X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2523e9b70044baa92a1c63ffdfe179c28ad53536..d642db66a5efc82d374b813022c72ba88bc50839:/include/wx/strvararg.h diff --git a/include/wx/strvararg.h b/include/wx/strvararg.h index 459c0ffeec..8f2d16551e 100644 --- a/include/wx/strvararg.h +++ b/include/wx/strvararg.h @@ -18,12 +18,22 @@ #include "wx/cpp.h" #include "wx/chartype.h" -#include "wx/wxcrt.h" #include "wx/strconv.h" #include "wx/buffer.h" +#include "wx/unichar.h" + +#if defined(HAVE_TYPE_TRAITS) + #include +#elif defined(HAVE_TR1_TYPE_TRAITS) + #ifdef __VISUALC__ + #include + #else + #include + #endif +#endif -class WXDLLIMPEXP_BASE wxCStrData; -class WXDLLIMPEXP_BASE wxString; +class WXDLLIMPEXP_FWD_BASE wxCStrData; +class WXDLLIMPEXP_FWD_BASE wxString; // ---------------------------------------------------------------------------- // WX_DEFINE_VARARG_FUNC* macros @@ -47,6 +57,11 @@ class WXDLLIMPEXP_BASE wxString; // * wchar_t* if wxUSE_UNICODE_WCHAR or if wxUSE_UNICODE_UTF8 and the current // locale is not UTF-8 // +// Note that wxFormatString *must* be used for the format parameter of these +// functions, otherwise the implementation won't work correctly. Furthermore, +// it must be passed by value, not reference, because it's modified by the +// vararg templates internally. +// // Parameters: // [ there are examples in square brackets showing values of the parameters // for the wxFprintf() wrapper for fprintf() function with the following @@ -70,33 +85,25 @@ class WXDLLIMPEXP_BASE wxString; // if wxUSE_UNICODE_UTF8 and running under UTF-8 locale // (ignored otherwise) [fprintf] // -#define WX_DEFINE_VARARG_FUNC2(rettype, name, numfixed, fixed, impl, implUtf8)\ +#define WX_DEFINE_VARARG_FUNC(rettype, name, numfixed, fixed, impl, implUtf8) \ _WX_VARARG_DEFINE_FUNC_N0(rettype, name, impl, implUtf8, numfixed, fixed) \ - WX_DEFINE_VARARG_FUNC2_SANS_N0(rettype, name, numfixed, fixed, impl, implUtf8) + WX_DEFINE_VARARG_FUNC_SANS_N0(rettype, name, numfixed, fixed, impl, implUtf8) // ditto, but without the version with 0 template/vararg arguments -#define WX_DEFINE_VARARG_FUNC2_SANS_N0(rettype, name, \ +#define WX_DEFINE_VARARG_FUNC_SANS_N0(rettype, name, \ numfixed, fixed, impl, implUtf8) \ _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ _WX_VARARG_DEFINE_FUNC, \ rettype, name, impl, implUtf8, numfixed, fixed) -// like WX_DEFINE_VARARG_FUNC2, but for impl=implUtf8: -#define WX_DEFINE_VARARG_FUNC(rettype, name, numfixed, fixed, impl) \ - WX_DEFINE_VARARG_FUNC2(rettype, name, numfixed, fixed, impl, impl) - -// Like WX_DEFINE_VARARG_FUNC2, but for variadic functions that don't return +// Like WX_DEFINE_VARARG_FUNC, but for variadic functions that don't return // a value. -#define WX_DEFINE_VARARG_FUNC_VOID2(name, numfixed, fixed, impl, implUtf8) \ +#define WX_DEFINE_VARARG_FUNC_VOID(name, numfixed, fixed, impl, implUtf8) \ _WX_VARARG_DEFINE_FUNC_VOID_N0(name, impl, implUtf8, numfixed, fixed) \ _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ _WX_VARARG_DEFINE_FUNC_VOID, \ void, name, impl, implUtf8, numfixed, fixed) -// like WX_DEFINE_VARARG_FUNC_VOID2, but for impl=implUtf8: -#define WX_DEFINE_VARARG_FUNC_VOID(name, numfixed, fixed, impl) \ - WX_DEFINE_VARARG_FUNC_VOID2(name, numfixed, fixed, impl, impl) - // Like WX_DEFINE_VARARG_FUNC_VOID, but instead of wrapping an implementation // function, does nothing in defined functions' bodies. // @@ -105,33 +112,352 @@ class WXDLLIMPEXP_BASE wxString; _WX_VARARG_DEFINE_FUNC_NOP_N0(name, numfixed, fixed) \ _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ _WX_VARARG_DEFINE_FUNC_NOP, \ - void, name, dummy, numfixed, fixed) + void, name, dummy, dummy, numfixed, fixed) // Like WX_DEFINE_VARARG_FUNC_CTOR, but for defining template constructors -#define WX_DEFINE_VARARG_FUNC_CTOR(name, numfixed, fixed, impl) \ - _WX_VARARG_DEFINE_FUNC_CTOR_N0(name, impl, impl, numfixed, fixed) \ +#define WX_DEFINE_VARARG_FUNC_CTOR(name, numfixed, fixed, impl, implUtf8) \ + _WX_VARARG_DEFINE_FUNC_CTOR_N0(name, impl, implUtf8, numfixed, fixed) \ _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ _WX_VARARG_DEFINE_FUNC_CTOR, \ - void, name, impl, impl, numfixed, fixed) + void, name, impl, implUtf8, numfixed, fixed) + + +// ---------------------------------------------------------------------------- +// wxFormatString +// ---------------------------------------------------------------------------- + +// This class must be used for format string argument of the functions +// defined using WX_DEFINE_VARARG_FUNC_* macros. It converts the string to +// char* or wchar_t* for passing to implementation function efficiently (i.e. +// without keeping the converted string in memory for longer than necessary, +// like c_str()). It also converts format string to the correct form that +// accounts for string changes done by wxArgNormalizer<> +// +// Note that this class can _only_ be used for function arguments! +class WXDLLIMPEXP_BASE wxFormatString +{ +public: + wxFormatString(const char *str) + : m_char(wxScopedCharBuffer::CreateNonOwned(str)), m_str(NULL), m_cstr(NULL) {} + wxFormatString(const wchar_t *str) + : m_wchar(wxScopedWCharBuffer::CreateNonOwned(str)), m_str(NULL), m_cstr(NULL) {} + wxFormatString(const wxString& str) + : m_str(&str), m_cstr(NULL) {} + wxFormatString(const wxCStrData& str) + : m_str(NULL), m_cstr(&str) {} + wxFormatString(const wxScopedCharBuffer& str) + : m_char(str), m_str(NULL), m_cstr(NULL) {} + wxFormatString(const wxScopedWCharBuffer& str) + : m_wchar(str), m_str(NULL), m_cstr(NULL) {} + + // Possible argument types. These are or-combinable for wxASSERT_ARG_TYPE + // convenience. Some of the values are or-combined with another value, this + // expresses "supertypes" for use with wxASSERT_ARG_TYPE masks. For example, + // a char* string is also a pointer and an integer is also a char. + enum ArgumentType + { + Arg_Char = 0x0001, // character as char %c + Arg_Pointer = 0x0002, // %p + Arg_String = 0x0004 | Arg_Pointer, // any form of string (%s and %p too) + + Arg_Int = 0x0008 | Arg_Char, // (ints can be used with %c) +#if SIZEOF_INT == SIZEOF_LONG + Arg_LongInt = Arg_Int, +#else + Arg_LongInt = 0x0010, +#endif +#if defined(SIZEOF_LONG_LONG) && SIZEOF_LONG_LONG == SIZEOF_LONG + Arg_LongLongInt = Arg_LongInt, +#elif defined(wxLongLong_t) + Arg_LongLongInt = 0x0020, +#endif + + Arg_Double = 0x0040, + Arg_LongDouble = 0x0080, + +#if defined(wxSIZE_T_IS_UINT) + Arg_Size_t = Arg_Int, +#elif defined(wxSIZE_T_IS_ULONG) + Arg_Size_t = Arg_LongInt, +#elif defined(SIZEOF_LONG_LONG) && SIZEOF_SIZE_T == SIZEOF_LONG_LONG + Arg_Size_t = Arg_LongLongInt, +#else + Arg_Size_t = 0x0100, +#endif + + Arg_IntPtr = 0x0200, // %n -- store # of chars written + Arg_ShortIntPtr = 0x0400, + Arg_LongIntPtr = 0x0800, + + Arg_Unknown = 0x8000 // unrecognized specifier (likely error) + }; + + // returns the type of format specifier for n-th variadic argument (this is + // not necessarily n-th format specifier if positional specifiers are used); + // called by wxArgNormalizer<> specializations to get information about + // n-th variadic argument desired representation + ArgumentType GetArgumentType(unsigned n) const; + + // returns the value passed to ctor, only converted to wxString, similarly + // to other InputAsXXX() methods + wxString InputAsString() const; + +#if !wxUSE_UNICODE_WCHAR + operator const char*() const + { return const_cast(this)->AsChar(); } +private: + // InputAsChar() returns the value passed to ctor, only converted + // to char, while AsChar() takes the string returned by InputAsChar() + // and does format string conversion on it as well (and similarly for + // ..AsWChar() below) + const char* InputAsChar(); + const char* AsChar(); + wxScopedCharBuffer m_convertedChar; +#endif // !wxUSE_UNICODE_WCHAR + +#if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY +public: + operator const wchar_t*() const + { return const_cast(this)->AsWChar(); } +private: + const wchar_t* InputAsWChar(); + const