X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/414b7b40164c4b146c4518d4873cbee9570a222e..9d529fa05c2bef6aa4ae9f08b39bb7c0a4fe5c59:/include/wx/buffer.h diff --git a/include/wx/buffer.h b/include/wx/buffer.h index 55068fb0cb..7daf8a8e71 100644 --- a/include/wx/buffer.h +++ b/include/wx/buffer.h @@ -16,122 +16,166 @@ #include // malloc() and free() +inline char *wxStrDup(const char *s) { return wxStrdupA(s); } +#if wxUSE_WCHAR_T + inline wchar_t *wxStrDup(const wchar_t *ws) { return wxStrdupW(ws); } +#endif + // ---------------------------------------------------------------------------- // Special classes for (wide) character strings: they use malloc/free instead // of new/delete // ---------------------------------------------------------------------------- -#define DEFINE_BUFFER(classname, chartype, strdupfunc) \ -class WXDLLIMPEXP_BASE classname \ -{ \ -public: \ - classname(const chartype *str = NULL) \ - : m_str(str ? strdupfunc(str) : NULL) \ - { \ - } \ - \ - classname(const wxCStrData& cstr); \ - \ - classname(size_t len) \ - : m_str((chartype *)malloc((len + 1)*sizeof(chartype))) \ - { \ - m_str[len] = (chartype)0; \ - } \ - \ - /* no need to check for NULL, free() does it */ \ - ~classname() { free(m_str); } \ - \ - /* \ - WARNING: \ - \ - the copy ctor and assignment operators change the passed in object \ - even although it is declared as "const", so: \ - \ - a) it shouldn't be really const \ - b) you shouldn't use it afterwards (or know that it was reset) \ - \ +template +class wxCharTypeBuffer +{ +public: + typedef T CharType; + + wxCharTypeBuffer(const CharType *str = NULL) + : m_str(str ? wxStrDup(str) : NULL) + { + } + + wxCharTypeBuffer(size_t len) + : m_str((CharType *)malloc((len + 1)*sizeof(CharType))) + { + m_str[len] = (CharType)0; + } + + /* no need to check for NULL, free() does it */ + ~wxCharTypeBuffer() { free(m_str); } + + /* + WARNING: + + the copy ctor and assignment operators change the passed in object + even although it is declared as "const", so: + + a) it shouldn't be really const + b) you shouldn't use it afterwards (or know that it was reset) + This is very ugly but is unfortunately needed to make the normal use\ - of classname buffer objects possible and is very similar to what \ - std::auto_ptr<> does (as if it were an excuse...) \ - */ \ - \ - /* \ - because of the remark above, release() is declared const even if it \ - isn't really const \ - */ \ - chartype *release() const \ - { \ - chartype *p = m_str; \ - ((classname *)this)->m_str = NULL; \ - return p; \ - } \ - \ - void reset() \ - { \ - free(m_str); \ - m_str = NULL; \ - } \ - \ - classname(const classname& src) \ - : m_str(src.release()) \ - { \ - } \ - \ - classname& operator=(const chartype *str) \ - { \ - free(m_str); \ - m_str = str ? strdupfunc(str) : NULL; \ - return *this; \ - } \ - \ - classname& operator=(const classname& src) \ - { \ - free(m_str); \ - m_str = src.release(); \ - \ - return *this; \ - } \ - \ - bool extend(size_t len) \ - { \ - chartype * \ - str = (chartype *)realloc(m_str, (len + 1)*sizeof(chartype)); \ - if ( !str ) \ - return false; \ - \ - m_str = str; \ - \ - return true; \ - } \ - \ - chartype *data() { return m_str; } \ - const chartype *data() const { return m_str; } \ - operator const chartype *() const { return m_str; } \ - chartype operator[](size_t n) const { return m_str[n]; } \ - \ -private: \ - chartype *m_str; \ -} - -DEFINE_BUFFER(wxCharBuffer, char, wxStrdupA); + of wxCharTypeBuffer buffer objects possible and is very similar to what + std::auto_ptr<> does (as if it were an excuse...) + */ + + /* + because of the remark above, release() is declared const even if it + isn't really const + */ + CharType *release() const + { + CharType *p = m_str; + ((wxCharTypeBuffer *)this)->m_str = NULL; + return p; + } + + void reset() + { + free(m_str); + m_str = NULL; + } + + wxCharTypeBuffer(const wxCharTypeBuffer& src) + : m_str(src.release()) + { + } + + wxCharTypeBuffer& operator=(const CharType *str) + { + free(m_str); + m_str = str ? wxStrDup(str) : NULL; + return *this; + } + + wxCharTypeBuffer& operator=(const wxCharTypeBuffer& src) + { + free(m_str); + m_str = src.release(); + + return *this; + } + + bool extend(size_t len) + { + CharType * + str = (CharType *)realloc(m_str, (len + 1)*sizeof(CharType)); + if ( !str ) + return false; + + m_str = str; + + return true; + } + + CharType *data() { return m_str; } + const CharType *data() const { return m_str; } + operator const CharType *() const { return m_str; } + CharType operator[](size_t n) const { return m_str[n]; } + +private: + CharType *m_str; +}; + +class WXDLLIMPEXP_BASE wxCharBuffer : public wxCharTypeBuffer +{ +public: + typedef wxCharTypeBuffer wxCharTypeBufferBase; + + wxCharBuffer(const CharType *str = NULL) : wxCharTypeBufferBase(str) {} + wxCharBuffer(size_t len) : wxCharTypeBufferBase(len) {} + +#if !wxUSE_UNICODE + wxCharBuffer(const wxCStrData& cstr); +#endif +}; #if wxUSE_WCHAR_T +class WXDLLIMPEXP_BASE wxWCharBuffer : public wxCharTypeBuffer +{ +public: + typedef wxCharTypeBuffer wxCharTypeBufferBase; -DEFINE_BUFFER(wxWCharBuffer, wchar_t, wxStrdupW); + wxWCharBuffer(const CharType *str = NULL) : wxCharTypeBufferBase(str) {} + wxWCharBuffer(size_t len) : wxCharTypeBufferBase(len) {} +#if wxUSE_UNICODE + wxWCharBuffer(const wxCStrData& cstr); +#endif +}; #endif // wxUSE_WCHAR_T -#undef DEFINE_BUFFER +// wxCharTypeBuffer implicitly convertible to T* +template +class wxWritableCharTypeBuffer : public wxCharTypeBuffer +{ +public: + typedef typename wxCharTypeBuffer::CharType CharType; + + wxWritableCharTypeBuffer(const wxCharTypeBuffer& src) + : wxCharTypeBuffer(src) {} + // FIXME-UTF8: this won't be needed after converting mb_str()/wc_str() to + // always return a buffer + wxWritableCharTypeBuffer(const CharType *str = NULL) + : wxCharTypeBuffer(str) {} + + operator CharType*() { return this->data(); } +}; + +typedef wxWritableCharTypeBuffer wxWritableCharBuffer; +typedef wxWritableCharTypeBuffer wxWritableWCharBuffer; + #if wxUSE_UNICODE - typedef wxWCharBuffer wxWxCharBuffer; + #define wxWxCharBuffer wxWCharBuffer #define wxMB2WXbuf wxWCharBuffer #define wxWX2MBbuf wxCharBuffer #define wxWC2WXbuf wxChar* #define wxWX2WCbuf wxChar* #else // ANSI - typedef wxCharBuffer wxWxCharBuffer; + #define wxWxCharBuffer wxCharBuffer #define wxMB2WXbuf wxChar* #define wxWX2MBbuf wxChar*