/*
* Name: wx/chartype.h
* Purpose: Declarations of wxChar and related types
- * Author: Joel Farley, Ove Kåven
+ * Author: Joel Farley, Ove Kåven
* Modified by: Vadim Zeitlin, Robert Roebling, Ron Lee
* Created: 1998/06/12
* RCS-ID: $Id$
#endif /* !defined(wxUSE_WCHAR_T) */
/* Unicode support requires wchar_t */
-#if wxUSE_UNICODE && !wxUSE_WCHAR_T
- #error "wchar_t must be available in Unicode build"
+#if !wxUSE_WCHAR_T
+ #error "wchar_t must be available"
#endif /* Unicode */
/*
#endif
#endif
-#if wxUSE_WCHAR_T
- #ifdef HAVE_WCHAR_H
- /* the current (as of Nov 2002) version of cygwin has a bug in its */
- /* wchar.h -- there is no extern "C" around the declarations in it */
- /* and this results in linking errors later; also, at least on some */
- /* Cygwin versions, wchar.h requires sys/types.h */
- #ifdef __CYGWIN__
- #include <sys/types.h>
- #ifdef __cplusplus
- extern "C" {
- #endif
- #endif /* Cygwin */
-
- #include <wchar.h>
-
- #if defined(__CYGWIN__) && defined(__cplusplus)
- }
- #endif /* Cygwin and C++ */
-
- #elif defined(HAVE_WCSTR_H)
- /* old compilers have relevant declarations here */
- #include <wcstr.h>
- #elif defined(__FreeBSD__) || defined(__DARWIN__) || defined(__EMX__)
- /* include stdlib.h for wchar_t */
- #include <stdlib.h>
- #endif /* HAVE_WCHAR_H */
-
- #ifdef HAVE_WIDEC_H
- #include <widec.h>
- #endif
-#endif /* wxUSE_WCHAR_T */
+#ifdef HAVE_WCHAR_H
+ /* the current (as of Nov 2002) version of cygwin has a bug in its */
+ /* wchar.h -- there is no extern "C" around the declarations in it */
+ /* and this results in linking errors later; also, at least on some */
+ /* Cygwin versions, wchar.h requires sys/types.h */
+ #ifdef __CYGWIN__
+ #include <sys/types.h>
+ #ifdef __cplusplus
+ extern "C" {
+ #endif
+ #endif /* Cygwin */
+
+ #include <wchar.h>
+
+ #if defined(__CYGWIN__) && defined(__cplusplus)
+ }
+ #endif /* Cygwin and C++ */
+
+#elif defined(HAVE_WCSTR_H)
+ /* old compilers have relevant declarations here */
+ #include <wcstr.h>
+#elif defined(__FreeBSD__) || defined(__DARWIN__) || defined(__EMX__)
+ /* include stdlib.h for wchar_t */
+ #include <stdlib.h>
+#endif /* HAVE_WCHAR_H */
+
+#ifdef HAVE_WIDEC_H
+ #include <widec.h>
+#endif
/* -------------------------------------------------------------------------- */
/* define wxHAVE_TCHAR_SUPPORT for the compilers which support the TCHAR type */
typedef char wxChar;
typedef signed char wxSChar;
typedef unsigned char wxUChar;
-#else /* Unicode */
+#else
/* VZ: note that VC++ defines _T[SU]CHAR simply as wchar_t and not as */
/* signed/unsigned version of it which (a) makes sense to me (unlike */
/* char wchar_t is always unsigned) and (b) was how the previous */
/* Sun's SunPro compiler supports the wchar_t type and wide character */
/* functions, but does not define __WCHAR_TYPE__. Define it here to */
/* allow unicode enabled builds. */
- #if defined(__SUNPRO_CC) || defined(__SUNPRO_C)
- #define __WCHAR_TYPE__ wxchar_t
+ #if (defined(__SUNPRO_CC) || defined(__SUNPRO_C)) && !defined(__WCHAR_TYPE__)
+ #define __WCHAR_TYPE__ wxchar_t
#endif
/* GNU libc has __WCHAR_TYPE__ which requires special treatment, see */
#endif /* ASCII/Unicode */
/* ------------------------------------------------------------------------- */
-/* define _T() and related macros */
+/* define wxStringCharType */
+/* ------------------------------------------------------------------------- */
+
+/* depending on the platform, Unicode build can either store wxStrings as
+ wchar_t* or UTF-8 encoded char*: */
+#if wxUSE_UNICODE
