingDOSRussian ;
+ break ;
+ case wxFONTENCODING_CP874 :
+ enc = kCFStringEncodingDOSThai;
+ break ;
+ case wxFONTENCODING_CP932 :
+ enc = kCFStringEncodingDOSJapanese;
+ break ;
+ case wxFONTENCODING_CP936 :
+ enc =kCFStringEncodingDOSChineseSimplif ;
+ break ;
+ case wxFONTENCODING_CP949 :
+ enc = kCFStringEncodingDOSKorean;
+ break ;
+ case wxFONTENCODING_CP950 :
+ enc = kCFStringEncodingDOSChineseTrad;
+ break ;
+ case wxFONTENCODING_CP1250 :
+ enc = kCFStringEncodingWindowsLatin2;
+ break ;
+ case wxFONTENCODING_CP1251 :
+ enc =kCFStringEncodingWindowsCyrillic ;
+ break ;
+ case wxFONTENCODING_CP1252 :
+ enc =kCFStringEncodingWindowsLatin1 ;
+ break ;
+ case wxFONTENCODING_CP1253 :
+ enc = kCFStringEncodingWindowsGreek;
+ break ;
+ case wxFONTENCODING_CP1254 :
+ enc = kCFStringEncodingWindowsLatin5;
+ break ;
+ case wxFONTENCODING_CP1255 :
+ enc =kCFStringEncodingWindowsHebrew ;
+ break ;
+ case wxFONTENCODING_CP1256 :
+ enc =kCFStringEncodingWindowsArabic ;
+ break ;
+ case wxFONTENCODING_CP1257 :
+ enc = kCFStringEncodingWindowsBalticRim;
+ break ;
+// This only really encodes to UTF7 (if that) evidently
+// case wxFONTENCODING_UTF7 :
+// enc = kCFStringEncodingNonLossyASCII ;
+// break ;
+ case wxFONTENCODING_UTF8 :
+ enc = kCFStringEncodingUTF8 ;
+ break ;
+ case wxFONTENCODING_EUC_JP :
+ enc = kCFStringEncodingEUC_JP;
+ break ;
+ case wxFONTENCODING_UTF16 :
+ enc = kCFStringEncodingUnicode ;
+ break ;
+ case wxFONTENCODING_MACROMAN :
+ enc = kCFStringEncodingMacRoman ;
+ break ;
+ case wxFONTENCODING_MACJAPANESE :
+ enc = kCFStringEncodingMacJapanese ;
+ break ;
+ case wxFONTENCODING_MACCHINESETRAD :
+ enc = kCFStringEncodingMacChineseTrad ;
+ break ;
+ case wxFONTENCODING_MACKOREAN :
+ enc = kCFStringEncodingMacKorean ;
+ break ;
+ case wxFONTENCODING_MACARABIC :
+ enc = kCFStringEncodingMacArabic ;
+ break ;
+ case wxFONTENCODING_MACHEBREW :
+ enc = kCFStringEncodingMacHebrew ;
+ break ;
+ case wxFONTENCODING_MACGREEK :
+ enc = kCFStringEncodingMacGreek ;
+ break ;
+ case wxFONTENCODING_MACCYRILLIC :
+ enc = kCFStringEncodingMacCyrillic ;
+ break ;
+ case wxFONTENCODING_MACDEVANAGARI :
+ enc = kCFStringEncodingMacDevanagari ;
+ break ;
+ case wxFONTENCODING_MACGURMUKHI :
+ enc = kCFStringEncodingMacGurmukhi ;
+ break ;
+ case wxFONTENCODING_MACGUJARATI :
+ enc = kCFStringEncodingMacGujarati ;
+ break ;
+ case wxFONTENCODING_MACORIYA :
+ enc = kCFStringEncodingMacOriya ;
+ break ;
+ case wxFONTENCODING_MACBENGALI :
+ enc = kCFStringEncodingMacBengali ;
+ break ;
+ case wxFONTENCODING_MACTAMIL :
+ enc = kCFStringEncodingMacTamil ;
+ break ;
+ case wxFONTENCODING_MACTELUGU :
+ enc = kCFStringEncodingMacTelugu ;
+ break ;
