fixed visibility warning on Fedora

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

diff --git a/include/wx/strconv.h b/include/wx/strconv.h
index c25a05017c303f082eea4b3b516000a4d941a41b..2cd26bd30d1dbe6848d7eb841afa326812fd5819 100644 (file)
--- a/include/wx/strconv.h
+++ b/include/wx/strconv.h
@@ -29,6 +29,8 @@
 
 #if wxUSE_WCHAR_T
 
+class WXDLLIMPEXP_FWD_BASE wxString;
+
 // the error value returned by wxMBConv methods
 #define wxCONV_FAILED ((size_t)-1)
 
@@ -135,6 +137,12 @@ public:
     // encoding
     static size_t GetMaxMBNulLen() { return 4 /* for UTF-32 */; }
 
+#if wxUSE_UNICODE_UTF8
+    // return true if the converter's charset is UTF-8, i.e. char* strings
+    // decoded using this object can be directly copied to wxString's internal
+    // storage without converting to WC and than back to UTF-8 MB string
+    virtual bool IsUTF8() const { return false; }
+#endif
 
     // The old conversion functions. The existing classes currently mostly
     // implement these ones but we're in transition to using To/FromWChar()
@@ -175,6 +183,10 @@ public:
     virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;
 
     virtual wxMBConv *Clone() const { return new wxMBConvLibc; }
+
+#if wxUSE_UNICODE_UTF8
+    virtual bool IsUTF8() const { return wxLocaleIsUtf8; }
+#endif
 };
 
 #ifdef __UNIX__
@@ -189,7 +201,7 @@ public:
 class WXDLLIMPEXP_BASE wxConvBrokenFileNames : public wxMBConv
 {
 public:
-    wxConvBrokenFileNames(const wxChar *charset);
+    wxConvBrokenFileNames(const wxString& charset);
     wxConvBrokenFileNames(const wxConvBrokenFileNames& conv)
         : wxMBConv(),
           m_conv(conv.m_conv ? conv.m_conv->Clone() : NULL)
@@ -213,6 +225,10 @@ public:
         return m_conv->GetMBNulLen();
     }
 
+#if wxUSE_UNICODE_UTF8
+    virtual bool IsUTF8() const { return m_conv->IsUTF8(); }
+#endif
+
     virtual wxMBConv *Clone() const { return new wxConvBrokenFileNames(*this); }
 
 private:
@@ -244,6 +260,8 @@ public:
 class WXDLLIMPEXP_BASE wxMBConvUTF8 : public wxMBConv
 {
 public:
+    // FIXME-UTF8: split this class into multiple classes, one strict and
+    //             other lossy (PUA, OCTAL mappings)
     enum
     {
         MAP_INVALID_UTF8_NOT = 0,
@@ -257,6 +275,12 @@ public:
 
     virtual wxMBConv *Clone() const { return new wxMBConvUTF8(m_options); }
 
+#if wxUSE_UNICODE_UTF8
+    // NB: other mapping modes are not, strictly speaking, UTF-8, so we can't
+    //     take the shortcut in that case
+    virtual bool IsUTF8() const { return m_options == MAP_INVALID_UTF8_NOT; }
+#endif
+
 private:
     int m_options;
 };
@@ -365,7 +389,7 @@ class WXDLLIMPEXP_BASE wxCSConv : public wxMBConv
 public:
     // we can be created either from charset name or from an encoding constant
     // but we can't have both at once
-    wxCSConv(const wxChar *charset);
+    wxCSConv(const wxString& charset);
     wxCSConv(wxFontEncoding encoding);
 
     wxCSConv(const wxCSConv& conv);
@@ -381,6 +405,10 @@ public:
     virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;
     virtual size_t GetMBNulLen() const;
 
+#if wxUSE_UNICODE_UTF8
+    virtual bool IsUTF8() const;
+#endif
+
     virtual wxMBConv *Clone() const { return new wxCSConv(*this); }
 
     void Clear();
@@ -400,12 +428,12 @@ private:
 
