Prepare headers for C->C++ migration

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

diff --git a/include/wx/strconv.h b/include/wx/strconv.h
index 384a4b3769c6d763f7b6e64c0618a24adb1985cb..59aefd6a5c3de1d9b489a2967776c36a358b7b41 100644 (file)
--- a/include/wx/strconv.h
+++ b/include/wx/strconv.h
@@ -12,7 +12,7 @@
 #ifndef _WX_WXSTRCONVH__
 #define _WX_WXSTRCONVH__
 
 #ifndef _WX_WXSTRCONVH__
 #define _WX_WXSTRCONVH__
 

-#if defined(__GNUG__) && !defined(__APPLE__)
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

   #pragma interface "strconv.h"
 #endif
 
   #pragma interface "strconv.h"
 #endif
 


@@ -33,20 +33,24 @@
 #if wxUSE_WCHAR_T
 
 // ----------------------------------------------------------------------------
 #if wxUSE_WCHAR_T
 
 // ----------------------------------------------------------------------------

-// wxMBConv (base class for conversions, using libc conversion itself)
+// wxMBConv (abstract base class for conversions)

 // ----------------------------------------------------------------------------
 
 class WXDLLIMPEXP_BASE wxMBConv
 {
 public:
     // the actual conversion takes place here
 // ----------------------------------------------------------------------------
 
 class WXDLLIMPEXP_BASE wxMBConv
 {
 public:
     // the actual conversion takes place here

-    virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
-    virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
+    //
+    // note that n is the size of the output buffer, not the length of input
+    // (the latter is always supposed to be NUL-terminated)
+    virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const = 0;
+    virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const = 0;

 
 

-    // No longer inline since BC++ complains.
+    // MB <-> WC

     const wxWCharBuffer cMB2WC(const char *psz) const;
     const wxCharBuffer cWC2MB(const wchar_t *psz) const;
 
     const wxWCharBuffer cMB2WC(const char *psz) const;
     const wxCharBuffer cWC2MB(const wchar_t *psz) const;
 

+    // convenience functions for converting MB or WC to/from wxWin default

 #if wxUSE_UNICODE
     const wxWCharBuffer cMB2WX(const char *psz) const { return cMB2WC(psz); }
     const wxCharBuffer cWX2MB(const wchar_t *psz) const { return cWC2MB(psz); }
 #if wxUSE_UNICODE
     const wxWCharBuffer cMB2WX(const char *psz) const { return cMB2WC(psz); }
     const wxCharBuffer cWX2MB(const wchar_t *psz) const { return cWC2MB(psz); }


@@ -63,7 +67,22 @@ public:
     virtual ~wxMBConv();
 };
 
     virtual ~wxMBConv();
 };
 

-WXDLLIMPEXP_DATA_BASE(extern wxMBConv) wxConvLibc;
+// ----------------------------------------------------------------------------
+// wxMBConvLibc uses standard mbstowcs() and wcstombs() functions for
+//              conversion (hence it depends on the current locale)
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxMBConvLibc : public wxMBConv
+{
+public:
+    virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
+    virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;
+};
+
+// not very accurately named because it is not necessarily of type wxMBConvLibc
+// (but the name can't eb changed because of backwards compatibility) default
+// conversion
+WXDLLIMPEXP_DATA_BASE(extern wxMBConv&) wxConvLibc;

 
 // ----------------------------------------------------------------------------
 // wxMBConvUTF7 (for conversion using UTF7 encoding)
 
 // ----------------------------------------------------------------------------
 // wxMBConvUTF7 (for conversion using UTF7 encoding)


@@ -72,11 +91,11 @@ WXDLLIMPEXP_DATA_BASE(extern wxMBConv) wxConvLibc;
 class WXDLLIMPEXP_BASE wxMBConvUTF7 : public wxMBConv
 {
 public:
 class WXDLLIMPEXP_BASE wxMBConvUTF7 : public wxMBConv
 {
 public:

-    virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
-    virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
+    virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
+    virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;

 };
 
 };
 

-WXDLLIMPEXP_DATA_BASE(extern wxMBConvUTF7) wxConvUTF7;
+WXDLLIMPEXP_DATA_BASE(extern wxMBConvUTF7&) wxConvUTF7;

 
 // ----------------------------------------------------------------------------
 // wxMBConvUTF8 (for conversion using UTF8 encoding)
 
 // ----------------------------------------------------------------------------
 // wxMBConvUTF8 (for conversion using UTF8 encoding)


@@ -85,66 +104,122 @@ WXDLLIMPEXP_DATA_BASE(extern wxMBConvUTF7) wxConvUTF7;
 class WXDLLIMPEXP_BASE wxMBConvUTF8 : public wxMBConv
 {
 public:
 class WXDLLIMPEXP_BASE wxMBConvUTF8 : public wxMBConv
 {
 public:

-    virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
-    virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
+    virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
+    virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;
+};
+
+WXDLLIMPEXP_DATA_BASE(extern wxMBConvUTF8&) wxConvUTF8;
+
+// ----------------------------------------------------------------------------
+// wxMBConvUTF16LE (for conversion using UTF16 Little Endian encoding)
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxMBConvUTF16LE : public wxMBConv
+{
+public:
+    virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
+    virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;

 };
 
 };
 

-WXDLLIMPEXP_DATA_BASE(extern wxMBConvUTF8) wxConvUTF8;
+// ----------------------------------------------------------------------------
+// wxMBConvUTF16BE (for conversion using UTF16 Big Endian encoding)
+// ----------------------------------------------------------------------------

 
 

