X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8b04d4c45108c8d70df205ece2690f6729e35b1f..9941ff2d65e13d3de3e0e4d452118df34a168455:/include/wx/strconv.h diff --git a/include/wx/strconv.h b/include/wx/strconv.h index aea07bb35c..9248f2cb7e 100644 --- a/include/wx/strconv.h +++ b/include/wx/strconv.h @@ -33,20 +33,24 @@ #if wxUSE_WCHAR_T // ---------------------------------------------------------------------------- -// wxMBConv (base class for conversions, using libc conversion itself) +// wxMBConv (abstract base class for conversions) // ---------------------------------------------------------------------------- class WXDLLIMPEXP_BASE wxMBConv { public: // the actual conversion takes place here - 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; + // + // note that n is the size of the output buffer, not the length of input + // (which is always supposed to be NUL-terminated) + virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const = 0; + virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const = 0; - // No longer inline since BC++ complains. + // MB <-> WC const wxWCharBuffer cMB2WC(const char *psz) const; const wxCharBuffer cWC2MB(const wchar_t *psz) const; + // convenience functions for converting MB or WC to/from wxWin default #if wxUSE_UNICODE const wxWCharBuffer cMB2WX(const char *psz) const { return cMB2WC(psz); } const wxCharBuffer cWX2MB(const wchar_t *psz) const { return cWC2MB(psz); } @@ -63,7 +67,22 @@ public: virtual ~wxMBConv(); }; -WXDLLIMPEXP_DATA_BASE(extern wxMBConv) wxConvLibc; +// ---------------------------------------------------------------------------- +// wxMBConvLibc uses standard mbstowcs() and wcstombs() functions for +// conversion (hence it depends on the current locale) +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_BASE wxMBConvLibc : public wxMBConv +{ +public: + 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; +}; + +// not very accurately named because it is not necessarily of type wxMBConvLibc +// (but the name can't eb changed because of backwards compatibility) default +// conversion +WXDLLIMPEXP_DATA_BASE(extern wxMBConv&) wxConvLibc; // ---------------------------------------------------------------------------- // wxMBConvUTF7 (for conversion using UTF7 encoding) @@ -76,7 +95,7 @@ public: virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const; }; -WXDLLIMPEXP_DATA_BASE(extern wxMBConvUTF7) wxConvUTF7; +WXDLLIMPEXP_DATA_BASE(extern wxMBConvUTF7&) wxConvUTF7; // ---------------------------------------------------------------------------- // wxMBConvUTF8 (for conversion using UTF8 encoding) @@ -89,7 +108,51 @@ public: virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const; }; -WXDLLIMPEXP_DATA_BASE(extern wxMBConvUTF8) wxConvUTF8; +WXDLLIMPEXP_DATA_BASE(extern wxMBConvUTF8&) wxConvUTF8; + +// ---------------------------------------------------------------------------- +// wxMBConvUTF16LE (for conversion using UTF16 Little Endian encoding) +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_BASE wxMBConvUTF16LE : public wxMBConv +{ +public: + 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; +}; + +// ---------------------------------------------------------------------------- +// wxMBConvUTF16BE (for conversion using UTF16 Big Endian encoding) +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_BASE wxMBConvUTF16BE : public wxMBConv +{ +public: + 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; +}; + +// ---------------------------------------------------------------------------- +// wxMBConvUCS4LE (for conversion using UTF32 Little Endian encoding) +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_BASE wxMBConvUTF32LE : public wxMBConv +{ +public: + 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; +}; + +// ---------------------------------------------------------------------------- +// wxMBConvUCS4BE (for conversion using UTF32 Big Endian encoding) +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_BASE wxMBConvUTF32BE : public wxMBConv +{ +public: + 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; +}; // ---------------------------------------------------------------------------- // wxCSConv (for conversion based on loadable char sets) @@ -97,20 +160,19 @@ WXDLLIMPEXP_DATA_BASE(extern wxMBConvUTF8) wxConvUTF8; #include "wx/fontenc.h" -class WXDLLIMPEXP_BASE wxCharacterSet; - class WXDLLIMPEXP_BASE wxCSConv : public wxMBConv { public: + // we can be created either from charset name or from an encoding constant + // but we can't have both at once wxCSConv(const wxChar *charset); wxCSConv(wxFontEncoding encoding); + wxCSConv(const wxCSConv& conv); virtual ~wxCSConv(); wxCSConv& operator=(const wxCSConv& conv); - void LoadNow(); - 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; @@ -120,21 +182,44 @@ private: // common part of all ctors void Init(); + // creates m_convReal if necessary + void CreateConvIfNeeded() const; + + // do create m_convReal (unconditionally) + wxMBConv *DoCreate() const; + + // set the name (may be only called when m_name == NULL), makes copy of + // charset string void SetName(const wxChar *charset); + // note that we can't use wxString here because of compilation // dependencies: we're included from wx/string.h wxChar *m_name; - wxCharacterSet *m_cset; wxFontEncoding m_encoding; + + // use CreateConvIfNeeded() before accessing m_convReal! + wxMBConv *m_convReal; bool m_deferred; }; #define wxConvFile wxConvLocal -WXDLLIMPEXP_DATA_BASE(extern wxCSConv) wxConvLocal; -WXDLLIMPEXP_DATA_BASE(extern wxCSConv) wxConvISO8859_1; +WXDLLIMPEXP_DATA_BASE(extern wxCSConv&) wxConvLocal; +WXDLLIMPEXP_DATA_BASE(extern wxCSConv&) wxConvISO8859_1; WXDLLIMPEXP_DATA_BASE(extern wxMBConv *) wxConvCurrent; +// ---------------------------------------------------------------------------- +// endianness-dependent conversions +// ---------------------------------------------------------------------------- + +#ifdef WORDS_BIGENDIAN + typedef wxMBConvUTF16BE wxMBConvUTF16; + typedef wxMBConvUTF32BE wxMBConvUTF32; +#else + typedef wxMBConvUTF16LE wxMBConvUTF16; + typedef wxMBConvUTF32LE wxMBConvUTF32; +#endif + // ---------------------------------------------------------------------------- // filename conversion macros // ---------------------------------------------------------------------------- @@ -168,8 +253,9 @@ public: const char* cWX2MB(const char *psz) const { return psz; } }; +#define wxConvFile wxConvLocal + WXDLLIMPEXP_DATA_BASE(extern wxMBConv) wxConvLibc, - wxConvFile, wxConvLocal, wxConvISO8859_1, wxConvUTF8;