     // set the name (may be only called when m_name == NULL), makes copy of
     // charset string
-    void SetName(const wxChar *charset);
+    void SetName(const char *charset);
 
 
     // note that we can't use wxString here because of compilation
     // dependencies: we're included from wx/string.h
-    wxChar *m_name;
+    char *m_name;
     wxFontEncoding m_encoding;
 
     // use CreateConvIfNeeded() before accessing m_convReal!
@@ -418,14 +446,35 @@ private:
 // declare predefined conversion objects
 // ----------------------------------------------------------------------------
 
+// Note: this macro is an implementation detail (see the comment in
+// strconv.cpp). The wxGet_XXX() and wxGet_XXXPtr() functions shouldn't be
+// used by user code and neither should XXXPtr, use the wxConvXXX macro
+// instead.
+#define WX_DECLARE_GLOBAL_CONV(klass, name)                             \
+    extern WXDLLIMPEXP_DATA_BASE(klass*) name##Ptr;                     \
+    extern WXDLLIMPEXP_BASE klass* wxGet_##name##Ptr();                 \
+    inline klass& wxGet_##name()                                        \
+    {                                                                   \
+        if ( !name##Ptr )                                               \
+            name##Ptr = wxGet_##name##Ptr();                            \
+        return *name##Ptr;                                              \
+    }
+
+
 // conversion to be used with all standard functions affected by locale, e.g.
 // strtol(), strftime(), ...
-extern WXDLLIMPEXP_DATA_BASE(wxMBConv&) wxConvLibc;
+WX_DECLARE_GLOBAL_CONV(wxMBConv, wxConvLibc)
+#define wxConvLibc wxGet_wxConvLibc()
 
 // conversion ISO-8859-1/UTF-7/UTF-8 <-> wchar_t
-extern WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvISO8859_1;
-extern WXDLLIMPEXP_DATA_BASE(wxMBConvUTF7&) wxConvUTF7;
-extern WXDLLIMPEXP_DATA_BASE(wxMBConvUTF8&) wxConvUTF8;
+WX_DECLARE_GLOBAL_CONV(wxCSConv, wxConvISO8859_1)
+#define wxConvISO8859_1 wxGet_wxConvISO8859_1()
+
+WX_DECLARE_GLOBAL_CONV(wxMBConvUTF8, wxConvUTF8)
+#define wxConvUTF8 wxGet_wxConvUTF8()
+
+WX_DECLARE_GLOBAL_CONV(wxMBConvUTF7, wxConvUTF7)
+#define wxConvUTF7 wxGet_wxConvUTF7()
 
 // conversion used for the file names on the systems where they're not Unicode
 // (basically anything except Windows)
@@ -444,7 +493,8 @@ extern WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvFileName;
 extern WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvCurrent;
 
 // the conversion corresponding to the current locale
-extern WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvLocal;
+WX_DECLARE_GLOBAL_CONV(wxCSConv, wxConvLocal)
+#define wxConvLocal wxGet_wxConvLocal()
 
 // the conversion corresponding to the encoding of the standard UI elements
 //
@@ -452,6 +502,8 @@ extern WXDLLIMPEXP_DATA_BASE(wxCSConv&) wxConvLocal;
 // needs to use a fixed encoding
 extern WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvUI;
 
+#undef WX_DECLARE_GLOBAL_CONV
+
 // ----------------------------------------------------------------------------
 // endianness-dependent conversions
 // ----------------------------------------------------------------------------
@@ -469,12 +521,6 @@ extern WXDLLIMPEXP_DATA_BASE(wxMBConv *) wxConvUI;
 // ----------------------------------------------------------------------------
 
 // filenames are multibyte on Unix and widechar on Windows
-#if defined(__UNIX__) || defined(__WXMAC__)
-    #define wxMBFILES 1
-#else
-    #define wxMBFILES 0
-#endif
-
 #if wxMBFILES && wxUSE_UNICODE
     #define wxFNCONV(name) wxConvFileName->cWX2MB(name)
     #define wxFNSTRINGCAST wxMBSTRINGCAST