wchar_t* AsWChar(); + wxScopedWCharBuffer m_convertedWChar; +#endif // wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY + +private: + wxScopedCharBuffer m_char; + wxScopedWCharBuffer m_wchar; + + // NB: we can use a pointer here, because wxFormatString is only used + // as function argument, so it has shorter life than the string + // passed to the ctor + const wxString * const m_str; + const wxCStrData * const m_cstr; + + wxDECLARE_NO_ASSIGN_CLASS(wxFormatString); +}; + +// these two helper classes are used to find wxFormatString argument among fixed +// arguments passed to a vararg template +struct wxFormatStringArgument +{ + wxFormatStringArgument(const wxFormatString *s = NULL) : m_str(s) {} + const wxFormatString *m_str; + + // overriding this operator allows us to reuse _WX_VARARG_JOIN macro + wxFormatStringArgument operator,(const wxFormatStringArgument& a) const + { + wxASSERT_MSG( m_str == NULL || a.m_str == NULL, + "can't have two format strings in vararg function" ); + return wxFormatStringArgument(m_str ? m_str : a.m_str); + } + + operator const wxFormatString*() const { return m_str; } +}; + +template +struct wxFormatStringArgumentFinder +{ + static wxFormatStringArgument find(T) + { + // by default, arguments are not format strings, so return "not found" + return wxFormatStringArgument(); + } +}; + +template<> +struct wxFormatStringArgumentFinder +{ + static wxFormatStringArgument find(const wxFormatString& arg) + { return wxFormatStringArgument(&arg); } +}; + +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + +// avoid passing big objects by value to wxFormatStringArgumentFinder::find() +// (and especially wx[W]CharBuffer with its auto_ptr<> style semantics!): +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + +template<> +struct wxFormatStringArgumentFinder + : public wxFormatStringArgumentFinder {}; + // ---------------------------------------------------------------------------- // wxArgNormalizer* converters // ---------------------------------------------------------------------------- +#if wxDEBUG_LEVEL + // Check that the format specifier for index-th argument in 'fmt' has + // the correct type (one of wxFormatString::Arg_XXX or-combination in + // 'expected_mask'). + #define wxASSERT_ARG_TYPE(fmt, index, expected_mask) \ + wxSTATEMENT_MACRO_BEGIN \ + if ( !fmt ) \ + break; \ + const int argtype = fmt->GetArgumentType(index); \ + wxASSERT_MSG( (argtype & (expected_mask)) == argtype, \ + "format specifier doesn't match argument type" ); \ + wxSTATEMENT_MACRO_END +#else + // Just define it to suppress "unused parameter" warnings for the + // parameters which we don't use otherwise + #define wxASSERT_ARG_TYPE(fmt, index, expected_mask) \ + wxUnusedVar(fmt); \ + wxUnusedVar(index) +#endif // wxDEBUG_LEVEL/!wxDEBUG_LEVEL + + +#if defined(HAVE_TYPE_TRAITS) || defined(HAVE_TR1_TYPE_TRAITS) + +// Note: this type is misnamed, so that the error message is easier to +// understand (no error happens for enums, because the IsEnum=true case is +// specialized). +template +struct wxFormatStringSpecifierNonPodType {}; + +template<> +struct wxFormatStringSpecifierNonPodType +{ + enum { value = wxFormatString::Arg_Int }; +}; + +template +struct wxFormatStringSpecifier +{ +#ifdef HAVE_TYPE_TRAITS + typedef std::is_enum is_enum; +#elif defined HAVE_TR1_TYPE_TRAITS + typedef std::tr1::is_enum is_enum; +#endif + enum { value = wxFormatStringSpecifierNonPodType::value }; +}; + +#else // !HAVE_(TR1_)TYPE_TRAITS + +template +struct wxFormatStringSpecifier +{ + // We can't detect enums without is_enum, so the only thing we can + // do is to accept unknown types. However, the only acceptable unknown + // types still are enums, which are promoted to ints, so return Arg_Int + // here. This will at least catch passing of non-POD types through ... at + // runtime. + // + // Furthermore, if the compiler doesn't have partial template + // specialization, we didn't cover pointers either. +#ifdef HAVE_PARTIAL_SPECIALIZATION + enum { value = wxFormatString::Arg_Int }; +#else + enum { value = wxFormatString::Arg_Int | wxFormatString::Arg_Pointer }; +#endif +}; + +#endif // HAVE_TR1_TYPE_TRAITS/!HAVE_TR1_TYPE_TRAITS + + +#ifdef HAVE_PARTIAL_SPECIALIZATION +template +struct wxFormatStringSpecifier +{ + enum { value = wxFormatString::Arg_Pointer }; +}; + +template +struct wxFormatStringSpecifier +{ + enum { value = wxFormatString::Arg_Pointer }; +}; +#endif // !HAVE_PARTIAL_SPECIALIZATION + + +#define wxFORMAT_STRING_SPECIFIER(T, arg) \ + template<> struct wxFormatStringSpecifier \ + { \ + enum { value = arg }; \ + }; + +wxFORMAT_STRING_SPECIFIER(bool, wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(int, wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(unsigned int, wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(short int, wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(short unsigned int, wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(long int, wxFormatString::Arg_LongInt) +wxFORMAT_STRING_SPECIFIER(long unsigned int, wxFormatString::Arg_LongInt) +#ifdef wxLongLong_t +wxFORMAT_STRING_SPECIFIER(wxLongLong_t, wxFormatString::Arg_LongLongInt) +wxFORMAT_STRING_SPECIFIER(wxULongLong_t, wxFormatString::Arg_LongLongInt) +#endif +wxFORMAT_STRING_SPECIFIER(float, wxFormatString::Arg_Double) +wxFORMAT_STRING_SPECIFIER(double, wxFormatString::Arg_Double) +wxFORMAT_STRING_SPECIFIER(long double, wxFormatString::Arg_LongDouble) + +#if wxWCHAR_T_IS_REAL_TYPE +wxFORMAT_STRING_SPECIFIER(wchar_t, wxFormatString::Arg_Char | wxFormatString::Arg_Int) +#endif + +#if !wxUSE_UNICODE +wxFORMAT_STRING_SPECIFIER(char, wxFormatString::Arg_Char | wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(signed char, wxFormatString::Arg_Char | wxFormatString::Arg_Int) +wxFORMAT_STRING_SPECIFIER(unsigned char, wxFormatString::Arg_Char | wxFormatString::Arg_Int) +#endif + +wxFORMAT_STRING_SPECIFIER(char*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(unsigned char*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(signed char*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(const char*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(const unsigned char*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(const signed char*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(wchar_t*, wxFormatString::Arg_String) +wxFORMAT_STRING_SPECIFIER(const wchar_t*, wxFormatString::Arg_String) + +wxFORMAT_STRING_SPECIFIER(int*, wxFormatString::Arg_IntPtr | wxFormatString::Arg_Pointer) +wxFORMAT_STRING_SPECIFIER(short int*, wxFormatString::Arg_ShortIntPtr | wxFormatString::Arg_Pointer) +wxFORMAT_STRING_SPECIFIER(long int*, wxFormatString::Arg_LongIntPtr | wxFormatString::Arg_Pointer) + +#undef wxFORMAT_STRING_SPECIFIER + + // Converts an argument passed to wxPrint etc. into standard form expected, // by wxXXX functions, e.g. all strings (wxString, char*, wchar_t*) are // converted into wchar_t* or char* depending on the build. template struct wxArgNormalizer { - wxArgNormalizer(const T& value) : m_value(value) {} + // Ctor. 'value' is the value passed as variadic argument, 'fmt' is pointer + // to printf-like format string or NULL if the variadic function doesn't + // use format string and 'index' is index of 'value' in variadic arguments + // list (starting at 1) + wxArgNormalizer(T value, + const wxFormatString *fmt, unsigned index) + : m_value(value) + { + wxASSERT_ARG_TYPE( fmt, index, wxFormatStringSpecifier::value ); + } // Returns the value in a form that can be safely passed to real vararg // functions. In case of strings, this is char* in ANSI build and wchar_t* // in Unicode build. - const T& get() const { return m_value; } + T get() const { return m_value; } - const T& m_value; + T m_value; }; // normalizer for passing arguments to functions working with wchar_t* (and @@ -141,7 +467,9 @@ struct wxArgNormalizer template struct wxArgNormalizerWchar : public wxArgNormalizer { - wxArgNormalizerWchar(const T& value) : wxArgNormalizer(value) {} + wxArgNormalizerWchar(T value, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizer(value, fmt, index) {} }; #endif // !wxUSE_UTF8_LOCALE_ONLY @@ -151,7 +479,9 @@ struct wxArgNormalizerWchar : public wxArgNormalizer template struct wxArgNormalizerUtf8 : public wxArgNormalizer { - wxArgNormalizerUtf8(const T& value) : wxArgNormalizer(value) {} + wxArgNormalizerUtf8(T value, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizer(value, fmt, index) {} }; #define wxArgNormalizerNative wxArgNormalizerUtf8 @@ -170,10 +500,16 @@ struct wxArgNormalizerWchar : public wxArgNormalizer template struct wxArgNormalizerWithBuffer { - typedef wxCharTypeBuffer CharBuffer; + typedef wxScopedCharTypeBuffer CharBuffer; wxArgNormalizerWithBuffer() {} - wxArgNormalizerWithBuffer(const CharBuffer& buf) : m_value(buf) {} + wxArgNormalizerWithBuffer(const CharBuffer& buf, + const wxFormatString *fmt, + unsigned index) + : m_value(buf) + { + wxASSERT_ARG_TYPE( fmt, index, wxFormatString::Arg_String ); + } const CharType *get() const { return m_value; } @@ -184,7 +520,14 @@ struct wxArgNormalizerWithBuffer template<> struct WXDLLIMPEXP_BASE wxArgNormalizerNative { - wxArgNormalizerNative(const wxString& s) : m_value(s) {} + wxArgNormalizerNative(const wxString& s, + const wxFormatString *fmt, + unsigned index) + : m_value(s) + { + wxASSERT_ARG_TYPE( fmt, index, wxFormatString::Arg_String ); + } + const wxStringCharType *get() const; const wxString& m_value; @@ -194,7 +537,14 @@ struct WXDLLIMPEXP_BASE wxArgNormalizerNative template<> struct WXDLLIMPEXP_BASE wxArgNormalizerNative { - wxArgNormalizerNative(const wxCStrData& value) : m_value(value) {} + wxArgNormalizerNative(const wxCStrData& value, + const wxFormatString *fmt, + unsigned index) + : m_value(value) + { + wxASSERT_ARG_TYPE( fmt, index, wxFormatString::Arg_String ); + } + const wxStringCharType *get() const; const wxCStrData& m_value; @@ -206,14 +556,16 @@ template<> struct WXDLLIMPEXP_BASE wxArgNormalizerWchar : public wxArgNormalizerWithBuffer { - wxArgNormalizerWchar(const wxString& s); + wxArgNormalizerWchar(const wxString& s, + const wxFormatString *fmt, unsigned index); }; template<> struct WXDLLIMPEXP_BASE wxArgNormalizerWchar : public wxArgNormalizerWithBuffer { - wxArgNormalizerWchar(const wxCStrData& s); + wxArgNormalizerWchar(const wxCStrData& s, + const wxFormatString *fmt, unsigned index); }; #endif // wxUSE_UNICODE_UTF8 && !wxUSE_UTF8_LOCALE_ONLY @@ -226,8 +578,9 @@ template<> struct wxArgNormalizerWchar : public wxArgNormalizerWithBuffer { - wxArgNormalizerWchar(const char* s) - : wxArgNormalizerWithBuffer(wxConvLibc.cMB2WC(s)) {} + wxArgNormalizerWchar(const char* s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerWithBuffer(wxConvLibc.cMB2WC(s), fmt, index) {} }; #elif wxUSE_UNICODE_UTF8 @@ -236,24 +589,34 @@ template<> struct wxArgNormalizerUtf8 : public wxArgNormalizerWithBuffer { - wxArgNormalizerUtf8(const wchar_t* s) - : wxArgNormalizerWithBuffer(wxConvUTF8.cWC2MB(s)) {} + wxArgNormalizerUtf8(const wchar_t* s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerWithBuffer(wxConvUTF8.cWC2MB(s), fmt, index) {} }; template<> struct wxArgNormalizerUtf8 : public wxArgNormalizerWithBuffer { - wxArgNormalizerUtf8(const char* s) + wxArgNormalizerUtf8(const char* s, + const wxFormatString *fmt, + unsigned index) { - // FIXME-UTF8: optimize this if current locale is UTF-8 one - - // convert to widechar string first: - wxWCharBuffer buf(wxConvLibc.cMB2WC(s)); - - // then to UTF-8: - if ( buf ) - m_value = wxConvUTF8.cWC2MB(buf); + wxASSERT_ARG_TYPE( fmt, index, wxFormatString::Arg_String ); + + if ( wxLocaleIsUtf8 ) + { + m_value = wxScopedCharBuffer::CreateNonOwned(s); + } + else + { + // convert to widechar string first: + wxScopedWCharBuffer buf(wxConvLibc.cMB2WC(s)); + + // then to UTF-8: + if ( buf ) + m_value = wxConvUTF8.cWC2MB(buf); + } } }; @@ -263,8 +626,9 @@ template<> struct wxArgNormalizerWchar : public wxArgNormalizerWithBuffer { - wxArgNormalizerWchar(const