X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1fc10687bf85c1d2ccce2c43c8300a4b0a0edbce..a703012aedeb8064c8294c6aeeea95e6950ad170:/include/wx/unichar.h diff --git a/include/wx/unichar.h b/include/wx/unichar.h index 0ecba58e9a..5d019f52ba 100644 --- a/include/wx/unichar.h +++ b/include/wx/unichar.h @@ -15,31 +15,8 @@ #include "wx/chartype.h" #include "wx/stringimpl.h" -// wint_t is just a typedef for wchar_t for many old compilers but for modern -// ones it's a separate type and we must provide a conversion to it to allow -// passing wxUniChar[Ref] to functions taking wint_t such as iswalnum() &c -#if (defined(__GNUC__) && \ - !defined(__DARWIN__) && !defined(__OS2__) && !defined(__DOS__)) || \ - (defined(__VISUALC__) && defined(_NATIVE_WCHAR_T_DEFINED)) - #define wxWINT_T_IS_SEPARATE_TYPE -#endif - -// helper macro for doing something dependent on whether wint_t is or isn't a -// typedef inside another macro -#ifdef wxWINT_T_IS_SEPARATE_TYPE - #define wxIF_WINT_T_TYPE(x) x -#else // !wxWINT_T_IS_SEPARATE_TYPE - #define wxIF_WINT_T_TYPE(x) -#endif // wxWINT_T_IS_SEPARATE_TYPE/!wxWINT_T_IS_SEPARATE_TYPE - -// wchar_t seems to be defined as unsigned short by all Windows compilers but -// unsigned int everywhere else -#ifndef __WIN32__ - #define wxWCHAR_T_IS_UINT -#endif - -class WXDLLIMPEXP_BASE wxUniCharRef; -class WXDLLIMPEXP_BASE wxStringIteratorNode; +class WXDLLIMPEXP_FWD_BASE wxUniCharRef; +class WXDLLIMPEXP_FWD_BASE wxString; // This class represents single Unicode character. It can be converted to // and from char or wchar_t and implements commonly used character operations. @@ -59,12 +36,16 @@ public: wxUniChar(unsigned char c) { m_value = From8bit((char)c); } // Create the character from a wchar_t character value. +#if wxWCHAR_T_IS_REAL_TYPE wxUniChar(wchar_t c) { m_value = c; } -#ifdef wxWINT_T_IS_SEPARATE_TYPE - wxUniChar(wint_t c) { m_value = c; } #endif wxUniChar(int c) { m_value = c; } + wxUniChar(unsigned int c) { m_value = c; } + wxUniChar(long int c) { m_value = c; } + wxUniChar(unsigned long int c) { m_value = c; } + wxUniChar(short int c) { m_value = c; } + wxUniChar(unsigned short int c) { m_value = c; } wxUniChar(const wxUniCharRef& c); @@ -87,25 +68,41 @@ public: // Returns true if the character is an ASCII character: bool IsAscii() const { return m_value < 0x80; } + // Returns true if the character is representable as a single byte in the + // current locale encoding and return this byte in output argument c (which + // must be non-NULL) + bool GetAsChar(char *c) const + { +#if wxUSE_UNICODE + if ( !IsAscii() ) + { +#if !wxUSE_UTF8_LOCALE_ONLY + if ( GetAsHi8bit(m_value, c) ) + return true; +#endif // !wxUSE_UTF8_LOCALE_ONLY + + return false; + } +#endif // wxUSE_UNICODE + + *c = wx_truncate_cast(char, m_value); + return true; + } + // Conversions to char and wchar_t types: all of those are needed to be // able to pass wxUniChars to verious standard narrow and wide character // functions operator char() const { return To8bit(m_value); } - operator wchar_t() const { return m_value; } - operator int() const { return m_value; } -#ifndef wxWCHAR_T_IS_UINT - operator unsigned int() const { return m_value; } -#endif - - // More conversions needed for other standard functions: uchar is for VC++ - // _mbxxx() ones (to which toxxx/isxxx() are mapped when _MBCS is defined) - // and some wide character functions take wint_t which happens to be the - // same as wchar_t for Windows compilers but not for g++ (except for the - // special Apple version) operator unsigned