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use native conversions that are close to the native storage of wxString

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58519 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Stefan Csomor
2009-01-30 15:14:38 +00:00
parent fada8bef05
commit 3143722d5a
1 changed files with 39 additions and 48 deletions
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87
src/osx/core/cfstring.cpp
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@@ -608,28 +608,16 @@ wxCFStringRef::wxCFStringRef( const wxString &st , wxFontEncoding WXUNUSED_IN_UN
wxString str = st ; wxString str = st ;
wxMacConvertNewlines13To10( &str ) ; wxMacConvertNewlines13To10( &str ) ;
#if wxUSE_UNICODE #if wxUSE_UNICODE
#if SIZEOF_WCHAR_T == 2 #if wxUSE_UNICODE_WCHAR
reset( CFStringCreateWithCharacters( kCFAllocatorDefault, // native = wchar_t 4 bytes for us
(UniChar*)str.wc_str() , str.Len() ) ); reset( CFStringCreateWithBytes( kCFAllocatorDefault,
(const UInt8*)str.wc_str() , str.length()*4, kCFStringEncodingUTF32, false /* no BOM */ ) );
#elif wxUSE_UNICODE_UTF8
// native = utf8
reset( CFStringCreateWithBytes( kCFAllocatorDefault,
(const UInt8*) str.utf8_str() , str.utf8_length() , kCFStringEncodingUTF8, false /* no BOM */ ) );
#else #else
wxMBConvUTF16 converter ; #error "unsupported unicode representation"
size_t unicharbytes = converter.FromWChar( NULL , 0 , str.wc_str() , str.Length() ) ;
wxASSERT( unicharbytes != wxCONV_FAILED );
if ( unicharbytes == wxCONV_FAILED )
{
// create an empty string
reset( wxCFRetain( CFSTR("") ) );
}
else
{
// unicharbytes: number of bytes needed for UTF-16 encoded string (without terminating null)
// unichars: number of UTF-16 characters (without terminating null)
size_t unichars = unicharbytes / sizeof(UniChar) ;
UniChar *unibuf = new UniChar[ unichars ] ;
converter.FromWChar( (char*)unibuf , unicharbytes , str.wc_str() , str.Length() ) ;
reset( CFStringCreateWithCharacters( kCFAllocatorDefault , unibuf , unichars ) ) ;
delete[] unibuf ;
}
#endif #endif
#else // not wxUSE_UNICODE #else // not wxUSE_UNICODE
reset( CFStringCreateWithCString( kCFAllocatorSystemDefault , str.c_str() , reset( CFStringCreateWithCString( kCFAllocatorSystemDefault , str.c_str() ,
@@ -644,38 +632,41 @@ wxString wxCFStringRef::AsString(wxFontEncoding WXUNUSED_IN_UNICODE(encoding))
return wxEmptyString ; return wxEmptyString ;
Size cflen = CFStringGetLength( get() ) ; Size cflen = CFStringGetLength( get() ) ;
size_t noChars ; char* buf = NULL ;
wxChar* buf = NULL ;
CFStringEncoding cfencoding = 0;
wxString result;
#if wxUSE_UNICODE
#if wxUSE_UNICODE_WCHAR
cfencoding = kCFStringEncodingUTF32;
#elif wxUSE_UNICODE_UTF8
cfencoding = kCFStringEncodingUTF8;
#else
#error "unsupported unicode representation"
#endif
#else
cfencoding = wxMacGetSystemEncFromFontEnc( encoding );
#endif
CFIndex cStrLen ;
CFStringGetBytes( get() , CFRangeMake(0, cflen) , cfencoding ,
'?' , false , NULL , 0 , &cStrLen ) ;
buf = new char[ cStrLen ] ;
CFStringGetBytes( get() , CFRangeMake(0, cflen) , cfencoding,
'?' , false , (unsigned char*) buf , cStrLen , &cStrLen) ;
#if wxUSE_UNICODE #if wxUSE_UNICODE
#if SIZEOF_WCHAR_T == 2 #if wxUSE_UNICODE_WCHAR
buf = new wxChar[ cflen + 1 ] ; result = wxString( (const wchar_t*) buf , cStrLen/4);
CFStringGetCharacters( get() , CFRangeMake( 0 , cflen ) , (UniChar*) buf ) ; #elif wxUSE_UNICODE_UTF8
noChars = cflen ; result = wxString::FromUTF8( buf, cStrLen );
#else
#error "unsupported unicode representation"
#endif
#else #else
UniChar* unibuf = new UniChar[ cflen + 1 ] ; wxString result(buf, cStrLen) ;
CFStringGetCharacters( get() , CFRangeMake( 0 , cflen ) , (UniChar*) unibuf ) ;
unibuf[cflen] = 0 ;
wxMBConvUTF16 converter ;
noChars = converter.MB2WC( NULL , (const char*)unibuf , 0 ) ;
wxASSERT_MSG( noChars != wxCONV_FAILED, _T("Unable to count the number of characters in this string!") );
buf = new wxChar[ noChars + 1 ] ;
noChars = converter.MB2WC( buf , (const char*)unibuf , noChars + 1 ) ;
wxASSERT_MSG( noChars != wxCONV_FAILED, _T("Conversion of string failed!") );
delete[] unibuf ;
#endif
#else
CFIndex cStrLen ;
CFStringGetBytes( get() , CFRangeMake(0, cflen) , wxMacGetSystemEncFromFontEnc( encoding ) ,
'?' , false , NULL , 0 , &cStrLen ) ;
buf = new wxChar[ cStrLen + 1 ] ;
CFStringGetBytes( get() , CFRangeMake(0, cflen) , wxMacGetSystemEncFromFontEnc( encoding ) ,
'?' , false , (unsigned char*) buf , cStrLen , &cStrLen) ;
noChars = cStrLen ;
#endif #endif
buf[noChars] = 0 ;
wxString result(buf) ;
delete[] buf ; delete[] buf ;
wxMacConvertNewlines10To13( &result); wxMacConvertNewlines10To13( &result);
return result ; return result ;