+ /* FIXME-UTF8: what would be better place for this? */
+ #if defined(wxUSE_UTF8_LOCALE_ONLY) && !defined(wxUSE_UNICODE_UTF8)
+ #error "wxUSE_UTF8_LOCALE_ONLY only makes sense with wxUSE_UNICODE_UTF8"
+ #endif
+ #ifndef wxUSE_UTF8_LOCALE_ONLY
+ #define wxUSE_UTF8_LOCALE_ONLY 0
+ #endif
+
+ #ifndef wxUSE_UNICODE_UTF8
+ #define wxUSE_UNICODE_UTF8 0
+ #endif
+
+ #if wxUSE_UNICODE_UTF8
+ #define wxUSE_UNICODE_WCHAR 0
+ #else
+ #define wxUSE_UNICODE_WCHAR 1
+ #endif
+#else
+ #define wxUSE_UNICODE_WCHAR 0
+ #define wxUSE_UNICODE_UTF8 0
+ #define wxUSE_UTF8_LOCALE_ONLY 0
+#endif
+
+/* define char type used by wxString internal representation: */
+#if wxUSE_UNICODE_WCHAR
+ typedef wchar_t wxStringCharType;
+#else /* wxUSE_UNICODE_UTF8 || ANSI */
+ typedef char wxStringCharType;
+#endif
+
+
+/* ------------------------------------------------------------------------- */
+/* define wxT() and related macros */
/* ------------------------------------------------------------------------- */
/* BSD systems define _T() to be something different in ctype.h, override it */
#undef _T
#endif
-/* could already be defined by tchar.h (it's quasi standard) */
-#ifndef _T
+/*
+ wxT ("wx text") macro turns a literal string constant into a wide char
+ constant. It is mostly unnecessary with wx 2.9 but defined for
+ compatibility.
+ */
+#ifndef wxT
#if !wxUSE_UNICODE
- #define _T(x) x
+ #define wxT(x) x
#else /* Unicode */
- /* use wxCONCAT_HELPER so that x could be expanded if it's a macro */
- #define _T(x) wxCONCAT_HELPER(L, x)
+ /*
+ Notice that we use an intermediate macro to allow x to be expanded
+ if it's a macro itself.
+ */
+ #ifndef wxCOMPILER_BROKEN_CONCAT_OPER
+ #define wxT(x) wxCONCAT_HELPER(L, x)
+ #else
+ #define wxT(x) wxPREPEND_L(x)
+ #endif
#endif /* ASCII/Unicode */
-#endif /* !defined(_T) */
+#endif /* !defined(wxT) */
+
+/*
+ wxT_2 exists only for compatibility with wx 2.x and is the same as wxT() in
+ that version but nothing in the newer ones.
+ */
+#define wxT_2(x) x
+
+/*
+ wxS ("wx string") macro can be used to create literals using the same
+ representation as wxString does internally, i.e. wchar_t in Unicode build
+ under Windows or char in UTF-8-based Unicode builds and (deprecated) ANSI
+ builds everywhere (see wxStringCharType definition above).
+ */
+#if wxUSE_UNICODE_WCHAR
+ /*
+ As above with wxT(), wxS() argument is expanded if it's a macro.
+ */
+ #ifndef wxCOMPILER_BROKEN_CONCAT_OPER
+ #define wxS(x) wxCONCAT_HELPER(L, x)
+ #else
+ #define wxS(x) wxPREPEND_L(x)
+ #endif
+#else /* wxUSE_UNICODE_UTF8 || ANSI */
+ #define wxS(x) x
+#endif
+
+/*
+ _T() is a synonym for wxT() familiar to Windows programmers. As this macro
+ has even higher risk of conflicting with system headers, its use is
+ discouraged and you may predefine wxNO__T to disable it. Additionally, we
+ do it ourselves for Sun CC which is known to use it in its standard headers
+ (see #10660).
+ */
+#if defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+ #ifndef wxNO__T
+ #define wxNO__T
+ #endif
+#endif
-/* although global macros with such names are normally bad, we want to have */
-/* another name for _T() which should be used to avoid confusion between */
-/* _T() and _() in wxWidgets sources */
-#define wxT(x) _T(x)
+#if !defined(_T) && !defined(wxNO__T)
+ #define _T(x) wxT(x)
+#endif
/* a helper macro allowing to make another macro Unicode-friendly, see below */
-#define wxAPPLY_T(x) _T(x)
+#define wxAPPLY_T(x) wxT(x)
/* Unicode-friendly __FILE__, __DATE__ and __TIME__ analogs */
#ifndef __TFILE__
projects / wxWidgets.git / blobdiff