/////////////////////////////////////////////////////////////////////////////
// Name:        src/mac/corefoundation/cfstring.cpp
// Purpose:     wxCFStringHolder and other string functions
// Author:      Stefan Csomor
// Modified by:
// Created:     2004-10-29 (from code in src/mac/carbon/utils.cpp)
// RCS-ID:      $Id: cfstring.cpp 40283 2006-07-24 18:01:39Z VZ $
// Copyright:   (c) Stefan Csomor
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#include "wx/wxprec.h"

#ifndef WX_PRECOMP
    #include "wx/string.h"
    #include "wx/intl.h"
    #if wxUSE_GUI
        #include "wx/font.h"
    #endif
#endif

#include "wx/mac/corefoundation/cfstring.h"

#ifdef __DARWIN__
    #include <CoreServices/CoreServices.h>
#else
    #include <TextCommon.h>
#endif

void wxMacConvertNewlines13To10( char * data )
{
    char * buf = data ;
    while( (buf=strchr(buf,0x0d)) != NULL )
    {
        *buf = 0x0a ;
        buf++ ;
    }
}

void wxMacConvertNewlines10To13( char * data )
{
    char * buf = data ;
    while( (buf=strchr(buf,0x0a)) != NULL )
    {
        *buf = 0x0d ;
        buf++ ;
    }
}

void wxMacConvertNewlines13To10( wxString * data )
{
    size_t len = data->Length() ;

    if ( len == 0 || wxStrchr(data->c_str(),0x0d)==NULL)
        return ;

    wxString temp(*data) ;
    wxStringBuffer buf(*data,len ) ;
    memcpy( buf , temp.c_str() , (len+1)*sizeof(wxChar) ) ;

    wxMacConvertNewlines13To10( buf ) ;
}

void wxMacConvertNewlines10To13( wxString * data )
{
    size_t len = data->Length() ;

    if ( data->Length() == 0 || wxStrchr(data->c_str(),0x0a)==NULL)
        return ;

    wxString temp(*data) ;
    wxStringBuffer buf(*data,len ) ;
    memcpy( buf , temp.c_str() , (len+1)*sizeof(wxChar) ) ;
    wxMacConvertNewlines10To13( buf ) ;
}


#if wxUSE_UNICODE
void wxMacConvertNewlines13To10( wxChar * data )
{
    wxChar * buf = data ;
    while( (buf=wxStrchr(buf,0x0d)) != NULL )
    {
        *buf = 0x0a ;
        buf++ ;
    }
}

void wxMacConvertNewlines10To13( wxChar * data )
{
    wxChar * buf =  data ;
    while( (buf=wxStrchr(buf,0x0a)) != NULL )
    {
        *buf = 0x0d ;
        buf++ ;
    }
}
#endif

wxUint32 wxMacGetSystemEncFromFontEnc(wxFontEncoding encoding)
{
    TextEncodingBase enc = 0 ;
    if ( encoding == wxFONTENCODING_DEFAULT )
    {
#if wxUSE_GUI
        encoding = wxFont::GetDefaultEncoding() ;
#else
        encoding = wxFONTENCODING_SYSTEM; // to be set below
#endif
    }

    if ( encoding == wxFONTENCODING_SYSTEM )
    {
        enc = CFStringGetSystemEncoding();
    }

    switch( encoding)
    {
    case wxFONTENCODING_ISO8859_1 :
        enc = kTextEncodingISOLatin1 ;
        break ;
    case wxFONTENCODING_ISO8859_2 :
        enc = kTextEncodingISOLatin2;
        break ;
    case wxFONTENCODING_ISO8859_3 :
        enc = kTextEncodingISOLatin3 ;
        break ;
    case wxFONTENCODING_ISO8859_4 :
        enc = kTextEncodingISOLatin4;
        break ;
    case wxFONTENCODING_ISO8859_5 :
        enc = kTextEncodingISOLatinCyrillic;
        break ;
    case wxFONTENCODING_ISO8859_6 :
        enc = kTextEncodingISOLatinArabic;
        break ;
    case wxFONTENCODING_ISO8859_7 :
        enc = kTextEncodingISOLatinGreek;
        break ;
    case wxFONTENCODING_ISO8859_8 :
        enc = kTextEncodingISOLatinHebrew;
        break ;
    case wxFONTENCODING_ISO8859_9 :
        enc = kTextEncodingISOLatin5;
        break ;
    case wxFONTENCODING_ISO8859_10 :
        enc = kTextEncodingISOLatin6;
        break ;
    case wxFONTENCODING_ISO8859_13 :
        enc = kTextEncodingISOLatin7;
        break ;
    case wxFONTENCODING_ISO8859_14 :
        enc = kTextEncodingISOLatin8;
        break ;
    case wxFONTENCODING_ISO8859_15 :
        enc = kTextEncodingISOLatin9;
        break ;