+ case wxFONTENCODING_MACKANNADA :
+ enc = kCFStringEncodingMacKannada ;
+ break ;
+ case wxFONTENCODING_MACMALAJALAM :
+ enc = kCFStringEncodingMacMalayalam ;
+ break ;
+ case wxFONTENCODING_MACSINHALESE :
+ enc = kCFStringEncodingMacSinhalese ;
+ break ;
+ case wxFONTENCODING_MACBURMESE :
+ enc = kCFStringEncodingMacBurmese ;
+ break ;
+ case wxFONTENCODING_MACKHMER :
+ enc = kCFStringEncodingMacKhmer ;
+ break ;
+ case wxFONTENCODING_MACTHAI :
+ enc = kCFStringEncodingMacThai ;
+ break ;
+ case wxFONTENCODING_MACLAOTIAN :
+ enc = kCFStringEncodingMacLaotian ;
+ break ;
+ case wxFONTENCODING_MACGEORGIAN :
+ enc = kCFStringEncodingMacGeorgian ;
+ break ;
+ case wxFONTENCODING_MACARMENIAN :
+ enc = kCFStringEncodingMacArmenian ;
+ break ;
+ case wxFONTENCODING_MACCHINESESIMP :
+ enc = kCFStringEncodingMacChineseSimp ;
+ break ;
+ case wxFONTENCODING_MACTIBETAN :
+ enc = kCFStringEncodingMacTibetan ;
+ break ;
+ case wxFONTENCODING_MACMONGOLIAN :
+ enc = kCFStringEncodingMacMongolian ;
+ break ;
+ case wxFONTENCODING_MACETHIOPIC :
+ enc = kCFStringEncodingMacEthiopic ;
+ break ;
+ case wxFONTENCODING_MACCENTRALEUR :
+ enc = kCFStringEncodingMacCentralEurRoman ;
+ break ;
+ case wxFONTENCODING_MACVIATNAMESE :
+ enc = kCFStringEncodingMacVietnamese ;
+ break ;
+ case wxFONTENCODING_MACARABICEXT :
+ enc = kCFStringEncodingMacExtArabic ;
+ break ;
+ case wxFONTENCODING_MACSYMBOL :
+ enc = kCFStringEncodingMacSymbol ;
+ break ;
+ case wxFONTENCODING_MACDINGBATS :
+ enc = kCFStringEncodingMacDingbats ;
+ break ;
+ case wxFONTENCODING_MACTURKISH :
+ enc = kCFStringEncodingMacTurkish ;
+ break ;
+ case wxFONTENCODING_MACCROATIAN :
+ enc = kCFStringEncodingMacCroatian ;
+ break ;
+ case wxFONTENCODING_MACICELANDIC :
+ enc = kCFStringEncodingMacIcelandic ;
+ break ;
+ case wxFONTENCODING_MACROMANIAN :
+ enc = kCFStringEncodingMacRomanian ;
+ break ;
+ case wxFONTENCODING_MACCELTIC :
+ enc = kCFStringEncodingMacCeltic ;
+ break ;
+ case wxFONTENCODING_MACGAELIC :
+ enc = kCFStringEncodingMacGaelic ;
+ break ;
+// case wxFONTENCODING_MACKEYBOARD :
+// enc = kCFStringEncodingMacKeyboardGlyphs ;
+// break ;
+ default :
+ // because gcc is picky
+ break ;
+ } ;
+ return enc ;
+}
+
+class wxMBConv_cocoa : public wxMBConv
+{
+public:
+ wxMBConv_cocoa()
+ {
+ Init(CFStringGetSystemEncoding()) ;
+ }
+
+ wxMBConv_cocoa(const wxChar* name)
+ {
+ Init( wxCFStringEncFromFontEnc(wxFontMapper::Get()->CharsetToEncoding(name, false) ) ) ;
+ }
+
+ wxMBConv_cocoa(wxFontEncoding encoding)
+ {
+ Init( wxCFStringEncFromFontEnc(encoding) );
+ }
+
+ ~wxMBConv_cocoa()
+ {
+ }
+
+ void Init( CFStringEncoding encoding)
+ {
+ m_encoding = encoding ;
+ }
+
