Add factory functions for use with future unit tests.

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

diff --git a/include/wx/strvararg.h b/include/wx/strvararg.h
index ee87423fa786344bf36ff4867bb4db7d76f78087..8e40bd1ff106c29d477cadda5b6874b8acfbe670 100644 (file)
--- a/include/wx/strvararg.h
+++ b/include/wx/strvararg.h
@@ -47,6 +47,9 @@ 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.
+//
 // Parameters:
 // [ there are examples in square brackets showing values of the parameters
 //   for the wxFprintf() wrapper for fprintf() function with the following
@@ -111,11 +114,12 @@ class WXDLLIMPEXP_BASE wxString;
 // wxFormatString
 // ----------------------------------------------------------------------------
 
-// This class should be used for format string argument of the functions
+// 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())
+// 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
@@ -138,7 +142,13 @@ public:
     operator const char*() const
         { return wx_const_cast(wxFormatString*, this)->AsChar(); }
 private:
+    // InputAsChar() returns the value converted passed to ctor, only converted
+    // to char, while AsChar() takes the 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();
+    wxCharBuffer m_convertedChar;
 #endif // !wxUSE_UNICODE_WCHAR
 
 #if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
@@ -146,7 +156,9 @@ public:
     operator const wchar_t*() const
         { return wx_const_cast(wxFormatString*, this)->AsWChar(); }
 private:
+    const wchar_t* InputAsWChar();
     const wchar_t* AsWChar();
+    wxWCharBuffer m_convertedWChar;
 #endif // wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
 
 private:
@@ -433,28 +445,38 @@ WX_ARG_NORMALIZER_FORWARD(wxStdWideString, const wxStdWideString&);
 #if !wxUSE_UTF8_LOCALE_ONLY
 template<>
 struct wxArgNormalizerWchar<const wxUniChar&>
-    : public wxArgNormalizerWchar<wxChar/*FIXME-UTF8: should be wchar_t after ANSI removal*/>
 {
-    wxArgNormalizerWchar(const wxUniChar& s)
-        : wxArgNormalizerWchar<wxChar>((wxChar)s) {}
+    wxArgNormalizerWchar(const wxUniChar& s) : m_value(s) {}
+
+    // FIXME-UTF8: use wchar_t once ANSI build is removed
+    wxChar get() const { return m_value; }
+
+    wxChar m_value;
 };
 #endif // !wxUSE_UTF8_LOCALE_ONLY
 
 #if wxUSE_UNICODE_UTF8
 template<>
 struct wxArgNormalizerUtf8<const wxUniChar&>
-    : public wxArgNormalizerUtf8<char>
 {
-    wxArgNormalizerUtf8(const wxUniChar& s)
-        // FIXME-UTF8: this is lossy, we need to convert to string, but that
-        // requires format string update
-        : wxArgNormalizerUtf8<char>((const char)s) {}
+    wxArgNormalizerUtf8(const wxUniChar& s) : m_value(s.AsUTF8()) {}
+
+    const wxStringCharType *get() const { return m_value; }
+
+    wxUniChar::Utf8CharBuffer m_value;
 };
 #endif // wxUSE_UNICODE_UTF8
 
 WX_ARG_NORMALIZER_FORWARD(wxUniChar, const wxUniChar&);
 WX_ARG_NORMALIZER_FORWARD(const wxUniCharRef&, const wxUniChar&);
 WX_ARG_NORMALIZER_FORWARD(wxUniCharRef, const wxUniChar&);
+// convert char/wchar_t to wxUniChar to get output in the right encoding:
+WX_ARG_NORMALIZER_FORWARD(char, const wxUniChar&);
+WX_ARG_NORMALIZER_FORWARD(const char&, const wxUniChar&);
+WX_ARG_NORMALIZER_FORWARD(unsigned char, const wxUniChar&);
+WX_ARG_NORMALIZER_FORWARD(const unsigned char&, const wxUniChar&);
+WX_ARG_NORMALIZER_FORWARD(wchar_t, const wxUniChar&);
+WX_ARG_NORMALIZER_FORWARD(const wchar_t&, const wxUniChar&);
 
 
 #undef WX_ARG_NORMALIZER_FORWARD