    case wxFONTENCODING_KOI8 :
        enc = kTextEncodingKOI8_R;
        break ;
    case wxFONTENCODING_ALTERNATIVE : // MS-DOS CP866
        enc = kTextEncodingDOSRussian;
        break ;
/*
    case wxFONTENCODING_BULGARIAN :
        enc = ;
        break ;
*/
    case wxFONTENCODING_CP437 :
        enc =kTextEncodingDOSLatinUS ;
        break ;
    case wxFONTENCODING_CP850 :
        enc = kTextEncodingDOSLatin1;
        break ;
    case wxFONTENCODING_CP852 :
        enc = kTextEncodingDOSLatin2;
        break ;
    case wxFONTENCODING_CP855 :
        enc = kTextEncodingDOSCyrillic;
        break ;
    case wxFONTENCODING_CP866 :
        enc =kTextEncodingDOSRussian ;
        break ;
    case wxFONTENCODING_CP874 :
        enc = kTextEncodingDOSThai;
        break ;
    case wxFONTENCODING_CP932 :
        enc = kTextEncodingDOSJapanese;
        break ;
    case wxFONTENCODING_CP936 :
        enc = kTextEncodingDOSChineseSimplif ;
        break ;
    case wxFONTENCODING_CP949 :
        enc = kTextEncodingDOSKorean;
        break ;
    case wxFONTENCODING_CP950 :
        enc = kTextEncodingDOSChineseTrad;
        break ;

    case wxFONTENCODING_CP1250 :
        enc = kTextEncodingWindowsLatin2;
        break ;
    case wxFONTENCODING_CP1251 :
        enc =kTextEncodingWindowsCyrillic ;
        break ;
    case wxFONTENCODING_CP1252 :
        enc =kTextEncodingWindowsLatin1 ;
        break ;
    case wxFONTENCODING_CP1253 :
        enc = kTextEncodingWindowsGreek;
        break ;
    case wxFONTENCODING_CP1254 :
        enc = kTextEncodingWindowsLatin5;
        break ;
    case wxFONTENCODING_CP1255 :
        enc =kTextEncodingWindowsHebrew ;
        break ;
    case wxFONTENCODING_CP1256 :
        enc =kTextEncodingWindowsArabic ;
        break ;
    case wxFONTENCODING_CP1257 :
        enc = kTextEncodingWindowsBalticRim;
        break ;

    case wxFONTENCODING_UTF7 :
        enc = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicodeUTF7Format) ;
        break ;
    case wxFONTENCODING_UTF8 :
        enc = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicodeUTF8Format) ;
        break ;
    case wxFONTENCODING_EUC_JP :
        enc = kTextEncodingEUC_JP;
        break ;
    case wxFONTENCODING_UTF16BE :
        enc = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode16BitFormat) ;
        break ;
    case wxFONTENCODING_UTF16LE :
        enc = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode16BitFormat) ;
        break ;
    case wxFONTENCODING_UTF32BE :
        enc = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode32BitFormat) ;
        break ;
    case wxFONTENCODING_UTF32LE :
        enc = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode32BitFormat) ;
        break ;