+ size_t MB2WC(wchar_t * szOut, const char * szUnConv, size_t nOutSize) const
+ {
+ wxASSERT(szUnConv);
+
+ CFStringRef theString = CFStringCreateWithBytes (
+ NULL, //the allocator
+ (const UInt8*)szUnConv,
+ strlen(szUnConv),
+ m_encoding,
+ false //no BOM/external representation
+ );
+
+ wxASSERT(theString);
+
+ size_t nOutLength = CFStringGetLength(theString);
+
+ if (szOut == NULL)
+ {
+ CFRelease(theString);
+ return nOutLength;
+ }
+
+ CFRange theRange = { 0, nOutSize };
+
+#if SIZEOF_WCHAR_T == 4
+ UniChar* szUniCharBuffer = new UniChar[nOutSize];
+#endif
+
+ CFStringGetCharacters(theString, theRange, szUniCharBuffer);
+
+ CFRelease(theString);
+
+ szUniCharBuffer[nOutLength] = '\0' ;
+
+#if SIZEOF_WCHAR_T == 4
+ wxMBConvUTF16 converter ;
+ converter.MB2WC(szOut, (const char*)szUniCharBuffer , nOutSize ) ;
+ delete[] szUniCharBuffer;
+#endif
+
+ return nOutLength;
+ }
+
+ size_t WC2MB(char *szOut, const wchar_t *szUnConv, size_t nOutSize) const
+ {
+ wxASSERT(szUnConv);
+
+ size_t nRealOutSize;
+ size_t nBufSize = wxWcslen(szUnConv);
+ UniChar* szUniBuffer = (UniChar*) szUnConv;
+
+#if SIZEOF_WCHAR_T == 4
+ wxMBConvUTF16BE converter ;
+ nBufSize = converter.WC2MB( NULL , szUnConv , 0 );
+ szUniBuffer = new UniChar[ (nBufSize / sizeof(UniChar)) + 1] ;
+ converter.WC2MB( (char*) szUniBuffer , szUnConv, nBufSize + sizeof(UniChar)) ;
+ nBufSize /= sizeof(UniChar);
+#endif
+
+ CFStringRef theString = CFStringCreateWithCharactersNoCopy(
+ NULL, //allocator
+ szUniBuffer,
+ nBufSize,
+ kCFAllocatorNull //deallocator - we want to deallocate it ourselves
+ );
+
+ wxASSERT(theString);
+
+ //Note that CER puts a BOM when converting to unicode
+ //so we check and use getchars instead in that case
+ if (m_encoding == kCFStringEncodingUnicode)
+ {
+ if (szOut != NULL)
+ CFStringGetCharacters(theString, CFRangeMake(0, nOutSize - 1), (UniChar*) szOut);
+
+ nRealOutSize = CFStringGetLength(theString) + 1;
+ }
+ else
+ {
+ CFStringGetBytes(
+ theString,
+ CFRangeMake(0, CFStringGetLength(theString)),
+ m_encoding,
+ 0, //what to put in characters that can't be converted -
+ //0 tells CFString to return NULL if it meets such a character
+ false, //not an external representation
+ (UInt8*) szOut,
+ nOutSize,
+ (CFIndex*) &nRealOutSize
+ );
+ }
+
+ CFRelease(theString);
+
+#if SIZEOF_WCHAR_T == 4
+ delete[] szUniBuffer;
+#endif
+
+ return nRealOutSize - 1;
+ }
+
+ bool IsOk() const
+ {
+ return m_encoding != kCFStringEncodingInvalidId &&
+ CFStringIsEncodingAvailable(m_encoding);
+ }
+
+private:
+ CFStringEncoding m_encoding ;
+};
+
+#endif // defined(__WXCOCOA__)
+
+// ============================================================================
+// Mac conversion classes