-#ifdef __WXGTK12__
+class WXDLLIMPEXP_BASE wxMBConvUTF16BE : public wxMBConv
+{
+public:
+    virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
+    virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;
+};

 
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------

-// wxMBConvUTF8 (for conversion using GDK's internal converions)
+// wxMBConvUCS4LE (for conversion using UTF32 Little Endian encoding)

 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 

-class WXDLLIMPEXP_BASE wxMBConvGdk : public wxMBConv
+class WXDLLIMPEXP_BASE wxMBConvUTF32LE : public wxMBConv

 {
 public:
 {
 public:

-    virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
-    virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
+    virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
+    virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;

 };
 
 };
 

-WXDLLIMPEXP_DATA_BASE(extern wxMBConvGdk) wxConvGdk;
+// ----------------------------------------------------------------------------
+// wxMBConvUCS4BE (for conversion using UTF32 Big Endian encoding)
+// ----------------------------------------------------------------------------

 
 

-#endif // wxGTK 1.2
+class WXDLLIMPEXP_BASE wxMBConvUTF32BE : public wxMBConv
+{
+public:
+    virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
+    virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;
+};

 
 // ----------------------------------------------------------------------------
 // wxCSConv (for conversion based on loadable char sets)
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // wxCSConv (for conversion based on loadable char sets)
 // ----------------------------------------------------------------------------
 

-class WXDLLIMPEXP_BASE wxCharacterSet;
+#include "wx/fontenc.h"

 
 class WXDLLIMPEXP_BASE wxCSConv : public wxMBConv
 {
 public:
 
 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 wxChar *charset);

+    wxCSConv(wxFontEncoding encoding);
+

     wxCSConv(const wxCSConv& conv);
     virtual ~wxCSConv();
 
     wxCSConv& operator=(const wxCSConv& conv);
 
     wxCSConv(const wxCSConv& conv);
     virtual ~wxCSConv();
 
     wxCSConv& operator=(const wxCSConv& conv);
 

-    void LoadNow();
-
-    virtual size_t MB2WC(wchar_t *buf, const char *psz, size_t n) const;
-    virtual size_t WC2MB(char *buf, const wchar_t *psz, size_t n) const;
+    virtual size_t MB2WC(wchar_t *outputBuf, const char *psz, size_t outputSize) const;
+    virtual size_t WC2MB(char *outputBuf, const wchar_t *psz, size_t outputSize) const;

 
     void Clear() ;
 
 private:
 
     void Clear() ;
 
 private:

+    // common part of all ctors
+    void Init();
+
+    // creates m_convReal if necessary
+    void CreateConvIfNeeded() const;
+
+    // do create m_convReal (unconditionally)
+    wxMBConv *DoCreate() const;
+
+    // set the name (may be only called when m_name == NULL), makes copy of
+    // charset string

     void SetName(const wxChar *charset);
 
     void SetName(const wxChar *charset);
 

+

     // note that we can't use wxString here because of compilation
     // dependencies: we're included from wx/string.h
     wxChar *m_name;
     // note that we can't use wxString here because of compilation
     // dependencies: we're included from wx/string.h
     wxChar *m_name;

-    wxCharacterSet *m_cset;
+    wxFontEncoding m_encoding;
+
+    // use CreateConvIfNeeded() before accessing m_convReal!
+    wxMBConv *m_convReal;

     bool m_deferred;
 };
 
 #define wxConvFile wxConvLocal
     bool m_deferred;
 };
 
 #define wxConvFile wxConvLocal

-WXDLLIMPEXP_DATA_BASE(extern wxCSConv) wxConvLocal;
-WXDLLIMPEXP_DATA_BASE(extern wxCSConv) wxConvISO8859_1;
+WXDLLIMPEXP_DATA_BASE(extern wxCSConv&) wxConvLocal;
+WXDLLIMPEXP_DATA_BASE(extern wxCSConv&) wxConvISO8859_1;

 WXDLLIMPEXP_DATA_BASE(extern wxMBConv *) wxConvCurrent;
 
 WXDLLIMPEXP_DATA_BASE(extern wxMBConv *) wxConvCurrent;
 

+// ----------------------------------------------------------------------------
+// endianness-dependent conversions
+// ----------------------------------------------------------------------------
+
+#ifdef WORDS_BIGENDIAN
+    typedef wxMBConvUTF16BE wxMBConvUTF16;
+    typedef wxMBConvUTF32BE wxMBConvUTF32;
+#else
+    typedef wxMBConvUTF16LE wxMBConvUTF16;
+    typedef wxMBConvUTF32LE wxMBConvUTF32;
+#endif
+

 // ----------------------------------------------------------------------------
 // filename conversion macros
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // filename conversion macros
 // ----------------------------------------------------------------------------


@@ -178,7 +253,12 @@ public:
     const char* cWX2MB(const char *psz) const { return psz; }
 };
 
     const char* cWX2MB(const char *psz) const { return psz; }
 };
 

-WXDLLIMPEXP_DATA_BASE(extern wxMBConv) wxConvLibc, wxConvFile, wxConvLocal, wxConvISO8859_1, wxConvUTF8;
+#define wxConvFile wxConvLocal
+
+WXDLLIMPEXP_DATA_BASE(extern wxMBConv) wxConvLibc,
+                                       wxConvLocal,
+                                       wxConvISO8859_1,
+                                       wxConvUTF8;

 WXDLLIMPEXP_DATA_BASE(extern wxMBConv *) wxConvCurrent;
 
 #define wxFNCONV(name) name
 WXDLLIMPEXP_DATA_BASE(extern wxMBConv *) wxConvCurrent;
 
 #define wxFNCONV(name) name