char() const { return (unsigned char)To8bit(m_value); } -#ifdef wxWINT_T_IS_SEPARATE_TYPE - operator wint_t() const { return m_value; } +#if wxWCHAR_T_IS_REAL_TYPE + operator wchar_t() const { return (wchar_t)m_value; } #endif + operator int() const { return (int)m_value; } + operator unsigned int() const { return (unsigned int)m_value; } + operator long int() const { return (long int)m_value; } + operator unsigned long int() const { return (unsigned long)m_value; } + operator short int() const { return (short int)m_value; } + operator unsigned short int() const { return (unsigned short int)m_value; } // We need this operator for the "*p" part of expressions like "for ( // const_iterator p = begin() + nStart; *p; ++p )". In this case, @@ -114,22 +111,25 @@ public: // operator unspecified_bool_type() would only makes the ambiguity worse.) operator bool() const { return m_value != 0; } bool operator!() const { return !((bool)*this); } -#if (defined(__VISUALC__) && __VISUALC__ < 1400) || \ - defined(__DIGITALMARS__) || defined(__BORLANDC__) - // We need this for VC++ < 8 or DigitalMars and expressions like - // "str[0] && *p": + + // And this one is needed by some (not all, but not using ifdefs makes the + // code easier) compilers to parse "str[0] && *p" successfully bool operator&&(bool v) const { return (bool)*this && v; } -#endif // Assignment operators: - wxUniChar& operator=(const wxUniChar& c) { m_value = c.m_value; return *this; } + wxUniChar& operator=(const wxUniChar& c) { if (&c != this) m_value = c.m_value; return *this; } + wxUniChar& operator=(const wxUniCharRef& c); wxUniChar& operator=(char c) { m_value = From8bit(c); return *this; } wxUniChar& operator=(unsigned char c) { m_value = From8bit((char)c); return *this; } +#if wxWCHAR_T_IS_REAL_TYPE wxUniChar& operator=(wchar_t c) { m_value = c; return *this; } - wxUniChar& operator=(int c) { m_value = c; return *this; } -#ifdef wxWINT_T_IS_SEPARATE_TYPE - wxUniChar& operator=(wint_t c) { m_value = c; return *this; } #endif + wxUniChar& operator=(int c) { m_value = c; return *this; } + wxUniChar& operator=(unsigned int c) { m_value = c; return *this; } + wxUniChar& operator=(long int c) { m_value = c; return *this; } + wxUniChar& operator=(unsigned long int c) { m_value = c; return *this; } + wxUniChar& operator=(short int c) { m_value = c; return *this; } + wxUniChar& operator=(unsigned short int c) { m_value = c; return *this; } // Comparison operators: @@ -138,9 +138,13 @@ public: bool operator op(const wxUniChar& c) const { return m_value op c.m_value; }\ bool operator op(char c) const { return m_value op From8bit(c); } \ bool operator op(unsigned char c) const { return m_value op From8bit((char)c); } \ - bool operator op(wchar_t c) const { return m_value op (value_type)c; } \ + wxIF_WCHAR_T_TYPE( bool operator op(wchar_t c) const { return m_value op (value_type)c; } ) \ bool operator op(int c) const { return m_value op (value_type)c; } \ - wxIF_WINT_T_TYPE( bool operator op(wint_t c) const { return m_value op (value_type)c; } ) + bool operator op(unsigned int c) const { return m_value op (value_type)c; } \ + bool operator op(short int c) const { return m_value op (value_type)c; } \ + bool operator op(unsigned short int c) const { return m_value op (value_type)c; } \ + bool operator op(long int c) const { return m_value op (value_type)c; } \ + bool operator op(unsigned long int c) const { return m_value op (value_type)c; } wxFOR_ALL_COMPARISONS(wxDEFINE_UNICHAR_OPERATOR) @@ -151,13 +155,39 @@ public: int operator-(char c) const { return m_value - From8bit(c); } int operator-(unsigned char c) const { return m_value - From8bit((char)c); } int operator-(wchar_t c) const { return m_value - (value_type)c; } -#ifdef wxWINT_T_IS_SEPARATE_TYPE - int operator-(wint_t c) const { return m_value - (value_type)c; } -#endif + private: - static value_type From8bit(char c); - static char To8bit(value_type c); + // notice that we implement these functions inline for 7-bit ASCII + // characters purely for performance reasons + static value_type From8bit(char c) + { +#if wxUSE_UNICODE + if ( (unsigned char)c < 0x80 ) + return c; + + return FromHi8bit(c); +#else + return c; +#endif + } + + static char To8bit(value_type c) + { +#if wxUSE_UNICODE + if ( c < 0x80 ) + return wx_truncate_cast(char, c); + + return ToHi8bit(c); +#else + return c; +#endif + } + + // helpers of the functions above called to deal with non-ASCII chars + static value_type FromHi8bit(char c); + static char ToHi8bit(value_type v); + static bool GetAsHi8bit(value_type v, char *c); private: value_type m_value; @@ -175,7 +205,7 @@ private: // create the reference #if wxUSE_UNICODE_UTF8 - wxUniCharRef(wxStringIteratorNode& node, iterator pos) : m_node(node), m_pos(pos) {} + wxUniCharRef(wxString& str, iterator pos) : m_str(str), m_pos(pos) {} #else wxUniCharRef(iterator pos) : m_pos(pos) {} #endif @@ -187,8 +217,8 @@ public: // that must be used explicitly (this is more than using 'explicit' // keyword on ctor!): #if wxUSE_UNICODE_UTF8 - static wxUniCharRef CreateForString(wxStringIteratorNode& node, iterator pos) - { return wxUniCharRef(node, pos); } + static wxUniCharRef CreateForString(wxString& str, iterator pos) + { return wxUniCharRef(str, pos); } #else static wxUniCharRef CreateForString(iterator pos) { return wxUniCharRef(pos); } @@ -201,6 +231,7 @@ public: #endif // wxUSE_UNICODE_UTF8 bool IsAscii() const { return UniChar().IsAscii(); } + bool GetAsChar(char *c) const { return UniChar().GetAsChar(c); } // Assignment operators: #if wxUSE_UNICODE_UTF8 @@ -210,35 +241,37 @@ public: #endif wxUniCharRef& operator=(const wxUniCharRef& c) - { return *this = c.UniChar(); } + { if (&c != this) *this = c.UniChar(); return *this; } wxUniCharRef& operator=(char c) { return *this = wxUniChar(c); } wxUniCharRef& operator=(unsigned char c) { return *this = wxUniChar(c); } +#if wxWCHAR_T_IS_REAL_TYPE wxUniCharRef& operator=(wchar_t c) { return *this = wxUniChar(c); } - wxUniCharRef& operator=(int c) { return *this = wxUniChar(c); } -#ifdef wxWINT_T_IS_SEPARATE_TYPE - wxUniCharRef& operator=(wint_t c) { return *this = wxUniChar(c); } #endif + wxUniCharRef& operator=(int c) { return *this = wxUniChar(c); } + wxUniCharRef& operator=(unsigned int c) { return *this = wxUniChar(c); } + wxUniCharRef& operator=(short int c) { return *this = wxUniChar(c); } + wxUniCharRef& operator=(unsigned short int c) { return *this = wxUniChar(c); } + wxUniCharRef& operator=(long int c) { return *this = wxUniChar(c); } + wxUniCharRef& operator=(unsigned long int c) { return *this = wxUniChar(c); } // Conversions to the same types as wxUniChar is convertible too: operator char() const { return UniChar(); } - operator int() const { return UniChar(); } operator unsigned char() const { return UniChar(); } +#if wxWCHAR_T_IS_REAL_TYPE operator wchar_t() const { return UniChar(); } -#ifdef wxWINT_T_IS_SEPARATE_TYPE - operator wint_t() const { return UniChar(); } #endif -#ifndef wxWCHAR_T_IS_UINT + operator int() const { return UniChar(); } operator unsigned int() const { return UniChar(); } -#endif + operator short int() const { return UniChar(); } + operator unsigned short int() const { return UniChar(); } + operator long int() const { return UniChar(); } + operator unsigned long int() const { return UniChar(); } // see wxUniChar::operator bool etc. for explanation operator bool() const { return (bool)UniChar(); } bool operator!