+// ============================================================================
+
+#if defined(__WXMAC__) && defined(TARGET_CARBON)
+
+class wxMBConv_mac : public wxMBConv
+{
+public:
+ wxMBConv_mac()
+ {
+ Init(CFStringGetSystemEncoding()) ;
+ }
+
+#if wxUSE_FONTMAP
+ wxMBConv_mac(const wxChar* name)
+ {
+ Init( wxMacGetSystemEncFromFontEnc(wxFontMapper::Get()->CharsetToEncoding(name, false) ) ) ;
+ }
+#endif
+
+ wxMBConv_mac(wxFontEncoding encoding)
+ {
+ Init( wxMacGetSystemEncFromFontEnc(encoding) );
+ }
+
+ ~wxMBConv_mac()
+ {
+ OSStatus status = noErr ;
+ status = TECDisposeConverter(m_MB2WC_converter);
+ status = TECDisposeConverter(m_WC2MB_converter);
+ }
+
+
+ void Init( TextEncodingBase encoding)
+ {
+ OSStatus status = noErr ;
+ m_char_encoding = encoding ;
+ m_unicode_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode16BitFormat) ;
+
+ status = TECCreateConverter(&m_MB2WC_converter,
+ m_char_encoding,
+ m_unicode_encoding);
+ status = TECCreateConverter(&m_WC2MB_converter,
+ m_unicode_encoding,
+ m_char_encoding);
+ }
+
+ size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const
+ {
+ OSStatus status = noErr ;
+ ByteCount byteOutLen ;
+ ByteCount byteInLen = strlen(psz) ;
+ wchar_t *tbuf = NULL ;
+ UniChar* ubuf = NULL ;
+ size_t res = 0 ;
+
+ if (buf == NULL)
+ {
+ //apple specs say at least 32
+ n = wxMax( 32 , byteInLen ) ;
+ tbuf = (wchar_t*) malloc( n * SIZEOF_WCHAR_T) ;
+ }
+ ByteCount byteBufferLen = n * sizeof( UniChar ) ;
+#if SIZEOF_WCHAR_T == 4
+ ubuf = (UniChar*) malloc( byteBufferLen + 2 ) ;
+#else
+ ubuf = (UniChar*) (buf ? buf : tbuf) ;
+#endif
+ status = TECConvertText(m_MB2WC_converter, (ConstTextPtr) psz , byteInLen, &byteInLen,
+ (TextPtr) ubuf , byteBufferLen, &byteOutLen);
+#if SIZEOF_WCHAR_T == 4
+ // we have to terminate here, because n might be larger for the trailing zero, and if UniChar
+ // is not properly terminated we get random characters at the end
+ ubuf[byteOutLen / sizeof( UniChar ) ] = 0 ;
+ wxMBConvUTF16BE converter ;
+ res = converter.MB2WC( (buf ? buf : tbuf) , (const char*)ubuf , n ) ;
+ free( ubuf ) ;
+#else
+ res = byteOutLen / sizeof( UniChar ) ;
+#endif
+ if ( buf == NULL )
+ free(tbuf) ;
+
+ if ( buf && res < n)
+ buf[res] = 0;
+
+ return res ;
+ }
+
+ size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const
+ {
+ OSStatus status = noErr ;
+ ByteCount byteOutLen ;
+ ByteCount byteInLen = wxWcslen(psz) * SIZEOF_WCHAR_T ;
+
+ char *tbuf = NULL ;
+
+ if (buf == NULL)
+ {
+ //apple specs say at least 32
+ n = wxMax( 32 , ((byteInLen / SIZEOF_WCHAR_T) * 8) + SIZEOF_WCHAR_T );
+ tbuf = (char*) malloc( n ) ;
+ }
+
+ ByteCount byteBufferLen = n ;
+ UniChar* ubuf = NULL ;
+#if SIZEOF_WCHAR_T == 4