    case wxFONTENCODING_MACROMAN :
        enc = kTextEncodingMacRoman ;
        break ;
    case wxFONTENCODING_MACJAPANESE :
        enc = kTextEncodingMacJapanese ;
        break ;
    case wxFONTENCODING_MACCHINESETRAD :
        enc = kTextEncodingMacChineseTrad ;
        break ;
    case wxFONTENCODING_MACKOREAN :
        enc = kTextEncodingMacKorean ;
        break ;
    case wxFONTENCODING_MACARABIC :
        enc = kTextEncodingMacArabic ;
        break ;
    case wxFONTENCODING_MACHEBREW :
        enc = kTextEncodingMacHebrew ;
        break ;
    case wxFONTENCODING_MACGREEK :
        enc = kTextEncodingMacGreek ;
        break ;
    case wxFONTENCODING_MACCYRILLIC :
        enc = kTextEncodingMacCyrillic ;
        break ;
    case wxFONTENCODING_MACDEVANAGARI :
        enc = kTextEncodingMacDevanagari ;
        break ;
    case wxFONTENCODING_MACGURMUKHI :
        enc = kTextEncodingMacGurmukhi ;
        break ;
    case wxFONTENCODING_MACGUJARATI :
        enc = kTextEncodingMacGujarati ;
        break ;
    case wxFONTENCODING_MACORIYA :
        enc = kTextEncodingMacOriya ;
        break ;
    case wxFONTENCODING_MACBENGALI :
        enc = kTextEncodingMacBengali ;
        break ;
    case wxFONTENCODING_MACTAMIL :
        enc = kTextEncodingMacTamil ;
        break ;
    case wxFONTENCODING_MACTELUGU :
        enc = kTextEncodingMacTelugu ;
        break ;
    case wxFONTENCODING_MACKANNADA :
        enc = kTextEncodingMacKannada ;
        break ;
    case wxFONTENCODING_MACMALAJALAM :
        enc = kTextEncodingMacMalayalam ;
        break ;
    case wxFONTENCODING_MACSINHALESE :
        enc = kTextEncodingMacSinhalese ;
        break ;
    case wxFONTENCODING_MACBURMESE :
        enc = kTextEncodingMacBurmese ;
        break ;
    case wxFONTENCODING_MACKHMER :
        enc = kTextEncodingMacKhmer ;
        break ;
    case wxFONTENCODING_MACTHAI :
        enc = kTextEncodingMacThai ;
        break ;
    case wxFONTENCODING_MACLAOTIAN :
        enc = kTextEncodingMacLaotian ;
        break ;
    case wxFONTENCODING_MACGEORGIAN :
        enc = kTextEncodingMacGeorgian ;
        break ;
    case wxFONTENCODING_MACARMENIAN :
        enc = kTextEncodingMacArmenian ;
        break ;
    case wxFONTENCODING_MACCHINESESIMP :
        enc = kTextEncodingMacChineseSimp ;
        break ;
    case wxFONTENCODING_MACTIBETAN :
        enc = kTextEncodingMacTibetan ;
        break ;
    case wxFONTENCODING_MACMONGOLIAN :
        enc = kTextEncodingMacMongolian ;
        break ;
    case wxFONTENCODING_MACETHIOPIC :
        enc = kTextEncodingMacEthiopic ;
        break ;
    case wxFONTENCODING_MACCENTRALEUR :
        enc = kTextEncodingMacCentralEurRoman ;
        break ;
    case wxFONTENCODING_MACVIATNAMESE :
        enc = kTextEncodingMacVietnamese ;
        break ;
    case wxFONTENCODING_MACARABICEXT :
        enc = kTextEncodingMacExtArabic ;
        break ;
    case wxFONTENCODING_MACSYMBOL :
        enc = kTextEncodingMacSymbol ;
        break ;
    case wxFONTENCODING_MACDINGBATS :
        enc = kTextEncodingMacDingbats ;
        break ;
    case wxFONTENCODING_MACTURKISH :
        enc = kTextEncodingMacTurkish ;
        break ;
    case wxFONTENCODING_MACCROATIAN :
        enc = kTextEncodingMacCroatian ;
        break ;
    case wxFONTENCODING_MACICELANDIC :
        enc = kTextEncodingMacIcelandic ;
        break ;
    case wxFONTENCODING_MACROMANIAN :
        enc = kTextEncodingMacRomanian ;
        break ;
    case wxFONTENCODING_MACCELTIC :
        enc = kTextEncodingMacCeltic ;
        break ;
    case wxFONTENCODING_MACGAELIC :
        enc = kTextEncodingMacGaelic ;
        break ;
    case wxFONTENCODING_MACKEYBOARD :
        enc = kTextEncodingMacKeyboardGlyphs ;
        break ;
    default : // to make gcc happy
        break ;
    };
    return enc ;
}

wxFontEncoding wxMacGetFontEncFromSystemEnc(wxUint32 encoding)
{
    wxFontEncoding enc = wxFONTENCODING_DEFAULT ;

