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[wxWidgets.git] / include / wx / unichar.h

diff --git a/include/wx/unichar.h b/include/wx/unichar.h
index 6ce07892156f3072b1f00cd7f10f1933340448ec..9d0b593bd7918065be26e0ae3008b7d9329d9abb 100644 (file)
--- 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.
@@ -96,7 +96,7 @@ public:
     bool operator&&(bool v) const { return (bool)*this && v; }
 
     // 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; }
@@ -141,18 +141,26 @@ private:
     // 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 c;
+            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
@@ -175,7 +183,7 @@ 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 +195,8 @@ 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); }
@@ -210,7 +218,7 @@ 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); }
@@ -279,7 +287,7 @@ private:
 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;
 };