+ wxMBConvUTF16BE converter ;
+ size_t unicharlen = converter.WC2MB( NULL , psz , 0 ) ;
+ byteInLen = unicharlen ;
+ ubuf = (UniChar*) malloc( byteInLen + 2 ) ;
+ converter.WC2MB( (char*) ubuf , psz, unicharlen + 2 ) ;
+#else
+ ubuf = (UniChar*) psz ;
+#endif
+ status = TECConvertText(m_WC2MB_converter, (ConstTextPtr) ubuf , byteInLen, &byteInLen,
+ (TextPtr) (buf ? buf : tbuf) , byteBufferLen, &byteOutLen);
+#if SIZEOF_WCHAR_T == 4
+ free( ubuf ) ;
+#endif
+ if ( buf == NULL )
+ free(tbuf) ;
+
+ size_t res = byteOutLen ;
+ if ( buf && res < n)
+ {
+ buf[res] = 0;
+
+ //we need to double-trip to verify it didn't insert any ? in place
+ //of bogus characters
+ wxWCharBuffer wcBuf(n);
+ size_t pszlen = wxWcslen(psz);
+ if ( MB2WC(wcBuf.data(), buf, n) == (size_t)-1 ||
+ wxWcslen(wcBuf) != pszlen ||
+ memcmp(wcBuf, psz, pszlen * sizeof(wchar_t)) != 0 )
+ {
+ // we didn't obtain the same thing we started from, hence
+ // the conversion was lossy and we consider that it failed
+ return (size_t)-1;
+ }
+ }
+
+ return res ;
+ }
+
+ bool IsOk() const
+ { return m_MB2WC_converter != NULL && m_WC2MB_converter != NULL ; }
+
+private:
+ TECObjectRef m_MB2WC_converter ;
+ TECObjectRef m_WC2MB_converter ;
+
+ TextEncodingBase m_char_encoding ;
+ TextEncodingBase m_unicode_encoding ;
+};
+
+#endif // defined(__WXMAC__) && defined(TARGET_CARBON)
+
+// ============================================================================
+// wxEncodingConverter based conversion classes
+// ============================================================================
+
+#if wxUSE_FONTMAP
+
+class wxMBConv_wxwin : public wxMBConv
+{
+private:
+ void Init()
+ {
+ m_ok = m2w.Init(m_enc, wxFONTENCODING_UNICODE) &&
+ w2m.Init(wxFONTENCODING_UNICODE, m_enc);
+ }
+
+public:
+ // temporarily just use wxEncodingConverter stuff,
+ // so that it works while a better implementation is built
+ wxMBConv_wxwin(const wxChar* name)
+ {
+ if (name)
+ m_enc = wxFontMapper::Get()->CharsetToEncoding(name, false);
+ else
+ m_enc = wxFONTENCODING_SYSTEM;
+
+ Init();
+ }
+
+ wxMBConv_wxwin(wxFontEncoding enc)
+ {
+ m_enc = enc;
+
+ Init();
+ }
+
+ size_t MB2WC(wchar_t *buf, const char *psz, size_t WXUNUSED(n)) const
+ {
+ size_t inbuf = strlen(psz);
+ if (buf)
+ {
+ if (!m2w.Convert(psz,buf))
+ return (size_t)-1;
+ }
+ return inbuf;
+ }
+
+ size_t WC2MB(char *buf, const wchar_t *psz, size_t WXUNUSED(n)) const
+ {
+ const size_t inbuf = wxWcslen(psz);
+ if (buf)
+ {
+ if (!w2m.Convert(psz,buf))
+ return (size_t)-1;
+ }
+
+ return inbuf;
+ }
+
+ bool IsOk() const { return m_ok; }
+
+public:
+ wxFontEncoding m_enc;
+ wxEncodingConverter m2w, w2m;
+
+ // were we initialized successfully?