    switch( encoding)
    {
    case kTextEncodingISOLatin1  :
        enc = wxFONTENCODING_ISO8859_1 ;
        break ;
    case kTextEncodingISOLatin2 :
        enc = wxFONTENCODING_ISO8859_2;
        break ;
    case kTextEncodingISOLatin3 :
        enc = wxFONTENCODING_ISO8859_3 ;
        break ;
    case kTextEncodingISOLatin4 :
        enc = wxFONTENCODING_ISO8859_4;
        break ;
    case kTextEncodingISOLatinCyrillic :
        enc = wxFONTENCODING_ISO8859_5;
        break ;
    case kTextEncodingISOLatinArabic :
        enc = wxFONTENCODING_ISO8859_6;
        break ;
    case kTextEncodingISOLatinGreek :
        enc = wxFONTENCODING_ISO8859_7;
        break ;
    case kTextEncodingISOLatinHebrew :
        enc = wxFONTENCODING_ISO8859_8;
        break ;
    case kTextEncodingISOLatin5 :
        enc = wxFONTENCODING_ISO8859_9;
        break ;
    case kTextEncodingISOLatin6 :
        enc = wxFONTENCODING_ISO8859_10;
        break ;
    case kTextEncodingISOLatin7 :
        enc = wxFONTENCODING_ISO8859_13;
        break ;
    case kTextEncodingISOLatin8 :
        enc = wxFONTENCODING_ISO8859_14;
        break ;
    case kTextEncodingISOLatin9 :
        enc =wxFONTENCODING_ISO8859_15 ;
        break ;

    case kTextEncodingKOI8_R :
        enc = wxFONTENCODING_KOI8;
        break ;
/*
    case  :
        enc = wxFONTENCODING_BULGARIAN;
        break ;
*/
    case kTextEncodingDOSLatinUS :
        enc = wxFONTENCODING_CP437;
        break ;
    case kTextEncodingDOSLatin1 :
        enc = wxFONTENCODING_CP850;
        break ;
    case kTextEncodingDOSLatin2 :
        enc =wxFONTENCODING_CP852 ;
        break ;
    case kTextEncodingDOSCyrillic :
        enc = wxFONTENCODING_CP855;
        break ;
    case kTextEncodingDOSRussian :
        enc = wxFONTENCODING_CP866;
        break ;
    case kTextEncodingDOSThai :
        enc =wxFONTENCODING_CP874 ;
        break ;
    case kTextEncodingDOSJapanese :
        enc = wxFONTENCODING_CP932;
        break ;
    case kTextEncodingDOSChineseSimplif :
        enc = wxFONTENCODING_CP936;
        break ;
    case kTextEncodingDOSKorean :
        enc = wxFONTENCODING_CP949;
        break ;
    case kTextEncodingDOSChineseTrad :
        enc = wxFONTENCODING_CP950;
        break ;