() const { return !UniChar(); } -#if (defined(__VISUALC__) && __VISUALC__ < 1400) || \ - defined(__DIGITALMARS__) || defined(__BORLANDC__) bool operator&&(bool v) const { return UniChar() && v; } -#endif // Comparison operators: #define wxDEFINE_UNICHARREF_OPERATOR(op) \ @@ -246,9 +279,13 @@ public: bool operator op(const wxUniChar& c) const { return UniChar() op c; } \ bool operator op(char c) const { return UniChar() op c; } \ bool operator op(unsigned char c) const { return UniChar() op c; } \ - bool operator op(wchar_t c) const { return UniChar() op c; } \ + wxIF_WCHAR_T_TYPE( bool operator op(wchar_t c) const { return UniChar() op c; } ) \ bool operator op(int c) const { return UniChar() op c; } \ - wxIF_WINT_T_TYPE( bool operator op(wint_t c) const { return UniChar() op c; } ) + bool operator op(unsigned int c) const { return UniChar() op c; } \ + bool operator op(short int c) const { return UniChar() op c; } \ + bool operator op(unsigned short int c) const { return UniChar() op c; } \ + bool operator op(long int c) const { return UniChar() op c; } \ + bool operator op(unsigned long int c) const { return UniChar() op c; } wxFOR_ALL_COMPARISONS(wxDEFINE_UNICHARREF_OPERATOR) @@ -260,9 +297,6 @@ public: int operator-(char c) const { return UniChar() - c; } int operator-(unsigned char c) const { return UniChar() - c; } int operator-(wchar_t c) const { return UniChar() - c; } -#ifdef wxWINT_T_IS_SEPARATE_TYPE - int operator-(wint_t c) const { return UniChar() - c; } -#endif private: #if wxUSE_UNICODE_UTF8 @@ -271,12 +305,12 @@ private: wxUniChar UniChar() const { return *m_pos; } #endif - friend class WXDLLIMPEXP_BASE wxUniChar; + friend class WXDLLIMPEXP_FWD_BASE wxUniChar; private: // reference to the string and pointer to the character in string #if wxUSE_UNICODE_UTF8 - wxStringIteratorNode& m_node; + wxString& m_str; #endif iterator m_pos; }; @@ -286,6 +320,12 @@ inline wxUniChar::wxUniChar(const wxUniCharRef& c) m_value = c.UniChar().m_value; } +inline wxUniChar& wxUniChar::operator=(const wxUniCharRef& c) +{ + m_value = c.UniChar().m_value; + return *this; +} + // Comparison operators for the case when wxUniChar(Ref) is the second operand // implemented in terms of member comparison functions @@ -297,11 +337,6 @@ wxDEFINE_COMPARISONS(char, const wxUniCharRef&, wxCMP_REVERSE) wxDEFINE_COMPARISONS(wchar_t, const wxUniChar&, wxCMP_REVERSE) wxDEFINE_COMPARISONS(wchar_t, const wxUniCharRef&, wxCMP_REVERSE) -#ifdef wxWINT_T_IS_SEPARATE_TYPE -wxDEFINE_COMPARISONS(wint_t, const wxUniChar&, wxCMP_REVERSE) -wxDEFINE_COMPARISONS(wint_t, const wxUniCharRef&, wxCMP_REVERSE) -#endif - wxDEFINE_COMPARISONS(const wxUniChar&, const wxUniCharRef&, wxCMP_REVERSE) #undef wxCMP_REVERSE @@ -310,8 +345,5 @@ wxDEFINE_COMPARISONS(const wxUniChar&, const wxUniCharRef&, wxCMP_REVERSE) inline int operator-(char c1, const wxUniCharRef& c2) { return -(c2 - c1); } inline int operator-(const wxUniChar& c1, const wxUniCharRef& c2) { return -(c2 - c1); } inline int operator-(wchar_t c1, const wxUniCharRef& c2) { return -(c2 - c1); } -#ifdef wxWINT_T_IS_SEPARATE_TYPE -inline int operator-(wint_t c1, const wxUniCharRef& c2) { return -(c2 - c1); } -#endif #endif /* _WX_UNICHAR_H_ */