+ bool m_ok;
+
+ DECLARE_NO_COPY_CLASS(wxMBConv_wxwin)
+};
+
+#endif // wxUSE_FONTMAP
+
+// ============================================================================
+// wxCSConv implementation
+// ============================================================================
+
+void wxCSConv::Init()
+{
+ m_name = NULL;
+ m_convReal = NULL;
+ m_deferred = true;
+}
+
+wxCSConv::wxCSConv(const wxChar *charset)
+{
+ Init();
+
+ if ( charset )
+ {
+ SetName(charset);
+ }
+
+ m_encoding = wxFONTENCODING_SYSTEM;
+}
+
+wxCSConv::wxCSConv(wxFontEncoding encoding)
+{
+ if ( encoding == wxFONTENCODING_MAX || encoding == wxFONTENCODING_DEFAULT )
+ {
+ wxFAIL_MSG( _T("invalid encoding value in wxCSConv ctor") );
+
+ encoding = wxFONTENCODING_SYSTEM;
+ }
+
+ Init();
+
+ m_encoding = encoding;
+}
+
+wxCSConv::~wxCSConv()
+{
+ Clear();
+}
+
+wxCSConv::wxCSConv(const wxCSConv& conv)
+ : wxMBConv()
+{
+ Init();
+
+ SetName(conv.m_name);
+ m_encoding = conv.m_encoding;
+}
+
+wxCSConv& wxCSConv::operator=(const wxCSConv& conv)
+{
+ Clear();
+
+ SetName(conv.m_name);
+ m_encoding = conv.m_encoding;
+
+ return *this;
+}
+
+void wxCSConv::Clear()
+{
+ free(m_name);
+ delete m_convReal;
+
+ m_name = NULL;
+ m_convReal = NULL;
+}
+
+void wxCSConv::SetName(const wxChar *charset)
+{
+ if (charset)
+ {
+ m_name = wxStrdup(charset);
+ m_deferred = true;
+ }
+}
+
+wxMBConv *wxCSConv::DoCreate() const
+{
+ // check for the special case of ASCII or ISO8859-1 charset: as we have
+ // special knowledge of it anyhow, we don't need to create a special
+ // conversion object
+ if ( m_encoding == wxFONTENCODING_ISO8859_1 )
+ {
+ // don't convert at all
+ return NULL;
+ }
+
+ // we trust OS to do conversion better than we can so try external
+ // conversion methods first
+ //
+ // the full order is:
+ // 1. OS conversion (iconv() under Unix or Win32 API)
+ // 2. hard coded conversions for UTF
+ // 3. wxEncodingConverter as fall back
+
+ // step (1)
+#ifdef HAVE_ICONV
+#if !wxUSE_FONTMAP
+ if ( m_name )
+#endif // !wxUSE_FONTMAP
+ {
+ wxString name(m_name);
+
+#if wxUSE_FONTMAP
+ if ( name.empty() )
+ name = wxFontMapper::Get()->GetEncodingName(m_encoding);
+#endif // wxUSE_FONTMAP
+
+ wxMBConv_iconv *conv = new wxMBConv_iconv(name);
+ if ( conv->IsOk() )
+ return conv;
+
+ delete conv;
+ }
+#endif // HAVE_ICONV
+
+#ifdef wxHAVE_WIN32_MB2WC
+ {
+#if wxUSE_FONTMAP
+ wxMBConv_win32 *conv = m_name ? new wxMBConv_win32(m_name)
+ : new wxMBConv_win32(m_encoding);
+ if ( conv->IsOk() )
+ return conv;
+
+ delete conv;
+#else
+ return NULL;
+#endif
+ }
+#endif // wxHAVE_WIN32_MB2WC
+#if defined(__WXMAC__)
+ {
+ if ( m_name || ( m_encoding < wxFONTENCODING_UTF16BE ) )
+ {
+
+#if wxUSE_FONTMAP
+ wxMBConv_mac *conv = m_name ? new wxMBConv_mac(m_name)
+ : new wxMBConv_mac(m_encoding);
+#else
+ wxMBConv_mac *conv = new wxMBConv_mac(m_encoding);
+#endif
+ if ( conv->IsOk() )
+ return conv;
+
+ delete conv;
+ }
+ }
+#endif
+#if defined(__WXCOCOA__)
+ {
+ if ( m_name || ( m_encoding <= wxFONTENCODING_UTF16 ) )
+ {
+
+ wxMBConv_cocoa *conv = m_name ? new wxMBConv_cocoa(m_name)
+ : new wxMBConv_cocoa(m_encoding);
+ if ( conv->IsOk() )
+ return conv;
+
+ delete conv;
+ }
+ }
+#endif
+ // step (2)
+ wxFontEncoding enc = m_encoding;