    case kTextEncodingWindowsLatin2 :
        enc = wxFONTENCODING_CP1250;
        break ;
    case kTextEncodingWindowsCyrillic :
        enc = wxFONTENCODING_CP1251;
        break ;
    case kTextEncodingWindowsLatin1 :
        enc = wxFONTENCODING_CP1252;
        break ;
    case kTextEncodingWindowsGreek :
        enc = wxFONTENCODING_CP1253;
        break ;
    case kTextEncodingWindowsLatin5 :
        enc = wxFONTENCODING_CP1254;
        break ;
    case kTextEncodingWindowsHebrew :
        enc = wxFONTENCODING_CP1255;
        break ;
    case kTextEncodingWindowsArabic :
        enc = wxFONTENCODING_CP1256;
        break ;
    case kTextEncodingWindowsBalticRim :
        enc =wxFONTENCODING_CP1257 ;
        break ;
    case kTextEncodingEUC_JP :
        enc = wxFONTENCODING_EUC_JP;
        break ;
#if 0
    case wxFONTENCODING_UTF7 :
        enc = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicodeUTF7Format) ;
        break ;
    case wxFONTENCODING_UTF8 :
        enc = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicodeUTF8Format) ;
        break ;
    case wxFONTENCODING_UTF16BE :
        enc = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode16BitFormat) ;
        break ;
    case wxFONTENCODING_UTF16LE :
        enc = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode16BitFormat) ;
        break ;
    case wxFONTENCODING_UTF32BE :
        enc = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode32BitFormat) ;
        break ;
    case wxFONTENCODING_UTF32LE :
        enc = CreateTextEncoding(kTextEncodingUnicodeDefault,0,kUnicode32BitFormat) ;
        break ;
#endif
    case kTextEncodingMacRoman :
        enc = wxFONTENCODING_MACROMAN ;
        break ;
    case kTextEncodingMacJapanese :
        enc = wxFONTENCODING_MACJAPANESE ;
        break ;
    case kTextEncodingMacChineseTrad :
        enc = wxFONTENCODING_MACCHINESETRAD ;
        break ;
    case kTextEncodingMacKorean :
        enc = wxFONTENCODING_MACKOREAN ;
        break ;
    case kTextEncodingMacArabic :
        enc =wxFONTENCODING_MACARABIC ;
        break ;
    case kTextEncodingMacHebrew :
        enc = wxFONTENCODING_MACHEBREW ;
        break ;
    case kTextEncodingMacGreek :
        enc = wxFONTENCODING_MACGREEK ;
        break ;
    case kTextEncodingMacCyrillic :
        enc = wxFONTENCODING_MACCYRILLIC ;
        break ;
    case kTextEncodingMacDevanagari :
        enc = wxFONTENCODING_MACDEVANAGARI ;
        break ;
    case kTextEncodingMacGurmukhi :
        enc = wxFONTENCODING_MACGURMUKHI ;
        break ;
    case kTextEncodingMacGujarati :
        enc = wxFONTENCODING_MACGUJARATI ;
        break ;
    case kTextEncodingMacOriya :
        enc =wxFONTENCODING_MACORIYA ;
        break ;
    case kTextEncodingMacBengali :
        enc =wxFONTENCODING_MACBENGALI ;
        break ;
    case kTextEncodingMacTamil :
        enc = wxFONTENCODING_MACTAMIL ;
        break ;
    case kTextEncodingMacTelugu :
        enc = wxFONTENCODING_MACTELUGU ;
        break ;
    case kTextEncodingMacKannada :
        enc = wxFONTENCODING_MACKANNADA ;
        break ;
    case kTextEncodingMacMalayalam :
        enc = wxFONTENCODING_MACMALAJALAM ;
        break ;
    case kTextEncodingMacSinhalese :
        enc = wxFONTENCODING_MACSINHALESE ;
        break ;
    case kTextEncodingMacBurmese :
        enc = wxFONTENCODING_MACBURMESE ;
        break ;
    case kTextEncodingMacKhmer :
        enc = wxFONTENCODING_MACKHMER ;
        break ;
    case kTextEncodingMacThai :
        enc = wxFONTENCODING_MACTHAI ;
        break ;
    case kTextEncodingMacLaotian :
        enc = wxFONTENCODING_MACLAOTIAN ;
        break ;
    case kTextEncodingMacGeorgian :
        enc = wxFONTENCODING_MACGEORGIAN ;
        break ;
    case kTextEncodingMacArmenian :
        enc = wxFONTENCODING_MACARMENIAN ;
        break ;
    case kTextEncodingMacChineseSimp :
        enc = wxFONTENCODING_MACCHINESESIMP ;
        break ;
    case kTextEncodingMacTibetan :
        enc = wxFONTENCODING_MACTIBETAN ;
        break ;
    case kTextEncodingMacMongolian :
        enc = wxFONTENCODING_MACMONGOLIAN ;
        break ;
    case kTextEncodingMacEthiopic :
        enc = wxFONTENCODING_MACETHIOPIC ;
        break ;
    case kTextEncodingMacCentralEurRoman:
        enc = wxFONTENCODING_MACCENTRALEUR  ;
        break ;
    case kTextEncodingMacVietnamese:
        enc = wxFONTENCODING_MACVIATNAMESE  ;
        break ;
    case kTextEncodingMacExtArabic :
        enc = wxFONTENCODING_MACARABICEXT ;
        break ;
    case kTextEncodingMacSymbol :
        enc = wxFONTENCODING_MACSYMBOL ;
        break ;
    case kTextEncodingMacDingbats :
        enc = wxFONTENCODING_MACDINGBATS ;
        break ;
    case kTextEncodingMacTurkish :
        enc = wxFONTENCODING_MACTURKISH ;
        break ;
    case kTextEncodingMacCroatian :
        enc = wxFONTENCODING_MACCROATIAN ;
        break ;
    case kTextEncodingMacIcelandic :
        enc = wxFONTENCODING_MACICELANDIC ;
        break ;
    case kTextEncodingMacRomanian :
        enc = wxFONTENCODING_MACROMANIAN ;
        break ;
    case kTextEncodingMacCeltic :
        enc = wxFONTENCODING_MACCELTIC ;
        break ;
    case kTextEncodingMacGaelic :
        enc = wxFONTENCODING_MACGAELIC ;
        break ;
    case kTextEncodingMacKeyboardGlyphs :
        enc = wxFONTENCODING_MACKEYBOARD ;
        break ;
    } ;
    return enc ;
}