char* s) - : wxArgNormalizerWithBuffer(wxConvLibc.cMB2WC(s)) {} + wxArgNormalizerWchar(const char* s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerWithBuffer(wxConvLibc.cMB2WC(s), fmt, index) {} }; #endif // !wxUSE_UTF8_LOCALE_ONLY @@ -274,8 +638,9 @@ template<> struct wxArgNormalizerWchar : public wxArgNormalizerWithBuffer { - wxArgNormalizerWchar(const wchar_t* s) - : wxArgNormalizerWithBuffer(wxConvLibc.cWC2MB(s)) {} + wxArgNormalizerWchar(const wchar_t* s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerWithBuffer(wxConvLibc.cWC2MB(s), fmt, index) {} }; #endif // wxUSE_UNICODE_WCHAR/wxUSE_UNICODE_UTF8/ANSI @@ -303,7 +668,9 @@ struct wxArgNormalizerWchar template<> \ struct Normalizer : public Normalizer \ { \ - Normalizer(BaseT value) : Normalizer(value) {} \ + Normalizer(BaseT value, \ + const wxFormatString *fmt, unsigned index) \ + : Normalizer(value, fmt, index) {} \ } // non-reference versions of specializations for string objects @@ -315,14 +682,150 @@ WX_ARG_NORMALIZER_FORWARD(char*, const char*); WX_ARG_NORMALIZER_FORWARD(wchar_t*, const wchar_t*); // versions for passing wx[W]CharBuffer: +WX_ARG_NORMALIZER_FORWARD(wxScopedCharBuffer, const char*); +WX_ARG_NORMALIZER_FORWARD(const wxScopedCharBuffer&, const char*); +WX_ARG_NORMALIZER_FORWARD(wxScopedWCharBuffer, const wchar_t*); +WX_ARG_NORMALIZER_FORWARD(const wxScopedWCharBuffer&, const wchar_t*); WX_ARG_NORMALIZER_FORWARD(wxCharBuffer, const char*); WX_ARG_NORMALIZER_FORWARD(const wxCharBuffer&, const char*); WX_ARG_NORMALIZER_FORWARD(wxWCharBuffer, const wchar_t*); WX_ARG_NORMALIZER_FORWARD(const wxWCharBuffer&, const wchar_t*); +// versions for std::[w]string: +#if wxUSE_STD_STRING + +#include "wx/stringimpl.h" + +#if !wxUSE_UTF8_LOCALE_ONLY +template<> +struct wxArgNormalizerWchar + : public wxArgNormalizerWchar +{ + wxArgNormalizerWchar(const std::string& s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerWchar(s.c_str(), fmt, index) {} +}; + +template<> +struct wxArgNormalizerWchar + : public wxArgNormalizerWchar +{ + wxArgNormalizerWchar(const wxStdWideString& s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerWchar(s.c_str(), fmt, index) {} +}; +#endif // !wxUSE_UTF8_LOCALE_ONLY + +#if wxUSE_UNICODE_UTF8 +template<> +struct wxArgNormalizerUtf8 + : public wxArgNormalizerUtf8 +{ + wxArgNormalizerUtf8(const std::string& s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerUtf8(s.c_str(), fmt, index) {} +}; + +template<> +struct wxArgNormalizerUtf8 + : public wxArgNormalizerUtf8 +{ + wxArgNormalizerUtf8(const wxStdWideString& s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerUtf8(s.c_str(), fmt, index) {} +}; +#endif // wxUSE_UNICODE_UTF8 + +WX_ARG_NORMALIZER_FORWARD(std::string, const std::string&); +WX_ARG_NORMALIZER_FORWARD(wxStdWideString, const wxStdWideString&); + +#endif // wxUSE_STD_STRING + + +// versions for wxUniChar, wxUniCharRef: +// (this is same for UTF-8 and Wchar builds, we just convert to wchar_t) +template<> +struct wxArgNormalizer : public wxArgNormalizer +{ + wxArgNormalizer(const wxUniChar& s, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizer(s.GetValue(), fmt, index) {} +}; + +// for wchar_t, default handler does the right thing + +// char has to be treated differently in Unicode builds: a char argument may +// be used either for a character value (which should be converted into +// wxUniChar) or as an integer value (which should be left as-is). We take +// advantage of the fact that both char and wchar_t are converted into int +// in variadic arguments here. +#if wxUSE_UNICODE +template +struct wxArgNormalizerNarrowChar +{ + wxArgNormalizerNarrowChar(T value, + const wxFormatString *fmt, unsigned index) + { + wxASSERT_ARG_TYPE( fmt, index, + wxFormatString::Arg_Char | wxFormatString::Arg_Int ); + + // FIXME-UTF8: which one is better default in absence of fmt string + // (i.e. when used like e.g. Foo("foo", "bar", 'c', NULL)? + if ( !fmt || fmt->GetArgumentType(index) == wxFormatString::Arg_Char ) + m_value = wx_truncate_cast(T, wxUniChar(value).GetValue()); + else + m_value = value; + } + + int get() const { return m_value; } + + T m_value; +}; + +template<> +struct wxArgNormalizer : public wxArgNormalizerNarrowChar +{ + wxArgNormalizer(char value, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerNarrowChar(value, fmt, index) {} +}; + +template<> +struct wxArgNormalizer + : public wxArgNormalizerNarrowChar +{ + wxArgNormalizer(unsigned char value, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerNarrowChar(value, fmt, index) {} +}; + +template<> +struct wxArgNormalizer + : public wxArgNormalizerNarrowChar +{ + wxArgNormalizer(signed char value, + const wxFormatString *fmt, unsigned index) + : wxArgNormalizerNarrowChar(value, fmt, index) {} +}; + +#endif // wxUSE_UNICODE + +// convert references: +WX_ARG_NORMALIZER_FORWARD(wxUniChar, const wxUniChar&); +WX_ARG_NORMALIZER_FORWARD(const wxUniCharRef&, const wxUniChar&); +WX_ARG_NORMALIZER_FORWARD(wxUniCharRef, const wxUniChar&); +WX_ARG_NORMALIZER_FORWARD(const wchar_t&, wchar_t); + +WX_ARG_NORMALIZER_FORWARD(const char&, char); +WX_ARG_NORMALIZER_FORWARD(const unsigned char&, unsigned char); +WX_ARG_NORMALIZER_FORWARD(const signed char&, signed char); + + #undef WX_ARG_NORMALIZER_FORWARD #undef _WX_ARG_NORMALIZER_FORWARD_IMPL +// NB: Don't #undef wxASSERT_ARG_TYPE here as it's also used in wx/longlong.h. + // ---------------------------------------------------------------------------- // WX_VA_ARG_STRING // ---------------------------------------------------------------------------- @@ -446,6 +949,14 @@ private: #define _WX_VARARG_FIXED_UNUSED_EXPAND_4(t1,t2,t3,t4) \ t1 WXUNUSED(f1), t2 WXUNUSED(f2), t3 WXUNUSED(f3), t4 WXUNUSED(f4) +#define _WX_VARARG_FIXED_TYPEDEFS_1(t1) \ + typedef t1 TF1 +#define _WX_VARARG_FIXED_TYPEDEFS_2(t1,t2) \ + _WX_VARARG_FIXED_TYPEDEFS_1(t1); typedef t2 TF2 +#define _WX_VARARG_FIXED_TYPEDEFS_3(t1,t2,t3) \ + _WX_VARARG_FIXED_TYPEDEFS_2(t1,t2); typedef t3 TF3 +#define _WX_VARARG_FIXED_TYPEDEFS_4(t1,t2,t3,t4) \ + _WX_VARARG_FIXED_TYPEDEFS_3(t1,t2,t3); typedef t4 TF4 // This macro expands N-items tuple of fixed arguments types into part of // function's declaration. For example, @@ -462,6 +973,13 @@ private: #define _WX_VARARG_FIXED_UNUSED_EXPAND_IMPL(N, args) \ _WX_VARARG_FIXED_UNUSED_EXPAND_##N args +// Declarates typedefs for fixed arguments types; i-th fixed argument types +// will have TFi typedef. +#define _WX_VARARG_FIXED_TYPEDEFS(N, args) \ + _WX_VARARG_FIXED_TYPEDEFS_IMPL(N, args) +#define _WX_VARARG_FIXED_TYPEDEFS_IMPL(N, args) \ + _WX_VARARG_FIXED_TYPEDEFS_##N args + // This macro calls another macro 'm' passed as second argument 'N' times, // with its only argument set to 1..N, and concatenates the results using @@ -501,27 +1019,30 @@ private: #define _WX_VARARG_ARG(i) T##i a##i // Like _WX_VARARG_ARG_UNUSED, but outputs argument's type with WXUNUSED: -#define _WX_VARARG_ARG_UNUSED(i) T##i WXUNUSED(a##i) +#define _WX_VARARG_ARG_UNUSED(i) T##i WXUNUSED(a##i) // Generates code snippet for i-th type in vararg function's template<...>: #define _WX_VARARG_TEMPL(i) typename T##i // Generates code snippet for passing i-th argument of vararg function // wrapper to its implementation, normalizing it in the process: -#define _WX_VARARG_PASS_WCHAR(i) wxArgNormalizerWchar(a##i).get() -#define _WX_VARARG_PASS_UTF8(i) wxArgNormalizerUtf8(a##i).get() +#define _WX_VARARG_PASS_WCHAR(i) \ + wxArgNormalizerWchar(a##i, fmt, i).get() +#define _WX_VARARG_PASS_UTF8(i) \ + wxArgNormalizerUtf8(a##i, fmt, i).get() // And the same for fixed arguments, _not_ normalizing it: -// FIXME-UTF8: this works, but uses wxString's implicit conversion to wxChar* -// for the 'format' argument (which is const wxString&) _if_ the -// implementation function has C sting argument; we need to -// have wxFixedArgNormalizer here that will pass everything -// as-is except for wxString (for which wx_str() would be used), -// but OTOH, we don't want to do that if the implementation takes -// wxString argument #define _WX_VARARG_PASS_FIXED(i) f##i +#define _WX_VARARG_FIND_FMT(i) \ + (wxFormatStringArgumentFinder::find(f##i)) + +#define _WX_VARARG_FORMAT_STRING(numfixed, fixed) \ + _WX_VARARG_FIXED_TYPEDEFS(numfixed, fixed); \ + const wxFormatString *fmt = \ + (_WX_VARARG_JOIN(numfixed, _WX_VARARG_FIND_FMT)) + #if wxUSE_UNICODE_UTF8 #define _WX_VARARG_DO_CALL_UTF8(return_kw, impl, implUtf8, N, numfixed) \ return_kw implUtf8(_WX_VARARG_JOIN(numfixed, _WX_VARARG_PASS_FIXED), \ @@ -567,6 +1088,7 @@ private: rettype name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed), \ _WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \ { \ + _WX_VARARG_FORMAT_STRING(numfixed, fixed); \ _WX_VARARG_DO_CALL(return, impl, implUtf8, N, numfixed); \ } @@ -587,6 +1109,7 @@ private: void name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed), \ _WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \ { \ + _WX_VARARG_FORMAT_STRING(numfixed, fixed); \ _WX_VARARG_DO_CALL(wxEMPTY_PARAMETER_VALUE, \ impl, implUtf8, N, numfixed); \ } @@ -608,6 +1131,7 @@ private: name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed), \ _WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \ { \ + _WX_VARARG_FORMAT_STRING(numfixed, fixed); \ _WX_VARARG_DO_CALL(wxEMPTY_PARAMETER_VALUE, \ impl, implUtf8, N, numfixed); \ } @@ -633,4 +1157,67 @@ private: inline void name(_WX_VARARG_FIXED_UNUSED_EXPAND(numfixed, fixed)) \ {} + +// ---------------------------------------------------------------------------- +// workaround for OpenWatcom bug #351 +// ---------------------------------------------------------------------------- + +#ifdef __WATCOMC__ +// workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351 + +// This macro can be used to forward a 'vararg' template to another one with +// different fixed arguments types. Parameters are same as for +// WX_DEFINE_VARARG_FUNC (rettype=void can be used here), 'convfixed' is how +// to convert fixed arguments. For example, this is typical code for dealing +// with different forms of format string: +// +// WX_DEFINE_VARARG_FUNC_VOID(Printf, 1, (const wxFormatString&), +// DoPrintfWchar, DoPrintfUtf8) +// #ifdef __WATCOMC__ +// WX_VARARG_WATCOM_WORKAROUND(void, Printf, 1, (const wxString&), +// (wxFormatString(f1))) +// WX_VARARG_WATCOM_WORKAROUND(void, Printf, 1, (const char*), +// (wxFormatString(f1))) +// ... +#define WX_VARARG_WATCOM_WORKAROUND(rettype, name, numfixed, fixed, convfixed)\ + _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ + _WX_VARARG_WATCOM_WORKAROUND, \ + rettype, name, convfixed, dummy, numfixed, fixed) + +#define WX_VARARG_WATCOM_WORKAROUND_CTOR(name, numfixed, fixed, convfixed) \ + _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS, \ + _WX_VARARG_WATCOM_WORKAROUND_CTOR, \ + dummy, name, convfixed, dummy, numfixed, fixed) + +#define _WX_VARARG_WATCOM_UNPACK_1(a1) a1 +#define _WX_VARARG_WATCOM_UNPACK_2(a1, a2) a1, a2 +#define _WX_VARARG_WATCOM_UNPACK_3(a1, a2, a3) a1, a2, a3 +#define _WX_VARARG_WATCOM_UNPACK_4(a1, a2, a3, a4) a1, a2, a3, a4 +#define _WX_VARARG_WATCOM_UNPACK(N, convfixed) \ + _WX_VARARG_WATCOM_UNPACK_##N convfixed + +#define _WX_VARARG_PASS_WATCOM(i) a##i + +#define _WX_VARARG_WATCOM_WORKAROUND(N, rettype, name, \ + convfixed, dummy, numfixed, fixed) \ + template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)> \ + rettype name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed), \ + _WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \ + { \ + return name(_WX_VARARG_WATCOM_UNPACK(numfixed, convfixed), \ + _WX_VARARG_JOIN(N, _WX_VARARG_PASS_WATCOM)); \ + } + +#define _WX_VARARG_WATCOM_WORKAROUND_CTOR(N, dummy1, name, \ + convfixed, dummy2, numfixed, fixed) \ + template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)> \ + name(_WX_VARARG_FIXED_EXPAND(numfixed, fixed), \ + _WX_VARARG_JOIN(N, _WX_VARARG_ARG)) \ + { \ + name(_WX_VARARG_WATCOM_UNPACK(numfixed, convfixed), \ + _WX_VARARG_JOIN(N, _WX_VARARG_PASS_WATCOM)); \ + } + +#endif // __WATCOMC__ + #endif // _WX_STRVARARG_H_