+#if wxUSE_FONTMAP
+ if ( enc == wxFONTENCODING_SYSTEM && m_name )
+ {
+ // use "false" to suppress interactive dialogs -- we can be called from
+ // anywhere and popping up a dialog from here is the last thing we want to
+ // do
+ enc = wxFontMapper::Get()->CharsetToEncoding(m_name, false);
+ }
+#endif // wxUSE_FONTMAP
+
+ switch ( enc )
+ {
+ case wxFONTENCODING_UTF7:
+ return new wxMBConvUTF7;
+
+ case wxFONTENCODING_UTF8:
+ return new wxMBConvUTF8;
+
+ case wxFONTENCODING_UTF16BE:
+ return new wxMBConvUTF16BE;
+
+ case wxFONTENCODING_UTF16LE:
+ return new wxMBConvUTF16LE;
+
+ case wxFONTENCODING_UTF32BE:
+ return new wxMBConvUTF32BE;
+
+ case wxFONTENCODING_UTF32LE:
+ return new wxMBConvUTF32LE;
+
+ default:
+ // nothing to do but put here to suppress gcc warnings
+ ;
+ }
+
+ // step (3)
+#if wxUSE_FONTMAP
+ {
+ wxMBConv_wxwin *conv = m_name ? new wxMBConv_wxwin(m_name)
+ : new wxMBConv_wxwin(m_encoding);
+ if ( conv->IsOk() )
+ return conv;
+
+ delete conv;
+ }
+#endif // wxUSE_FONTMAP
+
+ // NB: This is a hack to prevent deadlock. What could otherwise happen
+ // in Unicode build: wxConvLocal creation ends up being here
+ // because of some failure and logs the error. But wxLog will try to
+ // attach timestamp, for which it will need wxConvLocal (to convert
+ // time to char* and then wchar_t*), but that fails, tries to log
+ // error, but wxLog has a (already locked) critical section that
+ // guards static buffer.
+ static bool alreadyLoggingError = false;
+ if (!alreadyLoggingError)
+ {
+ alreadyLoggingError = true;
+ wxLogError(_("Cannot convert from the charset '%s'!"),
+ m_name ? m_name
+ :
+#if wxUSE_FONTMAP
+ wxFontMapper::GetEncodingDescription(m_encoding).c_str()
+#else // !wxUSE_FONTMAP
+ wxString::Format(_("encoding %s"), m_encoding).c_str()
+#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
+ );
+ alreadyLoggingError = false;
+ }
+
+ return NULL;
+}
+
+void wxCSConv::CreateConvIfNeeded() const
+{
+ if ( m_deferred )
+ {
+ wxCSConv *self = (wxCSConv *)this; // const_cast
+
+#if wxUSE_INTL
+ // if we don't have neither the name nor the encoding, use the default
+ // encoding for this system
+ if ( !m_name && m_encoding == wxFONTENCODING_SYSTEM )
+ {
+ self->m_name = wxStrdup(wxLocale::GetSystemEncodingName());
+ }
+#endif // wxUSE_INTL
+
+ self->m_convReal = DoCreate();
+ self->m_deferred = false;
+ }
+}
+
+size_t wxCSConv::MB2WC(wchar_t *buf, const char *psz, size_t n) const
+{
+ CreateConvIfNeeded();
+
+ if (m_convReal)
+ return m_convReal->MB2WC(buf, psz, n);
+
+ // latin-1 (direct)
+ size_t len = strlen(psz);
+
+ if (buf)
+ {
+ for (size_t c = 0; c <= len; c++)
+ buf[c] = (unsigned char)(psz[c]);
+ }
+
+ return len;
+}
+
+size_t wxCSConv::WC2MB(char *buf, const wchar_t *psz, size_t n) const
+{
+ CreateConvIfNeeded();
+
+ if (m_convReal)
+ return m_convReal->WC2MB(buf, psz, n);
+
+ // latin-1 (direct)
+ const size_t len = wxWcslen(psz);
+ if (buf)
+ {
+ for (size_t c = 0; c <= len; c++)
+ {
+ if (psz[c] > 0xFF)
+ return (size_t)-1;
+ buf[c] = (char)psz[c];
+ }
+ }
+ else
+ {
+ for (size_t c = 0; c <= len; c++)
+ {
+ if (psz[c] > 0xFF)
+ return (size_t)-1;
+ }
+ }
+
+ return len;
+}
projects / wxWidgets.git / blobdiff