X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6bd4f2812dca25f2c693ba27e5c117deee71fb3e..0555b2a0a3c509687e7fc5aeb160f5171b7e6311:/include/wx/unichar.h?ds=sidebyside

diff --git a/include/wx/unichar.h b/include/wx/unichar.h
index 2b93bf9c88..fe99644cdc 100644
--- a/include/wx/unichar.h
+++ b/include/wx/unichar.h
@@ -16,7 +16,7 @@
 #include "wx/stringimpl.h"
 
 class WXDLLIMPEXP_FWD_BASE wxUniCharRef;
-class WXDLLIMPEXP_FWD_BASE wxStringIteratorNode;
+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.
@@ -68,6 +68,27 @@ 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
@@ -155,7 +176,7 @@ private:
     {
 #if wxUSE_UNICODE
         if ( c < 0x80 )
-            return c;
+            return wx_truncate_cast(char, c);
 
         return ToHi8bit(c);
 #else
@@ -165,7 +186,8 @@ private:
 
     // helpers of the functions above called to deal with non-ASCII chars
     static value_type FromHi8bit(char c);
-    static char ToHi8bit(value_type c);
+    static char ToHi8bit(value_type v);
+    static bool GetAsHi8bit(value_type v, char *c);
 
 private:
     value_type m_value;
@@ -209,6 +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
@@ -306,17 +329,13 @@ inline wxUniChar& wxUniChar::operator=(const wxUniCharRef& c)
 // Comparison operators for the case when wxUniChar(Ref) is the second operand
 // implemented in terms of member comparison functions
 
-#define wxCMP_REVERSE(c1, c2, op) c2 op c1
-
-wxDEFINE_COMPARISONS(char, const wxUniChar&, wxCMP_REVERSE)
-wxDEFINE_COMPARISONS(char, const wxUniCharRef&, wxCMP_REVERSE)
-
-wxDEFINE_COMPARISONS(wchar_t, const wxUniChar&, wxCMP_REVERSE)
-wxDEFINE_COMPARISONS(wchar_t, const wxUniCharRef&, wxCMP_REVERSE)
+wxDEFINE_COMPARISONS_BY_REV(char, const wxUniChar&)
+wxDEFINE_COMPARISONS_BY_REV(char, const wxUniCharRef&)
 
-wxDEFINE_COMPARISONS(const wxUniChar&, const wxUniCharRef&, wxCMP_REVERSE)
+wxDEFINE_COMPARISONS_BY_REV(wchar_t, const wxUniChar&)
+wxDEFINE_COMPARISONS_BY_REV(wchar_t, const wxUniCharRef&)
 
-#undef wxCMP_REVERSE
+wxDEFINE_COMPARISONS_BY_REV(const wxUniChar&, const wxUniCharRef&)
 
 // for expressions like c-'A':
 inline int operator-(char c1, const wxUniCharRef& c2) { return -(c2 - c1); }