Fix scrolling to the bottom in wxTextCtrl::AppendText().

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

diff --git a/interface/wx/unichar.h b/interface/wx/unichar.h
index 83f63525d8e9b0fed71eeff9424889da92c074b7..776c64486e7327a6d8dc64c281b39e075b1b5b5b 100644 (file)
--- a/interface/wx/unichar.h
+++ b/interface/wx/unichar.h
@@ -19,9 +19,9 @@ class wxUniChar
 {
 public:
     /**
-        This is not wchar_t on purpose, it needs to represent the entire
-        Unicode code points range and wchar_t may be too small for that
-        (e.g. on Win32 where wchar_t* is encoded in UTF-16).
+        A type capable of holding any Unicode code point.
+        We do not use wchar_t as it cannot do the job on Win32,
+        where wchar_t is a 16-bit type (wchar_t* is encoded using UTF-16 on Win32).
     */
     typedef wxUint32 value_type;
 
@@ -32,8 +32,8 @@ public:
 
     //@{
     /**
-        Create the character from 8bit character value encoded in the current
-        locale's charset.
+        Create a character from the 8-bit character value @a c using the
+        current locale encoding.
     */
     wxUniChar(char c);
     wxUniChar(unsigned char c);
@@ -58,6 +58,30 @@ public:
     */
     bool IsAscii() const;
 
+    /**
+        Returns true if the character is representable as a single byte in the
+        current locale encoding.
+
+        This function only returns true if the character can be converted in
+        exactly one byte, e.g. it only returns true for 7 bit ASCII characters
+        when the encoding used is UTF-8.
+
+        It is mostly useful to test if the character can be passed to functions
+        taking a char and is used by wxWidgets itself for this purpose.
+
+        @param c
+            An output pointer to the value of this Unicode character as a @c
+            char. Must be non-@NULL.
+        @return
+            @true if the object is an 8 bit char and @a c was filled with its
+            value as char or @false otherwise (@a c won't be modified then).
+
+        @see IsAscii()
+
+        @since 2.9.1
+     */
+    bool GetAsChar(char *c) const;
+
     //@{
     /**
         Conversions to char and wchar_t types: all of those are needed to be