//
// CFStringRefs (Carbon only)
//

// converts this string into a carbon foundation string with optional pc 2 mac encoding
void wxMacCFStringHolder::Assign( const wxString &st , wxFontEncoding encoding )
{
    Release() ;
    if (st.IsEmpty())
    {
        m_cfs = CFSTR("") ;
        CFRetain( m_cfs ) ;
    }
    else
    {
        wxString str = st ;
        wxMacConvertNewlines13To10( &str ) ;
#if wxUSE_UNICODE
#if SIZEOF_WCHAR_T == 2
        m_cfs = CFStringCreateWithCharacters( kCFAllocatorDefault,
            (UniChar*)str.wc_str() , str.Len() );
#else
        wxMBConvUTF16 converter ;
        size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
        UniChar *unibuf = new UniChar[ unicharlen / sizeof(UniChar) + 1 ] ;
        converter.WC2MB( (char*)unibuf , str.wc_str() , unicharlen ) ;
        m_cfs = CFStringCreateWithCharacters( kCFAllocatorDefault ,
            unibuf , unicharlen / sizeof(UniChar) ) ;
        delete[] unibuf ;
#endif
#else // not wxUSE_UNICODE
        m_cfs = CFStringCreateWithCString( kCFAllocatorSystemDefault , str.c_str() ,
            wxMacGetSystemEncFromFontEnc( encoding ) ) ;
#endif
    }
    m_release = true ;
}

wxString wxMacCFStringHolder::AsString(wxFontEncoding encoding)
{
    if ( m_cfs == NULL )
        return wxEmptyString ;

    Size cflen = CFStringGetLength( m_cfs )  ;
    size_t noChars ;
    wxChar* buf = NULL ;

#if wxUSE_UNICODE
#if SIZEOF_WCHAR_T == 2
    buf = new wxChar[ cflen + 1 ] ;
    CFStringGetCharacters( m_cfs , CFRangeMake( 0 , cflen ) , (UniChar*) buf ) ;
    noChars = cflen ;
#else
    UniChar* unibuf = new UniChar[ cflen + 1 ] ;
    CFStringGetCharacters( m_cfs , 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( m_cfs , CFRangeMake(0, cflen) , wxMacGetSystemEncFromFontEnc( encoding ) ,
        '?' , false , NULL , 0 , &cStrLen ) ;
    buf = new wxChar[ cStrLen + 1 ] ;
    CFStringGetBytes( m_cfs , CFRangeMake(0, cflen) , wxMacGetSystemEncFromFontEnc( encoding ) ,
        '?' , false , (unsigned char*) buf , cStrLen , &cStrLen) ;
    noChars = cStrLen ;
#endif

    buf[noChars] = 0 ;
    wxMacConvertNewlines10To13( buf ) ;
    wxString result(buf) ;
    delete[] buf ;
    return result ;
}


wxMacUniCharBuffer::wxMacUniCharBuffer( const wxString &str )
{
    m_chars = str.length() ;
    m_ubuf = NULL ;

#if SIZEOF_WCHAR_T == 4
    wxMBConvUTF16 converter ;
#if wxUSE_UNICODE
    size_t unicharlen = converter.WC2MB( NULL , str.wc_str() , 0 ) ;
    m_ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
    converter.WC2MB( (char*) m_ubuf , str.wc_str(), unicharlen + 2 ) ;
#else
    const wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
    size_t unicharlen = converter.WC2MB( NULL , wchar.data() , 0 ) ;
    m_ubuf = (UniChar*) malloc( unicharlen + 2 ) ;
    converter.WC2MB( (char*) m_ubuf , wchar.data() , unicharlen + 2 ) ;
#endif
    m_chars = unicharlen / 2 ;
#else // SIZEOF_WCHAR_T is then 2
#if wxUSE_UNICODE
    m_ubuf = malloc( m_chars * 2 + 2 ) ;
    memcpy( m_ubuf , (UniChar*) str.wc_str() , m_chars * 2 + 2 ) ;
#else
    wxWCharBuffer wchar = str.wc_str( wxConvLocal ) ;
    m_chars = wxWcslen( wchar.data() ) ;
    m_ubuf = malloc( m_chars * 2 + 2 ) ;
    memcpy( m_ubuf , (UniChar*) wchar.data() , m_chars * 2 + 2 ) ;
#endif
#endif
}

wxMacUniCharBuffer::~wxMacUniCharBuffer()
{
    free( m_ubuf ) ;
}

UniCharArrayPtr wxMacUniCharBuffer::GetBuffer() 
{
    return m_ubuf ;
}
   
UniCharCount wxMacUniCharBuffer::GetChars()
{
    return m_chars ;
}
